PROCESS FOR THE EXTRACTION OF MINERALS FROM NON-SULPHIDIC ORES BY FLOTATION

Title:

PROCESS FOR THE EXTRACTION OF MINERALS FROM NON-SULPHIDIC ORES BY FLOTATION

Document Type and Number:

WIPO Patent Application WO/1993/011100

Kind Code:

A1

Abstract:

Proposed is a method of concentrating non-sulphidic ores by flotation, using as collectors sulphosuccinates of the formula (Ia) and/or (Ib), in which R?1¿ is a hydroxyalkyl group with 6 to 22 carbon atoms; R?2¿CO is an acyl group with 6 to 22 carbon atoms; n is 0 or a number from 1 to 10; m is a number from 1 to 10 and M is sodium or potassium; optionally in combination with other anionic and/or non-ionic surfactants.

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Inventors:

KOESTER RITA (DE)
SCHRECK BERTHOLD (DE)
KLUSCHANZOFF HARALD (DE)

Application Number:

PCT/EP1992/002664

Publication Date:

June 10, 1993

Filing Date:

November 19, 1992

Export Citation:

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Assignee:

HENKEL KGAA (DE)

International Classes:

B03D1/012; C07C309/17; (IPC1-7): B03D1/00; C07C309/17

Foreign References:

DE4010911A1	1990-10-11
US4139481A	1979-02-13
EP0067137A1	1982-12-15
US3447681A	1969-06-03
US4138350A	1979-02-06
EP0270986A2	1988-06-15

Other References:

AUFBEREITUNGSTECHNIK Bd. 26, Nr. 11, 1985, Seiten 632 - 639 W. VON RYBINSKI ET AL. 'Adsorption von Tensidmischungen beim Flotationsvorgang' in der Anmeldung erw{hnt

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