Title:
重金属不溶化材及び重金属不溶化方法
Document Type and Number:
Japanese Patent JP5648917
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a heavy metal-insolubilizing material and a heavy metal-insolubilizing method, which have a high effect of insolubilizing heavy metals even under a high alkali condition, need neither treatment nor pretreatment of a large amount of sludge, and easily carry out the insolubilizing treatment.SOLUTION: The heavy metal-insolubilizing material contains at least one compound selected from the group consisting of hypophosphorous acid, hypophosphite salts, phosphorous acid and phosphite salts. The heavy metal-insolubilizing method is also provided.
Inventors:
小出 貴夫
Application Number:
JP2011053102A
Publication Date:
January 07, 2015
Filing Date:
March 10, 2011
Export Citation:
Assignee:
住友大阪セメント株式会社
International Classes:
C09K3/00; A62D3/33; B09C1/02; B09C1/08; C02F1/28; C02F1/62; C02F1/70; C09K17/02; C09K17/06; C09K17/12
Attorney, Agent or Firm:
Noboru Fujimoto
Hiroaki Nakatani
Hill Yuichi
Hiroaki Nakatani
Hill Yuichi