CN101955164A - Method for producing and purifying sulfur hexafluoride - Google Patents
Method for producing and purifying sulfur hexafluoride Download PDFInfo
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- CN101955164A CN101955164A CN 201010508764 CN201010508764A CN101955164A CN 101955164 A CN101955164 A CN 101955164A CN 201010508764 CN201010508764 CN 201010508764 CN 201010508764 A CN201010508764 A CN 201010508764A CN 101955164 A CN101955164 A CN 101955164A
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- sulfur hexafluoride
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Abstract
The invention discloses a method for producing and purifying sulfur hexafluoride. A fluoride charging pipe, a reactor of molten sulfur charging pipe, a pyrolyzing tower, a washing tower, an adsorption and drying tower, a booster pump, a primary rectifying tower, a secondary rectifying tower, a vaporizer, a high temperature heat treater, a bypass line and a return pipeline are connected sequentially through a connecting pipeline into a whole. The method has the advantages of solving the environmental pollution problem, along with reasonable process, simple preparation, and produced high-purity sulfur hexafluoride, and is an ideal technique for preparing the sulfur hexafluoride.
Description
Affiliated technical field
The present invention relates to a kind of synthetic technology of preparing of Chemicals, particularly a kind of sulfur hexafluoride is produced the method for purifying, is suitable for the synthetic preparation of chemical industry sulfur hexafluoride.
Background technology
At present, the production technology of sulfur hexafluoride still can not be produced the pure sulfur hexafluoride of preparation also under study for action.
Summary of the invention
Problem to be solved by this invention is, overcomes the deficiencies in the prior art, provides a kind of sulfur hexafluoride to produce the method for purifying.This technology not only technology is reasonable, and preparation is simple, and the sulfur hexafluoride purity height of producing, and has solved problem of environmental pollution.
The technical solution used in the present invention is: the reactor, pyrolysis tower, washing tower, adsorption dry tower, topping-up pump, one-level rectifying tower, two-stage rectification tower, vaporizer, high-temperature heat treatment device, bypass line, the recovery line that are connected with the sulphur liquid adding bottle of fluorine gas filling tube, fusing are linked in sequence by connection line, general assembly one and constituting.
Flow process of the present invention is synthetic by reaction, pyrolysis, alkali cleaning, absorption, rectifying, vaporization and impurity circular treatment unit constitute.At first fluorine gas and molten sulfur react in reactor, synthetic sulfur hexafluoride crude product; The sulfur hexafluoride crude product is through 400 ℃ pyrolysis tower, pyrolytic decomposition ten fluorine two sulphur (S
2F
10), hundred fluorine, two sulphur (S
2F
100); In the 3rd step,, remove acidity and hydrolyzable impurity such as hydrogen fluoride, sulfur tetrafluoride through washing tower; The 4th step entered the adsorption dry tower, removed the low fluorine sulphur compound of moisture and part; The 5th step, utilize two-stage compression rectification tower, remove light constituent impurity CF
4, THC, O
2, N
2And heavy seeds SO
2F
2, CO
2, N
2O, ClO
3F, SF
5OCF
3, must reach the sulfur hexafluoride product of purity requirement at least 99.8% content from the two-stage rectification cat head; In the 6th step, the two-stage rectification bottom product is through after the vaporizer vaporization, through 500-600 ℃ of high-temperature heat treatment device or directly turn back to the fluorine gas filling tube and enter synthesis reactor with fluorine gas as raw material and participate in reaction.
The invention has the beneficial effects as follows that technology is reasonable, preparation is simple, the sulfur hexafluoride purity height of production, and solved problem of environmental pollution.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is a structural representation of the present invention.
Accompanying drawing number is: 1, fluorine gas filling tube, 2, the sulphur liquid adding bottle of fusing, 3, reactor, 4, pyrolysis tower, 5, washing tower, 6, the adsorption dry tower, 7, topping-up pump, 8, one-level rectifying tower, 9, the two-stage rectification tower, 10, vaporizer, 11, high-temperature heat treatment device, 12, bypass line, 13, recovery line, 14, connection line.
Embodiment
With reference to Fig. 1, reactor 3, pyrolysis tower 4, washing tower 5, adsorption dry tower 6, topping-up pump 7, one-level rectifying tower 8, two-stage rectification tower 9, vaporizer 10, high-temperature heat treatment device 11, bypass line 12, the recovery line 13 of sulphur liquid adding bottle 2 that is connected with fluorine gas filling tube 1, fusing is linked in sequence by connection line 14, general assembly one and constituting.
Flow process of the present invention is synthetic by reaction, pyrolysis, alkali cleaning, absorption, rectifying, vaporization and impurity circular treatment unit constitute.At first fluorine gas and molten sulfur react in reactor 3, synthetic sulfur hexafluoride crude product; The sulfur hexafluoride crude product is through 400 ℃ pyrolysis tower 4, pyrolytic decomposition ten fluorine two sulphur (S
2F
10), hundred fluorine, two sulphur (S
2F
100); In the 3rd step,, remove acidity and hydrolyzable impurity such as hydrogen fluoride, sulfur tetrafluoride through washing tower 5; The 4th step entered adsorption dry tower 6, removed the low fluorine sulphur compound of moisture and part; The 5th step, utilize two-stage compression rectification tower 8,9, remove light constituent impurity CF
4, THC, O
2, N
2And heavy seeds SO
2F
2, CO
2, N
2O, ClO
3F, SF
5OCF
3, must reach the sulfur hexafluoride product of purity requirement at least 99.8% content from the two-stage rectification cat head; The 6th step, the two-stage rectification bottom product through vaporizer 10 vaporization after, through 500-600 ℃ of high-temperature heat treatment device 11 or directly turn back to fluorine gas filling tube 1 and enter synthesis reactor 3 with fluorine gas as raw material and participate in reaction.
Technology is reasonable, makes simply, is the easiest desirable technique of sulfur hexafluoride preparation.
Claims (1)
1. a sulfur hexafluoride is produced the method for purifying, it is characterized in that: the reactor, pyrolysis tower, washing tower, adsorption dry tower, topping-up pump, one-level rectifying tower, two-stage rectification tower, vaporizer, high-temperature heat treatment device, bypass line, the recovery line that are connected with the sulphur liquid adding bottle of fluorine gas filling tube, fusing are linked in sequence by connection line, general assembly one and constituting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010508764 CN101955164A (en) | 2010-10-18 | 2010-10-18 | Method for producing and purifying sulfur hexafluoride |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010508764 CN101955164A (en) | 2010-10-18 | 2010-10-18 | Method for producing and purifying sulfur hexafluoride |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101955164A true CN101955164A (en) | 2011-01-26 |
Family
ID=43482793
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010508764 Pending CN101955164A (en) | 2010-10-18 | 2010-10-18 | Method for producing and purifying sulfur hexafluoride |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101955164A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102923673A (en) * | 2012-11-21 | 2013-02-13 | 四川众力氟业有限责任公司 | Purification technology for sulfur hexafluoride |
| CN109224758A (en) * | 2018-09-18 | 2019-01-18 | 河南省日立信股份有限公司 | Liftable type rectifying column sulfur hexafluoride gas reclaiming clean device and method |
| CN111186819A (en) * | 2019-12-20 | 2020-05-22 | 河南平高电气股份有限公司 | Sulfur hexafluoride gas purification system |
| CN111470479A (en) * | 2020-04-29 | 2020-07-31 | 福建德尔科技有限公司 | Purification method of crude sulfur hexafluoride |
| CN113307232A (en) * | 2021-05-20 | 2021-08-27 | 洛阳森蓝化工材料科技有限公司 | Preparation and separation method of sulfur hexafluoride and sulfur tetrafluoride mixed gas |
| CN114832595A (en) * | 2022-04-11 | 2022-08-02 | 福建德尔科技股份有限公司 | Electronic grade sulfur hexafluoride alkali washing device and control method thereof |
Citations (4)
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| CN2165918Y (en) * | 1993-09-14 | 1994-05-25 | 翟本国 | SF6 gas recovery filtering unit |
| JPH119951A (en) * | 1997-06-20 | 1999-01-19 | Hitachi Ltd | Apparatus and method for recovering and refining sf6 gas |
| KR20090045849A (en) * | 2007-11-02 | 2009-05-08 | (주)유성 | The separation, purification and recovery method of hexafluorosulfide and hydrofluorocarbons |
| CN101857202A (en) * | 2010-06-04 | 2010-10-13 | 黎明化工研究院 | Purification method of sulfur hexafluoride and equipment thereof |
-
2010
- 2010-10-18 CN CN 201010508764 patent/CN101955164A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2165918Y (en) * | 1993-09-14 | 1994-05-25 | 翟本国 | SF6 gas recovery filtering unit |
| JPH119951A (en) * | 1997-06-20 | 1999-01-19 | Hitachi Ltd | Apparatus and method for recovering and refining sf6 gas |
| KR20090045849A (en) * | 2007-11-02 | 2009-05-08 | (주)유성 | The separation, purification and recovery method of hexafluorosulfide and hydrofluorocarbons |
| CN101857202A (en) * | 2010-06-04 | 2010-10-13 | 黎明化工研究院 | Purification method of sulfur hexafluoride and equipment thereof |
Non-Patent Citations (1)
| Title |
|---|
| 《无机精细化学品生产技术》 20080731 刘宏等 六氟化硫 化学工业出版社 116-118 1 , 1 * |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102923673A (en) * | 2012-11-21 | 2013-02-13 | 四川众力氟业有限责任公司 | Purification technology for sulfur hexafluoride |
| CN102923673B (en) * | 2012-11-21 | 2014-10-01 | 四川众力氟业有限责任公司 | Purification technology for sulfur hexafluoride |
| CN109224758A (en) * | 2018-09-18 | 2019-01-18 | 河南省日立信股份有限公司 | Liftable type rectifying column sulfur hexafluoride gas reclaiming clean device and method |
| CN109224758B (en) * | 2018-09-18 | 2024-03-29 | 河南省日立信股份有限公司 | Lifting rectifying tower sulfur hexafluoride gas recovery and purification equipment and method |
| CN111186819A (en) * | 2019-12-20 | 2020-05-22 | 河南平高电气股份有限公司 | Sulfur hexafluoride gas purification system |
| CN111186819B (en) * | 2019-12-20 | 2022-03-22 | 河南平高电气股份有限公司 | Sulfur hexafluoride gas purification system |
| CN111470479A (en) * | 2020-04-29 | 2020-07-31 | 福建德尔科技有限公司 | Purification method of crude sulfur hexafluoride |
| CN113307232A (en) * | 2021-05-20 | 2021-08-27 | 洛阳森蓝化工材料科技有限公司 | Preparation and separation method of sulfur hexafluoride and sulfur tetrafluoride mixed gas |
| CN114832595A (en) * | 2022-04-11 | 2022-08-02 | 福建德尔科技股份有限公司 | Electronic grade sulfur hexafluoride alkali washing device and control method thereof |
| CN114832595B (en) * | 2022-04-11 | 2023-02-03 | 福建德尔科技股份有限公司 | Electronic grade sulfur hexafluoride alkali washing device and control method thereof |
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Open date: 20110126 |