Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Browse by Category: Main > Chemistry
Class Information
Number: 585/838
Name: Chemistry of hydrocarbon compounds > Purification, separation, or recovery > By addition of extraneous agent, e.g., solvent, etc. > Different, sequentially used agents > Resolution of feed into more than two different components
Description: Subject matter wherein three or more different materials, contained in the feedstock to the process, are separated from each other.










Patents under this class:

Patent Number Title Of Patent Date Issued
8101812 Extraction of hydrocarbons from hydrocarbon-containing materials Jan. 24, 2012
7718841 Extractive distillation May. 18, 2010
7572948 Fulvene purification Aug. 11, 2009
7186876 Process to prepare a process oil Mar. 6, 2007
6566410 Methods of demulsifying emulsions using carbon dioxide May. 20, 2003
6410816 Processing oil and method for producing the same Jun. 25, 2002
5942654 Process for the removal of corrosive compounds from a fluid stream Aug. 24, 1999
4960958 Catalysts for catalytic pyrolysis of phenol distillation residue and process for recovering useful substances by pyrolysis the same Oct. 2, 1990
4353840 Use of amine-aluminum chloride adducts as alkylation inhibitors in a ligand-complexing process Oct. 12, 1982
4174353 Olefin separation process Nov. 13, 1979
4140587 Process for the separation of diolefins from mixtures containing the same Feb. 20, 1979
4038332 Separation of ethyl fluoride Jul. 26, 1977
3979474 Process for separating isobutylene from C.sub.4 hydrocarbon mixtures Sep. 7, 1976
3944483 Distillative recovery of aromatics with water addition in azeotropic proportions Mar. 16, 1976











 
 
  Recently Added Patents
Method and apparatus for establishing a media clip
Catheter with multiple electrode assemblies for use at or near tubular regions of the heart
Method and apparatus for laser strip splicing
Content reproduction apparatus and content processing method therefor
Device and method for producing a fluidic connection between cavities
Polyureas made from aminocrotonates and enaminones
Systems and methods for electronic verification of vehicle insurance coverage
  Randomly Featured Patents
Immobolized light emitting systems
Gaseous fuel and air proportioning device
Tandem independently inflatable/deflatable multiple diameter balloon angioplasty catheter systems and method of use
Ion beam diagnostics
Watertight trim tab actuator
Procedure for assay of liquids containing undissolved solids, semisolids or colloids
Dresser
Running yarn line inspection method and carbon fiber manufacturing method using thereof
Certain cyclic thio substituted acylaminoacid amide derivatives
Apparatus for forming solid carbon dioxide