CN102205277B - Method for applying collecting agent for coke powder flotation - Google Patents
Method for applying collecting agent for coke powder flotation Download PDFInfo
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- CN102205277B CN102205277B CN 201010599883 CN201010599883A CN102205277B CN 102205277 B CN102205277 B CN 102205277B CN 201010599883 CN201010599883 CN 201010599883 CN 201010599883 A CN201010599883 A CN 201010599883A CN 102205277 B CN102205277 B CN 102205277B
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- coke powder
- flotation
- amine
- collecting agent
- organic matter
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Abstract
The invention discloses a method for applying a collecting agent for coke powder flotation, relates to application of an agent (the collecting agent) for coke powder flotation, and belongs to the field of mineral dressing. The invention is characterized by providing the method for applying the collecting agent suitable for coke powder flotation; the collecting agent is a single amine organic matter or a mixture of the amine organic matter and hydrocarbon oil, wherein the amine organic matter is fatty amine or fatty amine polyoxyethylene ether, the hydrocarbon oil is kerosene, diesel oil or fuel oil; and the content of the amine organic matter in the mixture is limited to the solubility of the amine organic matter in the oil, and the mass percent of the amine organic matter is 1 percent to the maximum solubility. During coke powder floatation, the coke powder with the ash content of 18 to 20 percent is floated by using the collecting agent and taking secondary-octyl alcohol as a foaming agent, and the refined coke power with the yield of more than 80 percent and the ash content of about 11 percent can be obtained; and the coke power with high quality and high recovery rate can be obtained by using the collecting agent and the flotation method, and a high-quality coke powder raw material can be provided for high value-added application of the coke powder.
Description
Technical field
The application process of the present invention's one class coke powder flotation collector relates to the application that a class is used for the medicament (collecting agent) of coke powder flotation, belongs to ore dressing field.
Background technology
Coke powder is one of byproduct that produces in coke production and the use procedure, and the industrial use of coke powder mainly is production synthesis gas, preparation active carbon, produces coke, acts as a fuel, prepares high value-added product etc. as batching at present.The height of ash content plays vital effect to the utilization of coke powder in the coke powder.Therefore, the ash content that how to reduce in the coke powder also just becomes a focus of research, but goes back few about the method research report that coke powder is purified.
Patent CN101559402A discloses a kind of method for purifying high-ash coke powder, the method adopts segmented to process, adopt reselecting method to purify to the larger high grey coke powder of grade, then adopt soda acid to remove ash content as the chemical method for the treatment of agent to the coke powder of little grade.After adopting the method that the coke powder that contains ash 31.87% is purified, ash content is reduced to about 17%, and the rate of recovery has obtained preferably effect between 64%-79%.But the chemical Treatment amount is less, and complicated operation is unfavorable for large-scale production, and can be to environment.Main component in the coke powder is carbon, and its character and coal are similar but have specific characteristics.The method of purification of coal has a lot of and technology maturation, and the coal of+0.5mm adopts reselecting method usually, and the coal of-0.5mm mainly adopts method for floating.The granularity of coke powder can change with production method and the source difference of coke, but the coke powder proportion of common-0.5mm is all larger, so flotation should be the important channel that coke powder is purified.Research is found, directly adopts the System of Flotation Reagent of coal, namely uses kerosene to make collecting agent, and secondary octanol is made foaming agent, and the rate of recovery of coke powder is very low during the flotation coke powder.
Summary of the invention
The application process of the present invention's one class coke powder flotation collector, its purpose is for the problems referred to above, screening and composite reagent experiment by a large amount of collecting agents, find a class to be applicable to the collecting agent of coke powder flotation, thereby the present invention disclose the technical scheme that a class is applicable to the collectors application method of coke powder flotation.
The application process of the present invention's one class coke powder flotation collector, it is characterized in that providing a class to be applicable to the application process of the collecting agent of coke powder flotation, collecting agent is independent amine organic matter or the mixture of amine organic matter and hydrocarbon-type oil, wherein the amine organic matter refers to fatty amine or aliphatic amine polyoxyethylene ether, hydrocarbon-type oil refers to kerosene, diesel oil or fuel oil, the organic content of amine is subjected to the restriction of its solubility in oil in the mixture, and mass percent is 1%～maxima solubility.When the coke powder flotation, use above-mentioned collecting agent, take secondary octanol as foaming agent, the flotation ash content is 18～20% coke powder, can obtain productive rate greater than 80%, and ash content is about 11% smart coke powder, and concrete steps are as follows:
I, collecting agent are prepared: when using independent amine organic matter as collecting agent, aliphatic amine polyoxyethylene ether can directly use, and fatty amine is to use with the form of the fatty amine salt aqueous solution, and compound method is: be to prepare burden at 1: 1 to make in molar ratio with fatty amine and hydrochloric acid or acetic acid; The mixture that uses amine organic matter and hydrocarbon-type oil is during as collecting agent, and mixture is direct by the amine organic matter and the hydrocarbon-type oil mix and blend makes, and the organic mass percent of amine is 1%～maxima solubility in the mixture;
II, floatation process: be 60～120g/L according to pulp density at first, coke powder and water is mixed in the flotation cell stirs, then adding collecting agent according to 0.5～3kg/ ton coke powder stirs, adding secondary octanol is that 50～200g/ ton coke powder carries out flotation again, perhaps with the fatty amine salt aqueous solution during as collecting agent flotation coke powder, adopt anti--positive two-stage flotation technique, the gained froth pulp after filtration, oven dry, be the smart coke powder of end product.
The application process of an above-mentioned class coke powder flotation collector, it is characterized in that described anti--positive two-stage flotation technique is: the fatty amine salt and a small amount of foaming agent that add first 0.05-0.1kg/ ton coke powder in ore pulp, remove the part mineral matter of preferential and collecting agent effect, and then add the fatty amine salt of 0.5～3kg/ ton coke powder, adding secondary octanol is 50～200g/ ton coke powder, carries out secondary flotation.
The advantage of the application process of the present invention's one class coke powder flotation collector is: provide a class to be applicable to the application process of the collecting agent of coke powder flotation.Use such collecting agent to adopt method for floating can obtain the smart coke powder of high-quality high-recovery, high-quality coke powder raw material can be provided for the value added applications of coke powder.In existing floatation process, the flotation collector of the aluminosilicate such as fatty amine Chang Zuowei non-ferrous metal oxide ore, quartz, feldspar, mica and sylvite uses with the form of fatty amine salt.Hydrocarbon-type oil is the collecting agent of coal flotation.Research is found, adopts existing flotation dosing system, and during as collecting agent flotation coke powder, flotation effect is all relatively poor with fatty amine salt or hydrocarbon-type oil.The present invention's proposition as collecting agent flotation coke powder, adopts anti--positive two-stage flotation technique can obtain preferably flotation effect with fatty amine salt.As the collecting agent of coke powder flotation, adopt existing floatation process can obtain high-quality smart coke powder with hydrocarbon-type oil and the organic mixture of amine.Aliphatic amine polyoxyethylene ether is widely used as emulsifying agent, wetting agent, dispersant etc., and the present invention proposes the collecting agent that aliphatic amine polyoxyethylene ether can be used as the coke powder flotation, has expanded the application of aliphatic amine polyoxyethylene ether.
The specific embodiment
The flotation experiment is carried out at XFGC-80 type inflation single-trough flotating machine, and the speed of mainshaft is 1800 rev/mins, and the flotation cell volume is 1L.
The mixture of embodiment 1, kerosene and lauryl amine is made collecting agent
Pulp density is 100g/L, and collector dosage is 1.5kg/ ton coke powder, and secondary octanol consumption is 150g/ ton coke powder.Collecting agent is the mixture of kerosene and lauryl amine, and wherein the mass percent of lauryl amine is 0～15%, and the gained flotation results sees Table 1.
Table 1 embodiment 1 coke powder flotation results ()
Pulp density is 100g/L, and secondary octanol consumption is 150g/ ton coke powder, and collecting agent is the mixture of kerosene and lauryl amine, and wherein the mass percent of lauryl amine is 15%.Flotation results under the different collector dosages sees Table 2.
Table 2 embodiment 1 coke powder flotation results (two)
The mixture of embodiment 2, kerosene and lauryl amine APEO is made collecting agent
Pulp density is 100g/L, and collector dosage is 1.5kg/ ton coke powder, and secondary octanol consumption is 150g/ ton coke powder.Collecting agent is the mixture of kerosene and lauryl amine APEO (specification is AC1201), and wherein the mass percent of lauryl amine APEO is 0～20%, and the gained flotation results sees Table 3.
Table 3 embodiment 2 coke powder flotation results ()
Pulp density is 100g/L, secondary octanol consumption is 150g/ ton coke powder, collecting agent is the mixture of kerosene and lauryl amine APEO (specification is AC1201), and wherein the mass percent of lauryl amine APEO is 15%, and the flotation results under the different collector dosages sees Table 4.
Table 4 embodiment 2 coke powder flotation results (two)
Embodiment 3, lauryl amine APEO are made collecting agent
Pulp density is 100g/L, and collecting agent is lauryl amine APEO (specification is AC1201), and secondary octanol consumption is 150g/ ton coke powder.Flotation results under the different collector dosages sees Table 5.
Table 5 embodiment 3 coke powder flotation results
Embodiment 4, dodecylamine hydrochloride are made collecting agent
Pulp density is 100g/L, and collecting agent is dodecylamine hydrochloride, and secondary octanol consumption is 150g/ ton coke powder.Adopt anti--positive two-stage flotation technique, namely add first a small amount of dodecylamine hydrochloride (pressing 0.1kg lauryl amine/ton coke powder at this adds), flotation gained supernatant is froth pulp 1, and then carrying out secondary flotation to wherein adding a certain amount of dodecylamine hydrochloride (adding by 0.9kg lauryl amine/ton coke powder at this), flotation gained froth pulp 2 is smart coke powder.Flotation results sees Table 6.
Table 6 embodiment 4 coke powder flotation results
Claims (2)
1. the application process of a class coke powder flotation collector, it is characterized in that providing a class to be applicable to the application process of the collecting agent of coke powder flotation, collecting agent is independent amine organic matter or the mixture of amine organic matter and hydrocarbon-type oil, wherein the amine organic matter refers to fatty amine or aliphatic amine polyoxyethylene ether, hydrocarbon-type oil refers to kerosene, diesel oil or fuel oil, the organic content of amine is subjected to the restriction of its solubility in oil in the mixture, and mass percent is 1% ~ maxima solubility; When the coke powder flotation, use above-mentioned collecting agent, take secondary octanol as foaming agent, the flotation ash content is 18 ~ 20% coke powder, can obtain productive rate greater than 80%, and ash content is about 11% smart coke powder, and concrete steps are as follows:
I, collecting agent are prepared: when using independent amine organic matter as collecting agent, aliphatic amine polyoxyethylene ether can directly use, and fatty amine is to use with the form of the fatty amine salt aqueous solution, and compound method is: fatty amine and hydrochloric acid or acetic acid are made for 1:1 prepares burden in molar ratio; The mixture that uses amine organic matter and hydrocarbon-type oil is during as collecting agent, and mixture is direct by the amine organic matter and the hydrocarbon-type oil mix and blend makes, and the organic mass percent of amine is 1% ~ maxima solubility in the mixture;
II, floatation process: be 60 ~ 120g/L according to pulp density at first, coke powder and water is mixed in the flotation cell stirs, then add collecting agent according to 0.5 ~ 3kg/ ton coke powder: the mixture of amine organic matter and hydrocarbon-type oil, or independent aliphatic amine polyoxyethylene ether, adding secondary octanol after the stirring is that 50 ~ 200g/ ton coke powder carries out flotation again; Perhaps during as collecting agent flotation coke powder, adopt anti--positive two-stage flotation technique with the fatty amine salt aqueous solution; The gained froth pulp after filtration, oven dry, be the smart coke powder of end product.
2. according to the application process of a class coke powder flotation collector claimed in claim 1, it is characterized in that described anti--positive two-stage flotation technique is: the fatty amine salt and a small amount of foaming agent that add first 0.05-0.1 kg/ ton coke powder in ore pulp, remove the part mineral matter of preferential and collecting agent effect, and then add the fatty amine salt of 0.5 ~ 3kg/ ton coke powder, adding secondary octanol is 50 ~ 200g/ ton coke powder, carries out secondary flotation.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201010599883 CN102205277B (en) | 2010-12-15 | 2010-12-15 | Method for applying collecting agent for coke powder flotation |
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| CN 201010599883 CN102205277B (en) | 2010-12-15 | 2010-12-15 | Method for applying collecting agent for coke powder flotation |
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| CN102205277A CN102205277A (en) | 2011-10-05 |
| CN102205277B true CN102205277B (en) | 2013-02-13 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102533300A (en) * | 2011-12-31 | 2012-07-04 | 山西沁新能源集团股份有限公司 | Clean-type coke byproduct high-ash coke powder industrial purifying device for heat recovery coke furnace |
| CN106040439A (en) * | 2016-05-30 | 2016-10-26 | 西安科技大学 | Semi-coke wet flotation process |
| CN106944262B (en) * | 2017-04-10 | 2019-10-11 | 太原理工大学 | A kind of compound cation-collecting agent and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4278533A (en) * | 1980-02-07 | 1981-07-14 | The Dow Chemical Company | Conditioner for flotation of oxidized coal |
| CN101559402A (en) * | 2009-05-19 | 2009-10-21 | 昆明理工大学 | Method for purifying high-ash coke powder |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5424963B1 (en) * | 1969-11-20 | 1979-08-24 | ||
| JPS53133502A (en) * | 1977-04-27 | 1978-11-21 | Nikko Eng | Method of treating dust containing powder containing metal and coke powder |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4278533A (en) * | 1980-02-07 | 1981-07-14 | The Dow Chemical Company | Conditioner for flotation of oxidized coal |
| CN101559402A (en) * | 2009-05-19 | 2009-10-21 | 昆明理工大学 | Method for purifying high-ash coke powder |
Non-Patent Citations (2)
| Title |
|---|
| JP昭53-133502 1978.11.21 |
| JP昭54-24963B1 1979.08.24 |
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Granted publication date: 20130213 Termination date: 20171215 |