Air Products and Chemicals, Inc.

James Francis Heffron

John Peter Hobbs

Zbigniew Zurecki

Andrew Joseph Woytek

Charles E Baukal, Jr

Charles Edward Baukal

Vladimir Yliy Gershtein

Robert C Best

Prince Boyd Eleazer, Iii

Edward Robert Bazarian

Prince Boyd Eleazer

An improved method of processing both primary and secondary nonferrous metal and alloys of said metals using a refining gas is provided. The improvement involves refining said non-ferrous metal and alloys with a gaseous mixture including at least one compound selected from the group consisting of ClF , ClF, COF , F COF, CF (OF) , SO F , NF , SO ClF, SOF , SOF , NOF, F and SF .

Refining nonferrous metals and alloys with gases having reduced global warming potential

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 COF , CF COF, (CF ) CO, F COF, F C(OF) , SO F , NF , SO ClF, SOF , SOF , NOF, F and SF .

Blanketing metals and alloys at elevated temperatures with gases having reduced global warming potential

An improved method of processing a molten non-ferrous metal and alloys of the 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 molten non-ferrous metal and alloys with a gaseous mixture including at least one compound selected from the group consisting of SO F , NF , SO CLF, SOF , and NOF.

Blanketing molten nonferrous metals and alloys with gases having reduced global warming potential

Method and apparatus for reducing NOx production during air-oxygen-fuel combustion by providing a central core of fuel surrounded by a sheath of oxygen at a combustion end of an air-oxygen-fuel burner. Diametrically opposed air passages are provided on either side of the oxygen sheath to permit entrainment of furnace gases into a flame zone created by primary combustion of fuel and oxygen. Oxygen can be introduced into each air passage to enhance combustion with low NOx emissions.

Method and apparatus for reducing NOx production during air-oxygen-fuel

Oxy-fuel combustion combined with air-fuel combustion to increase productivity of the combustion process and reduce nitrogen oxides in the products of combustion by maintaining fuel rich oxy-fuel combustion while combusting the air-fuel as close as possible at stoichiometric conditions.

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Orwigsburg, PA, United States of America

James Francis Heffron