GB686234A - Process for dispersing solids in liquids - Google Patents

Process for dispersing solids in liquids

Info

Publication number
GB686234A
GB686234A GB6709/49A GB670949A GB686234A GB 686234 A GB686234 A GB 686234A GB 6709/49 A GB6709/49 A GB 6709/49A GB 670949 A GB670949 A GB 670949A GB 686234 A GB686234 A GB 686234A
Authority
GB
United Kingdom
Prior art keywords
pigment
sand
film
jacket
dispersed
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
GB6709/49A
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.)
EIDP Inc
Original Assignee
EI Du Pont de Nemours and Co
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 EI Du Pont de Nemours and Co filed Critical EI Du Pont de Nemours and Co
Publication of GB686234A publication Critical patent/GB686234A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • C09B67/0001—Post-treatment of organic pigments or dyes
    • C09B67/0002—Grinding; Milling with solid grinding or milling assistants
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/50—Mixing liquids with solids
    • B01F23/51—Methods thereof
    • B01F23/511—Methods thereof characterised by the composition of the liquids or solids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/80—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/80—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis
    • B01F27/93—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis with rotary discs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F33/00—Other mixers; Mixing plants; Combinations of mixers
    • B01F33/25—Mixers with loose mixing elements, e.g. loose balls in a receptacle
    • B01F33/251—Mixers with loose mixing elements, e.g. loose balls in a receptacle using balls as loose mixing element
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
    • B02C17/16—Mills in which a fixed container houses stirring means tumbling the charge

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Dispersion Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)

Abstract

A pigment is dispersed in a film-forming-material by agitating the pigment and the film-forming material with sand, glass or hard plastic beads of 20-40 United States mesh size and then separating the sand from the dispersed pigment. Specified film-forming compositions produced are (1) polyvinyl chloride powder, blown castor oil, dibutoxy ethyl phthalate, naphtha, soya lecithin, orthophenyl phenol, ethyl alcohol, stabilizer, cadmium sulphide pigment, and barytes pigment; (2) chlorosulphonated polyethylene (prepared as in Specification 542,414), toluene, ethyl alcohol and barytes; and (3) nitrocellulose, methyl isopropyl carbinol acetate, methyl isobutyl ketone, methyl isobutyl carbinol, isopropyl alcohol, methylethyl ketone, toluene, petroleum naphtha, xylene, blown castor oil, methyl isobutyl carbinol acetate, milori blue and zinc oxide.ALSO:<PICT:0686234/III/1> A pigment is dispersed in a film-forming material by agitating the pigment and the film-forming material with a sand of 20 to 40 United States mesh size and then separating the sand from the dispersed pigment. The term "sand" includes glass and plastic beads. The sand may be present in an amount of 30 to 65 per cent of the total volume which the pigment and film-forming material may be continuously removed from the sand and replaced by new p material. This later process may be carried out by introducing the materials into vessel 1 where they are agitated by impellers 3 to produce a smooth dispersion which passes through screen 5 leaving behind the sand. This dispersion fills jacket 6 and flows from opening 8 at a rate controlled by valve 10. Upper jacket 11 is for a temperature controlling fluid. Modifications of the apparatus include a closed vessel 1, fitting the impellers with vertical bars or baffles and extending the jacket 11 to cover the entire unit including the jacket 6. Specification 542,414 [Group IV], is referred to.
GB6709/49A 1948-08-13 1949-03-11 Process for dispersing solids in liquids Expired GB686234A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US686234XA 1948-08-13 1948-08-13

Publications (1)

Publication Number Publication Date
GB686234A true GB686234A (en) 1953-01-21

Family

ID=22083708

Family Applications (1)

Application Number Title Priority Date Filing Date
GB6709/49A Expired GB686234A (en) 1948-08-13 1949-03-11 Process for dispersing solids in liquids

Country Status (1)

Country Link
GB (1) GB686234A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0759322A1 (en) * 1995-08-14 1997-02-26 Ing. A. Maurer Sa Method and installation for dissolving solid materials of a bulbous form in a liquid

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0759322A1 (en) * 1995-08-14 1997-02-26 Ing. A. Maurer Sa Method and installation for dissolving solid materials of a bulbous form in a liquid

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