CN101302016A - Hydrochloric acid neutralisation degasification method for alkali making filtrated stock - Google Patents
Hydrochloric acid neutralisation degasification method for alkali making filtrated stock Download PDFInfo
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- CN101302016A CN101302016A CNA2008100313903A CN200810031390A CN101302016A CN 101302016 A CN101302016 A CN 101302016A CN A2008100313903 A CNA2008100313903 A CN A2008100313903A CN 200810031390 A CN200810031390 A CN 200810031390A CN 101302016 A CN101302016 A CN 101302016A
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- hydrochloric acid
- filtrated stock
- alkali making
- neutralization
- alkali
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Abstract
The invention relates to an alkali making filtrated stock hydrochloric acid neutralization and degassing method. The method is characterized in that: hydrochloric acid is added to an alkali making filtrated stock and fully mixed till a PH value is equal to between 4 and 6. The hydrochloric acid is added to the alkali making filtrated stock for neutralization; after the neutralization reaction, carbon dioxide is separated out and a useful component called ammonium chloride is acquired; and the method needs no special equipment and has small investment which can be reduced by 99 percent of the investment for heating, distillation and degassing, can arbitrarily adjust the handling capacity and has convenient operation.
Description
Technical field
The present invention relates to a kind of chemical production technical, in particularly a kind of system alkali filtrated stock hydrochloric acid and degassing method.
Background technology
In the Chemical Manufacture, when utilizing bittern to produce soda ash or sodium bicarbonate, exist, carry out smoothly, reclaim the ammonium chloride composition in the mother liquor to guarantee evaporation to the filtrated stock treating processes that outgases.At present, generally be to adopt filtrated stock to be heated the distillatory method to outgas, when mother liquor was heated to 45 ℃, bicarbonate of ammonia wherein began to decompose, generate volatile salt and water, separate out carbonic acid gas, when mother liquor continued to be heated to more than 100 ℃, volatile salt could decompose fully, separate out carbonic acid gas and gaseous state ammonium, add large distillation degassing tower and heat-exchange equipment that thermal distillation need use the titanium material to make, invest huge, by per hour handling mother liquor 40M
3Meter, facility investment is more than 1,000 ten thousand yuan.
Summary of the invention
The objective of the invention is in order to overcome above-mentioned weak point, and provide a kind of investment little, treatment capacity can be regulated arbitrarily, in the easy to operate system alkali filtrated stock hydrochloric acid and degassing method.
For achieving the above object, the treatment process that the present invention adopts is: hydrochloric acid is added in the system alkali filtrated stock, be fully mixed to PH=4～6.
The present invention adopts in main component is the system alkali filtrated stock of ammonium chloride, bicarbonate of ammonia and volatile salt and adds hydrochloric acid neutral treatment process, in the N-process, finishes NH
4HCO
3+ HCL → NH
4CL+H
2O+CO
2↑ (NH
4)
2CO
3+ 2HCL → 2NH
4CL+H
2O+CO
2Useful component ammonium chloride is obtained in ↑ reaction when separating out carbonic acid gas, do not need specific installation, invest for a short time, compares the investment cost that adds the thermal distillation degassing and can reduce 99%, only needs 100,000 yuan just can realize per hour handling 40M
3The mother liquor amount, and the changeable any adjusting of treatment capacity, easy to operate.
Embodiment
Select the plastics reaction container for use, carry system alkali filtrated stock, hydrochloric acid continuously in bucket, mix, when being neutralized to PH=5, carbonic acid gas is separated out mother liquor, and the mother liquor after the neutralization is released to mother liquor storage pond, finishes degasification process.
Claims (1)
1, in a kind of system alkali filtrated stock hydrochloric acid and degassing method, it is characterized in that hydrochloric acid is added in the system alkali filtrated stock, be fully mixed to PH=4～6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100313903A CN101302016A (en) | 2008-05-24 | 2008-05-24 | Hydrochloric acid neutralisation degasification method for alkali making filtrated stock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100313903A CN101302016A (en) | 2008-05-24 | 2008-05-24 | Hydrochloric acid neutralisation degasification method for alkali making filtrated stock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101302016A true CN101302016A (en) | 2008-11-12 |
Family
ID=40112150
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008100313903A Pending CN101302016A (en) | 2008-05-24 | 2008-05-24 | Hydrochloric acid neutralisation degasification method for alkali making filtrated stock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101302016A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103011199A (en) * | 2012-12-27 | 2013-04-03 | 衡阳市海联盐卤化工有限公司 | Process for deamination and degasification of filtrated stock generated during alkali making |
-
2008
- 2008-05-24 CN CNA2008100313903A patent/CN101302016A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103011199A (en) * | 2012-12-27 | 2013-04-03 | 衡阳市海联盐卤化工有限公司 | Process for deamination and degasification of filtrated stock generated during alkali making |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20081112 |