CN106185809B - Method and apparatus for high-effectively utilizing chlorine in production of sulfoxide chloride - Google Patents
Method and apparatus for high-effectively utilizing chlorine in production of sulfoxide chloride Download PDFInfo
- Publication number
- CN106185809B CN106185809B CN201610524013.8A CN201610524013A CN106185809B CN 106185809 B CN106185809 B CN 106185809B CN 201610524013 A CN201610524013 A CN 201610524013A CN 106185809 B CN106185809 B CN 106185809B
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- sulfur
- sulfur monochloride
- monochloride
- chlorine
- tank
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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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- 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 the technical field of production of sulfoxide chloride, and mainly relates to a method and an apparatus for high-effectively utilizing chlorine in production of sulfoxide chloride. The method includes the steps of: a) feeding tail gas released from a crude product tank and a sulfur-adding kettle into a sulfur monochloride absorption column, wherein an absorption pump pumps the sulfur monochloride in a sulfur monochloride absorption tank to absorb chlorine in the waste gas to generate sulfur dichloride; b) feeding the sulfur dichloride and sulfur monochloride mixture liquid through the absorption pump to a sulfur monochloride high-altitude tank; and c) feeding the mixture liquid to a chlorination kettle from the sulfur monochloride high-altitude tank, and then feeding the mixed liquid to a synthesizer through a sulfur dichloride buffer tank for recycling use. The method greatly increases utilization rate on chlorine, wherein consumption of chlorine in the production of sulfoxide chloride approximates to theoretical unit consumption. The method is more than 99.3% in yield of the sulfoxide chloride, is reduced in consumption of liquid alkali in a tailing gas absorption system, and reduces use amount of the liquid alkali by 5%.
Description
Technical field
The invention belongs to thionyl chloride production technical field, relates generally to chlorine efficient utilization during a kind of thionyl chloride is produced
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
" national new high-tech product catalogue " in, " medicine, veterinary drug, pesticide, intermediate and product " is classified as into new high-tech product.State
The Technology of interior production thionyl chloride has 4 kinds of chlorosulfonic acid method, co-production method, sulfur trioxide method and sulfur dioxide gas phase method.Dioxy
It is SO to change sulfur vapor phase method production thionyl chloride primary raw material2、Cl2、S2Cl2, its reaction equation is：S2Cl2+Cl2→SCl2SO2+
Cl2+SCl2→SOCl2
The incomplete tail gas of partial reaction in production process, main component are chlorine, sulfur dioxide, the steaming of a small amount of thionyl chloride
Vapour, enters with sulfur workshop section with thionyl chloride crude product, discharges in crude product groove and in matching somebody with somebody sulfur kettle and is directly entered follow-up tail gas absorption
System, in not only making production process, chlorine unit consumption increases, and is also consumed by a large amount of liquid caustic soda, causes environmental pollution.
The content of the invention
To solve the above-mentioned problems in the prior art, it is an object of the invention to provide chlorine in a kind of production of thionyl chloride
The method and device of gas efficient utilization.
The technical solution used in the present invention is as follows：
In a kind of thionyl chloride production process, the method for chlorine efficient utilization, comprises the following steps：
A () crude product groove and the tail gas with the release of sulfur kettle enter sulfur monochloride absorption tower, beat circulation sulfur monochloride by absorption pump
Sulfur monochloride in tourie absorbs chlorine therein and generates sulfur dichloride；
B sulfur dichloride obtained by () and sulfur monochloride mixed liquor Jing absorption pumps are delivered to sulfur monochloride head tank；
C () mixed liquor enters chlorination tank from sulfur monochloride head tank, with after, Jing sulfur dichloride surge tank is followed into synthesizer
Ring is used.
In the step (a), remaining tail gas enters sulfur dioxide reclaiming system.
A kind of device for realizing chlorine Efficient utilization method in the thionyl chloride production process, including crude product groove, with sulfur
Kettle, sulfur monochloride absorption tower and sulfur monochloride head tank, crude product groove, are connected with the top of sulfur monochloride absorption tower with sulfur kettle, a chlorine
Change sulfur absorb tower bottom be sequentially connected with sulfur monochloride tourie, absorption pump, and absorption pump also with sulfur monochloride absorption tower and one
Disulfur dichloride head tank connects, and the sulfur monochloride head tank is sequentially connected with chlorination tank, sulfur dichloride surge tank, synthesizer.
Compared with prior art, the present invention has following Advantageous Effects：
The present invention will form sulfur monochloride with the chlorine absorption in the discharged tail gas of sulfur workshop section using sulfur monochloride absorption tower
Absorb with Jing after sulfur dichloride mixed liquor and be pumped to sulfur monochloride head tank and then recycle into chlorination tank, synthesizer, greatly
Chlorine utilization is improve greatly, chlorine consumption in producing thionyl chloride is close to theory unit consumption, thionyl chloride yield and reaches
More than 99.3%；Reduce the consumption of liquid caustic soda in tail gas absorbing system, liquid caustic soda consumption and reduce 5%.
Description of the drawings
Fig. 1 is the technological process of production schematic diagram of the present invention；
Shown in figure, reference is：1- sulfur monochloride head tanks, 2- chlorination tanks, 3- sulfur dichloride surge tanks, 4- synthesis
Device, 5- crude product grooves, 6- match somebody with somebody sulfur kettle, 7- sulfur monochlorides absorption tower, 8- sulfur monochloride touries, 9- absorption pumps.
Specific embodiment
The present invention is further explained below in conjunction with drawings and Examples：
Embodiment 1
In a kind of thionyl chloride production process, the method for chlorine efficient utilization, comprises the following steps：
A () crude product groove 5 and with the tail gas discharged in sulfur kettle 6, main component is chlorine, sulfur dioxide, a small amount of protochloride
Sulfone steam, 30～40 DEG C of temperature, into sulfur monochloride absorption tower 7, by 9 dozens of circulation sulfur monochloride touries 8 of absorption pump
Disulfur dichloride absorbs wherein 99.5% chlorine and generates sulfur dichloride, and remaining tail gas enters sulfur dioxide reclaiming system；
Sulfur dichloride and sulfur monochloride mixed liquor are delivered to into a chlorine by absorption pump 9 b chlorine absorption terminates in () tail gas after
Change sulfur head tank 1；
C () sulfur dichloride and sulfur monochloride mixed liquor enter chlorination tank 2, the Jing dichlorides with after by sulfur monochloride head tank 1
Sulfur surge tank 3 is recycled into synthesizer 4, improves chlorine utilization, and sulphoxide chloride product yield reaches more than 99.3%.
As shown in figure 1, a kind of device for realizing chlorine Efficient utilization method in the thionyl chloride production process, including it is thick
Product groove 5, with sulfur kettle 6, sulfur monochloride absorption tower 7 and sulfur monochloride head tank 1, crude product groove 5, absorb with sulfur monochloride with sulfur kettle 6
Connect at the top of tower 7,7 bottom of sulfur monochloride absorption tower is sequentially connected with sulfur monochloride tourie 8, absorption pump 9, and absorption pump 9 is also
It is connected with sulfur monochloride absorption tower 7 and sulfur monochloride head tank 1, the sulfur monochloride head tank 1 and chlorination tank 2, sulfur dichloride
Surge tank 3, synthesizer 4 are sequentially connected.
Claims (3)
1. a kind of method that chlorine is utilized in thionyl chloride production, it is characterised in that comprise the following steps：
A () crude product groove (5) and the tail gas discharged with sulfur kettle (6) enter sulfur monochloride absorption tower (7), play circulation by absorption pump (9)
Sulfur monochloride in sulfur monochloride tourie (8) absorbs chlorine therein and generates sulfur dichloride；
B sulfur dichloride obtained by () and sulfur monochloride mixed liquor Jing absorption pumps (9) are delivered to sulfur monochloride head tank (1)；
C from sulfur monochloride head tank (1) into chlorination tank (2), with after, Jing sulfur dichloride surge tank (3) enters synthesis to () mixed liquor
Device (4) is recycled.
2. the method that chlorine is utilized in a kind of thionyl chloride production according to claim 1, it is characterised in that the step
A in (), remaining tail gas enters sulfur dioxide reclaiming system.
3. a kind of device for realizing chlorine Application way in the production of thionyl chloride described in claim 1-2 any one, its feature
It is, including crude product groove (5), with sulfur kettle (6), sulfur monochloride absorption tower (7) and sulfur monochloride head tank (1), crude product groove (5),
It is connected with the top of sulfur monochloride absorption tower (7) with sulfur kettle (6), sulfur monochloride absorption tower (7) bottom and sulfur monochloride tourie
(8), absorption pump (9) is sequentially connected, and absorption pump (9) is also connected with sulfur monochloride absorption tower (7) and sulfur monochloride head tank (1)
Connect, the 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 CN106185809A (en) | 2016-12-07 |
| CN106185809B true CN106185809B (en) | 2017-05-03 |
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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 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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 |
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| Publication number | Publication date |
|---|---|
| CN106185809A (en) | 2016-12-07 |
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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. |