Separation of polymetallic sulphides by froth flotation

Details Separation of polymetallic sulphides by froth flotation Separation of polymetallic sulphides by froth flotation

1989-08-29

1990-08-28

Lacey, David L.

Compositions

Physical separation agents

Froth-flotation or differential adherence

209167, 527400, 530500, 530505, 536 41, 536114, 536103, B03D 1016, C07G 100, C08B 3700, C08B 3018

Patent

active

049523295

ABSTRACT:
A new depressant composition is provided for the enhanced separation into separate value metal concentrates of copper, nickel, zinc, lead present in polymetallic and massive sulphide ores.
The depressant is added in an aqueous solution prepared by dissolving first a mixture of quebrachio and dextrin, or quebracho and guar gum. To the solution of modified quebracho a water soluble salt of lignin sulphonate is added. The aqueous polymer of modified quebracho lignin sulphonate is further mixed with one or more of the following inorganic reagents: water soluble cyanide, metal sulphates and water soluble sulphites. The resulting depressant is added together with conventional flotation reagents in conventional mineral separation stages as required.

REFERENCES:
patent: 1622127 (1927-03-01), Atkinson
patent: 1741028 (1929-12-01), Koenig
patent: 2019306 (1935-10-01), Handy
patent: 2070076 (1937-02-01), Brown
patent: 2471384 (1949-05-01), Booth
patent: 2919802 (1960-01-01), Drake
patent: 3912623 (1975-10-01), Buza
patent: 4246096 (1981-01-01), Bulatovic
patent: 4514292 (1985-04-01), Burdick
patent: 4576708 (1986-03-01), Oko
patent: 4702824 (1987-10-01), Abadi
patent: 4880529 (1989-11-01), Bulatovic et al.

Affiliated with

Also associated with

Rating

Separation of polymetallic sulphides by froth flotation does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Separation of polymetallic sulphides by froth flotation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Separation of polymetallic sulphides by froth flotation will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1588306