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Class Information
Number: 585/839
Name: Chemistry of hydrocarbon compounds > Purification, separation, or recovery > By addition of extraneous agent, e.g., solvent, etc. > Different, sequentially used agents > Later agent disengages earlier, e.g., decomplexing agent, etc.
Description: Subject matter in which a later agent is contacted with the product of contacting an earlier agent with the feedstock or feedstock component, e.g., a complex, an extract phase, etc., to reverse the original interaction and release hydrocarbon and the earlier agent.










Sub-classes under this class:

Class Number Class Name Patents
585/840 Later agent is hydrocarbon 10


Patents under this class:

Patent Number Title Of Patent Date Issued
7879225 Energy efficient and throughput enhancing extractive process for aromatics recovery Feb. 1, 2011
7781635 Surfactant-based purification of nanotubes Aug. 24, 2010
7074980 Purification process of carbon nanotubes Jul. 11, 2006
5942654 Process for the removal of corrosive compounds from a fluid stream Aug. 24, 1999
5741932 Process for preparation of ajoene Apr. 21, 1998
5177232 Method for chemically modifying a metal complex Jan. 5, 1993
4836896 Separation of m-diisopropylbenzene from p-diisoproylbenzene by azeotropic distillation with acetophenone Jun. 6, 1989
4287379 Process for obtaining isobutene from C.sub.4 -hydrocarbon mixtures containing isobutene Sep. 1, 1981
4267034 Separating olefins from paraffins with dimethyl sulfoxide extractant May. 12, 1981
4174353 Olefin separation process Nov. 13, 1979
4129605 Recovering styrene by complexing with copper(I) sulfonates Dec. 12, 1978
4116955 Inclusion complex compound, process for its production, and method for its use Sep. 26, 1978
4117023 Method of separation of catalytic residues derived from aluminum chloride Sep. 26, 1978
4108916 Purification of saturated hydrocarbons Aug. 22, 1978
4101413 Extraction of coal Jul. 18, 1978
4098838 Process for obtaining sulfur free pure naphthalene from bituminous coal tar and thionaphthene as a by-product Jul. 4, 1978
4048062 Aromatic extraction with solvent recovery and regeneration Sep. 13, 1977
4046675 Aromatic hydrocarbon separation via solvent extraction Sep. 6, 1977
4046641 Process and apparatus for the separation of crude benzol and naphthalene from washing oil Sep. 6, 1977
4046676 Aromatic hydrocarbon separation via solvent extraction Sep. 6, 1977
4038156 Butadiene recovery process Jul. 26, 1977
4038332 Separation of ethyl fluoride Jul. 26, 1977
4022839 Recovery of aluminum from ethylene telomer product May. 10, 1977
4020121 Oligomerization reaction system Apr. 26, 1977
4018843 Process for the obtaining of isobutylene of high purity Apr. 19, 1977
4009217 Process for production and dehydrogenation of ethylbenzene Feb. 22, 1977
3960976 Method for the separation of hydrocarbons Jun. 1, 1976
3944628 Method for the separation of hydrocarbons Mar. 16, 1976
3944483 Distillative recovery of aromatics with water addition in azeotropic proportions Mar. 16, 1976











 
 
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