CN102603489A - Use of ammonium thiosulfate byproduct produced in steelmaking wastewater treatment process as reducing agent and use method of ammonium thiosulfate - Google Patents
Use of ammonium thiosulfate byproduct produced in steelmaking wastewater treatment process as reducing agent and use method of ammonium thiosulfate Download PDFInfo
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- CN102603489A CN102603489A CN2012100275950A CN201210027595A CN102603489A CN 102603489 A CN102603489 A CN 102603489A CN 2012100275950 A CN2012100275950 A CN 2012100275950A CN 201210027595 A CN201210027595 A CN 201210027595A CN 102603489 A CN102603489 A CN 102603489A
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- ammonium thiosulfate
- resorcinol
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Abstract
The invention discloses use of ammonium thiosulfate byproduct produced in a steelmaking wastewater treatment process as a reducing agent and a use method of the ammonium thiosulfate byproduct. According to the invention, the ammonium thiosulfate byproduct produced in the steelmaking wastewater treatment process is used as a reducing agent to perform reduction of benzoquinone in a production process of benzenediol into hydroquinone. The use method of the ammonium thiosulfate byproduct produced in the steelmaking wastewater treatment process as a reducing agent comprises the following steps: (1) reducing benzoquinone into hydroquinone with ammonium thiosulfate, wherein the mole ratio of benzoquinone to the reducing agent ammonium thiosulfate is 1:(1-2.5), and the used ammonium thiosulfate in the reduction process is a crude product after extracting useful chemical products from steelmaking wastewater; and filtering to obtain a hydroquinone crude product, and recrystallizing hydroquinone into hydroquinone crystals; and (2) concentrating the mother solution obtained after the hydroquinone crude product is filtered out in the step (1) to obtain an ammonium sulfate fertilizer. The use of the ammonium thiosulfate byproduct produced in the steelmaking wastewater treatment process as a reducing agent to reduce benzoquinone into hydroquinone has the characteristics of being low in price, convenient in operation and environmental friendliness.
Description
Technical field
The present invention relates to a kind of new purposes and method of use thereof of Chemicals, particularly a kind of new purposes and method of use thereof of using the by product ammonium thiosulfate of steel-making wastewater treatment process generation as reductive agent belongs to chemical technology field.
Background technology
Resorcinol is the important chemical product, has extremely wide application field, all is used widely in industries such as chemical industry, medicine, agricultural chemicals, spices, rubber.In recent years, along with China is moved in external chemical plant, the Resorcinol aggregate consumption of China had risen to more than 6000 tons.Resorcinol sale at home is better always, and price also is the trend that goes up year by year, and the technical grade product price is 100,000 yuan/ton at present, and photographic-grade is 120,000 yuan/ton.After the violent earthquake of particularly Japanese Fukuoka, supply falls short of demand for product, causes price to rise significantly, and 70,000 yuan/ton at the beginning of 2011 rise to present 100,000 yuan/ton.Along with the home consumption amount increases, the supply breach further strengthens.
The working method of Resorcinol mainly contains aniline oxidation style, p-Diisopropylbenzene peroxo-method, phenol-hydrogen peroxide hydroxylation method etc.China produces Resorcinol since the fifties, mainly be aniline process.In the world, French Rhone-Poulence company, gondola Brichima company and Enichem company, Britain Solvay Interox company mainly adopt phenol catalyzed oxidation production benzoquinone, again through reductive agent original production Resorcinol also.This shows, produce both at home and abroad that one of main technique is in the main method of Resorcinol: use reductive agent reduction benzoquinone to produce Resorcinol technology.
Eighties of last century mainly uses iron powder to produce Resorcinol as reductive agent reduction benzoquinone, and along with the increase of environmental protection pressure, the iron powder reducing agent is prohibited.Manufacturer uses zinc powder to replace the iron powder reducing benzoquinone; Producing the zinc salt waste residue in the production still needs to handle; Therefore, from the protection environment, cut down the consumption of raw materials and the production unit expense, need develop a kind of cheap; Easy to operate, eco-friendly cleaning reductive agent reduction benzoquinone produces Resorcinol.
Summary of the invention
The present invention seeks to provide a kind of new purposes and method of use thereof of using by product ammonium thiosulfate that the steel-making wastewater treatment process produces as reductive agent for the deficiency that overcomes prior art.
For achieving the above object; The technical scheme that the present invention adopts is: a kind of purposes of using the by product ammonium thiosulfate of steel-making wastewater treatment process generation as reductive agent; The by product ammonium thiosulfate of utilizing the generation of steel-making wastewater treatment process is reduced into Resorcinol as reductive agent with the benzoquinones in the dihydroxy-benzene production process.
A kind of method of use of using the by product ammonium thiosulfate of steel-making wastewater treatment process generation as the purposes of reductive agent comprises following steps:
Step 1, benzoquinone obtain Resorcinol through the reduction of agent ammonium thiosulfate, and the mol ratio of benzoquinone and reductive agent ammonium thiosulfate is 1: 1-2.5; The ammonium thiosulfate that reduction is used is the thick product that extracts in the steel-making waste water after the useful Chemicals, wherein ammonium thiosulfate mass percentage content: 69.0%-99.5%; Ammonium sulfate mass percentage content: 0.5%-31.0%; Filter out the thick product of Resorcinol, the Resorcinol recrystallization obtains the Resorcinol crystal;
Step 2, with in the step 1, the mother liquor that filters out the thick product gained of Resorcinol concentrates and to obtain ammonium sulfate fertilizer.
Preferably, a kind of method of use of using the by product ammonium thiosulfate of steel-making wastewater treatment process generation as the purposes of reductive agent comprises following steps:
Step 1, benzoquinone obtain Resorcinol through the reduction of agent ammonium thiosulfate, and the mol ratio of benzoquinone and reductive agent ammonium thiosulfate is 1: 1-2.5; The ammonium thiosulfate that reduction is used is the thick product that extracts in the steel-making waste water after the useful Chemicals, wherein ammonium thiosulfate mass percentage content: 69.0%-99.5%; Ammonium sulfate mass percentage content: 0.5%-31.0%; Filter out the thick product of Resorcinol, the Resorcinol recrystallization obtains the Resorcinol crystal;
Step 2, with in the step 1, the mother liquor that filters out the thick product gained of Resorcinol concentrates and to obtain ammonium sulfate fertilizer.
Step 3, with the ammonium sulfate fertilizer that obtains in the step 2, utilize phasor to isolate pure ammonium sulfate.
Beneficial effect of the present invention is mainly reflected in: the by product ammonium thiosulfate that use steel-making wastewater treatment process of the present invention produces is as the purposes and the method for use thereof of reductive agent; The by product ammonium thiosulfate of using the generation of steel-making wastewater treatment process is reduced into Resorcinol as reductive agent with benzoquinones; The ammonium thiosulfate reductive agent has cheap, and is easy to operate, eco-friendly characteristics.The present invention uses the by product ammonium thiosulfate of steel-making wastewater treatment process generation as reductive agent, and benzoquinones is reduced into Resorcinol, and ammonium thiosulfate is oxidized to the ammonium sulfate as fertilizer sources; Raw material of the present invention cheaply is easy to get, and is easy to the industriallization continuous production, and equipment is simple, and is therefore good in economic efficiency; Contamination-free is discharged in producing simultaneously, therefore meets environmental protection and green environment requirement.
Embodiment
A kind of purposes of using the by product ammonium thiosulfate of steel-making wastewater treatment process generation as reductive agent of the present invention; The by product ammonium thiosulfate that the steel-making wastewater treatment process is produced is reduced into Resorcinol as reductive agent with the benzoquinones in the dihydroxy-benzene production process.
Use the first kind method of use of the by product ammonium thiosulfate of above-mentioned steel-making wastewater treatment process generation, comprise following steps as the purposes of reductive agent:
Step 1, benzoquinone obtain Resorcinol through the reduction of agent ammonium thiosulfate, and the mol ratio of benzoquinone and reductive agent ammonium thiosulfate is 1: 1; The ammonium thiosulfate that reduction is used is the thick product that extracts in the steel-making waste water after the useful Chemicals, wherein ammonium thiosulfate mass percentage content: 69.0%-99.5%; Ammonium sulfate mass percentage content: 0.5%-31.0%; Filter out the thick product of Resorcinol, the Resorcinol recrystallization obtains the Resorcinol crystal; Reaction equation is following:
Step 2, with in the step 1, the mother liquor that filters out the thick product gained of Resorcinol concentrates and to obtain ammonium sulfate fertilizer.
Use the second kind method of use of the by product ammonium thiosulfate of above-mentioned steel-making wastewater treatment process generation, comprise following steps as the purposes of reductive agent:
Step 1, benzoquinone obtain Resorcinol through the reduction of agent ammonium thiosulfate, and the mol ratio of benzoquinone and reductive agent ammonium thiosulfate is 1: 2.5; The ammonium thiosulfate that reduction is used is the thick product that extracts in the steel-making waste water after the useful Chemicals, wherein ammonium thiosulfate mass percentage content: 69.0%-99.5%; Ammonium sulfate mass percentage content: 0.5%-31.0%; Filter out the thick product of Resorcinol, the Resorcinol recrystallization obtains the Resorcinol crystal; Reaction equation is following:
Step 2, with in the step 1, the mother liquor that filters out the thick product gained of Resorcinol concentrates and to obtain ammonium sulfate fertilizer;
Step 3, with the ammonium sulfate fertilizer that obtains in the step 2, utilize phasor to isolate pure ammonium sulfate.
Beneficial effect of the present invention is mainly reflected in: the by product ammonium thiosulfate that use steel-making wastewater treatment process of the present invention produces is as the purposes and the method for use thereof of reductive agent; The by product ammonium thiosulfate of using the generation of steel-making wastewater treatment process is reduced into Resorcinol as reductive agent with benzoquinones; The ammonium thiosulfate reductive agent has cheap, and is easy to operate, eco-friendly characteristics.The present invention uses the by product ammonium thiosulfate of steel-making wastewater treatment process generation as reductive agent, and benzoquinones is reduced into Resorcinol, and ammonium thiosulfate is oxidized to the ammonium sulfate as fertilizer sources; Raw material of the present invention cheaply is easy to get, and is easy to the industriallization continuous production, and equipment is simple, and is therefore good in economic efficiency; Contamination-free is discharged in producing simultaneously, therefore meets environmental protection and green environment requirement.
The foregoing description only is explanation technical conceive of the present invention and characteristics; Its purpose is to let the personage that is familiar with this technology can understand content of the present invention and implements; Can not limit protection scope of the present invention with this; All equivalences that spirit is done according to the present invention change or modify, and all should be encompassed in protection scope of the present invention.
Claims (3)
1. purposes of using by product ammonium thiosulfate that the steel-making wastewater treatment process produces as reductive agent; It is characterized in that: the by product ammonium thiosulfate that the wastewater treatment process of will making steel produces is reduced into Resorcinol as reductive agent with the benzoquinones in the dihydroxy-benzene production process.
2. the by product ammonium thiosulfate of a use steel-making wastewater treatment process according to claim 1 generation comprises following steps as the method for use of the purposes of reductive agent:
Step 1, benzoquinone obtain Resorcinol through the reduction of agent ammonium thiosulfate, and the mol ratio of benzoquinone and reductive agent ammonium thiosulfate is 1: 1-2.5; The ammonium thiosulfate that reduction is used is the thick product that extracts in the steel-making waste water after the useful Chemicals, wherein ammonium thiosulfate mass percentage content: 69.0%-99.5%; Ammonium sulfate mass percentage content: 0.5%-31.0%; Filter out the thick product of Resorcinol, the Resorcinol recrystallization obtains the Resorcinol crystal;
Step 2, with in the step 1, the mother liquor that filters out the thick product gained of Resorcinol concentrates and to obtain ammonium sulfate fertilizer.
3. the by product ammonium thiosulfate that use steel-making wastewater treatment process according to claim 2 produces is as the method for use of the purposes of reductive agent; It is characterized in that: also comprise step 3, with the ammonium sulfate fertilizer that obtains in the step 2, utilize phasor to isolate pure ammonium sulfate.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104557470A (en) * | 2015-01-23 | 2015-04-29 | 湖北开元化工科技股份有限公司 | Method for reducing para-benzoquinone into hydroquinone by using sulfur reducer |
| CN104672474A (en) * | 2015-02-13 | 2015-06-03 | 苏州久王环保科技股份有限公司 | Novel method for vulcanizing natural rubber by using byproduct ammonium thiosulfate recycled from coking desulfurization waste liquor |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102351656A (en) * | 2011-11-02 | 2012-02-15 | 南京信息工程大学 | Synthesis method of hydroquinone |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102351656A (en) * | 2011-11-02 | 2012-02-15 | 南京信息工程大学 | Synthesis method of hydroquinone |
Non-Patent Citations (4)
| Title |
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| 《中国医药工业杂志》 20081231 潘林玉 等 "1，4-苯醌还原成对苯二酚" 第122页 1-3 第39卷, 第2期 * |
| 《化工生产与技术》 20111231 姜亚娟 等 "对苯二酚的合成与应用研究进展" 第50-54页 1-3 第18卷, 第1期 * |
| 姜亚娟 等: ""对苯二酚的合成与应用研究进展"", 《化工生产与技术》 * |
| 潘林玉 等: ""1，4-苯醌还原成对苯二酚"", 《中国医药工业杂志》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104557470A (en) * | 2015-01-23 | 2015-04-29 | 湖北开元化工科技股份有限公司 | Method for reducing para-benzoquinone into hydroquinone by using sulfur reducer |
| CN104672474A (en) * | 2015-02-13 | 2015-06-03 | 苏州久王环保科技股份有限公司 | Novel method for vulcanizing natural rubber by using byproduct ammonium thiosulfate recycled from coking desulfurization waste liquor |
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| CN102603489B (en) | 2013-12-18 |
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Address after: 215159 Jiangsu city of Suzhou province Wuzhong District Guangfu Industrial Park East Suzhou Long Wang ammonium Technology Co. Ltd. Patentee after: Suzhou Jiuwang Environmental Protection Science & Technology Co., Ltd. Address before: 215159 Jiangsu city of Suzhou province Wuzhong District Guangfu Industrial Park East Suzhou Long Wang ammonium Technology Co. Ltd. Patentee before: Suzhou Jiuwang Multiple Ammonium Salt Technology Co., Ltd. |
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Owner name: SUZHOU JIUWANG ENVIRONMENTAL PROTECTION TECHNOLOGY Free format text: FORMER NAME: SUZHOU JIUWANG MULTIPLE AMMONIUM SALT TECHNOLOGY CO., LTD. |
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Address after: Guangfu town Wuzhong District Huaqiao village in Suzhou City, Jiangsu province 215159 Suzhou Long Wang environmental Polytron Technologies Inc Patentee after: Suzhou Jiuwang Environmental Protection Technology Co., Ltd. Address before: 215159 Jiangsu city of Suzhou province Wuzhong District Guangfu Industrial Park East Suzhou Long Wang ammonium Technology Co. Ltd. Patentee before: Suzhou Jiuwang Environmental Protection Science & Technology Co., Ltd. |
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Granted publication date: 20131218 Termination date: 20170209 |