Kusatsu Electric Co., Ltd.

Rapas Corporation

Sakai Chemical Industry Co., Ltd.

Itsushi Kashimoto

Yoshihide Kitamura

Tatsuo Kitamura

Keiko Kitamura

Masahiro Nishimura

Hiromitsu Shimizu

Toshikatsu Umaba

Mitsuru Masatsugu

Rice straw and chaff that are discharged as agricultural waste in large amounts are effectively utilized. The present invention has been completed on the basis of the finding that silica can be recovered with high efficiency by bringing heated titanium oxide into contact with a silica-containing plant body.

Method for recovering silica from silica-containing plant body using titanium oxide

Waste treatment and recycling of a carbon fiber-reinforced plastic and a glass fiber-reinforced plastic are difficult owing to their excellent characteristics. The present invention has been completed on the basis of the finding that a reinforcing material can be recovered with high efficiency by bringing heated titanium oxide granules into contact with a reinforced plastic.

Method for using titanium oxide granules to recover reinforcing material from reinforced plastic

An object of the present invention is to provide titanium oxide granules that have a novel structure and have a characteristic of highly efficient decomposing capability, and a method of decomposing plastic and organic waste by using the granules. The present invention has been completed based on the finding that a method of decomposing plastic waste by using titanium oxide granules having a transition metal and/or a transition metal oxide, in particular copper, supported thereon enables decomposition of plastic waste at extremely high efficiency in a low-temperature region for a long period of time as compared to methods of decomposing plastic waste by using the related-art titanium oxide granules.

Granular body of titanium oxide having transition metal and/or transition metal oxide supported thereon, and method for decomposing waste plastic/organic material using said granular body

The invention provides a catalyst for thermal decomposition of an organic substance having the form of spherical granule having a particle diameter of 0.1 to 1.2 mm, a pore volume of 0.1 to 0.3 mL/g, a tap density of 1.05 to 1.4 g/mL, and a wear rate of 2% by weight or less, the catalyst being obtained by mixing and granulating a pulverized product of an inorganic oxide exemplified by titanium oxide with at least one sol selected from a titania sol, a silica sol, an alumina sol, and a zirconia sol to make spherical granules, calcining the spherical granules at a temperature from 400 to 850&#xb0; C., and sieving the calcined granules.

Catalyst and method for thermal decomposition of organic substance and method for producing such catalyst

Provided is a method of decomposing plastic and organic waste by using titanium oxide granules which are easily separated from metals and inorganic substances, have a highly efficient decomposing capability, and have a characteristic of fine powder formation resistance during pyrolysis. More specifically, the method of decomposing plastic and organic waste by using titanium oxide granules which are easily separated from metals and inorganic substances, have a highly efficient decomposing capability, and have a characteristic of fine powder formation resistance during pyrolysis has been established by optimizing the characteristics of titanium oxide granules.

Method of decomposing waste plastic/organic material using titanium oxide granule with optimal particle property

A decomposition apparatus and a decomposition system for high-efficiency decomposition of waste plastic and organic matter, in particular medical waste formed of varieties of plastic, are provided by introduction of a catalyst circulating means using a rotary wheel and/or introduction of a mixing vessel.

Catalyst circulating waste plastic/organic matter decomposition apparatus and decomposition system

A method of decomposing waste plastics, organics, and particularly medical waste composed of a varieties of plastics is described.

Decomposition method of waste plastics and organics

To provide a decomposition apparatus and a decomposition system which can prolong the catalyst life and which can efficiently decompose a large amount of waste plastics and organics.

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Kusatsu, Japan

Itsushi Kashimoto