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Title:
CARBONACEOUS UNSHAPED REFRACTORY
Document Type and Number:
WIPO Patent Application WO/2021/065008
Kind Code:
A1
Abstract:
The present invention provides a carbonaceous unshaped refractory that presents no problems in terms of safety and hygiene, imposes a relatively low burden on the global environment, and has sufficient function and features during furnace installation and operation. This carbonaceous unshaped refractory is configured from a mixture of a natural carbon material and an edible aqueous binder solution, and is such that the total amount of polycyclic aromatic hydrocarbons is 100 ppm or less. The natural carbon material is preferably obtained by mixing one or more from among anthracite, calcined anthracite, and natural graphite. The edible aqueous binder solution is preferably obtained by mixing one or more from among water-soluble polysaccharides and synthetic thickeners, and preferably is a viscous material having a viscosity of 500-20,000 cp at 20°C.

Inventors:
MATSUMOTO Naoki (5600 Kambara, Shimizu-ku, Shizuoka-sh, Shizuoka 03, JP)
SUGIYAMA Yukihiro (5600 Kambara, Shimizu-ku, Shizuoka-sh, Shizuoka 03, JP)
TODA Shinjiro (5600 Kambara, Shimizu-ku, Shizuoka-sh, Shizuoka 03, JP)
Application Number:
JP2019/039385
Publication Date:
April 08, 2021
Filing Date:
October 04, 2019
Export Citation:
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Assignee:
NIPPON ELECTRODE CO., LTD. (Shimizu-ku Shizuoka-sh, Shizuoka 03, JP)
International Classes:
F27D1/00; C04B35/66
Attorney, Agent or Firm:
KIUCHI Mitsuharu et al. (Toranomon-Yoshiara Bldg. 6-13, Nishi-shinbashi 1-chome, Minato-k, Tokyo 03, JP)
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