CN106622678A - Desulfurization inhibitor for flotation of high-sulfur coal - Google Patents
Desulfurization inhibitor for flotation of high-sulfur coal Download PDFInfo
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- CN106622678A CN106622678A CN201611230980.XA CN201611230980A CN106622678A CN 106622678 A CN106622678 A CN 106622678A CN 201611230980 A CN201611230980 A CN 201611230980A CN 106622678 A CN106622678 A CN 106622678A
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- parts
- flotation
- coal
- active component
- desulfurization
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D1/00—Flotation
- B03D1/001—Flotation agents
- B03D1/018—Mixtures of inorganic and organic compounds
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D2201/00—Specified effects produced by the flotation agents
- B03D2201/06—Depressants
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- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Solid Fuels And Fuel-Associated Substances (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Abstract
The invention relates to a desulfurization inhibitor for flotation of high-sulfur coal and belongs to the technical field of coal washing and dressing. The desulfurization inhibitor comprises, by weight, 30-50 parts of inorganic active component, 20-40 parts of organic active component, 10-20 parts of a promoter and 10-20 parts of organic solvent. The inorganic active component is selected from at least one of sodium hexametaphosphate and polysilicate ferric chloride; the organic active component is pyrogallol; the promoter is selected from at least one of sulfuric acid, hydrochloric acid and nitric acid; the organic solvent is selected from at least one of acetic acid, ethanol, ethyl acetate and acetone. By the adoption of the designed desulfurization inhibitor, flotation desulfurization is carried out on the high-sulfur coal, and then most inorganic sulfur and part of organic sulfur can be removed; in a preferable scheme, the removal rate of the high-sulfur coal is 56.3% or above. The desulfurization inhibitor is reasonable in component design and convenient to apply on a large scale in an industrialized mode.
Description
Technical field
The present invention relates to a kind of Depressing Agent for Flotation of High Sulfur Coals, belongs to coal preparation technical field.
Background technology
Coal accounting is up to more than 70 parts in the supply of China's primary energy, and the burning of inorganic compound in coal is to cause
The main cause of Chinese many urban air pollutions and large area acid rain danger pigtail.Sulphur is modal harmful element in coal.Coal
When directly burning as primary energy, sulphur therein there are about 90 parts and be converted into SO2 entering air, and SO2 is to form acid rain main
Reason, can cause huge damaging effect to environment.China there are about every year 2.5 × 107 tons of SO2 and enter air, wherein 90 parts are come
From burning of coal.
The sulfur content of coal in China typically at 0.38 part～5.32 parts, 1.72 parts of average out to, and sulphur coal accounts for coal
33.33 parts of reserves, account for 16.67 parts of production raw coal.The current marketable coal permissible sulfur of China is commonly less than 1 part.Desulfurization
The important content of one of main target of China's clean coal technology and clean coal utilization plan is become.
Consider that it is most effective to remove its sulphur content as far as possible before coal burning from scientific and reasonable utilization resource and economic angle
With most economical mode, can avoid being made a very bad impression to other follow-up links such as burning and coking.Floatation desulphurization is before burning
One of relatively inexpensive and effective method in the method for desulfurization, and the inhibitor of floatation desulphurization is that to directly affect desulfurized effect good
Bad key factor.
Sulphur in coal generally exists with the state of organic sulfur and inorganic sulfur.Organic sulfur composition structure is extremely complex, mainly
Existence form has mercaptan, thioether, double thioether and thioquinones and thiophene in heterocycle state etc.；Inorganic sulfur is essentially from mineral matter
Various sulfur-containing compounds and a small amount of sulfate.It is a kind of important desulfurization method to be suppressed using desulfurization in coal floatation process.
Existing desulfurization inhibitor, such as quick lime, sodium sulfite, dextrin are only capable of removing part inorganic sulfur, and removal effect
Typically, organic sulfur is acted on without removing substantially.
The content of the invention
The present invention is directed to the deficiencies in the prior art, there is provided one kind can efficient removal inorganic sulfur in sulphur coal floatation process
The desulfurization inhibitor of part organic sulfur can be removed again.
A kind of Depressing Agent for Flotation of High Sulfur Coals of the present invention, by weight meter include following components：
30～50 parts of inorganic active component, it is preferably 35～45 parts, more preferably 38～42 parts；
20～40 parts of organic active component, it is preferably 25～35 parts, more preferably 28～32 parts；
10～20 parts of accelerator, it is preferably 10～18 parts, more preferably 12～15 parts；
10～20 parts of organic solvent, it is preferably 12～20 parts, more preferably 12～20 parts；
At least one of the inorganic active component in calgon, PFSC；
The organic active component is biphenyl 3 phenol；
At least one of the accelerator in sulfuric acid, hydrochloric acid, nitric acid；
At least one of the organic solvent in acetic acid, ethanol, ethyl acetate, acetone.
The component is preferably inorganic active component：Organic active component=1.3～1.5:1 composition.
Its more excellent technical scheme, by weight number scale, the Depressing Agent for Flotation of High Sulfur Coals is made up of following components：
25 parts of calgon, 15 parts of PFSC；
30 parts of biphenyl 3 phenol；
10 parts of sulfuric acid；
10 parts of ethanol.
A kind of application of Depressing Agent for Flotation of High Sulfur Coals of the present invention；When the desulfurization inhibitor is used for coal flotation, press
Following step is carried out：
With concentration as 20～400g/L, the coal slurry of preferably 100～300g/L, more preferably 200g/L is raw material,
Add toward raw material (i.e. once thick according to " thick four essence three is swept " after collecting agent, foaming agent and Depressing Agent for Flotation of High Sulfur Coals
Choosing, four times are selected, scan for three times) flotation flowsheet flotation, obtain head coal product；The desulfurization inhibitor is added by raw material per ton
200～1000g, the ratio of the ratio addition for being preferably 300～800g, more preferably 500g are added.
Using the desulfurization inhibitor designed by the present invention, sulphur coal is carried out after floatation desulphurization, most nothings can be removed
Machine sulphur and part organic sulfur, in preferred version, make sulphur coal sulfur removal rate be more than 56.3%.Inventive desulfurization inhibitor component
It is reasonable in design, it is easy to extensive commercial application.
Specific embodiment
Below in conjunction with embodiments of the invention, technical scheme is clearly and completely described, it is clear that
Described embodiment is only a part of embodiment of the invention, rather than the embodiment of whole.Based on the enforcement in the present invention
Example, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made is belonged to
The scope of protection of the invention.
Embodiment 1
Chongqing sulphur coal property is：Ash content 28%, full sulphur 3.4% (wherein inorganic sulfur is 2.5%, organic sulfur 0.9%),
Using the grey technique of floatation desulphurization drop of " thick four essence three is swept ", coal-water fluid concentration is 200g/L, and collecting agent (n-dodecane) consumption is
800g/t, foaming agent (sec-octyl alcohol) consumption is 100g/t, is counted by weight using inhibitor, and component is as follows：
25 parts of calgon, 15 parts of PFSC；
30 parts of biphenyl 3 phenol；
10 parts of sulfuric acid；
10 parts of ethanol；
Consumption is 600g/t, obtains ash content for 5.1%, full sulphur be 0.9% (wherein inorganic sulfur 0.2%, organic sulfur
0.7%) qualified cleaned coal product.
Embodiment 2
Sichuan sulphur coal property is：Ash content 33%, full sulphur 4.2% (wherein inorganic sulfur is 3.6%, organic sulfur 0.6%),
Using the grey technique of floatation desulphurization drop of " thick four essence three is swept ", coal-water fluid concentration is 200g/L, and collecting agent (n-dodecane) consumption is
800g/t, foaming agent (sec-octyl alcohol) consumption is 100g/t, is counted by weight using inhibitor, and component is as follows：
35 parts of calgon；
20 parts of biphenyl 3 phenol；
10 parts of sulfuric acid；
10 parts of ethanol；
Consumption is 700g/t, obtains ash content for 6.2%, full sulphur be 0.8% (wherein inorganic sulfur 0.3%, organic sulfur
0.5%) qualified cleaned coal product.
Embodiment 3
Yunnan sulphur coal property is：Ash content 35%, full sulphur 3.2% (wherein inorganic sulfur is 3.0%, organic sulfur 0.2%),
Using the grey technique of floatation desulphurization drop of " thick four essence three is swept ", coal-water fluid concentration is 250g/L, and collecting agent (kerosene) consumption is 800g/
T, foaming agent (2# is oily) consumption is 100g/t, is counted by weight using inhibitor, and component is as follows：
30 parts of PFSC；
40 parts of biphenyl 3 phenol；
10 parts of sulfuric acid；
10 parts of ethanol；
Consumption is 450g/t, obtains ash content for 4.7%, full sulphur be 0.5% (wherein inorganic sulfur 0.4%, organic sulfur
0.1%) qualified cleaned coal product.
The above, the only specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, any
Those familiar with the art the invention discloses technical scope in, change or replacement can be readily occurred in, all should contain
Cover within protection scope of the present invention.Therefore, protection scope of the present invention described should be defined by scope of the claims.
Claims (4)
1. a kind of Depressing Agent for Flotation of High Sulfur Coals, it is characterised in that：By weight meter includes following components：
30～50 parts of inorganic active component；
20～40 parts of organic active component；
10～20 parts of accelerator；
10～20 parts of organic solvent；
At least one of the inorganic active component in calgon, PFSC；
The organic active component is biphenyl 3 phenol；
At least one of the accelerator in sulfuric acid, hydrochloric acid, nitric acid；
At least one of the organic solvent in acetic acid, ethanol, ethyl acetate, acetone.
2. a kind of Depressing Agent for Flotation of High Sulfur Coals according to claim 1, it is characterised in that：The constituent mass ratio is
Inorganic active component：Organic active component=1.3～1.5:1.
3. a kind of Depressing Agent for Flotation of High Sulfur Coals according to claim 1, it is characterised in that：Number scale by weight, institute
State Depressing Agent for Flotation of High Sulfur Coals to be made up of following components：
25 parts of calgon, 15 parts of PFSC；
30 parts of biphenyl 3 phenol；
10 parts of sulfuric acid；
10 parts of ethanol.
4. a kind of Depressing Agent for Flotation of High Sulfur Coals according to any one of claims 1 to 3, it is characterised in that：The height
When sulphur coal flotation desulfurization inhibitor is used for coal flotation, carry out in the steps below：
With coal slurry that concentration is 20～400g/L as raw material, collecting agent, foaming agent and sulphur coal floatation desulphurization are added toward raw material
According to the flotation flowsheet flotation of " thick four essence three is swept " (i.e. one roughing, four times selected, scans for three times) after inhibitor, essence is obtained
Product of coal；The desulfurization inhibitor adds the ratio of 200～1000g to add in raw material per ton.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611230980.XA CN106622678A (en) | 2016-12-28 | 2016-12-28 | Desulfurization inhibitor for flotation of high-sulfur coal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611230980.XA CN106622678A (en) | 2016-12-28 | 2016-12-28 | Desulfurization inhibitor for flotation of high-sulfur coal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106622678A true CN106622678A (en) | 2017-05-10 |
Family
ID=58831697
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611230980.XA Withdrawn CN106622678A (en) | 2016-12-28 | 2016-12-28 | Desulfurization inhibitor for flotation of high-sulfur coal |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108636616A (en) * | 2018-05-22 | 2018-10-12 | 中南大学 | Inhibit the inhibitor and its application method of vulcanization M in a kind of floatation process |
| CN111715411A (en) * | 2020-07-01 | 2020-09-29 | 中南大学 | Beneficiation method for high-sulfur lead-zinc ore |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1395999A (en) * | 2002-04-15 | 2003-02-12 | 苏州大学 | Desulfurizing binary Fe-alkali catalyst |
| RU2270725C1 (en) * | 2004-06-07 | 2006-02-27 | Сергей Анатольевич Щелкунов | Composition for flotation of minerals |
| CN101003390A (en) * | 2006-01-20 | 2007-07-25 | 天津科技大学 | Method for preparing flocculant of ferric chloride of polysilicon acid |
| CN102489406A (en) * | 2011-11-22 | 2012-06-13 | 中国铝业股份有限公司 | Method for treating sulfur bauxite |
| CN105331421A (en) * | 2015-12-02 | 2016-02-17 | 深圳市瑞成世代实业有限公司 | Coal flotation and desulfuration combined inhibitor and application thereof |
| CN105948204A (en) * | 2016-06-21 | 2016-09-21 | 江苏国松环境科技开发有限公司 | Treatment agent of wastewater rich in arsenic ions and heavy metal ions and preparation method |
-
2016
- 2016-12-28 CN CN201611230980.XA patent/CN106622678A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1395999A (en) * | 2002-04-15 | 2003-02-12 | 苏州大学 | Desulfurizing binary Fe-alkali catalyst |
| RU2270725C1 (en) * | 2004-06-07 | 2006-02-27 | Сергей Анатольевич Щелкунов | Composition for flotation of minerals |
| CN101003390A (en) * | 2006-01-20 | 2007-07-25 | 天津科技大学 | Method for preparing flocculant of ferric chloride of polysilicon acid |
| CN102489406A (en) * | 2011-11-22 | 2012-06-13 | 中国铝业股份有限公司 | Method for treating sulfur bauxite |
| CN105331421A (en) * | 2015-12-02 | 2016-02-17 | 深圳市瑞成世代实业有限公司 | Coal flotation and desulfuration combined inhibitor and application thereof |
| CN105948204A (en) * | 2016-06-21 | 2016-09-21 | 江苏国松环境科技开发有限公司 | Treatment agent of wastewater rich in arsenic ions and heavy metal ions and preparation method |
Non-Patent Citations (3)
| Title |
|---|
| 叶菲菲: "多酚（醌）类化合物的性质及脱硫机理的探讨", 《化肥工业》 * |
| 夏建华等: "还原剂法强化煤浮选脱硫的研究", 《化工时刊》 * |
| 袁丁杰: "聚硅酸氯化铁絮凝剂", 《重庆环境科学》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108636616A (en) * | 2018-05-22 | 2018-10-12 | 中南大学 | Inhibit the inhibitor and its application method of vulcanization M in a kind of floatation process |
| CN108636616B (en) * | 2018-05-22 | 2019-10-08 | 中南大学 | Inhibit the inhibitor and its application method of vulcanization M in a kind of floatation process |
| CN111715411A (en) * | 2020-07-01 | 2020-09-29 | 中南大学 | Beneficiation method for high-sulfur lead-zinc ore |
| CN111715411B (en) * | 2020-07-01 | 2021-08-27 | 中南大学 | Beneficiation method for high-sulfur lead-zinc ore |
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20170510 |
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