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JPS6270425A - Manufacturing method of chloropolysilane - Google Patents

Manufacturing method of chloropolysilane

Info

Publication number
JPS6270425A
JPS6270425A JP21026485A JP21026485A JPS6270425A JP S6270425 A JPS6270425 A JP S6270425A JP 21026485 A JP21026485 A JP 21026485A JP 21026485 A JP21026485 A JP 21026485A JP S6270425 A JPS6270425 A JP S6270425A
Authority
JP
Japan
Prior art keywords
chloropolysilane
catalyst
results
activated alumina
manufacturing
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.)
Granted
Application number
JP21026485A
Other languages
Japanese (ja)
Other versions
JPH0417892B2 (en
Inventor
Hiroshi Ikeda
洋 池田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Metal Corp
Original Assignee
Mitsubishi Metal Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mitsubishi Metal Corp filed Critical Mitsubishi Metal Corp
Priority to JP21026485A priority Critical patent/JPS6270425A/en
Publication of JPS6270425A publication Critical patent/JPS6270425A/en
Publication of JPH0417892B2 publication Critical patent/JPH0417892B2/ja
Granted legal-status Critical Current

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  • Catalysts (AREA)
  • Silicon Polymers (AREA)
  • Silicon Compounds (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。
(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【発明の詳細な説明】 く技術分野〉 本願発明はクロロポリシランの新規な製造方法に関する
DETAILED DESCRIPTION OF THE INVENTION Technical Field The present invention relates to a novel method for producing chloropolysilane.

ヘキサクロロジシラン(Si2 G+6 ) 、 オク
タクロロトリシラン(Si3 CIB )等のクロロポ
リシラは、集積回路のエピタキシャルシリコン層、太陽
電池のアモルファスシリコン層、ゼログラフ複写機のア
モルファスシリコン感光層、あるいは各種珪化物セラミ
ックス、等の製造原料として注目されているジシラン(
Si2.)16)やトリシラン(St3He)ようなポ
リシランを製造するための中間体として、またオルガノ
シラン、珪酸エステルの原料して重要である。
Chloropolysilanes such as hexachlorodisilane (Si2 G+6) and octachlorotrisilane (Si3 CIB) are used in epitaxial silicon layers of integrated circuits, amorphous silicon layers of solar cells, amorphous silicon photosensitive layers of xerographic copying machines, various silicide ceramics, etc. Disilane (
Si2. )16) and trisilane (St3He), and as a raw material for organosilanes and silicate esters.

〈従来技術とその問題点〉 従来クロロポリシランの製法は珪化カルシウムと塩素の
反応によるものであるが、収率は高々20%と非常に低
く、また副生物として多量の塩化カルシウムが生じ、こ
れが珪化カルシウムの表面を覆い、反応の進行を妨害す
るので、これを頗繁に除去しなければならないことが難
点である。
<Prior art and its problems> The conventional method for producing chloropolysilane is based on the reaction of calcium silicide and chlorine, but the yield is very low at 20% at most, and a large amount of calcium chloride is produced as a by-product, which is caused by silicification. The problem is that it covers the surface of calcium and obstructs the progress of the reaction, so it must be removed frequently.

それゆえに、収率のよい、副生物の生成のないクロロポ
リシランの製法の開発が望まれている。
Therefore, it is desired to develop a method for producing chloropolysilane with good yield and without the formation of by-products.

〈発明の構成〉 本発明によれば、リチウムとマグネシウムの複合酸化物
を触媒として、200℃〜700°Cの温度でクロロモ
ノシラン、 即ち、S iC14,5iHC13,5j
H7C12,5iH3CIまたはこれらの程合物を重合
させることを特徴とするクロロポリシランの製造方法が
提供される。
<Configuration of the Invention> According to the present invention, chloromonosilane, i.e., SiC14,5iHC13,5j, is produced at a temperature of 200°C to 700°C using a composite oxide of lithium and magnesium as a catalyst.
A method for producing chloropolysilane is provided, which comprises polymerizing H7C12,5iH3CI or a compound thereof.

本発明方法において、触媒物質は通常触媒効果を高める
ために、担体に担持させる。担体は特に限定されないが
、活性アルミナ、シリカゲル、モレキュラーシーブ等が
好適である。
In the method of the present invention, the catalytic material is usually supported on a carrier in order to enhance the catalytic effect. The carrier is not particularly limited, but activated alumina, silica gel, molecular sieve, etc. are suitable.

反応温度は200℃未満では重合が起らず、また700
℃を越えると、生成したクロロポリシランが分解し始め
る。
Polymerization does not occur at a reaction temperature of less than 200°C;
When the temperature exceeds ℃, the chloropolysilane produced begins to decompose.

生成混合物は蒸留によって目的のクロロポリシランを分
別採取することができる。
The desired chloropolysilane can be fractionated from the resulting mixture by distillation.

〈実施態様〉 以下本発明を実施例により具体的に例示する。<Embodiment> The present invention will be specifically illustrated below with reference to Examples.

実施例1 Li とMgを酸化物に換算して1:2の割合で含む複
合酸化物を含浸法により5%担持させた活性アルミナ(
硝酸リチウム4.6g及び硝酸マグネシウム12.8g
を溶解した水200 m lを活性アルミナ(直径2〜
3+amの球状)に含浸させ、この活性アルミナを酸素
雰囲気で5時間焙焼した。)を長さ20cmの石英管に
充填した。触媒の充填されている部分を500℃に加熱
し、線速度1 cm/seeで四塩化珪素を流し、生成
物を冷却してガスクロマトグラフ法により分析した。結
果は第1表に示す。
Example 1 Activated alumina (5% of composite oxide containing Li and Mg in a ratio of 1:2 in terms of oxides) was supported by an impregnation method.
4.6g of lithium nitrate and 12.8g of magnesium nitrate
200 ml of water dissolved in activated alumina (diameter 2~
The activated alumina was impregnated with spherical particles (3+am), and the activated alumina was roasted in an oxygen atmosphere for 5 hours. ) was filled into a 20 cm long quartz tube. The part filled with catalyst was heated to 500° C., silicon tetrachloride was passed through it at a linear velocity of 1 cm/see, and the product was cooled and analyzed by gas chromatography. The results are shown in Table 1.

第1表 実施例2〜4、比較例1〜2 触媒の加熱温度を変えた他は実施例1と同様の実験を行
った。結果は第2表に示す。
Table 1 Examples 2 to 4, Comparative Examples 1 to 2 The same experiment as in Example 1 was conducted except that the heating temperature of the catalyst was changed. The results are shown in Table 2.

実施例5〜8 触媒層の長さを変えた他は実施例1と同様の実験を行っ
た。結果は第3表に示す。
Examples 5 to 8 The same experiments as in Example 1 were conducted except that the length of the catalyst layer was changed. The results are shown in Table 3.

実施例9〜lO 活性アルミナに担持させる複合酸化物の割合を変化させ
た他は実施例1と同様の実験を行った。
Example 9 - IO An experiment similar to Example 1 was conducted except that the proportion of the composite oxide supported on activated alumina was changed.

結果は第4表に示す。The results are shown in Table 4.

実施例11〜13 触媒であるLiとMgの比を変えた他は実施例1と同様
の実験を行った。結果は第5表に示す。
Examples 11 to 13 The same experiment as in Example 1 was conducted except that the ratio of Li and Mg as catalysts was changed. The results are shown in Table 5.

比較例3〜4 触媒として酸化リチウム、又は酸化マグネシウムを用い
た他は実施例1と同様の実験を行った。
Comparative Examples 3 to 4 The same experiment as in Example 1 was conducted except that lithium oxide or magnesium oxide was used as a catalyst.

結果は第6表に示す。The results are shown in Table 6.

第2表 第3表 陣量%] 第4表 [重都−%]Table 2 Table 3 Quantity%] Table 4 [Juto -%]

Claims (1)

【特許請求の範囲】 1、リチウムとマグネシウムの複合酸化物を触媒として
、200℃〜700℃の温度でクロロモノシランを重合
させることを特徴とするクロロポリシランの製造方法。 2、特許請求の範囲第1項記載の方法であって、生成系
の蒸留によって目的クロロポリシランを分別採取する方
法。
[Claims] 1. A method for producing chloropolysilane, which comprises polymerizing chloromonosilane at a temperature of 200°C to 700°C using a composite oxide of lithium and magnesium as a catalyst. 2. The method according to claim 1, in which the target chloropolysilane is fractionally collected by distillation of the product system.
JP21026485A 1985-09-25 1985-09-25 Manufacturing method of chloropolysilane Granted JPS6270425A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP21026485A JPS6270425A (en) 1985-09-25 1985-09-25 Manufacturing method of chloropolysilane

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP21026485A JPS6270425A (en) 1985-09-25 1985-09-25 Manufacturing method of chloropolysilane

Publications (2)

Publication Number Publication Date
JPS6270425A true JPS6270425A (en) 1987-03-31
JPH0417892B2 JPH0417892B2 (en) 1992-03-26

Family

ID=16586505

Family Applications (1)

Application Number Title Priority Date Filing Date
JP21026485A Granted JPS6270425A (en) 1985-09-25 1985-09-25 Manufacturing method of chloropolysilane

Country Status (1)

Country Link
JP (1) JPS6270425A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011523926A (en) * 2008-05-27 2011-08-25 シュパウント プライベート ソシエテ ア レスポンサビリテ リミテ Halogenated polysilane and heat treatment for its production

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011523926A (en) * 2008-05-27 2011-08-25 シュパウント プライベート ソシエテ ア レスポンサビリテ リミテ Halogenated polysilane and heat treatment for its production
US9617391B2 (en) 2008-05-27 2017-04-11 Nagarjuna Fertilizers And Chemicals Limited Halogenated polysilane and thermal process for producing the same

Also Published As

Publication number Publication date
JPH0417892B2 (en) 1992-03-26

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