CN113171878A - GH type non-toxic environment-friendly efficient coal dressing collecting agent - Google Patents
GH type non-toxic environment-friendly efficient coal dressing collecting agent Download PDFInfo
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- CN113171878A CN113171878A CN202110451286.5A CN202110451286A CN113171878A CN 113171878 A CN113171878 A CN 113171878A CN 202110451286 A CN202110451286 A CN 202110451286A CN 113171878 A CN113171878 A CN 113171878A
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- coal dressing
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- fatty acid
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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
- B03D1/004—Organic compounds
- B03D1/008—Organic compounds containing oxygen
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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
- B03D2201/02—Collectors
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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
- B03D2203/00—Specified materials treated by the flotation agents; specified applications
- B03D2203/02—Ores
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- Emulsifying, Dispersing, Foam-Producing Or Wetting Agents (AREA)
Abstract
The invention relates to a GH type nontoxic environment-friendly high-efficiency coal dressing collecting agent which is prepared by selecting dearomatized alkane, isomeric hydrocarbon, fatty acid and surfactant which do not contain toxic substances such as aromatic hydrocarbon, cyclic hydrocarbon and the like as raw and auxiliary materials according to different proportions at normal temperature and normal pressure according to the flotation test condition of a coal sample to be dressed; the GH type non-toxic environment-friendly efficient coal dressing collector is characterized by strong adaptability, no color, no peculiar smell, no toxicity, safety and environmental protection.
Description
Technical Field
The invention relates to a GH type nontoxic environment-friendly efficient coal dressing collecting agent, and belongs to the field of collecting agent preparation.
Background
At present, nonpolar hydrocarbon oil is widely used as a collecting agent in coal slime flotation, particularly kerosene, light diesel oil, modified kerosene and the like, and the coal slime flotation contains toxic and harmful substances such as aromatic hydrocarbon and the like and has pungent peculiar smell, so that the air environment of a flotation workshop is poor, and the physical and psychological health of a flotation driver is influenced. In the prior art, the coal dressing collecting agents such as kerosene and light diesel oil which are commonly used contain 10-30% of aromatic hydrocarbon, polyaromatic hydrocarbon and other toxic and harmful substances, have large smell, pollute the environment of a flotation workshop and influence the body health of workers. The flash point of kerosene and light diesel oil is lower than 60 ℃, and the kerosene and light diesel oil belong to flammable liquid and have safety risk.
Along with the development of economy in China, people-oriented reasons are more and more emphasized in China, occupational health of workers is more and more emphasized, and the coal washing industry puts requirements on non-toxicity and environment-friendliness of flotation reagents.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a GH type nontoxic environment-friendly efficient coal dressing collecting agent to solve the problems in the prior art.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
the GH type nontoxic environment-friendly efficient coal dressing collecting agent comprises the following components in percentage by mass: 40-45% of dearomatized alkane, 30-50% of isomeric hydrocarbon, 9-20% of fatty acid and 1-5% of surfactant.
Furthermore, the dearomatized alkane is dearomatized alkane containing C8-C14, such as kerosene and the like which are subjected to dearomatization and hydrogenation treatment in the petrochemical industry, has the aromatic hydrocarbon content of less than 0.2 percent, does not contain toxic components such as aromatic hydrocarbon and the like, and is non-toxic and environment-friendly.
Furthermore, the isomeric hydrocarbon is C7-C16 isomeric hydrocarbon which is subjected to straight chain paraffin removal treatment after the dearomatization kerosene is hydrogenated in the petrochemical industry, does not contain aromatic hydrocarbon, and is non-toxic and environment-friendly.
Furthermore, the fatty acid is vegetable oil such as cottonseed oil, contains saturated fatty acid, oleic acid and linoleic acid, has better selectivity for refining coal slime after being doped, and improves the flotation efficiency.
Furthermore, the surfactant is any one of octyl phenol polyoxyethylene ether and fatty acid methyl ester ethoxylate, and can promote the adsorption of the collecting agent on the surface of coal, improve the selectivity of the collecting agent on coal, promote the coordination of the collecting agent and a foaming agent in flotation operation and the like.
A method for preparing GH type nontoxic environment-friendly efficient coal dressing collecting agent comprises the following steps:
(1) weighing: weighing the raw materials according to the weight percentage of the formula;
(2) the GH type non-toxic environment-friendly efficient coal dressing collector can be obtained by mixing dearomatized alkane, isomeric hydrocarbon and fatty acid, then adding a surfactant and uniformly stirring.
Further, the stirring time in the step (2) is 0.5-2 h.
Compared with the prior art, the invention has the following beneficial effects because the technology is adopted:
the GH type non-toxic environment-friendly efficient coal dressing collecting agent prepared by the invention does not contain toxic substances such as aromatic hydrocarbon, cyclic hydrocarbon and the like, is colorless, free from peculiar smell, non-toxic, safe and environment-friendly;
the invention selects nontoxic materials and adds the surfactant, produces the nontoxic, environment-friendly and efficient collecting agent to replace the common diesel oil and kerosene, improves the working environment of flotation drivers and improves the flotation efficiency.
Detailed Description
The present invention will be further illustrated with reference to the following specific embodiments.
The GH type nontoxic environment-friendly efficient coal dressing collecting agent comprises the following components in percentage by mass: 45% of dearomatized alkane, 35% of isomeric hydrocarbon, 17% of fatty acid and 3% of surfactant.
The dearomatized alkane is dearomatized alkane containing C8-C14, which is obtained by dearomatizing and hydrogenating kerosene and the like in the petrochemical industry, and the aromatic hydrocarbon content is less than 0.2 percent.
The heterogeneous hydrocarbon is obtained by removing straight-chain paraffin after the dearomatized kerosene is hydrogenated in the petrochemical industry, and the content of the heterogeneous hydrocarbon is more than 90 percent.
The fatty acid is cottonseed oil, and contains saturated fatty acid, oleic acid, linoleic acid, and fatty acid more than 60%.
The surfactant is fatty acid methyl ester ethoxylate.
A method for preparing GH type nontoxic environment-friendly efficient coal dressing collecting agent comprises the following steps:
(1) weighing: weighing the raw materials according to the weight percentage of the formula;
(2) mixing the weighed dearomatized alkane, the isomeric hydrocarbon and the fatty acid in a reaction kettle, adding the surfactant, stirring uniformly, stirring for 2 hours at normal pressure and normal temperature, and fully mixing and homogenizing to obtain the dearomatized alkane, the isomeric hydrocarbon and the fatty acid.
The GH type non-toxic environment-friendly flotation test of the collecting agent for efficient coal preparation is carried out:
the test method comprises the following steps:
the method is carried out according to a coal preparation laboratory unit flotation test method (GB 4757-2001);
(II) experimental conditions:
1. coal sampling: the first embodiment is as follows: drying a flotation feed coal sample in a certain coal preparation plant in the Huaibei mining industry;
example two: drying a flotation feed coal sample in a certain coal preparation plant in Huainan;
2. the type of the flotation machine is as follows: XFD-82 volume 1.5 liters;
3. the technical parameters of the flotation machine are as follows: the diameter of the impeller is 60 mm;
inflation quantity: 0.25 cubic meter per square minute;
4. flotation agent
Foaming agent: a GF oil;
collecting agent: GH type collectors, kerosene, diesel;
the oil ratio is 1: 3;
the dosage is 0.6 kg/ton dry coal slime;
5. flotation process conditions are as follows: the feed concentration is 80 g/l; pre-stirring the coal slurry for 3 minutes; collecting the foam for 3 minutes;
6. other flotation conditions: the water quality is tap water, and the temperature is room temperature.
(III) laboratory flotation test results
Flotation tests are carried out by flotation feed of coal preparation plants in Huaibei mining industry and Huainan coal preparation plants, and the coal preparation plants can completely replace kerosene and diesel oil to be used as collecting agents; the GH type non-toxic environment-friendly efficient coal dressing collector does not contain toxic substances such as aromatic hydrocarbon, cyclic hydrocarbon and the like, has a flash point higher than 65 ℃, is free from peculiar smell, and is safe, non-toxic and environment-friendly.
The GH type non-toxic environment-friendly efficient coal dressing collector prepared by the invention does not contain toxic substances such as aromatic hydrocarbon, cyclic hydrocarbon and the like (the content of the aromatic hydrocarbon is less than 0.2%, and the content of mouse oral LD50 is more than 15000mg/kg), and belongs to actual non-toxic materials.
The GH type nontoxic environment-friendly efficient coal dressing collecting agent prepared by the invention improves the emulsification compatibility with a foaming agent due to the addition of the surfactant, enhances the coal collecting capability of the collecting agent, and has good selectivity, the dosage of the agent is 0.3-0.8 kg/ton of coal mud, and the flotation effect is good when the dosage is the same as that of diesel oil and kerosene.
The above-mentioned embodiments are merely preferred embodiments of the present invention, and should not be construed as limiting the present invention, and the scope of the present invention should be defined by the claims, and equivalents including technical features of the claims, i.e., equivalent modifications within the scope of the present invention.
Claims (7)
1. The GH type nontoxic environment-friendly efficient coal dressing collector is characterized by comprising the following components in percentage by mass: 40-45% of dearomatized alkane, 30-50% of isomeric hydrocarbon, 9-20% of fatty acid and 1-5% of surfactant.
2. The GH type non-toxic environment-friendly high-efficiency coal dressing collector according to claim 1, is characterized in that: the dearomatized alkane is dearomatized alkane containing C8-C14.
3. The GH type non-toxic environment-friendly high-efficiency coal dressing collector according to claim 1, is characterized in that: the isomeric hydrocarbon is an isomeric hydrocarbon containing C7-C16.
4. The GH type non-toxic environment-friendly high-efficiency coal dressing collector according to claim 1, is characterized in that: the fatty acid is cottonseed oil.
5. The GH type non-toxic environment-friendly high-efficiency coal dressing collector according to claim 1, is characterized in that: the surfactant is any one of polyoxyethylene octylphenol ether and fatty acid methyl ester ethoxylate.
6. A method for preparing the GH type non-toxic environment-friendly high-efficiency coal separation collector of claims 1-5, which is characterized by comprising the following steps:
(1) weighing: weighing the raw materials according to the weight percentage of the formula;
(2) the GH type non-toxic environment-friendly efficient coal dressing collector can be obtained by mixing dearomatized alkane, isomeric hydrocarbon and fatty acid, adding a surfactant and uniformly stirring.
7. The method of claim 6, wherein: the stirring time in the step (2) is 0.5-2 h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110451286.5A CN113171878A (en) | 2021-04-26 | 2021-04-26 | GH type non-toxic environment-friendly efficient coal dressing collecting agent |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110451286.5A CN113171878A (en) | 2021-04-26 | 2021-04-26 | GH type non-toxic environment-friendly efficient coal dressing collecting agent |
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| CN113171878A true CN113171878A (en) | 2021-07-27 |
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| CN202110451286.5A Pending CN113171878A (en) | 2021-04-26 | 2021-04-26 | GH type non-toxic environment-friendly efficient coal dressing collecting agent |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101385996A (en) * | 2008-09-10 | 2009-03-18 | 中国矿业大学(北京) | Flotation promoter and preparation method thereof |
| CN102319635A (en) * | 2011-09-27 | 2012-01-18 | 高露 | GH coal collector and preparation method thereof |
| CN103203289A (en) * | 2013-05-09 | 2013-07-17 | 煤炭科学研究总院爆破技术研究所 | Flotation promoter of coal slime and method for preparing flotation reagent |
| CN105750092A (en) * | 2016-03-10 | 2016-07-13 | 徐州工程学院 | Novel coal preparation collecting agent and preparation method thereof |
| CN110575910A (en) * | 2019-09-12 | 2019-12-17 | 山东巨野友邦实业有限公司 | Novel environment-friendly mineral separation agent |
| CN110681493A (en) * | 2019-11-21 | 2020-01-14 | 重庆智诚生物质新材料有限责任公司 | Efficient flotation collector for coal |
| WO2020178262A1 (en) * | 2019-03-05 | 2020-09-10 | Basf Se | Mixture of octene hydroformylation by-product and diesel, kereosene or c8-c20 olefines as collectors |
| CN112044604A (en) * | 2020-06-30 | 2020-12-08 | 陕西太古科技有限公司 | Low-sulfur high-efficiency composite flotation agent for coal slime |
-
2021
- 2021-04-26 CN CN202110451286.5A patent/CN113171878A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101385996A (en) * | 2008-09-10 | 2009-03-18 | 中国矿业大学(北京) | Flotation promoter and preparation method thereof |
| CN102319635A (en) * | 2011-09-27 | 2012-01-18 | 高露 | GH coal collector and preparation method thereof |
| CN103203289A (en) * | 2013-05-09 | 2013-07-17 | 煤炭科学研究总院爆破技术研究所 | Flotation promoter of coal slime and method for preparing flotation reagent |
| CN105750092A (en) * | 2016-03-10 | 2016-07-13 | 徐州工程学院 | Novel coal preparation collecting agent and preparation method thereof |
| WO2020178262A1 (en) * | 2019-03-05 | 2020-09-10 | Basf Se | Mixture of octene hydroformylation by-product and diesel, kereosene or c8-c20 olefines as collectors |
| CN110575910A (en) * | 2019-09-12 | 2019-12-17 | 山东巨野友邦实业有限公司 | Novel environment-friendly mineral separation agent |
| CN110681493A (en) * | 2019-11-21 | 2020-01-14 | 重庆智诚生物质新材料有限责任公司 | Efficient flotation collector for coal |
| CN112044604A (en) * | 2020-06-30 | 2020-12-08 | 陕西太古科技有限公司 | Low-sulfur high-efficiency composite flotation agent for coal slime |
Non-Patent Citations (1)
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| 邬伟萧: "复合浮选剂的生产及应用", 《煤炭加工与综合利用》 * |
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Application publication date: 20210727 |
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