Process for deinking waste paper

Details Process for deinking waste paper Process for deinking waste paper

D - Textiles, Paper

21

B

9/1

D21B 1/32 (2006.01) D21C 5/02 (2006.01)

Patent

CA 1175204

ABSTRACT OF THE DISCLOSURE The present invention provides a process fox deinking waste paper in which the waste paper is subjected to silicate free flotation deinking in the presence of at least one of sodium hydroxide, sodium peroxide and hydrogen peroxide and fatty acids and dispersing agents, in which various phosphonic acids are added to the paper pulp. Furthermore, amino car- boxylic acids, hydroxy carboxylic acids or polycarboxylic acids and Mg sulphate may be additionally added. The process avoids the problems associated with the use of sodium silicate as peroxide stabilizer.

404827

Affiliated with

Also associated with

Rating

Process for deinking waste paper does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for deinking waste paper, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for deinking waste paper will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1286164