CN113713967B - Collecting agent for reducing mutual content of copper and nickel in high nickel matte flotation separation - Google Patents
Collecting agent for reducing mutual content of copper and nickel in high nickel matte flotation separation Download PDFInfo
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- CN113713967B CN113713967B CN202111026726.9A CN202111026726A CN113713967B CN 113713967 B CN113713967 B CN 113713967B CN 202111026726 A CN202111026726 A CN 202111026726A CN 113713967 B CN113713967 B CN 113713967B
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- nickel
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- flotation separation
- dithiophosphoric acid
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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
- B03D1/014—Organic compounds containing phosphorus
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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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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Abstract
The invention relates to a collector for reducing mutual content of copper and nickel in high nickel matte flotation separation, which comprises the following components in parts by weight: 50-70 parts of O-isopropyl-N-ethylthiocarbamate, 30-40 parts of dihydrocarbyl dithiophosphoric acid and 2-10 parts of 4-methyl-2-amyl alcohol. The invention has relatively stable property, strong collecting capability and high selectivity.
Description
Technical Field
The invention relates to the field of mineral flotation, in particular to a collector for reducing mutual content of copper and nickel in high nickel matte flotation separation.
Background
The high nickel matte is a eutectic of nickel, copper, cobalt, iron and sulfide containing a small amount of rare metals, which is smelted by nickel-copper bulk concentrate through a top-blown furnace, a flash furnace and the like, and mainly comprises hexagonal nickel sulfide ore, chalcocite, chalcopyrite, alloy and other metal sulfide ores. The hexagonal sulfur nickel ore accounts for about 65-70%, and the chalcocite (macula) accounts for about 25-30% and about 6%. The separation method of high nickel matte is roughly classified into a layered smelting method, a leaching method and a flotation method. The flotation method is an effective method for separating the modern high nickel matte because of the simple process and good separation index, which is more and more important and widely applied. However, since hexagonal chalcopyrite and chalcosite are two closely floatable sulphide minerals, it presents a great challenge to the flotation separation of high grade nickel matte. In addition to the optimal tuning of the flotation process, the development of collectors for high selectivity chalcopyrite is also a relatively low cost and significant approach.
Currently, high nickel matte flotation separation is performed in an alkaline environment at a ph=about 12.5, and commonly used collectors are mainly xanthates and dithioformates. The xanthate collector has a strong collecting effect on bright (spotted) copper ores, but has a relatively strong collecting capability on hexagonal sulfur-nickel ores, so that the flotation separation indexes of the two copper-nickel sulfides are relatively poor. The thiocarboxylic acid ester collector, such as Z-200, has better selectivity to the chalcopyrite, but has relatively weaker collecting capability to the chalcopyrite, lower recovery rate and increased medicament cost. Therefore, developing a collector with strong capability of collecting bright (spotted) copper ores and high selectivity is very critical for reducing the mutual content of copper and nickel in high nickel matte flotation separation.
Disclosure of Invention
The invention aims to solve the technical problem of providing the collector which has strong collecting capacity and high selectivity and can reduce the mutual content of copper and nickel in high nickel matte flotation separation.
In order to solve the problems, the collector for reducing the mutual content of copper and nickel in the flotation separation of high nickel matte is characterized in that: the collector consists of the following components in parts by weight: 50-70 parts of O-isopropyl-N-ethylthiocarbamate (Z-200), 30-40 parts of dihydrocarbyl dithiophosphoric acid and 2-10 parts of 4-methyl-2-pentanol (MIBC).
The structural formula of the O-isopropyl-N-ethylthiocarbamate (Z-200) is
。
The structural general formula of the dialkyl dithiophosphoric acid is as follows:
wherein: r is R 1 、R 2 Are all aliphatic hydrocarbon groups.
The dialkyl dithiophosphoric acid refers to one of dipropyl dithiophosphoric acid, diisopropyl dithiophosphoric acid and diethyl dithiophosphoric acid.
Compared with the prior art, the invention has the following advantages:
1. in the invention, the O-isopropyl-N-ethylthiocarbamate (namely Z-200) and the dihydrocarbyl dithiophosphoric acid both contain a nucleophilic sulfur atom and a hydrophobic alkyl chain, so that the O-isopropyl-N-ethylthiocarbamate and the dihydrocarbyl dithiophosphoric acid have the characteristics of collecting and foaming, and have the same effect in the flotation separation of high nickel matte, thus not only greatly reducing the consumption of the foaming agent MIBC, but also having strong collecting capability and high selectivity.
2. The three medicaments are combined together to form colorless to yellowish liquid, and through multiple tests, the flotation index of the liquid is good in repeatability, so that the property of the liquid is relatively stable.
3. The open-circuit and closed-circuit tests prove that the alkaline strip with pH=12.5 is used as the combined medicament
Under the piece, the method has obvious effect of reducing the mutual content of copper and nickel in the flotation separation of high nickel matte.
Drawings
The following describes the embodiments of the present invention in further detail with reference to the drawings.
FIG. 1 is a flow of an open circuit flotation test according to the present invention.
FIG. 2 is a closed circuit flotation test flow of the present invention.
Detailed Description
The collector for reducing the mutual content of copper and nickel in high nickel matte flotation separation comprises the following components in parts by weight: 50-70 parts of O-isopropyl-N-ethylthiocarbamate (Z-200), 30-40 parts of dihydrocarbyl dithiophosphoric acid and 2-10 parts of 4-methyl-2-pentanol (MIBC).
Preferably: the composite material consists of the following components in parts by weight: 64 parts of O-isopropyl-N-ethylthiocarbamate (Z-200), 33 parts of dihydrocarbyl dithiophosphoric acid and 3 parts of 4-methyl-2-pentanol (MIBC).
Wherein: the structural formula of the O-isopropyl-N-ethylthiocarbamate (Z-200) is
。
The structural general formula of the dialkyl dithiophosphoric acid is:
wherein: r is R 1 、R 2 Are all aliphatic hydrocarbon groups. Preferably one of dipropyl dithiophosphoric acid, diisopropyl dithiophosphoric acid, diethyl dithiophosphoric acid.
The synthetic route of the dialkyl dithiophosphoric acid is shown in the following formula:
specific processes refer to: rao Tonghua Synthesis and flotation test of isobutyl ammonium black agent [ J ]. Nonferrous metals: mineral separation section 1986 (4): 29-34.
Example 1 a collector for reducing the mutual copper-nickel content of a high nickel matte flotation separation consisting of 64kg Z-200, 33kg dipropyldithiophosphoric acid, 3kg MIBC.
Example 2 a collector for reducing the mutual copper-nickel content of a high nickel matte flotation separation consisted of 64kg Z-200, 33kg diisopropyldithiophosphoric acid, 3kg MIBC.
Example 3 a collector for reducing the mutual copper-nickel content of a high nickel matte flotation separation consisting of 64kg Z-200, 33kg diethyl dithiophosphoric acid, 3kg MIBC.
The test flow is shown in FIG. 1, the reagent addition system is shown in Table 1, and the test results are shown in Table 2.
TABLE 1 pharmaceutical addition System
Table 2 open circuit test results
As can be seen from Table 2, the medicament effect in examples 1-3 has significant advantages over on-site medicaments, especially the nickel content in the copper concentrate is significantly reduced by 0.4-0.6 percent, and the total content of the copper concentrate and the nickel concentrate is reduced. The reagent of the invention is more suitable for the separation flotation of the high-ice nickel copper nickel sulphide ore than the on-site reagent.
Example 4 a collector for reducing the mutual copper-nickel content of a high nickel matte flotation separation consisted of 55kg Z-200, 40kg diisopropyldithiophosphoric acid, 5kg MIBC.
Example 5 a collector for reducing the mutual copper-nickel content of a high nickel matte flotation separation consisting of 70kg Z-200, 25kg diisopropyldithiophosphoric acid, 5kg MIBC.
Examples 4 and 5 the test procedure is shown in FIG. 1, the dosing schedule is shown in Table 3, and the test results are shown in Table 4.
TABLE 3 pharmaceutical addition System
Table 4 open circuit test results
As can be seen from table 4, the effect of the agents in examples 4 and 5 also has better selectivity compared to the on-site agent.
Example 6 a collector for reducing the mutual copper-nickel content of a high nickel matte flotation separation consisting of 64kg Z-200, 33kg diisopropyldithiophosphoric acid, 3kg MIBC.
Example 7 a collector for reducing the mutual copper-nickel content of a high nickel matte flotation separation consisting of 64kg Z-200, 33kg dipropyldithiophosphoric acid, 3kg MIBC.
Compared with the medicaments of certain factory in northwest (marked as on-site medicaments) for closed-loop test, the test flow is shown in figure 2, the medicament system is shown in table 5, and the test result is shown in table 6.
TABLE 5 pharmaceutical addition System
TABLE 6 closed circuit test results
As can be seen from table 6, the effect of the example 6 formulation was significantly better than the on-site formulation in the closed loop test. In the flotation separation of the high nickel matte copper and nickel, the copper concentrate is reduced by 0.71 percent compared with the on-site medicament, copper in the nickel concentrate also tends to be reduced, the total copper content of the copper concentrate is reduced by 0.79 percent compared with the on-site medicament, and the total copper content of the medicament in the embodiment 7 is reduced by 0.78 percent compared with the on-site medicament.
Example 8 a collector for reducing the mutual copper-nickel content of a high nickel matte flotation separation consisted of 55kg Z-200, 40kg diisopropyldithiophosphoric acid, 5kg MIBC.
Example 9 a collector for reducing the mutual copper-nickel content of a high nickel matte flotation separation consisting of 70kg Z-200, 25kg diisopropyldithiophosphoric acid, 5kg MIBC.
Compared with the closed-loop test of the medicaments of certain factory in northwest (marked as the on-site medicaments), the test flow is shown in figure 2, the medicament system is shown in table 7, and the test result is shown in table 8.
TABLE 7 pharmaceutical addition System
Table 8 results of the closed-loop test
Table 8 shows that the agents of examples 8 and 9 also show better selective capture capacity than on site for different batches of high nickel matte minerals.
The open circuit test and the closed circuit test prove that the collector for reducing the mutual content of copper and nickel in the high nickel matte flotation separation developed by the invention has obvious effect, and is a collector with higher selectivity suitable for the high nickel matte flotation separation.
Claims (2)
1. A collecting agent for reducing mutual copper and nickel content in high nickel matte flotation separation is characterized in that: the collector consists of the following components in parts by weight: 50-70 parts of O-isopropyl-N-ethylthiocarbamate, 30-40 parts of dialkyl dithiophosphoric acid and 2-10 parts of 4-methyl-2-amyl alcohol; the structural formula of the O-isopropyl-N-ethylthiocarbamate (Z-200) is
The method comprises the steps of carrying out a first treatment on the surface of the The structural general formula of the dialkyl dithiophosphoric acid is as follows: />
Wherein: r is R 1 、R 2 Are all aliphatic hydrocarbon groups.
2. A collector for reducing the mutual copper-nickel content of a high nickel matte flotation separation process according to claim 1, wherein: the dialkyl dithiophosphoric acid refers to one of dipropyl dithiophosphoric acid, diisopropyl dithiophosphoric acid and diethyl dithiophosphoric acid.
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| CN202111026726.9A CN113713967B (en) | 2021-09-02 | 2021-09-02 | Collecting agent for reducing mutual content of copper and nickel in high nickel matte flotation separation |
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| CN113713967B true CN113713967B (en) | 2023-04-25 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1411910A (en) * | 2002-12-09 | 2003-04-23 | 昆明冶研新材料股份有限公司 | Collecting agent for floating cupric sulfide ore |
| CN102806148A (en) * | 2012-09-07 | 2012-12-05 | 西北矿冶研究院 | High-sulfur copper ore collecting agent |
| CN103433147A (en) * | 2013-08-16 | 2013-12-11 | 兰州大学 | Flotation reagent for copper-nickel sulfide ores |
| CN103801461A (en) * | 2014-01-26 | 2014-05-21 | 乌鲁木齐金石徽龙矿业有限公司 | Low-grade copper-nickel ore flotation technology |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1298765A (en) * | 1999-12-08 | 2001-06-13 | 沈阳克岩矿业应用技术有限公司 | Compsoite trapping agent for floatation |
| CN102716809B (en) * | 2012-05-30 | 2013-07-03 | 西北矿冶研究院 | Copper-nickel sulfide ore collecting agent |
| CN106269274A (en) * | 2016-06-20 | 2017-01-04 | 兰州大学 | A kind of medicament for copper nickel sulfide mineral flotation in acidic condition |
| CN109482355B (en) * | 2018-11-16 | 2021-02-26 | 西北矿冶研究院 | Low-grade fine-grained copper ore flotation collector |
| CN110369143B (en) * | 2019-07-10 | 2021-02-09 | 青海省地质矿产测试应用中心 | Low-temperature-resistant composite collecting agent and preparation method and application thereof |
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- 2021-09-02 CN CN202111026726.9A patent/CN113713967B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1411910A (en) * | 2002-12-09 | 2003-04-23 | 昆明冶研新材料股份有限公司 | Collecting agent for floating cupric sulfide ore |
| CN102806148A (en) * | 2012-09-07 | 2012-12-05 | 西北矿冶研究院 | High-sulfur copper ore collecting agent |
| CN103433147A (en) * | 2013-08-16 | 2013-12-11 | 兰州大学 | Flotation reagent for copper-nickel sulfide ores |
| CN103801461A (en) * | 2014-01-26 | 2014-05-21 | 乌鲁木齐金石徽龙矿业有限公司 | Low-grade copper-nickel ore flotation technology |
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