Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...
Patent
1997-11-10
1999-08-03
Reamer, James H.
Organic compounds -- part of the class 532-570 series
Organic compounds
Heterocyclic carbon compounds containing a hetero ring...
502243, C07D30104
Patent
active
059327502
DESCRIPTION:
BRIEF SUMMARY
FIELD OF THE INVENTION
The present invention relates to a partially-oxidizing catalyst for partially oxidizing a hydrocarbon and a method for partially oxidizing hydrocarbon by which an alcohol and/or a ketone can be obtained from a saturated hydrocarbon and an epoxide can be obtained from a hydrocarbon of the olefin family (an unsaturated hydrocarbon), by partially oxidizing the hydrocarbon by using the partially-oxidizing catalyst in the presence of oxygen and hydrogen.
More specifically, the present invention relates to a partially-oxidizing catalyst for a hydrocarbon with a titanium-containing metal oxide having gold deposited thereon, which is preferably used as a catalyst for manufacturing an epoxide from a hydrocarbon of the olefin family and which is also preferably used as a catalyst for manufacturing an alcohol and/or a ketone from a saturated hydrocarbon, and also concerns a method for partially oxidizing hydrocarbon by using the partially-oxidizing catalyst, which is suitable for manufacturing an alcohol and/or a ketone from a saturated hydrocarbon.
BACKGROUND OF THE INVENTION
Conventionally, with respect to partially-oxidizing methods for hydrocarbon, processes for directly manufacturing an epoxide by partially oxidizing a hydrocarbon of the olefin family have been carried out; however, in most of these processes, oxidizers, such as hydrogen peroxide, organic peracids, and chlorine compounds, are used.
In contrast, processes for transforming hydrocarbons into oxygen-containing compounds by using oxygen, such as, for example, processes for directly manufacturing epoxides from hydrocarbons of the olefin family through a partially-oxidizing reaction using oxygen, have been considered as a very prospective technique since oxygen, which is inexpensive as compared with the above-mentioned oxidizers, is used.
However, it is generally considered to be difficult to directly obtain an alcohol and a ketone that are useful compounds from a saturated hydrocarbon and also to directly obtain an epoxide from an unsaturated hydrocarbon except for rare exceptions, and these practices have hardly been carried out except for a manufacturing method for ethylene oxide.
In particular, with respect to methods for manufacturing propylene oxide by oxygen-oxidizing propylene and catalysts used therein, many suggestions have been made; however, none of these methods have been successfully put into practice since conventional commonly-used catalysts raise problems in performances such as low selectivity.
In order to solve these problems, direct-oxidizing methods, etc., such as the chlorohydrin method, the HALCON method, and the acetyl-hydroperoxide method, have generally been used as the methods for manufacturing propylene oxide by oxygen-oxidizing propylene. However, these manufacturing methods raise other problems in which two reaction processes (two stages) are required and by-products (additional produces) are produced.
For this reason, simpler, more effective manufacturing methods have been demanded, and various methods for manufacturing propylene oxide by directly oxygen-oxidizing (partially oxidizing) propylene that is a hydrocarbon of the olefin family and catalysts used for the manufacturing methods have been proposed.
For example, Japanese Laid-Open Patent Publication No. 97378/1995 (Tokukaihei 7-97378) discloses a method for manufacturing olefin oxide (an epoxide) from olefin (an unsaturated hydrocarbon) in a gaseous phase by using as a catalyst crystalline silicate (silicate) on which metallic salt of nitric acid, such as silver nitrate, is deposited.
Further, Japanese Laid-Open Patent Publication No. 352771/1992 (Tokukaihei 4-352771) discloses a method for manufacturing propylene oxide from propylene in a liquid phase by using a catalyst made of a metal of the VIII family and crystalline titano-silicate.
However, since the catalysts used in these manufacturing methods are inferior in catalyst performances such as activity and selectivity, it has to be said that the above-mentioned conventional methods fai
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Haruta Masatake
Hayashi Toshio
Tsubota Susumu
Wada Masahiro
Agency of Industrial Science and Technology
Nippon Shokubai Co. , Ltd.
Reamer James H.
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