.~ Including step of adding catalyst or reacting material {7}
31
.~.~ Oxidizing material
DEFINITION
Classification: 203/31
(under subclass 29) Processes, directed to adding an
oxidizing substance.
(1) Note. This subclass is limited to incorporating a substance which is stated to oxidize a part of the material being treated or is a well-known oxidizing agent.
(2) Note. Nitric acid is classified here and crossed to subclass 34.
SEE OR SEARCH CLASS
260, Chemistry of Carbon Compounds, appropriate subclass for a process of purification by an oxidative treatment of a particular carbon compound and
702, for a general process of oxidation of impurities. See (1) Note under subclass 702. 585, Chemistry of Hydrocarbon Compounds,
833+, for a purification process involving the addition of an oxidizing agent to a hydrocarbon feedstock.
