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:
Aug. 28, 1984
Filed:
Jan. 03, 1984
Applicant:
Inventors:
Kang Yang, Ponca City, OK (US);
James D Reedy, Ponca City, OK (US);
Assignee:
Conoco Inc., Ponca City, OK (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01J / ;
U.S. Cl.
CPC ...
502 83 ; 208260 ; 210690 ; 210917 ; 585823 ;
Abstract
An adsorbent is provided for removing color precursors from detergent range alkyl benzene prior to sulfonation. The adsorbent provided is a bauxite clay having at least one material selected from the group consisting of ferric oxide, titanium dioxide, and zirconium oxide and which contain from about 0.1 to about 20 percent by weight of sulfuric acid, said bauxite clay then being calcined at a temperature and time sufficient to activate the adsorbent prior to use.