CN113713967A - Collecting agent for reducing copper-nickel content in high nickel matte flotation separation - Google Patents
Collecting agent for reducing copper-nickel content in high nickel matte flotation separation Download PDFInfo
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- CN113713967A CN113713967A CN202111026726.9A CN202111026726A CN113713967A CN 113713967 A CN113713967 A CN 113713967A CN 202111026726 A CN202111026726 A CN 202111026726A CN 113713967 A CN113713967 A CN 113713967A
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- nickel
- copper
- flotation separation
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- matte
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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-ethyl thionocarbamate, 30-40 parts of dialkyl dithiophosphate and 2-10 parts of 4-methyl-2-pentanol. 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 collecting agent 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 a small amount of rare metal sulfide, which is prepared by smelting nickel-copper bulk concentrates through a top-blown furnace, a flash furnace and the like, and mainly comprises metal sulfide ores such as hexagonal nickel sulfide ore, chalcocite, bornite, alloy and the like. Wherein the percentage of the hexagonal nickel sulfide ore is about 65-70%, and the percentage of the chalcocite ore is about 25-30%, and the percentage of the chalcocite ore is about 6%. The high nickel matte separation method mainly comprises a layered smelting method, a combined leaching method and a flotation method. The flotation method is more and more emphasized and widely applied due to simple process and good separation index, and is an effective method for modern high nickel matte separation. However, since wurtzite and chalcocite are two kinds of sulfide minerals with similar flotability, great challenges are brought to the flotation separation of high grade nickel matte. In addition to the optimal adjustment of the flotation process, the development of highly selective collectors of chalcocite is a relatively low cost and effective method.
At present, the high nickel matte flotation separation is carried out in an alkaline environment with the pH =12.5, and the commonly used collectors are mainly xanthates and dithioformates. The xanthate collecting agent has a strong collecting effect on chalcocite, but has relatively strong collecting capability on the hexastrontianite, so that the flotation separation indexes of the two copper-nickel sulfide ores are poor. The thiocarbamate collecting agent, such as Z-200 and the like, has good selectivity on chalcocite but relatively weak collecting capability on chalcocite, has low recovery rate and increases the medicament cost. Therefore, the development of a collector with strong collecting capability and high selectivity on chalcocite is very critical to reducing the content of copper and nickel in the high nickel matte flotation separation.
Disclosure of Invention
The invention aims to solve the technical problem of providing a collector which has strong collecting capability 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 high nickel matte flotation separation is characterized in that: the collector comprises the following components in parts by weight: 50-70 parts of O-isopropyl-N-ethylthionocarbamate (Z-200), 30-40 parts of dialkyl dithiophosphate, and 2-10 parts of 4-methyl-2-pentanol (MIBC).
The structural formula of the O-isopropyl-N-ethyl thionocarbamate (Z-200) is shown in the specification
。
The general structural formula of the dihydrocarbyl dithiophosphoric acid is as follows:
in the formula: r1、R2Are all aliphatic hydrocarbon groups.
The dialkyl dithiophosphate is one of dipropyl dithiophosphate, diisopropyl dithiophosphate and diethyl dithiophosphate.
Compared with the prior art, the invention has the following advantages:
1. in the invention, both the O-isopropyl-N-ethyl thionocarbamate (namely Z-200) and the dialkyl dithiophosphoric acid contain hydrophilic-base sulfur atoms and hydrophobic-base alkyl chains, so that the O-isopropyl-N-ethyl thionocarbamate and the dialkyl dithiophosphoric acid have collecting and foaming characteristics, and have the combined action in the high nickel matte flotation separation, so that the consumption of a foaming agent MIBC can be greatly reduced, and the collecting capacity is strong and the selectivity is high.
2. The three medicaments are combined together to form colorless to yellowish liquid, and the flotation index has good repeatability through a plurality of tests, which shows that the properties of the liquid are relatively stable.
3. The open-circuit and closed-circuit tests prove that the alkaline strip of the combined medicament of the invention with the pH =12.5 is used
Under the condition, the flotation separation of copper and nickel from high nickel matte is obviously reduced.
Drawings
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
FIG. 1 is a flow chart of an open circuit flotation test according to the present invention.
FIG. 2 is a flow chart of a closed circuit flotation test according to the present invention.
Detailed Description
A collector for reducing mutual content of copper and nickel in high nickel matte flotation separation is composed of the following components in parts by weight: 50-70 parts of O-isopropyl-N-ethylthionocarbamate (Z-200), 30-40 parts of dialkyl dithiophosphate, and 2-10 parts of 4-methyl-2-pentanol (MIBC).
Preferably: the paint comprises the following components in parts by weight: 64 parts of O-isopropyl-N-ethylthionocarbamate (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-ethyl thionocarbamate (Z-200) is shown in the specification
。
The general structural formula of the dihydrocarbyl dithiophosphoric acid is:
in the formula: r1、R2Are all aliphatic hydrocarbon groups. One of dipropyl dithiophosphoric acid, diisopropyl dithiophosphoric acid and diethyl dithiophosphoric acid is preferred.
The synthetic route of the dihydrocarbyl dithiophosphoric acid is shown as the following formula:
the specific process is as follows: synthesis and flotation test of the chlorogenate with isobutyl ammonium [ J ] non-ferrous metals: beneficiation section 1986 (4): 29-34.
Example 1 a collector for reducing the copper-nickel content of high grade nickel matte by flotation separation consisting of 64kg Z-200, 33kg dipropyl dithiophosphoric acid, 3kg MIBC.
Example 2 a collector for reducing the copper-nickel content in high nickel matte flotation separation consisting of 64kg Z-200, 33kg diisopropyl dithiophosphoric acid, 3kg MIBC.
Example 3 a collector for reducing the copper-nickel content of high grade nickel matte by flotation separation consisting of 64kg Z-200, 33kg diethyldithiophosphoric acid, 3kg MIBC.
The open circuit experiments of examples 1-3 and the currently used chemical (recorded as a field chemical) in some mine works in northwest of the west were compared, the experimental flow is shown in fig. 1, the chemical addition system is shown in table 1, and the experimental results are shown in table 2.
TABLE 1 drug addition System
TABLE 2 open circuit test results
As can be seen from the table 2, the effect of the agent in the embodiments 1 to 3 has more obvious advantages compared with the on-site agent, particularly, nickel content in copper concentrate is obviously reduced, and the total content of the copper concentrate and the nickel concentrate is reduced by 0.4 to 0.6 percentage point. The reagent of the invention is more suitable for the separation and flotation of the high nickel matte copper nickel sulfide ore than the field reagent.
Example 4 a collector for reducing the copper-nickel content of high grade nickel matte by flotation separation consisting of 55kg Z-200, 40kg diisopropyl dithiophosphoric acid, 5kg MIBC.
Example 5 a collector for reducing the copper-nickel content of high grade nickel matte by flotation separation consisting of 70kg Z-200, 25kg diisopropyl dithiophosphoric acid, 5kg MIBC.
Examples 4 and 5 are shown in FIG. 1, with the drug addition schedule shown in Table 3 and the test results shown in Table 4.
TABLE 3 drug addition System
TABLE 4 open circuit test results
As can be seen from table 4, the agents of examples 4 and 5 also have better selectivity for their effect compared to the on-site agent.
Example 6 a collector for reducing the copper-nickel content in high grade nickel matte flotation separation consisting of 64kg Z-200, 33kg diisopropyl dithiophosphoric acid, 3kg MIBC.
Example 7 a collector for reducing the copper-nickel content of high grade nickel matte by flotation separation consisting of 64kg Z-200, 33kg dipropyl dithiophosphoric acid, 3kg MIBC.
Compared with the closed-loop test of the medicament (recorded as the on-site medicament) in a certain plant in northwest China, the test flow is shown in a figure 2, the medicament system is shown in a table 5, and the test result is shown in a table 6.
TABLE 5 drug addition System
TABLE 6 closed-loop test results
As can be seen from table 6, the example 6 agent is significantly better than the on-site agent in the closed loop test. Example 6 the agent in the flotation separation of high nickel matte copper nickel, the copper concentrate is reduced by 0.71 percent compared with the agent on site, and the copper content in the nickel concentrate is also reduced, the total content of copper and nickel is reduced by 0.79 percent compared with the agent on site, and the total content of the agent in example 7 is also reduced by 0.78 percent compared with the agent on site.
Example 8 a collector for reducing the copper-nickel content of high grade nickel matte by flotation separation consisting of 55kg Z-200, 40kg diisopropyl dithiophosphoric acid, 5kg MIBC.
Example 9 a collector for reducing the copper-nickel content of high grade nickel matte by flotation separation consisting of 70kg Z-200, 25kg diisopropyl dithiophosphoric acid, 5kg MIBC.
Compared with the closed-loop test of the medicament (recorded as the on-site medicament) in a certain plant in northwest China, the test flow is shown in the figure 2, the medicament system is shown in the table 7, and the test result is shown in the table 8.
TABLE 7 drug addition System
TABLE 8 closed-loop test results
Table 8 shows that the agents of examples 8 and 9 also exhibit better selective collection than on-site for different batches of high nickel matte minerals.
Open circuit and closed circuit tests prove that the collector for reducing the mutual content of copper and nickel in the high nickel matte flotation separation has obvious effect and is suitable for the high nickel matte flotation separation.
Claims (4)
1. The utility model provides a reduce high nickel matte flotation separation copper nickel and each other contain collecting agent which characterized in that: the collector comprises the following components in parts by weight: 50-70 parts of O-isopropyl-N-ethyl thionocarbamate, 30-40 parts of dialkyl dithiophosphate and 2-10 parts of 4-methyl-2-pentanol.
2. The collector for reducing the copper-nickel content in high nickel matte flotation separation according to claim 1, wherein: the structural formula of the O-isopropyl-N-ethyl thionocarbamate (Z-200) is shown in the specification
。
3. The collector for reducing the copper-nickel content in high nickel matte flotation separation according to claim 1, wherein: the general structural formula of the dihydrocarbyl dithiophosphoric acid is as follows:
in the formula: r1、R2Are all aliphatic hydrocarbon groups.
4. A collector for reducing the copper-nickel content in high nickel matte flotation separation according to claim 3, wherein: the dialkyl dithiophosphate is one of dipropyl dithiophosphate, diisopropyl dithiophosphate and diethyl dithiophosphate.
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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 CN113713967B (en) | 2023-04-25 |
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Citations (9)
| 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 |
| 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 |
| CN102716809A (en) * | 2012-05-30 | 2012-10-10 | 西北矿冶研究院 | Copper-nickel sulfide ore collecting agent |
| 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 |
| 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 |
| CN109482355A (en) * | 2018-11-16 | 2019-03-19 | 西北矿冶研究院 | Low-grade fine-grained copper ore flotation collector |
| CN110369143A (en) * | 2019-07-10 | 2019-10-25 | 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 |
-
2021
- 2021-09-02 CN CN202111026726.9A patent/CN113713967B/en active Active
Patent Citations (9)
| 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 |
| 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 |
| CN102716809A (en) * | 2012-05-30 | 2012-10-10 | 西北矿冶研究院 | Copper-nickel sulfide ore collecting agent |
| 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 |
| 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 |
| CN109482355A (en) * | 2018-11-16 | 2019-03-19 | 西北矿冶研究院 | Low-grade fine-grained copper ore flotation collector |
| CN110369143A (en) * | 2019-07-10 | 2019-10-25 | 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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