CN110465411B - Preferential flotation method for copper-lead sulfide minerals - Google Patents
Preferential flotation method for copper-lead sulfide minerals Download PDFInfo
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- CN110465411B CN110465411B CN201910836743.5A CN201910836743A CN110465411B CN 110465411 B CN110465411 B CN 110465411B CN 201910836743 A CN201910836743 A CN 201910836743A CN 110465411 B CN110465411 B CN 110465411B
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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
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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
- B03D1/018—Mixtures of inorganic and organic compounds
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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
- B03D1/08—Subsequent treatment of concentrated 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
- B03D2201/00—Specified effects produced by the flotation agents
- B03D2201/06—Depressants
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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
- B03D2203/00—Specified materials treated by the flotation agents; specified applications
- B03D2203/02—Ores
Abstract
The invention relates to a preferential flotation method of copper-lead sulfide minerals, which comprises the steps of grinding raw ores and roughing copper, dividing one path of the raw ores into two paths of the raw ores and carrying out secondary copper concentration to obtain copper concentrate, dividing the other path of the raw ores into two paths of the raw ores and carrying out secondary copper scavenging and secondary lead roughing, dividing one path of the raw ores into two paths of the raw ores and carrying out secondary lead concentration to obtain lead concentrate, and carrying out secondary lead scavenging on the other path of the raw ores to obtain tailings, the method is characterized by also comprising the preparation of galena inhibitor ZJ201, wherein ZJ201 is adopted to inhibit lead sulfide ore, then the lead sulfide ore is floated by ethionamide, the lead sulfide ore inhibited by ZJ201 can be floated without any activation, the method can separate various minerals in copper-lead sulfide ore with high efficiency, the recovery rate and quality of copper concentrate and lead concentrate are obviously improved, the self-made ZJ201 is non-toxic and environment-friendly, has less consumption, low cost, safe addition and convenient use, the method has the advantages of popularization and application value and the like in the flotation separation of copper-lead sulfide minerals, and is suitable for the application in the field of mineral processing.
Description
Technical Field
The invention relates to a preferential flotation method for copper-lead sulfide minerals, which is suitable for the application in the field of mineral processing.
Background
With the improvement of the comprehensive utilization level of resources, most nonferrous metal mines adopt a flotation method to recover pyrite from tailings, the pyrite is widely used for roasting to prepare acid, and the pyrite cinder has high iron content and can be used as a raw material for iron making.
The pyrite is mostly obtained by flotation from tailings of non-ferrous metal ore dressing, and is often associated with non-ferrous metals such as copper, copper is usually recovered from pyrite cinder by an acid leaching method in an acid plant, but because the sulfur content of the pyrite is more than 45%, the boiling roasting temperature of the pyrite is 850-950 ℃, copper ferrite is mostly formed in the pyrite cinder, the sulfuric acid leaching rate of copper is about 30%, a large amount of copper remains in the acid leaching cinder, the waste of copper resources is caused, and the copper in the acid leaching cinder is a harmful element for an iron-making process. In view of the fact that when the concentration of sulfuric acid obtained by acid leaching of pyrite cinder is low (about 10g/L), the leaching rate of copper is low (about 30%), in order to improve the recovery rate of copper, an acid plant usually increases the concentration of sulfuric acid obtained by acid leaching to over 50g/L, and although the leaching rate of copper can be greatly improved (up to about 60%), copper extraction can be performed only after the leaching solution is neutralized to a pH value of about 2.0 by lime, a large amount of calcium sulfate is generated in the neutralization process, and the calcium sulfate is crystallized on holes of filter cloth, so that the consumption of the filter cloth is large, the production cost is high, and more calcium sulfate particles penetrate into the copper extraction stock solution, and the problems of difficult extraction phase separation, increased consumption of an extracting agent and the like are caused.
In order to solve the above problems, for example, chinese patent application 200810136201.9 discloses a "copper-lead-zinc sulphide ore potential control preferential flotation process", which can preferentially float copper-lead-zinc sulphide ore, but the recovery rates of the obtained product copper concentrate and lead concentrate are both low, and it is difficult to effectively control the ore pulp potential at a predetermined value in an industrial scale; for another example, Chinese patent CN93114485.X discloses a method for' electric potential regulation and preferential flotation of copper-lead-zinc sulfide oreMethod "by grinding and mixing the raw ore with water to form a slurry, flushing air into the resulting suspension to adjust it to a certain redox potential, and subsequently successively applying SO2、Ca(OH)2A collector and a foaming agent, then carrying out copper flotation, but in the presence of SO2Strong pungent odor, serious pollution to environment and the like; for another example, chinese patent application 201710801120.5 discloses a "differential flotation separation method for complex copper-lead-zinc sulfide ore with partially activated sphalerite", which is to add a flotation rate regulator and a pH regulator to reduce the flotation rates of chalcopyrite and unactivated sphalerite, and float out the activated bulk concentrate and the copper concentrate with low lead and zinc contents in sequence, so as to obtain the copper concentrate and the bulk concentrate containing copper, lead and zinc, but lead concentrate cannot be obtained, the level of copper, lead and zinc contained in the bulk concentrate is low to no market price, and most sphalerite in the bulk concentrate is activated, so that re-separation is difficult.
Therefore, the development of a preferential flotation method for copper-lead sulfide minerals is particularly urgent and has great significance.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a method for preferentially floating copper-lead sulfide minerals, which can effectively solve the problem of environmental pollution caused by dichromate and can also solve the problems of difficult removal of the mixed copper-lead concentrate, difficult separation of copper and lead, high cost and poor concentrate quality in the prior separation process.
The task of the invention is completed by the following technical scheme:
a process for preferentially floating the copper-lead sulfide ore includes such steps as grinding raw ore, roughing copper, collecting copper concentrate, scavenging copper, collecting lead concentrate, scavenging lead sulfide ore with ZJ201, floating out with ethidene-nitrogen, and floating the lead sulfide ore inhibited by ZJ 201.
The percentages referred to in the specification are percentages by mass.
The invention has the following advantages or effects:
(1) the method realizes the high-efficiency separation of various minerals in the copper-lead sulfide minerals, and obviously improves the recovery rate and quality of copper concentrate and lead concentrate.
(2) The prepared galena inhibitor ZJ201 is nontoxic and environment-friendly, and has the advantages of simple preparation method, small using amount, low cost, safe addition and convenient use.
(3) Has popularization and application value in the flotation separation of copper-lead sulfide minerals.
Drawings
Figure 1 is a process flow diagram of a known copper-lead sulphide mineral flotation method.
Fig. 2 is a process flow diagram of a method for the preferential flotation of copper-lead sulphide minerals according to the invention.
The description is described in further detail below with reference to the accompanying drawings.
Detailed Description
As shown in figure 1, the method for preferentially floating copper-lead sulfide minerals comprises the steps of grinding raw ores and roughing copper, dividing one path of raw ores into two paths of raw ores and carrying out secondary copper concentration to obtain copper concentrate, dividing the other path of raw ores into two paths of raw ores and carrying out secondary copper concentration to obtain lead concentrate, carrying out secondary copper scavenging and secondary lead roughing on the other path of raw ores and carrying out secondary lead concentration on the other path of raw ores, and carrying out secondary lead scavenging on the other path of raw ores to obtain tailings.
The process of the invention may further be:
the galena inhibitor ZJ201 is a liquid obtained by reacting 5-10 parts of a high molecular compound, 0.5-2 parts of phosphate, 0.8-4 parts of sodium sulfite and 0.1-0.5 part of a catalyst at 50-80 ℃ for 1-6 hours.
The high molecular compound is any one of carboxymethyl cellulose, guar gum and starch.
The phosphate is any one of sodium phosphate, sodium dihydrogen phosphate and disodium hydrogen phosphate.
The catalyst adopts any one or combination of polyethylene glycol, polyvinyl alcohol and urea.
The conventional process steps and the specific process conditions are as follows:
(1) grinding the copper-lead sulfide ore until the fineness of the copper-lead sulfide ore is minus 0.074mm and accounts for 68-74 percent;
(2) copper roughing, namely adjusting the concentration of ore pulp to 25% -30%, adding 150-400 g/t of galena inhibitor ZJ201, stirring for 5-10 min, adding 15-40 g/t of copper collecting agent Z200, and performing copper roughing to obtain copper roughing concentrate and copper roughing tailings;
(3.1) copper concentration, namely performing concentration twice on the copper roughing concentrate, respectively adding the galena inhibitor ZJ201 according to 60-100 g/t and 30-50 g/t, and adding potassium dichromate according to 100g/t and 50g/t to obtain copper concentration tailings and copper concentrate products;
(3.2) copper scavenging, namely, scavenging the copper roughing tailings twice, adding the galena inhibitor ZJ201 into the copper roughing tailings at the ratio of 80-200 g/t to 40-100 g/t, and adding the copper collecting agent Z200 into the copper roughing tailings and the copper scavenging tailings at the ratio of 8-20 g/t to 4-10 g/t to obtain lead roughing tailings and copper scavenging tailings;
(3.2.1) lead roughing, namely, performing lead roughing on lead roughing ores twice, adding ethyl-sulfur-nitrogen serving as a galena collecting agent into the lead roughing ores according to the proportion of 15-30 g/t and 8-15 g/t respectively, and adding foaming agent No. 2 oil according to the proportion of 8-16 g/t and 4-8 g/t to obtain lead roughing concentrate and lead roughing tailings;
(3.2.2) lead concentration, wherein lead scavenging tailings and lead concentration tailings are obtained by performing concentration on lead roughing concentrates twice, and no medicament is required to be added in the concentration;
(3.2.11) lead scavenging, in which ethidium and sulphur nitrogen as a galena collecting agent are added into lead roughing tailings according to the proportion of 4-8 g/t to carry out lead scavenging, so as to obtain lead scavenging middlings and lead scavenging tailings, and the lead scavenging tailings are put into a tailing pond.
And (4) returning the copper concentration tailings to the step (3.1) for copper concentration and recleaning.
And returning the copper scavenging tailings to the previous step for recleaning.
And (3) returning the lead dressing tailings to the step (3.2.2) for lead dressing and recleaning.
And respectively returning the lead scavenging middlings and the lead concentrate tailings to the previous step for re-separation.
As described above, the present invention can be preferably realized. The above embodiments are only preferred embodiments of the present invention, but the embodiments of the present invention are not limited by the above embodiments, and other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be regarded as equivalent replacements within the protection scope of the present invention.
Claims (10)
1. A process for preferentially floating the copper-lead sulfide ore includes such steps as grinding raw ore, roughing copper, concentrating copper twice to obtain copper concentrate, scavenging copper twice, roughing lead twice to obtain lead concentrate, scavenging lead twice to obtain tailings, reacting at 50-80 deg.C for 1-6 hr to obtain liquid inhibitor ZJ201, suppressing lead sulfide ore by ZJ201, floating lead sulfide ore by ethidene nitrogen, and floating the lead sulfide ore suppressed by ZJ 201.
2. The method according to claim 1, wherein the galena inhibitor ZJ201 is a liquid obtained by reacting 5 to 10 parts of a polymer compound, 0.5 to 2 parts of a phosphate, 0.8 to 4 parts of sodium sulfite, and 0.1 to 0.5 part of a catalyst at 50 to 80 ℃ for 1 to 6 hours.
3. The method according to claim 2, wherein the polymer compound is any one of carboxymethyl cellulose, guar gum and starch.
4. The method as set forth in claim 2, wherein the phosphate is any one of sodium phosphate, sodium dihydrogen phosphate and disodium hydrogen phosphate.
5. The method as set forth in claim 2, characterized in that the catalyst is any one or combination of polyethylene glycol, polyvinyl alcohol and urea.
6. The method of claim 1, wherein the conventional process steps and the specific process conditions are as follows:
(1) grinding the copper-lead sulfide ore until the fineness of the copper-lead sulfide ore is minus 0.074mm and accounts for 68-74 percent;
(2) roughing copper, namely adjusting the concentration of the ore pulp to 25% -30%, adding a galena inhibitor ZJ201 according to 150-400 g/t, stirring for 5-10 min, adding a copper collecting agent Z200 according to 15-40 g/t, and roughing copper to obtain a roughing copper concentrate and roughing copper tailings;
(3.1) carrying out copper concentration, carrying out concentration twice on the copper roughing concentrate, respectively adding a galena inhibitor ZJ201 according to 60-100 g/t and 30-50 g/t, and adding potassium dichromate according to 100g/t and 50g/t to obtain copper concentration tailings and copper concentrate products;
(3.2) copper scavenging, namely, scavenging the copper roughing tailings twice, adding a galena inhibitor ZJ201 according to 80-200 g/t and 40-100 g/t, and adding a copper collecting agent Z200 according to 8-20 g/t and 4-10 g/t to obtain lead roughing tailings and copper scavenging tailings;
(3.2.1) lead roughing, namely, performing lead roughing on lead roughing ores twice, adding ethyl-sulfur-nitrogen serving as a galena collecting agent into the lead roughing ores according to the proportion of 15-30 g/t and 8-15 g/t respectively, and adding foaming agent No. 2 oil according to the proportion of 8-16 g/t and 4-8 g/t to obtain lead roughing concentrate and lead roughing tailings;
(3.2.2) lead concentration, wherein lead scavenging tailings and lead concentration tailings are obtained by performing concentration on lead roughing concentrates twice, and no medicament is required to be added in the concentration;
(3.2.11) lead scavenging, in which ethidium and sulphur nitrogen as a galena collecting agent are added into lead roughing tailings according to the proportion of 4-8 g/t to carry out lead scavenging, so as to obtain lead scavenging middlings and lead scavenging tailings, and the lead scavenging tailings are put into a tailing pond.
7. The process as set forth in claim 6, characterized in that said copper concentration tailings are returned to step (3.1) for copper concentration and recleaning.
8. The method as set forth in claim 6, characterized in that said copper scavenged tailings are returned to the previous step for recleaning.
9. The method as set forth in claim 6, characterized in that the lead concentration tailings are returned to the step (3.2.2) for lead concentration and recleaning.
10. The method as set forth in claim 6, characterized in that said lead scavenging middlings and lead concentration tailings are returned to the previous step for recleaning respectively.
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| CN111632756A (en) * | 2020-06-11 | 2020-09-08 | 中国恩菲工程技术有限公司 | Beneficiation method of associated copper-lead-zinc-pyrite |
| CN112774869B (en) * | 2020-12-25 | 2022-09-16 | 厦门紫金矿冶技术有限公司 | Pyrite inhibitor, preparation thereof and application thereof in copper-lead-zinc multi-metal sulfide ores |
| CN113245067B (en) * | 2021-06-23 | 2021-10-15 | 北京矿冶研究总院 | Guar gum base compound and preparation method thereof, zinc-sulfur separation inhibitor and zinc-sulfur flotation separation method, flocculant and application thereof |
| CN113522516B (en) * | 2021-07-12 | 2022-09-23 | 中南大学 | Preparation method of high-purity natural pyrite |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1087559A (en) * | 1992-11-12 | 1994-06-08 | 金属股份有限公司 | The diffeential floatation method of copper-lead-zinc sulfide ore |
| WO2006037206A1 (en) * | 2004-10-07 | 2006-04-13 | Inco Limited | Arsenide depression in flotation of multi-sulfide minerals |
| CN102225369A (en) * | 2011-05-18 | 2011-10-26 | 河南省岩石矿物测试中心 | Beneficiation method for separating copper-lead-zinc multi-metal complex ore embedded with fine particles |
| CN103350033A (en) * | 2013-06-29 | 2013-10-16 | 西北矿冶研究院 | Mineral separation method for separating chalcopyrite from galena, sphalerite and pyrite |
| CN104624386A (en) * | 2015-02-12 | 2015-05-20 | 中国地质科学院矿产综合利用研究所 | Copper-lead bulk concentrate flotation separation inhibitor and preparation method and beneficiation method thereof |
| CN105834010A (en) * | 2016-04-21 | 2016-08-10 | 西北矿冶研究院 | Method for recovering valuable components from sulfur-oxygen mixed copper-lead ore |
| CN106423537A (en) * | 2016-09-30 | 2017-02-22 | 青海省地质矿产测试应用中心 | Ore dressing process for iron polymetallic ore |
| CN109158218A (en) * | 2018-06-29 | 2019-01-08 | 昆明理工大学 | A kind of composite inhibitor and its application method of galena |
| CN109277202A (en) * | 2018-11-01 | 2019-01-29 | 祁东县鸟江大岭铅锌矿业有限公司 | A kind of processing equipment recycling lead zinc-copper from tailing |
| CN109746123A (en) * | 2018-12-28 | 2019-05-14 | 新巴尔虎右旗荣达矿业有限责任公司 | Agent and its beneficiation method are selected in catching for polymetallic lead-zinc sulfide ore stone association copper silver recovery |
| CN110106521A (en) * | 2019-04-19 | 2019-08-09 | 紫金矿业集团股份有限公司 | Pyrite cinder recycles high acidic oils process for copper |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7516788B2 (en) * | 2007-02-28 | 2009-04-14 | Halliburton Energy Services, Inc. | Methods of marking a zone of a wellbore for localizing the source of produced particulate |
-
2019
- 2019-09-05 CN CN201910836743.5A patent/CN110465411B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1087559A (en) * | 1992-11-12 | 1994-06-08 | 金属股份有限公司 | The diffeential floatation method of copper-lead-zinc sulfide ore |
| WO2006037206A1 (en) * | 2004-10-07 | 2006-04-13 | Inco Limited | Arsenide depression in flotation of multi-sulfide minerals |
| CN102225369A (en) * | 2011-05-18 | 2011-10-26 | 河南省岩石矿物测试中心 | Beneficiation method for separating copper-lead-zinc multi-metal complex ore embedded with fine particles |
| CN103350033A (en) * | 2013-06-29 | 2013-10-16 | 西北矿冶研究院 | Mineral separation method for separating chalcopyrite from galena, sphalerite and pyrite |
| CN104624386A (en) * | 2015-02-12 | 2015-05-20 | 中国地质科学院矿产综合利用研究所 | Copper-lead bulk concentrate flotation separation inhibitor and preparation method and beneficiation method thereof |
| CN105834010A (en) * | 2016-04-21 | 2016-08-10 | 西北矿冶研究院 | Method for recovering valuable components from sulfur-oxygen mixed copper-lead ore |
| CN106423537A (en) * | 2016-09-30 | 2017-02-22 | 青海省地质矿产测试应用中心 | Ore dressing process for iron polymetallic ore |
| CN109158218A (en) * | 2018-06-29 | 2019-01-08 | 昆明理工大学 | A kind of composite inhibitor and its application method of galena |
| CN109277202A (en) * | 2018-11-01 | 2019-01-29 | 祁东县鸟江大岭铅锌矿业有限公司 | A kind of processing equipment recycling lead zinc-copper from tailing |
| CN109746123A (en) * | 2018-12-28 | 2019-05-14 | 新巴尔虎右旗荣达矿业有限责任公司 | Agent and its beneficiation method are selected in catching for polymetallic lead-zinc sulfide ore stone association copper silver recovery |
| CN110106521A (en) * | 2019-04-19 | 2019-08-09 | 紫金矿业集团股份有限公司 | Pyrite cinder recycles high acidic oils process for copper |
Non-Patent Citations (2)
| Title |
|---|
| 硫化铜铅矿物浮选分离的电化学机理研究;董艳红;《中国优秀硕士学位论文全文数据库 工程科技Ⅰ辑》;20120115(第1期);B021-211页 * |
| 黄铜矿和方铅矿浮选分离的基础研究;魏明安;《中国博士学位论文全文数据库 工程科技Ⅰ辑》;20110615(第6期);B021-17页 * |
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