Evonik Degussa Gmbh

Evonik Goldschmidt Corporation

Magotteaux International S.a.

Ingo Hamann

Gerhard Arnold

Georg Schick

Alan Hitchiner

Harald Jakob

Todd L Kurth

Hans-Jürgen Köhle

Dennis Parrish

Axel Euler

Andras Nagy

Terry Brown

Christopher Greet

Matthias Schöppner

Saji John Meledathu

Delbert G Young

Saiid Mohammed

The present invention is directed to methods that can be used in the enrichment of metal sulfide ores in desired minerals in cases where the ores have sulfide-containing gangues. The method involves adding an oxidant to slurries prepared from the ores during, or immediately prior to froth flotation.

Enrichment of metal sulfide ores by oxidant assisted froth flotation

In a method for recovering a copper sulfide concentrate by froth flotation from an ore containing an iron sulfide, wet grinding of the ore with grinding media made of high chromium cast iron alloy having a chromium content of from 10 to 35% by weight is combined with an addition of hydrogen peroxide to the conditioned mineral pulp before or during flotation in order to improve concentrate grade and recovery of copper sulfides.

Method for recovering a copper sulfide concentrate from an ore containing an iron sulfide

A fabric softener active composition, comprising from 65 to 95% by weight of a bis-(2-hydroxyethyl)-dimethylammonium chloride fatty acid ester having a molar ratio of fatty acid moieties to amine moieties of from 1.80 to 1.96, an average chain length of the fatty acid moieties of from 16 to 18 carbon atoms and an iodine value of from 0 to 50, from 2 to 8% by weight of a fatty acid triglyceride having an average chain length of the fatty acid moieties of from 10 to 14 carbon atoms and an iodine value of from 0 to 15, and from 3 to 12% by weight of an alcohol selected from ethanol, 1-propanol and 2-propanol has low melt viscosity, high stability towards dealkylation in the molten state and low flammability.

Fabric softener active composition

The present invention is directed to rinse aid compositions with improved biodegradability that may be used in automated carwash operations to promote drying and improve the appearance of vehicles.

Rinse aid compositions with improved characteristics

Growing community of inventors

Chester, NJ, United States of America

Ingo Hamann