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. 09, 2016
Filed:
Mar. 28, 2013
Applicant:
Aditya Birla Science and Technology Company Ltd., Mumbai, Maharashtra, IN;
Inventors:
Assignee:
Aditya Birla Science and Technology Company Ltd., Mumbai, IN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09C 1/56 (2006.01); C09C 1/48 (2006.01);
U.S. Cl.
CPC ...
C09C 1/56 (2013.01); C09C 1/48 (2013.01); C01P 2002/88 (2013.01); C01P 2006/80 (2013.01);
Abstract
The present disclosure relates to a process for obtaining carbon black powder with a sulfur content of less than 0.07%. The process includes step of reacting carbon black powder with a sulfur content of 1-2% with an alkali metal or salt thereof, in a fluid media, at a temperature in the range of 100° C. to 350° C. and pressure in the range of 10 to 500 psig. It is found that in accordance with the process of the present disclosure, the sulfur content was reduced substantially from that of about 1.25% to that of 0.05%, resulting in about 96% desulfurization.