(under the class definition) Processes in which the feedstock to the distillation process is a vegetable or animal material and which include either (1) use of a catalyst with distilland during the thermolysis, or (2) a chemical treatment of a volatile component, i.e., a distillate or a fixed gas obtained in the thermolysis, to convert or maintain a volatile component in a desired chemical form.
(1) Note. Materials such as municipal wastes, garbage, sewage sludge, cellulosics, etc., distillands suitable for placement in this subclass.
(2) Note. The chemical treatment must include a chemical change, but it need not be a change in the product desired.
(3) Note. Mere removal of water of hydration or mere conversion of a material to a carbon oxide (combustion) is not sufficient chemical treatment for this subclass.
(4) Note. Mere recycle of products of the process, water, carbon oxides, hydrogen, etc., without a recitation of a specific chemical reaction due to the recycle is not sufficient for placement of a patent in this subclass.
(5) Note. The catalyst must be more than the mere char product of the process.
SEE OR SEARCH THIS CLASS, SUBCLASS: 25, for processes in which nonwood, nonmineral material is used as a distilland.
45, for a collection of patents concerned with special procedures whereby a distillate of special characteristics may be obtained from a given distilland.
SEE OR SEARCH CLASS
585, Chemistry of Hydrocarbon Compounds,
240+, for the production of a hydrocarbon mixture from refuse or vegetation.
