Chemistry of hydrocarbon compounds – Purification – separation – or recovery – By addition of extraneous agent – e.g. – solvent – etc.
Patent
1994-02-14
1995-08-29
McFarlane, Anthony
Chemistry of hydrocarbon compounds
Purification, separation, or recovery
By addition of extraneous agent, e.g., solvent, etc.
585848, 585849, 585850, 585855, 423219, C07C 7148, C07C 7152, C01B 1300
Patent
active
054462320
ABSTRACT:
Disclosed is a method and apparatus for removing oxygen from hydrogen, hydrocarbon, or halogenated hydrocarbon gas which contains about 0.01 to about 10 mole % oxygen. The oxygen removal is accomplished by contacting the gas with a Hopcalite catalyst at a temperature of about 100.degree. to about 300.degree. C. The invention can be part of a process for making 1,2-dichloroethane where, in a first reaction, ethane and chlorine are reacted to make ethylene and hydrogen chloride and, in a second reaction, the ethylene and hydrogen chloride are reacted with excess oxygen to make the 1,2-dichloroethane. The unreacted ethane can be recycled to the first step after the method of the invention is applied to remove the oxygen.
REFERENCES:
patent: 2351167 (1944-06-01), Ware
patent: 4034062 (1977-07-01), Krueger
patent: 4299800 (1981-11-01), Nishikawa et al.
patent: 5157204 (1992-10-01), Brown et al.
Chen Hang-Chang B.
Olsen Deborah J.
Fuerle Richard D.
Jones Wayne A.
McFarlane Anthony
Occidental Chemical Corporation
Phan Nhat D.
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