CN105463203B - A kind of gold mine low toxicity, efficient ore dressing auxiliary agent and preparation method thereof - Google Patents
A kind of gold mine low toxicity, efficient ore dressing auxiliary agent and preparation method thereof Download PDFInfo
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- CN105463203B CN105463203B CN201510900415.9A CN201510900415A CN105463203B CN 105463203 B CN105463203 B CN 105463203B CN 201510900415 A CN201510900415 A CN 201510900415A CN 105463203 B CN105463203 B CN 105463203B
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B11/00—Obtaining noble metals
- C22B11/08—Obtaining noble metals by cyaniding
Abstract
The invention discloses a kind of gold mine low toxicities, efficient ore dressing auxiliary agent and preparation method thereof, are made of the raw material of following parts by weight: 40-60 parts of thiocarbamide, 20-40 parts of potassium ferrocyanide, 10-15 parts of sodium tripolyphosphate, 8-15 parts of ammonium iodide, 10-15 parts of ammonium persulfate, 8-12 parts of sodium peroxide, 20-40 parts of sodium carbonate, 5-10 parts of sodium hydroxide and 4-8 parts of dodecyl sodium sulfate.Gold mine ore dressing auxiliary agent of the invention has many advantages, such as that low toxic and environment-friendly, production cost are low, preparation process is simple, gold refinement rate is high, raw material sources are extensive, has good social benefit, ecological benefits and economic benefit.
Description
Technical field
The present invention relates to noble metal dressing agent, specifically a kind of gold mine low toxicity, efficient ore dressing auxiliary agent and its preparation side
Method.
Background technique
With the continuous improvement of people's living standards, the demand to gold expands rapidly, it is only continuous to find, develop
Using new gold mineral product resource, it is just able to satisfy the demand of today's society.Existing gold mine beneficiation method mainly has flotation, again
Choosing, cyaniding etc..85% or more gold is extracted with cyaniding in the world, is a kind of more mature work that extracts gold from
Skill.Cyaniding has many advantages, such as to mention that gold recovery is high, adaptable to ore, method is easy, can pan, at low cost on the spot.But
Cyaniding has the disadvantage in that cyanide has severe toxicity, to ecological environment, personal safety, agriculture, herd, fishery etc. causes to seriously endanger；
The speed for soaking gold is slow, and leaching process is easy the interference by impurity such as copper, iron, lead, zinc, arsenic and sulphur.
In order to solve the hypertoxic pollution problem of cyanide, in recent years, gold mine dressing agent is expanded largely grind both at home and abroad
Study carefully work, strives to find no cyanogen, nontoxic dressing agent, such as Thiourea-uv Method, thiosulfate technique, hypochlorite method, halogen compounds.
But dressing agent there are high production cost, stability is poor, expensive, gold recovery rate is low the problems such as, these factors restrict it
Be difficult to industrially obtain promotion and application.Therefore, explore low cost, low toxicity, high extraction gold mine dressing agent have compared with
Big research significance.
Summary of the invention
The present invention existing cyaniding gold mine dressing agent there are aiming at the problem that, provide a kind of gold mine low toxicity, efficient ore dressing helps
Agent and preparation method thereof.This gold mine ore dressing auxiliary agent not only pollutes small, at low cost, moreover it is possible to improve the rate of recovery of gold.
In order to achieve the goal above, the present invention is achieved through the following technical solutions:
A kind of gold mine low toxicity, efficient ore dressing auxiliary agent, are made of: 40-60 parts of thiocarbamide, ferrocyanide the raw material of following parts by weight
20-40 parts of potassium, 10-15 parts of sodium tripolyphosphate, 8-15 parts of ammonium iodide, 10-15 parts of ammonium persulfate, 8-12 parts of sodium peroxide, carbonic acid
20-40 parts of sodium, 5-10 parts of sodium hydroxide and 4-8 parts of dodecyl sodium sulfate.
As preferred embodiments of the present invention, above-described gold mine low toxicity, efficient ore dressing auxiliary agent, by the original of following parts by weight
Material composition: 50 parts of thiocarbamide, 35 parts of potassium ferrocyanide, 12 parts of sodium tripolyphosphate, 12 parts of ammonium iodide, 12 parts of ammonium persulfate, peroxidating
10 parts of sodium, 30 parts of sodium carbonate, 8 parts of sodium hydroxide and 6 parts of dodecyl sodium sulfate.
A kind of preparation method of less toxic, the efficient ore dressing auxiliary agent of gold mine, comprising the following steps:
40-60 parts of raw material thiocarbamide, 20-40 parts of potassium ferrocyanide, 10-15 parts of sodium tripolyphosphate, iodate are weighed according to the proportion
8-15 parts of ammonium, 10-15 parts of ammonium persulfate, 8-12 parts of sodium peroxide, 20-40 parts of sodium carbonate, 5-10 parts of sodium hydroxide, respectively will be former
Material addition stirrer for mixing is uniform, obtains mixed material, then mixed material addition reactor is heated to 700-800 DEG C, heat preservation
1-2h is cooled to room temperature, and obtains reaction product, will be crushed in 4-8 parts of addition pulverizers of reaction product and dodecyl sodium sulfate, most
40-60 mesh is crossed afterwards, and ore dressing Additives Products can be obtained.
As preferred embodiments of the present invention: the preparation method of above-described gold mine ore dressing auxiliary agent claims according to raw material proportioning
Take 50 parts of thiocarbamide, 35 parts of potassium ferrocyanide, 12 parts of sodium tripolyphosphate, 12 parts of ammonium iodide, 12 parts of ammonium persulfate, sodium peroxide 10
Part, 30 parts of sodium carbonate, 8 parts of sodium hydroxide, and it is uniform to be separately added into stirrer for mixing, obtain mixed material, then by mixed material
Reactor is added and is heated to 750 DEG C, keeps the temperature 2h, is cooled to room temperature, obtains reaction product, by reaction product and dodecyl sodium sulfate
It is crushed in 6 parts of addition pulverizers, finally crosses 60 meshes, ore dressing Additives Products can be obtained.
Compared with prior art, beneficial effects of the present invention:
1, the substance of gold mine dressing agent of the invention without severe toxicity has low toxic and environment-friendly, using safe, at low cost, preparation
The advantages that simple process, gold refinement rate are high, raw material sources are extensive has good social benefit, ecological benefits and economic effect
Benefit.
2, dressing agent of the invention uses sodium tripolyphosphate energy demineralized water, protects other raw materials, prevents the life of by-product
At, improve its chemical property, and can reduce production cost and improve gold the rate of recovery.
3, gold can be preferably complexed using ammonium iodide in dressing agent of the invention, with common bromine, chlorine halogen ion, complex performance
Stronger, compared with cyanide, iodine is non-toxic medicament, is polluted small.
4, dressing agent of the invention is strong using the oxidisability of ammonium persulfate, and the rate of recovery of gold can be improved.
5, dressing agent of the invention can form thiocarbamide gold complex with gold using thiocarbamide, not only can be reduced the use of cyanide
Amount, reduces the toxicity of dressing agent, moreover it is possible to improve the rate of recovery of gold.
6, the dodecyl sodium sulfate that this dressing agent is added is excellent surfactant, enables dressing agent quickly abundant
Ground soaks gold mine, improves the rate of recovery of gold and shortens extraction time.
7, this dressing agent is applied in gold mine ore dressing, and gold mine per ton only needs that this dressing agent 20-150g, gold refinement rate is added
It can reach 92%, compared with conventional cyaniding, the rate of recovery of gold improves 30% or so, increases the value of gold mine.
Specific embodiment
Below in conjunction with specific embodiment, the present invention is further described, but is not limited to protection scope of the present invention.
Embodiment 1
A kind of gold mine low toxicity, efficient ore dressing auxiliary agent, are made of: 40 parts of thiocarbamide, potassium ferrocyanide the raw material of following parts by weight
25 parts, 10 parts of sodium tripolyphosphate, 10 parts of ammonium iodide, 10 parts of ammonium persulfate, 10 parts of sodium peroxide, 20 parts of sodium carbonate, sodium hydroxide 8
Part and 4 parts of dodecyl sodium sulfate.
Preparation method: 40 parts of raw material thiocarbamide, 25 parts of potassium ferrocyanide, 10 parts of sodium tripolyphosphate, iodate are weighed according to the proportion
10 parts of ammonium, 10 parts of ammonium persulfate, 10 parts of sodium peroxide, 20 parts of sodium carbonate, 8 parts of sodium hydroxide, add raw materials into blender respectively
In be uniformly mixed, obtain mixed material, then mixed material addition reactor is heated to 700 DEG C, keep the temperature 2h, be cooled to room temperature, obtain
Reaction product will crush in 4 parts of addition pulverizers of reaction product and dodecyl sodium sulfate, finally crosses 40 meshes, can be obtained
Ore dressing Additives Products.
Embodiment 2
A kind of gold mine low toxicity, efficient ore dressing auxiliary agent, are made of: 45 parts of thiocarbamide, potassium ferrocyanide the raw material of following parts by weight
20 parts, 12 parts of sodium tripolyphosphate, 8 parts of ammonium iodide, 12 parts of ammonium persulfate, 8 parts of sodium peroxide, 25 parts of sodium carbonate, 6 parts of sodium hydroxide
With 5 parts of dodecyl sodium sulfate.
Preparation method: 45 parts of raw material thiocarbamide, 20 parts of potassium ferrocyanide, 12 parts of sodium tripolyphosphate, iodate are weighed according to the proportion
8 parts of ammonium, 12 parts of ammonium persulfate, 8 parts of sodium peroxide, 25 parts of sodium carbonate, 6 parts of sodium hydroxide, add raw materials into blender respectively
It is uniformly mixed, obtains mixed material, then mixed material addition reactor is heated to 750 DEG C, keep the temperature 1.5h, be cooled to room temperature, obtain
Reaction product will crush in 5 parts of addition pulverizers of reaction product and dodecyl sodium sulfate, finally crosses 40 meshes, can be obtained
Ore dressing Additives Products.
Embodiment 3
A kind of gold mine low toxicity, efficient ore dressing auxiliary agent, are made of: 50 parts of thiocarbamide, potassium ferrocyanide the raw material of following parts by weight
35 parts, 12 parts of sodium tripolyphosphate, 12 parts of ammonium iodide, 12 parts of ammonium persulfate, 10 parts of sodium peroxide, 30 parts of sodium carbonate, sodium hydroxide 8
Part and 6 parts of dodecyl sodium sulfate.
Preparation method: 50 parts of thiocarbamide, 35 parts of potassium ferrocyanide, 12 parts of sodium tripolyphosphate, iodate are weighed according to raw material proportioning
12 parts of ammonium, 12 parts of ammonium persulfate, 10 parts of sodium peroxide, 30 parts of sodium carbonate, 10 parts of sodium hydroxide, and be separately added into blender and mix
It closes uniformly, obtains mixed material, then mixed material addition reactor is heated to 750 DEG C, keep the temperature 2h, be cooled to room temperature, must react
Product will crush in 6 parts of addition pulverizers of reaction product and dodecyl sodium sulfate, finally crosses 60 meshes, ore dressing can be obtained
Additives Products.
Embodiment 4
A kind of gold mine low toxicity, efficient ore dressing auxiliary agent, are made of: 55 parts of thiocarbamide, potassium ferrocyanide the raw material of following parts by weight
40 parts, 15 parts of sodium tripolyphosphate, 8 parts of ammonium iodide, 15 parts of ammonium persulfate, 10 parts of sodium peroxide, 30 parts of sodium carbonate, sodium hydroxide 10
Part and 7 parts of dodecyl sodium sulfate.
Preparation method: 55 parts of thiocarbamide, 40 parts of potassium ferrocyanide, 15 parts of sodium tripolyphosphate, iodate are weighed according to raw material proportioning
8 parts of ammonium, 15 parts of ammonium persulfate, 10 parts of sodium peroxide, 30 parts of sodium carbonate, 10 parts of sodium hydroxide, and be separately added into blender and mix
It closes uniformly, obtains mixed material, then mixed material addition reactor is heated to 800 DEG C, keep the temperature 1h, be cooled to room temperature, must react
Product will crush in 7 parts of addition pulverizers of reaction product and dodecyl sodium sulfate, finally crosses 60 meshes, ore dressing can be obtained
Additives Products.
Embodiment 5
A kind of gold mine low toxicity, efficient ore dressing auxiliary agent, are made of: 60 parts of thiocarbamide, potassium ferrocyanide the raw material of following parts by weight
30 parts, 15 parts of sodium tripolyphosphate, 15 parts of ammonium iodide, 15 parts of ammonium persulfate, 12 parts of sodium peroxide, 40 parts of sodium carbonate, sodium hydroxide 6
Part and 8 parts of dodecyl sodium sulfate.
Preparation method: 60 parts of thiocarbamide, 30 parts of potassium ferrocyanide, 15 parts of sodium tripolyphosphate, iodate are weighed according to raw material proportioning
15 parts of ammonium, 15 parts of ammonium persulfate, 12 parts of sodium peroxide, 40 parts of sodium carbonate, 6 parts of sodium hydroxide, and be separately added into blender and mix
It closes uniformly, obtains mixed material, then mixed material addition reactor is heated to 800 DEG C, keep the temperature 1.5h, be cooled to room temperature, obtain instead
Product is answered, will be crushed in 8 parts of addition pulverizers of reaction product and dodecyl sodium sulfate, 60 meshes is finally crossed, choosing can be obtained
Mine Additives Products.
Application Example 1
The gold ore that 10 tons are 4g/ tons containing gold is weighed, pulverizer is added and is crushed to 200 mesh, is implemented 50g with the water of 20kg
The ore dressing auxiliary agent of example 1 dissolves, then dissolved ore dressing auxiliary agent is mixed with 150kg pulverized limestone and 10 tons of smashed gold mines
It is even, it impregnates for 24 hours, the liquid activated carbon adsorption of leaching refines finally by conventional method, 33.47g gold can be obtained.
Application Example 2
The gold ore that 10 tons are 4g/ tons containing gold is weighed, pulverizer is added and is crushed to 250 mesh, is implemented 80g with the water of 30kg
The ore dressing auxiliary agent of example 2 dissolves, then dissolved ore dressing auxiliary agent is mixed with 180kg pulverized limestone and 10 tons of smashed gold mines
It is even, 18h is impregnated, the liquid activated carbon adsorption of leaching refines finally by conventional method, 34.89g gold can be obtained.
Application Example 3
The gold ore that 10 tons are 4g/ tons containing gold is weighed, pulverizer is added and is crushed to 200 mesh, it is with the water of 50kg that 100g is real
The ore dressing auxiliary agent dissolution of example 3 is applied, then dissolved ore dressing auxiliary agent is mixed with 200kg pulverized limestone and 10 tons of smashed gold mines
It is even, 15h is impregnated, the liquid activated carbon adsorption of leaching refines finally by conventional method, 36.92g gold can be obtained.
Application Example 4
The gold ore that 10 tons are 4g/ tons containing gold is weighed, pulverizer is added and is crushed to 150 mesh, it is with the water of 80kg that 150g is real
The ore dressing auxiliary agent dissolution of example 4 is applied, then dissolved ore dressing auxiliary agent is mixed with 250kg pulverized limestone and 10 tons of smashed gold mines
It is even, 8h is impregnated, the liquid activated carbon adsorption of leaching refines finally by conventional method, 35.77g gold can be obtained.
Application Example 5
The gold ore that 10 tons are 4g/ tons containing gold is weighed, pulverizer is added and is crushed to 200 mesh, is implemented 20g with the water of 20kg
The ore dressing auxiliary agent of example 5 dissolves, then dissolved ore dressing auxiliary agent is mixed with 180kg pulverized limestone and 10 tons of smashed gold mines
It is even, it impregnates for 24 hours, the liquid activated carbon adsorption of leaching refines finally by conventional method, 32.68g gold can be obtained.
When ore dressing auxiliary agent of the invention is used for gold mine ore dressing, the rate of recovery of gold reaches 81.7-92.3%, with conventional cyanogen
Change method is compared, and the rate of recovery improves 30% or so, and the aqueous solution toxicity of the ore dressing auxiliary agent produced is low, and animal is existing without poisoning after drinking
As.
Claims (2)
1. a kind of preparation method of gold mine low toxicity ore dressing auxiliary agent, it is characterised in that: the following steps are included: according to following parts by weight
Than weighing raw material: 40-60 parts of thiocarbamide, 20-40 parts of potassium ferrocyanide, 10-15 parts of sodium tripolyphosphate, 8-15 parts of ammonium iodide, over cure
Sour ammonium 10-15 parts, 8-12 parts of sodium peroxide, 20-40 parts of sodium carbonate, 5-10 parts of sodium hydroxide, add raw materials into blender respectively
In be uniformly mixed, obtain mixed material, then mixed material addition reactor is heated to 700-800 DEG C, keep the temperature 1-2h, be cooled to often
Temperature obtains reaction product, will crush in 4-8 parts of addition pulverizers of reaction product and dodecyl sodium sulfate, finally crosses 40-60 mesh
Sieve, can be obtained ore dressing Additives Products.
2. the preparation method of gold mine low toxicity ore dressing auxiliary agent according to claim 1, it is characterised in that: according to following parts by weight
Than weighing 50 parts of thiocarbamide, 35 parts of potassium ferrocyanide, 12 parts of sodium tripolyphosphate, 12 parts of ammonium iodide, 12 parts of ammonium persulfate, sodium peroxide
10 parts, 30 parts of sodium carbonate, 8 parts of sodium hydroxide, and it is uniform to be separately added into stirrer for mixing, obtain mixed material, then by mixture
Material is added reactor and is heated to 750 DEG C, keeps the temperature 2h, is cooled to room temperature, obtains reaction product, by reaction product and dodecyl sodium sulfonate
It is crushed in 6 parts of addition pulverizers of sodium, finally crosses 60 meshes, ore dressing Additives Products can be obtained.
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| CN105463203B true CN105463203B (en) | 2019-08-30 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107699709A (en) * | 2017-10-20 | 2018-02-16 | 广西南宁晴空万里环保科技有限公司 | Environment-friendly and low-toxicity mineral dressing additive for gold mine and preparation method thereof |
| CN109439923B (en) * | 2018-12-24 | 2021-04-30 | 广西森合高新科技股份有限公司 | Extraction aid capable of improving gold dissolution speed |
| CN110548601A (en) * | 2019-09-26 | 2019-12-10 | 广西森合高新科技股份有限公司 | Gold ore dressing agent, preparation method thereof and gold ore dressing method |
| CN110714120A (en) * | 2019-09-30 | 2020-01-21 | 广西森合高新科技股份有限公司 | Beneficiation auxiliary agent for gold beneficiation |
| CN112501450B (en) * | 2020-10-28 | 2022-07-22 | 黄伟 | Gold extraction agent for treating high-sulfur high-arsenic gold ore and preparation method thereof |
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| CN103805792A (en) * | 2014-02-25 | 2014-05-21 | 黄奇向 | Special gold dissolving agent for gold ore |
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| RU2401311C2 (en) * | 2009-01-11 | 2010-10-10 | Институт химии Дальневосточного отделения Российской академии наук (статус государственного учреждения) (Институт химии ДВО РАН) | Method of extracting gold from concentrate |
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