Title:
HAZARDOUS SUBSTANCE-FIXING MATERIAL
Document Type and Number:
WIPO Patent Application WO/2000/005004
Kind Code:
A1
Abstract:
A hazardous substance-fixing material capable of fixing heavy metals stably over a long period of time, which comprises as a main component at least one of substances being capable of hydrating obtained by heating a calcium sulfoaluminate hydrate or a calcium aluminate hydrate. A mixture of the at least one substance with one or more of quick lime, slaked lime, gypsum, water granulated blast furnace slag, portland cement, iron sulfate, sodium hydrosulfide, sodium sulfide, thiourea and calcium polysulfide is more preferred. The hazardous substance-fixing material can fix not only a heavy metal, but also an anion such as chromic ion, chloride ion or the like which has been difficult to fix by use of a conventional method.
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Inventors:
Saida, Yoshiyuki (132-3, Shibamachi Kanazawa-ku Yokohama-shi Kanagawa, 236-0012, JP)
Kato, Hiromichi (A-3 Mezonkugenuma 4-8-22, Kugenuma Fujisawa-shi Kanagawa, 251-0022, JP)
Kamei, Tsukasa (604-8, Shimoochiai Isehara-shi Kanagawa, 259-1121, JP)
Urano, Teruo (775-3, Ishizukacho Sano-shi Tochigi, 327-0103, JP)
Miyaji, Hiroshi (925-4, Nishikawadacho Utsunomiya-Shi Tochigi, 321-0151, JP)
Mori, Hiroyuki (2681, Oazasenba Kuzuumachi Aso-Gun Tochigi, 328-0221, JP)
Kato, Hiromichi (A-3 Mezonkugenuma 4-8-22, Kugenuma Fujisawa-shi Kanagawa, 251-0022, JP)
Kamei, Tsukasa (604-8, Shimoochiai Isehara-shi Kanagawa, 259-1121, JP)
Urano, Teruo (775-3, Ishizukacho Sano-shi Tochigi, 327-0103, JP)
Miyaji, Hiroshi (925-4, Nishikawadacho Utsunomiya-Shi Tochigi, 321-0151, JP)
Mori, Hiroyuki (2681, Oazasenba Kuzuumachi Aso-Gun Tochigi, 328-0221, JP)
Application Number:
PCT/JP1999/002406
Publication Date:
February 03, 2000
Filing Date:
May 10, 1999
Export Citation:
Assignee:
MURAKASHI LIME INDUSTRY CO., LTD. (1-10, Miyashitacho Kuzuumachi Aso-Gun Tochigi, 327-0509, JP)
FUJI SOGYO CO., LTD. (135 Nakamaruko Nakahara-ku Kawasaki-shi Kanagawa, 211-0012, JP)
Saida, Yoshiyuki (132-3, Shibamachi Kanazawa-ku Yokohama-shi Kanagawa, 236-0012, JP)
Kato, Hiromichi (A-3 Mezonkugenuma 4-8-22, Kugenuma Fujisawa-shi Kanagawa, 251-0022, JP)
Kamei, Tsukasa (604-8, Shimoochiai Isehara-shi Kanagawa, 259-1121, JP)
Urano, Teruo (775-3, Ishizukacho Sano-shi Tochigi, 327-0103, JP)
Miyaji, Hiroshi (925-4, Nishikawadacho Utsunomiya-Shi Tochigi, 321-0151, JP)
Mori, Hiroyuki (2681, Oazasenba Kuzuumachi Aso-Gun Tochigi, 328-0221, JP)
FUJI SOGYO CO., LTD. (135 Nakamaruko Nakahara-ku Kawasaki-shi Kanagawa, 211-0012, JP)
Saida, Yoshiyuki (132-3, Shibamachi Kanazawa-ku Yokohama-shi Kanagawa, 236-0012, JP)
Kato, Hiromichi (A-3 Mezonkugenuma 4-8-22, Kugenuma Fujisawa-shi Kanagawa, 251-0022, JP)
Kamei, Tsukasa (604-8, Shimoochiai Isehara-shi Kanagawa, 259-1121, JP)
Urano, Teruo (775-3, Ishizukacho Sano-shi Tochigi, 327-0103, JP)
Miyaji, Hiroshi (925-4, Nishikawadacho Utsunomiya-Shi Tochigi, 321-0151, JP)
Mori, Hiroyuki (2681, Oazasenba Kuzuumachi Aso-Gun Tochigi, 328-0221, JP)
International Classes:
B09B3/00; A62D3/33; C02F11/00; C04B7/32; C04B7/345; C04B18/04; C04B22/14; C04B28/06; A62D101/08; A62D101/43; A62D101/45; A62D101/47; A62D101/49; B09B3/00; A62D3/00; C02F11/00; C04B7/00; C04B18/04; C04B22/00; C04B28/00; (IPC1-7): B09B3/00; A62D3/00; C04B7/345
Attorney, Agent or Firm:
Aoso, Shoji (Iriyama Building 5th floor 17-2, Nihonbashi-Ningyocho 1-chome Chuo-ku Tokyo, 103-0013, JP)
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