CN109482354B - Novel combined collecting and foaming agent for sorting copper ores in alpine regions and application thereof - Google Patents
Novel combined collecting and foaming agent for sorting copper ores in alpine regions and application thereof Download PDFInfo
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- CN109482354B CN109482354B CN201811369430.5A CN201811369430A CN109482354B CN 109482354 B CN109482354 B CN 109482354B CN 201811369430 A CN201811369430 A CN 201811369430A CN 109482354 B CN109482354 B CN 109482354B
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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
- B03D1/012—Organic compounds containing sulfur
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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
- B03D2201/02—Collectors
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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
- B03D2201/04—Frothers
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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
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Abstract
The invention discloses a novel combined collecting foaming agent for sorting copper ores in alpine regions and application thereof, and is characterized by comprising 2-5 parts of azothionitrile ester, 1-2 parts of ammonium butryate, 0.25-0.5 part of diesel oil, 0.5-0.75 part of ethanol and 1-2 parts of 43# cyanic ester, so that the problems that in the winter production process of copper mines in alpine regions, the outdoor temperature reaches below-20 to 30 ℃, and the currently used ester collecting agent is high in melting point and easy to crystallize, inconvenience is brought to production, and production indexes are affected are solved.
Description
Technical Field
The invention relates to the technical field of collecting foaming agents for grading copper ores, in particular to a novel combined collecting foaming agent for grading copper ores in alpine regions and application thereof.
Background
In alpine regions, the temperature is low in winter (the temperature of individual places reaches 20 ℃ below zero, which means the storage temperature of the chemical agent), so that the method brings great influence on mine enterprises producing in winter: 1. during production, the temperature of ores and production water in a factory area and a storage yard is low, so that the mineralization of the medicament in the production process of selecting a factory for copper ores is poor, and the indexes are influenced; 2. the common high-efficiency copper-selecting ester medicament is easy to crystallize in a low-temperature environment, while the most common copper-selecting ester medicament-105 gradually crystallizes at the normal temperature of below 23 ℃, so that inconvenience is brought to production of a selecting factory. Therefore, the medicament can be used only by preheating in the production process, and if the medicament is not heated thoroughly, the medicament is not mineralized well, so that the dosage of the medicament is increased, the production index is influenced, and the economic benefit of an enterprise is reduced finally.
Disclosure of Invention
The invention provides a novel combined collecting and foaming agent for sorting copper ores in alpine regions and application thereof, and provides a novel combined collecting and foaming agent which is not crystallized in a low-temperature environment and can improve the production index of a sorting plant, aiming at the problem that the conventional copper ore collecting and foaming agent is easy to crystallize in field winter in alpine regions and causes lower production index.
In order to achieve the above purpose, the technical scheme of the invention is as follows:
a novel combined collecting and foaming agent for sorting copper ores in alpine regions comprises 2-5 parts of azonitrile ester, 1-2 parts of ammonium nitrate, 0.25-0.5 part of diesel oil, 0.5-0.75 part of ethanol and 1-2 parts of 43# cyanic ester.
The invention also discloses an application of the novel combined collecting and foaming agent for separating copper ores in alpine regions, which comprises the following steps:
(1) wet grinding copper ore until the granularity is-0.074 mm and accounts for 70-85%, the ore grinding concentration is 50-60%, and the adding amount of lime is 500-3000 g/t in the ore grinding process;
(2) the mass percentage concentration of flotation pulp is adjusted to 30-40%, a common collecting agent butyl xanthate is added, the using amount is 10-40 g/t, the novel combined collecting foaming agent for separating copper ores in the alpine region according to claim 1 is added, the adding amount is 30-50 g/t, and copper concentrate and tailings are produced through rough separation, fine separation and scavenging.
The invention has the beneficial effects that:
1. the physical properties of alcohols and petrochemical products with lower melting points are utilized, the melting point of the novel ester combined collecting and foaming agent is reduced, the link that the conventional ester collecting and foaming agent needs to be heated for crystallization is omitted, the dissolving and dispersing degree of a medicament in ore pulp is increased, the consumption of the collecting agent is reduced, the mineral dressing index is improved, and the cost is reduced;
2. the combination of the azonitrile ester, the ammonium nitrate, the diesel oil and the 43# cyanogen ester plays a role in efficiency complementation, the selective collecting capability on copper is enhanced, and low-melting-point ethanol is added as a dissolving agent, so that the novel combined collecting foaming agent provided by the invention has the advantages of simple composition, good stability, simple process, low production cost, stronger selective collecting foaming performance, less environmental pollution and realization of comprehensive recovery of valuable metals.
Detailed Description
Example 1
Low temperature crystallization experiment
2 parts of azonitrile ester, 1 part of ammonium nitrate, 0.25 part of diesel oil, 0.5 part of ethanol and 1 part of 43# cyanogen ester, standing for 3 days in an environment of-30 ℃ after equipment preparation is completed, taking out and observing that no crystallization phenomenon is found.
Example 2
Low temperature crystallization experiment
5 parts of azonitrile ester, 2 parts of ammonium nitrate, 0.5 part of diesel oil, 0.75 part of ethanol and 2 parts of 43# cyanogen ester, standing for 5 days in an environment of-30 ℃ after equipment preparation is completed, taking out and observing that no crystallization phenomenon is found.
Example 3
A certain copper dressing plant in south of Gansu Su:
the ground has an altitude of more than three kilometers, the average temperature of the mine is 4 ℃, the extreme temperature in winter is-35 ℃, and the production is carried out in factories for a year. The grade of the copper raw ore is 0.62%, and the conventional ester collecting foaming agent is seriously crystallized before the novel medicament is used, so that the method brings extreme inconvenience to the production of a selecting factory, not only has high production cost, but also influences indexes. Based on this background and laboratory bench tests, industrial tests were conducted over a period of 30 days.
The invention selects 2 parts of azonitrile ester, 1 part of ammonium nitrate, 0.25 part of diesel oil, 0.5 part of ethanol and 1 part of 43# cyanic ester.
The method comprises the steps of wet-grinding copper ore until the fineness is-0.074 mm and accounts for 70%, the ore grinding concentration is 50%, adding lime in the ore grinding process, wherein the adding amount is 500g/t, the mass percentage concentration of flotation pulp is adjusted to be 30%, adding a common collecting agent butyl xanthate, the using amount is 10g/t, then adding the novel collecting foaming agent disclosed by the invention, the adding amount is 30g/t, performing rough concentration, fine concentration and scavenging to produce copper concentrate and tailings, obtaining the mineral separation index with the accumulative copper concentrate copper grade of 22.88% and the accumulative copper recovery rate of 94.11%, wherein the butyl xanthate is reduced by 20g/t, the collecting foaming agent is reduced by 30g/t, the recovery rate is improved by 6.32% when the copper concentrate copper grade is equivalent, and the effect is obvious.
Example 4
A certain copper dressing plant in south of Gansu Su:
the ground has an altitude of more than three kilometers, the average temperature of the mine is 4 ℃, the extreme temperature in winter is-35 ℃, and the production is carried out in factories for a year. The grade of the copper raw ore is 0.80%, and the conventional ester collecting foaming agent is seriously crystallized before the novel medicament is used, so that the method brings extreme inconvenience to the production of a selecting factory, not only has high production cost, but also influences indexes. Based on this background and laboratory bench tests, industrial tests were conducted over a period of 30 days.
The invention selects 2 parts of azonitrile ester, 1 part of ammonium nitrate, 0.25 part of diesel oil, 0.5 part of ethanol and 1 part of 43# cyanic ester.
Wet grinding copper ore until the fineness is 0.074mm and accounts for 75%, the ore grinding concentration is 55%, and lime is added in the ore grinding process, wherein the adding amount is 1500 g/t. The mass percentage concentration of the flotation pulp is adjusted to 35%, a common collecting agent butyl xanthate is added, the using amount is 20g/t, then the novel collecting foaming agent is added, the adding amount is 40g/t, and copper concentrate and tailings are produced through rough concentration, fine concentration and scavenging. And obtaining the beneficiation index with 22.88 percent of accumulated copper concentrate copper grade and 94.11 percent of accumulated copper recovery rate. Compared with the prior art of industrial tests, the butyl xanthate is reduced by 20g/t, the collecting foaming agent is reduced by 30g/t, the recovery rate is improved by 6.32 percent points under the condition that the copper grade of the copper concentrate is equivalent, and the effect is obvious.
Example 5
Copper dressing plant in the Aletai region, Xinjiang: the average temperature of the mine is 15 ℃, the extreme lowest temperature in winter is-28 ℃, and the industrial test of 30 days is carried out in a factory for year-round production.
The invention selects 5 parts of azonitrile ester, 2 parts of ammonium nitrate, 0.5 part of diesel oil, 0.75 part of ethanol and 2 parts of 43# cyanic ester.
Wet grinding copper ore until the fineness is 0.074mm and accounts for 80%, the ore grinding concentration is 50%, and adding lime into the ore grinding process, wherein the adding amount is 1000 g/t. The mass percentage concentration of the flotation pulp is adjusted to 35%, a common collecting agent butyl xanthate is added, the using amount is 25g/t, then the novel collecting foaming agent is added, the adding amount is 35g/t, copper concentrate and tailings are produced through rough concentration, fine concentration and scavenging, and the mineral separation index with the copper grade of 20.88% and the copper recovery rate of 91.39% is obtained. Compared with the prior art of industrial tests, the butyl xanthate is reduced by 40g/t, the collecting foaming agent is reduced by 40g/t, the copper grade of copper concentrate is improved by 2.19 percentage points, the recovery rate is improved by 4.51 percentage points, and the effect is obvious.
Example 6
Copper dressing plant in the Aletai region, Xinjiang: the average temperature of the mine is 15 ℃, the extreme lowest temperature in winter is-28 ℃, and the industrial test of 30 days is carried out in a factory for year-round production.
The invention selects 5 parts of azonitrile ester, 2 parts of ammonium nitrate, 0.5 part of diesel oil, 0.75 part of ethanol and 2 parts of 43# cyanic ester.
Wet grinding copper ore until the fineness is-0.074 mm and accounts for 85%, the ore grinding concentration is 60%, and adding lime in the ore grinding process, wherein the adding amount is 3000 g/t. The mass percentage concentration of the flotation pulp is adjusted to be 40%, a common collecting agent butyl xanthate is added, the using amount is 40g/t, then the novel collecting foaming agent is added, the adding amount is 50g/t, copper concentrate and tailings are produced through rough concentration, fine concentration and scavenging, and the mineral separation index with the copper grade of 20.88% and the copper recovery rate of 91.39% is obtained. Compared with the prior art of industrial tests, the butyl xanthate is reduced by 40g/t, the collecting foaming agent is reduced by 40g/t, the copper grade of copper concentrate is improved by 2.19 percentage points, the recovery rate is improved by 4.51 percentage points, and the effect is obvious.
Example 7
A copper dressing plant in the region of Tibet forest: the ground has an altitude of more than three thousand, five and hundred meters, an average mine temperature of 11 ℃, an extreme winter temperature of-30 ℃, and year-round production in selected plants. Before the novel medicament is used, the conventional ester collecting foaming agent in a factory has the disadvantages of serious crystallization, large medicament consumption and low production index. In order to fundamentally solve the problem of factory selection, laboratory tests are firstly carried out, and then industrial tests are carried out on site.
The invention selects 3 parts of azonitrile ester, 1.5 parts of ammonium nitrate black drug, 0.3 part of diesel oil, 0.6 part of ethanol and 1.5 parts of 43# cyanic ester.
1. The laboratory test time is winter, the outdoor air temperature is below zero, and the test water is zero. The grade of the copper raw ore is 0.95-1.02%, the copper ore of the dressing plant is wet-ground until the fineness is-0.074 mm and accounts for 80%, the ore grinding concentration is 50%, and lime is added in the ore grinding process, wherein the adding amount is 2000 g/t. The mass percentage concentration of the flotation pulp is adjusted to 35%, a common collecting agent butyl xanthate is added, the using amount is 40g/t, then a novel collecting foaming agent is added, the adding amount is 60g/t, and copper concentrate and tailings are produced through rough concentration, fine concentration and scavenging. And the beneficiation index of 20.43 percent of copper grade of the copper concentrate and 89.24 percent of cumulative copper recovery rate is obtained. Compared with the conventional ester collecting foaming agent, the butyl xanthate is reduced by 50g/t, the collecting foaming agent is reduced by 55 g/t, the copper grade of copper concentrate is equivalent, and the copper recovery rate is improved by 5.11 percentage points.
2. On the basis of laboratory bench tests, industrial tests were carried out over a period of 30 days. Wet grinding copper ore until the fineness is-0.074 mm and accounts for 80%, the ore grinding concentration is 50%, and adding lime in the ore grinding process, wherein the adding amount is 2000 g/t. The mass percentage concentration of the flotation pulp is adjusted to 35%, a common collecting agent butyl xanthate is added, the using amount is 50g/t, then a novel collecting foaming agent is added, the adding amount is 70g/t, and copper concentrate and tailings are produced through rough concentration, fine concentration and scavenging. And obtaining the beneficiation indexes of 19.448 percent of accumulated copper grade and 87.59 percent of accumulated copper recovery rate. Compared with the prior art of industrial tests, the butyl xanthate is reduced by 40g/t, the collecting foaming agent is reduced by 42 g/t, the copper recovery rate is improved by 4.51 percent points under the condition that the copper grade of copper concentrate is equivalent, and the effect is obvious.
Example 8
A copper dressing plant in the region of Tibet forest: the ground has an altitude of more than three thousand, five and hundred meters, an average mine temperature of 11 ℃, an extreme winter temperature of-30 ℃, and year-round production in selected plants. Before the novel medicament is used, the conventional ester collecting foaming agent in a factory has the disadvantages of serious crystallization, large medicament consumption and low production index. In order to fundamentally solve the problem of factory selection, laboratory tests are firstly carried out, and then industrial tests are carried out on site.
The invention selects 3 parts of azonitrile ester, 1.5 parts of ammonium nitrate black drug, 0.3 part of diesel oil, 0.6 part of ethanol and 1.5 parts of 43# cyanic ester.
1. The laboratory test time is winter, the outdoor air temperature is below zero, and the test water is close to zero. The grade of the copper raw ore is 0.95-1.02%, the copper ore of the dressing plant is wet-ground until the fineness is-0.074 mm and accounts for 85%, the ore grinding concentration is 60%, and lime is added in the ore grinding process, wherein the adding amount is 3000 g/t. The mass percentage concentration of the flotation pulp is adjusted to be 38%, a common collecting agent butyl xanthate is added, the using amount is 60g/t, then a novel collecting foaming agent is added, the adding amount is 80g/t, and copper concentrate and tailings are produced through rough concentration, fine concentration and scavenging. And the beneficiation index of 20.43 percent of copper grade of the copper concentrate and 89.24 percent of cumulative copper recovery rate is obtained. Compared with the conventional ester collecting foaming agent, the butyl xanthate is reduced by 50g/t, the collecting foaming agent is reduced by 55 g/t, the copper grade of copper concentrate is equivalent, and the copper recovery rate is improved by 5.11 percentage points.
2. On the basis of laboratory bench tests, industrial tests were carried out over a period of 30 days. Wet grinding copper ore until the fineness is-0.074 mm and accounts for 85%, the ore grinding concentration is 60%, and adding lime in the ore grinding process, wherein the adding amount is 3000 g/t. The mass percentage concentration of the flotation pulp is adjusted to be 38%, a common collecting agent butyl xanthate is added, the using amount is 70g/t, then a novel collecting foaming agent is added, the adding amount is 900g/t, and copper concentrate and tailings are produced through rough concentration, fine concentration and scavenging. And obtaining the beneficiation indexes of 19.448 percent of accumulated copper grade and 87.59 percent of accumulated copper recovery rate. Compared with the prior art of industrial tests, the butyl xanthate is reduced by 40g/t, the collecting foaming agent is reduced by 42 g/t, the copper recovery rate is improved by 4.51 percent points under the condition that the copper grade of copper concentrate is equivalent, and the effect is obvious.
Claims (2)
1. The novel combined collecting and foaming agent for sorting copper ores in alpine regions is characterized by comprising 2-5 parts of azonitrile ester, 1-2 parts of ammonium nitrate, 0.25-0.5 part of diesel oil, 0.5-0.75 part of ethanol and 1-2 parts of 43# cyanic ester.
2. The application of the novel combined collecting and foaming agent for separating copper ores in alpine regions according to claim 1 is characterized by comprising the following steps:
(1) wet grinding copper ore until the granularity is-0.074 mm and accounts for 70-85%, the ore grinding concentration is 50-60%, and the adding amount of lime is 500-3000 g/t in the ore grinding process;
(2) the mass percentage concentration of flotation pulp is adjusted to 30-40%, a common collecting agent butyl xanthate is added, the using amount is 10-40 g/t, the novel combined collecting foaming agent for separating copper ores in the alpine region according to claim 1 is added, the adding amount is 30-50 g/t, and copper concentrate and tailings are produced through rough separation, fine separation and scavenging.
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| CN110038730B (en) * | 2019-05-20 | 2021-08-17 | 北京矿冶科技集团有限公司 | Beneficiation method for copper sulphide cobalt ore containing two types of cobalt-containing minerals |
| CN110947523B (en) * | 2019-11-22 | 2022-05-03 | 西北矿冶研究院 | Collecting agent for recovering copper, lead and zinc minerals from iron ore dressing tailings |
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| EP0097505A1 (en) * | 1982-06-17 | 1984-01-04 | Sentrachem Limited | Flotation processes using depressants |
| WO2017116542A1 (en) * | 2015-12-28 | 2017-07-06 | Chevron Phillips Chemical Company Lp | Mixed decyl mercaptans compositions and use thereof as mining chemical collectors |
| WO2018045025A1 (en) * | 2016-08-31 | 2018-03-08 | Kemiraoyj | Cationic polymer selective depressants and use thereof in mineral ore purification methods |
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| CN101172267B (en) * | 2007-12-03 | 2011-05-11 | 西部矿业股份有限公司 | Technique for improving complex vulcanizing copper mine ore floatation indicators |
| CN101992151B (en) * | 2010-11-11 | 2012-11-21 | 西北矿冶研究院 | High-sulfur copper ore collecting agent |
| CN101983777B (en) * | 2010-11-23 | 2012-12-12 | 昆明冶金研究院 | Alumyte flotation compound collecting agent |
| CN102600986A (en) * | 2011-12-21 | 2012-07-25 | 西北矿冶研究院 | Efficient copper-nickel polymetallic sulphide ore beneficiation reagent |
| CN104923409A (en) * | 2014-03-19 | 2015-09-23 | 荆春芳 | High efficient copper sulphide ore collector |
| CN104668102B (en) * | 2015-03-10 | 2017-08-04 | 云南磷化集团有限公司 | A kind of low temperature resistant Cellophane direct flotation collecting agent and preparation method thereof |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0097505A1 (en) * | 1982-06-17 | 1984-01-04 | Sentrachem Limited | Flotation processes using depressants |
| WO2017116542A1 (en) * | 2015-12-28 | 2017-07-06 | Chevron Phillips Chemical Company Lp | Mixed decyl mercaptans compositions and use thereof as mining chemical collectors |
| WO2018045025A1 (en) * | 2016-08-31 | 2018-03-08 | Kemiraoyj | Cationic polymer selective depressants and use thereof in mineral ore purification methods |
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