Title:
【発明の名称】廃棄物の加熱処理におけるガス洗浄段階からの金属含有沈殿物の処理方法
Document Type and Number:
Japanese Patent JP2660167
Kind Code:
B2
Abstract:
The method consists of the following steps: (a) the precipitations are subjected to a wet wash; (b) moisture and volatile metals (which later are recovered via condensation) are separated during a subsequent low-temperature drying process; (c) the metal sump thus treated (possibly after intermediate storage) is dissolved by known methods of hydrometallurgy so that, selectively, by means of ion exchange, electrolysis and/or metal ion extraction it can be prepared for production of pure metals or metal compounds; and (d) all gases produced during the entire preparation process - after volatile metal constituents are removed from them - are fed to a high-temperature stage for detoxication and disposal.
Inventors:
GYUNTAA HAA KITSUSU
Application Number:
JP6556295A
Publication Date:
October 08, 1997
Filing Date:
March 24, 1995
Export Citation:
Assignee:
TERUMOZEREKUTO AG
International Classes:
B01D53/34; B01D53/14; B01D53/64; B01D53/73; B09B5/00; C02F11/00; C22B7/00; C22B7/02; C22B43/00; (IPC1-7): C02F11/00; C02F11/00; B01D53/64; B09B5/00; C22B7/00
Domestic Patent References:
| JP4831174A | ||||
| JP605221A | ||||
| JP6328484A | ||||
| JP5722891B2 |
Attorney, Agent or Firm:
Kyozo Yuasa (6 people outside)