The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 31, 1995
Filed:
Sep. 17, 1993
Takashi Nishi, Hitachi, JP;
Masami Matsuda, Hitachi, JP;
Kenji Noshita, Hitachi, JP;
Makoto Kikuchi, Hitachi, JP;
Tatsuo Izumida, Katsuta, JP;
Shin Tamata, Ooarai, JP;
Yoshimasa Kiuchi, Katsuta, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
Objective of the present invention is to provide a preferable solidified body ensuring performance of artificial barrier in a solidifying process for incombustible miscellaneous solid waste and other wastes such as calcined ashes by preventing generation of hydrogen gas by a reaction of amphoteric metal included in the waste with solidifying materials. In order to suppress the reaction of the amphoteric metal with the solidifying materials, any one or arbitrary plurality of the following three means are provided in the solidifying materials; (1) A means for forming protection film on surface of the amphoteric metal, (2) A means for enhancing hydration reaction of cement, (3) A means for reducing basicity of the solidifying materials. In accordance with the present invention, a preferable solidified body can be obtained by a simple and easy method which does not necessitate separation and pre-treatment of the waste.