CN101962190A - Method for increasing output of white carbon black in vanadium extraction through stone coal roasting and alkali leaching - Google Patents
Method for increasing output of white carbon black in vanadium extraction through stone coal roasting and alkali leaching Download PDFInfo
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- CN101962190A CN101962190A CN2009100439766A CN200910043976A CN101962190A CN 101962190 A CN101962190 A CN 101962190A CN 2009100439766 A CN2009100439766 A CN 2009100439766A CN 200910043976 A CN200910043976 A CN 200910043976A CN 101962190 A CN101962190 A CN 101962190A
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- carbon black
- white carbon
- roasting
- stone coal
- vanadium extraction
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Abstract
The invention discloses a method for increasing the output of white carbon black in vanadium extraction through stone coal roasting and alkali leaching. In order to overcome the defects of low extraction amount of the white carbon black in the vanadium extraction through stone coal blank roasting and alkali leaching and the like, the method comprises the following steps of: adding sodium hydroxide into roasting stone coal powder in the mass ratio of 10-15%, and stirring for 24 h under the pressure of 0.2-1 MPa at the temperature of 120-200 DEG C to obtain water glass; and preparing white carbon black from the obtained water glass by using a conventional method, and extracting vanadium from the filtrate subjected to white carbon black extraction. When used for extracting the white carbon black in the vanadium extraction through stone coal roasting and alkali leaching, the method greatly improves reaction efficiency and quality, and the extraction rate of carbon dioxide in the stone coal reaches 35-40% and is increased by more than 7 times as compared with the prior art.
Description
Technical field
The present invention relates to a kind of method that in bone coal roasting alkaline-leaching and vanadium extraction, improves the white carbon black extracted amount, be specially a kind of method that improves white carbon black output in the bone coal roasting alkaline-leaching and vanadium extraction.
Background technology
Extracting white carbon black in the blank roasting alkaline-leaching and vanadium extraction of bone coal is another patent application of the applicant, and its weak point is that the extraction yield of silicon-dioxide is low in the bone coal, has only 5%, makes the potentiality of bone coal comprehensive utilization be underutilized.
Summary of the invention
Purpose of the present invention will overcome above-mentioned weak point exactly, and a kind of method that improves white carbon black output in the bone coal roasting alkaline-leaching and vanadium extraction is provided, and this method can significantly improve the extracted amount of white carbon black in the blank roasting alkaline-leaching and vanadium extraction of bone coal.
For achieving the above object, technical scheme of the present invention is that the method for white carbon black output is in this raising bone coal roasting alkaline-leaching and vanadium extraction:
A, adding mass ratio 10-15% sodium hydroxide in roasting stone coal powder (general granularity below 20um), is that 0.2-1mpa, temperature are under 120～200 ℃ of conditions at pressure, stirs and keeps 2-4 hour, must water glass;
B, produce white carbon black with the water glass routine of described step a gained.The filtrate and the white carbon black filter cake water lotion that have extracted white carbon black are used for vanadium extraction.
The pressure of described step a is 0.6～0.7mpa, and temperature is 160～170 ℃.
The present invention adds mass ratio 10-15% sodium hydroxide in the roasting stone coal powder in the blank roasting alkaline-leaching and vanadium extraction of bone coal, be that 0.2-1mpa, temperature are under 120～200 ℃ of conditions at pressure, stirs and keeps 2-4 hour, has improved reaction efficiency and quality greatly.Test shows that the extraction rate reached of silicon-dioxide has arrived 35-40% in the bone coal, has improved more than 7 times.
Embodiment
Embodiment 1
The method that the present invention improves white carbon black output in the bone coal roasting alkaline-leaching and vanadium extraction is:
A, adding mass ratio 12% sodium hydroxide in roasting stone coal powder (being that granularity is below 20um), is that 0.6mpa, temperature are under 170 ℃ of conditions at pressure, stir and kept 2-4 hour, water glass;
B, produce white carbon black with the water glass routine of described step a gained.The filtrate and the white carbon black filter cake water lotion that have extracted white carbon black are used for vanadium extraction.
Embodiment 2
A, adding mass ratio 10% sodium hydroxide in the roasting stone coal powder (being that granularity is below 20um, perhaps-160 more than the order), is that 0.2mpa, temperature are under 200 ℃ of conditions at pressure, stir and kept 3 hours, water glass;
B, produce white carbon black with the water glass routine of described step a gained.The filtrate and the white carbon black filter cake water lotion that have extracted white carbon black are used for vanadium extraction.
Embodiment 3
A, adding mass ratio 15% sodium hydroxide in roasting stone coal powder (being that granularity is below 20um), is that 1mpa, temperature are under 180 ℃ of conditions at pressure, stir and kept 2-4 hour, water glass;
B, produce white carbon black with the water glass routine of described step a gained.The filtrate and the white carbon black filter cake water lotion that have extracted white carbon black are used for vanadium extraction.
Embodiment 4
A, adding mass ratio 13% sodium hydroxide in roasting stone coal powder (being that granularity is below 20um), is that 0.7mpa, temperature are under 160 ℃ of conditions at pressure, stir and kept 2-4 hour, water glass;
B, produce white carbon black with the water glass routine of described step a gained.The filtrate and the white carbon black filter cake water lotion that have extracted white carbon black are used for vanadium extraction.
Embodiment 5
A, adding mass ratio 11% sodium hydroxide in roasting stone coal powder (being that granularity is below 20um), is that 0.7mpa, temperature are under 120 ℃ of conditions at pressure, stir and kept 4 hours, water glass;
B, produce white carbon black with the water glass routine of described step a gained.The filtrate and the white carbon black filter cake water lotion that have extracted white carbon black are used for vanadium extraction.
Embodiment 6
A, adding mass ratio 14% sodium hydroxide in roasting stone coal powder (being that granularity is below 20um), is that 1mpa, temperature are under 200 ℃ of conditions at pressure, stir and kept 2 hours, water glass;
B, produce white carbon black with the water glass routine of described step a gained.The filtrate and the white carbon black filter cake water lotion that have extracted white carbon black are used for vanadium extraction.
Claims (2)
1. method that improves white carbon black output in the bone coal roasting alkaline-leaching and vanadium extraction is characterized in that:
A, adding mass ratio 10-15% sodium hydroxide in the roasting stone coal powder, is that 0.2-1mpa, temperature are under 120～200 ℃ of conditions at pressure, stir and kept 2-4 hour, water glass;
B, produce white carbon black with the water glass routine of described step a gained.
2. the method for white carbon black output is characterized in that the pressure of described step a is 0.6～0.7mpa in the raising bone coal roasting vanadium extraction according to claim 1, and temperature is 160～170 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100439766A CN101962190A (en) | 2009-07-25 | 2009-07-25 | Method for increasing output of white carbon black in vanadium extraction through stone coal roasting and alkali leaching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100439766A CN101962190A (en) | 2009-07-25 | 2009-07-25 | Method for increasing output of white carbon black in vanadium extraction through stone coal roasting and alkali leaching |
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| Publication Number | Publication Date |
|---|---|
| CN101962190A true CN101962190A (en) | 2011-02-02 |
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| CN2009100439766A Pending CN101962190A (en) | 2009-07-25 | 2009-07-25 | Method for increasing output of white carbon black in vanadium extraction through stone coal roasting and alkali leaching |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102212708A (en) * | 2011-05-24 | 2011-10-12 | 湖南金大地材料股份有限公司 | Roasting-free wet vanadium extraction process for vanadium-containing mineral |
| CN102337397A (en) * | 2011-10-28 | 2012-02-01 | 中南大学 | High-efficient separation and extraction process of silicon and vanadium in stone coal |
| CN103014379A (en) * | 2012-12-26 | 2013-04-03 | 中南大学 | Process for extracting vanadium from stone coal vanadium mine |
| CN106432803A (en) * | 2016-10-18 | 2017-02-22 | 河南理工大学 | Method for preparing coal slime based carbon-silicon dioxide composite reinforcing agent by using coal slime as raw materials |
| CN111719054A (en) * | 2020-07-27 | 2020-09-29 | 东北大学 | Oxidation, crystal breaking and roasting comprehensive utilization method of stone coal vanadium ore |
-
2009
- 2009-07-25 CN CN2009100439766A patent/CN101962190A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102212708A (en) * | 2011-05-24 | 2011-10-12 | 湖南金大地材料股份有限公司 | Roasting-free wet vanadium extraction process for vanadium-containing mineral |
| CN102337397A (en) * | 2011-10-28 | 2012-02-01 | 中南大学 | High-efficient separation and extraction process of silicon and vanadium in stone coal |
| CN103014379A (en) * | 2012-12-26 | 2013-04-03 | 中南大学 | Process for extracting vanadium from stone coal vanadium mine |
| CN106432803A (en) * | 2016-10-18 | 2017-02-22 | 河南理工大学 | Method for preparing coal slime based carbon-silicon dioxide composite reinforcing agent by using coal slime as raw materials |
| CN111719054A (en) * | 2020-07-27 | 2020-09-29 | 东北大学 | Oxidation, crystal breaking and roasting comprehensive utilization method of stone coal vanadium ore |
| CN111719054B (en) * | 2020-07-27 | 2021-08-31 | 东北大学 | Oxidation, crystal breaking and roasting comprehensive utilization method of stone coal vanadium ore |
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Application publication date: 20110202 |