(under subclass 142) Processes wherein hydrogenation takes place in the presence of catalytic material.
(1) Note. To be classified in this or indented subclasses the process must include (a) the use of a specifically identified solid catalytic material, or (b) the treatment of a specific mineral oil identified by some definite physical or chemical property thereof, such as boiling range, specific gravity, etc. Processes of this latter type are specifically provided for in subclasses 144+ indented hereunder. Processes excluded by this note are classified below in subclasses 146+ which provides for broadly claimed processes of contacting
