CN109821482A - The automatic continuous adding method of catalyst and device - Google Patents
The automatic continuous adding method of catalyst and device Download PDFInfo
- Publication number
- CN109821482A CN109821482A CN201910242528.2A CN201910242528A CN109821482A CN 109821482 A CN109821482 A CN 109821482A CN 201910242528 A CN201910242528 A CN 201910242528A CN 109821482 A CN109821482 A CN 109821482A
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- China
- Prior art keywords
- catalyst
- automatic continuous
- continuous adding
- valve
- fluidized bed
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- 239000003054 catalyst Substances 0.000 title claims abstract description 94
- 238000000034 method Methods 0.000 title claims abstract description 26
- YGZSVWMBUCGDCV-UHFFFAOYSA-N chloro(methyl)silane Chemical compound C[SiH2]Cl YGZSVWMBUCGDCV-UHFFFAOYSA-N 0.000 claims abstract description 26
- 238000006243 chemical reaction Methods 0.000 claims abstract description 21
- 238000005303 weighing Methods 0.000 claims abstract description 20
- NEHMKBQYUWJMIP-UHFFFAOYSA-N chloromethane Chemical compound ClC NEHMKBQYUWJMIP-UHFFFAOYSA-N 0.000 claims description 29
- 230000007246 mechanism Effects 0.000 claims description 21
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 16
- 239000007789 gas Substances 0.000 claims description 15
- 229940050176 methyl chloride Drugs 0.000 claims description 14
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 11
- 239000011863 silicon-based powder Substances 0.000 claims description 11
- 238000001125 extrusion Methods 0.000 claims description 9
- 229910052757 nitrogen Inorganic materials 0.000 claims description 8
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 6
- 239000003795 chemical substances by application Substances 0.000 claims description 6
- 230000000694 effects Effects 0.000 claims description 4
- 150000001335 aliphatic alkanes Chemical class 0.000 claims description 2
- VABRONYHMNKEFB-UHFFFAOYSA-N chloromethane;silicon Chemical compound [Si].ClC VABRONYHMNKEFB-UHFFFAOYSA-N 0.000 claims description 2
- 238000007599 discharging Methods 0.000 claims 1
- 239000013589 supplement Substances 0.000 abstract 1
- 230000008901 benefit Effects 0.000 description 2
- 238000006555 catalytic reaction Methods 0.000 description 2
- 150000001367 organochlorosilanes Chemical class 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000003431 cross linking reagent Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- LIKFHECYJZWXFJ-UHFFFAOYSA-N dimethyldichlorosilane Chemical compound C[Si](C)(Cl)Cl LIKFHECYJZWXFJ-UHFFFAOYSA-N 0.000 description 1
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical class [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 229920001558 organosilicon polymer Polymers 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Catalysts (AREA)
Abstract
This application provides a kind of automatic continuous adding method of catalyst and device, method includes: to weigh to catalyst；The catalyst after weighing is continuously inputted in fluidized bed, methylchlorosilane reaction is carried out in the fluidized bed.The application constantly supplements catalyst into fluidized bed, the catalyst of 20~50kg/h is continuously passed through into fluidized bed, reduce the fluctuation range of catalyst content, improve the stability of methylchlorosilane reaction by weighing in advance to catalyst.
Description
Technical field
The present invention relates to organochlorosilane technical fields, more particularly to a kind of automatic continuous adding method of catalyst and dress
It sets.
Background technique
Organochlorosilane is the pillar of entire organosilicon chemistry, and most organosilicon product is hydrolyzed by methylchlorosilane
Polymethyl siloxane obtained, then be processed into regulator, crosslinking agent, closure agent etc..Its application spreads space flight, aviation, change
Work, metallurgy or even people's daily life, health care every field.And methylchlorosilane is by chloromethanes and silicon powder reaction life
At development process has been related to the development of entire organosilicon industry, so the combined coefficient for promoting methylchlorosilane is extremely heavy
It wants.
Methylchlorosilane is to prepare the most important monomer of organosilicon polymer.Wherein, with the dosage of dimethyldichlorosilane
Maximum accounts for about the 90% of methylchlorosilane.In a fluidized bed reactor, silicon powder and copper catalyst are mixed to form active contact.
In the polymerization production process of batch operation, with the carry out catalyst activity reduction of reaction, and then need every one
The section time just as filling into catalyst in reaction vessel, causes catalyst content fluctuation range big, methylchlorosilane reaction is unstable.
Summary of the invention
The present invention provides a kind of automatic continuous adding method of catalyst and devices, to solve catalysis caused by batch operation
Agent content fluctuation range is big, and methylchlorosilane reacts unstable problem.
To achieve the above object, in a first aspect, the present invention provides a kind of automatic continuous adding methods of catalyst, comprising:
It weighs to catalyst；
The catalyst after weighing is continuously inputted in fluidized bed, it is anti-that methylchlorosilane is carried out in the fluidized bed
It answers.
Optionally, the automatic continuous adding method of above-mentioned catalyst, further includes:
Be passed through silicon powder and methyl chloride gas into the fluidized bed, the silicon powder, methyl chloride gas catalyst effect
Lower reaction generates methylchlorosilane.
Optionally, the automatic continuous adding method of above-mentioned catalyst, the catalyst are copper powder.
Optionally, the automatic continuous adding method of above-mentioned catalyst, it is described to urge in the methylchlorosilane reaction process
The content of agent is controlled 1.3 ± 0.8%.
Optionally, the automatic continuous adding method of above-mentioned catalyst, it is described to urge in the methylchlorosilane reaction process
The content of agent is controlled 1.6~1.7%.
Second aspect, this application provides the device of the automatic continuous adding method of catalyst described in any of the above embodiments, packets
It includes: tank body, Screw Extrusion mechanism, feeding pipe and fluidized bed, and be sequentially connected and connect；The discharge outlet of the tank base is set
Set Weighing mechanism；The tank body is for containing, conveying catalyst；
The Weighing mechanism is for weighing to catalyst；
The Screw Extrusion mechanism is for squeezing into catalyst in feeding pipe；
Described feeding pipe one end is connect with methyl chloride gas input pipe, and the feeding pipe other end and fluidized bed connect
It connects；
The fluidized bed is for carrying out methylchlorosilane reaction.
Optionally, catalyst charge pipe and nitrogen is arranged in the automatic continuous adding set of above-mentioned catalyst on the tank body
The first valve is arranged in gas input pipe on catalyst charge pipe, and the second valve is arranged on nitrogen input pipe；Or/and
It further include the vacuum device being connect with the tank body.
Optionally, the automatic continuous adding set of above-mentioned catalyst, comprising: the tank body and the Screw Extrusion mechanism are logical
Connecting tube connection is crossed, third valve is set in the connecting tube；4th valve is set on the methyl chloride gas input pipe.
Optionally, the automatic continuous adding set of above-mentioned catalyst, the Weighing mechanism are weight sensor.
Optionally, the automatic continuous adding set of above-mentioned catalyst, further includes: with first valve, second valve
The controller that door, the third valve, the 4th valve connect.
Compared with prior art, present invention has an advantage that
This application provides a kind of automatic continuous adding methods of catalyst, by weighing in advance to catalyst, constantly
Catalyst is supplemented into fluidized bed, the catalyst of 20~50kg/h is continuously passed through into fluidized bed, reduces the wave of catalyst content
Dynamic range, improves the stability of methylchlorosilane reaction.
Detailed description of the invention
The drawings described herein are used to provide a further understanding of the present invention, constitutes a part of the invention, this hair
Bright illustrative embodiments and their description are used to explain the present invention, and are not constituted improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is the flow chart of the automatic continuous adding method of catalyst；
Fig. 2 is the structural schematic diagram of the automatic continuous adding set of catalyst；
The components in the drawings are labeled as follows:
Tank body 1, catalyst charge pipe 11, nitrogen input pipe 12, the first valve 13, the second valve 14, vacuum device 15,
Screw Extrusion mechanism 2, feeding pipe 3, fluidized bed 4, Weighing mechanism 5, methyl chloride gas input pipe 6, connecting tube 7, third valve
8, the 4th valve 9, silicon powder input pipe 10.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with the specific embodiment of the invention and
Technical solution of the present invention is clearly and completely described in corresponding attached drawing.Obviously, described embodiment is only the present invention one
Section Example, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not doing
Every other embodiment obtained under the premise of creative work out, shall fall within the protection scope of the present invention.
Multiple embodiments of the invention will be disclosed with schema below, as clearly stated, the details in many practices
It will be explained in the following description.It should be appreciated, however, that the details in these practices is not applied to limit the present invention.Also
It is to say, in some embodiments of the invention, the details in these practices is non-essential.In addition, for the sake of simplifying schema,
Some known usual structures and component will be painted it in the drawings in simply illustrative mode.
As shown in Figure 1, this application provides a kind of automatic continuous adding methods of catalyst, comprising:
S01 weighs to catalyst；
S02 continuously inputs the catalyst after weighing in fluidized bed 4, and methyl chloride silicon is carried out in the fluidized bed 4
Alkane reaction.
This application provides a kind of automatic continuous adding methods of catalyst, by weighing in advance to catalyst, constantly
Catalyst is supplemented into fluidized bed, the catalyst of 20~50kg/h is continuously passed through into fluidized bed, reduces the wave of catalyst content
Dynamic range, improves the stability of methylchlorosilane reaction.
In one embodiment of the application, the automatic continuous adding method of above-mentioned catalyst, further includes:
Be passed through silicon powder and methyl chloride gas into the fluidized bed, the silicon powder, methyl chloride gas catalyst effect
Lower reaction generates methylchlorosilane.
In one embodiment of the application, catalyst is mainly copper powder.
In one embodiment of the application, in methylchlorosilane reaction process, the control of the content of catalyst 1.3 ±
0.8%.Preferably, the content of catalyst is controlled 1.6~1.7%.
As shown in Fig. 2, in one embodiment of the application, provide a kind of for the automatic continuous adding method of catalyst
Device, comprising: tank body 1, Screw Extrusion mechanism 2, feeding pipe 3 and fluidized bed 4, and be sequentially connected and connect；1 bottom of tank body goes out
Weighing mechanism 5 is set at material mouth 11；Tank body 1 is for containing, conveying catalyst；Weighing mechanism 5 is for weighing to catalyst；
Screw Extrusion mechanism 2 is for squeezing into catalyst in feeding pipe 3；3 one end of feeding pipe and methyl chloride gas input pipe 6 connect
It connects, 3 other end of feeding pipe is connect with fluidized bed 4；Fluidized bed 4 is for carrying out methylchlorosilane reaction.Pass through screw extruder
Structure 2 slowly, constantly catalyst is continuously conveyed into fluidized bed 4, improve the stability of reaction.
It is provided with silicon powder input pipe 10 on tank body 1, valve is set on silicon powder input pipe 10.
In one embodiment of the application, catalyst charge pipe 11 and nitrogen input pipe 12 are set on the tank body 1,
First valve 13 is set on catalyst charge pipe 11, the second valve 14 is set on nitrogen input pipe 12.It is first by nitrogen
Tank body 1 pressurizes, and flows into catalyst in the second tank body 2.
In one embodiment of the application, the automatic continuous adding set of catalyst further includes the pumping connecting with the tank body 1
Vacuum mechanism 15.It is catalysis so set, being to avoid the oxidation of catalyst to guarantee that the first tank body is in vacuum state
Agent saves well, avoids wasting.
In one embodiment of the application, the automatic continuous adding set of catalyst includes: that the tank body 1 is squeezed with the screw rod
Mechanism 2 is connected by connecting tube 7 out, and third valve 8 is arranged in the connecting tube 7；It is arranged on the methyl chloride gas input pipe 6
4th valve 9.Third valve 8 is used to control the amount that catalyst flows into connecting tube 7；4th valve 9 is for controlling methyl chloride gas
Flow into the amount of fluidized bed.
In one embodiment of the application, the Weighing mechanism 5 is weight sensor.
In one embodiment of the application, the automatic continuous adding set of catalyst further include: with first valve 13, institute
State the controller that the second valve 14, the third valve 8, the 4th valve 9 connect.Adjustable first valve of controller
13, the folding size of the second valve 14, third valve 8 and the 4th valve 9, so adjust intake number.
The application is specifically described below with reference to specific experiment data:
Intermittent mode: catalyst mainly uses copper powder, concentration range of the catalyst in fluidized bed 4 1.5%~2% it
Between, the yield hourly for obtaining methylchlorosilane is 150~210g/kg.
Continuation mode: catalyst mainly uses copper powder, and concentration range of the catalyst in fluidized bed 4 is 1.6%~1.7%
Between, the yield hourly for obtaining methylchlorosilane is 190~200g/kg.
Therefore by the way that continuation mode to be compared with intermittent mode, show that the catalyst of the application uses automatically continuously
Addition manner reduces the fluctuation range of catalyst content, improves the stability of methylchlorosilane reaction.
Above-described specific example of the invention, to the purpose of the present invention, technical scheme and beneficial effects carried out into
One step is described in detail, it should be understood that the above is only a specific embodiment of the present invention, is not limited to this hair
Bright, all within the spirits and principles of the present invention, any modification, equivalent substitution, improvement and etc. done should be included in the present invention
Protection scope within.
Claims (10)
1. a kind of automatic continuous adding method of catalyst characterized by comprising
It weighs to catalyst；
The catalyst after weighing is continuously inputted in fluidized bed, methylchlorosilane reaction is carried out in the fluidized bed.
2. the automatic continuous adding method of catalyst according to claim 1, which is characterized in that further include:
Silicon powder and methyl chloride gas are passed through into the fluidized bed, the silicon powder, methyl chloride gas are anti-under the effect of the catalyst
Methylchlorosilane should be generated.
3. the automatic continuous adding method of catalyst according to claim 1 or 2, which is characterized in that the catalyst is copper
Powder.
4. the automatic continuous adding method of catalyst according to claim 1 or 2, which is characterized in that in the methyl chloride silicon
In alkane reaction process, the content of the catalyst is controlled 1.3 ± 0.8%.
5. the automatic continuous adding method of catalyst according to claim 4, which is characterized in that anti-in the methylchlorosilane
During answering, the content of the catalyst is controlled 1.6~1.7%.
6. a kind of device for the automatic continuous adding method of the described in any item catalyst of Claims 1 to 5, feature exist
In, comprising: tank body, Screw Extrusion mechanism, feeding pipe and fluidized bed, and be sequentially connected and connect；The discharging of the tank base
Weighing mechanism is set at mouthful；The tank body is for containing, conveying catalyst；
The Weighing mechanism is for weighing to catalyst；
The Screw Extrusion mechanism is for squeezing into catalyst in feeding pipe；
Described feeding pipe one end is connect with methyl chloride gas input pipe, and the feeding pipe other end is connect with fluidized bed；
The fluidized bed is for carrying out methylchlorosilane reaction.
7. the automatic continuous adding set of catalyst according to claim 6, which is characterized in that be arranged on the tank body and urge
The first valve is arranged on the catalyst charge pipe in agent feed pipe and nitrogen input pipe, and is arranged on nitrogen input pipe
Two valves；Or/and
It further include the vacuum device being connect with the tank body.
8. the automatic continuous adding set of catalyst according to claim 6 characterized by comprising the tank body and institute
It states Screw Extrusion mechanism to connect by connecting tube, third valve is set in the connecting tube；On the methyl chloride gas input pipe
4th valve is set.
9. the automatic continuous adding set of catalyst according to claim 6, which is characterized in that the Weighing mechanism is weight
Sensor.
10. the automatic continuous adding set of catalyst according to claim 8, which is characterized in that further include: with described first
The controller that valve, second valve, the third valve, the 4th valve connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910242528.2A CN109821482A (en) | 2019-03-28 | 2019-03-28 | The automatic continuous adding method of catalyst and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910242528.2A CN109821482A (en) | 2019-03-28 | 2019-03-28 | The automatic continuous adding method of catalyst and device |
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| Publication Number | Publication Date |
|---|---|
| CN109821482A true CN109821482A (en) | 2019-05-31 |
Family
ID=66873003
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910242528.2A Pending CN109821482A (en) | 2019-03-28 | 2019-03-28 | The automatic continuous adding method of catalyst and device |
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| Country | Link |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| USRE33452E (en) * | 1983-07-28 | 1990-11-20 | General Electric Company | Method for making alkylhalosilanes |
| CN1343670A (en) * | 2001-10-19 | 2002-04-10 | 清华大学 | Process and system for synthesizing organosilicon monomer by direct method |
| CN1814603A (en) * | 2005-02-03 | 2006-08-09 | 瓦克化学股份公司 | Method for manufacturing methylchlorosilances |
| CN101456877A (en) * | 2008-12-08 | 2009-06-17 | 江苏宏达新材料股份有限公司 | Contact masses processing method during methylchlorosilane synthesis |
| CN103949191A (en) * | 2014-05-13 | 2014-07-30 | 湖北三宁化工股份有限公司 | Device and method for continuously adding catalysts in cyclohexanone oximation reaction |
| CN204247169U (en) * | 2014-11-24 | 2015-04-08 | 宁波金海晨光化学股份有限公司 | A kind of catalyst charging system with pressure |
| CN210115059U (en) * | 2019-03-28 | 2020-02-28 | 合盛硅业股份有限公司 | Automatic continuous adding device for catalyst |
-
2019
- 2019-03-28 CN CN201910242528.2A patent/CN109821482A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| USRE33452E (en) * | 1983-07-28 | 1990-11-20 | General Electric Company | Method for making alkylhalosilanes |
| USRE33452F1 (en) * | 1983-07-28 | 1993-04-27 | ||
| CN1343670A (en) * | 2001-10-19 | 2002-04-10 | 清华大学 | Process and system for synthesizing organosilicon monomer by direct method |
| CN1814603A (en) * | 2005-02-03 | 2006-08-09 | 瓦克化学股份公司 | Method for manufacturing methylchlorosilances |
| CN101456877A (en) * | 2008-12-08 | 2009-06-17 | 江苏宏达新材料股份有限公司 | Contact masses processing method during methylchlorosilane synthesis |
| CN103949191A (en) * | 2014-05-13 | 2014-07-30 | 湖北三宁化工股份有限公司 | Device and method for continuously adding catalysts in cyclohexanone oximation reaction |
| CN204247169U (en) * | 2014-11-24 | 2015-04-08 | 宁波金海晨光化学股份有限公司 | A kind of catalyst charging system with pressure |
| CN210115059U (en) * | 2019-03-28 | 2020-02-28 | 合盛硅业股份有限公司 | Automatic continuous adding device for catalyst |
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Application publication date: 20190531 |
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