CN105537006A - Method for achieving flotation of gold-containing ores through biological agent - Google Patents
Method for achieving flotation of gold-containing ores through biological agent Download PDFInfo
- Publication number
- CN105537006A CN105537006A CN201610071389.8A CN201610071389A CN105537006A CN 105537006 A CN105537006 A CN 105537006A CN 201610071389 A CN201610071389 A CN 201610071389A CN 105537006 A CN105537006 A CN 105537006A
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- Prior art keywords
- gold
- ore
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- flotation
- biologic product
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D1/00—Flotation
- B03D1/02—Froth-flotation processes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D1/00—Flotation
- B03D1/001—Flotation agents
- B03D1/004—Organic compounds
- B03D1/016—Macromolecular compounds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D1/00—Flotation
- B03D1/08—Subsequent treatment of concentrated product
- B03D1/082—Subsequent treatment of concentrated product of the froth product, e.g. washing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D1/00—Flotation
- B03D1/08—Subsequent treatment of concentrated product
- B03D1/087—Subsequent treatment of concentrated product of the sediment, e.g. regrinding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D2203/00—Specified materials treated by the flotation agents; specified applications
- B03D2203/02—Ores
- B03D2203/025—Precious metal ores
Abstract
The invention discloses a method for achieving flotation of gold-containing ores through a biological agent. Flotation is performed through the steps of ore grinding, roughing, concentrating and scavenging. Ore grinding comprises the steps that raw ores are ground until the particle size is smaller than 0.074 mm and the content is larger than 70%, the concentration of ore slurry obtained through ore grinding is regulated to be 33%, stirring is performed for 2-3 minutes, a collecting agent and a foaming agent are sequentially added while stirring is performed, and the collecting agent is prepared from xanthate and the biological agent; the collecting agent is prepared by cooperatively using the xanthate and the biological agent, and therefore the gold flotation recycling rate and the concentrate grade can be effectively increased; the adopted biological agent is green and environmentally friendly and can be naturally degraded, therefore, the wastewater treatment link is omitted, and the production cost is reduced.
Description
Technical field
The invention belongs to technical field of beneficiation, be specifically related to a kind of floatation process of biological flotation gold containing ore.
Background technology
Gold is that the mankind find and one of the noble metal studying use the earliest, and the rare preciousness of gold resource, physicochemical properties are unique, enjoy the great fame that other metal is incomparable.Along with the high speed development of contemporary industry, business and financial circles, the demand of gold increases day by day, and supply breach is also increasing, and this exploration to gold, exploitation and processing propose acid test.Easily adopt high-grade ore fewer and feweri, exploitation low-grade deposit is with regard to the inevitable choice of Cheng Liao bargh.Due to the reduction of gold containing ore head grade, the decline of the mineral processing index such as concentrate grade, flotation recovery rate must be caused, thus the production of gold mining enterprises and smelting cost are increased.Country " 13 " planning has had higher requirement to the environmental protection of gold mine enterprise.Adopt the floating agent of asepsis environment-protecting easy degradation-type to carry out flotation, improve further flotation recovery rate and production high-grade Gold Concentrate under Normal Pressure be current gold mine adopt floatation gold recovering face major issue urgently to be resolved hurrily.
Summary of the invention
In order to overcome the above-mentioned technical problem that prior art field exists, the object of the present invention is to provide a kind of employing
The method of biologic product flotation gold containing ore, select golden biologic product asepsis environment-protecting easily to degrade, flotation concentrate Gold grade is high.
The method of employing biologic product flotation gold containing ore provided by the invention, comprises the following steps:
One, ore grinding: ore raw ore is milled to granularity and is less than 0.074mm, content is greater than 70%, is adjusted to 33% by the pulp density after ore grinding, stir 2 ~ 3 minutes, and collecting agent and foaming agent is added successively while stirring, described collecting agent is xanthate and biologic product, and described foaming agent is No. two oil;
Two, roughly select: roughly select after described ore pulp is added collecting agent and foaming agent and obtain rougher concentration and rougher tailings in 8 ~ 10 minutes;
Three, selected: step 2 gained rougher concentration is carried out twice selected, primary cleaning obtains selected gold mine and cleaner tailings, selected gold mine is carried out recleaning, obtain Gold Concentrate under Normal Pressure and recleaning mine tailing, cleaner tailings is back to roughly select and again circulates, recleaning mine tailing is back to primary cleaning step and again circulates;
Four, scan: step 2 gained rougher tailings is carried out scanning for twice, once purging selection obtains scavenger concentrate and scans mine tailing, scavenger concentrate is back to roughly select and again circulates, mine tailing will be scanned carry out secondary and scan, obtain secondary scavenger concentrate and mine tailing, secondary scavenger concentrate is back to once purging selection step and again circulates.
The use amount of described xanthate is 60 ~ 120g/t, and the use amount of described biologic product is 30 ~ 60g/t, and described No. two oily use amounts are 30 ~ 60g/t.
The selected time of described primary cleaning is 4 ~ 6 minutes, and the selected time of described recleaning is 4 ~ 6 minutes, and the time of scanning of described once purging selection is 6 ~ 8 minutes, and the time of scanning that described secondary is scanned is 6 ~ 8 minutes.
Described granularity is less than 0.074mm and granularity is less than 200 orders.
Described biologic product refers to the leftover bits and pieces part such as skin, muscle, internal organ by mammality or poultry animal, adopt highly basic or strong acid, after high temperature (50 ~ 120 degree) high pressure (1 ~ 4 atmospheric pressure) process, the biological flotation reagent obtained, main component comprises several amino acids content 8 ~ 12%, multiple unrighted acid 2 ~ 5%, NaOH 8 ~ 12%.
Described No. two oil refer to terpenic oil.
The method of employing biologic product flotation gold containing ore provided by the invention, its beneficial effect be collecting agent adopt xanthate and biologic product with the use of, can effectively improve golden flotation recovery rate and concentrate grade, adopt method flotation provided by the invention, gold floatation concentrate grade can improve 8 ~ 15g/t, and golden flotation recovery rate can improve 3 ~ 10%; The biologic product environmental protection adopted, can natural degradation, decreases wastewater treatment link, reduces production cost, under increasingly paying attention to the environment of Mine ecology environment-friendly and green, have more important meaning in country.By the collecting performance check study to biologic product, biologic product is than better selective to gold mineral of butyl ammonium aerofloat, and particularly to monomer mustard gold or to be greater than the inclined coarse gold collecting ability of 0.074mm stronger, gold recovery is high; And more weak to the collecting ability of shale mineral, better selective, can under the condition that golden flotation recovery rate is identical compared with butyl ammonium aerofloat mixed reagent with employing butyl xanthate, productive rate is lower, can obtain higher Gold Concentrate under Normal Pressure grade.
Accompanying drawing explanation
Fig. 1 is the principle technological process that the present invention adopts biologic product flotation gold containing ore.
Detailed description of the invention
With reference to the accompanying drawings, in conjunction with three embodiments, the method for employing biologic product flotation gold containing ore provided by the invention is described in detail.
Embodiment one
With reference to Fig. 1, the employing biologic product flotation gold containing ore method of the present embodiment, with Zhaoyuan gold containing ore for raw material carries out flotation.This sample ore Gold grade is 2.6g/t, and belong to quartz vein containing golden Semi-oxidized ore, golden disseminated grain size thickness is uneven.Concrete implementation step is as follows: one, choose sample ore 1000g, selected sample ore is milled to granularity be less than 0.074mm and account for 70% of raw ore content, then by the ore pulp after ore grinding, concentration of sizing mixing is 33%, stir after 3 minutes, and add xanthate, biologic product and No. two oil successively while stirring, the addition of described xanthate is 80g/t, the addition of described biologic product is 40g/t, and described No. two oily additions are 30g/t; Two, roughly select: roughly select after described ore pulp is added collecting agent and foaming agent and obtain rougher concentration and rougher tailings in 6 minutes; Three, gained rougher concentration is carried out twice selected, the selected time of primary cleaning is obtain selected gold mine and cleaner tailings in 4 minutes, selected gold mine is carried out recleaning, the recleaning time is 6 minutes, obtain Gold Concentrate under Normal Pressure and recleaning mine tailing, cleaner tailings is back to roughly select and again circulates, recleaning mine tailing is back to primary cleaning step and again circulates; Four, step 2 gained rougher tailings is carried out scanning for twice, the time of scanning of once purging selection is 6 minutes, obtain scavenger concentrate and scan mine tailing, scavenger concentrate is back to roughly select and again circulates, mine tailing will be scanned carry out secondary and scan, the time of scanning is 8 minutes, obtains secondary scavenger concentrate and mine tailing, secondary scavenger concentrate is back to once purging selection step and again circulates.
Above-mentioned steps is passed through step by step, circulation ore dressing, and improve Gold Concentrate under Normal Pressure grade and gold recovery, the Gold Concentrate under Normal Pressure grade of acquisition is 72.97g/t, and the rate of recovery of gold is 95.82%.And adopting existing flotation flowsheet flotation, Floatation Concentrate Grade is 61.41g/t, and flotation recovery rate is 92.54%.
Embodiment two
With reference to Fig. 1, the method for the employing biologic product flotation gold containing ore of the present embodiment, with the gold containing ore in somewhere, Heilungkiang for raw material carries out flotation.This sample ore Gold grade is 2.53g/t, and belong to quartz vein containing golden Semi-oxidized ore, golden disseminated grain size is main mainly with fine fraction.Concrete implementation step is as follows: one, choose sample ore 1000g, selected sample ore being milled to granularity is less than 0.074mm and accounts for raw ore content is 70%, then by the ore pulp after ore grinding, concentration of sizing mixing is 33%, stir 3 minutes, and add xanthate, biologic product and No. two oil successively while stirring, the addition of described xanthate is 60g/t, the addition of described biologic product is 40g/t, and described No. two oily additions are 30g/t; Two, roughly select: roughly select after described ore pulp is added collecting agent and foaming agent and obtain rougher concentration and rougher tailings in 6 minutes; Three, gained rougher concentration is carried out primary cleaning, the selected time is obtain selected gold mine and cleaner tailings in 5 minutes, selected gold mine is carried out recleaning, the recleaning time is 5 minutes, obtain Gold Concentrate under Normal Pressure and recleaning mine tailing, cleaner tailings is back to roughly select and again circulates, recleaning mine tailing is back to primary cleaning step and again circulates; Four, step 2 gained rougher tailings is carried out once purging selection, the time of scanning is 6 minutes, obtain scavenger concentrate and scan mine tailing, scavenger concentrate is back to roughly select and again circulates, mine tailing will be scanned carry out secondary and scan, the time of scanning is 7 minutes, obtains secondary scavenger concentrate and mine tailing, secondary scavenger concentrate is back to once purging selection step and again circulates.
Above-mentioned steps is passed through step by step, circulation ore dressing, and improve Gold Concentrate under Normal Pressure grade and gold recovery, the Gold Concentrate under Normal Pressure grade of acquisition is 34.34g/t, and the rate of recovery of gold is 84.78%.And adopting existing flotation flowsheet flotation, Floatation Concentrate Grade is 26.15g/t, and flotation recovery rate is 81.09%.
Embodiment three
With reference to Fig. 1, the method for the employing biologic product flotation gold containing ore of the present embodiment, with the gold containing ore of Shandong Pingdu for raw material carries out flotation.This sample ore Gold grade is 1.26g/t, and belong to quartz vein containing golden oxidized ore, golden disseminated grain size is based on fine fraction.Concrete implementation step is as follows: one, choose sample ore 1000g, selected sample ore being milled to granularity is less than 0.074mm and accounts for raw ore content is 70%, then by the ore pulp after ore grinding, concentration of sizing mixing is 33%, stir 3 minutes, and add xanthate, biologic product and No. two oil successively while stirring, the addition of described xanthate is 60g/t, the addition of described biologic product is 30g/t, and described No. two oily additions are 30g/t; Two, roughly select: roughly select after described ore pulp is added collecting agent and foaming agent and obtain rougher concentration and rougher tailings in 6 minutes; Three, gained rougher concentration is carried out primary cleaning, the selected time is obtain selected gold mine and cleaner tailings in 6 minutes, selected gold mine is carried out recleaning, the recleaning time is 6 minutes, obtain Gold Concentrate under Normal Pressure and recleaning mine tailing, cleaner tailings is back to roughly select and again circulates, recleaning mine tailing is back to primary cleaning step and again circulates; Four, step 2 gained rougher tailings is carried out once purging selection, the time of scanning is 8 minutes, obtain scavenger concentrate and scan mine tailing, scavenger concentrate is back to roughly select and again circulates, mine tailing will be scanned carry out secondary and scan, the time of scanning is 8 minutes, obtains secondary scavenger concentrate and mine tailing, secondary scavenger concentrate is back to once purging selection step and again circulates.
Above-mentioned steps is passed through step by step, circulation ore dressing, and improve Gold Concentrate under Normal Pressure grade and gold recovery, the Gold Concentrate under Normal Pressure grade of acquisition is 31.67g/t, and the rate of recovery of gold is 90.75%.And adopting existing flotation flowsheet flotation, Floatation Concentrate Grade is 23.23g/t, and flotation recovery rate is 80.03%.
Claims (3)
1. adopt a method for biologic product flotation gold containing ore, it is characterized in that, comprise the following steps:
One, ore grinding: ore raw ore is milled to granularity and is less than 0.074mm, content is greater than 70%, is adjusted to 33% by the pulp density after ore grinding, stir 2 ~ 3 minutes, and collecting agent and foaming agent is added successively while stirring, described collecting agent is xanthate and biologic product, and described foaming agent is No. two oil;
Two, roughly select: roughly select after described ore pulp is added collecting agent and foaming agent and obtain rougher concentration and rougher tailings in 8 ~ 10 minutes;
Three, selected: step 2 gained rougher concentration is carried out twice selected, primary cleaning obtains selected gold mine and cleaner tailings, selected gold mine is carried out recleaning, obtain Gold Concentrate under Normal Pressure and recleaning mine tailing, cleaner tailings is back to roughly select and again circulates, recleaning mine tailing is back to primary cleaning step and again circulates;
Four, scan: step 2 gained rougher tailings is carried out scanning for twice, once purging selection obtains scavenger concentrate and scans mine tailing, scavenger concentrate is back to roughly select and again circulates, mine tailing will be scanned carry out secondary and scan, obtain secondary scavenger concentrate and mine tailing, secondary scavenger concentrate is back to once purging selection step and again circulates.
2. the method for employing biologic product flotation gold containing ore according to claim 1, it is characterized in that: the use amount of described xanthate is 60 ~ 120g/t, the use amount of described biologic product is 30 ~ 60g/t, and described No. two oily use amounts are 30 ~ 60g/t.
3. the method for employing biologic product flotation gold containing ore according to claim 1, it is characterized in that: the selected time of described primary cleaning is 4 ~ 6 minutes, the selected time of described recleaning is 4 ~ 6 minutes, the time of scanning of described once purging selection is 6 ~ 8 minutes, and the time of scanning that described secondary is scanned is 6 ~ 8 minutes.
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| CN201610071389.8A CN105537006B (en) | 2016-02-02 | 2016-02-02 | Using the method for biological agent flotation gold containing ore |
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| CN201610071389.8A CN105537006B (en) | 2016-02-02 | 2016-02-02 | Using the method for biological agent flotation gold containing ore |
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| CN105537006B CN105537006B (en) | 2018-04-24 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107520058A (en) * | 2017-08-23 | 2017-12-29 | 中南大学 | A kind of rutile ore dressing composite reagent and its beneficiation method |
| CN108940573A (en) * | 2018-07-30 | 2018-12-07 | 山西紫金矿业有限公司 | A kind of gold mine quickly shunts method for concentrating |
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| CN108940573A (en) * | 2018-07-30 | 2018-12-07 | 山西紫金矿业有限公司 | A kind of gold mine quickly shunts method for concentrating |
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| CN105537006B (en) | 2018-04-24 |
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