CN1994576B - Desulfurization method for high-nickel matte magnetically separated Cu-Fe-Ni alloy - Google Patents
Desulfurization method for high-nickel matte magnetically separated Cu-Fe-Ni alloy Download PDFInfo
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- CN1994576B CN1994576B CN2006101563131A CN200610156313A CN1994576B CN 1994576 B CN1994576 B CN 1994576B CN 2006101563131 A CN2006101563131 A CN 2006101563131A CN 200610156313 A CN200610156313 A CN 200610156313A CN 1994576 B CN1994576 B CN 1994576B
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Abstract
The invention relates to a desulfuration method of high-nickle sulfonium magnetic selected CuFeNi alloy, wherein it is characterized in that: grinding the CuFeNi alloy while the mineral slurry densityis 75-85% until the graininess -74mm is 20%; classifying via classifier, controlling the classify overflow density to 35-55%; entering the level with sulfide into float selection; magnetically selecting fine particles; the classified feedback sand is the final alloy product used in carbonyl nickel production. With said invention, the yield can reach 65%; the product sulfur is reduced from 8. 75%to 2. 11%, while the desulfuration rate can reach 84. 33%.
Description
Technical field
The sulfur method of high-nickel matte magnetically separated Cu-Fe-Ni alloy relates to a kind of processing method of producing raw material in the carbonyl nickel process, and particularly artificial high nickel matte separates the CuFeNi alloy raw material sulfur method that obtains by ore dressing.
Background technology
High nickel matte extracts the thicker CuFeNi alloy of granularity through magnetic separation, and its essential mineral consists of: tripartite sulphur nickel minerals (Ni
3S
2), vitreous copper (Cu
2S) and copper iron-nickel alloy (CuFeNi
8～10), general granularity 56 μ m～1000 μ m, the idiomorphic crystal degree is better, and crystal face is straight, mostly is hexahedron and octahedron, and periphery is straight.Be ductile, easily monomer dissociation.Has ferromagnetism.In the process that adopts CuFeNi alloy production carbonyl nickel, when high nickel matte separated the CuFeNi alloy that obtains as raw material by ore dressing, because there is the part intergrowth in the CuFeNi alloy with sulfide, the alloy sulfur-bearing exceeded standard, and can not satisfy the needs of carbonyl nickel production.At present, effectively remove the method for the sulphur in the CuFeNi alloy, still do not have bibliographical information.
Summary of the invention
The objective of the invention is deficiency, provide a kind of desulfurized effect good CuFeNi deep desulphurization method at above-mentioned prior art existence.
The present invention is achieved by the following technical solutions.
The sulfur method of high-nickel matte magnetically separated Cu-Fe-Ni alloy, it is characterized in that its sweetening process is that the CuFeNi alloy that high nickel matte magnetic separation is extracted is to carry out ore grinding under 75%～85% condition in weight concentration, being milled to granularity is after-74 μ m account for 20%, carry out the grader classification, control classification effluent concentration is 35%～55%, the classification overflow that will contain sulfide enters flotation, is reclaimed by the magnetic separation of nickel ore concentrate particulate again, and the classification sand return is sent into the carbonyl nickel production process as qualified alloy product.
Method of the present invention, the product yield 65% after the desulfurization of high-nickel matte magnetically separated Cu-Fe-Ni alloy process ore grinding.Sulfur content is reduced to 2.11% by 8.75%, and desulfurization degree reaches 84.33%.Desulfurized effect is good, can satisfy the requirement that carbonyl nickel is produced.
The specific embodiment
The sulfur method of the CuFeNi alloy of high nickel matte magnetic separation, is to carry out ore grinding under 75%～85% condition with the CuFeNi alloy of high nickel matte magnetic separation in the ore pulp weight concentration, after being milled to granularity-74 μ m and accounting for 20%, carry out the grader classification, control classification effluent concentration is 35%～55%, make the classification overflow that contains sulfide enter flotation, reclaimed by the magnetic separation of nickel ore concentrate particulate, the classification sand return is sent into the carbonyl nickel production process as qualified alloy product.
Embodiment 1
1, feedstock property
(1) alloying component of the CuFeNi alloy of high nickel matte magnetic separation separation
Table 1 coarse grain alloy composition
(2) mineral determining degree of dissociation table
Table 2 mineral determining degree of dissociation table (%)
| Sample | Monomer | Alloy and nickel sulfide | Alloy and copper sulfide | Alloy and nickel sulfide-copper sulfide |
| Coarse grain alloy | 85 | 2 | 10 | 3 |
The not sulfur-bearing of gold (alloy monomer) that isozygotys after testing, because there is the part intergrowth in alloy with sulfide, the alloy sulfur-bearing is above 8%.Detect and find that simultaneously intergrowth is many more, the alloy sulfur-bearing is high more.
2, adopt the method for ore grinding to carry out the desulfurization processing.
(1) coarse grain alloy desulfurization industrial equipment is selected a MQG1500 * 3000 ball mills and a FLG1000 grader for use;
(2) technological process: adopt a time grinding grading technique flow process, the coarse grain alloy that the extracts single-beam clamshell crane by 5 tons is hung in feed bin, material feeds ball mill by electric vibrating feeder and spiral conveyer, through entering the grader classification behind the ball mill ore grinding, the classification overflow that will contain sulfide enters flotation, reclaimed by the magnetic separation of nickel ore concentrate particulate, the classification sand return is sent into the carbonyl nickel production process as qualified alloy product again.
(3) process conditions: mine-supplying quantity 2t/h, ore milling concentration 75～85%, classification effluent concentration 35～55%.
3, coarse grain alloy desulfurization commercial test results
Table 3 coarse grain alloy desulfurization commercial test results
| Title | Productive rate % | Ni％ | Cu％ | Fe％ | S％ |
| Coarse grain alloy | 100 | 56.60 | 22.79 | 6.86 | 8.75 |
| Product after the desulfurization | 65 | 69.85 | 14.23 | 8.81 | 2.11 |
| Mine tailing after the desulfurization | 35 | 31.99 | 38.69 | 3.24 | 21.08 |
(1) through the product yield 65% after the ore grinding desulfurization.
(2) the product sulfur-bearing is reduced to 2.11% by 8.75%, and desulfurization degree reaches 84.33%.Copper sulphur ratio brings up to 6.74 by 2.6, has reached copper sulphur than the standard that requires greater than 4.
Claims (1)
1. the sulfur method of the CuFeNi alloy of high nickel matte magnetic separation, it is characterized in that its sweetening process is that the CuFeNi alloy that high nickel matte magnetic separation is extracted is to carry out ore grinding under 75%～85% condition in the ore pulp weight concentration, being milled to granularity is after-74 μ m account for 20%, carry out the grader classification, control classification effluent concentration is 35%～55%, the classification overflow that will contain sulfide enters flotation, is reclaimed by the magnetic separation of nickel ore concentrate particulate again, and the classification sand return is sent into the carbonyl nickel production process as qualified alloy product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006101563131A CN1994576B (en) | 2006-12-29 | 2006-12-29 | Desulfurization method for high-nickel matte magnetically separated Cu-Fe-Ni alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006101563131A CN1994576B (en) | 2006-12-29 | 2006-12-29 | Desulfurization method for high-nickel matte magnetically separated Cu-Fe-Ni alloy |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1994576A CN1994576A (en) | 2007-07-11 |
| CN1994576B true CN1994576B (en) | 2010-06-09 |
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| CN2006101563131A Active CN1994576B (en) | 2006-12-29 | 2006-12-29 | Desulfurization method for high-nickel matte magnetically separated Cu-Fe-Ni alloy |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114643133B (en) * | 2022-03-10 | 2023-09-22 | 金川集团股份有限公司 | Beneficiation method for copper sulfide nickel tailings in non-uniform distribution |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4076505A (en) * | 1976-11-22 | 1978-02-28 | Mobil Oil Corporation | Coal desulfurization process |
| CN1403208A (en) * | 2001-09-11 | 2003-03-19 | 中南大学 | Bauxite floating method |
| CN1244408C (en) * | 2004-03-30 | 2006-03-08 | 中国铝业股份有限公司 | Floatation method of desulfurizing and desiliconizing diaspore type bauxite |
| CN1768964A (en) * | 2005-10-19 | 2006-05-10 | 重庆钢铁(集团)有限责任公司 | Floatation method of whole grade ilmenite |
-
2006
- 2006-12-29 CN CN2006101563131A patent/CN1994576B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4076505A (en) * | 1976-11-22 | 1978-02-28 | Mobil Oil Corporation | Coal desulfurization process |
| CN1403208A (en) * | 2001-09-11 | 2003-03-19 | 中南大学 | Bauxite floating method |
| CN1244408C (en) * | 2004-03-30 | 2006-03-08 | 中国铝业股份有限公司 | Floatation method of desulfurizing and desiliconizing diaspore type bauxite |
| CN1768964A (en) * | 2005-10-19 | 2006-05-10 | 重庆钢铁(集团)有限责任公司 | Floatation method of whole grade ilmenite |
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Address after: 737103 Jinchuan Road, Gansu, China, No. 98, No. Patentee after: Jinchuan Group Co., Ltd. Address before: 737103 Jinchuan Road, Gansu, China, No. 98, No. Patentee before: Jinchuan Group Corp., Ltd. |