04400237 is referenced by 22 patents and cites 4 patents.

Cellulose is bleached by means of an organic peracid in the acid region and subsequently by means of peroxide in the alkaline region. As peracid there is employed an acid which is produced from the corresponding carboxylic acid by reaction with hydrogen peroxide in the presence of a mineral acid. The peroxide bleaching step which follows the peracid bleaching step is carried out after there is added the necessary amount of aqueous alkali solution for carrying out the peroxide bleaching step of the pulp without intermediate washing of the cellulose. A further addition of peroxide is not carried out.

Title
Process for bleaching cellulose with organic peracid
Application Number
6/232217
Publication Number
4400237
Application Date
February 6, 1981
Publication Date
August 23, 1983
Inventor
Hans U Suss
Rodenbach
DE
Wilhelm Berndt
Frankfurt
DE
Horst Kruger
Darmstadt
DE
Agent
Cushman Darby & Cushman
Assignee
Degussa Aktiengesellschaft
DE
IPC
D21C 9/16
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