DE2259975A1 - Verfahren zur abtrennung von wasserloeslichen feststoffen aus einer waessrigen loesung von wasserloeslichen verunreinigungen - Google Patents

Verfahren zur abtrennung von wasserloeslichen feststoffen aus einer waessrigen loesung von wasserloeslichen verunreinigungen

Info

Publication number
DE2259975A1
DE2259975A1 DE19722259975 DE2259975A DE2259975A1 DE 2259975 A1 DE2259975 A1 DE 2259975A1 DE 19722259975 DE19722259975 DE 19722259975 DE 2259975 A DE2259975 A DE 2259975A DE 2259975 A1 DE2259975 A1 DE 2259975A1
Authority
DE
Germany
Prior art keywords
water
soluble
mixture
solvent
aqueous solution
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.)
Pending
Application number
DE19722259975
Other languages
German (de)
English (en)
Inventor
Anthony Kenneth Dunn
David Hugh Spence
Bryan Stockton
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
Publication of DE2259975A1 publication Critical patent/DE2259975A1/de
Pending 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D11/00—Solvent extraction
    • B01D11/02—Solvent extraction of solids
    • B01D11/0288—Applications, solvents
    • 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
    • C09B67/0003—Drying, e.g. sprax drying; Sublimation of the solvent

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Coloring Foods And Improving Nutritive Qualities (AREA)
DE19722259975 1971-12-07 1972-12-07 Verfahren zur abtrennung von wasserloeslichen feststoffen aus einer waessrigen loesung von wasserloeslichen verunreinigungen Pending DE2259975A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5674371A GB1399100A (en) 1971-12-07 1971-12-07 Isolation and purification of water-soluble dyes

Publications (1)

Publication Number Publication Date
DE2259975A1 true DE2259975A1 (de) 1973-06-20

Family

ID=10477422

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19722259975 Pending DE2259975A1 (de) 1971-12-07 1972-12-07 Verfahren zur abtrennung von wasserloeslichen feststoffen aus einer waessrigen loesung von wasserloeslichen verunreinigungen

Country Status (7)

Country Link
JP (1) JPS4864001A (enExample)
AU (1) AU469802B2 (enExample)
DE (1) DE2259975A1 (enExample)
FR (1) FR2162506B1 (enExample)
GB (1) GB1399100A (enExample)
IT (1) IT971801B (enExample)
NL (1) NL7216607A (enExample)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9912482D0 (en) * 1999-06-01 1999-07-28 Clariant Int Ltd Process for preparing purified dyestuffs

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB640915A (en) * 1946-08-07 1950-08-02 Chadeloid Corp Improvements in and relating to the purifying of organic dyestuffs

Also Published As

Publication number Publication date
GB1399100A (en) 1975-06-25
AU469802B2 (en) 1976-02-26
FR2162506A1 (enExample) 1973-07-20
IT971801B (it) 1974-05-10
NL7216607A (enExample) 1973-06-12
JPS4864001A (enExample) 1973-09-05
AU4974972A (en) 1974-06-27
FR2162506B1 (enExample) 1977-01-14

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