FIELD: process engineering.
SUBSTANCE: invention relates to collector for separation of carbonates by flotation and may be used for flotation of phosphates rocks. Proposed collector comprises, at least, one phosphorous acid ether according to formula
, where R1 represents H, CH3 or C2H5, - R2 represents the group selected from 2-ethyl butanol, 2-methyl pentanol, 2-ethyl hexanol, 2-methyl heptanol or mixes thereof, - R3 represents H or suitable cation selected from alkali metal, alkaline earth metala, ammonium, alkyl ammonium, alkanol ammonium or glucammonium, - k is the number 1 to 2, and - n is the number from 0 to 4. Proposed method comprises mixing ground phosphate ore with water to produce suspension, adding air into said suspension in the presence of collector, and separating formed foam together with carbonates contained therein, while phosphates remain as flotation tails.
EFFECT: higher efficiency.
18 cl, 2 tbl, 3 ex
| Title | Year | Author | Number |
|---|---|---|---|
| FOAM FLOTATION METHOD | 2019 |
|
RU2800987C2 |
| USE OF ASPARAGINIC ACID DERIVATIVE AS COLLECTOR IN FOAM FLOATATION PROCESSES | 2004 |
|
RU2349390C2 |
| USE OF AN EMULSIFIER IN A FLOTATION AGENT COMPOSITION | 2017 |
|
RU2702044C2 |
| USE OF AN EMULSIFIER IN A FLOATATION AGENT COMPOSITION | 2017 |
|
RU2687665C1 |
| PROCESS FOR RECOVERY OF PRECIOUS MINERALS | 0 |
|
SU1837988A3 |
| REVERSE FLOTATION OF IRON ORE BY COLLECTORS IN WATER NANOEMULSION | 2008 |
|
RU2469794C2 |
| METHOD OF SELECTIVE FLOATATION OF PHOSPHORUS MINERALS | 1992 |
|
RU2087205C1 |
| PREVENTION OF FOAM CONCENTRATION IN THE METHOD OF REVERSE FLOTATION FOR CALCIUM CARBONATE CLEANING | 2013 |
|
RU2625409C2 |
| WAY OF FLOTATION OF PHOSPHOR MINERALS FROM CARBONATE SILICATE ORES | 0 |
|
SU1795911A3 |
| METHOD OF TREATING SILICEOUS NON-SULPHIDE ORES AND CORRESPONDING COMPOSITION OF COLLECTORS | 2018 |
|
RU2741494C1 |
