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WO1995001833A1 - Procede de production de granules a partir de produits fondus - Google Patents

Procede de production de granules a partir de produits fondus Download PDF

Info

Publication number
WO1995001833A1
WO1995001833A1 PCT/EP1994/002093 EP9402093W WO9501833A1 WO 1995001833 A1 WO1995001833 A1 WO 1995001833A1 EP 9402093 W EP9402093 W EP 9402093W WO 9501833 A1 WO9501833 A1 WO 9501833A1
Authority
WO
WIPO (PCT)
Prior art keywords
products
bulk body
sulfur
fixed bed
piece
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.)
Ceased
Application number
PCT/EP1994/002093
Other languages
German (de)
English (en)
Inventor
Axel König
Herbert WÜRMSEHER
Matthias Kleinhans
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.)
Santrade Ltd
Original Assignee
Santrade Ltd
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 Santrade Ltd filed Critical Santrade Ltd
Priority to KR1019950700588A priority Critical patent/KR950702865A/ko
Priority to EP94920468A priority patent/EP0658129A1/fr
Priority to AU71248/94A priority patent/AU7124894A/en
Priority to JP7503798A priority patent/JPH08504129A/ja
Publication of WO1995001833A1 publication Critical patent/WO1995001833A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2/00—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic
    • B01J2/26—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic on endless conveyor belts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2/00—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic
    • B01J2/20—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic by expressing the material, e.g. through sieves and fragmenting the extruded length
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B9/00—Making granules
    • B29B9/10—Making granules by moulding the material, i.e. treating it in the molten state
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B17/00—Sulfur; Compounds thereof
    • C01B17/02—Preparation of sulfur; Purification
    • C01B17/0237—Converting into particles, e.g. by granulation, milling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B9/00—Making granules
    • B29B9/16—Auxiliary treatment of granules
    • B29B2009/168—Removing undesirable residual components, e.g. solvents, unreacted monomers; Degassing

Definitions

  • the invention relates to a process for the production of granules from molten products which are solidified in a piece-like form, in particular in the form of lozenges and in which the evaporation products occurring during production are suctioned off and a fixed bed bulk body is associated with the suction flow. which is used to crystallize the vaporous product portion.
  • the invention is based on the knowledge that if the process for the production of lump-like substances, for example for the production of sulfur in the form of lozenges, is used, these lozenges produced by the process can also be suitable for the crystallization of the from the To cause exhaust air to remove sulfur vapor.
  • the invention therefore proposes that some of the piece-like, in particular pastille-like products be used to form the fixed bed bulk body. As shown by tests, this configuration allows excellent cleaning of the exhaust air to be achieved. At the same time, the advantage is achieved that a subsequent filtration is saved.
  • the material of the bulk body which when using the method according to the invention only consists of the pure product itself, can in turn be used and sold as a product after use as a bulk body. It should be remembered that the bulk body itself is continuously emptied and refilled with the product, so that there is always an effective crystallization of the sulfur vapor in the region of the bulk body.
  • the invention is shown schematically using an exemplary embodiment.
  • the only drawing shows a plant for the production of sulfur pastilles.
  • sulfur is fed via a line (1) to a feed device (2) which divides the melt into individual drops and deposits it drop-like on a cooling belt (3) made of metal rotating in a clockwise direction.
  • the feed device (2) is encased by a suction hood (4) which has a suction nozzle (5), from which a suction line (6) leads to a suction blower (7).
  • a fixed bed body (8) is used, which serves to allow the still vaporous portion of the sulfur that emerges from the hood (4) to crystallize in order to clean the exhaust air.
  • the pastilles solidified at the right end of the suction hood (4) reach a conveyor (9) and from there into a collecting container (10).
  • a collecting container (10) According to the invention, it is proposed to branch off part of the piece-shaped, pastille-shaped product accumulated in the collecting container (10) and, as shown schematically with the dashed line (11), indicates, and to use as material for the formation of the bulk body (8).
  • the sulfur pastilles introduced into the bulk body (8) are ideally suited for the sulfur vapor to crystallize out on you.
  • the sulfur pastilles present in the bulk body (8) can be removed continuously or discontinuously in the direction of the arrow (12) and replaced by new pastilles which come on the feed path (11).
  • the pastils removed in the sense of arrow (12), which consist of pure sulfur, can then also be packaged and sold as a product.
  • the vaporous portion of the sulfur that occurs in this process can therefore largely be collected and reused before it is released into the exhaust air.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Gas Separation By Absorption (AREA)
  • Glanulating (AREA)

Abstract

Lors de la production de granulés de matières fondues, une partie du produit est présente sous forme de vapeurs qu'il faut éliminer de l'air d'évacuation. A cet effet, il est prévu d'utiliser les produits en morceaux résultant de la production, notamment des pastilles, directement pour former un lit fixe de matières en vrac (8), introduit dans le flux d'air d'évacuation et servant à cristalliser le soufre contenu dans la proportion de produit présente sous forme de vapeurs. L'invention s'applique à la production de pastilles de soufre.
PCT/EP1994/002093 1993-07-07 1994-06-28 Procede de production de granules a partir de produits fondus Ceased WO1995001833A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
KR1019950700588A KR950702865A (ko) 1993-07-07 1994-06-28 용해 생성물로부터 작은 입자를 제조하는 방법
EP94920468A EP0658129A1 (fr) 1993-07-07 1994-06-28 Procede de production de granules a partir de produits fondus
AU71248/94A AU7124894A (en) 1993-07-07 1994-06-28 Process for producing granulates from molten products
JP7503798A JPH08504129A (ja) 1993-07-07 1994-06-28 融解生成物から顆粒を製造する方法

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEP4322629.9 1993-07-07
DE4322629A DE4322629C1 (de) 1993-07-07 1993-07-07 Verfahren zur Herstellung von Granulat aus geschmolzenen Produkten

Publications (1)

Publication Number Publication Date
WO1995001833A1 true WO1995001833A1 (fr) 1995-01-19

Family

ID=6492185

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1994/002093 Ceased WO1995001833A1 (fr) 1993-07-07 1994-06-28 Procede de production de granules a partir de produits fondus

Country Status (9)

Country Link
EP (1) EP0658129A1 (fr)
JP (1) JPH08504129A (fr)
KR (1) KR950702865A (fr)
CN (1) CN1111901A (fr)
AU (1) AU7124894A (fr)
CA (1) CA2142832A1 (fr)
DE (1) DE4322629C1 (fr)
RU (1) RU95108248A (fr)
WO (1) WO1995001833A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007061408A1 (de) * 2007-12-11 2009-06-18 Sandvik Materials Technology Deutschland Gmbh Verfahren und Tropfenformer zum Herstellen von Pastillen sowie Verfahren zum Herstellen eines schwefelhaltigen Düngers

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1301606A (fr) * 1961-09-22 1962-08-17 United States Steel Corp Procédé et appareil perfectionné pour l'agglomération ou le frittage
US4705467A (en) * 1984-11-28 1987-11-10 Shell Oil Company Method and apparatus for filtering the air outlet of a solid sulphur particle production apparatus
EP0492149A2 (fr) * 1990-12-22 1992-07-01 Santrade Ltd. Procédé et dispositif pour nettoyer des substances chimiques

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1301606A (fr) * 1961-09-22 1962-08-17 United States Steel Corp Procédé et appareil perfectionné pour l'agglomération ou le frittage
US4705467A (en) * 1984-11-28 1987-11-10 Shell Oil Company Method and apparatus for filtering the air outlet of a solid sulphur particle production apparatus
EP0492149A2 (fr) * 1990-12-22 1992-07-01 Santrade Ltd. Procédé et dispositif pour nettoyer des substances chimiques

Also Published As

Publication number Publication date
CA2142832A1 (fr) 1995-01-19
KR950702865A (ko) 1995-08-23
JPH08504129A (ja) 1996-05-07
DE4322629C1 (de) 1994-08-18
CN1111901A (zh) 1995-11-15
AU7124894A (en) 1995-02-06
EP0658129A1 (fr) 1995-06-21
RU95108248A (ru) 1996-12-20

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