.~ With prevention of corrosion or erosion in system
DEFINITION
Classification: 208/47
(under subclass 46) Processes including some step to prevent or reduce corrosion or erosion of the apparatus employed in the process.
(1) Note. This subclass contains, for example, those processes involving introduction of agents that inhibit or prevent corrosion or erosion as well as the removal of materials that tend to cause such corrosion or erosion during the conversion of the oil, when claimed in combination with conversion or conversion operations which are carried out in such manner as to avoid erosion or corrosion of the apparatus.
SEE OR SEARCH THIS CLASS, SUBCLASS:
85+, for mineral oil conversion processes combined with preliminary treatments of the feed which do not reduce corrosion or erosion of the apparatus.
177+, for processes of removing nonhydrocarbons from mineral oils.
347+, and particularly subclass 348 for processes of preventing corrosion during a nonconversion distillation of a mineral oil.
SEE OR SEARCH CLASS 106, Compositions: Coating or Plastic,
14.05, for anti-corrosion coating compositions.
203, Distillation: Processes, Separatory,
7, for a distillation process in which a substance is added to inhibit scale formation or to prevent corrosion.
252, Compositions,
387+, for anticorrosion compositions.
422, Chemical Apparatus and Process Disinfecting, Deodorizing, Preserving, or Sterilizing,
7+, for process of maintaining an environment nondestructive to metal.
