US PATENT SUBCLASS 562 / 414
.~.~.~.~.~.~.~ With recycle or recovery of reaction component

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


562 /   HD   ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES

*  DD  ORGANIC COMPOUNDS (Class 532, Subclass 1) {41}
400  DF  .~ Carboxylic acids and salts thereof {14}
405  DF  .~.~ Aromatic {13}
407  DF  .~.~.~ Formation of carboxyl group by oxidation {1}
408  DF  .~.~.~.~ Of aromatic compound {3}
409  DF  .~.~.~.~.~ Alkyl side chain oxidized {3}
412  DF  .~.~.~.~.~.~ Air, oxygen, or ozone oxidant {5}
414.~.~.~.~.~.~.~ With recycle or recovery of reaction component

DEFINITION

Classification: 562/414

With recycle or recovery of reaction component:

(under subclass 412) Processes wherein components of the product of oxidation may be separated, further treated, and either recycled to the reaction chamber or recovered.

(1) Note. This subclass includes processes which claim a

significant recovery step to produce the desired carboxylic acid or are directed to recovery and recycling of solvents, catalysts, or unoxidized or incompletely oxidized starting materials.