GB891537A - Improved pelleting process - Google Patents

Improved pelleting process

Info

Publication number
GB891537A
GB891537A GB334359A GB334359A GB891537A GB 891537 A GB891537 A GB 891537A GB 334359 A GB334359 A GB 334359A GB 334359 A GB334359 A GB 334359A GB 891537 A GB891537 A GB 891537A
Authority
GB
United Kingdom
Prior art keywords
polytetrafluoroethylene
sulphenamide
polymer
binding agent
disulphide
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
Application number
GB334359A
Inventor
Denis Anthony Kinsley
Alfons Anzelm Komander
Gordon Mellor
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.)
Imperial Chemical Industries Ltd
Original Assignee
Imperial Chemical Industries 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 Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Priority to GB334359A priority Critical patent/GB891537A/en
Publication of GB891537A publication Critical patent/GB891537A/en
Expired 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
    • B01J2/28—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic using special binding agents
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K9/00—Use of pretreated ingredients
    • C08K9/08—Ingredients agglomerated by treatment with a binding agent

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)

Abstract

Powdered organic chemical substances which are rubber accelerators, retarders, or antioxidants are shaped into pellets or granules by the use of a polymer of tetrafluoroethylene as binding agent. Substances specified are 2-mercapto benzthiazole, dibenzthiazyl disulphide, N-cyclohexylbenzthiazyl-2-sulphenamide, N-tertiary-butyl benzthiazyl-2-sulphenamide, N-tertiary-octylbenz thiazyl-2-sulphenamide, tetramethyl thiuram disulphide, tetraethyl thiuram disulphide, zinc diethyl p dithiocarbamate, diphenyl guanidine, di-o-tolyguanidine, and the zinc salt of 2-mercapto benzthiazole. The polymer may be polytetrafluoroethylene or a mixture thereof with a polymer of butadiene, isoprene, acrylonitrile, esters of acrylic or methacrylic acid, or vinyl acetate or with copolymers of conjugated diolefines and other olefinically unsaturated compounds. The binder may be introduced as an aqueous emulsion or dispersion into an aqueous slurry or suspension of the organic compound. Optional ingredients which may also be present are surfactants such as turkey red oil, alkylated \sH phenol/ethylene oxide condensates, sodium lauryl sulphate or sodium dodecyl benzene sulphonate; water-soluble polymers such as gelatin, casein, cellulose derivatives, polyvinyl methyl ether, polyvinyl pyrrolidone, sulphonated polystyrene, sodium polyacrylates, polyacrylamide, hydrolyzed polyacrylonitrile or hydrolyzed polyacrylic esters; and plasticizers such as dibutylphthalate or polypropylene adipate. The binding agent may be used in amounts of up to 12%, preferably 1-5%, by weight of the substance to be pelleted. In examples the binding agents are polytetrafluoroethylene; mixtures of butadiene/methyl methacrylate copolymers with polytetrafluoroethylene in which the copolymer predominates in amounts ranging from 3:1 to 15:1; and a mixture of 75% polyvinyl acetate and 25% polytetrafluoroethylene. According to the Provisional Specification polytetrafluoroethylene is of general application as a binding agent for pelleting powders. Specification 830,237 is referred to.
GB334359A 1959-01-30 1959-01-30 Improved pelleting process Expired GB891537A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB334359A GB891537A (en) 1959-01-30 1959-01-30 Improved pelleting process

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB334359A GB891537A (en) 1959-01-30 1959-01-30 Improved pelleting process

Publications (1)

Publication Number Publication Date
GB891537A true GB891537A (en) 1962-03-14

Family

ID=9756530

Family Applications (1)

Application Number Title Priority Date Filing Date
GB334359A Expired GB891537A (en) 1959-01-30 1959-01-30 Improved pelleting process

Country Status (1)

Country Link
GB (1) GB891537A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4548960A (en) * 1978-10-17 1985-10-22 Unasco Pty. Limited Pipe jointing compounds
EP0169382A2 (en) * 1984-06-25 1986-01-29 The B.F. GOODRICH Company Process for pelletization of powder materials and products therefrom
US4865760A (en) * 1988-04-06 1989-09-12 Ppg Industries, Inc. Calcium hypochlorite composition
US4970020A (en) * 1988-04-06 1990-11-13 Ppg Industries, Inc. Calcium hypochlorite composition
US5009806A (en) * 1988-04-06 1991-04-23 Ppg Industries, Inc. Calcium hypochlorite article
US5205961A (en) * 1991-04-18 1993-04-27 Ppg Industries, Inc. Granular calcium hypochlorite treatment process

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4548960A (en) * 1978-10-17 1985-10-22 Unasco Pty. Limited Pipe jointing compounds
EP0169382A2 (en) * 1984-06-25 1986-01-29 The B.F. GOODRICH Company Process for pelletization of powder materials and products therefrom
EP0169382A3 (en) * 1984-06-25 1988-07-27 The B.F. Goodrich Company Process for pelletization of powder materials and products therefrom
US4865760A (en) * 1988-04-06 1989-09-12 Ppg Industries, Inc. Calcium hypochlorite composition
US4970020A (en) * 1988-04-06 1990-11-13 Ppg Industries, Inc. Calcium hypochlorite composition
US5009806A (en) * 1988-04-06 1991-04-23 Ppg Industries, Inc. Calcium hypochlorite article
US5205961A (en) * 1991-04-18 1993-04-27 Ppg Industries, Inc. Granular calcium hypochlorite treatment process

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