Bleaching procedure using chlorine dioxide and chlorine solution

Paper making and fiber liberation – Processes of chemical liberation – recovery or purification... – Treatment with particular chemical

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

423478, 423506, C01B 1102, D21C 914

Patent

active

044090668

ABSTRACT:
The adverse effects of dissolved organic material in the aqueous phase of pulp suspensions during bleaching using mixtures of chlorine dioxide and chlorine are overcome by applying the chlorine dioxide and chlorine serially to the pulp in two steps without an intermediate wash. An aqueous solution of chlorine dioxide and chlorine in which the chlorine constitutes from about 6 to about 10% of the total available chlorine of the solution is used in the first step and chlorine is used in the second step. The aqueous solutions are formed by dissolving in water chlorine dioxide and chlorine formed in a chlorine dioxide generator.

REFERENCES:
patent: Re28884 (1976-06-01), Jack et al.
patent: 3864456 (1975-02-01), Winfield
patent: 4086329 (1978-04-01), Cowley et al.
patent: 4299653 (1981-11-01), Reeve
patent: 4325783 (1982-04-01), Reeve et al.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Bleaching procedure using chlorine dioxide and chlorine solution does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Bleaching procedure using chlorine dioxide and chlorine solution, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Bleaching procedure using chlorine dioxide and chlorine solution will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1273858

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.