CN201704059U - Hydrogen chloride purifying device - Google Patents
Hydrogen chloride purifying device Download PDFInfo
- Publication number
- CN201704059U CN201704059U CN2010201914017U CN201020191401U CN201704059U CN 201704059 U CN201704059 U CN 201704059U CN 2010201914017 U CN2010201914017 U CN 2010201914017U CN 201020191401 U CN201020191401 U CN 201020191401U CN 201704059 U CN201704059 U CN 201704059U
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- Prior art keywords
- hydrochloric acid
- concentrated hydrochloric
- concentrated
- pipeline
- hydrogen chloride
- Prior art date
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- Expired - Fee Related
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- Gas Separation By Absorption (AREA)
- Treating Waste Gases (AREA)
Abstract
The utility model discloses a hydrogen chloride purifying device, which comprises a concentrated hydrochloric acid washing tower, a filter press and a concentrated hydrochloric acid circulating pump; wherein, a concentrated hydrochloric acid inlet, a concentrated hydrochloric acid circulating inlet and a tower top outlet are arranged at the top part of the concentrated hydrochloric acid washing tower; a hydrogen chloride inlet, a slag outlet and a tower bottom outlet are arranged at the bottom part of the concentrated hydrochloric acid washing tower; the tower bottom outlet is connected with the filter press through a pipe; the filter press is connected with the concentrated hydrochloric acid circulating pump through a pipe; the concentrated hydrochloric acid circulating pump is connected with the concentrated hydrochloric acid circulating inlet through a pipe. The hydrogen chloride purifying device can remove methyl trichlorosilane brought by hydrogen chloride gas produced during methyl trichlorosilane alcohloysis, thereby preventing equipment and pipes from blocking and improving recycling ratio of hydrogen chloride gas.
Description
Technical field
The utility model relates to a kind of hydrogenchloride purification devices.
Background technology
METHYL TRICHLORO SILANE (CH
3SiCl
3) be colourless liquid, have pungent stench, easily deliquescence is met water and is generated methyl siliconic acid (CH
3Si (OH)
3).Methyl siliconic acid is the white powder solid, easily is adsorbed on the equipment pipe wall, causes the obstruction of equipment pipe, thereby influences normal Chemical Manufacture.
The METHYL TRICHLORO SILANE alcoholysis of heavy industrialization is the production process of a serialization.Can constantly generate hydrogen chloride gas in this process, the treatment process of hydrogen chloride gas generally is that water is stored the acid of hydrogen chloride gas bulk absorption salify, perhaps directly delivers to other workshops and reacts as raw material.But because the intrasystem METHYL TRICHLORO SILANE of alcoholysis reaction can enter back system (amount of carrying secretly is about 5%-10%) along with hydrogen chloride gas, this just brings certain problem to production.
Problem one: this hydrogen chloride gas that is entrained with METHYL TRICHLORO SILANE absorbs into hydrochloric acid through absorption system, the equipment and the pipeline very fast blocked (to three day) that will cause absorption system, absorption system can not normally be moved, cause the too high and processing of can only stopping of alcoholysis system pressure.Use even there are many cover absorption units to switch, but, still can not deal with problems because the obstruction process is too fast.
Problem two: this hydrogen chloride gas body and function cuvette that is entrained with METHYL TRICHLORO SILANE absorbs, and can only absorb into dilute hydrochloric acid, and the high slightly hydrogenchloride of concentration will volatilize, and environment is impacted.And the both difficult take-aways of inconvenience storage of a large amount of dilute hydrochloric acid.
Problem three: this hydrogen chloride gas that is entrained with METHYL TRICHLORO SILANE is delivered to other workshops and is reacted as raw material, then can influence the production in other workshops.
Therefore the problem of the removal of impurities of hydrogen chloride gas purification must solve.
The utility model content
The purpose of this utility model is to provide a kind of hydrogenchloride purification devices, device of the present utility model can be removed the METHYL TRICHLORO SILANE that the hydrogen chloride gas that produces in the METHYL TRICHLORO SILANE alcoholysis process is carried secretly, thereby prevent the obstruction of equipment pipe, improve the recovery utilization rate of hydrogen chloride gas.
In order to achieve the above object, the technical solution of the utility model is:
A kind of hydrogenchloride purification devices comprises concentrated hydrochloric acid washing tower, pressure filter and concentrated hydrochloric acid recycle pump, and wherein concentrated hydrochloric acid washing tower top is provided with a concentrated hydrochloric acid inlet, a concentrated hydrochloric acid loop head and a tower top outlet; The concentrated hydrochloric acid wash tower bottoms is provided with a hydrogenchloride inlet, a fast mouth of deslagging and a still bottom outlet; The still bottom outlet links to each other with pressure filter by pipeline, and pressure filter links to each other with the concentrated hydrochloric acid recycle pump by pipeline, and the concentrated hydrochloric acid recycle pump links to each other with the concentrated hydrochloric acid loop head by pipeline.
Described tower top outlet links to each other with falling-film absorber by pipeline, and falling-film absorber links to each other with tail gas absorber with absorption concentrated acid jar respectively by pipeline; Absorbing the concentrated acid jar links to each other with the pipeline of tail gas absorber with the concentrated acid tank field respectively by pipeline.
Between described still bottom outlet and the pressure filter surge pump is installed.
Between the pipeline of described absorption concentrated acid jar and concentrated acid tank field the concentrated acid transferpump is installed.
Beneficial effect of the present invention is: 1, under the prerequisite that does not influence former technology, removed the impurity of carrying secretly in the hydrogen chloride gas, thereby prevent the obstruction of equipment pipe, guaranteed the long-time running of chlorine hydride absorption system energy, can the recovery utilization rate of hydrogen chloride gas be improved greatly for other workshops provide purified hydrogen chloride gas again.2, save lot of manpower and material resources, reduced productive expense, prolonged the production cycle.3, the concentrated hydrochloric acid washing device and the filter-pressing device of Zeng Jiaing, cost is not high, and technology is uncomplicated, not only economy but also practicality.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
A kind of hydrogenchloride purification devices of the utility model indication, as shown in Figure 1, comprise concentrated hydrochloric acid washing tower 1, pressure filter 2 and concentrated hydrochloric acid recycle pump 3, wherein concentrated hydrochloric acid washing tower 1 top is provided with concentrated hydrochloric acid 11, one concentrated hydrochloric acid loop heads 12 of inlet and a tower top outlet 16; Concentrated hydrochloric acid washing tower 1 bottom is provided with hydrogenchloride 13, one slag-drip openings 14 of inlet and a still bottom outlet 15; Still bottom outlet 15 links to each other with pressure filter 2 by pipeline, is provided with surge pump 8 between still bottom outlet 15 and the pressure filter 2; Pressure filter 2 links to each other with concentrated hydrochloric acid recycle pump 3 by pipeline, and concentrated hydrochloric acid recycle pump 3 links to each other with concentrated hydrochloric acid loop head 12 by pipeline.Described tower top outlet 16 links to each other with falling-film absorber 4 by pipeline, and falling-film absorber 4 links to each other with tail gas absorber 6 with absorption concentrated acid jar 5 respectively by pipeline; Absorbing concentrated acid jar 5 links to each other with the pipeline 7 of tail gas absorber 6 and concentrated acid tank field respectively by pipeline.
When apparatus of the present invention are used, 30%～33% concentrated hydrochloric acid enters the mouth from concentrated hydrochloric acid and 11 enters, hydrogenchloride hydrogenchloride at the bottom of the washing Tata enters the mouth and 13 enters, after contacting with concentrated hydrochloric acid from top to down is reverse, METHYL TRICHLORO SILANE of carrying secretly and the concentrated hydrochloric acid generation methyl siliconic acid that reacts, saturated up to concentrated hydrochloric acid, no longer behind the absorbing hydrogen chloride, the hydrogenchloride that the washing back is clean is emitted from tower top outlet 16 and is entered the back operation.Back operation is: will wash the clean hydrogenchloride in back and enter tail gas absorber 6 through falling-film absorber 4 rear sections with the gas form that carries a small amount of concentrated acid, remaining just to carry the hydrogenchloride liquid form of a large amount of concentrated acids, be arranged to enter absorption concentrated acid jar 5 is sent to the concentrated acid tank field again behind concentrated acid transferpump 9 pipeline 7, the acid after tail gas absorber 6 is handled also is sent to the pipeline 7 of concentrated acid tank field by pipeline.
The methyl siliconic acid that the washing back generates is discharged from washing tower still bottom outlet 15, after surge pump 8 is squeezed into pressure filter 2 press filtrations, wherein residual concentrated hydrochloric acid reuses to concentrated hydrochloric acid loop head 12 places through 3 dozens of concentrated hydrochloric acid recycle pumps again, will clear up the back methyl siliconic acid at set intervals and discharge system.Methyl siliconic acid residual in the washing tower can go out the cleaning discharge washing decorum from slag-drip opening at the bottom of the tower 14 when parking maintenance, thereby guarantees that scrubber system itself is not blocked.
Claims (4)
1. hydrogenchloride purification devices, it is characterized in that: comprise concentrated hydrochloric acid washing tower (1), pressure filter (2) and concentrated hydrochloric acid recycle pump (3), wherein concentrated hydrochloric acid washing tower (1) top is provided with a concentrated hydrochloric acid inlet (11), a concentrated hydrochloric acid loop head (12) and a tower top outlet (16); Concentrated hydrochloric acid washing tower (1) bottom is provided with a hydrogenchloride inlet (13), goes out (15) at the bottom of fast mouthful (14) of deslagging and a still; Still bottom outlet (15) links to each other with pressure filter (2) by pipeline, and pressure filter (2) links to each other with concentrated hydrochloric acid recycle pump (3) by pipeline, and concentrated hydrochloric acid recycle pump (3) links to each other with concentrated hydrochloric acid loop head (12) by pipeline.
2. hydrogenchloride purification devices according to claim 1, it is characterized in that: described tower top outlet (16) links to each other with falling-film absorber (4) by pipeline, and falling-film absorber (4) links to each other with tail gas absorber (6) with absorption concentrated acid jar (5) respectively by pipeline; Absorbing concentrated acid jar (5) links to each other with the pipeline (7) of tail gas absorber (6) and concentrated acid tank field respectively by pipeline.
3. hydrogenchloride purification devices according to claim 1 is characterized in that: between described still bottom outlet (15) and the pressure filter (2) surge pump (8) is installed.
4. hydrogenchloride purification devices according to claim 2 is characterized in that: between the pipeline (7) of described absorption concentrated acid jar (5) and concentrated acid tank field concentrated acid transferpump (9) is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201914017U CN201704059U (en) | 2010-05-14 | 2010-05-14 | Hydrogen chloride purifying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201914017U CN201704059U (en) | 2010-05-14 | 2010-05-14 | Hydrogen chloride purifying device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201704059U true CN201704059U (en) | 2011-01-12 |
Family
ID=43441215
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201914017U Expired - Fee Related CN201704059U (en) | 2010-05-14 | 2010-05-14 | Hydrogen chloride purifying device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201704059U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102580336A (en) * | 2012-01-12 | 2012-07-18 | 天津大学 | Device and method for purifying volatile inorganic acid reagent |
| CN109069992A (en) * | 2016-05-03 | 2018-12-21 | 阿科玛法国公司 | Hydrochloric acid purification process and equipment |
| CN110183479A (en) * | 2019-06-17 | 2019-08-30 | 鲁西化工集团股份有限公司 | A kind of system and technique of the hydrolysis of low pressure dimethyldichlorosilane |
-
2010
- 2010-05-14 CN CN2010201914017U patent/CN201704059U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102580336A (en) * | 2012-01-12 | 2012-07-18 | 天津大学 | Device and method for purifying volatile inorganic acid reagent |
| CN102580336B (en) * | 2012-01-12 | 2014-04-16 | 天津大学 | Device and method for purifying volatile inorganic acid reagent |
| CN109069992A (en) * | 2016-05-03 | 2018-12-21 | 阿科玛法国公司 | Hydrochloric acid purification process and equipment |
| CN109069992B (en) * | 2016-05-03 | 2022-01-25 | 阿科玛法国公司 | Hydrochloric acid purification method and apparatus |
| CN110183479A (en) * | 2019-06-17 | 2019-08-30 | 鲁西化工集团股份有限公司 | A kind of system and technique of the hydrolysis of low pressure dimethyldichlorosilane |
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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: 20110112 Termination date: 20140514 |