Method for synthesizing trifluoroiodomethane and pentafluoroethyliodide meanwhile

A technology for pentafluoroiodoethane and trifluoroiodomethane is applied in the field of simultaneous synthesis of trifluoroiodomethane and pentafluoroiodoethane, and can solve the problems of easy runaway, unsafe, high salt toxicity and the like of heating solid reactant reactions, Achieving the effect of being suitable for technological production, the synthesis process is safe, and the stability is good

A technology for pentafluoroiodoethane and trifluoroiodomethane is applied in the field of simultaneous synthesis of trifluoroiodomethane and pentafluoroiodoethane, and can solve the problems of easy runaway, unsafe, high salt toxicity and the like of heating solid reactant reactions, Achieving the effect of being suitable for technological production, the synthesis process is safe, and the stability is good

CN101219925AActive Publication Date: 2008-07-16泉州宇极新材料科技有限公司
2 Cites 21 Cited by

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for synthesizing trifluoroiodomethane and pentafluoroethyliodide meanwhile

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0029] Below in conjunction with embodiment the present invention is further described.

[0030] The raw materials used in the present invention are all commercially available.

[0031] According to the characteristics of trifluoroiodomethane and pentafluoroiodoethane, the present invention adopts trifluoromethane, pentafluoroethane and iodine to catalyze reaction at high temperature under oxygen condition, and the preparation method comprises the following steps:

[0032] Implementation example 1

[0033] Catalyst preparation: 15ml carrier aluminum fluoride (BET specific surface area about 70m 2 / g) Wash with distilled water and dry in an oven at 120°C for 2 hours. The weighed active ingredient RbNO 3 1.6g and 0.8g of KF were dissolved in distilled water, then added to the dried carrier and left to stand overnight. After standing still, treat with a rotary evaporator, adjust the rotary evaporator to evaporate to dryness under reduced pressure at 80°C, 0.3atm, 120r / min, an...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
specific surface areaaaaaaaaaaa
specific surface areaaaaaaaaaaa
specific surface areaaaaaaaaaaa
Login to View More

Abstract

The invention relates to a method of synthesizing CF_3I and C2F5I simultaneously, which belongs to the filed of organic chemical synthesis. The method of synthesizing CF_3I and C2F5I simultaneously is characterized in that a alkali metal salt, a alkali earth metal salts or / and a copper salt are taken as a catalyst to be attached to a porous carrier; an oxygen or mixed gas of oxygen and an inert gas is pumped; a CHF3 and / or a HFC_125 are taken as a raw material; an iodine is taken as an iodinating agent; then iodination occurs in a reactor under high temperature to generate the C2F5I and the CF_3I. The porous carrier is a fluoride or an oxyfluoride. The raw material of the invention is nontoxic and is convenient to get; the catalyst does not react with a reaction medium and has good stability. The synthesis process is safe and suitable for technical production.

Description

technical field [0001] The invention is a method for simultaneously synthesizing trifluoroiodomethane and pentafluoroiodoethane, and relates to a method for synthesizing trifluoroiodomethane (HFC-23) or pentafluoroethane (HFC-125) with iodine and oxygen under the action of a catalyst. A method for simultaneously synthesizing trifluoroiodomethane and pentafluoroiodoethane in the gas phase. Background technique [0002] Trifluoroiodomethane (CF 3 I) and pentafluoroiodoethane (C 2 f 5 1) has very high industrial value, is used for fire extinguishing agent, refrigerant, has higher application value in the initial telomerization agent of perfluoroalkyl iodide and the synthesis of fluorine-containing fine chemicals such as fluorine-containing pharmaceutical intermediates simultaneously . [0003] The fire extinguishing performance of trifluoroiodomethane is equivalent to that of Halon 1301, and it is the same gas fire extinguishing agent as Halon 1301, leaving no trace after f...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
16 Jul 2008
Publication
CN101219925A
IPC
C07C19/16; C07C17/158
Inventors
刘东明; 杨光成