Title:
METHOD OF REMOVING Sn AND METHOD OF MANUFACTURING Pb
Document Type and Number:
Japanese Patent JP2020147813
Kind Code:
A
Abstract:
To provide a removal method of Sn and a manufacturing method of Pb, which can suppress an amount of impurity mixing in an Sn scum.SOLUTION: A removal method of Sn comprises, in Harris furnace, the steps of: soda treatment of performing a soda treatment to a molten crude Pb metal and; removal for removing the Sn scum by scooping with a second network having a smaller mesh than a first network, after scooping the Sn scum occurring in the soda treatment with a first network having a larger mesh.SELECTED DRAWING: Figure 2
Inventors:
TAKEI TAKUMA
ONO EIKI
USUI SHOJIRO
NUMATA MAKOTO
ONO EIKI
USUI SHOJIRO
NUMATA MAKOTO
Application Number:
JP2019047633A
Publication Date:
September 17, 2020
Filing Date:
March 14, 2019
Export Citation:
Assignee:
JX NIPPON MINING & METALS CORP
International Classes:
C22B13/02; C22B7/04; C22B9/10; C22B13/06; C25C3/34
Domestic Patent References:
| JP2011214021A | 2011-10-27 | |||
| JP2013234356A | 2013-11-21 | |||
| JP2018059210A | 2018-04-12 | |||
| JP2019157240A | 2019-09-19 |
Attorney, Agent or Firm:
Shuhei Katayama