Synthesis of Processes for Recovering Metals from Incineration Fly Ash of Municipal Solid Wastes.
-
- Kim Jong-Hwa
- Department of Chemical Engineering, Osaka University College of Engineering, Changwon National University
-
- Yang Jong-Gyu
- Department of Chemical Engineering, Osaka University College of Engineering, Changwon National University
-
- Kunugita Eiichi
- Department of Chemical Engineering, Osaka University College of Engineering, Changwon National University
Bibliographic Information
- Other Title
-
- 都市ゴミ焼却炉飛灰から金属類を分離するプロセス
- トシ ゴミ ショウキャクロ ヒカイ カラ キンゾクルイ オ ブンリスル プロセ
Search this article
Abstract
The purpose of this study is development of separation processes by which metal elements worth using for raw materials of chemicals (for examples Cd, Cu, Mn, Pb, Zn and so on) are recovered from incineration fly ash of municipal solid wastes.<BR>Candidate Process (D) evolved out of Candidate Process (C), which was synthesized with a computer-aided procedure. The process consists of addition of Na2S to nitric solution as leachate of the fly ash for forming precipitate of sulfides, and consecutive dissolution of sulfides with dil-H2SO4, conc-H2SO4 and HNO3 to separate Mn2+, Zn2+ and Cd2+ from each other and to leave CuS insoluble in the acids. For further purification of metals, Candidate Process (D) was modified into Candidate Process (E), in which solvent extraction of Zn2+ from Mn2+ and Cd2+ fractions with bis (2-ethylhexyl) phosphoric acid (D 2 EHPA), and addition of NH2aq or (NH4) 2CO3 to form [Cu (NH3) 4] 2+ and to leave PbS insoluble were adopted.
Journal
-
- KAGAKU KOGAKU RONBUNSHU
-
KAGAKU KOGAKU RONBUNSHU 23 (1), 47-52, 1997
The Society of Chemical Engineers, Japan
- Tweet
Keywords
Details 詳細情報について
-
- CRID
- 1390001204508552064
-
- NII Article ID
- 10002766959
-
- NII Book ID
- AN00037234
-
- COI
- 1:CAS:528:DyaK2sXmtlCrtg%3D%3D
-
- ISSN
- 13499203
- 0386216X
-
- NDL BIB ID
- 4119085
-
- Text Lang
- ja
-
- Data Source
-
- JaLC
- NDL
- Crossref
- CiNii Articles
-
- Abstract License Flag
- Disallowed