摘要:
This invention relates to cleaning compositions comprising unsaturated fluorinated hydrocarbons. The invention further relates to use of said cleaning compositions in methods to clean, degrease, deflux, dewater, and deposit fluorolubricant. The invention further relates to novel unsaturated fluorinated hydrocarbons and their use as cleaning compositions and in the methods listed above.
摘要:
A vapor phase process is disclosed for making internal fluorobutenes. The process involves contacting a halobutane starting material selected from the group consisting of CF2HCHClCH2CCl2H, CF2HCHClCH2CCl3, CF3CHClCH2CCl2H, CF3CHClCH2CCl3, CF3CHClCHClCCl2H, CF3CHClCHClCCl3, CF3CCl2CH2CCl2H, CF3CCl2CH2CCl3, CF3CCl2CHClCCl2H, CF3CCl2CHClCCl3, CF3CClFCHClCCl2H, CF3CClFCHClCCl3, CF3CClFCH2CCl2H, CF3CClFCH2CCl3, CF3CClFCHFCCl2H, CF3CClFCHFCCl3, CF3CClHCHFCCl2H and CF3CClHCHFCCl3, with HF in a reaction zone in the presence of a chromium oxyfluoride catalyst to produce a product mixture comprising an internal fluorobutene. Another vapor phase process is disclosed for making internal fluoropentenes. The process involves contacting a halopentane starting material selected from the group consisting of CF2HCHXCH2CX2CX3, CF3CHXCH2CX2CX3, CF3CHXCHXCX2CX3, CF3CX2CH2CX2CX3, CF3CX2CHXCX2CX3 and CF3CHXCHFCX2CX3, with HF in a reaction zone in the presence of a chromium oxyfluoride catalyst to produce a product mixture comprising an internal fluoropentene, wherein each X is independently selected from the group consisting of F, Cl and Br, provided that not all X are fluorines.
摘要:
A process is disclosed for producing addition compound CF3CCl2CH2CClXR, wherein X═H, F, Cl or Br, and R═H or a perhalogenated alkyl group, provided that X and R are not both H. The process involves a liquid phase reaction of 1,1,1-trichlorotrifluoroethane with CH2═CXR in the presence of an addition catalyst.
摘要翻译:公开了制备加成化合物CF 3 CCl 2 CH 2 ClClR的方法,其中X = H,F,Cl或Br,以及R = H或全卤代烷基,条件是X和R不同时为H.该方法涉及液相反应1 ,在加成催化剂存在下,使用CH 2 = C X R的1,1-三氯三氟乙烷。
摘要:
Disclosed herein is a process for the preparation of fluorine-containing olefins comprising contacting a chlorofluoroalkene with hydrogen in the presence of a catalyst at a temperature sufficient to cause replacement of the chlorine substituents with hydrogen. Also disclosed is a catalyst composition for the hydrodechlorination of chlorofluoroalkenes comprising copper metal deposited on a support.
摘要:
A vapor phase process is disclosed for making internal fluorobutenes. The process involves contacting a halobutane starting material selected from the group consisting of CF2HCHClCH2CCl2H, CF2HCHClCH2CCl3, CF3CHClCH2CCl2H, CF3CHClCH2CCl3, CF3CHClCHClCCl2H, CF3CHClCHClCCl3, CF3CCl2CH2CCl2H, CF3CCl2CH2CCl3, CF3CCl2CHClCCl2H, CF3CCl2CHClCCl3, CF3CClFCHClCCl2H, CF3CClFCHClCCl3, CF3CClFCH2CCl2H, CF3CClFCH2CCl3, CF3CClFCHFCCl2H, CF3CClFCHFCCl3, CF3CClHCHFCCl2H and CF3CClHCHFCCl3, with HF in a reaction zone in the presence of a chromium oxyfluoride catalyst to produce a product mixture comprising an internal fluorobutene. Another vapor phase process is disclosed for making internal fluoropentenes. The process involves contacting a halopentane starting material selected from the group consisting of CF2HCHXCH2CX2CX3, CF3CHXCH2CX2CX3, CF3CHXCHXCX2CX3, CF3CX2CH2CX2CX3, CF3CX2CHXCX2CX3 and CF3CHXCHFCX2CX3, with HF in a reaction zone in the presence of a chromium oxyfluoride catalyst to produce a product mixture comprising an internal fluoropentene, wherein each X is independently selected from the group consisting of F, Cl and Br, provided that not all X are fluorines.