Alkali metal hydrosulfite solutions

Details Alkali metal hydrosulfite solutions Alkali metal hydrosulfite solutions

1989-07-18

1991-04-09

Straub, Gary P.

Chemistry of inorganic compounds

Sulfur or compound thereof

Oxygen containing

25218822, C01B 1766, B01D 1900, C09K 300

Patent

active

050063278

ABSTRACT:
An aqueous solution comprising alkali metal hydrosulfite and hydroxide ions in an amount to provide a residual alkalinity of at least 0.25 moles per liter results in the decomposition of thiosulfate ions present and inhibits their formation during storage. These solutions can be used, for example, in the bleaching of mechanical pulp.

REFERENCES:
patent: 2226576 (1940-12-01), Park et al.
patent: 3298796 (1967-01-01), Van Damme-van Weele et al.
patent: 3773679 (1973-11-01), Kise et al.
patent: 3804944 (1974-04-01), Kise et al.
patent: 4042675 (1977-08-01), Yamamoto et al.
patent: 4100098 (1978-06-01), Magan
patent: 4102803 (1978-07-01), Fujishima et al.
patent: 4126716 (1978-11-01), Yamamoto et al.
patent: 4283303 (1981-08-01), Ellis
patent: 4590058 (1986-05-01), Cawlfield
patent: 4676961 (1987-01-01), Appl et al.
patent: 4729886 (1988-03-01), Little et al.
"Transactions of the Tech. Sect., Pulp and Paper Science 8 (3), 60-64 (1982)".

Affiliated with

Also associated with

Rating

Alkali metal hydrosulfite solutions does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Alkali metal hydrosulfite solutions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Alkali metal hydrosulfite solutions will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2033237