Other

Prometron Technics Corp.

Teruo Henmi

Shuji Tada

Hirokuni Matsuda

Takayuki Nakamura

Yoshihisa Asada

Etsuro Sakagami

Takao Ando

Toshiaki Ubukata

Toru Tonegawa

A method of manufacturing an artificial zeolite. The method includes the steps of: heating a waste insulator to form a molten insulator; quenching and pulverizing the molten insulator; and heat treating the quenched and pulverized insulator in an alkaline aqueous solution.

Method of manufacturing artificial zeolite

A method of manufacturing a solid acid catalyst using industrial waste such as an insulator, optical fiber, and tip material is provided. The raw material contains a template agent, a compound having a formula of RCOR, where Rand Rare alkyl groups, a silicon-containing inorganic compound, an aluminum-containing inorganic compound, and water with a weight ratio of SiO/AlOof at least 1,000. The raw material is heat treated in a closed chamber (a first heat treatment), and heat treated in an atmosphere containing oxygen (a second heat treatment).

Method of manufacturing solid acid catalyst

The present invention provides a zero emission type method for effective use permitting economical and effective manufacture of zeolite effectively applicable in various sectors of industry by using silicon-containing waste comprising at least one of exhaust gas treatment sludge mainly comprising SiO discharged from an optical film manufacturing plant, optical fiber refuse and preform refuse, and aluminum-containing waste comprising at least one of aluminum dross discharged from an aluminum-related manufacturing plant, aluminum dust collection ashes, sludge mainly comprising aluminum hydroxide, cleaning waste liquid of aluminum or an alloy thereof, scrap of metal aluminum or an alloy thereof, and alumina scrap.

Manufacturing method of zeolite from waste

The topic of the present invention is the development of a method of producing inexpensive artificial zeolite of the desired quality employing unused resources, such as descended pyroclastic materials, incineration ash, glass waste, diatomaceous earth waste, aluminum dross, etc., as the starting materials. The present invention is a method whereby artificial zeolite is produced by heat treatment in the presence of water and alkali of an inorganic component comprising silicic acid or aluminum, or a mixture that has been obtained by adding glass, diatomaceous earth and aluminum dross, etc., to an inorganic component comprising silicic acid or aluminum. It is preferred that the alkali is sodium hydroxide or potassium hydroxide, the water and alkali are an aqueous alkali solution, the concentration of this aqueous alkali solution is 2 to 4 N, and heat treatment exceeds 100&deg; C.

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Matsuyama, Japan

Teruo Henmi