Title:
BLANKETING MOLTEN NON-FERROUS METAL AND ALLOY WITH GASES HAVING REDUCED GLOBAL WARMING POTENTIAL
Document Type and Number:
Japanese Patent JP3655553
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide an improved method for treating a molten non-ferrous metal and alloys of the metal using a blanketing gas having a global warming potential.
SOLUTION: This improvement involves reducing the global warming potential of blanketing gas by blanketing the molten non-ferrous metal and alloys thereof with a gaseous mixture containing at least one compound selected from the groups consisting of SO2F2, NF3, SO2ClF, SOF2, SOF4, NOF and SF4.
Inventors:
John Peter Hobbs
James Francis Heflon
Andrew Joseph Wotech
James Francis Heflon
Andrew Joseph Wotech
Application Number:
JP2001030885A
Publication Date:
June 02, 2005
Filing Date:
February 07, 2001
Export Citation:
Assignee:
AIR PRODUCTS AND CHEMICALS INCORPORATED
International Classes:
B22D45/00; B22D11/04; C22B9/00; C22B9/16; C22B21/06; C22B26/22; (IPC1-7): C22B9/16; B22D45/00
Domestic Patent References:
| JP8143985A | ||||
| JP63269427A | ||||
| JP3231407A |
Foreign References:
| US1972317 |
Attorney, Agent or Firm:
Takashi Ishida
Jun Tsuruta
Goji Tasaki
Masaya Nishiyama
Higuchi Souji
Jun Tsuruta
Goji Tasaki
Masaya Nishiyama
Higuchi Souji