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Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Inventor:
Lachapelle; Raymond C.
Address:
Kirkland, CA
No. of patents:
1
Patents:












Patent Number Title Of Patent Date Issued
5139613 Process for preparing a paper pulp using carbon dioxide as an acidifying agent for a bleached pu August 18, 1992
A process for souring chemical or mechanical cellulosic pulp using carbon dioxide to obtain proper acidification of the pulp slurry. The souring is performed after a single or a multistage bleaching sequence ending with sodium hypochlorite, calcium hypochlorite or hydrogen peroxide or th










 
 
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