EP3230206A1 - Verfahren zur gewinnung von hexachlordisilan aus in prozessabgasströmen enthaltenen gemischen von chlorsilanen - Google Patents
Verfahren zur gewinnung von hexachlordisilan aus in prozessabgasströmen enthaltenen gemischen von chlorsilanenInfo
- Publication number
- EP3230206A1 EP3230206A1 EP15825916.8A EP15825916A EP3230206A1 EP 3230206 A1 EP3230206 A1 EP 3230206A1 EP 15825916 A EP15825916 A EP 15825916A EP 3230206 A1 EP3230206 A1 EP 3230206A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- ring size
- general formula
- hexachlorodisilane
- mixture
- hydrogen
- 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.)
- Withdrawn
Links
- 239000000203 mixture Substances 0.000 title claims abstract description 69
- 239000005046 Chlorosilane Substances 0.000 title claims abstract description 50
- KOPOQZFJUQMUML-UHFFFAOYSA-N chlorosilane Chemical compound Cl[SiH3] KOPOQZFJUQMUML-UHFFFAOYSA-N 0.000 title claims abstract description 50
- 238000000034 method Methods 0.000 title claims abstract description 45
- LXEXBJXDGVGRAR-UHFFFAOYSA-N trichloro(trichlorosilyl)silane Chemical compound Cl[Si](Cl)(Cl)[Si](Cl)(Cl)Cl LXEXBJXDGVGRAR-UHFFFAOYSA-N 0.000 title claims abstract description 44
- 238000004821 distillation Methods 0.000 claims abstract description 24
- 238000006243 chemical reaction Methods 0.000 claims abstract description 19
- 239000001257 hydrogen Substances 0.000 claims abstract description 17
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 17
- FXMNVBZEWMANSQ-UHFFFAOYSA-N chloro(silyl)silane Chemical class [SiH3][SiH2]Cl FXMNVBZEWMANSQ-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000007791 liquid phase Substances 0.000 claims abstract description 7
- 239000003054 catalyst Substances 0.000 claims description 18
- 230000003197 catalytic effect Effects 0.000 claims description 16
- 239000007789 gas Substances 0.000 claims description 15
- VXEGSRKPIUDPQT-UHFFFAOYSA-N 4-[4-(4-methoxyphenyl)piperazin-1-yl]aniline Chemical compound C1=CC(OC)=CC=C1N1CCN(C=2C=CC(N)=CC=2)CC1 VXEGSRKPIUDPQT-UHFFFAOYSA-N 0.000 claims description 14
- 239000005049 silicon tetrachloride Substances 0.000 claims description 14
- 125000000217 alkyl group Chemical group 0.000 claims description 12
- 125000003342 alkenyl group Chemical group 0.000 claims description 10
- 125000003118 aryl group Chemical group 0.000 claims description 10
- 125000000753 cycloalkyl group Chemical group 0.000 claims description 10
- -1 radicals hydrogen Chemical class 0.000 claims description 10
- 238000006555 catalytic reaction Methods 0.000 claims description 7
- MYRTYDVEIRVNKP-UHFFFAOYSA-N 1,2-Divinylbenzene Chemical compound C=CC1=CC=CC=C1C=C MYRTYDVEIRVNKP-UHFFFAOYSA-N 0.000 claims description 6
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims description 6
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 claims description 5
- 238000000066 reactive distillation Methods 0.000 claims description 5
- 229910019142 PO4 Inorganic materials 0.000 claims description 4
- KYQCOXFCLRTKLS-UHFFFAOYSA-N Pyrazine Chemical compound C1=CN=CC=N1 KYQCOXFCLRTKLS-UHFFFAOYSA-N 0.000 claims description 4
- 150000001412 amines Chemical group 0.000 claims description 4
- 150000004820 halides Chemical class 0.000 claims description 4
- 235000021317 phosphate Nutrition 0.000 claims description 4
- 150000003003 phosphines Chemical group 0.000 claims description 4
- 150000003013 phosphoric acid derivatives Chemical class 0.000 claims description 4
- 239000007787 solid Substances 0.000 claims description 4
- 150000003467 sulfuric acid derivatives Chemical class 0.000 claims description 4
- 150000003512 tertiary amines Chemical class 0.000 claims description 4
- 238000009833 condensation Methods 0.000 claims description 3
- 230000005494 condensation Effects 0.000 claims description 3
- 229920001577 copolymer Polymers 0.000 claims description 3
- 238000007700 distillative separation Methods 0.000 claims description 3
- 229910017464 nitrogen compound Inorganic materials 0.000 claims description 3
- 239000011541 reaction mixture Substances 0.000 claims description 3
- JYEUMXHLPRZUAT-UHFFFAOYSA-N 1,2,3-triazine Chemical compound C1=CN=NN=C1 JYEUMXHLPRZUAT-UHFFFAOYSA-N 0.000 claims description 2
- PCNDJXKNXGMECE-UHFFFAOYSA-N Phenazine Natural products C1=CC=CC2=NC3=CC=CC=C3N=C21 PCNDJXKNXGMECE-UHFFFAOYSA-N 0.000 claims description 2
- 238000010521 absorption reaction Methods 0.000 claims description 2
- 150000003863 ammonium salts Chemical class 0.000 claims description 2
- 125000006615 aromatic heterocyclic group Chemical group 0.000 claims description 2
- 238000010924 continuous production Methods 0.000 claims description 2
- 125000004433 nitrogen atom Chemical group N* 0.000 claims description 2
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 claims description 2
- 239000002904 solvent Substances 0.000 claims description 2
- 125000004435 hydrogen atom Chemical class [H]* 0.000 claims 5
- 150000002903 organophosphorus compounds Chemical class 0.000 claims 1
- 125000002577 pseudohalo group Chemical group 0.000 claims 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 abstract description 4
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical class [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 abstract description 4
- 238000002955 isolation Methods 0.000 abstract 1
- 238000009835 boiling Methods 0.000 description 38
- 238000000926 separation method Methods 0.000 description 18
- 150000003377 silicon compounds Chemical class 0.000 description 15
- ZDHXKXAHOVTTAH-UHFFFAOYSA-N trichlorosilane Chemical compound Cl[SiH](Cl)Cl ZDHXKXAHOVTTAH-UHFFFAOYSA-N 0.000 description 13
- 239000005052 trichlorosilane Substances 0.000 description 13
- 239000000460 chlorine Substances 0.000 description 12
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 9
- 238000005481 NMR spectroscopy Methods 0.000 description 8
- VEYJKODKHGEDMC-UHFFFAOYSA-N dichloro(trichlorosilyl)silicon Chemical compound Cl[Si](Cl)[Si](Cl)(Cl)Cl VEYJKODKHGEDMC-UHFFFAOYSA-N 0.000 description 8
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical group [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 6
- VYFXMIAQVGXIIN-UHFFFAOYSA-N trichloro(chlorosilyl)silane Chemical compound Cl[SiH2][Si](Cl)(Cl)Cl VYFXMIAQVGXIIN-UHFFFAOYSA-N 0.000 description 6
- 150000002431 hydrogen Chemical class 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 229910052710 silicon Inorganic materials 0.000 description 4
- 239000010703 silicon Substances 0.000 description 4
- 239000000377 silicon dioxide Substances 0.000 description 4
- GETQZCLCWQTVFV-UHFFFAOYSA-N trimethylamine Chemical compound CN(C)C GETQZCLCWQTVFV-UHFFFAOYSA-N 0.000 description 4
- 229920001429 chelating resin Polymers 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000005229 chemical vapour deposition Methods 0.000 description 2
- 238000005660 chlorination reaction Methods 0.000 description 2
- 229910052801 chlorine Inorganic materials 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 238000004377 microelectronic Methods 0.000 description 2
- KZBUYRJDOAKODT-UHFFFAOYSA-N Chlorine Chemical compound ClCl KZBUYRJDOAKODT-UHFFFAOYSA-N 0.000 description 1
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- 229910004028 SiCU Inorganic materials 0.000 description 1
- 150000003973 alkyl amines Chemical group 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 239000012876 carrier material Substances 0.000 description 1
- 239000012320 chlorinating reagent Substances 0.000 description 1
- 238000003776 cleavage reaction Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 125000002147 dimethylamino group Chemical group [H]C([H])([H])N(*)C([H])([H])[H] 0.000 description 1
- PZPGRFITIJYNEJ-UHFFFAOYSA-N disilane Chemical compound [SiH3][SiH3] PZPGRFITIJYNEJ-UHFFFAOYSA-N 0.000 description 1
- 238000000407 epitaxy Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000002638 heterogeneous catalyst Substances 0.000 description 1
- 238000005984 hydrogenation reaction Methods 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 150000002825 nitriles Chemical class 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 150000003018 phosphorus compounds Chemical class 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000003303 reheating Methods 0.000 description 1
- 230000007017 scission Effects 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- SZYJELPVAFJOGJ-UHFFFAOYSA-N trimethylamine hydrochloride Chemical group Cl.CN(C)C SZYJELPVAFJOGJ-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B33/00—Silicon; Compounds thereof
- C01B33/08—Compounds containing halogen
- C01B33/107—Halogenated silanes
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B33/00—Silicon; Compounds thereof
- C01B33/08—Compounds containing halogen
- C01B33/107—Halogenated silanes
- C01B33/10773—Halogenated silanes obtained by disproportionation and molecular rearrangement of halogenated silanes
-
- 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
- B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
- B01J31/02—Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides
- B01J31/0234—Nitrogen-, phosphorus-, arsenic- or antimony-containing compounds
- B01J31/0235—Nitrogen containing compounds
- B01J31/0237—Amines
-
- 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
- B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
- B01J31/02—Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides
- B01J31/0234—Nitrogen-, phosphorus-, arsenic- or antimony-containing compounds
- B01J31/0235—Nitrogen containing compounds
- B01J31/0239—Quaternary ammonium compounds
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B33/00—Silicon; Compounds thereof
- C01B33/08—Compounds containing halogen
- C01B33/107—Halogenated silanes
- C01B33/10778—Purification
Definitions
- Siemens process as well as other CVD processes of microelectronics using chlorosilanes, the hydrogenation of silicon tetrachloride to produce trichlorosilane or the trichlorosilane synthesis of metallurgical silicon, for example, produce such process gases.
- the low-boiling components are used in one or more distillation steps
- Chlorosilane mixture with components having a boiling point> 57 ° C (b ei 1013.25 mbar).
- This chlorosilane mixture contains Si 2 Cl 6 (hexachlorodisilane) and further partially hydrogenated chlorodisilanes having the general formula
- Hexachlorodisilane is an important starting material in microelectronics.
- the compound is, inter alia, precursor in CVD deposition for high-purity silicon nitride, silicon oxide or silicon carbide layers.
- Hexachlorodisilane plays an important role in transistor fabrication in memory chips. Low-temperature epitaxy becomes epitaxial silicon layers
- Another method describes the reaction with chlorine gas, which leads, according to EP 2036859 B1, to cleavage of the silicon-silicon bond and thus the high-quality disilanes having the general formula Si x HyCl 2 x + 2 y, where x is 2 and y equal to 1-5 is to be destroyed.
- the aim of this reaction is to convert the disilane to silicon tetrachloride and return it back to the material cycle in order to increase the material yield.
- Pentachlorodisilane mixtures of organotitrogen or phosphorus compounds described The objective of the applicants is complete decomposition of the listed disilanes to trichlorosilane, silicon tetrachloride and solid polychlorosilane.
- the present invention is therefore based on the object to provide a method which is a separation of Hexachlordisilans with high yields from the described chlorosilane mixtures, which in the thermal reaction of hydrogen with monosilanes of the general formula Si x HyCl 2 x + 2-y, where x equals 1 and y equals 0 - 2, is available.
- the object is achieved by a method for obtaining
- the reaction is carried out in a batch or in a continuous process.
- a further advantageous embodiment of the method is that the catalyst to inorganic, such as Al 2 0 3 , Si0 2 or organic, such as co-polymer of styrene and divinylbenzene, solids immobilized, dispersed or in a mixture of
- Chlorosilanes dissolved is used.
- Quaternary amines / ammonium salts of general formula II :
- the organic radicals may be linear or branched
- the chlorosilane mixture is mixed with silicon tetrachloride, which advantageously leads to an increase in yield.
- a further embodiment is characterized in that after the catalytic conversion of the chlorosilane mixture, the distillative separation of the
- Reaction mixture takes place or the catalytic reaction takes place during a reactive distillation.
- the advantages here are in particular the lower equipment costs and the better energy balance. Increase the temperature, then catalytically
- alkylated or arylated tertiary amines such as trimethylamine
- alkylated or arylated tertiary amines which have groupings such as dimethylamino groups, heterocyclic nitrogen compounds (azines), pyridine groups or nitriles or quaternary amines, with trimethylammonium chloride groups on one
- organic carrier material such as e.g. a copolymer of styrene and divinylbenzene or on an inorganic support material, e.g. Silica, are immobilized.
- the heterogeneous catalyst is used in the form of pellets containing a
- the catalyst still has sufficient stability at at least 100 ° C., is insoluble and substantially does not tend to split off the amine.
- the catalytically active functional groups are easily accessible.
- tertiary alkylamines such as:
- Trimethylamine which are soluble in the system one and have a significantly lower boiling point than that of hexachlorodisilane, so that a good separation is guaranteed.
- chlorosilane mixtures having proportions of chlorosilanes of the general formula Si x HyCl 2X + 2 .y, where x is 2 and y is 0-5, of
- the catalytic conversion of the chlorosilane mixture leads mainly to the formation of hexachlorodisilane and higher boiling silicon compounds, which a particularly clean separation of Hexachlordisilan allows.
- hexachlorodisilane can be separated from the exhaust gases of the processes described with low equipment costs and low costs, without additional safety risks, in high purity. This is achieved by means of the selective catalytic reaction of partially hydrogenated chlorodisilane moieties in the chlorosilane mixture, having the general formula Si x HyCl 2 x + 2 -y- where x is 2 and y is 0-5.
- Hexachlorodisilane from mixtures of chlorosilanes in a process exhaust gas 1 process exhaust gases, after conversion into the liquid phase by
- a fraction 7.2 contains the target product hexachlorodisilane Si 2 Cl 6 and the distillation bottom 7.3 contains a mixture of higher-boiling silicon compounds having> 2 silicon atoms in the
- the chlorosilane mixture from the separation region 4 is catalytically reacted during the distillation by means of a reactive distillation 6.
- fraction 6.1 which contains mainly trichlorosilane
- the catalyst must be separated from the liquid phase prior to further distillation in order then to obtain silicon tetrachloride as a separate fraction 6.2 and hexachlorodisilane as fraction 6.3.
- a distillation bottoms 6.4 remains from higher-boiling silicon compounds having> 2 silicon atoms in the molecule.
- Embodiment 1 (Comparative Example)
- Exemplary embodiment 2 (according to FIG. 1, implementation 5)
- Embodiment 3 (according to FIG. 1, implementation 5)
- HCDS hexachlorodisilane
- HSS higher boiling silicon compounds
- Exemplary embodiment 5 (according to FIG. 1, implementation 5)
- HCDS hexachlorodisilane
- HSS higher boiling silicon compounds
- Exemplary embodiment 6 (according to FIG. 1, implementation 5)
- Hexachlorodisilane further higher-boiling silicon compounds.
- Exemplary embodiment 7 (according to FIG. 1, implementation 5)
- Diphenylphosphine-functionalized silica (catalyst) at 20 ° C After one week at room temperature, the composition was redetermined (Table 7). The catalyst was filtered off and the mixture was separated by distillation. Three fractions were taken. The third fraction or the bottom contained, in addition to hexachlorodisilane, further higher-boiling silicon compounds. Table 7.
- TCS trichlorosilane
- STC silicon tetrachloride
- TCDS tetrachlorodisilane
- PCDS pentachlorodisilane
- HCDS hexachlorodisilane
- HSS higher-boiling silicon compounds
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Silicon Compounds (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102014018435.8A DE102014018435A1 (de) | 2014-12-10 | 2014-12-10 | Verfahren zur Gewinnung von Hexachlordisilan aus in Prozessabgasströmen enthaltenen Gemischen von Chlorsilanen |
| PCT/DE2015/000562 WO2016091240A1 (de) | 2014-12-10 | 2015-11-20 | Verfahren zur gewinnung von hexachlordisilan aus in prozessabgasströmen enthaltenen gemischen von chlorsilanen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3230206A1 true EP3230206A1 (de) | 2017-10-18 |
Family
ID=55174478
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP15825916.8A Withdrawn EP3230206A1 (de) | 2014-12-10 | 2015-11-20 | Verfahren zur gewinnung von hexachlordisilan aus in prozessabgasströmen enthaltenen gemischen von chlorsilanen |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP3230206A1 (de) |
| KR (1) | KR20170091623A (de) |
| CN (1) | CN107207267A (de) |
| DE (1) | DE102014018435A1 (de) |
| WO (1) | WO2016091240A1 (de) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI791547B (zh) | 2017-07-31 | 2023-02-11 | 中國大陸商南大光電半導體材料有限公司 | 製備五氯二矽烷之方法及包含五氯二矽烷之經純化的反應產物 |
| JP7304443B2 (ja) * | 2020-02-20 | 2023-07-06 | ワッカー ケミー アクチエンゲゼルシャフト | 少なくとも1つの部分水素化クロロジシランを、固体の非官能性吸着体と反応させて、ヘキサクロロジシランを入手する方法 |
| CN112479212B (zh) * | 2020-12-16 | 2022-06-28 | 亚洲硅业(青海)股份有限公司 | 一种六氯乙硅烷提纯装置及方法 |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1142848B (de) | 1958-06-25 | 1963-01-31 | Wacker Chemie Gmbh | Verfahren zur Herstellung von hochreinem Siliciumhexachlorid |
| DE3503262A1 (de) | 1985-01-31 | 1986-08-07 | Wacker-Chemitronic Gesellschaft für Elektronik-Grundstoffe mbH, 8263 Burghausen | Verfahren zum aufarbeiten von bei der siliciumherstellung anfallenden halogensilangemischen |
| JP4465961B2 (ja) | 2000-08-02 | 2010-05-26 | 三菱マテリアル株式会社 | 六塩化二珪素の製造方法 |
| JP2006176357A (ja) * | 2004-12-22 | 2006-07-06 | Sumitomo Titanium Corp | ヘキサクロロジシランの製造方法 |
| EP2000195B1 (de) | 2006-03-07 | 2013-10-23 | Kanken Techno Co. Ltd. | Verfahren zum unschädlichmachen von hcd-gas und vorrichtung dafür |
| EP2076558B8 (de) * | 2006-10-24 | 2018-08-01 | Dow Silicones Corporation | Neopentasilan enthaltende zusammensetzung und herstellungsverfahren dafür |
| JP4659797B2 (ja) | 2007-09-05 | 2011-03-30 | 信越化学工業株式会社 | 多結晶シリコンの製造方法 |
| DE102007000841A1 (de) * | 2007-10-09 | 2009-04-16 | Wacker Chemie Ag | Verfahren zur Herstellung von hochreinem Hexachlordisilan |
| KR101538168B1 (ko) * | 2007-11-30 | 2015-07-20 | 미쓰비시 마테리알 가부시키가이샤 | 전환 반응 가스의 분리 회수 방법 |
| DE102009053804B3 (de) * | 2009-11-18 | 2011-03-17 | Evonik Degussa Gmbh | Verfahren zur Herstellung von Hydridosilanen |
| DE102010002812A1 (de) | 2010-03-12 | 2011-09-15 | Wacker Chemie Ag | Verfahren zur Entsorgung Hexachlordisilan-haltiger Dämpfe |
| DE102010043648A1 (de) * | 2010-11-09 | 2012-05-10 | Evonik Degussa Gmbh | Verfahren zur selektiven Spaltung höherer Silane |
| DE102010043649A1 (de) * | 2010-11-09 | 2012-05-10 | Evonik Degussa Gmbh | Verfahren zur Spaltung höherer Silane |
-
2014
- 2014-12-10 DE DE102014018435.8A patent/DE102014018435A1/de not_active Withdrawn
-
2015
- 2015-11-20 CN CN201580075776.2A patent/CN107207267A/zh active Pending
- 2015-11-20 KR KR1020177015427A patent/KR20170091623A/ko not_active Withdrawn
- 2015-11-20 EP EP15825916.8A patent/EP3230206A1/de not_active Withdrawn
- 2015-11-20 WO PCT/DE2015/000562 patent/WO2016091240A1/de not_active Ceased
Non-Patent Citations (2)
| Title |
|---|
| None * |
| See also references of WO2016091240A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102014018435A1 (de) | 2016-06-16 |
| KR20170091623A (ko) | 2017-08-09 |
| CN107207267A (zh) | 2017-09-26 |
| WO2016091240A1 (de) | 2016-06-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2121522B1 (de) | Verfahren zur herstellung höherer germaniumverbindungen | |
| EP2294006B1 (de) | Verfahren zur entfernung von bor enthaltenden verunreinigungen aus halogensilanen sowie anlage zur durchführung des verfahrens | |
| EP2078695B1 (de) | Verfahren zur Abscheidung von polykristallinem Silicium | |
| EP2655254B1 (de) | Verfahren zur herstellung von hydridosilanen | |
| DE102015210762A1 (de) | Verfahren zur Aufarbeitung von mit Kohlenstoffverbindungen verunreinigten Chlorsilanen oder Chlorsilangemischen | |
| EP3116637B1 (de) | Verfahren zur herstellung von reinem trisilylamin | |
| EP2252549A2 (de) | Anlage und verfahren zur verminderung des gehaltes von elementen, wie bor, in halogensilanen | |
| EP2989051B1 (de) | Verfahren und vorrichtung zur herstellung von octachlortrisilan | |
| EP2451549B1 (de) | Verfahren und anlage zur herstellung von monosilan | |
| EP2637969A1 (de) | Verfahren zur herstellung von trichlorsilan | |
| EP3230206A1 (de) | Verfahren zur gewinnung von hexachlordisilan aus in prozessabgasströmen enthaltenen gemischen von chlorsilanen | |
| WO2014173573A1 (de) | Verfahren und vorrichtung zur herstellung von polychlorsilanen | |
| US10207932B2 (en) | Trichlorosilane purification system and method for producing polycrystalline silicon | |
| EP3194410A1 (de) | Verfahren zur aufreinigung halogenierter oligosilane | |
| EP0806427B1 (de) | Verfahren zur Herstellung von vinylierten Silicium-organischen Verbindungen | |
| DE102011078749A1 (de) | Verfahren zur Herstellung von Trisilylamin aus Monochlorsilan und Ammoniak | |
| EP0823434A1 (de) | Verfahren zur kontinuierlichen Herstellung von 3-Halogen-Propyl-Organosilanen | |
| EP2493900A1 (de) | Verfahren zur herstellung von organosilanen | |
| DE112008002299T5 (de) | Verfahren zur Herstellung von Trichlorsilan | |
| US20130121908A1 (en) | Method for producing trichlorosilane with reduced boron compound impurities | |
| US20180141819A1 (en) | Primary distillation boron reduction | |
| US20120082609A1 (en) | Method for producing trichlorosilane with reduced boron compound impurities | |
| DE102019202613A1 (de) | Verfahren zur Herstellung von Monochlorsilan oder Dichlorsilan | |
| WO2020114609A1 (de) | Verfahren zur verminderung des gehalts an borverbindungen in halogensilan enthaltenden zusammensetzung | |
| DE102012210308A1 (de) | Verfahren zur Herstellung von (3-Chlorpropyl)-Trichlorsilan |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| 17P | Request for examination filed |
Effective date: 20170620 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
| AX | Request for extension of the european patent |
Extension state: BA ME |
|
| RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: SCHLEY, MICHAEL Inventor name: KATZ, MARTIN Inventor name: SCHAAFF, FRIEDRICH |
|
| DAV | Request for validation of the european patent (deleted) | ||
| DAX | Request for extension of the european patent (deleted) | ||
| 17Q | First examination report despatched |
Effective date: 20181108 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
| 18D | Application deemed to be withdrawn |
Effective date: 20190319 |