Mitsui Toatsu Chemicals, Incorporated

Kazuo Kanaya

Tadamitsu Kiyoura

Yasuo Kogure

Tokio Nagayama

Masanobu Ajioka

Toshihide Suzuki

Naoshi Fujimoto

Takashi Jimbo

Jimbo, Takashi

Jimbo Takashi

Methanol is decomposed in the presence of a catalyst containing chromium oxide and zinc oxide as main components and containing a compound of at least one element selected from the group consisting of alkali metals, alkali earth metals and lanthanides, while contents of iron and nickel in the catalyst are each maintained at 0.5% by weight or less. This process is characterized by (1) being excellent in stability at high temperatures, (2) preventing the catalyst from deteriorating, (3) inhibiting the production of by-products, and (4) obtaining a gas in which the CO/H.sub.2 ratio is high.

Process for decomposition of methanol

A catalyst for producing maleic anhydride by oxidation of n-butane comprising V,P and additionally Mg or Zr is prepared by

Catalyst for producing maleic anhydride from butane and process for

Chlorine can be efficiently produced at a low temperature and with a high hourly space velocity by oxidizing hydrogen chloride with an oxygen-containing gas in the presence of a catalyst obtained by calcining a compound, which has in turn been obtained by reacting chromium nitrate, chromium chloride, the chromium salt of an organic acid or the like with ammonia, or by calcining a mixture of the compound and a silicon compound, preferably, at a temperature lower than 800.degree. C.

Production process of chlorine

A cayalyst precursor is produced by reacting V.sub.2 O.sub.4 with phosphoric acid in an organic solvent in the presence of a polyol. The catalyst precursor is calcined to obtain a catalyst having a high density, highly attrition-resistance and a large specific surface area and requiring only a low temperature for the oxidation of butane.

Process for producing catalyst precursor and corresponding catalyst

Manufacturing process of chlorine

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Kanagawa, Japan

Kazuo Kanaya