Title:
金属酸洗い浴をリサイクルするための方法および装置
Document Type and Number:
Japanese Patent JP4579682
Kind Code:
B2
Abstract:
The invention relates to a method for recycling metal pickling baths, including rinsing baths and air washers. Said method is characterized in that a) before the recycling process, free acids in the liquid waste flows to be treated are converted into a metallic salt form, b) water is separated from the largely acid-free metallic salt solution produced in order to obtain a concentrated metal salt solution, and c) the concentrated metal salt solution is subjected to a thermal method in order to obtain metal oxides and free acids. The invention also relates to a corresponding device. The inventive method and device enable the degree of acid recovery and also the production of metal oxides to be significantly increased, with lower operating costs.
Inventors:
Klein, Kraos
Application Number:
JP2004520551A
Publication Date:
November 10, 2010
Filing Date:
July 09, 2003
Export Citation:
Assignee:
Tsemuie Woufauker Gesellschaft Mito Beschlenktel Haftung
International Classes:
C23G1/36; C02F1/02; C02F1/04; C02F1/58; C02F9/00
Domestic Patent References:
| JP9188502A | ||||
| JP5009766A | ||||
| JP9503820A | ||||
| JP4231487A | ||||
| JP6057466A |
Attorney, Agent or Firm:
Shuji Iwamiya