Removal of manganese from pulp using a chelating agent and magne

Details Removal of manganese from pulp using a chelating agent and magne Removal of manganese from pulp using a chelating agent and magne

1991-11-25

1993-04-27

Jones, W. Gary

Paper making and fiber liberation

Processes of chemical liberation, recovery or purification...

Treatment with particular chemical

162 78, 162 82, D21C 304

Patent

active

052059073

ABSTRACT:
The removal of manganese from pulp is enhanced by supplementing the treatment with a chelating agent by the addition of at least 500 ppm of magnesium ions prior to thickening of the pulp thereby to reduce the manganese content of the thickened pulp significantly more than the content would be reduced by the treatment with the chelating agent without the magnesium ions.

REFERENCES:
patent: 3860391 (1975-01-01), Kling et al.
patent: 4160693 (1979-07-01), Lindahl et al.
patent: 4614646 (1986-09-01), Christiansen
patent: 4731161 (1988-03-01), Ehrhardt
patent: 4732650 (1988-03-01), Michalowski et al.
patent: 4798652 (1989-01-01), Joyce et al.
patent: 4849053 (1989-07-01), Gentile, Jr. et al.
patent: 4915785 (1990-04-01), Siminoski et al.
patent: 4938842 (1990-07-01), Whiting et al.
Factors Affecting Hydrogen Peroxide Stability in the Brightening of Mechanical and Chemi-Mechanical Pulps. Part III: Hydrogen Peroxide Stability in the Presence of Magnesium and Combinations of Stabilizers, Colodette, J. L.; Rothenberg, S.; Dence, C. W. from The Journal of Pulp and Paper Science: vol. 15, No. 2, Mar. 1989.

Affiliated with

Also associated with

Rating

Removal of manganese from pulp using a chelating agent and magne does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Removal of manganese from pulp using a chelating agent and magne, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Removal of manganese from pulp using a chelating agent and magne will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2324515