CN106044820A - Method for producing strontium carbonate from carbon dioxide in exhaust gas - Google Patents
Method for producing strontium carbonate from carbon dioxide in exhaust gas Download PDFInfo
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- CN106044820A CN106044820A CN201610185283.0A CN201610185283A CN106044820A CN 106044820 A CN106044820 A CN 106044820A CN 201610185283 A CN201610185283 A CN 201610185283A CN 106044820 A CN106044820 A CN 106044820A
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- Prior art keywords
- leaching
- strontium
- carbon dioxide
- strontium carbonate
- waste gas
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F11/00—Compounds of calcium, strontium, or barium
- C01F11/18—Carbonates
- C01F11/186—Strontium or barium carbonate
- C01F11/187—Strontium carbonate
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Inorganic Chemistry (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
- Carbon And Carbon Compounds (AREA)
Abstract
The invention provides a method for producing strontium carbonate from carbon dioxide in exhaust gas. The method comprises the following steps: S1, preparation of crude strontium; S2, leaching of crude strontium; S3, purification of CO2 from exhaust gas; S4, carbonization of a leaching solution; and S5, desulphurization of strontium carbonate slurry. The method has the beneficial effects that since CO2 is extracted and purified from tail gas produced in calcination and then applied to production strontium of carbonate, resources are effectively utilized and product cost is greatly reduced; the method has the characteristics of simple operation and easiness in controlling; the method has low cost and strong market competitiveness; and the whole production process is realized in a closed cycle, has high yield, reduces emission of carbon dioxide in China and turns the waste into the valuable.
Description
Technical field
The present invention relates to strontium carbonate preparing technical field, particularly relate to a kind of carbon dioxide production carbonic acid utilized in waste gas
The method of strontium.
Background technology
Celestite ore and coal are pressed in Ore carbon content in content of strontium and coal and uses suitable pit coal charge ratio dispensing, will join
Expecting reduction roasting under the high temperature conditions, the SrSO4 in Ore is reduced into the SrS of solubility.Grog water extraction, SrS dissolves in
In water, after repeatedly leaching remove impurity, SrS is precipitated as SrCO3 with CO2 by filtrate again.React as follows:
Sr(OH)2+CO2→SrCO3↓+H2O
Sr(HS)2+CO2+H2O→SrCO3↓+H2S↑
SrS+CO2+H2O→SrCO3↓+H2S↑
In conventional production, producing of CO2 is the requisite basic link of strontium carbonate industry producer, great majority
If be limestone and coarse coal are mixed by a certain percentage after limekiln, there is following reaction at 900-1200 degree Celsius, raw
Become carbon dioxide and calcium oxide.
CaCO3→CaO+CO2↑-Q
C+O2→CO2↑+Q
This kind of running cost height, is difficult to operation, is easily generated waste material.
Summary of the invention
A kind of method that the invention provides carbon dioxide production strontium carbonate utilized in waste gas, uses in calcination process and produces
Raw tail gas purifies out CO2, is subsequently used for the production of strontium carbonate, and this arrangement makes resource to be effectively utilized, and product becomes
Originally it is greatly lowered, and is had simple to operate, it is easy to the feature of control.Low cost, the market competitiveness is strong.Whole production
Process closed cycle, yield is high, reduces the discharge of my carbon dioxide, turns waste into wealth.
For solving above-mentioned technical problem, the invention provides the side of a kind of carbon dioxide production strontium carbonate utilized in waste gas
Method, comprises the following steps:
S1, the producing of thick strontium
Celestite and coal dust are added rotary furnace with the mass ratio of 2:1, under conditions of 800-900 degree, carries out roasting, sky
SrSO in cordierite4It is reduced into the SrS of solubility；
S2, the leaching of thick strontium
After thick strontium produces from rotary furnace, being directly transported to leaching can, during work, leaching can is closed system, temperature
The highest thick strontium is added into the leaching can equipped with water, produces High Temperature High Pressure in leaching can, and thick strontium reacts with water, in leaching can
Stirrer paddle stir 5-30 minute, in leaching can, solidliquid mixture is directly entered centrifuge, by centrifugation machine separate, leach solution
It is collected standby；
S3, waste gas purify CO2
By the waste gas absorption containing carbon dioxide to equipped with the absorption tower in absorbent solution, absorb molten by regenerator
Present in liquid, carbon dioxide makes the carbon dioxide that treated absorbent solution is recycled in absorption tower absorption waste gas；
S4, the carbonization of leaching solution
The CO that the leaching solution prepared in step S2 and step S3 are purified2It is passed through carbonators in the lump to carry out carbonization and prepare carbon
Acid strontium serosity；
S5, strontium carbonate serosity desulfurization
Strontium carbonate serosity step S4 prepared is sent into digester addition alkali liquor and is carried out desulfurization.
The one or more technical schemes provided in the embodiment of the present application, at least have the following technical effect that or advantage:
Using the tail gas produced in calcination process to purify out CO2, be subsequently used for the production of strontium carbonate, this arrangement makes money
Source can be effectively utilized, and product cost is greatly lowered, and has simple to operate, it is easy to the feature of control.Cost
Low, the market competitiveness is strong.Whole production process closed cycle, yield is high, reduces the discharge of my carbon dioxide, turns waste into wealth.
Detailed description of the invention
In order to be better understood from technique scheme, will in particular embodiments technique scheme be carried out in detail below
Thin explanation.
The method of a kind of carbon dioxide production strontium carbonate utilized in waste gas described in the present embodiment, comprises the following steps:
S1, the producing of thick strontium
Celestite and coal dust are added rotary furnace with the mass ratio of 2:1, under conditions of 800-900 degree, carries out roasting, sky
SrSO in cordierite4It is reduced into the SrS of solubility；
S2, the leaching of thick strontium
After thick strontium produces from rotary furnace, being directly transported to leaching can, during work, leaching can is closed system, temperature
The highest thick strontium is added into the leaching can equipped with water, produces High Temperature High Pressure in leaching can, and thick strontium reacts with water, in leaching can
Stirrer paddle stir 5-30 minute, in leaching can, solidliquid mixture is directly entered centrifuge, by centrifugation machine separate, leach solution
It is collected standby；
S3, waste gas purify CO2
By the waste gas absorption containing carbon dioxide to equipped with the absorption tower in absorbent solution, absorb molten by regenerator
Present in liquid, carbon dioxide makes the carbon dioxide that treated absorbent solution is recycled in absorption tower absorption waste gas；
S4, the carbonization of leaching solution
The CO that the leaching solution prepared in step S2 and step S3 are purified2It is passed through carbonators in the lump to carry out carbonization and prepare carbon
Acid strontium serosity；
S5, strontium carbonate serosity desulfurization
Strontium carbonate serosity step S4 prepared is sent into digester addition alkali liquor and is carried out desulfurization.
The above, be only presently preferred embodiments of the present invention, and the present invention not makees any pro forma restriction, though
So the present invention is disclosed above with preferred embodiment, but is not limited to the present invention, any technology people being familiar with this specialty
Member, in the range of without departing from technical solution of the present invention, when the technology contents of available the disclosure above makes a little change or modification
For the Equivalent embodiments of equivalent variations, as long as being the content without departing from technical solution of the present invention, the technical spirit of the foundation present invention
Any simple modification, equivalent variations and the modification being made above example, all still falls within the range of technical solution of the present invention.
Claims (1)
1. the method for the carbon dioxide production strontium carbonate that a kind utilizes in waste gas, it is characterised in that comprise the following steps:
S1, the producing of thick strontium
Celestite and coal dust are added rotary furnace with the mass ratio of 2:1, under conditions of 800-900 degree, carries out roasting, celestite
In SrSO4 be reduced into the SrS of solubility；
S2, the leaching of thick strontium
After thick strontium produces from rotary furnace, being directly transported to leaching can, during work, leaching can is closed system, and temperature is the highest
Thick strontium be added into the leaching can equipped with water, produce High Temperature High Pressure in leaching can, thick strontium reacts with water, stirring in leaching can
Mixing blade stirring 5-30 minute, in leaching can, solidliquid mixture is directly entered centrifuge, and machine separates by centrifugation, and leaching solution is received
Collect standby；
S3, waste gas purify CO2
By the waste gas absorption containing carbon dioxide to equipped with the absorption tower in absorbent solution, absorbed in absorbent solution by regenerator
The carbon dioxide existed makes the carbon dioxide that treated absorbent solution is recycled in absorption tower absorption waste gas；
S4, the carbonization of leaching solution
The CO that the leaching solution prepared in step S2 and step S3 are purified2 It is passed through carbonators in the lump to carry out carbonization and prepare strontium carbonate
Serosity；
S5, strontium carbonate serosity desulfurization
Strontium carbonate serosity step S4 prepared is sent into digester addition alkali liquor and is carried out desulfurization.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610185283.0A CN106044820A (en) | 2016-03-29 | 2016-03-29 | Method for producing strontium carbonate from carbon dioxide in exhaust gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610185283.0A CN106044820A (en) | 2016-03-29 | 2016-03-29 | Method for producing strontium carbonate from carbon dioxide in exhaust gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106044820A true CN106044820A (en) | 2016-10-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610185283.0A Pending CN106044820A (en) | 2016-03-29 | 2016-03-29 | Method for producing strontium carbonate from carbon dioxide in exhaust gas |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107601543A (en) * | 2017-10-28 | 2018-01-19 | 李志强 | Strontium carbonate and its production method |
| CN108793086A (en) * | 2018-07-23 | 2018-11-13 | 贵州红星发展股份有限公司 | The leaching method and leaching device of alkaline earth sulfide |
| CN110589777A (en) * | 2019-09-27 | 2019-12-20 | 仝六斗 | Processing and extracting process for barite or celestite |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87101234A (en) * | 1987-12-20 | 1988-11-09 | 安增基 | Process for producing strontium carbonate by calcination |
| CN1042886A (en) * | 1988-11-23 | 1990-06-13 | 肖平起 | Process for producing strontium carbonate |
| JP2008019108A (en) * | 2006-07-11 | 2008-01-31 | Nittetsu Mining Co Ltd | Method for producing strontium carbonate particulate |
| CN101318683A (en) * | 2008-07-18 | 2008-12-10 | 石家庄市正定金石化工有限公司 | Method for preparing strontium carbonate |
-
2016
- 2016-03-29 CN CN201610185283.0A patent/CN106044820A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87101234A (en) * | 1987-12-20 | 1988-11-09 | 安增基 | Process for producing strontium carbonate by calcination |
| CN1042886A (en) * | 1988-11-23 | 1990-06-13 | 肖平起 | Process for producing strontium carbonate |
| JP2008019108A (en) * | 2006-07-11 | 2008-01-31 | Nittetsu Mining Co Ltd | Method for producing strontium carbonate particulate |
| CN101318683A (en) * | 2008-07-18 | 2008-12-10 | 石家庄市正定金石化工有限公司 | Method for preparing strontium carbonate |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107601543A (en) * | 2017-10-28 | 2018-01-19 | 李志强 | Strontium carbonate and its production method |
| CN107601543B (en) * | 2017-10-28 | 2018-11-23 | 公碧燕 | Strontium carbonate and its production method |
| CN108793086A (en) * | 2018-07-23 | 2018-11-13 | 贵州红星发展股份有限公司 | The leaching method and leaching device of alkaline earth sulfide |
| CN110589777A (en) * | 2019-09-27 | 2019-12-20 | 仝六斗 | Processing and extracting process for barite or celestite |
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Application publication date: 20161026 |
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