WO2001044253A1 - Verfahren und vorrichtung zur herstellung von silanen - Google Patents
Verfahren und vorrichtung zur herstellung von silanen Download PDFInfo
- Publication number
- WO2001044253A1 WO2001044253A1 PCT/DE2000/004478 DE0004478W WO0144253A1 WO 2001044253 A1 WO2001044253 A1 WO 2001044253A1 DE 0004478 W DE0004478 W DE 0004478W WO 0144253 A1 WO0144253 A1 WO 0144253A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- fluidized bed
- reactor
- gas
- hydrochloric acid
- methyl chloride
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 34
- 150000004756 silanes Chemical class 0.000 title claims abstract description 6
- 238000004519 manufacturing process Methods 0.000 title abstract description 4
- NEHMKBQYUWJMIP-UHFFFAOYSA-N chloromethane Chemical compound ClC NEHMKBQYUWJMIP-UHFFFAOYSA-N 0.000 claims abstract description 46
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims abstract description 40
- 238000001816 cooling Methods 0.000 claims abstract description 26
- 229940050176 methyl chloride Drugs 0.000 claims abstract description 23
- 230000035939 shock Effects 0.000 claims abstract description 12
- 239000007789 gas Substances 0.000 claims description 29
- 239000012495 reaction gas Substances 0.000 claims description 21
- 238000006243 chemical reaction Methods 0.000 claims description 12
- 239000007787 solid Substances 0.000 claims description 7
- 238000002604 ultrasonography Methods 0.000 claims description 6
- 238000007664 blowing Methods 0.000 claims description 4
- 239000008247 solid mixture Substances 0.000 claims description 3
- 239000011541 reaction mixture Substances 0.000 claims 2
- 239000000110 cooling liquid Substances 0.000 claims 1
- 238000002360 preparation method Methods 0.000 claims 1
- 230000009466 transformation Effects 0.000 abstract 1
- 238000003786 synthesis reaction Methods 0.000 description 6
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 5
- 229910052710 silicon Inorganic materials 0.000 description 5
- 239000010703 silicon Substances 0.000 description 5
- 238000009423 ventilation Methods 0.000 description 5
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 4
- 229910000077 silane Inorganic materials 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000005046 Chlorosilane Substances 0.000 description 1
- 238000012369 In process control Methods 0.000 description 1
- 208000012868 Overgrowth Diseases 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- KOPOQZFJUQMUML-UHFFFAOYSA-N chlorosilane Chemical class Cl[SiH3] KOPOQZFJUQMUML-UHFFFAOYSA-N 0.000 description 1
- 238000004581 coalescence Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000010965 in-process control Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F7/00—Compounds containing elements of Groups 4 or 14 of the Periodic Table
- C07F7/02—Silicon compounds
- C07F7/08—Compounds having one or more C—Si linkages
- C07F7/12—Organo silicon halides
- C07F7/16—Preparation thereof from silicon and halogenated hydrocarbons direct synthesis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/08—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor
- B01J19/10—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing sonic or ultrasonic vibrations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/26—Nozzle-type reactors, i.e. the distribution of the initial reactants within the reactor is effected by their introduction or injection through nozzles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
- B01J8/18—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles
- B01J8/1818—Feeding of the fluidising gas
- B01J8/1827—Feeding of the fluidising gas the fluidising gas being a reactant
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
- B01J8/18—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles
- B01J8/1836—Heating and cooling the reactor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
- B01J8/18—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles
- B01J8/24—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles according to "fluidised-bed" technique
- B01J8/38—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles according to "fluidised-bed" technique with fluidised bed containing a rotatable device or being subject to rotation or to a circulatory movement, i.e. leaving a vessel and subsequently re-entering it
- B01J8/384—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles according to "fluidised-bed" technique with fluidised bed containing a rotatable device or being subject to rotation or to a circulatory movement, i.e. leaving a vessel and subsequently re-entering it being subject to a circulatory movement only
- B01J8/386—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles according to "fluidised-bed" technique with fluidised bed containing a rotatable device or being subject to rotation or to a circulatory movement, i.e. leaving a vessel and subsequently re-entering it being subject to a circulatory movement only internally, i.e. the particles rotate within the vessel
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
- B01J8/18—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles
- B01J8/24—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles according to "fluidised-bed" technique
- B01J8/40—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles according to "fluidised-bed" technique with fluidised bed subjected to vibrations or pulsations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2208/00—Processes carried out in the presence of solid particles; Reactors therefor
- B01J2208/00008—Controlling the process
- B01J2208/00017—Controlling the temperature
- B01J2208/00106—Controlling the temperature by indirect heat exchange
- B01J2208/00115—Controlling the temperature by indirect heat exchange with heat exchange elements inside the bed of solid particles
- B01J2208/00123—Fingers
Definitions
- methyl chloride or hydrochloric acid is pressed, for example, through a perforated base plate into a mostly cylindrical reaction space, where there is a finely ground grain of silicon which is reacted with the methyl chloride or hydrochloric acid.
- the silicon is whirled up and brought into suspension by the methyl chloride or hydrochloric acid.
- the methyl chloride or hydrochloric acid reacts with the silicon
- the shock waves can be simple pressure surges with a gas such as the reaction gases are methyl chloride or hydrochloric acid or pulsating ventilation of the fluidized bed.
- the pressure surges can be carried out at 2 to 1000 bar and a frequency of 10 to 2000 surges per minute.
- Shock waves can also be generated by introducing vibrations in the area of the audible sound into the fluidized bed.
- Another very effective embodiment of the process according to the invention consists in that in addition to the gas which is blown in uniformly or pulsatingly from below into the fluidized bed, reaction gas is injected pulsatingly or uniformly into the fluidized bed through lances introduced from above.
- the cooling fingers in the reactor can be used as lances, which are usually fastened in a cooled plate at the head of the reactor and hang vertically downward from there into the reaction space of the reactor.
- they are converted so that they not only remove the excess heat of reaction of the process, as is customary, but also feed reaction gas to the fluidized bed.
- tone generators for audible sound or for ultrasound.
- the cooling finger consists of 3 tubes with different diameters inserted into one another.
- the coolant flows in the 2 outer, concentric pipes (2).
- the methyl chloride or hydrochloric acid is fed to the various nozzles through the inner pipe (3).
- Various nozzles can be used in this nozzle head. 3 types of nozzles are shown in FIG. 1:
- Position (5) shows a nozzle blowing vertically downwards.
- the nozzle (6) blows horizontally into the fluidized bed.
- Nozzle (7) blows tangentially to the circumference of the cooling finger, in addition to the pulsating movement of the fluidized bed to rotate around the cold finger.
- the gas bubbles do not grow together as much as in the conventional process. If the pulsating fluidized bed is also set in rotation, the undesired coalescence of the gas bubbles is additionally made more difficult and the reaction gas can react more intensively with the solid.
- Fig. 2 shows a typical arrangement of tangentially acting nozzles in order to set a fluidized bed in rotation.
- An advantageous arrangement of the nozzles (10) is that one row of nozzles is made to work clockwise, the next row is to act anti-clockwise. In this way, the rotation of the fluidized bed around the cooling fingers can be optimally implemented.
- a variant of this embodiment of the method according to the invention consists in that the fluidized bed is set into a pulsating movement by pulsating reaction gas blown in from below and is caused to rotate by the tangentially acting nozzles.
- nozzles or other components that are particularly exposed to abrasion can be provided with a shoe (8) made of wear-resistant material.
- a protective plate (9) made of wear-resistant material such as ceramic can also be attached to the nozzle head to protect it from abrasion.
- a special embodiment of nozzles are Tiphone, which are operated with the reaction gas. They can also be installed in the tips of the cooling fingers according to the invention.
- the nozzles for the pulsed blowing in of the reaction gas need not be attached exclusively to the lower end of the cooling fingers according to the invention. They can be placed anywhere within the fluidized bed furnace.
- Fig. 3 shows such typical constructions.
- These lances can be designed, for example, as baskets (11), which consist of a
- Cooling fingers are pushed and supplied with the reaction gas from above. These lances can also be simple tubes with nozzles attached to them. (12)
- the pulsating ventilation of the fluidized bed can be carried out in another way than already described. You can e.g. Immerse tubes into the fluidized bed from above into which the mixture of gas and solid matter of the fluidized bed is alternately sucked in and blown out again.
- the cooling fingers according to the invention can be used as pipes for this purpose, the pulsating ventilation of the fluidized bed being carried out through the inner pipe (3).
- the cooling fingers are simply cooled pipes that are open at the bottom. If you alternately suck in gas from the fluidized bed and press it back in at the upper end of the cooling fingers, pulsating ventilation of the fluidized bed occurs.
- the same principle can be used if openings are distributed over the jacket of the fluidized bed furnace, through which one draws in gas-solid mixture from the fluidized bed and then blows it back in. In this way, the vertical movement in the usual fluidized bed additionally undergoes an oscillating sideways movement, which leads to the comminution of the rising gas bubbles and to better mixing of reaction gas with the Si grain.
- the various methods of causing the reaction gas to pulsate can also be combined with one another.
- reaction gas which has been vibrated can be introduced into the fluidized bed through the base plate or other gas feed lines in the lower region of the reactor and the gas / solid mixture can be alternately sucked in and blown back in through openings in the side walls of the reactor in the upper half of the fluidized bed furnace.
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP00991072A EP1153027A1 (de) | 1999-12-15 | 2000-12-14 | Verfahren und vorrichtung zur herstellung von silanen |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19960415.0 | 1999-12-15 | ||
DE1999160415 DE19960415C1 (de) | 1999-12-15 | 1999-12-15 | Verfahren und Vorrichtung zur Herstellung von Silanen |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2001044253A1 true WO2001044253A1 (de) | 2001-06-21 |
Family
ID=7932709
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2000/004478 WO2001044253A1 (de) | 1999-12-15 | 2000-12-14 | Verfahren und vorrichtung zur herstellung von silanen |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1153027A1 (de) |
DE (1) | DE19960415C1 (de) |
WO (1) | WO2001044253A1 (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007097632A1 (en) * | 2006-02-21 | 2007-08-30 | Elkem Solar As | Electrometallurgical processing method, and an apparatus for production of silane |
EP2813285A3 (de) * | 2013-06-13 | 2015-02-25 | Wacker Chemie AG | Förderung von feinteiligen Feststoffen in der Synthese von Alkylchlorsilanen |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2345228A1 (de) * | 1972-10-02 | 1974-04-18 | Nuenchritz Chemie | Verfahren und vorrichtung zur herstellung von organochlorsilanen |
JPS6480436A (en) * | 1987-09-22 | 1989-03-27 | Meitec Corp | Method and device for forming fluidized bed of superfine particle |
US5804677A (en) * | 1993-05-20 | 1998-09-08 | Bp Chemicals Limited | Polymerization process |
WO1998048932A1 (en) * | 1997-04-29 | 1998-11-05 | Her Majesty In Right Of Canada, As Represented By The Minister Of Natural Resources | Pulsed fluidised bed |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3133109A (en) * | 1960-11-28 | 1964-05-12 | Gen Electric | Silicon compound process and apparatus |
-
1999
- 1999-12-15 DE DE1999160415 patent/DE19960415C1/de not_active Expired - Fee Related
-
2000
- 2000-12-14 WO PCT/DE2000/004478 patent/WO2001044253A1/de not_active Application Discontinuation
- 2000-12-14 EP EP00991072A patent/EP1153027A1/de not_active Withdrawn
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2345228A1 (de) * | 1972-10-02 | 1974-04-18 | Nuenchritz Chemie | Verfahren und vorrichtung zur herstellung von organochlorsilanen |
JPS6480436A (en) * | 1987-09-22 | 1989-03-27 | Meitec Corp | Method and device for forming fluidized bed of superfine particle |
US5804677A (en) * | 1993-05-20 | 1998-09-08 | Bp Chemicals Limited | Polymerization process |
WO1998048932A1 (en) * | 1997-04-29 | 1998-11-05 | Her Majesty In Right Of Canada, As Represented By The Minister Of Natural Resources | Pulsed fluidised bed |
Non-Patent Citations (2)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 013, no. 286 (C - 613) 29 June 1989 (1989-06-29) * |
See also references of EP1153027A1 * |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007097632A1 (en) * | 2006-02-21 | 2007-08-30 | Elkem Solar As | Electrometallurgical processing method, and an apparatus for production of silane |
EP1993720A1 (de) * | 2006-02-21 | 2008-11-26 | Elkem Solar AS | Elektrometallurgisches verarbeitungsverfahren und vorrichtung zur herstellung von silan |
US8021522B2 (en) | 2006-02-21 | 2011-09-20 | Elkem Solar As | Reverse piezoelectric method for production of silane |
EP1993720A4 (de) * | 2006-02-21 | 2013-03-13 | Elkem Solar As | Elektrometallurgisches verarbeitungsverfahren und vorrichtung zur herstellung von silan |
EP2813285A3 (de) * | 2013-06-13 | 2015-02-25 | Wacker Chemie AG | Förderung von feinteiligen Feststoffen in der Synthese von Alkylchlorsilanen |
US9238557B2 (en) | 2013-06-13 | 2016-01-19 | Wacker Chemie Ag | Conveying of fine solids in the synthesis of alkylchlorosilanes |
Also Published As
Publication number | Publication date |
---|---|
EP1153027A1 (de) | 2001-11-14 |
DE19960415C1 (de) | 2001-08-16 |
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