Kureha Corporation

Kureha Kagaku Kogyo Kabushiki Kaisha

Yoshiki Shigaki

Hiroaki Ohashi

Masaru Kagoshima

An apparatus for continuous high temperature gas treatment of particulate matter including a starting material supply port () through which starting particulate matter is supplied from an upper part of the apparatus; a treatment, gas supply port () through which a treating gas is supplied; a product discharge port () through which a product after treatment is discharged from a lower part of the apparatus; a treatment chamber () in which the particulate matter is treated with the treatment gas; a gas-solid separation chamber () provided in fluid communication with an upper part of the treatment chamber (); and a cooling chamber () provided in fluid communication with a lower part of the treatment chamber (). A heater () is provided on the outer periphery of the upper part of the treatment chamber (), and a cooler () is provided on the outer periphery of the cooling chamber ().

Apparatus and method for continuous high temperature gas treatment of particulate matter

An apparatus for continuous high temperature gas treatment of particulate matter including a starting material supply port () through which starting particulate matter is supplied from an upper part of the apparatus; a treatment gas supply port () through which a treating gas is supplied; a product discharge port () through which a product after treatment is discharged from a lower part of the apparatus; a treatment chamber () in which the particulate matter is treated with the treatment gas; a gas-solid separation chamber () provided in fluid communication with an upper part of the treatment chamber (); and a cooling chamber () provided in fluid communication with a lower part of the treatment chamber (). A heater () is provided on the outer periphery of the upper part of the treatment chamber (), and a cooler () is provided on the outer periphery of the cooling chamber ().

A battery electrode material having a large charge-discharge capacity and capable of providing a (non-aqueous solvent-type secondary) battery of a high energy density is provided in the form of a carbonaceous material having a microtexture suitable for doping with lithium (ions). Such a carbonaceous material is produced through a process of heating a starting organic material for carbonization including a step of heating the organic material in a halogen gas-containing inert gas atmosphere in a specific temperature range (800.degree.-1400.degree. C.) below the final carbonization temperature.

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Iwaki, Japan

Yoshiki Shigaki