Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
NEUTRALIZATION TREATMENT METHOD AND NEUTRALIZING AGENT
Document Type and Number:
WIPO Patent Application WO/2014/084129
Kind Code:
A1
Abstract:
Provided is a neutralization treatment method, whereby, in a neutralization treatment that is carried out for discharging a process solution generated in a metal refining process to the outside of a system, it becomes possible to reduce the amount of a neutralizing agent to be used, such as slaked lime, and to carry out the neutralization treatment with high efficiency. The neutralization treatment is carried out using, as a neutralizing agent for a solution discharged in the metal refining process, boiler ash which is produced after the combustion of a fluidized-bed boiler and which is produced by burning a sulfur content derived from coal, which is a fuel, while adding lime stone to the sulfur content and desulfurizing the sulfur content.

Inventors:
NAKAI TAKAYUKI (JP)
MATSUBARA SATOSHI (JP)
NAKAI OSAMU (JP)
NAKASHIMA TAKESHI (JP)
Application Number:
PCT/JP2013/081470
Publication Date:
June 05, 2014
Filing Date:
November 22, 2013
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
SUMITOMO METAL MINING CO (JP)
International Classes:
C22B3/44; C02F1/66; C22B23/00
Foreign References:
JP2010095788A2010-04-30
JP2002507632A2002-03-12
JPS58150417A1983-09-07
JPS5584404U1980-06-11
JPH06205931A1994-07-26
JPH1026334A1998-01-27
JP2009095698A2009-05-07
Other References:
See also references of EP 2927332A4
Attorney, Agent or Firm:
KOIKE, Akira et al. (JP)
Akira Koike (JP)
Download PDF: