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:
May. 22, 1984
Filed:
Jul. 14, 1982
Applicant:
Inventors:
Hans-Joachim Morawietz, Kelkheim, DE;
Erich Hoffman, Kriftel, DE;
Johann Hanauer, Kriftel, DE;
Kurt Bauer, Kelsterbach, DE;
Assignee:
Hoechst Aktiengesellschaft, , DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07F / ; C22B / ;
U.S. Cl.
CPC ...
2605 / ; 75-2 ; 26050112 ;
Abstract
3-Alkoxypropylenimino-bis-(methylene phosphonic acids) of the formula ##STR1## wherein R is straight-chain or branched alkyl or alkenyl each having from 2 to 20, preferably 2 to 10, carbon atoms, aryl, preferably phenyl or aralkyl, preferably benzyl, and X is hydrogen, an alkali metal, alkaline earth metal, ammonium, alkylammonium or polyalkylenepolyammonium ion, preferably a sodium, potassium or ammonium ion, a process for their manufacture and their use as collector in the flotation of non-sulfidic ores.