Asahi Glass Company, Limited

Ag Technology Co., Ltd.

Keiichi Ohnishi

Hidekazu Okamoto

Toshihiro Tanuma

Shinsuke Morikawa

Koichi Yanase

Ryutaro Takei

Toru Kawasaki

Masato Fukushima

Hirokazu Takagi

Shin Tatematsu

Shunichi Samejima

Kenrou Kitamura

Kazuya Oharu

Takashi Ohmori

Masashi Matsuo

Masaru Yoshitake

Nobuyuki Yamagishi

Yukio Jitsugiri

Toru Shimoyama

Makoto Noshiro

Hideyuki Kurata

Yoshio Sato

Naoko Wada

A process for producing hexafluoropropylene oxide, which comprises contacting a reaction product containing hexafluoropropylene oxide obtained by reacting hexafluoropropylene with oxygen, with at least one adsorbent selected from activated carbon and the following metal oxides, wherein the metal oxides are oxides of at least one metal selected from Groups 1 and 2 of the Periodic Table, Zr and Si.

Process for producing hexafluoropropylene oxide

F(CF ) (CH ) NH is produced in high yield, while reducing the amount of by-products contained in the reaction product and preventing the reactor from corroding. Provided is a process for producing a fluorinated alkylamine compound, which comprises reacting a compound represented by F(CF ) (CH ) X (wherein X represents a chlorine atom, a bromine atom or an iodine atom, and n and m each independently represents an integer of at least 1) with NH to produce a compound represented by F(CF ) (CH ) NH (wherein n and m have the same meanings as the above), and is characterized by conducting the reaction in the presence of a reaction solvent comprising an alkanediol as an essential component.

Process for producing fluorinated alkylamine compound

A method for reducing the content of unsaturated impurities contained in 1,1,1,3,3-pentafluoropropane (R245fa), while maintaining the loss of R245fa at a minimum level. R245fa containing unsaturated impurities is contacted in a gas phase with chlorine gas in the presence of an activated carbon catalyst, thereby converting the unsaturated impurities to the chlorine addition compounds to reduce the content of the unsaturated impurities.

Method of treating 1,1,1,3,3-pentafluoropropane

Method for producing dichloropentafluoropropanes

A method for producing a hydrogen-containing fluorinated alkane, which comprises fluorinating at least one halogenated hydrocarbon selected from a chlorinated ethylene and a hydrogen-containing chlorinated alkane by hydrogen fluoride in the presence of a fluorination catalyst, in a reaction system where a corrosion-resistant metal material containing at least 10 wt % of aluminum, is present.

Method for producing a hydrogen-containing fluorinated alkane

A fluorine-containing hydrocarbon composition comprising the following (1) and (2), wherein the proportions of (1) and (2) in the composition are such that (1) is 100 parts by weight, and (2) is from 0.001 to 10 parts by weight:

Fluorine-containing hydrocarbon composition

Method for producing a polyfluoropropionyl halide

A method for producing 1,1,1,3,3-pentafluoropropane, which comprises reducing at least one chlorofluorohydrocarbon selected from the group consisting of CF.sub.3 CClXCClF.sub.2 wherein X is a H atom or a Cl atom, and CF.sub.3 CCl.dbd.CF.sub.2, with hydrogen in the presence of a reduction catalyst comprising, as a first component, at least one metal selected from the group consisting of Ru, Rh, Pd and Pt, and, as a second component, at least one metal selected from the group consisting of Ni, Co, La, Re, W, Ta, Nb, Ti, Zr, Mo, Cu, Ag and Au.

Method for producing1,1,1,3,3-pentafluoropropane

A process for preparing 1,1,1,3,3-pentafluoropropane, which comprises reacting 1,1-difluoroethylene with dichlorofluoromethane in the presence of a Lewis acid catalyst to form 1,2,2-trihydrodichlorotrifluoropropane and fluorinating the 1,2,2-trihydrodichlorotrifluoropropane with hydrogen fluoride.

Process for preparing 1,1,1,3,3-pentafluoropropane

A process for producing a hydrogen-containing 2,2-difluoropropane of the following formula (2), which comprises subjecting a 2,2-difluoropropane of the following formula (1) to hydrogen reduction:

Process for producing a hydrogen-containing 2,2-difluoropropane

A method for producing a dichloropentafluoropropane, which comprises reacting dichlorofluoromethane (R21) with tetrafluoroethylene (4F) in the presence of a Lewis acid catalyst for addition reaction to obtain dichloropentafluoropropane, wherein a halide containing at least one element selected from the group consisting of Sb, Nb, Ta, B, Ga, In, Zr, Hf and Ti, or AlBr.sub.3, or AlI.sub.3, is used as the Lewis acid.

A process for producing a 2,2-difluoropropane of the following formula (2), which comprises fluorinating a chlorine-containing 2,2-halogenopropane of the following formula (1) by hydrogen fluoride or a fluorinating agent:

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Yokohama, Japan

Keiichi Ohnishi