JPS5717421A - Recovering method for purified ammonium thiocyanate - Google Patents
Recovering method for purified ammonium thiocyanateInfo
- Publication number
- JPS5717421A JPS5717421A JP9112280A JP9112280A JPS5717421A JP S5717421 A JPS5717421 A JP S5717421A JP 9112280 A JP9112280 A JP 9112280A JP 9112280 A JP9112280 A JP 9112280A JP S5717421 A JPS5717421 A JP S5717421A
- Authority
- JP
- Japan
- Prior art keywords
- soln
- separated
- ammonium thiocyanate
- crystallizer
- concentrator
- 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 4
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 abstract 2
- 229910052921 ammonium sulfate Inorganic materials 0.000 abstract 2
- 235000011130 ammonium sulphate Nutrition 0.000 abstract 2
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 abstract 2
- 239000000920 calcium hydroxide Substances 0.000 abstract 2
- 229910001861 calcium hydroxide Inorganic materials 0.000 abstract 2
- 239000000571 coke Substances 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 2
- 238000001816 cooling Methods 0.000 abstract 1
- 239000013078 crystal Substances 0.000 abstract 1
- 238000003756 stirring Methods 0.000 abstract 1
- 238000009279 wet oxidation reaction Methods 0.000 abstract 1
Landscapes
- Industrial Gases (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
PURPOSE: To recover high purity ammonium thiocyanate by simple operation by separating ammonium sulfate from waste liquor discharged by the wet desulfurization of coke oven gas, adding water or Ca(OH)2 to the resulting soln., and cooling the soln.
CONSTITUTION: Waste liquor discharged from a coke oven after wet desulfurization is treated by wet oxidation, and the treated liquor 5 is charged into a concentrator 1, concd., and fed to a centrifugal separator 2, where crude crystals 7 of ammonium sulfate are separated and recovered. The separated soln. 8 is introduced into a crystallizer 3, and after adding water, it is cooled with stirring to crystallize ammonium thiocyanate, which is then separated with a centrifugal separator 4 to take out purified ammonium thiocyanate. The separated soln. 10 is returned to the concentrator 1 and reused. The separated soln. 8 from the separator 2 may be mixed with Ca(OH)2, stirred, filtered, and charged into the crystallizer 3.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9112280A JPS5717421A (en) | 1980-07-02 | 1980-07-02 | Recovering method for purified ammonium thiocyanate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9112280A JPS5717421A (en) | 1980-07-02 | 1980-07-02 | Recovering method for purified ammonium thiocyanate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5717421A true JPS5717421A (en) | 1982-01-29 |
| JPS6323129B2 JPS6323129B2 (en) | 1988-05-14 |
Family
ID=14017716
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9112280A Granted JPS5717421A (en) | 1980-07-02 | 1980-07-02 | Recovering method for purified ammonium thiocyanate |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5717421A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111773750A (en) * | 2020-05-28 | 2020-10-16 | 辽宁科技大学 | A non-blast furnace ironmaking ADA desulfurization and salt extraction conveying system |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6380222U (en) * | 1986-11-14 | 1988-05-27 |
-
1980
- 1980-07-02 JP JP9112280A patent/JPS5717421A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111773750A (en) * | 2020-05-28 | 2020-10-16 | 辽宁科技大学 | A non-blast furnace ironmaking ADA desulfurization and salt extraction conveying system |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6323129B2 (en) | 1988-05-14 |
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