US PATENT SUBCLASS 588 / 215
.~ Chalcogen containing (O, S, Se, or Te)

Current as of: June, 1999
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588 /   HD   HAZARDOUS OR TOXIC WASTE DESTRUCTION OR CONTAINMENT

205  DF  ORGANIC SUBSTANCE DESTROYED {8}
215.~ Chalcogen containing (O, S, Se, or Te) {2}
216  DF  .~.~> Heating or vacuum used to drive off or produce a volatile substance {1}
218  DF  .~.~> Reacting with chemical agents {1}

DEFINITION

Classification: 588/215

Chalcogen containing (O, S, Se, or Te):

(under subclass 205) Process wherein a chalcogen (O, S, Se, or Te) substance containing hazardous or toxic waste is destroyed or converted into an environmentally safe substance.

SEE OR SEARCH THIS CLASS, SUBCLASS:

239, for the destruction of inorganic substances containing chalcogen (O, S, Se, or Te) in hazardous or toxic waste.

SEE OR SEARCH CLASS

208, Mineral Oils: Processes and Products,

208+, for sulfur removal from mineral oils.

423, Chemistry of Inorganic Compounds, appropriate subclasses for the production of the desired inorganic substance or product,

508+, for substances or products containing selenium or tellurium, subclasses 511+ for substances or products containing sulfur, and subclasses 579+ for substances or products containing oxygen. 532, Organic Compounds, appropriate subclasses for the chalcogen (O, S, Se, or Te) containing compounds.

585, Chemistry of Hydrocarbon Compounds, for processes employing chalcogen (O, S, Se, or Te) containing compounds in

the manufacture of hydrocarbons containing the chalcogen.

240+, for the production of a hydrocarbon mixture from refuse or vegetation.