US PATENT SUBCLASS 208 / 134
.~.~ Catalytic

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


208 /   HD   MINERAL OILS: PROCESSES AND PRODUCTS

46  DF  CHEMICAL CONVERSION OF HYDROCARBONS {11}
133  DF  .~ Reforming (includes dehydrogenation, isomerization, cyclization, aromatization, alkylation, dealkylation reactions) {1}
134.~.~ Catalytic {2}
135  DF  .~.~.~> With Group III metal or metal oxide containing catalyst {2}
141  DF  .~.~.~> Feed of specific composition

DEFINITION

Classification: 208/134

(under subclass 133) Processes wherein reforming takes place in the presence of catalytic material.

(1) Note. To be classified in this or indented subclasses the process must include (a) the treatment of a specific mineral oil identified by some definite physical or chemical property thereof, such as boiling range, specific gravity, etc., or (b) the use of a specifically identified catalytic material. Merely identifying the feed as a naphtha, as boiling within the gas-oil range or the use of a catalyst of a particular size is not itself sufficient to cause classification in this or indented subclass. Processes excluded by this note are classified below in subclasses 146+ which provides for mineral oil processes including the contacting of the oil with solids.

SEE OR SEARCH THIS CLASS, SUBCLASS:

146+, for manipulative processes of contacting mineral oils with catalysts (see (1) Note).