US PATENT SUBCLASS 554 / 141
.~.~.~ Catalytic hydrogenation


Current as of: June, 1999
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554 /   HD   ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES

*  DD  ORGANIC COMPOUNDS (Class 532, Subclass 1) {1}
1  DF  .~ Fatty compounds having an acid moiety which contains the carbonyl of a carboxylic acid, salt, ester, or amide group bonded directly to one end of an acyclic chain of at least seven (7) uninterrupted carbons, wherein any additional carbonyl in the acid moiety is (1) part of an aldehyde or ketone group, (2) bonded directly to a noncarbon atom which is between the additional carbonyl and the chain, or (3) attached indirectly to the chain via ionic bonding {23}
124  DF  .~.~ Processes of forming the compound {13}
141.~.~.~ Catalytic hydrogenation {6}
142  DF  .~.~.~.~> Including esterification or inter-esterification (e.g., prior to, simultaneously with, or after hydrogenation, etc.)
143  DF  .~.~.~.~> Conversion of a functional group in the course of hydrogenation (e.g., hydrogenolysis, etc.)
144  DF  .~.~.~.~> Plural hydrogenation steps or continuous hydrogenation process
145  DF  .~.~.~.~> Selective hydrogenation (e.g., of polyunsaturated to monounsaturated, of acetylenic to ethylenic compound, etc.)
146  DF  .~.~.~.~> Plural heavy metal containing materials utilized
147  DF  .~.~.~.~> Additional treating agent utilized (e.g., as catalyst carrier or promoter, oil deodorizer, oil solvent, pretreatment agent, oil filtering aid, etc.)


DEFINITION

Classification: 554/141

(under subclass 124) Processes wherein the fatty compound is prepared by the addition of hydrogen in the presence of a catalyst.

(1) Note. Included herein are processes utilizing sodium borohydride, nascent hydrogen, etc., as a reducing agent.