| 摘要 |
<p>1511315 Thin layer evaporator BAYER AG 7 Aug 1975 [9 Aug 1974] 33011/75 Heading BIB A thin-layer evaporator comprises a spray ring 6 for the introduction of solvent to dissolve sump product, and, above this, a further spray ring. 4 for the introduction of vapour, e.g. steam, to form a vapour lock to isolate the distillate vapour from the solvent.</p> |
