CN201317749Y - Methyl chloride purification buffer tank device - Google Patents
Methyl chloride purification buffer tank device Download PDFInfo
- Publication number
- CN201317749Y CN201317749Y CNU2008201704257U CN200820170425U CN201317749Y CN 201317749 Y CN201317749 Y CN 201317749Y CN U2008201704257 U CNU2008201704257 U CN U2008201704257U CN 200820170425 U CN200820170425 U CN 200820170425U CN 201317749 Y CN201317749 Y CN 201317749Y
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- Prior art keywords
- methyl chloride
- pipeline
- communicated
- valve
- purifying
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Abstract
The utility model discloses a methyl chloride purification buffer tank device which comprises a gas and liquid separation tank, a water scrubber, a purification buffer tank, a methyl chloride storage tank, an alkali scrubber, a vitriol drying tower and a decompression system. The gas and liquid separation tank is communicated with the bottom of the water scrubber through a pipeline; the top of the water scrubber is communicated with the bottom of the alkali scrubber through a pipeline provided with a valve, and a valve and the purification buffer tank are connected at the pipeline; the purification buffer tank is connected with the methyl chloride storage tank through a pipeline which is provided with a pressure regulating valve; the top of the alkali scrubber is communicated with the bottom of the vitriol drying tower through a pipeline which is provided with a valve; and the top of the vitriol drying tower is communicated with the decompression system through a pipeline provided with a valve. The methyl chloride purification buffer tank device is reasonable in structure and design, low in cost and simple in process, and is economic and convenient. The methyl chloride purification buffer tank device ensures the smooth and continuous progress of the whole production process and increases the economic benefits of an organic silicon producing factory.
Description
Technical field
The utility model relates to a kind of methyl chloride purifying surge tank device.
Background technology
Along with continually developing of methyl chloride and derived product thereof, the particularly synthetic monomeric fast development of organochlorosilane, people require to improve day by day to the methyl chloride quality product.But the production equipment of present most of methyl chloride is only as corollary apparatus production, and its purity is difficult to reach market demands.Present stage, the industrial process of methyl chloride mainly was to adopt the methyl alcohol chlorination process of gas and solid phase catalyzing, but its purity is generally 97～99%, contained major impurity has water, methyl alcohol, methyl ether, hydrogenchloride thing etc., the existence of these impurity is extremely harmful to synthetic organochlorosilane, as: can cause Si-Cu contact surface poisoning, principal product Me
2SiCl
2Content descends, and by-products content increases, sometimes even cause and can't make organochlorosilane.In addition, the methyl chloride synthesis technique is the process of a serialization, reaction can not be suspended in process of production, again handle the underproof methyl chloride of purity, the characteristic of material also determines to produce preferably continuously, carry out stably in the methyl chloride synthesis technique, can not only produce more methyl chloride like this, and increased the work-ing life of equipment pipe fitting, this also is a key that reduces cost, increases economic efficiency.
The utility model content
The purpose of this utility model is to provide a kind of methyl chloride purifying surge tank device, and the utility model can carry out the underproof methyl chloride of purity highly purified, obtains purity at the methyl chloride more than 99.99%.The utility model methyl chloride purifying surge tank device, reasonable in design, with low cost, technology simply, not only economy but also convenient and guaranteed whole production technology steadily, carry out continuously, improved the economic benefit of organosilicon manufacturer again.
In order to achieve the above object, the technical solution of the utility model is:
A kind of methyl chloride purifying surge tank device, this device comprises knockout drum, water wash column, the purifying surge tank, the methyl chloride storage tank, soda-wash tower, sulfuric acid tower removes compression system; Knockout drum is communicated with the water wash column bottom by pipeline; The water wash column top is communicated with the soda-wash tower bottom by valvular pipeline is installed, and is connected with valve and purifying surge tank on this pipeline, and the purifying surge tank links to each other with the methyl chloride storage tank by the pipeline that pressure regulator valve is installed; The soda-wash tower top is communicated with the sulfuric acid tower bottom by valvular pipeline is installed, and the sulfuric acid tower top is communicated with removing compression system by valvular pipeline is installed.
The outer wall of described purifying surge tank all is wound with the steam companions that carbon steel pipe processes, and the upper inlet of steam companions is communicated with the hot steam house steward by the pipeline that temperature control valve (TCV) is installed, and the steam companions lower part outlet is communicated with the steam condensation water house steward.
Described sulfuric acid tower adopts three sulfuric acid tower series connection to be provided with.
Beneficial effect of the present invention is: the utility model device can be in not influencing original production equipment under the condition of production of methyl chloride, highly purified methyl chloride, thereby avoided the defective methyl chloride hazardness that production causes to whole organochlorosilane monomer, as: can cause Si-Cu contact surface poisoning, principal product Me
2SiCl
2Content descends, and by-products content increases, sometimes even cause and can't make organochlorosilane.And how the organochlorosilane monomer improves principal product Me in producing
2SiCl
2Content is the emphasis of various countries' research, and high-purity methyl chloride that the utility model is produced helps improving principal product Me
2SiCl
2Selection rate.The utility model methyl chloride purifying surge tank device, reasonable in design, with low cost, technology is simple, not only economy but also convenient, and guaranteed whole production technology steadily, carry out continuously, improved the economic benefit of organosilicon manufacturer again.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
The methyl chloride purifying surge tank device of the utility model indication, as shown in Figure 1, this device comprises knockout drum 1, water wash column 2, purifying surge tank 13, methyl chloride storage tank 8, soda-wash tower 3, sulfuric acid tower 4 removes compression system 7; Knockout drum 1 is communicated with water wash column 2 bottoms by pipeline; Water wash column 2 tops are communicated with soda-wash tower 3 bottoms by the pipeline that valve 16 is installed, and be connected with valve 14 and purifying surge tank 13 on this pipeline, purifying surge tank 13 links to each other with methyl chloride storage tank 8 by the pipeline that pressure regulator valve 9 is installed, the outer wall of purifying surge tank 13 all is wound with the steam companions 11 that carbon steel pipe processes, and the upper inlet of steam companions 11 is communicated with hot steam house steward 12 by the pipeline that temperature control valve (TCV) 15 is installed, and steam companions 11 lower part outlets are communicated with steam condensation water house steward 10; Soda-wash tower 3 tops are communicated with sulfuric acid tower 4 bottoms by the pipeline that valve 5 is installed, and wherein sulfuric acid tower 4 adopts 4 series connection of three sulfuric acid towers to be provided with, and sulfuric acid tower 4 tops are communicated with removing compression system 7 by the pipeline that valve 6 is installed.
The utility model improves original technology, in the methyl chloride production process, between water wash column and soda-wash tower, increase a methyl chloride purifying surge tank, with underproof liquid phase methyl chloride in the storage tank through being pumped to methyl chloride purifying surge tank, again after the heat temperature raising vaporization, can enter soda-wash tower with the thick methyl chloride of just producing of handling through washing, sulfuric acid tower is sent into compression system after handling, the purity of methyl chloride can be brought up to more than 99.99%, it is qualified having guaranteed to be used for organochlorosilane monomer synthetic methyl chloride purity, has guaranteed that also whole methyl chloride production technique can be continuous, carry out stably.
At first underproof methyl chloride in the methyl chloride storage tank 8 is delivered to purifying surge tank 13 through the pipeline of pressure regulator valve 9, the outer wall of purifying surge tank 13 is all twined by the steam companions 11 that carbon steel pipe processes, hot steam among the hot steam house steward 12 is entered this steam companions 11 through the pipeline of temperature control valve (TCV) 15, make the methyl chloride vaporization of the inside, the water of condensation of steam companions 11 bottoms enters steam condensation water house steward 10, the methyl chloride gas of coming out from purifying surge tank 12 tops through the pipeline of valve 14 after the methyl chloride gas of just separating from knockout drum 1 through after water wash column 2 washings enters soda-wash tower 3 alkali cleanings, after the pipeline of valve 5 enters 3 placed in-line sulfuric acid tower 4 dryings, enter compression system 7 from soda-wash tower 3 tops from sulfuric acid tower 4 tops through the pipeline of valve 6.
Methyl chloride traditional mode of production or outsourcing is defective after testing, and wherein moisture content is between 300～500PPm, sometimes nearly to more than the 1000PPm; Dme content is many at 100～200PPm; Methanol content is mostly at 120～240PPm, and HCl content is mostly between 100～200PPm; (can produce normally for guaranteeing the organochlorosilane monomer, methyl chloride purity index is: water content≤20PPm, and dme content≤50PPm, methanol content≤50PPm, HCl content≤50PPm).If the defective methyl chloride of these purity is supplied to organochlorosilane monomer synthesizing section, can cause Si-Cu contact surface poisoning, principal product Me
2SiCl
2Content descends, and by-products content increases, and sometimes even cause and can't make organochlorosilane, therefore, must carry out purifying to these underproof methyl chloride.The utility model improves original production technique, increases a purifying surge tank between water wash column and soda-wash tower, with the defective methyl chloride of these purity through being pumped to methyl chloride purifying surge tank, again after the heat temperature raising vaporization, send into caustic washing system, remove methyl alcohol, HCl; The sulfuric acid dehumidification system is removed moisture content and dme.The methyl chloride purity that obtains after this art breading is more than 99.99%, and wherein water content is at 16～19PPm, and dme content is at 27～38PPm, and methanol content is at 25～36PPm, and HCl content is at 29～42PPm.
Claims (3)
1, a kind of methyl chloride purifying surge tank device, it is characterized in that: this device comprises knockout drum (1), water wash column (2), purifying surge tank (13), methyl chloride storage tank (8), soda-wash tower (3), sulfuric acid tower (4) removes compression system (7); Knockout drum (1) is communicated with water wash column (2) bottom by pipeline; Water wash column (2) top is communicated with soda-wash tower (3) bottom by the pipeline that valve (16) is installed, and be connected with valve (14) and purifying surge tank (13) on this pipeline, purifying surge tank (13) links to each other with methyl chloride storage tank (8) by the pipeline that pressure regulator valve (9) is installed; Soda-wash tower (3) top is communicated with sulfuric acid tower (4) bottom by the pipeline that valve (5) is installed, and sulfuric acid tower (4) top is communicated with removing compression system (7) by the pipeline that valve (6) is installed.
2, methyl chloride purifying surge tank device according to claim 1, it is characterized in that: the outer wall of described purifying surge tank (13) all is wound with the steam companions (11) that carbon steel pipe processes, and the upper inlet of steam companions (11) is communicated with hot steam house steward (12) by the pipeline that temperature control valve (TCV) (15) is installed, and steam companions (11) lower part outlet is communicated with steam condensation water house steward (10).
3, methyl chloride purifying surge tank device according to claim 1 is characterized in that: described sulfuric acid tower (4) adopts three sulfuric acid towers (4) series connection to be provided with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201704257U CN201317749Y (en) | 2008-12-25 | 2008-12-25 | Methyl chloride purification buffer tank device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201704257U CN201317749Y (en) | 2008-12-25 | 2008-12-25 | Methyl chloride purification buffer tank device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201317749Y true CN201317749Y (en) | 2009-09-30 |
Family
ID=41196518
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201704257U Expired - Fee Related CN201317749Y (en) | 2008-12-25 | 2008-12-25 | Methyl chloride purification buffer tank device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201317749Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102351149A (en) * | 2011-06-30 | 2012-02-15 | 仇晓丰 | System for recovering and removing chlorine from hydrogen chloride |
| RU2559882C1 (en) * | 2014-09-18 | 2015-08-20 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Чувашский государственный университет имени И.Н. Ульянова" | Method of neutralising and drying reaction gases from chloromethane production |
| CN109368896A (en) * | 2018-10-25 | 2019-02-22 | 苏州浩波科技股份有限公司 | For recycling the impurity remove device of methylene chloride |
| CN113532020A (en) * | 2021-07-28 | 2021-10-22 | 重庆天原化工有限公司 | Chloromethane compression system |
-
2008
- 2008-12-25 CN CNU2008201704257U patent/CN201317749Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102351149A (en) * | 2011-06-30 | 2012-02-15 | 仇晓丰 | System for recovering and removing chlorine from hydrogen chloride |
| RU2559882C1 (en) * | 2014-09-18 | 2015-08-20 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Чувашский государственный университет имени И.Н. Ульянова" | Method of neutralising and drying reaction gases from chloromethane production |
| CN109368896A (en) * | 2018-10-25 | 2019-02-22 | 苏州浩波科技股份有限公司 | For recycling the impurity remove device of methylene chloride |
| CN113532020A (en) * | 2021-07-28 | 2021-10-22 | 重庆天原化工有限公司 | Chloromethane compression system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090930 Termination date: 20131225 |