GB683065A - Improvements in and relating to the treatment of powders - Google Patents

Improvements in and relating to the treatment of powders

Info

Publication number
GB683065A
GB683065A GB1986349A GB1986349A GB683065A GB 683065 A GB683065 A GB 683065A GB 1986349 A GB1986349 A GB 1986349A GB 1986349 A GB1986349 A GB 1986349A GB 683065 A GB683065 A GB 683065A
Authority
GB
United Kingdom
Prior art keywords
alcohol
powder
mixed
per cent
powders
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
GB1986349A
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.)
ROBERT KENNETH FOURNESS
Yorkshire Dyeware and Chemical Co Ltd
Original Assignee
ROBERT KENNETH FOURNESS
Yorkshire Dyeware and Chemical Co 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 ROBERT KENNETH FOURNESS, Yorkshire Dyeware and Chemical Co Ltd filed Critical ROBERT KENNETH FOURNESS
Priority to GB1986349A priority Critical patent/GB683065A/en
Publication of GB683065A publication Critical patent/GB683065A/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
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
    • C04B24/02—Alcohols; Phenols; Ethers
    • C04B24/026—Fatty alcohols
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B67/00—Influencing the physical, e.g. the dyeing or printing properties of dyestuffs without chemical reactions, e.g. by treating with solvents grinding or grinding assistants, coating of pigments or dyes; Process features in the making of dyestuff preparations; Dyestuff preparations of a special physical nature, e.g. tablets, films
    • C09B67/0071—Process features in the making of dyestuff preparations; Dehydrating agents; Dispersing agents; Dustfree compositions
    • C09B67/0092—Dyes in solid form
    • C09B67/0094—Treatment of powders, e.g. antidusting
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K3/00—Materials not provided for elsewhere
    • C09K3/22—Materials not provided for elsewhere for dust-laying or dust-absorbing

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)
  • Soil Conditioners And Soil-Stabilizing Materials (AREA)

Abstract

The tendency of dyestuff powders to form dust clouds is reduced by intimately mixing with the powder a liquid aliphatic alcohol of 7 or more carbon atoms per molecule in such an amount that the powder remains free flowing. Water insoluble dyes, e.g. those used for cellulose acetate rayon or nylon, or water-soluble dyes, e.g. haematin, may be treated. Mixtures of dyes may be treated and dispersing agents may be present. The use of 0.1 to 2 per cent of alcohol by weight is mentioned, generally 1 per cent is satisfactory. The alcohol may be mixed by tumbling with the powder or added in a volatile solvent, e.g. ether and carbon tetrachloride, or added to aqueous dyestuff pastes before or during drying. In examples: (1) 1 : 4-dimethylamino anthraquinone containing a sulphonated urea-cresolformaldehyde condensate (cf. Specification 510,515), is treated with oleyl alcohol in ether; (3) haematine crystals are mixed with lauryl alcohol; (5) Suldura Black (Colour Index No. 978) is mixed with octyl alcohol; (6) Benzanil Black E Extra (Colour Index No. 581) is mixed with oleyl alcohol, and (7) Dycamine Fast Red GL salt is mixed with lauryl alcohol. Specification 576,100 also is referred to.ALSO:The tendency of powders, e.g. silica powders, to form dust clouds is reduced by intimately mixing with the powder a liquid aliphatic alcohol of 7 or more carbon atoms per molecule in such an amount that the powder remains free flowing. The use of 0.1-2 per cent of alcohol by weight is mentioned, generally 1 per cent is satisfactory. The alcohol may be mixed by tumbling with the powder or added in a volatile solvent, e.g. ether or carbon tetrachloride. In an example, silica powder is mixed with oleyl alcohol.ALSO:The tendency of powders e.g. cements to form dust clouds is reduced by intimately mixing with the powder a liquid aliphatic alcohol of 7 or more carbon atoms per molecule in such an amount that the powder remains free flowing. The use of 0.1 to 2 per cent of alcohol by weight is mentioned, generally 1 per cent is satisfactory. The alcohol may be mixed by tumbling with the powder or added in a volatile solvent e.g. ether or carbon tetrachloride. Oleyl alcohol is specified. In an example 2 Portland cement is mixed with lauryl alcohol.
GB1986349A 1949-07-28 1949-07-28 Improvements in and relating to the treatment of powders Expired GB683065A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1986349A GB683065A (en) 1949-07-28 1949-07-28 Improvements in and relating to the treatment of powders

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1986349A GB683065A (en) 1949-07-28 1949-07-28 Improvements in and relating to the treatment of powders

Publications (1)

Publication Number Publication Date
GB683065A true GB683065A (en) 1952-11-19

Family

ID=10136449

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1986349A Expired GB683065A (en) 1949-07-28 1949-07-28 Improvements in and relating to the treatment of powders

Country Status (1)

Country Link
GB (1) GB683065A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4344766A (en) * 1980-05-10 1982-08-17 Bayer Aktiengesellschaft Process for the manufacture of preparations with a low dust content

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4344766A (en) * 1980-05-10 1982-08-17 Bayer Aktiengesellschaft Process for the manufacture of preparations with a low dust content

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