CN101643231A - Method for preparing co-production sodium carbonate of nano barium sulfate - Google Patents
Method for preparing co-production sodium carbonate of nano barium sulfate Download PDFInfo
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- CN101643231A CN101643231A CN200910040053A CN200910040053A CN101643231A CN 101643231 A CN101643231 A CN 101643231A CN 200910040053 A CN200910040053 A CN 200910040053A CN 200910040053 A CN200910040053 A CN 200910040053A CN 101643231 A CN101643231 A CN 101643231A
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- barium sulfate
- carbonate
- sulfate
- sodium carbonate
- nano barium
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Abstract
The invention discloses a method for preparing co-production sodium carbonate of nano barium sulfate, which is characterized in that barium carbonate chemically reacts with sodium sulfate according toa certain proportion; the obtained mixed liquor is filtered to obtain a filtering cake and filtering liquor; the filtering cake is washed, dried, pulverized and packed; nano barium sulfate is obtained; the filtering liquor is decompressed and distilled and sodium carbonate is obtained. The method for preparing precipitated sodium carbonate is convenient and quick; especially, low-grade barium carbonate and sodium sulfate are used for producing high-grade precipitated barium sulfate, and thereby the method has the advantages of simple production technology and equipment as well as high production rate and profit.
Description
Technical field:
The present invention relates to the technical field of the important filler preparation of a kind of chemical industry, particularly a kind of method for preparing co-production sodium carbonate of nano barium sulfate.
Technical background:
The method of producing process white is a lot, mainly based on barium ore production.But the production productive rate of this method is lower, and the material volume of traffic much causes production unit complicated and huge.Also the method for co-produced sodium carbonate is simple and direct and lucid and lively with the process white of barium carbonate and sodium sulfate preparation, particularly produces the process white of top grade with rudimentary barium carbonate and sodium sulfate, and the simple productive rate of production technique and equipment is very big, and profit is very high.
Summary of the invention:
The invention provides a kind of method for preparing co-production sodium carbonate of superfine precipitated barium sulfate with barium carbonate and sodium sulfate, the process white of adopting said method preparation is simple and direct and lucid and lively, particularly produce high-grade process white with rudimentary barium carbonate and sodium sulfate, the simple productive rate of production technique and equipment is very big, and profit is very high.
In order to realize above-mentioned purpose, technical scheme of the present invention is:
Barium carbonate (5) is dissolved into the aqueous solution handles the good sodium sulfate (6) of back and dissolving with pure substance mass ratio 1: 0.42-1.02 injecting reactor (1) lining with the 4-8% tensio-active agent, carry out stirring reaction with 300-500 rev/min and obtain barium sulfate and yellow soda ash mixing liquid, through centrifugal (2) filter filter cake process white and filtrate yellow soda ash, filter cake is through washing, dry (3), pulverize (4), be packaged to be the nano barium sulfate product, filtrate obtains the yellow soda ash product through underpressure distillation.Its chemical principle is:
BaCO
3+NaSO
4＝＝＝＝BaSO
4+Na
2CO
3
Description of drawings:
This figure is a process flow sheet of the present invention, wherein:
1---reactor, 2---whizzer, 3---moisture eliminator, 4---pulverizer, 5---barium carbonate is given stockline, and 6---sodium sulfate is given stockline.
Concrete embodiment:
Embodiment one: 500 kilograms of barium carbonates (5) are dissolved into the aqueous solution handle the back and dissolve good sodium sulfate (6) with 1: 0.42 injecting reactor (1) of pure substance mass ratio lining with 4% tensio-active agent, carry out stirring reaction with 300 rev/mins and obtain the barium sulfate aqueous solution and yellow soda ash mixing liquid, through centrifugal (2) filter filter cake process white and filtrate yellow soda ash, filter cake is through washing, dry (3), pulverize (4), be packaged to be 344.58 kilograms of nano barium sulfate products, filtrate obtains 156.76 kilograms of yellow soda ash products through underpressure distillation.
Embodiment two: 500 kilograms of barium carbonates (5) are dissolved into the aqueous solution handle the back and dissolve good sodium sulfate (6) with 1: 1.02 injecting reactor (1) of pure substance mass ratio lining with 8% tensio-active agent, carry out stirring reaction with 500 rev/mins and obtain the barium sulfate aqueous solution and yellow soda ash mixing liquid, through centrifugal (2) filter filter cake process white and filtrate yellow soda ash, filter cake is through washing, dry (3), pulverize (4), be packaged to be 591.37 kilograms of nano barium sulfate products, filtrate obtains 269.04 kilograms of yellow soda ash products through underpressure distillation.
Claims (5)
1 one kinds of methods that prepare co-production sodium carbonate of nano barium sulfate are carried out chemical reaction by barium carbonate and sodium sulfate and are obtained, and its technical characterictic is that barium carbonate and sodium sulfate are reflected at when making nano barium sulfate according to a certain percentage, go back co-produced sodium carbonate.
The described a kind of method for preparing co-production sodium carbonate of nano barium sulfate of 2 claims 1, its technical characterictic is that barium carbonate and sodium sulfate are reflected at when making nano barium sulfate according to a certain percentage, go back co-produced sodium carbonate.Concrete technical process is:
Barium carbonate (5) is dissolved into the aqueous solution handles the good sodium sulfate (6) of back and dissolving with pure substance mass ratio 1: 0.42-1.02 injecting reactor (1) lining with the 4-8% tensio-active agent, carry out stirring reaction with 300-500 rev/min and obtain the barium sulfate aqueous solution and yellow soda ash mixing liquid, through centrifugal (2) filter filter cake process white and filtrate yellow soda ash, filter cake is through washing, dry (3), pulverize (4), be packaged to be the nano barium sulfate product, filtrate obtains the yellow soda ash product through underpressure distillation.
The described a kind of method for preparing co-production sodium carbonate of nano barium sulfate of 3 claims 2, its technical characterictic is describedly barium carbonate (5) is dissolved into the aqueous solution handles the good sodium sulfate (6) of back and dissolving with pure substance mass ratio 1 with the 4-8% tensio-active agent: 0.42-1.02 injecting reactor (1) lining, and carry out stirring reaction with 300-500 rev/min and obtain the barium sulfate aqueous solution and yellow soda ash mixing liquid.
The described a kind of method for preparing co-production sodium carbonate of nano barium sulfate of 4 claims 2, its technical characterictic be described through centrifugal (2) filter filter cake process white and filtrate yellow soda ash, filter cake is through washing, dry (3), pulverize (4), be packaged to be the nano barium sulfate product.
The described a kind of method for preparing co-production sodium carbonate of nano barium sulfate of 5 claims 2, its technical characterictic is that described filtrate obtains the yellow soda ash product through underpressure distillation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910040053A CN101643231A (en) | 2009-06-08 | 2009-06-08 | Method for preparing co-production sodium carbonate of nano barium sulfate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910040053A CN101643231A (en) | 2009-06-08 | 2009-06-08 | Method for preparing co-production sodium carbonate of nano barium sulfate |
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| CN101643231A true CN101643231A (en) | 2010-02-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910040053A Pending CN101643231A (en) | 2009-06-08 | 2009-06-08 | Method for preparing co-production sodium carbonate of nano barium sulfate |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101811721A (en) * | 2009-06-08 | 2010-08-25 | 王嘉兴 | Method for preparing nano barium sulfate and co-producing carbonic acid by using barium carbonate |
| CN101823754A (en) * | 2009-04-13 | 2010-09-08 | 王嘉兴 | Method for co-production of carbon dioxide in preparation of nano barium sulfate by barium carbonate |
| CN101838010A (en) * | 2009-04-13 | 2010-09-22 | 王嘉兴 | Method for preparing nano barium sulfate and co-producing sodium chloride |
| CN107162035A (en) * | 2017-06-06 | 2017-09-15 | 浙江工业大学温州科学技术研究院 | A kind of preparation method of blanc fixe |
-
2009
- 2009-06-08 CN CN200910040053A patent/CN101643231A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101823754A (en) * | 2009-04-13 | 2010-09-08 | 王嘉兴 | Method for co-production of carbon dioxide in preparation of nano barium sulfate by barium carbonate |
| CN101838010A (en) * | 2009-04-13 | 2010-09-22 | 王嘉兴 | Method for preparing nano barium sulfate and co-producing sodium chloride |
| CN101811721A (en) * | 2009-06-08 | 2010-08-25 | 王嘉兴 | Method for preparing nano barium sulfate and co-producing carbonic acid by using barium carbonate |
| CN107162035A (en) * | 2017-06-06 | 2017-09-15 | 浙江工业大学温州科学技术研究院 | A kind of preparation method of blanc fixe |
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Open date: 20100210 |