"BLANKETING METALS AND ALLOYS AT ELEVATED TEMPERATURES WITH GASES HAVING REDUCED GLOBAL WARMING POTENTIAL"
Application 71/MAS/2002 published 2007-07-27, filed 2002-01-30
5 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, 10 S02F2, NF3, SO2CIF, SOF2, SOF4, NOF, F2 and SF4.
Applicant
1)AIR PRODUCTS AND CHEMICALS INC
:7201 HAMIL TON BOULEVARD ALLENTOWN PA 18195 U.S.A.
Inventor
1)GH 2)JAMES FRANCIS HEFFRON 3)ANDERW JOSEPH WOYTEK 4)ZBIGNIEW ZUURECKI
International Info
Classification: C 22B 9/00