JPS577825A - Recovering method for ammonium thiocyanate - Google Patents
Recovering method for ammonium thiocyanateInfo
- Publication number
- JPS577825A JPS577825A JP8380580A JP8380580A JPS577825A JP S577825 A JPS577825 A JP S577825A JP 8380580 A JP8380580 A JP 8380580A JP 8380580 A JP8380580 A JP 8380580A JP S577825 A JPS577825 A JP S577825A
- Authority
- JP
- Japan
- Prior art keywords
- liquor
- ammonium
- ammonium thiocyanate
- thiocyanate
- ammonium sulfate
- 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
- SOIFLUNRINLCBN-UHFFFAOYSA-N ammonium thiocyanate Chemical compound [NH4+].[S-]C#N SOIFLUNRINLCBN-UHFFFAOYSA-N 0.000 title abstract 5
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 abstract 3
- 229910052921 ammonium sulfate Inorganic materials 0.000 abstract 3
- 235000011130 ammonium sulphate Nutrition 0.000 abstract 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract 2
- 238000006477 desulfuration reaction Methods 0.000 abstract 2
- 230000023556 desulfurization Effects 0.000 abstract 2
- 239000002699 waste material Substances 0.000 abstract 2
- 230000002378 acidificating effect Effects 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
- 239000000571 coke Substances 0.000 abstract 1
- 238000001914 filtration Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 abstract 1
- 230000001590 oxidative effect Effects 0.000 abstract 1
- 229910052760 oxygen Inorganic materials 0.000 abstract 1
- 239000001301 oxygen Substances 0.000 abstract 1
Landscapes
- Industrial Gases (AREA)
Abstract
PURPOSE: To easily recover ammonium thiocyanate by wet oxidizing waste liquor discharged by the wet desulfurization of coke oven gas, concentrating the liquor to make a state close to the saturation point of ammonium thiocyanate, and crystallizing ammonium sulfate.
CONSTITUTION: Desulfurization waste liquor is decolored with activated carbon, and oxygen is blown into the liquor at ≤ about 200°C in a weakly acidic W akaline region to convert ammonium thiosulfate in the liquor into ammonium sulfate. The liquor is then concd. and/or cooled to make a state close to the saturation point of ammonium thiocyanate. As a result, ammonium sulfate is crystallized from the system in large quantities owing to the solubility difference, and by carrying out filtration, ammonium thiocyanate can be recovered by about 90W95%.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8380580A JPS6041005B2 (en) | 1980-06-19 | 1980-06-19 | Recovery method of ammonium thiocyanate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8380580A JPS6041005B2 (en) | 1980-06-19 | 1980-06-19 | Recovery method of ammonium thiocyanate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS577825A true JPS577825A (en) | 1982-01-16 |
| JPS6041005B2 JPS6041005B2 (en) | 1985-09-13 |
Family
ID=13812871
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8380580A Expired JPS6041005B2 (en) | 1980-06-19 | 1980-06-19 | Recovery method of ammonium thiocyanate |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6041005B2 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62184933U (en) * | 1986-05-16 | 1987-11-25 | ||
| JPH0494321U (en) * | 1990-12-29 | 1992-08-17 | ||
| KR100418986B1 (en) * | 1999-12-23 | 2004-02-14 | 주식회사 포스코 | Recovery of ammonium thiocyanate and stripping ammonia and hydrogen sulfide from coke oven gas |
| KR100516462B1 (en) * | 2000-12-15 | 2005-09-23 | 주식회사 포스코 | Method for collecting nh4scn from cog purification process |
| US7559435B2 (en) | 2003-09-16 | 2009-07-14 | Seki Kogyo Co., Ltd. | Nut feeder |
| CN102424401A (en) * | 2011-08-22 | 2012-04-25 | 宜兴市燎原化工有限公司 | Method for recovering thiocyanate from coke oven gas desulfuration and decyanation wastewater |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103342373B (en) * | 2013-06-08 | 2015-04-15 | 太原理工大学 | Decoloring method for ammonium thiocyanate salt extracted from coking desulfurization waste liquid |
-
1980
- 1980-06-19 JP JP8380580A patent/JPS6041005B2/en not_active Expired
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62184933U (en) * | 1986-05-16 | 1987-11-25 | ||
| JPH0448891Y2 (en) * | 1986-05-16 | 1992-11-18 | ||
| JPH0494321U (en) * | 1990-12-29 | 1992-08-17 | ||
| KR100418986B1 (en) * | 1999-12-23 | 2004-02-14 | 주식회사 포스코 | Recovery of ammonium thiocyanate and stripping ammonia and hydrogen sulfide from coke oven gas |
| KR100516462B1 (en) * | 2000-12-15 | 2005-09-23 | 주식회사 포스코 | Method for collecting nh4scn from cog purification process |
| US7559435B2 (en) | 2003-09-16 | 2009-07-14 | Seki Kogyo Co., Ltd. | Nut feeder |
| CN102424401A (en) * | 2011-08-22 | 2012-04-25 | 宜兴市燎原化工有限公司 | Method for recovering thiocyanate from coke oven gas desulfuration and decyanation wastewater |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6041005B2 (en) | 1985-09-13 |
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