CN203728751U - Dimethyldichlorosilane continuously pressurized hydrolysis loop system - Google Patents
Dimethyldichlorosilane continuously pressurized hydrolysis loop system Download PDFInfo
- Publication number
- CN203728751U CN203728751U CN201420056514.4U CN201420056514U CN203728751U CN 203728751 U CN203728751 U CN 203728751U CN 201420056514 U CN201420056514 U CN 201420056514U CN 203728751 U CN203728751 U CN 203728751U
- Authority
- CN
- China
- Prior art keywords
- hydrolysis
- separator
- outlet
- oleic acid
- static mixer
- 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.)
- Expired - Lifetime
Links
- 230000007062 hydrolysis Effects 0.000 title claims abstract description 34
- 238000006460 hydrolysis reaction Methods 0.000 title claims abstract description 34
- LIKFHECYJZWXFJ-UHFFFAOYSA-N dimethyldichlorosilane Chemical compound C[Si](C)(Cl)Cl LIKFHECYJZWXFJ-UHFFFAOYSA-N 0.000 title claims abstract description 12
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims abstract description 30
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 claims abstract description 19
- LQJBNNIYVWPHFW-UHFFFAOYSA-N 20:1omega9c fatty acid Natural products CCCCCCCCCCC=CCCCCCCCC(O)=O LQJBNNIYVWPHFW-UHFFFAOYSA-N 0.000 claims abstract description 19
- QSBYPNXLFMSGKH-UHFFFAOYSA-N 9-Heptadecensaeure Natural products CCCCCCCC=CCCCCCCCC(O)=O QSBYPNXLFMSGKH-UHFFFAOYSA-N 0.000 claims abstract description 19
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 claims abstract description 19
- 239000005642 Oleic acid Substances 0.000 claims abstract description 19
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 claims abstract description 19
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 claims abstract description 19
- 230000003068 static effect Effects 0.000 claims abstract description 18
- 239000007788 liquid Substances 0.000 claims abstract description 17
- 229910000041 hydrogen chloride Inorganic materials 0.000 claims abstract description 4
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 claims abstract description 4
- 238000012856 packing Methods 0.000 claims description 17
- QABCGOSYZHCPGN-UHFFFAOYSA-N chloro(dimethyl)silicon Chemical compound C[Si](C)Cl QABCGOSYZHCPGN-UHFFFAOYSA-N 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 239000000945 filler Substances 0.000 claims description 6
- 238000006386 neutralization reaction Methods 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 claims description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 2
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 claims description 2
- 229910002804 graphite Inorganic materials 0.000 claims description 2
- 239000010439 graphite Substances 0.000 claims description 2
- 239000003513 alkali Substances 0.000 abstract description 5
- 239000002253 acid Substances 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 3
- 238000000926 separation method Methods 0.000 abstract description 3
- 239000000463 material Substances 0.000 abstract description 2
- 150000007513 acids Chemical class 0.000 abstract 1
- 125000004122 cyclic group Chemical group 0.000 abstract 1
- 239000000413 hydrolysate Substances 0.000 abstract 1
- 239000002699 waste material Substances 0.000 abstract 1
- 238000005903 acid hydrolysis reaction Methods 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004205 dimethyl polysiloxane Substances 0.000 description 1
- 238000004945 emulsification Methods 0.000 description 1
- 230000003301 hydrolyzing effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005554 pickling Methods 0.000 description 1
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 description 1
- -1 polydimethylsiloxane Polymers 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Abstract
The utility model discloses a dimethyldichlorosilane continuously pressurized hydrolysis loop system. The hydrolysis loop system comprises a static mixer, a packed tower reactor, a hydrolysis circulating pump, a heat exchanger, a gas-liquid separator, an oleic acid separator and a hydrochloric acid storage tank, wherein the static mixer, the packed tower reactor, the hydrolysis circulating pump and the heat exchanger are connected in sequence; the heat exchanger is connected with the gas-liquid separator; the gas-liquid separator is connected with the oleic acid separator; the bottom of the oleic acid separator is connected with the hydrochloric acid storage tank; an outlet of the hydrochloric acid storage tank is connected with the static mixer; the oleic acid separator is connected with a hydrolysate after-treatment system; a top outlet of the gas-liquid separator is connected with a hydrogen chloride collecting system. The hydrolysis loop system provided by the utility model greatly improves the efficiency of oleic acid separation, reduces discharge of waste acids, alkali liquor and alkali residues and achieves separation and cyclic utilization of material components in the hydrolysis process.
Description
Technical field
The utility model relates to a kind of dimethyldichlorosilane(DMCS) continuous pressure hydrolysis loop system, belongs to field of chemical technology.
Background technology
At present, the method that polydimethylsiloxane is prepared in dimethyldichlorosilane(DMCS) hydrolysis mainly contains two kinds of azeotropic acid hydrolysis and Concentrated acid hydrolysis.The hydrolyzate that Concentrated acid hydrolysis obtains is very difficult with separating of hydrochloric acid, needs multistage pickling, alkali cleaning, and wash the chlorine ion concentration that just can make in hydrolyzate and reduce, and alkaline cleaning procedure can produce a large amount of waste water.In addition, because the density difference of concentrated acid and hydrolyzate is smaller, in water washing process, very easily there is emulsification in hydrolyzate, thereby cause can not effectively reducing the chlorine ion concentration in hydrolyzate through multistage washing and alkali cleaning.
Summary of the invention
The purpose of this utility model is to provide a kind of dimethyldichlorosilane(DMCS) continuous pressure hydrolysis loop system.
What the utility model solved is the problems such as existing hydrolysis system production efficiency is low, and wastewater flow rate is high, hydrolyzate quality is unstable.
The utility model solves the problems of the technologies described above adopted technical scheme: a kind of dimethyldichlorosilane(DMCS) continuous pressure hydrolysis loop system, and described hydrolysis system comprises static mixer, packing tower reactor, hydrolysis recycle pump, interchanger, gas-liquid separator, oleic acid separator and hydrochloric acid tank; The outlet of described static mixer is connected with the entrance of described packing tower reactor; The outlet of described packing tower reactor is connected with the entrance of described hydrolysis recycle pump; Described hydrolysis circulation pump outlet is connected with the entrance of described interchanger; The outlet of described interchanger is connected with the entrance of described gas-liquid separator; The outlet at bottom of described gas-liquid separator is connected with the entrance of described oleic acid separator; The outlet at bottom place of described oleic acid separator is connected with hydrochloric acid tank; The outlet of described hydrochloric acid tank is connected with the entrance of described static mixer; The top exit of described oleic acid separator is connected with hydrolyzate after-treatment system; The top exit of described gas-liquid separator is connected with hydrogenchloride gathering system; Described static mixer, packed column reactor, hydrolysis recycle pump and interchanger form a loop.
In described static mixer and packing tower reactor, filler is all housed; Described filler is the wherein one in urethane structured packing or tetrafluoroethylene dumped packing.
Described interchanger is the wherein one in graphite heat exchanger or stainless steel tubular heat exchange.
Described hydrolyzate after-treatment system comprises one-level water scrubber, neutralization reactor and secondary water scrubber.
The beneficial effects of the utility model are: compared with prior art, the continuous pressure hydrolysis loop system that the utility model provides, adopts gas-liquid separator and oleic acid separator to be separated, and has greatly improved the efficiency that oleic acid separates; Reduce the discharge of spent acid, alkali lye and alkaline residue; Realize separation and the recycle of material component in hydrolytic process simultaneously, effectively improved yield and the quality of hydrolyzate.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail.
A kind of dimethyldichlorosilane(DMCS) continuous pressure hydrolysis loop system, described hydrolysis system comprises static mixer 7, packing tower reactor 6, hydrolysis recycle pump 4, interchanger 5, gas-liquid separator 8, oleic acid separator 2 and hydrochloric acid tank 3; The outlet of described static mixer 7 is connected with the entrance of described packing tower reactor 6; The outlet of described packing tower reactor 6 is connected with the entrance of described hydrolysis recycle pump 4; The outlet of described hydrolysis recycle pump 4 is connected with the entrance of described interchanger 5; The outlet of described interchanger 5 is connected with the entrance of described gas-liquid separator 8; The outlet at bottom of described gas-liquid separator 8 is connected with the entrance of described oleic acid separator 2; The outlet at bottom place of described oleic acid separator 2 is connected with hydrochloric acid tank 3; The outlet of described hydrochloric acid tank 3 is connected with the entrance of described static mixer 7; The top exit of described oleic acid separator 2 is connected with hydrolyzate after-treatment system 1; The top exit of described gas-liquid separator 8 is connected with hydrogenchloride gathering system 9; Described static mixer 7, packed column reactor 6, hydrolysis recycle pump 4 and interchanger 5 form a loop.The interior filler that is all equipped with of described static mixer 7 and packing tower reactor 6; Described filler is tetrafluoroethylene dumped packing.Described interchanger 5 is stainless steel tubular heat exchange.Described hydrolyzate after-treatment system 1 comprises one-level water scrubber, neutralization reactor and secondary water scrubber.
Claims (4)
1. a dimethyldichlorosilane(DMCS) continuous pressure hydrolysis loop system, is characterized in that described hydrolysis system comprises static mixer (7), packing tower reactor (6), hydrolysis recycle pump (4), interchanger (5), gas-liquid separator (8), oleic acid separator (2) and hydrochloric acid tank (3); The outlet of described static mixer (7) is connected with the entrance of described packing tower reactor (6); The outlet of described packing tower reactor (6) is connected with the entrance of described hydrolysis recycle pump (4); The outlet of described hydrolysis recycle pump (4) is connected with the entrance of described interchanger (5); The outlet of described interchanger (5) is connected with the entrance of described gas-liquid separator (8); The outlet at bottom of described gas-liquid separator (8) is connected with the entrance of described oleic acid separator (2); The outlet at bottom place of described oleic acid separator (2) is connected with hydrochloric acid tank (3); The outlet of described hydrochloric acid tank (3) is connected with the entrance of described static mixer (7); The top of described oleic acid separator (2) is provided with hydrolyzate after-treatment system (1); The top of described gas-liquid separator (8) is provided with hydrogenchloride gathering system (9); Described static mixer (7), packed column reactor (6), hydrolysis recycle pump (4) and interchanger (5) form a loop.
2. a kind of dimethyldichlorosilane(DMCS) continuous pressure hydrolysis loop system according to claim 1, is characterized in that, in described static mixer (7) and packing tower reactor (6), filler is all housed; Described filler is the wherein one in urethane structured packing or tetrafluoroethylene dumped packing.
3. a kind of dimethyldichlorosilane(DMCS) continuous pressure hydrolysis loop system according to claim 1, is characterized in that described interchanger (5) is for the wherein one in graphite heat exchanger or stainless steel tubular heat exchange.
4. a kind of dimethyldichlorosilane(DMCS) continuous pressure hydrolysis loop system according to claim 1, is characterized in that described hydrolyzate after-treatment system (1) comprises one-level water scrubber, neutralization reactor and secondary water scrubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420056514.4U CN203728751U (en) | 2014-01-29 | 2014-01-29 | Dimethyldichlorosilane continuously pressurized hydrolysis loop system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420056514.4U CN203728751U (en) | 2014-01-29 | 2014-01-29 | Dimethyldichlorosilane continuously pressurized hydrolysis loop system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203728751U true CN203728751U (en) | 2014-07-23 |
Family
ID=51198837
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420056514.4U Expired - Lifetime CN203728751U (en) | 2014-01-29 | 2014-01-29 | Dimethyldichlorosilane continuously pressurized hydrolysis loop system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203728751U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113797605A (en) * | 2021-09-30 | 2021-12-17 | 镇江江南化工有限公司 | A dewatering device for dimethyl dichlorosilane hydrolysate |
| CN116003797A (en) * | 2022-12-08 | 2023-04-25 | 唐山三友硅业有限责任公司 | High-boiling silicone oil production process and production system |
-
2014
- 2014-01-29 CN CN201420056514.4U patent/CN203728751U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113797605A (en) * | 2021-09-30 | 2021-12-17 | 镇江江南化工有限公司 | A dewatering device for dimethyl dichlorosilane hydrolysate |
| CN116003797A (en) * | 2022-12-08 | 2023-04-25 | 唐山三友硅业有限责任公司 | High-boiling silicone oil production process and production system |
| CN116003797B (en) * | 2022-12-08 | 2024-02-23 | 唐山三友硅业股份有限公司 | High-boiling silicone oil production process and production system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: HOSHINE SILICON CO., LTD. Free format text: FORMER NAME: ZHEJIANG HESHENG SILICON INDUSTRY CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: Jiaxing City, Zhejiang province 314201 Zhapu Zhen Ya Mountain Road No. 530 Patentee after: HOSHINE SILICON INDUSTRY CO.,LTD. Address before: 314200 Zhejiang province Pinghu Zhapu Zhen Ya Shan Road No. 530 Patentee before: ZHEJIANG HESHENG SILICON INDUSTRY Co.,Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20140723 |
|
| CX01 | Expiry of patent term |