US PATENT SUBCLASS 208 / 146
.~ Solids contacting and mixing

Current as of: June, 1999
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208 /   HD   MINERAL OILS: PROCESSES AND PRODUCTS

46  DF  CHEMICAL CONVERSION OF HYDROCARBONS {11}
146.~ Solids contacting and mixing {8}
147  DF  .~.~> Separate contiguous, dissimilar function, contacting zones
148  DF  .~.~> Combined gravitating bed and suspension zones
149  DF  .~.~> Solids of dissimilar composition
150  DF  .~.~> Purging {1}
152  DF  .~.~> Solids replenishment, or selective discard
153  DF  .~.~> Suspension system {7}
165  DF  .~.~> Gravitating compact beds {7}
176  DF  .~.~> Solids moving processes

DEFINITION

Classification: 208/146

(under subclass 46) Processes which are directed to contacting fluid, in either the liquid or vapor state, and which may include, in addition to the mineral oil treated a solids regenerating or rehabilitating fluid with solids, and which are neither directed to the treatment of a specifically identified mineral oil nor include the use of specifically identified solids.

(1) Note. Process of (a) treating a mineral oil identified

by some definite physical or chemical property such as the boiling range, specific gravity, etc., or (b) using a specifically identified catalyst or heat carrier, are classified in a preceding subclass providing for the process involved. Processes classifiable in this or indented subclass may identify the process as hydrocracking, reforming, etc., or be directed to the treatment of a naphtha, feed boiling within the "gas oil range" (without giving the temperature range) or specify the use of a catalyst of a particular particle size.

(2) Note. Processes of conversion of mineral oil which involve a plurality of named conversion steps (of the same type or of a different type) or which are in combination with a preliminary treatment of the feed oil or a subsequent treatment of the converted products are classified in the preceding subclass providing for the combination, (subclasses 49 to 105) even though the conversion treatment is only broadly defined.

(3) Note. In this and indented subclasses is intended to be collected processes of converting mineral oil which are distinguished primarily by the manipulative procedure in which solids (catalysts or inert solids) are contacted with a fluid, in the liquid or gaseous state which may be either the mineral oil to be converted or a solids regeneration medium (e.g., oxygen or air).

SEE OR SEARCH THIS CLASS, SUBCLASS:

49+, for processes in which a mineral oil is subjected to a plurality of successive conversions (see (2) Note). 78+, for processes including plural parallel conversions (see (2) Note).

85+, for processes including a treatment of mineral oil prior to conversion (see (2) Note).

95+, for processes including a treatment of the converted products (see 2) Note).

SEE OR SEARCH CLASS

34, Drying and Gas or Vapor Contact With Solids, appropriate subclasses, which is the generic class providing for processes and apparatus for contacting solids with either gases or vapors.

134, Cleaning and Liquid Contact With Solids, appropriate subclass, which is the generic class providing for processes and apparatus for contacting solids with liquids.

165, Heat Exchange,

104.11+, for a heat exchange system in which an intermediate fluent receives and discharges heat, and subclasses 4+ for a

heat exchanger having a solid heat storage mass.

406, Conveyors: Fluid Current, appropriate subclasses, for processes and apparatus for conveying solid materials by means of or with the assistance of a forced propelling fluid current.

414, Material or Article Handling, for processes or apparatus for handling materials including manipulative charging and discharging of solids, per se.

422, Chemical Apparatus and Process Disinfecting, Deodorizing, Preserving, or Sterilizing, especially 190+, and 211+ for apparatus for treating a material (including mineral oil) with a catalyst.

502, Catalyst, Solid Sorbent, or Support Therefor: Product or Process of Making, for a composition comprising a catalyst or sorbent, per se, and see especially

12, and 20+ for a process of regenerating such composition. Combinations of treating mineral oil in the presence of solids with regeneration of the solids employed are classified in this class (208) and in this or an indented subclass when the mineral oil conversion is claimed broadly.