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:
Jan. 19, 1988
Filed:
Mar. 04, 1985
Applicant:
Inventors:
Wolfgang Friemel, Heppenheim, DE;
Reiner Ehret, Weinheim, DE;
Assignee:
Dr. Werner Freyberg Chemische Febrik Delitia Naschf., Laudenbach, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A01N / ; A01N / ; A01N / ;
U.S. Cl.
CPC ...
424 40 ; 424128 ; 424145 ;
Abstract
The likelihood of auto-ignition occurring while hydrolyzing particulate aluminum phosphide with H.sub.2 O to produce phosphine is reduced by conducting the hydrolysis of the aluminum phosphide in the presence of both a source of ammonia or ammonium ions and zinc or zinc compound, the latter reducing the temperature rise associated with the hydrolysis.