US PATENT SUBCLASS 44 / 624
.~.~.~ Using liquid aqueous material

Current as of: June, 1999
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44 /   HD   FUEL AND RELATED COMPOSITIONS

620  DF  COAL TREATING PROCESS OR PRODUCT THEREOF {1}
621  DF  .~ Removal of undesirable {3}
622  DF  .~.~ Sulfur {2}
624.~.~.~ Using liquid aqueous material {1}
625  DF  .~.~.~.~> And treatment with gas

DEFINITION

Classification: 44/624

Using liquid aqueous material:

(under subclass 622) Subject matter wherein the process includes the use of a liquid material and requires the presence of liquid water.

SEE OR SEARCH THIS CLASS, SUBCLASS:

623, for a process wherein the liquid material contains a compound of a transition metal.