SELECTIVE SEPARATION PROCESSES

摘要

This invention relates to a separation process comprising (i) introducing a vapor phase mixture into a condensing apparatus, said vapor phase mixture comprising at least one desirable component and at least one undesirable component; (ii) controlling the temperature in the condensing apparatus utilizing a heat-transfer gas; and (iii) operating the condensing apparatus at a temperature and a pressure sufficient to selectively condense at least a portion of said vapor phase mixture and thereby yield a recovered content containing said at least one desirable component. The separation process is useful in semiconductor applications such as recovery of unreacted organometallic compound precursors in chemical vapor deposition or atomic layer deposition processes.