CN102357427A - Combined agent for pyrite flotation - Google Patents
Combined agent for pyrite flotation Download PDFInfo
- Publication number
- CN102357427A CN102357427A CN2011101913988A CN201110191398A CN102357427A CN 102357427 A CN102357427 A CN 102357427A CN 2011101913988 A CN2011101913988 A CN 2011101913988A CN 201110191398 A CN201110191398 A CN 201110191398A CN 102357427 A CN102357427 A CN 102357427A
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- China
- Prior art keywords
- pyrite
- agent
- xanthate
- troilite
- combined agent
- Prior art date
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Abstract
The invention discloses a combined agent for pyrite flotation. The combined agent comprises No.2 oil serving as a foaming agent, and a collecting agent formed by mixing ethyl xanthate and butyl xanthate; and under the conditions that the mass content of iron is 36.7 to 37.4 percent and the mass content of kaolin impurity is 55.6 to 57.3 percent in pyrite, based on 30 to 40 mass percent pyrite pulp, the combined agent contains 1,000 g/t of No.2 oil, 200 to 400 g/t of ethyl xanthate and butyl xanthate mixed in a ratio of 1:1, 100 to 200 g/t of tannic acid, and 200 to 350 g/t of copper sulfate. According to the combined agent for flotation of the pyrite using kaolin as a main impurity, the ore concentrate grade of the pyrite is greatly improved, and the yield of the pyrite is also greatly improved; and meanwhile, the combined agent has the advantages of low equipment corrosion, low adverse effect on the human body and the environment and relatively low cost, and further improves the comprehensive benefit.
Description
Technical field
The present invention relates to the medicament of mineral floating, being specifically related to kaolin is the combination medicament of the pyrite flotation of major impurity.
Background technology
Troilite (also claiming pyrite) to mainly contain with composition be ferrous sulfide (FeS
2), it is a primary raw material of producing sulfuric acid, also is the raw material of ironmaking.Because natural sulphur iron ore grade is low, contains more impurity, so before it is used as raw material, all must carry out ore dressing---remove impurity as much as possible, obtain the higher FeS of purity
2Concentrate.
The pyrite beneficiation method of China's employing at present mainly is a floatation, and part adopts gravity separation method.Wherein, in the ore pulp that natural (or after gravity separation) troilite is processed, add floating agent, in floating agent, include adjustment agent such as foaming agent, collecting agent with the key of floatation ore dressing.Usually, people will be according to the different impurities that contains in the troilite, and the ore dressing purpose is different, selects different foaming agents, collecting agent, activator, inhibitor, and their medicament of combining, improves concentrate grade (FeS to reach
2The percentage of content in concentrate), improve the rate of recovery (FeS
2Concentrate accounts for the mass fraction in total ore deposit after the flotation) purpose.Wherein, again with No. two oil (C
10H
17OH) be foaming agent, with ethyl xanthate (C
2H
5OCSSNa) and butyl xanthate (C
4H
9The combination medicament of the collecting agent that OCSSNa) mixes is the floating agent of most of troilite; Then, again according to the different impurities classification, different ore dressing purposes suitably select to add some adjustment agent.For example, sulfuric acid, lime or sodium carbonate etc. as the adjustment agent.Yet in these adjustment agent, what have is strong to corrosion on Equipment property, and what have has bigger harm to human body, environment, and the cost that has is higher; Especially to kaolin being the troilite (kaolinic mass content is 55.6～57.3%) of major impurity; No matter be aspect the proportioning of its Main Ingredients and Appearance; Or aspect the selection of adjustment agent, also do not have a kind of improve concentrate grade, improve all take into account on the rate of recovery combination medicament preferably.
Summary of the invention
The purpose of this invention is to provide a kind ofly, can improve the combination medicament that is used for pyrite flotation of its concentrate grade and the rate of recovery simultaneously for being the troilite of major impurity with kaolin.
For realizing said purpose; A kind of like this combination medicament that is used for pyrite flotation is provided, and the aspect identical with prior art be, the collecting agent that this combination medicament comprises No. two oil of foaming agent, mixed by ethyl xanthate and butyl xanthate; Its improvements are; The mass content of iron is 36.7～37.4% in troilite, the kaolinic mass content of impurity is under 55.6～57.3% the situation, is that 30～40% troilite ore pulp is reference to process mass concentration, and oily 1000g/t is arranged in this combination medicament No. two; Ethyl xanthate and butyl xanthate by 1: 1 mixed amount to 200～400g/t, tannic acid (C
76H
52O
46) 100～200g/t, copper sulphate (CuSO
4) 200～350g/t.
From scheme, can find out, in the combination medicament of the present invention, except that having comprised the troilite collecting agent, also add tannic acid and copper sulphate adjusts agent.In these adjustment agent, tannic acid is inhibited, and it can suppress impurity kaolin, to stop its come-up; Simultaneously, certain barbotage is arranged again.Copper sulphate has activation, and it can the activation troilite, can generate one deck CuS film at the troilite surface replacement, so make its be prone to the present invention in the collecting agent effect, with further raising collecting effect.The equation of its priming reaction is: Cu
2++ FeS
2→ CuS+Fe
2++ S
0Wherein, elemental sulfur (S
0) existence strengthened the hydrophobicity on troilite surface again, further improved the floatability of troilite in the ore pulp again.
The present invention in this combination medicament ethyl xanthate and butyl xanthate mixed by 1: 1; The selectivity of promptly having given full play to ethyl xanthate is good; Advantages of cheap price; Utilized the good speciality of collecting property of butyl xanthate again fully, they and troilite reaction back generate double xanthate and have strengthened the troilite hydrophobicity.
In sum; The effective hydrophobic come-up of activation valuable mineral troilite of copper sulphate in the combination medicament of the present invention; Tannic acid can suppress the kaolin mineral come-up again, and the collecting performance of mixing xanthate is stronger, compared with prior art; Concentrate grade can improve 5%～11%, and the rate of recovery can improve more than 7%.Simultaneously, only can realize with conventional dosage and method for floating, and owing to copper sulphate and tannic acid have equipment corrosion little, little to the adverse effect of human body, environment, the advantage that cost is relatively low, and then improved comprehensive benefit.
Below in conjunction with the specific embodiment the present invention is further described.
The specific embodiment
The collecting agent that a kind of combination medicament that is used for pyrite flotation, this combination medicament comprise No. two oil of foaming agent, mixed by ethyl xanthate and butyl xanthate.Among the present invention; The mass content of iron is 36.7～37.4% in troilite, the kaolinic mass content of impurity is under 55.6～57.3% the situation; To process mass concentration is that 30～40% troilite ore pulp is reference, and oily 1000g/t is arranged in this combination medicament No. two, by the ethyl xanthate of 1: 1 mixed and butyl xanthate 200～400g/t altogether; Tannic acid 100～200g/t, copper sulphate 200～350g/t.
According to above-mentioned disclosure, and combine aforesaid introduction to beneficial effect of the present invention, those skilled in the art can understand and realize the present invention.So then introduce below to checking of the present invention.
The checking sample ore is to be the troilite of major impurity with kaolin, and through preliminary gravity separation, iron content is 36.7～37.4% rough concentrate.Then, pulverize, levigate, cross 200 mesh sieves (aperture 0.075mm), then be prepared into mass concentration and be 30～40% troilite ore pulp; In capacity is the flotation cell of 1L; Add collecting agent, tannic acid, copper sulphate, No. two oil successively, stir 3min, flotation 15min.
Adopt control methods during checking.Comparative Examples is not for adding the combination medicament of tannic acid and copper sulphate.The checking example is seen table 1 and table 2 (in the table, by the ethyl xanthate and the butyl xanthate of mixing in 1: 1, be called for short " mixing xanthate ", its numerical value is for mixing the gross mass of xanthate).
Table 1
Table 2
From table 1 and table 2, can find out,, only prepare its Main Ingredients and Appearance proportioning according to the present invention to being in the pyrite beneficiation process of major impurity with kaolin; But when not adding combination medicament under tannic acid and the copper sulphate situation and being used for flotation; The concentrate grade after the ore dressing and the concentrate rate of recovery are more or less the same with numerical value well-known to those skilled in the art basically, but are adding tannic acid and copper sulphate; Also promptly used after the combination medicament of the present invention; The concentrate grade and the concentrate rate of recovery of the troilite that obtains through flotation all are improved largely, and concentrate grade can improve 5%～11%, and the concentrate rate of recovery can improve more than 7%.
Claims (1)
1. combination medicament that is used for pyrite flotation; The collecting agent that this combination medicament comprises No. two oil of foaming agent, mixed by ethyl xanthate and butyl xanthate; It is characterized in that the mass content of iron is 36.7～37.4% in said troilite, the kaolinic mass content of impurity is under 55.6～57.3% the situation, is that 30～40% troilite ore pulp is reference to process mass concentration; Oily 1000g/t is arranged in said combination medicament No. two; Ethyl xanthate and butyl xanthate by 1: 1 mixed amount to 200～400g/t, tannic acid 100～200g/t, copper sulphate 200～350g/t.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101913988A CN102357427A (en) | 2011-07-10 | 2011-07-10 | Combined agent for pyrite flotation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101913988A CN102357427A (en) | 2011-07-10 | 2011-07-10 | Combined agent for pyrite flotation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102357427A true CN102357427A (en) | 2012-02-22 |
Family
ID=45582840
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101913988A Pending CN102357427A (en) | 2011-07-10 | 2011-07-10 | Combined agent for pyrite flotation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102357427A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103657864A (en) * | 2013-12-03 | 2014-03-26 | 安徽朝山新材料股份有限公司 | Refractory gold ore collecting agent and preparation method thereof |
| CN103657873A (en) * | 2013-12-03 | 2014-03-26 | 安徽朝山新材料股份有限公司 | Collecting agent for separating gold from auriferous tailing sand and preparation method for collecting agent |
| CN108144744A (en) * | 2016-12-06 | 2018-06-12 | 南京梅山冶金发展有限公司 | The method for floating of sulphur in a kind of association troilite |
Citations (4)
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|---|---|---|---|---|
| WO1992010298A1 (en) * | 1990-12-13 | 1992-06-25 | Cyprus Minerals Company | Method for achieving enhanced copper flotation concentrate grade by oxidation and flotation |
| CN101224441A (en) * | 2007-01-18 | 2008-07-23 | 中国地质科学院郑州矿产综合利用研究所 | Molybdenum-tungsten oxide ore dressing process |
| CN101940975A (en) * | 2010-09-03 | 2011-01-12 | 成都理工大学 | Technology for purifying pyrite type quartz sandstones through floatation and iron removal |
| CN101972711A (en) * | 2010-10-18 | 2011-02-16 | 中蓝连海设计研究院 | Flotation process for charcoal clay-containing pyrite |
-
2011
- 2011-07-10 CN CN2011101913988A patent/CN102357427A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1992010298A1 (en) * | 1990-12-13 | 1992-06-25 | Cyprus Minerals Company | Method for achieving enhanced copper flotation concentrate grade by oxidation and flotation |
| CN101224441A (en) * | 2007-01-18 | 2008-07-23 | 中国地质科学院郑州矿产综合利用研究所 | Molybdenum-tungsten oxide ore dressing process |
| CN101940975A (en) * | 2010-09-03 | 2011-01-12 | 成都理工大学 | Technology for purifying pyrite type quartz sandstones through floatation and iron removal |
| CN101972711A (en) * | 2010-10-18 | 2011-02-16 | 中蓝连海设计研究院 | Flotation process for charcoal clay-containing pyrite |
Non-Patent Citations (1)
| Title |
|---|
| 张惠琼: "云南罗平史家寨硫铁矿的浮选研究", 《昆明工学院学报》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103657864A (en) * | 2013-12-03 | 2014-03-26 | 安徽朝山新材料股份有限公司 | Refractory gold ore collecting agent and preparation method thereof |
| CN103657873A (en) * | 2013-12-03 | 2014-03-26 | 安徽朝山新材料股份有限公司 | Collecting agent for separating gold from auriferous tailing sand and preparation method for collecting agent |
| CN103657864B (en) * | 2013-12-03 | 2016-01-13 | 安徽朝山新材料股份有限公司 | A kind of refractory gold ore collecting agent and preparation method thereof |
| CN103657873B (en) * | 2013-12-03 | 2016-01-20 | 安徽朝山新材料股份有限公司 | A kind of containing capture reagent for gold in golden CHARACTERISTICS OF TAILINGS SAND and preparation method thereof |
| CN108144744A (en) * | 2016-12-06 | 2018-06-12 | 南京梅山冶金发展有限公司 | The method for floating of sulphur in a kind of association troilite |
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Application publication date: 20120222 |