| 摘要 |
1,238,669. Mixing flowing streams; liquid/ liquid contact. UPJOHN CO. 18 Sept., 1968 [12 March, 1968], No. 44279/68. Headings B1C and B1F. In the production of isocyanates with reduction of secondary reactions, liquid phosgene from 3 is accelerated by the restriction of the flow path at 23 and meets a stream of liquid amine from 10 as it is injected, similarly accelarated from frusto-conical passage 26. |
