发明名称 |
PROCESS FOR PURIFYING 1,1-DICHLORO-2,2,2-TRIFLUOROETHANE AND 1-CHLORO-1,2,2,2-TETRAFLUOROETHANE |
摘要 |
The invention relates to a novel process for purifying HCFC-123 and HCFC-124 comprising: (a) reacting a fluorination reaction product comprising HCFC-123 and HCFC-123a and/or HCFC-124 and HCFC-124a wherein at least one of said HCFC-123a or HCFC-124a is present in an amount not less than 5 weight percent relative to HCFC-123 or HCFC-124 respectively in the product with anhydrous HF in the presence of a fluorination catalyst under conditions such that the amount of HCFC-123a and/or HCFC-124a relative to HCFC-123 and/or HCFC-124 respectively in the product is reduced to less than 5 weight percent. The pure product (i.e., HCFC-123 or HCFC-124) may be used in a variety of applications including solvent, refrigerant, sterilant gas and blowing agent applications.
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申请公布号 |
WO9511875(A1) |
申请公布日期 |
1995.05.04 |
申请号 |
WO1994US10988 |
申请日期 |
1994.09.29 |
申请人 |
ALLIEDSIGNAL INC. |
发明人 |
TUNG, HSUEH, SUNG |
分类号 |
B01J23/26;C07C17/395;(IPC1-7):C07C17/395;C07C19/12 |
主分类号 |
B01J23/26 |
代理机构 |
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主权项 |
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地址 |
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