Method of producing colored precipitated calcium carbonate

Details Method of producing colored precipitated calcium carbonate Method of producing colored precipitated calcium carbonate

1991-01-07

1992-06-09

Niebling, John

Chemistry of inorganic compounds

Carbon or compound thereof

Oxygen containing

106465, 423165, C01F 1118

Patent

active

051205211

ABSTRACT:
A colored precipitated calcium carbonate having a strong color fastness in water is produced by preparing an aqueous slurry containing calcium hydroxide and a water-soluble dye, for example, a direct dye, introducing a carbon dioxide-containing gas into the aqueous slurry, and collecting the resultant colored precipitated calcium carbonate from the aqueous slurry at a pH of 8.2 or more thereof.

REFERENCES:
patent: 3347625 (1967-10-01), Taylor
patent: 4018877 (1977-04-01), Woode
patent: 4559214 (1985-12-01), Howard et al.
patent: 4661164 (1987-04-01), Severinghaus

Affiliated with

Also associated with

Rating

Method of producing colored precipitated calcium carbonate 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 of producing colored precipitated calcium carbonate, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of producing colored precipitated calcium carbonate will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1803269