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Patent Searching and Data


Title:
PRODUCTION OF HOLLOW ACTIVE CARBON COMPACT
Document Type and Number:
Japanese Patent JP3175288
Kind Code:
B2
Abstract:

PURPOSE: To extremely readily obtain lightweight hollow active carbon compacts of various desired shapes, excellent in active carbon function and good in handleability without requiring a complicated process for production at all.
CONSTITUTION: A granular material of a thermoplastic resin such as polyethylene is arranged in active carbon powder and heat-treated. The heat treatment is carried out for carbonizing the thermoplastic resin, but once melting the surface of the thermoplastic resin and then carbonizing the surface. For example, in the case of the polyethylene, carbonizing treatment in a nonoxidizing atmosphere is carried out after infusibilizing treatment at a relatively low temperature in an oxidizing atmosphere.


Inventors:
Fujimagari, Hitoshi
Application Number:
JP10209792A
Publication Date:
June 11, 2001
Filing Date:
March 27, 1992
Export Citation:
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Assignee:
PENTEL KK
International Classes:
C01B31/08; C04B38/00; C04B38/06; (IPC1-7): C04B38/06; C01B31/08