JPS5722115A - Treating method of crude ammonium sulfate - Google Patents
Treating method of crude ammonium sulfateInfo
- Publication number
- JPS5722115A JPS5722115A JP9810480A JP9810480A JPS5722115A JP S5722115 A JPS5722115 A JP S5722115A JP 9810480 A JP9810480 A JP 9810480A JP 9810480 A JP9810480 A JP 9810480A JP S5722115 A JPS5722115 A JP S5722115A
- Authority
- JP
- Japan
- Prior art keywords
- ammonium
- ammonium sulfate
- thiocyanate
- coke oven
- resultant
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 title abstract 7
- 229910052921 ammonium sulfate Inorganic materials 0.000 title abstract 7
- 235000011130 ammonium sulphate Nutrition 0.000 title abstract 7
- 238000000034 method Methods 0.000 title abstract 2
- SOIFLUNRINLCBN-UHFFFAOYSA-N ammonium thiocyanate Chemical compound [NH4+].[S-]C#N SOIFLUNRINLCBN-UHFFFAOYSA-N 0.000 abstract 5
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 abstract 4
- 239000007789 gas Substances 0.000 abstract 4
- 239000002699 waste material Substances 0.000 abstract 4
- 239000000571 coke Substances 0.000 abstract 3
- 238000006477 desulfuration reaction Methods 0.000 abstract 3
- 230000023556 desulfurization Effects 0.000 abstract 3
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 abstract 2
- 229910021529 ammonia Inorganic materials 0.000 abstract 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 abstract 1
- XYXNTHIYBIDHGM-UHFFFAOYSA-N ammonium thiosulfate Chemical compound [NH4+].[NH4+].[O-]S([O-])(=O)=S XYXNTHIYBIDHGM-UHFFFAOYSA-N 0.000 abstract 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract 1
- 238000007664 blowing Methods 0.000 abstract 1
- 239000006227 byproduct Substances 0.000 abstract 1
- 238000000354 decomposition reaction Methods 0.000 abstract 1
- 230000003009 desulfurizing effect Effects 0.000 abstract 1
- 238000001914 filtration Methods 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 239000012452 mother liquor Substances 0.000 abstract 1
- 230000007935 neutral effect Effects 0.000 abstract 1
- 230000001590 oxidative effect Effects 0.000 abstract 1
- 239000001301 oxygen Substances 0.000 abstract 1
- 229910052760 oxygen Inorganic materials 0.000 abstract 1
Landscapes
- Industrial Gases (AREA)
Abstract
PURPOSE: To utilize ammonium sulfate formed from a desulfurization waste liquor of coke oven gas as a by-product effectively, by oxidizing the desulfurization waste liquor, filtering the waste, decomposing the adhering ammonium thiocyanate, and using the resultant ammonium sulfate solution in a step for removing ammonia.
CONSTITUTION: A desulfurization waste liquor discharged from a wet desulfurizing apparatus of coke oven gas is oxidized under such conditions as to decompose ammonium thiocyanate with difficulty, e.g. a low temperature of 200°C or below and a neutral or alkaline pH, while blowing a gas containing oxygen thereinto by the wet method to convert ammonium thiosulfate into ammonium sulfate. The resultant ammonium sulfate is then crystallized, filtered and separated from the ammonium thiocyanate. Sulfuric acid in an amount of equivalent or more to the adhering ammonium thiocyanate is added to the filtered ammonium sulfate to decompose the ammonium thiocyanate under heating. The resultant ammonium sulfte solution after the decomposition is used as an ammonium sulfate mother liquor in the step for removing ammonia from coke oven gas.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9810480A JPS5722115A (en) | 1980-07-16 | 1980-07-16 | Treating method of crude ammonium sulfate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9810480A JPS5722115A (en) | 1980-07-16 | 1980-07-16 | Treating method of crude ammonium sulfate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5722115A true JPS5722115A (en) | 1982-02-05 |
| JPS6323128B2 JPS6323128B2 (en) | 1988-05-14 |
Family
ID=14211013
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9810480A Granted JPS5722115A (en) | 1980-07-16 | 1980-07-16 | Treating method of crude ammonium sulfate |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5722115A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102161541A (en) * | 2011-01-24 | 2011-08-24 | 江苏中显集团有限公司 | Method for extracting salt from coking desulphurization waste solution and special device thereof |
| CN102701510A (en) * | 2012-06-28 | 2012-10-03 | 镇江市三环环保技术咨询服务有限公司 | Alkali-added wet type oxidation catalytic desulfurization waste solution recycling method |
| CN102976361A (en) * | 2012-12-10 | 2013-03-20 | 北京旭阳化工技术研究院有限公司 | Method for extracting high-purity ammonium thiocyanate and ammonium sulphate from coking desulfurization/decyanation waste liquor |
| CN102976357A (en) * | 2012-12-28 | 2013-03-20 | 安徽工业大学 | Method for extracting ammonium sulfate from ammonia desulphurization wastewater by oxidation process |
| CN103011201A (en) * | 2012-12-28 | 2013-04-03 | 安徽工业大学 | Method for extracting ammonium thiocyanate from ammonia-process desulfurization waste liquid by oxidation process |
| CN103030207A (en) * | 2012-12-28 | 2013-04-10 | 安徽工业大学 | Method for treating ammonia desulfurization waste liquid by oxidation method |
| CN103305286A (en) * | 2013-06-28 | 2013-09-18 | 陕西煤业化工技术研究院有限责任公司 | Coke oven gas purifying system for efficiently recycling coking plant heat source and desulfurated liquid waste treatment method |
| CN103588340A (en) * | 2013-11-27 | 2014-02-19 | 安徽工业大学 | Method for treating sodium-alkali desulfurization waste liquid by causticization-acidification method |
| CN103896307A (en) * | 2014-03-10 | 2014-07-02 | 张家港燎原环保科技有限公司 | Method for refining coke oven gas desulfurization waste liquid salt extraction product ammonium sulfate again |
| CN104986739A (en) * | 2015-07-14 | 2015-10-21 | 泰安金塔化工机械有限公司 | Method for treating mixed-salt ammonium thiosulfate on basis of air-oxidation method |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BR112012017541A2 (en) * | 2010-01-15 | 2018-04-17 | Mitsubishi Chem Corp | nitrogen-containing composition and process for nitrogen production |
-
1980
- 1980-07-16 JP JP9810480A patent/JPS5722115A/en active Granted
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102161541A (en) * | 2011-01-24 | 2011-08-24 | 江苏中显集团有限公司 | Method for extracting salt from coking desulphurization waste solution and special device thereof |
| CN102701510A (en) * | 2012-06-28 | 2012-10-03 | 镇江市三环环保技术咨询服务有限公司 | Alkali-added wet type oxidation catalytic desulfurization waste solution recycling method |
| CN102976361A (en) * | 2012-12-10 | 2013-03-20 | 北京旭阳化工技术研究院有限公司 | Method for extracting high-purity ammonium thiocyanate and ammonium sulphate from coking desulfurization/decyanation waste liquor |
| CN102976357A (en) * | 2012-12-28 | 2013-03-20 | 安徽工业大学 | Method for extracting ammonium sulfate from ammonia desulphurization wastewater by oxidation process |
| CN103011201A (en) * | 2012-12-28 | 2013-04-03 | 安徽工业大学 | Method for extracting ammonium thiocyanate from ammonia-process desulfurization waste liquid by oxidation process |
| CN103030207A (en) * | 2012-12-28 | 2013-04-10 | 安徽工业大学 | Method for treating ammonia desulfurization waste liquid by oxidation method |
| CN103305286A (en) * | 2013-06-28 | 2013-09-18 | 陕西煤业化工技术研究院有限责任公司 | Coke oven gas purifying system for efficiently recycling coking plant heat source and desulfurated liquid waste treatment method |
| CN103588340A (en) * | 2013-11-27 | 2014-02-19 | 安徽工业大学 | Method for treating sodium-alkali desulfurization waste liquid by causticization-acidification method |
| CN103896307A (en) * | 2014-03-10 | 2014-07-02 | 张家港燎原环保科技有限公司 | Method for refining coke oven gas desulfurization waste liquid salt extraction product ammonium sulfate again |
| CN104986739A (en) * | 2015-07-14 | 2015-10-21 | 泰安金塔化工机械有限公司 | Method for treating mixed-salt ammonium thiosulfate on basis of air-oxidation method |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6323128B2 (en) | 1988-05-14 |
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