JPS5493669A - Treating method for desulfurized waste liquid of coke oven gas - Google Patents
Treating method for desulfurized waste liquid of coke oven gasInfo
- Publication number
- JPS5493669A JPS5493669A JP14938377A JP14938377A JPS5493669A JP S5493669 A JPS5493669 A JP S5493669A JP 14938377 A JP14938377 A JP 14938377A JP 14938377 A JP14938377 A JP 14938377A JP S5493669 A JPS5493669 A JP S5493669A
- Authority
- JP
- Japan
- Prior art keywords
- copper
- waste liquid
- liquid
- acid radical
- concentration
- 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.)
- Pending
Links
Landscapes
- Treatment Of Water By Oxidation Or Reduction (AREA)
Abstract
PURPOSE: To convert thiocyanate ion, thiosulfuric acid radical and free sulfur etc. to sulfuric acid radical and to prevent corrosion of reactor material, by carrying out oxidation reaction of desulfurized waste liquid at a fixed temperature adding a fixed amount of copper and ammonia water.
CONSTITUTION: Metallic copper, copper alloy or copper sulfate etc. and ammonia water, are added to desulfurized waste liquid so as the concentration of copper in waste liquid to be less than 50 ppm. Next, wet process oxidation reaction is carried out under the condition maintaining at least a part of the liquid in liquid phase by supplying oxygen etc. at more than 150°C of reaction temperature. Hereby, all of thiocyanate ion, thiosulfuric acid radical, free sulfur in the waste liquid, are converted to sulfuric acid radical. By the above method, good conversion rate is able to obtain at about 5 ppm of copper concentration and low reaction temperature. Gas is separated from liquid in the waste liquid after treatment and waste gas is discharged in the atmosphere. Liquid is discharged as it is, because COD and copper ion concentration, are low.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14938377A JPS5493669A (en) | 1977-12-14 | 1977-12-14 | Treating method for desulfurized waste liquid of coke oven gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14938377A JPS5493669A (en) | 1977-12-14 | 1977-12-14 | Treating method for desulfurized waste liquid of coke oven gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5493669A true JPS5493669A (en) | 1979-07-24 |
Family
ID=15473918
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14938377A Pending JPS5493669A (en) | 1977-12-14 | 1977-12-14 | Treating method for desulfurized waste liquid of coke oven gas |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5493669A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102225798A (en) * | 2011-03-31 | 2011-10-26 | 北京化工大学 | Comprehensive utilization method of desulfurization waste liquid |
| CN106865578A (en) * | 2017-03-21 | 2017-06-20 | 山东京博石油化工有限公司 | A kind of method for producing sodium sulphate using useless doctor solution |
| CN108715452A (en) * | 2018-07-26 | 2018-10-30 | 北京富海天环保科技有限公司 | A kind of desulfurization waste liquor preprocess method of high-purity sodium sulfocyanate and sodium thiosulfate |
| CN109052330A (en) * | 2018-09-12 | 2018-12-21 | 昌吉学院 | A method of sulphur simple substance is prepared using coking of coal desulfurization waste liquor |
| JP2019030877A (en) * | 2018-04-13 | 2019-02-28 | ジァンナン・エンバイロメンタル・プロテクション・グループ・インコーポレイテッドＪｉａｎｇｎａｎ Ｅｎｖｉｒｏｎｍｅｎｔａｌ Ｐｒｏｔｅｃｔｉｏｎ Ｇｒｏｕｐ Ｉｎｃ． | Method and apparatus for oxidizing solution for ammonia desulfurization |
| US10388682B2 (en) | 2017-06-15 | 2019-08-20 | Samsung Electronics Co., Ltd. | Image sensor for measuring distance |
-
1977
- 1977-12-14 JP JP14938377A patent/JPS5493669A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102225798A (en) * | 2011-03-31 | 2011-10-26 | 北京化工大学 | Comprehensive utilization method of desulfurization waste liquid |
| CN106865578A (en) * | 2017-03-21 | 2017-06-20 | 山东京博石油化工有限公司 | A kind of method for producing sodium sulphate using useless doctor solution |
| US10388682B2 (en) | 2017-06-15 | 2019-08-20 | Samsung Electronics Co., Ltd. | Image sensor for measuring distance |
| JP2019030877A (en) * | 2018-04-13 | 2019-02-28 | ジァンナン・エンバイロメンタル・プロテクション・グループ・インコーポレイテッドＪｉａｎｇｎａｎ Ｅｎｖｉｒｏｎｍｅｎｔａｌ Ｐｒｏｔｅｃｔｉｏｎ Ｇｒｏｕｐ Ｉｎｃ． | Method and apparatus for oxidizing solution for ammonia desulfurization |
| CN108715452A (en) * | 2018-07-26 | 2018-10-30 | 北京富海天环保科技有限公司 | A kind of desulfurization waste liquor preprocess method of high-purity sodium sulfocyanate and sodium thiosulfate |
| CN108715452B (en) * | 2018-07-26 | 2020-08-21 | 北京富海天环保科技有限公司 | Desulfurization waste liquid pretreatment method for preparing high-purity sodium thiocyanate and sodium thiosulfate |
| CN109052330A (en) * | 2018-09-12 | 2018-12-21 | 昌吉学院 | A method of sulphur simple substance is prepared using coking of coal desulfurization waste liquor |
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