CN102009000B - Method for preparing and using collecting agent for gold, silver and platinum family elements - Google Patents
Method for preparing and using collecting agent for gold, silver and platinum family elements Download PDFInfo
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- CN102009000B CN102009000B CN201010237428.XA CN201010237428A CN102009000B CN 102009000 B CN102009000 B CN 102009000B CN 201010237428 A CN201010237428 A CN 201010237428A CN 102009000 B CN102009000 B CN 102009000B
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Abstract
The invention discloses a method for preparing collecting agent for gold, silver and platinum family elements. The collecting agent can be obtained by adding alkanol in a black powder solution of allylic alkyl sulfur ammonia ester and fully stirring at room temperature to be transparent. The invention also provides a use method of the collecting agent, comprising the following steps of: grinding ore to a proper fineness to ensure that the mass fraction of solids in ore pulp is 20-50 percent; then adding lime or sulfuric acid and adjusting the pH value of the ore pulp to be 8.0-11.0; and finally adding 4-30g/t foaming agent and 2-100g/t collecting agent and foaming the gold, silver and platinum family elements according to the conventional method. The collecting agent has the advantages of favorable selectivity, high collection performance and moderate foaming viscosity and greatly improves the grade and the recovery rate of gold, silver, platinum/palladium metals.
Description
(1) technical field
The present invention relates to a kind of preparation and using method thereof for gold, silver and platinum family element collecting agent.
(2) background technology
Froth flotation is that technology maturation, the efficiency of separation are high, the mineral of applied range processing method for separating, and its principal character is to utilize mineral surfaces wetability difference, at one or more object materials of the selective enrichment of solid-liquid-gas three phase boundary.In foam floating process, conventional collecting agent has xanthate, black powder, thiourethane, xanthogen formate, thiocarbamide etc.
U.S. Pat 3,925,218 disclose oil-soluble dialkyl group thiourethane is dissolved in dialkyl dithiophosphate (be commonly called as black powder, the call black powder in the following text) aqueous solution, and the mixture solution making contributes to improve the flotation recovery rate of copper.Possible cause is that dialkyl group thiourethane is dissolved in the black powder aqueous solution, contributes to its dispersion in ore pulp, thereby improves its collecting performance.
U.S. Pat 5,232,581 disclose oil-soluble pi-allyl alkyl thiourethane is dissolved in the mixture solution that the black powder aqueous solution makes and has cooperative effect, can neutrality under alkali condition from base metal ore flotation gold, silver and platinum group metal, the rate of recovery also makes moderate progress.
Also there is defect in the flotation gold, silver that the above-mentioned molten sub-black powder of pi-allyl alkyl thiourethane makes and the collecting agent of platinum group metal.First, this collecting agent has foaming characteristic, and its foam viscosity is large; Secondly,, because the thiourethane of oily solubility in the aqueous solution of black powder is limited, need result of use together with supplementary catching agent is better, in the time that supplementary catching agent is thiourethane, has equally the problem of rapid diffusion in ore pulp.
(3) summary of the invention
The object of this invention is to provide a kind of selectively good, collecting ability is high, foam viscosity is moderate Compositional type flotation collector and using method thereof.The present invention adopts and add alkanol in the black powder solution of pi-allyl alkyl thiourethane, thereby improves the foam viscosity of collecting agent, can also improve the solubility of thiourethane in black powder solution.In the time adopting thiourethane to do supplementary catching agent, can increase the rate of dispersion of thiourethane in the aqueous solution in addition, the addition of foaming agent while simultaneously reducing floating operation, improves the rate of recovery of gold, silver and platinum group metal, increases economic benefit.
The present invention is Compositional type flotation collector, for reclaiming gold, silver and platinum group metal, is made up of collecting agent black powder, pi-allyl alkylthio carbamate and alcohol.Wherein the molecular formula of black powder is as follows:
The alkyl that in formula (I), R is C2-C8, X is alkali metal (as sodium, potassium etc.) and ammonium.
The molecular formula of pi-allyl alkyl thiourethane is as follows
In formula (II), R is also the alkyl of C2-C8.
Alcohol can be straight chain alkanol, can be also branched alkanol, and molecular formula is as follows:
ROH (III)
The alkyl that in formula (III), R is C3-C9, the preferably alkyl of C4-C7.
The volume ratio of black powder of the present invention and thiourethane is 80: 20 to 20: 80, be preferably 65: 35 to 35: 65, and alcohol accounts for the 0.5-5% of mixture cumulative volume.
Collecting agent preparation method of the present invention is simple, in proportion black powder, thiourethane and alcohol is added in container, is at room temperature stirred well to transparent.
The present invention also provides the using method of this collecting agent.First being ore grinding, ore being ground to suitable fineness with ball mill, thick, thin product is respectively+and 75 μ m mass content are between 14% to 40%, and the mass content of-38 μ m is between 40% to 90%; Then prepare ore pulp, making the solid masses content in ore pulp is 20～50%; Then size mixing, by adding the pH value of lime adjustment ore pulp between 8.0～11.0; Be finally flotation, add foaming agent and above-mentioned collecting agent, conventionally, ore per ton approximately adds the collecting agent of 2～100 grams, and 4～30 grams of foaming agents, according to conventional foam flotation method flotation gold, silver and platinum group metal.
Collecting agent of the present invention can use separately, and result of use is better together with supplementary catching agent (as xanthate, black powder, thiourethane, thiocarbamide, mercaptobenzothiazoler).The consumption of supplementary catching agent is no more than 50% of collecting agent gross mass.
(4) specific embodiment
The present invention is further illustrated by following example, but is not subject to the restriction of these examples.
In container, add black powder solution, then under agitation add pi-allyl alkyl thiourethane, finally add alkanol, it is mixed, obtain product of the present invention.
With ball mill by ore be ground to slightly, thin be respectively+75 μ m mass content of product fineness account for 40%, the mass content of-38 μ m accounts for 90%, coarse grain flotation output concentrate 1, coarse grain flotation tailing returns to former grinding machine regrinding and reconcentration, particulate adopts agitation type flotation machine flotation other, one roughing, once purging selection, triple cleaning, respectively output concentrate 2 and mine tailing.
In example 1-5, select isobutyl Sodium Aerofloat (A), N-pi-allyl-O-ethyl thiourethane (B), n-butanol to make gold in collecting agent flotation sulphide ore, collector dosage 70g/t, regime of agent is in table 1.
Table 1: component and the proportioning of example 1-5 collecting agent
| Embodiment | A: B (volume ratio) | N-butanol (g/t) | Concentrate 2 (grade g/t) | Concentrate 1+2 (rate of recovery %) |
| 1 | 80∶20 | 2 | 12.15 | 86.80 |
| 2 | 60∶40 | 2 | 17.65 | 94.78 |
| 3 | 50∶50 | 2 | 15.60 | 90.55 |
| 4 | 40∶60 | 2 | 16.87 | 92.26 |
| 5 | 20∶80 | 2 | 14.26 | 89.36 |
Table 1 can find out, isobutyl Sodium Aerofloat (A), N-pi-allyl-O-ethyl thiourethane (B) ratio are 60: 40-40: 60 o'clock, grade and the recovering effect of Gold Concentrate under Normal Pressure were better.
In example 6-10, isobutyl Sodium Aerofloat (A): under the condition of N-pi-allyl-O-ethyl thiourethane (B)=60: 40, the addition that changes n-butanol makes gold in collecting agent flotation sulphide ore, collector dosage 70g/t, and regime of agent is in table 2.
Table 2: component and the proportioning of example 6-10 collecting agent
| Embodiment | A: B (volume ratio) | N-butanol (g/t) | Concentrate 2 (grade g/t) | Concentrate 1+2 (rate of recovery %) |
| 6 | 60∶40 | 0 | 13.55 | 89.81 |
| 7 | 60∶40 | 1 | 14.68 | 92.41 |
| 8 | 60∶40 | 2 | 15.76 | 95.02 |
| 9 | 60∶40 | 3 | 15.62 | 94.86 |
| 10 | 60∶40 | 4 | 16.87 | 95.10 |
Table 2 can find out, along with n-butanol adds by amount, grade and the rate of recovery of Gold Concentrate under Normal Pressure progressively improve, and in the time of n-butanol consumption >=2g/t, along with the increase of consumption, grade and the rate of recovery increase not obvious, consider cost, and selecting n-butanol consumption is 2g/t.
In example 11-15, select different black powder (A) and thiourethane (B) to carry out composite, carry out flotation to several containing gold, platinum/palladium ore, collector dosage is 70g/t.Taste raising and rate of recovery result are as table 3 compared with raw ore.
Table 3: component and the proportioning of example 11-15 collecting agent
Table 3 can find out, in the time of flotation gold, silver, platinum, collecting agent of the present invention is in the time using separately and use with supplementary catching agent is collaborative, and concentrate grade and the rate of recovery have all reached reasonable effect.
Claims (1)
1. the preparation method for the collecting agent of gold, silver and platinum family element, raw material is pi-allyl alkyl thiourethane, black powder, alkanol, it is characterized in that: the volume ratio of black powder and pi-allyl alkyl thiourethane is 35: 65 to 20: 80, and alkanol accounts for the 0.5-5% of mixture cumulative volume; In proportion black powder, pi-allyl alkyl thiourethane and alkanol are added in container, be at room temperature stirred well to transparent.
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| CN201010237428.XA CN102009000B (en) | 2010-07-27 | 2010-07-27 | Method for preparing and using collecting agent for gold, silver and platinum family elements |
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| CN201010237428.XA CN102009000B (en) | 2010-07-27 | 2010-07-27 | Method for preparing and using collecting agent for gold, silver and platinum family elements |
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| CN102009000A CN102009000A (en) | 2011-04-13 |
| CN102009000B true CN102009000B (en) | 2014-06-11 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102698876B (en) * | 2012-05-14 | 2013-12-25 | 武汉理工大学 | Method for separating roasted iron core and jade in floatation mode through cation combined collecting agents |
| CN103657865B (en) * | 2013-12-03 | 2016-01-13 | 安徽朝山新材料股份有限公司 | A kind of low-grade gold collecting agent and preparation method thereof |
| CN106513181B (en) * | 2016-11-22 | 2019-11-08 | 广西大学 | A kind of method for floating of sulphide ore gold containing ore |
| CN108906332A (en) * | 2018-07-27 | 2018-11-30 | 广西大学 | A kind of zinc sulfide ore method for floating |
| CN111298983A (en) * | 2020-03-27 | 2020-06-19 | 云南铁峰矿业化工新技术有限公司 | Collecting agent |
| CN114932010B (en) * | 2022-05-30 | 2023-07-28 | 矿冶科技集团有限公司 | Beneficiation treatment method for platinum-palladium ore containing easily-floated magnesium-rich silicate mineral |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5232581A (en) * | 1991-10-11 | 1993-08-03 | American Cyanamid Company | Recovery of platinum group metals and gold by synergistic reaction between allylalkyl thionocarbamates and dithiophosphates |
| CN101259451A (en) * | 2008-04-24 | 2008-09-10 | 中南大学 | Preparation of floating collector |
| CN101605608A (en) * | 2007-02-07 | 2009-12-16 | 氰特技术公司 | Novel dithiocarbamate collectors and the application in beneficiation of mineral ore bodies thereof |
| CN101698160A (en) * | 2009-10-26 | 2010-04-28 | 中南大学 | Sulfide flotation collector and preparation method |
-
2010
- 2010-07-27 CN CN201010237428.XA patent/CN102009000B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5232581A (en) * | 1991-10-11 | 1993-08-03 | American Cyanamid Company | Recovery of platinum group metals and gold by synergistic reaction between allylalkyl thionocarbamates and dithiophosphates |
| CN101605608A (en) * | 2007-02-07 | 2009-12-16 | 氰特技术公司 | Novel dithiocarbamate collectors and the application in beneficiation of mineral ore bodies thereof |
| CN101259451A (en) * | 2008-04-24 | 2008-09-10 | 中南大学 | Preparation of floating collector |
| CN101698160A (en) * | 2009-10-26 | 2010-04-28 | 中南大学 | Sulfide flotation collector and preparation method |
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Inventor after: Xian Jianliang Inventor after: Chen Dianchen Inventor after: Qi Chunming Inventor after: Chang Jiemei Inventor after: Yin Jianzhong Inventor after: Xian Qinxian Inventor after: Wang Qiang Inventor before: Wang Qiang |
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