CN102814236A - Low-grade copper-nickel sulfide ore gangue regulator - Google Patents
Low-grade copper-nickel sulfide ore gangue regulator Download PDFInfo
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- CN102814236A CN102814236A CN2012102743527A CN201210274352A CN102814236A CN 102814236 A CN102814236 A CN 102814236A CN 2012102743527 A CN2012102743527 A CN 2012102743527A CN 201210274352 A CN201210274352 A CN 201210274352A CN 102814236 A CN102814236 A CN 102814236A
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Abstract
The invention relates to a low-grade copper-nickel sulfide ore gangue regulator which is prepared from the following materials in parts by weight: 55-75 parts of water, 10-20 parts of citric acid and 15-25 parts of carboxymethyl cellulose. The conditioning agent can effectively clean oxide polluted and adhered slime on the surface of the nickel mineral, prevent the surface of the nickel mineral from being oxidized, strengthen the adsorption capacity and selectivity of the collecting agent to the mineral, and effectively improve the mineral dressing index of the nickel mineral. Compared with the conventional regulator, the invention can improve the nickel grade in the low-grade copper-nickel sulfide bulk concentrate by 0.5-0.9 percent and improve the nickel recovery rate by 9-13 percent.
Description
Technical field
The present invention relates to the floating agent that non-ferrous metal industry is used for ore dressing, particularly a kind of low-grade copper nickel sulfide mineral gangue adjustment agent.
Background technology
At present, most copper nickel sulfide mineral stone character are complicated, and grade is on the low side, and embedding Bu Tezheng is complicated, and disseminated grain size is trickle, and the gangue mineral argillization is serious in the ore, cause copper nickel thing flotation difficulty.Research both at home and abroad shows that the serpentine sludge is the main cause that influences valuable mineral recovery such as pentlandite in the valuable mineral surface coverage, and the main cause that the sludge covering forms is that static is inhaled mutually.The electric potential test shows; Pentlandite is surperficial electronegative under alkali condition; And serpentine gangue mineral surface presents electropositive, thereby the thin mud of the gangue of positively charged sticks to the flotation that electronegative pentlandite surface has a strong impact on nickel mineral through electrostatic attraction.The surface that the surface micro imaging technique is presented at nickel mineral and copper mineral exists Mg and Si composition, has confirmed that thin mud sticks to the surface of ambrose alloy mineral.
Traditional copper nickel bulk flotation adopts calgon, waterglass etc. to adjust agent more, and the peptizaiton that strengthens sludge improved flotation effect to a certain extent, but the rate of recovery of overall nickel is still very low to reduce the covering effect of sludge to pentlandite.
Summary of the invention
The objective of the invention is deficiency, a kind of low-grade copper nickel sulfide mineral gangue adjustment agent is provided, improved the grade of concentrate when improving the valuable mineral rate of recovery to the prior art existence.
For realizing above-mentioned purpose, the technical scheme that the present invention takes is: a kind of low-grade copper nickel sulfide mineral gangue adjustment agent, form by the material of following weight portion:
55-75 parts in water
10-20 parts of citric acids
15-25 parts of carboxymethyl celluloses.
In above-mentioned adjustment agent, preferred weight part of water is 65 parts, and preferred weight part of citric acid is 15 parts, and preferred weight part of carboxymethyl cellulose is 20 parts.
The preparation method of described a kind of low-grade copper nickel sulfide mineral gangue adjustment agent: at normal temperatures and pressures; Water, citric acid are added in the stirred tank by above-mentioned weight portion; After being stirred to citric acid under the room temperature and fully dissolving; Mixed under the carboxymethyl cellulose that adds above-mentioned weight portion, room temperature 0.5～1 hour, and promptly got said low-grade copper nickel sulfide mineral gangue adjustment agent.
The weight portion scope of the combination of each component of the present invention and each component is confirmed through a large amount of tests.The present invention compared with prior art has the following advantages:
1. can effectively clean the oxide contaminant on nickel mineral surface and the sludge of adhesion, prevent its surface oxidation and strengthen adsorption capacity and the selectivity of collecting agent, imitate the mineral processing index that improves nickel mineral mineral.
2. compare with routine adjustment agent, the present invention can make nickel grade raising 0.5-0.9% in the low-grade copper sulfide nickel bulk concentrate, nickel recovery raising 9-13%.
The specific embodiment
Below principle of the present invention and characteristic are described, institute gives an actual example and only is used to explain the present invention, is not to be used to limit scope of the present invention.
The low-grade copper nickel sulfide mineral that following embodiment uses is as long boundary, Hunan mining company copper nickel stone, through spectrum and this ore raw ore cupric 0.15%, nickeliferous 0.19% of multielement analysis; Or cupric 0.21%, nickeliferous 0.29%, or cupric 0.24%; Nickeliferous 0.35%, all belong to the low-grade copper nickel ores.Through the flowage structure exploratory experiment; The final principle process of confirming to adopt the bulk flotation of copper nickel; At mog is under the 70%-200 purpose condition, adds the present invention and adjusts agent, and copper sulphate is made activator, the amyl group xanthate is made collecting agent, butyl ammonium aerofloat etc. and made the collecting foaming agent; Addition of the present invention: the 1000-1200g/ ton, all the other measure interpolation on demand, through the technological process of roughly selecting twice selected output copper nickel bulk concentrate of once purging selection twice.
In following examples, just the weight portion of raw material changes, and the method for preparing said adjustment agent is constant.Parts by weight of raw materials changes the influence to mineral processing index among the different embodiment in order to describe more intuitively; Select for use single low-grade copper nickel sulfide mineral stone to carry out beneficiation test under the same conditions; List copper, the grade of nickel, the rate of recovery in the copper nickel bulk concentrate respectively, through the performance of the synthetic adjustment agent of the variation reflection different material weight portion of copper nickel bulk concentrate mineral processing index.The rate of recovery of copper, nickel is big, of high grade in the copper nickel bulk concentrate, explains that the performance of said adjustment agent is strong.
The concrete numerical value of embodiment 1 to embodiment 3 is seen table 1.
The preparation method of embodiment 1 to embodiment 3: at normal temperatures and pressures; Water, citric acid are added in the stirred tank by said weight portion; After being stirred to citric acid under the room temperature and fully dissolving; Add the said carboxymethyl cellulose of stating weight portion, mixed under the room temperature 30 minutes or 45 minutes or 1 hour, promptly get the present invention.To described copper nickel is carried out beneficiation test with this adjustment agent then, in table 1, listed test result.
Comparative Examples 1:
Adjust agent with calgon identical low-grade copper nickel minerals is carried out beneficiation test, in table 1, listed test result.
Comparative Examples 2:
Adjust agent with waterglass identical low-grade copper nickel minerals is carried out beneficiation test, in table 1, listed test result.
The test data explanation of each embodiment from table 1; The oxide contaminant on nickel mineral surface and the sludge of adhesion can be effectively cleaned in this adjustment agent; Prevent its surface oxidation and strengthen adsorption capacity and the selectivity of collecting agent, can effectively improve the mineral processing index of nickel mineral mineral.Compare with routine adjustment agent, the present invention can make nickel grade raising 0.5-0.9% in the low-grade copper sulfide nickel bulk concentrate, the about 9-13% of nickel recovery raising.
Table 1
The above is merely preferred embodiment of the present invention, in order to restriction the present invention, all any modifications of within spirit of the present invention and principle, being done, is not equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (3)
1. low-grade copper nickel sulfide mineral gangue adjustment agent, it is characterized in that: its material by following weight portion is formed:
55-75 parts in water
10-20 parts of citric acids
15-25 parts of carboxymethyl celluloses.
2. a kind of low-grade copper nickel sulfide mineral gangue adjustment agent according to claim 1, it is characterized in that: the material by following weight portion is formed:
65 parts in water
15 parts of citric acids
20 parts of carboxymethyl celluloses.
3. the preparation method of a low-grade copper nickel sulfide mineral gangue adjustment agent; It is characterized in that: at normal temperatures and pressures; Water, citric acid are added in the stirred tank by above-mentioned weight portion, after being stirred to citric acid under the room temperature and fully dissolving, add the carboxymethyl cellulose of above-mentioned weight portion; Mixed under the room temperature 0.5～1 hour, and promptly got said low-grade copper nickel sulfide mineral gangue adjustment agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2012102743527A CN102814236A (en) | 2012-08-03 | 2012-08-03 | Low-grade copper-nickel sulfide ore gangue regulator |
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| CN2012102743527A CN102814236A (en) | 2012-08-03 | 2012-08-03 | Low-grade copper-nickel sulfide ore gangue regulator |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112934477A (en) * | 2021-02-22 | 2021-06-11 | 郑州大学 | Bauxite processing method |
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| US5110455A (en) * | 1990-12-13 | 1992-05-05 | Cyprus Minerals Company | Method for achieving enhanced copper flotation concentrate grade by oxidation and flotation |
| CN101549326A (en) * | 2009-05-15 | 2009-10-07 | 江西理工大学 | Technique for floatation separation of hard washing copper zinc sulfuration mine |
| CN101767056A (en) * | 2010-01-28 | 2010-07-07 | 广西大学 | Method for mixed selection and re-purification of cassiterite and sulfide ores |
| CN101844110A (en) * | 2010-06-11 | 2010-09-29 | 中国地质科学院郑州矿产综合利用研究所 | Sulfide ore flotation layered silicate mineral inhibitor and preparation method thereof |
| CN102218376A (en) * | 2011-01-27 | 2011-10-19 | 湖南有色金属研究院 | Method for high-efficiency floatation and separation of molybdenum and nickel and recovery of molybdenum and nickel from high carbon nickel-molybdenum ore to obtain molybdenum concentrate and nickel-molybdenum bulk concentrate |
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2012
- 2012-08-03 CN CN2012102743527A patent/CN102814236A/en active Pending
Patent Citations (5)
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| US5110455A (en) * | 1990-12-13 | 1992-05-05 | Cyprus Minerals Company | Method for achieving enhanced copper flotation concentrate grade by oxidation and flotation |
| CN101549326A (en) * | 2009-05-15 | 2009-10-07 | 江西理工大学 | Technique for floatation separation of hard washing copper zinc sulfuration mine |
| CN101767056A (en) * | 2010-01-28 | 2010-07-07 | 广西大学 | Method for mixed selection and re-purification of cassiterite and sulfide ores |
| CN101844110A (en) * | 2010-06-11 | 2010-09-29 | 中国地质科学院郑州矿产综合利用研究所 | Sulfide ore flotation layered silicate mineral inhibitor and preparation method thereof |
| CN102218376A (en) * | 2011-01-27 | 2011-10-19 | 湖南有色金属研究院 | Method for high-efficiency floatation and separation of molybdenum and nickel and recovery of molybdenum and nickel from high carbon nickel-molybdenum ore to obtain molybdenum concentrate and nickel-molybdenum bulk concentrate |
Non-Patent Citations (2)
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| 《矿冶》 20120630 张亚辉等 "铜镍硫化矿浮选过程中MgO脉石矿物的抑制途径探析" 第21卷, 第2期 * |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112934477A (en) * | 2021-02-22 | 2021-06-11 | 郑州大学 | Bauxite processing method |
| CN112934477B (en) * | 2021-02-22 | 2023-08-25 | 郑州大学 | Bauxite treatment method |
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Application publication date: 20121212 |