| 摘要 |
<p>1455050 Metal halides; removal of acetylene, carbon monoxide; from gases TENNECO CHEMICALS Inc 3 Sept 1974 [17 Sept 1973] 38493/74 Heading C1A Group Ib metal halides are recovered from a solution of M I M I X n .Ar (wherein M I is a Group Ib metal, preferably copper (I), M II is a Group IIIa metal, preferably aluminium, X is a halogen, preferably chlorine, n is equal to the sum of the valencies of M I and M II , and Ar is a monocyclic aromatic hydrocarbon having 6-12, and preferably 6-9, carbon atoms) in an aromatic solvent by contacting with anhydrous ammonia, whereupon solid M I halide is precipitated, and separating the solid M I halide. The recovery is suitably applied to solutions which have been used in the removal of, e.g. acetylene and carbon monoxide from gases and from which the absorbed gases have been stripped; in this case, the Group Ib metal halide may suitably be used to prepare a fresh sorbent solution.</p> |
