(under subclass 10) Processes in which the preheated material is molten metal.
SEE OR SEARCH CLASS
34, Drying and Gas or Vapor Contact With Solids,
329+, for a process including contacting the material being treated with a liquid metal, and see notes thereunder for related fields of search.
48, Gas: Heating and Illuminating,
92, for a retort containing heated molten metal into which material to be gasified is injected.
165, Heat Exchange, 104.11+, for apparatus in which a retained body of fluent material forming a part of the apparatus, acts as a heat storer or heat carrier for the apparatus.
