CN106185809A - The method and device that in the production of a kind of thionyl chloride, chlorine efficiently utilizes - Google Patents
The method and device that in the production of a kind of thionyl chloride, chlorine efficiently utilizes Download PDFInfo
- Publication number
- CN106185809A CN106185809A CN201610524013.8A CN201610524013A CN106185809A CN 106185809 A CN106185809 A CN 106185809A CN 201610524013 A CN201610524013 A CN 201610524013A CN 106185809 A CN106185809 A CN 106185809A
- Authority
- CN
- China
- Prior art keywords
- sulfur
- sulfur monochloride
- monochloride
- chlorine
- thionyl chloride
- 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.)
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B7/00—Halogens; Halogen acids
- C01B7/01—Chlorine; Hydrogen chloride
- C01B7/07—Purification ; Separation
- C01B7/0743—Purification ; Separation of gaseous or dissolved chlorine
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
- B01D53/18—Absorbing units; Liquid distributors therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/20—Halogens or halogen compounds
- B01D2257/202—Single element halogens
- B01D2257/2025—Chlorine
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The invention belongs to thionyl chloride production technical field, relate generally to the method and device that during a kind of thionyl chloride produces, chlorine efficiently utilizes.Said method comprising the steps of: (a) crude product groove and the tail gas joining the release of sulfur still enter sulfur monochloride absorption tower, absorption pump beat the sulfur monochloride in circulation sulfur monochloride tourie and absorb chlorine therein generation sulfur dichloride；B () gained sulfur dichloride and sulfur monochloride mixed liquor are delivered to sulfur monochloride head tank through absorption pump；(c) mixed liquor from sulfur monochloride head tank enter chlorination tank, with after through sulfur dichloride surge tank enter synthesizer recycle.The present invention substantially increases chlorine utilization, and in making thionyl chloride produce, chlorine consumption reaches more than 99.3% close to theoretical unit consumption, thionyl chloride yield；Decrease the consumption of liquid caustic soda in tail gas absorbing system, liquid caustic soda consumption reduces 5%.
Description
Technical field
The invention belongs to thionyl chloride production technical field, relate generally to what chlorine during a kind of thionyl chloride produces efficiently utilized
Method and device.
Background technology
Thionyl chloride (SOCl2) it is the developing important fine chemical material of Chinese national economy.Former State Scientific and Technological Commission issues
" country new high-tech product catalogue " in, " medicine, veterinary drug, pesticide, intermediate and product " is classified as new high-tech product.State
The Technology of interior production thionyl chloride has chlorosulfonic acid method, co-production method, sulfur trioxide method and sulfur dioxide gas phase method 4 kinds.Dioxy
Change sulfur vapor phase method producing thionyl chloride primary raw material is SO2、Cl2、S2Cl2, its reaction equation is: S2Cl2+Cl2→SCl2SO2+
Cl2+SCl2→SOCl2
The incomplete tail gas of partial reaction in production process, main component is chlorine, sulfur dioxide, the steaming of a small amount of thionyl chloride
Vapour, enters Pei Liu workshop section with thionyl chloride crude product, is directly entered follow-up tail gas absorption at crude product groove with joining to discharge in sulfur still
System, not only makes chlorine unit consumption in production process increase, is also consumed by a large amount of liquid caustic soda, causes environmental pollution.
Summary of the invention
For solving the above-mentioned problems in the prior art, it is an object of the invention to provide chlorine during a kind of thionyl chloride produces
The method and device that upward adverse flow of QI effect utilizes.
The technical solution used in the present invention is as follows:
A kind of method that in thionyl chloride production process, chlorine efficiently utilizes, comprises the following steps:
A () crude product groove and the tail gas joining the release of sulfur still enter sulfur monochloride absorption tower, absorption pump beat circulation sulfur monochloride
Sulfur monochloride in tourie absorbs chlorine therein and generates sulfur dichloride；
B () gained sulfur dichloride and sulfur monochloride mixed liquor are delivered to sulfur monochloride head tank through absorption pump；
(c) mixed liquor from sulfur monochloride head tank enter chlorination tank, with after through sulfur dichloride surge tank enter synthesizer follow
Ring uses.
In described step (a), remaining tail gas enters sulfur dioxide reclaiming system.
A kind of realize the device of chlorine Efficient utilization method in described thionyl chloride production process, including crude product groove, join sulfur
Still, sulfur monochloride absorption tower and sulfur monochloride head tank, crude product groove, join sulfur still and be connected with top, sulfur monochloride absorption tower, a chlorine
Change bottom sulfur absorption tower and be sequentially connected with sulfur monochloride tourie, absorption pump, and absorption pump also with sulfur monochloride absorption tower and
Disulfur dichloride head tank connects, and described sulfur monochloride head tank is sequentially connected with chlorination tank, sulfur dichloride surge tank, synthesizer.
Compared with prior art, the present invention has a following Advantageous Effects:
The present invention uses sulfur monochloride absorption tower that the chlorine absorption in discharged for Pei Liu workshop section tail gas is formed sulfur monochloride
With deliver to sulfur monochloride head tank through absorption pump after sulfur dichloride mixed liquor and then enter chlorination tank, synthesizer and recycle, greatly
Improve greatly chlorine utilization, in making thionyl chloride produce, chlorine consumption reaches close to theoretical unit consumption, thionyl chloride yield
More than 99.3%；Decrease the consumption of liquid caustic soda in tail gas absorbing system, liquid caustic soda consumption reduces 5%.
Accompanying drawing explanation
Fig. 1 is the technological process of production schematic diagram of the present invention；
Reference shown in figure is: 1-sulfur monochloride head tank, 2-chlorination tank, 3-sulfur dichloride surge tank, and 4-synthesizes
Device, 5-crude product groove, 6-joins sulfur still, 7-sulfur monochloride absorption tower, 8-sulfur monochloride tourie, 9-absorption pump.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is further explained:
Embodiment 1
A kind of method that in thionyl chloride production process, chlorine efficiently utilizes, comprises the following steps:
A () crude product groove 5 and the tail gas discharged in joining sulfur still 6, main component is chlorine, sulfur dioxide, a small amount of protochloride
Sulfone steam, temperature 30～40 DEG C, enter sulfur monochloride absorption tower 7, by absorption pump 9 dozens circulation sulfur monochloride tourie 8
Disulfur dichloride absorbs the chlorine of wherein 99.5% and generates sulfur dichloride, and remaining tail gas enters sulfur dioxide reclaiming system；
By absorption pump 9, sulfur dichloride and sulfur monochloride mixed liquor are delivered to a chlorine b chlorine absorption terminates in () tail gas after
Change sulfur head tank 1；
C () sulfur dichloride and sulfur monochloride mixed liquor are entered chlorination tank 2 by sulfur monochloride head tank 1, with after through dichloride
Sulfur surge tank 3 enters synthesizer 4 and recycles, and improves chlorine utilization, and sulphoxide chloride product yield reaches more than 99.3%.
The device of chlorine Efficient utilization method in described thionyl chloride production process is realized, including thick as it is shown in figure 1, a kind of
Product groove 5, join sulfur still 6, sulfur monochloride absorption tower 7 and sulfur monochloride head tank 1, crude product groove 5, join sulfur still 6 and absorb with sulfur monochloride
Tower 7 top connects, and is sequentially connected with sulfur monochloride tourie 8, absorption pump 9 bottom sulfur monochloride absorption tower 7, and absorption pump 9 is also
It is connected with sulfur monochloride absorption tower 7 and sulfur monochloride head tank 1, described sulfur monochloride head tank 1 and chlorination tank 2, sulfur dichloride
Surge tank 3, synthesizer 4 are sequentially connected with.
Claims (3)
1. the method that during a thionyl chloride produces, chlorine efficiently utilizes, it is characterised in that comprise the following steps:
A () crude product groove (5) and join the tail gas that sulfur still (6) discharges and enter sulfur monochloride absorption tower (7), is played circulation by absorption pump (9)
Sulfur monochloride in sulfur monochloride tourie (8) absorbs chlorine therein and generates sulfur dichloride；
B () gained sulfur dichloride and sulfur monochloride mixed liquor are delivered to sulfur monochloride head tank (1) through absorption pump (9)；
(c) mixed liquor from sulfur monochloride head tank (1) enter chlorination tank (2), with after through sulfur dichloride surge tank (3) enter synthesis
Device (4) recycles.
The method that in a kind of thionyl chloride the most according to claim 1 production, chlorine efficiently utilizes, it is characterised in that described
In step (a), remaining tail gas enters sulfur dioxide reclaiming system.
3. realize a device for chlorine Efficient utilization method during thionyl chloride described in claim 1-2 any one produces, its
It is characterised by, including crude product groove (5), joins sulfur still (6), sulfur monochloride absorption tower (7) and sulfur monochloride head tank (1), crude product groove
(5), join sulfur still (6) to be connected with sulfur monochloride absorption tower (7) top, with sulfur monochloride absorption bottom sulfur monochloride absorption tower (7)
Tank (8), absorption pump (9) are sequentially connected with, and absorption pump (9) also connects with sulfur monochloride absorption tower (7) and sulfur monochloride head tank (1)
Connecing, described sulfur monochloride head tank (1) is sequentially connected with chlorination tank (2), sulfur dichloride surge tank (3), synthesizer (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610524013.8A CN106185809B (en) | 2016-07-04 | 2016-07-04 | Method and apparatus for high-effectively utilizing chlorine in production of sulfoxide chloride |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610524013.8A CN106185809B (en) | 2016-07-04 | 2016-07-04 | Method and apparatus for high-effectively utilizing chlorine in production of sulfoxide chloride |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106185809A true CN106185809A (en) | 2016-12-07 |
| CN106185809B CN106185809B (en) | 2017-05-03 |
Family
ID=57466176
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610524013.8A Active CN106185809B (en) | 2016-07-04 | 2016-07-04 | Method and apparatus for high-effectively utilizing chlorine in production of sulfoxide chloride |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106185809B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106829878A (en) * | 2016-12-20 | 2017-06-13 | 湖南海利常德农药化工有限公司 | Dichloride sulphur preparing process and preparation facilities |
| CN110980629A (en) * | 2019-12-31 | 2020-04-10 | 宁夏丰华生物科技有限公司 | Liquid chlorine unloading crane pipe tail gas recycling process |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101284653A (en) * | 2008-01-30 | 2008-10-15 | 江西电化精细化工有限责任公司 | Gas phase circulation method in synthesis of thionyl chloride |
| CN101284652A (en) * | 2008-01-30 | 2008-10-15 | 江西电化精细化工有限责任公司 | Liquid phase circulation method in synthesis of thionyl chloride |
| CN101412503A (en) * | 2008-01-30 | 2009-04-22 | 江西世龙实业股份有限公司 | Method for synthesizing thionyl chloride with crude product thionyl chloride as raw material |
| CN103049620A (en) * | 2013-01-09 | 2013-04-17 | 江南造船(集团)有限责任公司 | Ship simulating system and ship simulating method used during shipbuilding |
| CN104108686A (en) * | 2014-07-31 | 2014-10-22 | 江西世龙实业股份有限公司 | Pressure-relief discharge, absorption, treatment and recycling method in production process of thionyl chloride |
-
2016
- 2016-07-04 CN CN201610524013.8A patent/CN106185809B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101284653A (en) * | 2008-01-30 | 2008-10-15 | 江西电化精细化工有限责任公司 | Gas phase circulation method in synthesis of thionyl chloride |
| CN101284652A (en) * | 2008-01-30 | 2008-10-15 | 江西电化精细化工有限责任公司 | Liquid phase circulation method in synthesis of thionyl chloride |
| CN101412503A (en) * | 2008-01-30 | 2009-04-22 | 江西世龙实业股份有限公司 | Method for synthesizing thionyl chloride with crude product thionyl chloride as raw material |
| CN103049620A (en) * | 2013-01-09 | 2013-04-17 | 江南造船(集团)有限责任公司 | Ship simulating system and ship simulating method used during shipbuilding |
| CN104108686A (en) * | 2014-07-31 | 2014-10-22 | 江西世龙实业股份有限公司 | Pressure-relief discharge, absorption, treatment and recycling method in production process of thionyl chloride |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106829878A (en) * | 2016-12-20 | 2017-06-13 | 湖南海利常德农药化工有限公司 | Dichloride sulphur preparing process and preparation facilities |
| CN106829878B (en) * | 2016-12-20 | 2019-01-04 | 湖南海利常德农药化工有限公司 | Dichloride sulphur preparing process and preparation facilities |
| CN110980629A (en) * | 2019-12-31 | 2020-04-10 | 宁夏丰华生物科技有限公司 | Liquid chlorine unloading crane pipe tail gas recycling process |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106185809B (en) | 2017-05-03 |
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Address after: 266100 No. 196 East Hongkong Road, Laoshan District, Shandong, Qingdao Patentee after: Huizhi engineering Polytron Technologies Inc Address before: 266100 No. 196 East Hongkong Road, Laoshan District, Shandong, Qingdao Patentee before: HUIZHI ENGINEERING SCIENCE & TECHNOLOGY CO., LTD. |