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:
Jan. 17, 1984
Filed:
Nov. 23, 1981
Applicant:
Inventors:
Shrikishna G Sharangpani, Holland, MI (US);
Floyd G Spence, Holland, MI (US);
Assignee:
BASF Wyandotte Corporation, Wyandotte, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
210634 ;
Abstract
This invention relates to a process for the separation of a nitrated substance from a spent nitrating acid wherein said nitrated substance contains polar groups selected from the group consisting of --SO.sub.3 H, --OH, --SH --CO.sub.2 H, --OSO.sub.3 H, and --OP(OH).sub.2 and their salts. This is achieved by: