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EP0642573B1 - Melange de tensioactifs pulverulents - Google Patents

Melange de tensioactifs pulverulents Download PDF

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Publication number
EP0642573B1
EP0642573B1 EP93909976A EP93909976A EP0642573B1 EP 0642573 B1 EP0642573 B1 EP 0642573B1 EP 93909976 A EP93909976 A EP 93909976A EP 93909976 A EP93909976 A EP 93909976A EP 0642573 B1 EP0642573 B1 EP 0642573B1
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EP
European Patent Office
Prior art keywords
weight
alkyl
alkali metal
formula
mixture
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP93909976A
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German (de)
English (en)
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EP0642573A1 (fr
Inventor
Lothar Pioch
Martina Kihn-Botulinski
Wolfgang Seiter
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Cognis IP Management GmbH
Original Assignee
Henkel AG and Co KGaA
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Classifications

    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D11/00—Special methods for preparing compositions containing mixtures of detergents
    • C11D11/0082—Special methods for preparing compositions containing mixtures of detergents one or more of the detergent ingredients being in a liquefied state, e.g. slurry, paste or melt, and the process resulting in solid detergent particles such as granules, powders or beads
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/66—Non-ionic compounds
    • C11D1/83—Mixtures of non-ionic with anionic compounds
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D11/00—Special methods for preparing compositions containing mixtures of detergents
    • C11D11/02—Preparation in the form of powder by spray drying
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/02—Inorganic compounds ; Elemental compounds
    • C11D3/04—Water-soluble compounds
    • C11D3/08—Silicates
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/02—Anionic compounds
    • C11D1/12—Sulfonic acids or sulfuric acid esters; Salts thereof
    • C11D1/14—Sulfonic acids or sulfuric acid esters; Salts thereof derived from aliphatic hydrocarbons or mono-alcohols
    • C11D1/146—Sulfuric acid esters
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/66—Non-ionic compounds
    • C11D1/662—Carbohydrates or derivatives

Definitions

  • the invention relates to powdery, pourable and free-flowing surfactant mixtures which contain alkyl sulfate, alkyl glycoside and inorganic carrier material, a process for their preparation and their use as premixes (compounds) for the production of particulate detergents and cleaning agents.
  • a process for the production of particulate detergents by drying a 40 to 80 percent aqueous slurry is known, which, based on the resulting solid, 2 to 60 wt .-% surfactants, which are at least 0.1 wt. % consist of alkyl glycosides, the total amount of alkyl glycosides being at most 2% by weight, containing 5 to 70% by weight of builder substances and up to 40% by weight of water-soluble fillers.
  • Preferred surfactants are anionic surfactants, especially those of the alkylbenzenesulfonate type, and nonionic surfactants, especially ethoxylated fatty alcohols.
  • the removal of water from the slurry is preferably accomplished by spray drying.
  • Modern powder detergents or cleaning agents generally consist of several separately manufactured powder components, which, depending on the nature of their ingredients, require different manufacturing processes.
  • a preferred manufacturing process for the surfactant-containing component of such agents is because of its relative simplicity spray drying an aqueous solution or slurry of the ingredients.
  • such a process requires a thermal load capacity of the surface-active ingredients, which is ensured when using anionic surfactants customary to date, in particular from the class of alkylbenzenesulfonates.
  • alkylbenzenesulfonate in washing and cleaning agents has recently been increasingly questioned because of the petroleum base of this surfactant.
  • sulfation products of compounds accessible from renewable raw materials, in particular fatty alcohols come into consideration as more environmentally compatible anionic surfactants with comparable good cleaning properties.
  • aqueous slurries containing alkylbenzenesulfonate can be spray-dried without problems at the temperatures customary in such processes, normally from about 250 ° C. to 350 ° C., it has now been found that under these conditions the danger exists with aqueous slurries which contain the same amount of alkyl sulfates self-ignition exists.
  • nonionic surfactants include, in particular, alkyl glycosides with long-chain alkyl groups, which have recently been used with preference because of their advantageous properties.
  • alkyl glycosides are normally obtained as highly viscous pastes, which means that their use in relatively high concentrations in aqueous slurries intended for spray drying did not appear to be promising because of the high mechanical stress in such a process.
  • alkyl sulfate, alkyl glycoside and inorganic carrier material which consists of at least 10% by weight of alkali silicate with a molar ratio of SiO 2 to alkali oxide above 2, which in a process for the production of alkylbenzenesulfonate-free powdered surfactant mixtures by drying while avoiding the problems mentioned and leading to storage-stable, pourable and free-flowing powder products which are known as premixes Compounds that can be used for the production of particulate detergents and cleaning agents.
  • the process according to the invention for the preparation of powdered surfactant mixtures free of alkylbenzenesulfonate essentially consists in that 10 to 40 parts by weight of alkylglycoside of the formula I R 1 -O (G) n (I) in which R 1 is an alkyl radical having 8 to 22 carbon atoms, G is a glycose unit and n is a number from 1 to 10, 5 to 20 parts by weight of alkyl sulfate of the formula II, R 2 -OSO 3 X (II) in which R 2 is an alkyl radical having 10 to 20 C atoms and X is an alkali, ammonium or alkyl or hydroxyalkyl-substituted ammonium ion, the weight ratio of alkyl glycoside to alkyl sulfate being 5: 1 to 1: 2, preferably 3: 1 is up to 1: 1, and 40 to 80 parts by weight of an inorganic carrier material, which consists of at least 10 wt
  • the water content in the powder product is not more than 15% by weight, in particular from 5% by weight to 15% by weight.
  • the residual water content relates to the free water not bound in the crystal lattice.
  • Flowable and pumpable in the context of the present invention are those aqueous slurries which can be handled without problems at temperatures below 80 ° C. by means of pumps and pipelines which are customarily used in spray drying processes.
  • Those used in the process according to the invention Slurries therefore preferably have viscosities in the range from 3,000 mPas to 15,000 mPas, measured at 60 ° C. to 75 ° C. using conventional viscometers, for example a Brookfield viscometer with spindle No. 3 at 20 revolutions per minute.
  • the process according to the invention is preferably carried out in such a way that 20 to 30 parts by weight of alkyl glycoside according to formula I, 8 to 15 parts by weight of alkyl sulfate according to formula II and 48 to 68 parts by weight of the inorganic carrier material are mixed with so much water that at least 35% by weight, in particular, a mixture containing 40% by weight to 50% by weight of water is formed.
  • spray towers in the upper part of which the slurry is sprayed into fine droplets by pressure nozzles, which move under the action of gravity into the lower part of the spray tower and come into contact with hot drying gases which are guided in cocurrent or preferably in countercurrent to the particles to be dried.
  • hot drying gases which are guided in cocurrent or preferably in countercurrent to the particles to be dried.
  • the temperature of the drying gases is not so high that the temperature of the spray-dried particles rises above the self-ignition temperature of these particles. In the context of the invention, this means that the temperature of the drying gases does not exceed a value of 250 ° C. and preferably in the range from 120 ° C.
  • the drying gas temperature is measured at the hottest point of the drying tower, the so-called ring channel.
  • the temperatures mentioned the same also applies to the further configuration of the production process according to the invention, fluidized bed or fluidized bed drying.
  • aqueous, generally 30 to 60 percent by weight alkyl glycoside pastes as are usually obtained in the course of alkyl glycoside production and, if appropriate, subsequent bleaching.
  • the alkyl sulfate component and in particular the carrier component can be used as an aqueous solution or slurry.
  • at least about 35% by weight, preferably 40 to 50% by weight, of water is present in the slurry to be dried .
  • a further advantage of the process according to the invention is the surprisingly low viscosity of the slurries leading to the compounds according to the invention, which is in particular in the range from 3,000 mPa ⁇ s to 15,000 mPa ⁇ s at temperatures from 60 ° C to 75 ° C, compared to slurries that contain the same amount of alkylbenzenesulfonate instead of alkyl sulfate.
  • the powdery, alkylbenzenesulfonate-free, free-flowing and free-flowing surfactant mixtures produced by the process according to the invention preferably contain 10% by weight to 40% by weight of alkyl glycoside of the formula I, R 1 -O (G) n (I) in which R 1 is an alkyl radical having 8 to 22 carbon atoms, G is a glycose unit and n is a number from 1 to 10, 5% by weight to 20% by weight of alkyl sulfate of the formula II, R 2 -OSO 3 X (II) in which R 2 is an alkyl radical having 10 to 20 C atoms and X is an alkali, ammonium or alkyl or hydroxyalkyl-substituted ammonium ion, the weight ratio of alkyl glycoside to alkyl sulfate being 5: 1 to 1: 2, in particular 3: 1 is up to 1: 1, 40% by weight to 80% by weight of an inorganic support material which
  • the inorganic carrier material present in the compounds according to the invention consists of at least 10% by weight, preferably 20 to 50% by weight. from alkali silicate with a molar ratio of SiO 2 to alkali oxide of at least 2, in particular from 2.0 to 3.5 and preferably from 2.5 to 3.5.
  • the preferred alkali metal is sodium.
  • the alkali metal carbonates, alkali metal bicarbonates and alkali metal sulfates and mixtures thereof are particularly suitable as further water-soluble inorganic carrier materials which can be used in addition to alkali metal silicate after drying, and the sodium salts are also preferred in these cases. It is also possible to incorporate water-insoluble carrier materials, which include, in particular, layered silicates, for example bentonites or smectites, and aluminosilicates, for example zeolites.
  • alkyl glycosides suitable for incorporation into the compounds according to the invention are compounds of the general formula I in which R 1 is an alkyl radical having 8 to 22 carbon atoms, G is a glycose unit and n is a number between 1 and 10.
  • R 1 is an alkyl radical having 8 to 22 carbon atoms
  • G is a glycose unit
  • n is a number between 1 and 10.
  • the glycoside component ((G) n in formula I) of such alkyl glycosides are oligomers or polymers from naturally occurring aldose or ketose monomers, in particular glucose, mannose, fructose, galactose, talose, gulose, altrose, allose , Idose, ribose, arabinose, xylose and lyxose.
  • the oligomers consisting of such glycosidically linked monomers are characterized not only by the type of sugar they contain, but also by their number, the so-called degree of oligomerization.
  • the degree of oligomerization (n in formula I) generally assumes fractional numerical values as the quantity to be determined analytically; it is between 1 and 10, for the alkyl glycosides preferably used below 1.5, in particular between 1.2 and 1.4.
  • the preferred monomer building block is glucose because of its good availability.
  • the alkyl part (R 1 in formula I) of the alkyl glycosides contained in the surfactant mixtures according to the invention preferably also originates from easily accessible derivatives of renewable raw materials, in particular from fatty alcohols, although their branched chain isomers, in particular so-called oxo alcohols, are also used to prepare usable alkyl glycosides can be. Accordingly, the primary alcohols with linear octyl, decyl, dodecyl, tetradecyl, hexadecyl or octadecyl radicals and mixtures thereof are particularly useful.
  • the alkyl glycosides can contain small amounts, for example 1 to 2%, of unreacted free fatty alcohol, which does not have a disadvantageous effect on the properties of the compounds produced therewith.
  • alkyl glycosides are preferably present in the compounds according to the invention in amounts of from 10% by weight to 40% by weight, in particular from 20% by weight to 30% by weight, the weight ratio of alkyl glycoside to alkyl sulfate being 5: 1 to 1 : 2, preferably 3: 1 to 1: 1.
  • Suitable alkyl sulfates for use in the process according to the invention are the compounds of the formula II in which R 2 is an alkyl radical having 10 to 20 C atoms and X is an alkali metal, ammonium or alkyl or hydroxyalkyl-substituted ammonium ion .
  • R 2 is an alkyl radical having 10 to 20 C atoms
  • X is an alkali metal, ammonium or alkyl or hydroxyalkyl-substituted ammonium ion .
  • the derivatives of fatty alcohols with in particular 12 to 18 carbon atoms and their branched-chain analogs, the so-called oxo alcohols are particularly suitable.
  • the alkyl sulfates can be prepared in a known manner by reacting the corresponding alcohol component with a conventional sulfating reagent, in particular sulfur trioxide or chlorosulfonic acid, and then neutralizing with alkali, ammonium or alkyl or hydroxyalkyl-substituted ammonium bases.
  • a conventional sulfating reagent in particular sulfur trioxide or chlorosulfonic acid
  • alkali, ammonium or alkyl or hydroxyalkyl-substituted ammonium bases are preferably present in the compounds according to the invention in amounts of 5% by weight to 20% by weight, in particular 8% by weight to 15% by weight.
  • the mixtures according to the invention can contain further surfactants, preferably nonionic surfactants and / or anionic surfactants, and in particular those of the sulfate or sulfonate type, in amounts of preferably not more than 10% by weight, in particular from 1% by weight to 5% by weight .-%, contain.
  • the sulfate-type surfactants which can also be used include, in particular, the sulfated alkoxylation products of the alcohols mentioned, so-called ether sulfates. Such ether sulfates preferably contain 2 to 30, in particular 4 to 10, ethylene glycol groups per molecule.
  • Suitable anionic surfactants also include the ⁇ -sulfoesters obtainable by reacting fatty acid esters with sulfur trioxide and subsequent neutralization, in particular those derived from fatty acids with 8 to 22 C atoms, preferably 12 to 18 C atoms, and linear alcohols with 1 to 6 C atoms , preferably 1 to 4 carbon atoms, derivative sulfonation products and the sulfofatty acids or salts thereof which can be derived from them by formal saponification.
  • the nonionic surfactants in question include the alkoxylates, in particular the ethoxylates and / or propoxylates of linear or branched-chain alcohols having 10 to 22 carbon atoms, preferably 12 to 18 carbon atoms.
  • the degree of alkoxylation of the alcohols is between 1 and 20, preferably between 3 and 10. They can be prepared in a known manner by reacting the corresponding alcohols with the corresponding alkylene oxides.
  • the derivatives of fatty alcohols are particularly suitable, although their branched chain isomers, in particular so-called oxo alcohols, can also be used to prepare alkoxylates which can be used.
  • the ethoxylates of primary alcohols with linear dodecyl, tetradecyl, hexadecyl or octadecyl radicals and mixtures thereof are particularly useful.
  • Corresponding ethoxylation and / or propoxylation products of alkylamines, vicinal diols and carboxamides which correspond to the alcohols mentioned with regard to the alkyl part can also be used.
  • Carrier substances are contained in the powdery mixtures according to the invention in amounts of 40% by weight to 80% by weight, preferably from 48% by weight to 68% by weight, it being essential that at least 10% by weight of the carrier material , preferably 20 wt .-% to 50 wt .-%, consist of the alkali silicate mentioned.
  • the compounds according to the invention can contain further constituents which are customary in washing and cleaning agents and are stable under the drying conditions.
  • These optional components include, in particular, complexing agents for heavy metals, for example aminopolycarboxylic acids and / or polyphosphonic acids, graying inhibitors, for example cellulose ethers, cobuilders, for example polymer polycarboxylic acids, Foam inhibitors, for example organopolysiloxanes or paraffins, and optical brighteners, for example stilbene disulfonic acid derivatives.
  • Such additives are preferably present in the powdery surfactant mixtures in amounts not exceeding 5% by weight, in particular 0.5% by weight to 2% by weight.
  • the powdered surfactant mixtures according to the invention are used in particular as pourable and free-flowing preliminary products (compounds) for the production of particulate detergents or cleaning agents.
  • the components should have average grain sizes of preferably 0.2 mm to 0.4 mm and should be largely free of particles with a diameter of more than 2 mm or less than 50 ⁇ m. In this context, largely free means an amount of not more than 0.8% by weight. This limit is normally observed by the compounds according to the invention obtained by spray drying, otherwise particles outside this size range can be removed by simple sieving and returned to the production process.
  • the bulk density of the compounds according to the invention is preferably between 200 and 500 grams per liter and can therefore certainly differ from that of the other powdery constituents of a finished washing or cleaning agent, normally without segregation occurring.
  • the compounds according to the invention are free-flowing, free-flowing powders which do not lose their advantageous properties even after prolonged storage.
  • the compounds according to the invention can be mixed in a manner known in principle with other pulverulent constituents customary in such agents, in particular abrasives, for example quartz powder, bleaching agents, for example perborates or percarbonates, and bleach activators, for example polyacylated alkylenediamines, Carboxylic anhydrides or polyacylated polyols.
  • abrasives for example quartz powder
  • bleaching agents for example perborates or percarbonates
  • bleach activators for example polyacylated alkylenediamines, Carboxylic anhydrides or polyacylated polyols.
  • the spraying of liquid, liquefied or dissolved ingredients, for example enzymes, dyes, fragrances or other surfactants, in particular nonionic surfactants, onto the compounds according to the invention is also possible in a manner known in principle.
  • the alkyl glycoside component By heating the alkyl glycoside component to approx. 60 ° C., adding it to the aqueous alkyl sulfate solution and adding the other components with stirring, the sodium silicate being added as the last component in the form of an approx. 35% by weight water glass solution, from the Raw materials specified in Table 1 produced aqueous slurries containing 40 to 44 wt .-% water.
  • the free-flowing powders M1 and M2 characterized in Table 1 by their composition were obtained with average grain sizes around 300 ⁇ m, which were free of particles over 1.6 mm in diameter, had dust contents of 0.1 to 0.65% by weight and Bulk densities of 240 to 300 grams per liter.

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Claims (14)

  1. Mélange d'agents tensioactifs apte au déchargement et à l'écoulement, dépourvu d'alcoylbenzènesulfonate, pulvérulent, qui est obtenu par séchage d'un mélange aqueux qui peut couler de ses constituants et qui renferme :
    - de 10 à 40 % en poids d'alcoylglycoside de formule I :

            R1-O-(G)n     (I)

    dans laquelle R1 signifie un radical alcoyle ayant de 8 à 22 atomes de carbone, G une unité de glycose et n un nombre allant de 1 à 10.
    - De 5 à 20 % en poids d'un alcoylsulfate de formule II :

            R2-OSO3X     (II)

    dans laquelle R2 signifie un radical alcoyle ayant de 10 à 20 atomes de carbone et X signifie un ion alcalin, un ion ammonium ou un ion ammonium substitué par un alcoyle ou par un hydroxyalcoyle, jusqu'à 15 %
    - de 40 à 80 % en poids d'un matériau de support minéral et, en poids d'eau,
    caractérisé en ce que le matériau de support minéral consiste pour au moins 10 % en poids, rapporté au matériau de support total, de silicate de métal alcalin ayant un rapport molaire de SiO2 à l'oxyde alcalin d'au moins 2, et le rapport pondéral de l'alcoylglycoside à l'acoylsulfate s'élève de 5:1 à 1:2, en particulier de 3:1 à 1:1.
  2. Mélange d'agents tensioactifs selon la revendication 1, caractérisé en ce qu'il contient de 20 à 30 % en poids d'alcoylglycoside conformément à la formule I, de 8 à 15 % en poids, d'un alcoylsulfate conformément à la formule II, de 48 à 68 % d'un matériau de support minéral, une quantité inférieure à 10 % en poids, en particulier de 1 % en poids à 5 % en poids, d'agent tensioactif anionique et/ou non-ionique additionnel et de 5 % en poids à 15 % en poids d'eau.
  3. Mélange d'agents tensioactifs selon la revendication 1 ou 2, caractérisé en ce que le matériau de support minéral est formé pour 20 à 50 % en poids de silicate alcalin avec un rapport molaire de SiO2 à l'oxyde alcalin d'au moins 2, en particulier de 2,0 à 3,5.
  4. Mélange d'agents tensioactifs selon l'une des revendications 1 à 3, caractérisé en ce que l'alcoylglycoside de formule I est un alcoylglucoside et possède un degré d'oligomérisation-inférieur à 1,5, en particulier de 1,2 à 1,4.
  5. Mélange d'agents tensioactifs selon l'une des revendications 1 à 4, caractérisé en ce que l'alcoylsulfate de formule II possède un radical alcoyle R2 ayant de 12 à 18 atomes de carbone.
  6. Utilisation d'un mélange d'agents tensioactifs pulvérulents selon l'une des revendications 1 à 5, comme pré-mélange apte au déchargement et à l'écoulement, en vue de la production de produits de lavage et de nettoyage sous forme particulaire.
  7. Procédé d'obtention de mélanges d'agents tensioactifs pulvérulents dépourvus d'alcoylbenzènesulfonate, par séchage de mélanges contenant des agents tensioactifs, aqueux, aptes à l'écoulement, dans lequel on mélange :
    - de 10 à 40 parties en poids d'alcoylglycoside de formule I :

            R1-O-(G)n     (I)

    dans laquelle R1 signifie un radical alcoyle ayant de 8 à 22 atomes de carbone, G une unité de glycose et n un nombre allant de 1 à 10 ;
    - de 5 à 20 parties en poids d'un alcoylsulfate de formule II :

            R2-OSO3X     (II)

    dans laquelle R2 signifie un radical alcoyle ayant de 10 à 20 atomes de carbone et X signifie un ion alcalin, un ion ammonium ou un ion ammonium substitué par un alcoyle ou par un hydroxyalcoyle, et
    - de 40 à 80 parties en poids d'un matériau de support minéral avec autant d'eau pour qu'il se forme un mélange apte à l'écoulement et pompable à des températures en dessous de 80°C et que l'on élimine par séchage par pulvérisation en utilisant des gaz de séchage à des températures en dessous de 250°C l'eau jusqu'à ce qu'un produit pulvérulent, apte à l'écoulement se forme, caractérisé en ce que le matériau de support minéral consiste pour au moins 10 % en poids d'un silicate alcalin ayant un rapport molaire de SiO2 à l'oxyde alcalin d'au moins 2 et que le rapport pondéral de l'alcoylglycoside à l'alcoylsulfate s'élève de 5:1 à 1:2.
  8. Procédé selon la revendication 7, caractérisé en ce que l'on mélange de 20 à 30 parties en poids d'alcoylglycoside selon la formule I, de 8 à 15 parties en poids d'alcoylsulfate selon la formule II et de 48 à 68 parties en poids du matériau de support minéral avec une quantité d'eau telle qu'il se forme un mélange contenant au moins 35 % en poids, en particulier de 40 à 50 % en poids d'eau.
  9. Procédé d'obtention de mélanges d'agents tensioactifs pulvérulents, dépourvus d'alcoylbenzènesulfonate par séchage de mélanges contenant des agents tensio-actifs aqueux, aptes à l'écoulement, caractérisé en ce que l'on mélange :
    - de 10 à 40 parties en poids d'alcoylglycoside de formule I :

            R1-O-(G)n     (I)

    dans laquelle R1 signifie un radical alcoyle ayant de 8 à 22 atomes de carbone, G une unité de glycose et n un nombre allant de 1 à 10 ;
    - de 5 à 20 parties en poids d'un alcoylsulfate de formule II :

            R2-OSO3X     (II)

    dans laquelle R2 signifie un radical alcoyle ayant de 10 à 20 atomes de carbone et X signifie un ion alcalin, ammonium ou un ion ammonium substitué par un alcoyle ou par un hydroxyalcoyle ; et
    - de 40 à 80 parties en poids d'un matériau de support minéral avec autant d'eau pour qu'il se forme un mélange pompable et apte à l'écoulement à des températures en dessous de 80°C et que l'on retire de celui-ci par séchage en lit fluidisé en utilisant des gaz de séchage à des températures en dessous de 250°C l'eau, jusqu'à ce qu'il se forme un produit pulvérulent, apte à l'écoulement, caractérisé en ce que le matériau de support minéral consiste pour au moins 10 % en poids d'un silicate alcalin ayant un rapport molaire de SiO2 à l'oxyde alcalin d'au moins 2 et que le rapport pondéral de l'alcoylglycoside à l'alcoylsulfate s'élève de 5:1 à 1:2.
  10. Procédé selon l'une des revendications 7 à 9, caractérisé en ce que le rapport pondéral de l'alcoylglycoside à l'alcoylsulfate s'élève de 3:1 à 1:1.
  11. Procédé selon l'une des revendications 7 à 10, caractérisé en ce que le matériau de support minéral consiste pour 20 à 50 % en poids de silicate alcalin ayant un rapport molaire de SiO2 à l'oxyde alcalin d'au moins 2, en particulier de 2,0 à 3,5 et en supplément au silicate alcalin renferme un carbonate alcalin, un hydrogénocarbonate alcalin, un sulfate alcalin, un silicate lamellaire ou un aluminosilicate ou un mélange à base de ceux-ci.
  12. Procédé selon l'une des revendications 7 à 11, caractérisé en ce que l'on met en oeuvre des gaz de séchage ayant des températures de 120 à 240°C, en particulier de 140 à 210°C.
  13. Procédé selon l'une des revendications 7 à 12, caractérisé en ce que le mélange aqueux qui doit être séché possède une viscosité de 3000 mPa.s à 15.000 mPa.s, mesurée de 60 à 75°C.
  14. Utilisation d'un mélange d'agents tensioactifs pulvérulent, produit selon le procédé conforme à l'une des revendications 7 à 13, en tant que pré-mélange apte au déchargement et à l'écoulement en vue de la production de produits de lavage ou de nettoyage sous forme particulaire.
EP93909976A 1992-05-21 1993-05-13 Melange de tensioactifs pulverulents Expired - Lifetime EP0642573B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4216775A DE4216775A1 (de) 1992-05-21 1992-05-21 Pulverförmige Tensidmischung
DE4216775 1992-05-21
PCT/EP1993/001192 WO1993023514A1 (fr) 1992-05-21 1993-05-13 Melange de tensioactifs pulverulents

Publications (2)

Publication Number Publication Date
EP0642573A1 EP0642573A1 (fr) 1995-03-15
EP0642573B1 true EP0642573B1 (fr) 1996-06-19

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Application Number Title Priority Date Filing Date
EP93909976A Expired - Lifetime EP0642573B1 (fr) 1992-05-21 1993-05-13 Melange de tensioactifs pulverulents

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EP (1) EP0642573B1 (fr)
JP (1) JP3565842B2 (fr)
KR (1) KR100278221B1 (fr)
AT (1) ATE139559T1 (fr)
DE (2) DE4216775A1 (fr)
ES (1) ES2088673T3 (fr)
WO (1) WO1993023514A1 (fr)

Cited By (1)

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US7484603B2 (en) 2001-08-30 2009-02-03 Fox Factory, Inc. Shock absorber with electronic control

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Publication number Priority date Publication date Assignee Title
DE4329389A1 (de) * 1993-09-01 1995-03-02 Henkel Kgaa Sprühgetrocknetes Wasch- oder Reinigungsmittel oder Komponente hierfür
GB9424444D0 (en) * 1994-12-02 1995-01-18 Unilever Plc Detergent compositions
DE19501269A1 (de) 1995-01-18 1996-07-25 Henkel Kgaa Amorphes Alkalisilikat-Compound
DE19524464C2 (de) * 1995-07-10 2000-08-24 Cognis Deutschland Gmbh Verfahren zur Herstellung von Zuckertensidgranulaten
FR2743085B1 (fr) * 1995-12-29 1999-02-26 Rhone Poulenc Chimie Composition detergente pour le lavage du linge contenant un silicate de sodium comme adjuvant principal de detergence
GB2318584A (en) * 1996-10-25 1998-04-29 Procter & Gamble Process for preparing detergent compositions by spray drying
GB9711356D0 (en) 1997-05-30 1997-07-30 Unilever Plc Particulate detergent composition
GB9825560D0 (en) 1998-11-20 1999-01-13 Unilever Plc Particulate laundry detergent compositons containing nonionic surfactant granules
GB9825563D0 (en) 1998-11-20 1999-01-13 Unilever Plc Particulate laundry detergent compositions containing anionic surfactant granules
GB9825558D0 (en) * 1998-11-20 1999-01-13 Unilever Plc Granular detergent components and particulate detergent compositions containing them
DE19923626A1 (de) * 1999-05-22 2000-11-23 Henkel Kgaa Verfahren zur Herstellung von Tensidgranulaten
DE10212169A1 (de) * 2002-03-19 2003-10-02 Sued Chemie Ag Waschmittelzusatz mit hohem Gehalt an nichtionischen Tensiden und schnellem Auflösevermögen
TWI247798B (en) * 2003-06-06 2006-01-21 Kao Corp Detergent composition for hard surface
ATE501243T1 (de) * 2006-10-16 2011-03-15 Procter & Gamble Verfahren zur sprühtrocknung zur herstellung von sprühgetrocknete stark wasserlösliche waschmittel mit geringer dichte und niedrigem buildergehalt.

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US4536319A (en) * 1983-10-04 1985-08-20 The Procter & Gamble Company Compositions comprising alkylpolysaccharide detergent surfactant
US4675127A (en) * 1985-09-26 1987-06-23 A. E. Staley Manufacturing Company Process for preparing particulate detergent compositions
WO1990004630A1 (fr) * 1988-10-21 1990-05-03 Henkel Corporation Procede de preparation d'une boue detergente et d'une composition detergente particulaire
DE3838808A1 (de) * 1988-11-17 1990-05-23 Henkel Kgaa Wasch- und reinigungsmittel, enthaltend ein tensidgemisch aus alkylglykosiden und aniontensiden
DE4102745A1 (de) * 1991-01-30 1992-08-06 Henkel Kgaa Pulverfoermige tensidmischung

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7484603B2 (en) 2001-08-30 2009-02-03 Fox Factory, Inc. Shock absorber with electronic control

Also Published As

Publication number Publication date
JPH07508773A (ja) 1995-09-28
DE59303031D1 (de) 1996-07-25
EP0642573A1 (fr) 1995-03-15
DE4216775A1 (de) 1993-11-25
KR950701677A (ko) 1995-04-28
ES2088673T3 (es) 1996-08-16
KR100278221B1 (ko) 2001-04-02
WO1993023514A1 (fr) 1993-11-25
ATE139559T1 (de) 1996-07-15
JP3565842B2 (ja) 2004-09-15

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