CN101643230A - Method for preparing co-production sodium carbonate of superfine precipitated barium sulfate - Google Patents
Method for preparing co-production sodium carbonate of superfine precipitated barium sulfate Download PDFInfo
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- CN101643230A CN101643230A CN200910040052A CN200910040052A CN101643230A CN 101643230 A CN101643230 A CN 101643230A CN 200910040052 A CN200910040052 A CN 200910040052A CN 200910040052 A CN200910040052 A CN 200910040052A CN 101643230 A CN101643230 A CN 101643230A
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- barium sulfate
- precipitated barium
- carbonate
- sulfate
- sodium carbonate
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Abstract
The invention discloses a method for preparing co-production sodium carbonate of superfine precipitated barium sulfate, which is characterized in that barium carbonate chemically reacts with sodium sulfate according to a 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; superfine precipitated barium sulfate is obtained; the filtering liquor is decompressed and distilled and sodium carbonate is obtained. The method for preparing the precipitated barium sulfate 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 technologyand 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 superfine precipitated 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, 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 1-3% tensio-active agent, carry out stirring reaction with 120-300 rev/min rotating speed 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), (1) is packaged to be the superfine precipitated barium sulfate product, filtrate is through underpressure distillation, and air stream drying obtains the yellow soda ash product.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 1% tensio-active agent, carry out stirring reaction with 120 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 superfine precipitated 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 3% 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 591.37 kilograms of superfine precipitated 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 superfine precipitated barium sulfate, carrying out chemical reaction by barium carbonate and sodium sulfate obtains, its technical characterictic is that barium carbonate and sodium sulfate are reflected at when making superfine precipitated 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 superfine precipitated barium sulfate of 2 claims 1, its technical characterictic is that barium carbonate and sodium sulfate are reflected at when making superfine precipitated 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 with the 1-3% tensio-active agent: 0.42-1.02 injecting reactor (1) lining, carry out stirring reaction with 120-300 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 superfine precipitated barium sulfate product, filtrate is through underpressure distillation, and air stream drying obtains the yellow soda ash product.
The described a kind of method for preparing co-production sodium carbonate of superfine precipitated 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 1-3% tensio-active agent: 0.42-1.02 injecting reactor (1) lining, and carry out stirring reaction with 120-300 rev/min and obtain barium sulfate and yellow soda ash mixing liquid.
The described a kind of method for preparing co-production sodium carbonate of superfine precipitated 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 superfine precipitated barium sulfate product.
The described a kind of method for preparing co-production sodium carbonate of superfine precipitated barium sulfate of 5 claims 2, its technical characterictic is described filtrate through underpressure distillation, air stream drying obtains the yellow soda ash product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910040052A CN101643230A (en) | 2009-06-08 | 2009-06-08 | Method for preparing co-production sodium carbonate of superfine precipitated barium sulfate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910040052A CN101643230A (en) | 2009-06-08 | 2009-06-08 | Method for preparing co-production sodium carbonate of superfine precipitated barium sulfate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101643230A true CN101643230A (en) | 2010-02-10 |
Family
ID=41655323
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910040052A Pending CN101643230A (en) | 2009-06-08 | 2009-06-08 | Method for preparing co-production sodium carbonate of superfine precipitated barium sulfate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101643230A (en) |
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2009
- 2009-06-08 CN CN200910040052A patent/CN101643230A/en active Pending
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
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Open date: 20100210 |