(under subclass 921) Subject matter wherein the apparatus is a device, part of a synthesis reactor, which serves to change the condition of a fluid in an active way, such as an impeller, or in a passive way, such as a perforated plate.
SEE OR SEARCH THIS CLASS, SUBCLASS:
720, for this subject matter used in connection with alkylation to synthesize a saturated compound.
SEE OR SEARCH CLASS
137, Fluid Handling, appropriate subclasses for methods and apparatus in general for mixing and other manipulation of fluids.