HEAVY METAL ELUTION REDUCING MATERIAL - SUMITOMO OSAKA CEMENT CO LTD

Title:

HEAVY METAL ELUTION REDUCING MATERIAL

Document Type and Number:

Japanese Patent JP2013230447

Kind Code:

A

Abstract:

To provide a heavy metal elution reducing material that can reduce the elution of heavy metal while permitting simultaneously easy determination on whether the heavy metal elution reducing material is uniformly mixed in soil after mixed in contaminated soil.

A heavy metal elution reducing material contains a light-burned product obtained by lightly burning a mineral containing magnesium carbonate (MgCO₃) and calcium carbonate (CaCO₃) as main components, the light-burned product containing MgCO₃, CaCO₃, and MgC_xO_y (wherein 0<x≤1 and 0<y<3 are satisfied) produced by decarbonating the MgCO₃. The heavy metal elution reducing material further contains at least one element selected from a group consisting of germanium, silver, palladium, bromine and gallium.

Inventors:

KUNINISHI TAKESHI
MATSUO TORU
KIKUCHI SADATO

Application Number:

JP2012104784A

Publication Date:

November 14, 2013

Filing Date:

May 01, 2012

Export Citation:

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Assignee:

SUMITOMO OSAKA CEMENT CO LTD

International Classes:

B09C1/02; B09C1/08; C01F5/06; G01N23/227

Domestic Patent References:

JP2010214254A	2010-09-30
JP2005288378A	2005-10-20
JP2005523990A	2005-08-11
JP2012050911A	2012-03-15
JP2001527465A	2001-12-25
JP2000502982A	2000-03-14
JP2011079919A	2011-04-21

Foreign References:

US20090118564A1

2009-05-07

Attorney, Agent or Firm:

Noboru Fujimoto
Hiroaki Nakatani

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