FR2037594A5 - Purification of phthal ocyanine pigments - Google Patents

Purification of phthal ocyanine pigments

Info

Publication number
FR2037594A5
FR2037594A5 FR7007709A FR7007709A FR2037594A5 FR 2037594 A5 FR2037594 A5 FR 2037594A5 FR 7007709 A FR7007709 A FR 7007709A FR 7007709 A FR7007709 A FR 7007709A FR 2037594 A5 FR2037594 A5 FR 2037594A5
Authority
FR
France
Prior art keywords
sulphate
pigments
phthalocyanine
acid
purification
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
FR7007709A
Other languages
French (fr)
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.)
ORGANICKYCH SYNTEZ
Original Assignee
ORGANICKYCH SYNTEZ
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 ORGANICKYCH SYNTEZ filed Critical ORGANICKYCH SYNTEZ
Application granted granted Critical
Publication of FR2037594A5 publication Critical patent/FR2037594A5/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
    • C09B67/0017—Influencing the physical properties by treatment with an acid, H2SO4
    • C09B67/0019—Influencing the physical properties by treatment with an acid, H2SO4 of phthalocyanines

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Nitrogen Condensed Heterocyclic Rings (AREA)

Abstract

Phthalocyanine pigments may be purified and converted to give pure colours by reaction of the crude materials with sulphate ions. A maximum of 10 moles sulphate ions per mole of phthalocyanine is used. Reaction is carried out by milling the phthalocyanine powder with the sulphate. The sulphate ion may be added as sulphuric acid, chlorosulphuric acid and mixture of these acids with non-oxidising acids. Less sulphuric acid is required than with earlier methods reducing effluent problems and the removal of excess acid.
FR7007709A 1969-03-04 1970-03-04 Purification of phthal ocyanine pigments Expired FR2037594A5 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CS154469 1969-03-04

Publications (1)

Publication Number Publication Date
FR2037594A5 true FR2037594A5 (en) 1970-12-31

Family

ID=5350063

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7007709A Expired FR2037594A5 (en) 1969-03-04 1970-03-04 Purification of phthal ocyanine pigments

Country Status (3)

Country Link
CH (1) CH535278A (en)
DE (1) DE2009753A1 (en)
FR (1) FR2037594A5 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2442875A1 (en) * 1978-11-30 1980-06-27 Basf Ag PROCESS FOR THE PREPARATION OF HIGHLY DISPERSABLE AND HIGHLY COLORING PIGMENTARY FORMS OF PHTHALOCYANIN AND INSOLUBLE POLYCYCLIC COMPOUNDS
FR2449709A1 (en) * 1978-11-30 1980-09-19 Basf Ag PROCESS FOR PREPARING A DISPERSABLE AND HIGH-POWERED PIGMENT FORM OF COPPER PHTHALOCYANIN

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2442875A1 (en) * 1978-11-30 1980-06-27 Basf Ag PROCESS FOR THE PREPARATION OF HIGHLY DISPERSABLE AND HIGHLY COLORING PIGMENTARY FORMS OF PHTHALOCYANIN AND INSOLUBLE POLYCYCLIC COMPOUNDS
FR2449709A1 (en) * 1978-11-30 1980-09-19 Basf Ag PROCESS FOR PREPARING A DISPERSABLE AND HIGH-POWERED PIGMENT FORM OF COPPER PHTHALOCYANIN

Also Published As

Publication number Publication date
CH535278A (en) 1973-03-31
DE2009753A1 (en) 1970-09-10

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Legal Events

Date Code Title Description
ST Notification of lapse