(under subclass 23) Processes which include chemically forming a compound containing the (SO4[supscrpt]2-[end supscrpt]) sulfate radical.
SEE OR SEARCH THIS CLASS, SUBCLASS:
36, for a process in which a similar sulfate compound is formed, but in which also a substance is caused to come out of solution in a liquid or slurry and in which leaching is effected.
41, in which a similar sulfate compound is formed and in which leaching effected.
SEE OR SEARCH CLASS
75, Specialized Metallurgical Processes, Compositions for Use Therein, Consolidated Metal Powder Compositions, and Loose Metal Particulate Mixtures,
110, and 115+ for a process of obtaining a pure elemental metal and which involves the formation of a sulfate compound.
