C - Chemistry – Metallurgy – 22 – F
Patent
C - Chemistry, Metallurgy
22
F
C22F 1/02 (2006.01) B22D 21/00 (2006.01) C21D 1/74 (2006.01) C22B 9/00 (2006.01) C22B 9/05 (2006.01) C22B 21/06 (2006.01)
Patent
CA 2370530
An improved method of processing a nonferrous metal and alloys of said metal using a blanketing gas having a global warming potential is provided. The improvement involves reducing the global warming potential of the blanketing gas by blanketing the nonferrous metal and alloys with a gaseous mixture including at least one compound selected from the group consisting of COF2, CF3COF, (CF3)2CO, F3COF, F2C(OF)2, SO2F2, NF3, SO2CIF, SOF2, SOF4, NOF, F2 and SF4.
Heffron James Francis
Hobbs John Peter
Woytek Andrew Joseph
Zurecki Zbigniew
Air Products And Chemicals Inc.
Mcfadden Fincham
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