The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 08, 1983
Filed:
Jan. 08, 1982
Applicant:
Inventor:
Dominic S Rende, Woodridge, IL (US);
Assignee:
Nalco Chemical, Oak Brook, IL (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
D21C / ; D21C / ;
U.S. Cl.
CPC ...
162 36 ; 162 39 ; 162 79 ; 162 83 ;
Abstract
A process for sulfite pulping of wood of the type which comprises sulfite pulping wood chips in the presence of a catalytic amount of a water-soluble molybdenum containing compound, the improvement which comprises using as the source of water-soluble molybdenum containing compound molybdenum sulfide which is added to the sulfite pulping process at a point whereby it is oxidized to an oxide of molybdenum prior to being added to the chip digester.