6 results about "Fluorohydrocarbon" patented technology

A method of producing fluoroolefin includes contacting a fluorocarbon represented by Formula (1): CX1X2F—CX3X4H with a catalyst to produce a fluoroolefin represented by Formula (2): CX1X2═CX3X4, and satisfies either (I) or (II). (I) The catalyst includes 65% by mass or more of α-alumina and has an amount of Lewis acid sites of from 0.005 to 0.10 mmol / g as measured by ammonia temperature-programmed desorption method. (II) A conversion rate 10 hours after contacting the fluorocarbon with the catalyst is from 7.0 to 13.0%, and a conversion retention rate, which is a ratio of the conversion rate 50 hours after contact to a conversion rate after 10 hours, is 69% or higher.

A method of treating a process waste stream contaminated with fluorinated hydrocarbons, the method comprising: adding a fluoride anion scavenger to the process waste stream; and contacting the process waste stream with a platinum group metal catalyst to defluorinate the fluorinated hydrocarbons liberating fluoride anions which are scavenged by the fluoride scavenger.

A method of producing fluoroolefin includes contacting a fluorocarbon represented by Formula (1): CX1X2F—CX3X4H with an alumina-containing catalyst to produce a fluoroolefin represented by Formula (2): CX1X2═CX3X4, in which the alumina-containing catalyst satisfies at least one of the following conditions (I) or (II). (I) A total content of alkali metal elements and alkaline earth metal elements is 100 ppm by mass or less. (II) A Si content is 1000 ppm by mass or less.

The present disclosure mainly addresses the problem of providing a novel method for producing a fluoroolefin.　Provided as a solution is a method for producing a fluoroolefin represented by general formula (1): CX1X2=CX3X4 (where X1, X2, X3, and X4 are identical or different and each represent a hydrogen atom, a fluorine atom, or a chlorine atom, and at least one of X1, X2, X3, and X4 is a fluorine atom), said method comprising a dehydrohalogenation step for bringing a fluorocarbon represented by general formula (2): CX1X2HCX3X4Y (where X1, X2, X3, and X4 are the same as above, and Y is a fluorine atom or a chlorine atom) into contact with a noble metal catalyst to perform dehydrohalogenation.

A refrigerator oil composition used in a refrigerant containing one or more unsaturated fluorinated hydrocarbon compounds selected from compounds represented by the following general formula (1): CxFyHz (1), wherein x is an integer of 2 to 6, y is an integer of 1 to 11, z is an integer of 1 to 11, and there are one or more carbon-carbon unsaturated bonds in the molecule, the refrigerator oil composition containing a base oil (A) that includes polyvinyl ether, a modified silicone compound (B), and a specific epoxy compound (C).