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EP1198417A1 - Procede et dispositif pour la production continue de naalcl4 ou de nafecl4 - Google Patents

Procede et dispositif pour la production continue de naalcl4 ou de nafecl4

Info

Publication number
EP1198417A1
EP1198417A1 EP00929420A EP00929420A EP1198417A1 EP 1198417 A1 EP1198417 A1 EP 1198417A1 EP 00929420 A EP00929420 A EP 00929420A EP 00929420 A EP00929420 A EP 00929420A EP 1198417 A1 EP1198417 A1 EP 1198417A1
Authority
EP
European Patent Office
Prior art keywords
metal
reaction
reactor vessel
melt
solid
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.)
Withdrawn
Application number
EP00929420A
Other languages
German (de)
English (en)
Inventor
Hans Leonhard Ohrem
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BASF SE
Original Assignee
Merck Patent GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Merck Patent GmbH filed Critical Merck Patent GmbH
Publication of EP1198417A1 publication Critical patent/EP1198417A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B9/00—General methods of preparing halides
    • C01B9/02—Chlorides
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F7/00—Compounds of aluminium
    • C01F7/78—Compounds containing aluminium, with or without oxygen or hydrogen, and containing two or more other elements
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G49/00—Compounds of iron
    • C01G49/009—Compounds containing iron, with or without oxygen or hydrogen, and containing two or more other elements

Definitions

  • the invention relates to a method and a device for producing NaDCI 4 , in which D is aluminum or iron, a melt of aluminum or iron with chlorine gas to form a gaseous metal halide in a first reaction mixture and then to the corresponding one in a second reaction mixture with solid sodium chloride Connection is implemented and separated as a melt
  • Salt smelting can be used as a storage medium in heat storage, as a heat transfer medium, e.g. in heating baths for covering and cleaning molten metals for the electroplating coating of refractory materials or as melting electrolytes in Pmarbatte ⁇ en, as described in GB 2046506
  • Another use of these salts is in rechargeable sodium batteries.
  • the salts are used in batteries that have operating temperatures between 130 ° C and 200 ° C (Abraham J Electrochem Soc Vol 137, 1 189-1 190 (1990))
  • DE 3419279 describes an electrochemical cell in which the cathode matrix is impregnated with a sodium aluminum halide 5 molten salt electrolyte
  • This high-temperature cell consists of an electrode made of liquid sodium, a beta aluminum electrolyte and an electrode made of Q-transition metal chloride in NaAlCU melt (Cleaver J Electrochem Soc Vol 142, 3409-3413, ( 1995))
  • alkali metal halide is NaC! the molten alkali metal sodium
  • the separator is beta alumina. Due to the use of pure sodium, special safety precautions, such as working in a protective gas atmosphere, must be taken. The reactions must take place in separate cells, since poisoning of the separator by the by-product AlHal 3 must be prevented.
  • the 2-step cleaning process consists of an oxygen treatment to break down the organic impurities and an aluminum treatment to precipitate iron and heavy metals.
  • the aluminum treatment must be carried out under a nitrogen or argon atmosphere.
  • the object of the invention is to provide a continuous process for
  • Manufacturing pure salt melts to provide the excludes adverse environmental influences, minimizes energy consumption and enables an optimal space-time yield.
  • the task is also to make large quantities of molten salt available in the shortest possible time.
  • the object of the invention is achieved by a method for producing Salzschmeize ⁇ and their mixtures of the general formula
  • the invention further relates to a device for
  • the process products are for use as a melt electrolyte in electrochemical cells, as a storage medium in heat stores, as a heat transfer medium, e.g. in
  • Heating baths suitable for covering and cleaning molten metals, for electroplating high-melting materials or as melting electrolytes in rechargeable sodium batteries and primary batteries.
  • the solids for example NaCI and AICI 3 are mixed and heated to the melting temperature. The amount of heat required for this must be supplied from the outside.
  • a major advantage of the process is the use of cheaper raw materials and the use of the heat of reaction released to temper the process. This saves process steps such as the condensation of the metal halide (DCI 3 ) and reduces the energy required to carry out the process.
  • DCI 3 metal halide
  • reaction vessels which appear suitable to the person skilled in the art can be used for the process.
  • a feed device for gas emissivity is required for the reaction with chlorine gas.
  • the reaction vessel is bricked up fire-proof.
  • the metal D is provided in powder or granular form for the process via a solid dosing unit (3).
  • a collecting device (4) provided with a feed line to the downstream reaction vessel (5), is installed above the reaction vessel (1) for the melt.
  • the reaction product is fed in between the upper quarter and the lower quarter of the reactor vessel (5), which contains a mixture of metal D and sodium chloride in solid form. A complete conversion of the reactants to the reaction products can thus be ensured.
  • the resulting salt melt runs down through the alkali salt bed (NaCI), which is carried by a carrier grate or a coarse filter plate.
  • NaCI alkali salt bed
  • a mixture of solid sodium chloride and metal D in powder or granular form is fed continuously to the reaction vessel (5) via a solids metering unit (6) in accordance with the amount of end product formed and separated.
  • Unwanted HCI gas is generated by water that is introduced through the raw materials. This can react to the meta-halide (DCI 3 ) by adding the appropriate metal granules or powder (D) in the alkali salt bed.
  • reactor vessel (5) is followed by a further reactor vessel (7) with an alkali salt bed in the direction of flow to purify the melt, in order to allow the resulting meta-halide (DCI 3 ) to react to NaDCI 4 .
  • a temperature control device is only necessary for the one-time heating in the starting phase and possibly for cooling.
  • the energy required for melting the metal granulate (D) is also provided by the heat of reaction.
  • the process can be carried out continuously or batchwise as required.
  • the raw materials can be fed to the reaction vessel (1) premixed via the solids metering device (3).
  • the filling can be carried out under inert gas.
  • the heatable reaction vessel (1) contains molten metal. Iron and aluminum are suitable as metals (D). About the
  • the supply device (2) is fed chlorine gas into the reaction apparatus.
  • the volume of the melt and the volume flow of the gas are determined as a function of the required residence time and the desired throughput.
  • a temperature above the melting point of the metal (D) is set in the reaction vessel (1).
  • the gaseous metal halide (DCI 3 ) is passed to the reaction vessel (5) via the collecting device (4) for the resulting reaction product.
  • the MetaUhalogenid is fed between the upper and the lower quarter of the reactor vessel (5), preferably between the upper quarter and the middle, of the metal granulate or metal powder and alkali salt bed. According to the consumption a mixture of metal granules or powder (D) and alkali metal salt (NaCl) is continuously fed to the reactor vessel via a solids metering device (6).
  • the melt can be contaminated by contact with water or air humidity.
  • the hydrogen halide formed can react with the metal granules (D) added to the bed of salt in the reactor vessel (5) to give the metal halide (DCI 3 ).
  • the MetaUhalogenid is passed over the reactor vessel (7).
  • the purification unit equipped with alkali salt NaCI is flowed through from bottom to top.
  • the MetaUhalogenid DCI 3 is converted with the alkali salt NaCI to the desired salt NaDCI 4 .
  • the flow through the reactor vessel (7) from bottom to top is not mandatory. However, it has the advantage that the particles, which become smaller as a result of the reaction, are not pressed by the flow onto the sieve plate and block it. Nevertheless, a homogeneous flow (plug flow) in the column is guaranteed in this way.
  • the homogeneous flow is essential for complete implementation in the purification unit.
  • the resulting low-viscosity aluminate runs out of the bottom of the reaction vessel and is then advantageously passed over a reactor vessel which contains a bed of pure common salt. In it residues of AICI 3 also react to the desired product.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)
  • Compounds Of Iron (AREA)

Abstract

L'invention concerne un procédé et un dispositif pour la production de NaDCl4, où D représente aluminium ou fer. Dans le procédé selon l'invention, on fait réagir lors d'une première étape une masse fondue d'aluminium ou de fer avec du gaz chloré afin d'obtenir un halogénure métallique gazeux que l'on fait ensuite réagir, lors d'une deuxième étape, avec du chlorure de sodium solide pour obtenir le composé correspondant et que l'on sépare sous forme de masse fondue.
EP00929420A 1999-05-28 2000-04-25 Procede et dispositif pour la production continue de naalcl4 ou de nafecl4 Withdrawn EP1198417A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19924495 1999-05-28
DE19924495A DE19924495A1 (de) 1999-05-28 1999-05-28 Verfahren und Vorrichtung zur kontinuierlichen Herstellung von NaDCI¶4¶
PCT/EP2000/003686 WO2000073209A1 (fr) 1999-05-28 2000-04-25 PROCEDE ET DISPOSITIF POUR LA PRODUCTION CONTINUE DE NaAlCl4 OU DE NaFeCl¿4?

Publications (1)

Publication Number Publication Date
EP1198417A1 true EP1198417A1 (fr) 2002-04-24

Family

ID=7909476

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00929420A Withdrawn EP1198417A1 (fr) 1999-05-28 2000-04-25 Procede et dispositif pour la production continue de naalcl4 ou de nafecl4

Country Status (7)

Country Link
US (2) US6733738B1 (fr)
EP (1) EP1198417A1 (fr)
JP (1) JP2003500327A (fr)
AU (1) AU4751300A (fr)
DE (1) DE19924495A1 (fr)
WO (1) WO2000073209A1 (fr)
ZA (1) ZA200110474B (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5396954B2 (ja) 2008-03-24 2014-01-22 三菱マテリアル株式会社 クロロシランの精製装置及びクロロシラン製造方法
CN104282954B (zh) * 2013-07-09 2016-09-07 中国科学院上海硅酸盐研究所 制备可熔融电解质的方法及其装置
CN104282955A (zh) * 2013-07-09 2015-01-14 中国科学院上海硅酸盐研究所 制备可熔融电解质的方法及其装置
US9567232B1 (en) 2015-08-20 2017-02-14 General Electric Company Method for preparing sodium chloro-aluminate
CN112456462B (zh) * 2019-09-09 2022-03-29 江苏优士化学有限公司 一种四氯铝酸钠催化剂组合物的回收处理方法
CN110817913A (zh) * 2019-09-29 2020-02-21 浙江安力能源有限公司 一种钠盐电池高纯四氯铝酸钠的制备方法
WO2025162842A1 (fr) 2024-01-31 2025-08-07 Nobian Industrial Chemicals B.V. Procédé de production de tétrachlorure d'aluminium de sodium

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3729543A (en) 1971-01-21 1973-04-24 Dunn Inc Wendell E Process for preparing alkali-metal tetra-chloroferrate
US3683590A (en) 1971-04-29 1972-08-15 Wendell E Dunn Jr Dual flue condenser
US3799746A (en) * 1971-10-29 1974-03-26 H Underwood Apparatus for manufacturing anhydrous aluminum chloride
US3870511A (en) * 1971-12-27 1975-03-11 Union Carbide Corp Process for refining molten aluminum
US3944647A (en) 1974-04-08 1976-03-16 Scm Corporation Recovering chlorine from the chlorination of titaniferous material
US4076794A (en) * 1974-08-01 1978-02-28 Foote Mineral Company Process for the production of high purity alkali metal tetrahaloaluminates and products produced thereby
US4026698A (en) * 1975-09-18 1977-05-31 Urban Reclamation Technologies, Inc. Removal of tin from molten iron by chlorination, using oxygen to conserve chlorine and to produce tin oxide
US4039647A (en) * 1975-12-24 1977-08-02 Aluminum Company Of America Production of aluminum chloride
DE2835542A1 (de) 1978-08-14 1980-02-28 Riedel De Haen Ag Verfahren zur herstellung von wasserfreien alkalichloroferraten (ii, iii)
FR2609707B1 (fr) * 1987-01-21 1991-06-07 Atochem Procede de purification du chlorure d'aluminium
US5057194A (en) * 1987-04-20 1991-10-15 Aluminum Company Of America Salt-based melting process
US5177304A (en) * 1990-07-24 1993-01-05 Molten Metal Technology, Inc. Method and system for forming carbon dioxide from carbon-containing materials in a molten bath of immiscible metals

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO0073209A1 *

Also Published As

Publication number Publication date
WO2000073209A1 (fr) 2000-12-07
AU4751300A (en) 2000-12-18
US20040223902A1 (en) 2004-11-11
JP2003500327A (ja) 2003-01-07
US6733738B1 (en) 2004-05-11
ZA200110474B (en) 2003-03-20
DE19924495A1 (de) 2000-11-30

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