(under subclass 95) Processes wherein the treatment subsequent to conversion includes the removal of nonhydrocarbon natural occurring material (impurity) from the mineral oil, or the conversion thereof to an inactive or unobjectionable material.
(1) Note. Processes which include a single subsequent treatment defused by name only, or include the separation and removal of the catalyst or inert material employed in the process as the only subsequent treatment are not included in this or indented subclass.
SEE OR SEARCH THIS CLASS, SUBCLASS:
177+, for processes for the removal of or inactivation of
nonhydrocarbon impurities occurring in mineral oil.
