US PATENT SUBCLASS 554 / 12
.~.~.~.~ Organic solvent extraction


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}
8  DF  .~.~ Extraction directly from animal or plant source material (e.g., recovery from garbage, fish offal, slaughter house waste, whole fish, olive fruit, etc.) {6}
9  DF  .~.~.~ Legume, nut, or seed source material (e.g., peanut, soya bean, rice bran, etc.) {4}
12.~.~.~.~ Organic solvent extraction {3}
13  DF  .~.~.~.~.~> Halogen or oxygen in the solvent (e.g., carbon tetrachloride, ethanol, etc.) {1}
15  DF  .~.~.~.~.~> Steam or water added
16  DF  .~.~.~.~.~> Vacuum or pressure utilized (e.g., normally gaseous hydrocarbon solvent kept liquid under pressure, etc.)


DEFINITION

Classification: 554/12

(under subclass 9) Processes wherein the legume, nut, or seed source material is subjected to the action of an organic solvent to dissolve out the fatty compound(s).

SEE OR SEARCH THIS CLASS, SUBCLASS:

15, or 17, for processes wherein water is utilized in a solvent extraction.

(1) Note. Oil is not miscible with water so in the subclasses wherein water or steam is added, the water or steam is utilized as a heating medium or to dissolve out nonoleaginous principles such as impurities.