.~ Including step of adding catalyst or reacting material {7}
32
.~.~ Reducing material
DEFINITION
Classification: 203/32
(under subclass 29) Processes directed to adding a reducing substance.
(1) Note. This subclass is limited to incorporating a substance which is stated to reduce a part of the material being treated or is a well known reducing agent, e.g., hydrogen.
SEE OR SEARCH CLASS
260, Chemistry of Carbon Compounds, appropriate subclasses for a process of purifying by a reductive treatment, a particular carbon compound and
701, for a general process of reductive treatment.
585, Chemistry of Hydrocarbon Compounds,
258+, and 841 for hydrogenative purification of hydrocarbons.
