Paper making and fiber liberation – Processes of chemical liberation – recovery or purification... – Treatment with particular chemical
Patent
1975-04-18
1976-06-01
Bashore, S. Leon
Paper making and fiber liberation
Processes of chemical liberation, recovery or purification...
Treatment with particular chemical
8110, 162 80, 162 83, 252105, 252188, 423515, D21C 910
Patent
active
039606490
ABSTRACT:
An aqueous composition for bleaching wood pulp containing sodium hydrosulfite, and at least 2 weight percent hexamethylenetetramine based upon the weight of sodium hydrosulfite, wherein the solution has a pH between about 4 and about 11. The hexamethylenetetramine prevents hydrogen sulfide formation during bleaching of the wood pulp.
REFERENCES:
patent: 2067928 (1937-01-01), Kern
patent: 2071304 (1937-02-01), Hirschkind
patent: 2525770 (1950-10-01), Cook et al.
patent: 2707145 (1955-04-01), Sparrow et al.
patent: 3653804 (1972-04-01), Janson et al.
patent: 3666409 (1972-05-01), Yoshikawa et al.
patent: 3923960 (1975-12-01), Leigh
Bashore S. Leon
Cook Paul J.
Corbin Arthur L.
Ventron Corporation
LandOfFree
Wood pulp bleaching composition containing sodium hydrosulfite a does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Wood pulp bleaching composition containing sodium hydrosulfite a, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Wood pulp bleaching composition containing sodium hydrosulfite a will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2401564