Title:
MAGNETIC CHEMICAL ABSORBER, PROCESS FOR PRODUCING THE SAME, METHOD OF REGENERATING THE SAME, AND METHOD OF TREATING WASTE LIQUID
Document Type and Number:
WIPO Patent Application WO/2008/023853
Kind Code:
A1
Abstract:
A magnetic chemical absorber which comprises a composite constituted of a core substance comprising fine magnetite particles and schwertmannite deposited on this core substance and chemically bonded thereto. This magnetic chemical absorber can be produced in a hydrolytic reaction step in which a solution of a ferric salt is heated and a reactive substance is then added thereto to conduct a hydrolytic reaction and thereby precipitate schwertmannite crystals, by adding fine magnetite particles to the solution after the solution has been heated and before the crystal precipitation begins. This magnetic chemical absorber is a novel and excellent one more improved in the ability to absorb harmful ions. A method of treating a waste liquid using this magnetic chemical absorber is effective in reducing burdens from the standpoints of the environment and profitability. This magnetic chemical absorber can be regenerated.
Inventors:
OKIDO, Masazumi (1 Furo-cho, Chikusa-ku, Nagoya-sh, Aichi 01, 4648601, JP)
興戸正純 (〒01 愛知県名古屋市千種区不老町１番国立大学法人名古屋大学内 Aichi, 4648601, JP)
BANDO, Yoshiyuki (1 Furo-cho, Chikusa-ku, Nagoya-sh, Aichi 01, 4648601, JP)
坂東芳行 (〒01 愛知県名古屋市千種区不老町１番国立大学法人名古屋大学内 Aichi, 4648601, JP)
ESKANDARPOUR, Akbar (1 Furo-cho, Chikusa-ku, Nagoya-sh, Aichi 01, 4648601, JP)
興戸正純 (〒01 愛知県名古屋市千種区不老町１番国立大学法人名古屋大学内 Aichi, 4648601, JP)
BANDO, Yoshiyuki (1 Furo-cho, Chikusa-ku, Nagoya-sh, Aichi 01, 4648601, JP)
坂東芳行 (〒01 愛知県名古屋市千種区不老町１番国立大学法人名古屋大学内 Aichi, 4648601, JP)
ESKANDARPOUR, Akbar (1 Furo-cho, Chikusa-ku, Nagoya-sh, Aichi 01, 4648601, JP)
Application Number:
JP2007/067094
Publication Date:
February 28, 2008
Filing Date:
August 27, 2007
Export Citation:
Assignee:
NATIONAL UNIVERSITY CORPORATION NAGOYA UNIVERSITY (1 Furo-cho, Chikusa-ku Nagoya-sh, Aichi 01, 4648601, JP)
国立大学法人名古屋大学 (〒01 愛知県名古屋市千種区不老町１番 Aichi, 4648601, JP)
OKIDO, Masazumi (1 Furo-cho, Chikusa-ku, Nagoya-sh, Aichi 01, 4648601, JP)
興戸正純 (〒01 愛知県名古屋市千種区不老町１番国立大学法人名古屋大学内 Aichi, 4648601, JP)
BANDO, Yoshiyuki (1 Furo-cho, Chikusa-ku, Nagoya-sh, Aichi 01, 4648601, JP)
坂東芳行 (〒01 愛知県名古屋市千種区不老町１番国立大学法人名古屋大学内 Aichi, 4648601, JP)
国立大学法人名古屋大学 (〒01 愛知県名古屋市千種区不老町１番 Aichi, 4648601, JP)
OKIDO, Masazumi (1 Furo-cho, Chikusa-ku, Nagoya-sh, Aichi 01, 4648601, JP)
興戸正純 (〒01 愛知県名古屋市千種区不老町１番国立大学法人名古屋大学内 Aichi, 4648601, JP)
BANDO, Yoshiyuki (1 Furo-cho, Chikusa-ku, Nagoya-sh, Aichi 01, 4648601, JP)
坂東芳行 (〒01 愛知県名古屋市千種区不老町１番国立大学法人名古屋大学内 Aichi, 4648601, JP)
International Classes:
B01J20/06; B01J20/34; B03C1/00; C01G49/00; C02F1/28
Attorney, Agent or Firm:
OHKAWA, Hiroshi (2-5 Meieki 3-chome, Nakamura-ku Nagoya-sh, Aichi 02, 4500002, JP)
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