JPS57156325A - Recovery of thiocyanate salt - Google Patents
Recovery of thiocyanate saltInfo
- Publication number
- JPS57156325A JPS57156325A JP3703081A JP3703081A JPS57156325A JP S57156325 A JPS57156325 A JP S57156325A JP 3703081 A JP3703081 A JP 3703081A JP 3703081 A JP3703081 A JP 3703081A JP S57156325 A JPS57156325 A JP S57156325A
- Authority
- JP
- Japan
- Prior art keywords
- thiocyanates
- thiosulfates
- sulfates
- concentrated
- precipitate
- 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
- 150000003567 thiocyanates Chemical class 0.000 title abstract 5
- 238000011084 recovery Methods 0.000 title 1
- 239000002699 waste material Substances 0.000 abstract 4
- 150000003467 sulfuric acid derivatives Chemical class 0.000 abstract 3
- 150000004764 thiosulfuric acid derivatives Chemical class 0.000 abstract 3
- 239000000571 coke Substances 0.000 abstract 2
- ZMZDMBWJUHKJPS-UHFFFAOYSA-M Thiocyanate anion Chemical compound [S-]C#N ZMZDMBWJUHKJPS-UHFFFAOYSA-M 0.000 abstract 1
- 150000001875 compounds Chemical class 0.000 abstract 1
- 238000006477 desulfuration reaction Methods 0.000 abstract 1
- 230000023556 desulfurization Effects 0.000 abstract 1
- 238000001914 filtration Methods 0.000 abstract 1
- ZMZDMBWJUHKJPS-UHFFFAOYSA-N hydrogen thiocyanate Natural products SC#N ZMZDMBWJUHKJPS-UHFFFAOYSA-N 0.000 abstract 1
Landscapes
- Separation Of Suspended Particles By Flocculating Agents (AREA)
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
- Industrial Gases (AREA)
Abstract
PURPOSE: A waste solution resulting from the wet desulfurization of coke furnace gas, containing prescribed amounts of the objective compound, is concentrated in two stages and/or cooled to precipitate and separate sulfates and thiocyanates respectively, thus recovering thiocyanates from the waste solutions easily.
CONSTITUTION: A wet desulfurizer for coke furnace gas is operated under such conditions as most of thiosulfates are converted into sulfates so that the content of thiosulfates in the waste solution is made less than half of the thiocyanate content. Then, the resultant waste solution is concentrated almost to the saturation of thiocyanates and/or cooled to precipitate sulfates, which are filtered off. Further, the remaining solution is concentrated to the saturation of thiosulfates and/or cooled to precipitate the thiocyanates, which is recovered by filtration.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3703081A JPS57156325A (en) | 1981-03-14 | 1981-03-14 | Recovery of thiocyanate salt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3703081A JPS57156325A (en) | 1981-03-14 | 1981-03-14 | Recovery of thiocyanate salt |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57156325A true JPS57156325A (en) | 1982-09-27 |
| JPS612613B2 JPS612613B2 (en) | 1986-01-27 |
Family
ID=12486233
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3703081A Granted JPS57156325A (en) | 1981-03-14 | 1981-03-14 | Recovery of thiocyanate salt |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57156325A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08136820A (en) * | 1994-11-11 | 1996-05-31 | Koike Seiki Kk | Sample stage vertical fine adjustment device for laser scanning microscope |
-
1981
- 1981-03-14 JP JP3703081A patent/JPS57156325A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS612613B2 (en) | 1986-01-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| PL318754A1 (en) | Hydrometallurgical zinc sulphite-to-sulphate comversion of zinc sulphite contained in ores and ore concentrates | |
| ES8103186A1 (en) | Purification of wet process phosphoric acid as a pretreatment step in the recovery of uranium | |
| JPS577825A (en) | Recovering method for ammonium thiocyanate | |
| JPS57156325A (en) | Recovery of thiocyanate salt | |
| AU696509B2 (en) | Process for removing SO2 from gases which contain it, with direct production of elemental sulfur | |
| JPS5375196A (en) | Removing method for heavy metals from phosphoric acid solution | |
| ES8402169A1 (en) | Self-regulating process for removal of hydrogen sulfide from gases. | |
| JPS5210889A (en) | Purification process of granular sulfide | |
| EP0348875A3 (en) | Method for the recovery of sulfur | |
| JPS5437365A (en) | Treatment of organic acid washing liquid | |
| JPS5722116A (en) | Preparation of purified ammonium sulfate | |
| JPS5355653A (en) | Sewage sand separator | |
| JPS5426994A (en) | Recovering method for purified molten sulfur | |
| JPS51151292A (en) | Process for purification of granular sulfur | |
| JPS5590419A (en) | Refining method for ammonia | |
| JPS51127000A (en) | Process for recovering ammomumsul fate from heavy oil ashes | |
| JPS5579842A (en) | Lead concentrate treating method | |
| JPS53110997A (en) | Purifying method for impure phosphoric acid | |
| JPS5738313A (en) | Purifying method for phosphoric acid solution | |
| JPS55126531A (en) | Cuprous thiocyanate synthesizing method | |
| JPS538308A (en) | Preparation of vanadium compounds using fused ferro alloy refining slag as raw material | |
| JPS5226502A (en) | Method for purifying coke-oven gas | |
| JPS5717421A (en) | Recovering method for purified ammonium thiocyanate | |
| JPS57120631A (en) | Separating and recovering method for zn component from substance containing zn | |
| JPS5742534A (en) | Treatment of smelting slag containing alkali metal compound |