| 摘要 |
1,156,713. Oxazole separation. B.P. CHEMICALS (U.K.) Ltd. 18 Aug., 1967 [15 Sept., 1966; 12 Jan., 1967], Nos. 41179/66 and 1721/67. Heading C2C. A process for the separation and recovery of oxazole from aqueous solution containing it together with acetonitrile comprises treating the solution with an inorganic salt or salts selected from mercuric chloride, cadmium chloride, cadmium bromide, cupric chloride and cupric thiocyanate, to effect precipitation of an oxazole inorganic salt complex, separating the precipitated solid, treating the separated solid to effect decomposition to produce oxazole and recovering the oxazole. The complex may be decomposed by heating or with a high boiling diluent, e.g. liquid paraffin or water. Examples are furnished. |
