Purification process for silane compound

Details Purification process for silane compound Purification process for silane compound

1996-09-06

1998-09-08

Manoharan, Virginia

Distillation: processes, separatory

Adding material to distilland except water or steam per se

Organic compound

203 60, 203 75, 203 78, 203 82, 203 84, 556466, 556482, B01D 334, B01D 336, C07F 720

Patent

active

058040404

ABSTRACT:
There is provided a purification process for dimethoxymethylsilane in which a mixture containing dimethoxymethylsilane and methanol is subjected to a first distillation step in which the mixture is distilled in the presence of methyl formate or methoxytrimethylsilane so that a distillate fraction containing methanol and methyl formate or methoxytrimethylsilane is distilled off and a balance fraction containing dimethoxymethylsilane and methanol is discharged, the amount of methanol in the balance fraction being substantially reduced relative to that of the mixture.

REFERENCES:
patent: 4204915 (1980-05-01), Kurata et al.
patent: 4471133 (1984-09-01), Hallgren
patent: 5084589 (1992-01-01), Legrow
patent: 5504235 (1996-04-01), Hirose et al.

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