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:
Jun. 27, 1978
Filed:
Mar. 14, 1977
Applicant:
Inventors:
Hermann Niermann, Erftstadt Bliesheim, DT;
Franz Mainzer, Hurth, DT;
Assignee:
Hoechst Aktiengesellschaft, Frankfurt am Main, DT;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C01B / ;
U.S. Cl.
CPC ...
423303 ; 23285 ;
Abstract
Production of phosphorus pentasulfide from phosphorus and sulfur at elevated temperature in a reactor of which the walls are in heat exchange with a substance kept at the temperature necessary for cooling or heating reaction mixture. The heat exchange in the bottom portion of the reactor is more particularly effected with the use of a system functioning separately and independently from the heat exchange system surrounding the lateral walls of the reactor.