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.

Date of Patent:
Feb. 16, 1988

Filed:

Jan. 23, 1987
Applicant:
Inventor:

William J Tuszynski, Quakertown, PA (US);

Assignee:

Other;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01J / ; B01J / ; C09K / ;
U.S. Cl.
CPC ...
502220 ; 252182 ;
Abstract

A presulfiding agent which is a blend of an alkyl sulfide of the formula R.sub.1 S.sub.x R.sub.2 where R.sub.1 and R.sub.2 are alkyl groups having from 1 to 12 carbon atoms and x is 1 or 2 and an alkyl polysulfide of the formula R.sub.3 S.sub.y R.sub.4 wherein R.sub.3 and R.sub.4 are alkyl groups having from 1 to 20 carbon atoms and y is 2 to 8 provided that the total carbon atoms in R.sub.3 and R.sub.4 do not exceed 30 and y is greater than x, is disclosed herein along with a process employing said agent for sulfiding an oxidic hydrotreating catalyst to form a sulfided hydrotreating agent and a process of hydrotreating a petroleum fraction with such sulfided hydrotreating catalyst.


Find Patent Forward Citations

Tuszynski, William. (1988). Presulfiding composition for preparing hydrotreating catalyst activity (U.S. Patent No. 4725571). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4725571

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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