CN101979332B - Polymeric calcium aluminosilicate coagulant prepared from gold tailings - Google Patents
Polymeric calcium aluminosilicate coagulant prepared from gold tailings Download PDFInfo
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- CN101979332B CN101979332B CN201010297497XA CN201010297497A CN101979332B CN 101979332 B CN101979332 B CN 101979332B CN 201010297497X A CN201010297497X A CN 201010297497XA CN 201010297497 A CN201010297497 A CN 201010297497A CN 101979332 B CN101979332 B CN 101979332B
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- Prior art keywords
- gold tailings
- filtrating
- coagulant
- sodium hydroxide
- coagulating agent
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Abstract
The invention belongs to the technical field of environmental protection, and relates to an environment-friendly polymeric coagulant. The polymeric calcium aluminosilicate coagulant comprises the following raw materials in percentage by mass: 50 to 60 percent of filtrate of gold tailings processed by mixed acid, 30 to 45 percent of filtrate of the gold tailings processed by sodium hydroxide and 5 to 10 percent of oxidizing agent. Because the calcium aluminosilicate coagulant is prepared from the gold tailings serving as a main raw material, the repeated utilization factor of the nonrenewable resource can be improved, the tailings can be changed into things of value, and the active ingredients of the gold tailings are fully utilized. Meanwhile, the preparation process of the coagulant accords with the nationally advocated pollution-free production idea, secondary pollution is not produced while the waste resource is effectively utilized, and the coagulant is favorable for environmental protection and meets the policy of national energy conservation and emission reduction.
Description
Technical field
Patent of the present invention belongs to environmental technology field, is specifically related to utilize gold tailings to be feedstock production polymer aluminium silicate calcium coagulating agent.
Background technology
Gold tailings is the ore waste material that gold ore extracts gold from and discharged behind the concentrate.Gold tailings is mainly by SiO
2, CaO, Al
2O
3And a certain amount of Fe
2O
3, oxide compound such as MgO forms.Mine tailing has become restriction mine sustainable development, the important factor that jeopardizes mining area and peripheral ecotope., Environmental awareness day by day exhausted in resource be enhanced today day by day, the inevitable choice that to open up multiple gold tailings comprehensive Utilization Ways be the mine sustainable development.
At present, the gold tailings comprehensive Utilization Ways mainly comprises two aspects: the one, reclaim, and be about to gold tailings and select again as secondary resource; The 2nd, direct utilization is used as gold tailings usually and produces material of construction.Can know that from the gold tailings chemical ingredients mine tailing is the desirable starting material of synthetic composite coagulant.With the gold tailings is that the feedstock production coagulating agent does not also appear in the newspapers, and therefore, the synthesizing efficient coagulating agent is the new way of gold tailings comprehensive utilization.
The gold tailings utilization of resources has a extensive future, and is the only way of mine existence, development, growth.To gold tailings dissimilar, heterogeneity, carry out the research of preparation coagulating agent comprehensive utilization, the disposal of resources that realizes mine tailing to greatest extent is that mine tailing is handled the new direction of research from now on.
Summary of the invention
For solving the problem of complex utilization of gold tailings, the invention provides a kind of is raw material synthetic polymer aluminium silicate calcium coagulating agent with the gold tailings.
The present invention utilizes gold tailings to prepare polymer aluminium silicate calcium coagulating agent.Gold tailings after the milled processed is at first soaked certain hour in the mixed acid solution that acetic acid and hydrochloric acid are processed, get filtrate for later use; Filter residue soaks in sodium hydroxide solution then, and the heating certain hour obtains filtrating, gets filtrating and regulates the pH value.At a certain temperature, nitration mixture filtrating and sodium hydroxide filtrating are mixed stirring by a certain percentage, add oxygenant, promptly make polymer aluminium silicate calcium coagulating agent after the slaking.Polymer aluminium silicate calcium coagulating agent is nitration mixture filtrating 50-60%, sodium hydroxide filtrating 30-45%, oxygenant 5-10% by each composition quality per-cent.
Utilize gold tailings to prepare polymer aluminium silicate calcium coagulating agent, not only can improve the repeating utilization factor of Nonrenewable resources, and can mine tailing be turned waste into wealth, make full use of himself effective constituent.Simultaneously, the preparation process of coagulating agent meets " cleaner production " theory that country advocates, and when effectively utilizing waste resource, does not produce secondary pollution, helps environment protection, meets the policy of current national energy-saving and emission-reduction.
Embodiment
Embodiment one:
Learn from else's experience gold tailings after levigate is got filtrate for later use after in mixed acid solution (50% acetic acid+50% hydrochloric acid), soaking 8h; Then residual residue is immersed in the sodium hydroxide solution of 2.5mol/L and gets filtrating after the heating, regulate filtrating pH to 2.5.Under 40 ℃, with nitration mixture filtrating and sodium hydroxide filtrate proportional mixing, stirring, add a certain amount of oxygenant, slaking 7d promptly obtains polymer aluminium silicate calcium coagulating agent.Polymer aluminium silicate calcium coagulating agent of the present invention is to be processed by the raw material of following mass percent:
Nitration mixture filtrating 50%
Sodium hydroxide filtrating 45%
Losantin 5%
Acetic acid, hydrochloric acid, sodium hydroxide, Losantin are technical grade, and polymer aluminium silicate calcium coagulating agent is a technical grade liquid.
Embodiment two:
Learn from else's experience gold tailings after levigate is got filtrate for later use after in mixed acid solution (60% acetic acid+40% hydrochloric acid), soaking 9h; Then residual residue is immersed in the sodium hydroxide solution of 2.0mol/L and gets filtrating after the heating, regulate filtrating pH to 2.0.Under 45 ℃, with nitration mixture filtrating and sodium hydroxide filtrate proportional mixing, stirring, add a certain amount of oxygenant, slaking 8d promptly obtains polymer aluminium silicate calcium coagulating agent.Polymer aluminium silicate calcium coagulating agent of the present invention is to be processed by the raw material of following mass percent:
Nitration mixture filtrating 55%
Sodium hydroxide filtrating 38%
Calcium chlorate 7%
Acetic acid, hydrochloric acid, sodium hydroxide, calcium chlorate are technical grade, and polymer aluminium silicate calcium coagulating agent is a technical grade liquid.
Embodiment three:
Learn from else's experience gold tailings after levigate is got filtrate for later use after in mixed acid solution (70% acetic acid+30% hydrochloric acid), soaking 10h; Then residual residue is immersed in the sodium hydroxide solution of 1.8mol/L and gets filtrating after the heating, regulate filtrating pH to 1.8.Under 50 ℃, with nitration mixture filtrating and sodium hydroxide filtrate proportional mixing, stirring, add a certain amount of oxygenant, slaking 9d promptly obtains polymer aluminium silicate calcium coagulating agent.Polymer aluminium silicate calcium coagulating agent of the present invention is to be processed by the raw material of following mass percent:
Nitration mixture filtrating 60%
Sodium hydroxide filtrating 30%
Calcium perchlorate 10%
Acetic acid, hydrochloric acid, sodium hydroxide, calcium perchlorate are technical grade, and polymer aluminium silicate calcium coagulating agent is a technical grade liquid.
Claims (2)
1. one kind is the polymer aluminium silicate calcium coagulating agent of feedstock production with the gold tailings, it is characterized in that: the gold tailings after the milled processed is at first soaked certain hour in the mixed acid solution that acetic acid and hydrochloric acid are processed, get filtrate for later use; Filter residue soaks in sodium hydroxide solution then, and the heating certain hour obtains filtrating; Getting filtrating adjusting pH value is 1.8,2.0 or 2.5, under 40 ℃, 45 ℃ or 50 ℃, nitration mixture filtrating and the mixing by a certain percentage of sodium hydroxide filtrating is stirred; Add oxygenant; Promptly make polymer aluminium silicate calcium coagulating agent after the slaking, wherein, each composition quality per-cent is nitration mixture filtrating 50-60%, sodium hydroxide filtrating 30-45%, oxygenant 5-10%.
2. described according to right 1 is the polymer aluminium silicate calcium coagulating agent of feedstock production with the gold tailings, it is characterized in that: oxygenant is a kind of in Losantin, calcium chlorate, the calcium perchlorate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010297497XA CN101979332B (en) | 2010-09-30 | 2010-09-30 | Polymeric calcium aluminosilicate coagulant prepared from gold tailings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010297497XA CN101979332B (en) | 2010-09-30 | 2010-09-30 | Polymeric calcium aluminosilicate coagulant prepared from gold tailings |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101979332A CN101979332A (en) | 2011-02-23 |
| CN101979332B true CN101979332B (en) | 2012-04-18 |
Family
ID=43599885
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010297497XA Expired - Fee Related CN101979332B (en) | 2010-09-30 | 2010-09-30 | Polymeric calcium aluminosilicate coagulant prepared from gold tailings |
Country Status (1)
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| CN (1) | CN101979332B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102515464B (en) * | 2012-01-09 | 2014-03-05 | 济南大学 | Composite sludge flocculating and dewatering conditioner prepared from gold mine tailings |
| CN102557388B (en) * | 2012-01-09 | 2014-05-07 | 济南大学 | Composite sludge flocculation dehydration conditioner prepared by using red mud |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2740842C (en) * | 2008-10-17 | 2017-12-05 | Cytec Technology Corp. | Use of silicon-containing polymers for improved flocculation of solids in processes for the production of alumina from bauxite |
| CN101759274B (en) * | 2010-01-11 | 2012-01-04 | 长春黄金研究院 | Recycling and harmless treatment method for cyaniding tailing slurry |
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2010
- 2010-09-30 CN CN201010297497XA patent/CN101979332B/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| CN101979332A (en) | 2011-02-23 |
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