Method for the manufacture of a lead chromate-containing pigment

Details Method for the manufacture of a lead chromate-containing pigment Method for the manufacture of a lead chromate-containing pigment

1976-08-24

1977-09-06

Douglas, Winston A.

Compositions: coating or plastic

Coating or plastic compositions

Carbohydrate or derivative containing

106302, 106303, 106308B, C09C 120

Patent

active

040465888

ABSTRACT:
A process for the production of lead sulfochromate or lead chromate-sulfate-molybdate type pigments having a low content of acid soluble lead, good color and tinting properties and excellent resistance to industrial environments is described. The process comprises forming the desired lead chromate-containing precipitate in acidic aqueous medium containing chloride ions and a specified excess of lead ions in the absence of a pH buffering agent, coating the precipitate with a silicon and antimony compound, adjusting the pH of the medium to below 7 and recovering the coated precipitate as a pigment.

REFERENCES:
patent: 3434857 (1969-03-01), Seelig
patent: 3639133 (1972-02-01), Linton
patent: 3682672 (1972-08-01), Mau et al.
patent: 3798045 (1974-03-01), Jackson
patent: 3871894 (1975-03-01), Kubo et al.

Affiliated with

Also associated with

Rating

Method for the manufacture of a lead chromate-containing pigment does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for the manufacture of a lead chromate-containing pigment, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for the manufacture of a lead chromate-containing pigment will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2160958