DECEMBER
9A
1947
FRACTIONATING STILL
Tor the first time, close fractionation under J-{igh Yacuum, comparable to the performance of packed col umns, is possible.
evolved without introduction of the usual packed column with high imped ance to gas or vapor flow. The tremendous industrial potentialities of this new processing tool can only be realized when research chemists have had an opportunity to apply it to their problems. A laboratory unit is now available for research purposes. Inquiries for license arrangements for commercial operation are invited. For further details, please write National Research Corporation, Cambridge 42, Massachusetts. HIGH V A C U U M
ΝAΤΙΟΝA
FOR
INDUSTRY
SEARCH CORPORATION acuum ENGINEERING DIVISION
