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:
Jul. 13, 1982
Filed:
Feb. 25, 1981
Applicant:
Inventors:
Frank Pitts, Magalas, FR;
Jack A Tiethof, South Plainfield, NJ (US);
Robert A Burns, Long Valley, NJ (US);
Assignee:
Engelhard Minerals & Chemicals Corporation, Menlo Park, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01J / ;
U.S. Cl.
CPC ...
252449 ; 501147 ;
Abstract
A novel sorptive clay product is formed by treating attapulgite clay with sodium silicate and heating to expel moisture such that the product contains about 7-20% total volatile matter. Acid may also be added such that the pH of aqueous slurry is in the range 5 to 10. This sorptive clay product exhibits water and oil absorption and resistance to wet breakdown equivalent to higher-temperature activated attapulgite products.