Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Browse by Category: Main > Chemistry
Class Information
Number: 585/833
Name: Chemistry of hydrocarbon compounds > Purification, separation, or recovery > By addition of extraneous agent, e.g., solvent, etc.
Description: Subject matter in which a material which does not form part of the desired product is added to the mixture to be purified or separated as an aid to such purification or separation.










Sub-classes under this class:

Class Number Class Name Patents
585/843 Ag 30
585/853 Alkaline metal-containing 44
585/845 Cu 42
585/836 Different, sequentially used agents 44
585/851 Group iii nontransition element-containing 14
585/850 Group vii or viii transition metal-containing, e.g., werner complex formation, etc. 61
585/842 Hf and another fluoride 7
585/841 H 41
585/868 Inorganic o-containing agent 74
585/855 Metal-containing 52
585/860 N-containing 162
585/864 Organic agent 241
585/856 S containing 70
585/834 With contact procedure involving particular apparatus or more than two moving streams 46
585/835 With fractional disengagement from agent by use of other agent 20


Patents under this class:
1 2 3 4 5 6

Patent Number Title Of Patent Date Issued
8685234 Extraction of hydrocarbons from hydrocarbon-containing materials and/or processing of hydrocarbon-containing materials Apr. 1, 2014
8686212 Process for treatment of ethylene Apr. 1, 2014
8680358 Methods for removing heavy hydrocarbons from extractive solvents Mar. 25, 2014
8673134 Removal of nitrogen compounds from FCC distillate Mar. 18, 2014
8669407 Method of isolating linear butenes from a mixed hydrocarbon feed Mar. 11, 2014
8663461 Extraction process with novel solvent regeneration methods Mar. 4, 2014
8642827 Method for cooling in distillation and polymerisation process by absorption refrigeration Feb. 4, 2014
8598402 Butane absorption system for vent control and ethylene purification Dec. 3, 2013
8552247 Aromatics recovery by extractive distillation Oct. 8, 2013
8536397 Recovery of benzene and benzene derivatives from gasoline fraction and refinery streams Sep. 17, 2013
RE44462 Carbon dioxide fractionalization process Aug. 27, 2013
8505332 Natural gas liquid recovery process Aug. 13, 2013
8471088 Solvent quality control in extraction processes Jun. 25, 2013
8455709 Heavy hydrocarbon removal systems and methods Jun. 4, 2013
8450547 Process for cooling the stream leaving an ethylbenzene dehydrogenation reactor May. 28, 2013
8425764 Process for producing petroleum oils with ultra-low nitrogen content Apr. 23, 2013
8420879 Process for workup of a stream comprising butene and/or butadiene Apr. 16, 2013
8410329 Ethylene separation Apr. 2, 2013
8404107 Extraction of hydrocarbons from hydrocarbon-containing materials Mar. 26, 2013
8404108 Extraction of hydrocarbons from hydrocarbon-containing materials and/or processing of hydrocarbon-containing materials Mar. 26, 2013
8388828 Recovery and use of conjunct polymers from ionic liquid catalysts Mar. 5, 2013
8378164 Method for obtaining aromatic hydrocarbons from a hydrocarbon mixture Feb. 19, 2013
8366914 Multifunctional scavenger for hydrocarbon fluids Feb. 5, 2013
8362314 Method for obtaining aromatic hydrocarbons from a hydrocarbon mixture Jan. 29, 2013
8362313 Processes and systems for recovery of styrene from a styrene-containing feedstock Jan. 29, 2013
8282816 Extractive distillation process and system Oct. 9, 2012
8283507 Water gas shift for acetylene converter feed CO control Oct. 9, 2012
8237005 Method for separating and producing cyclohexene Aug. 7, 2012
8221634 Process and apparatus for separating and recovering waste alkali from cyclohexane oxidation solution Jul. 17, 2012
8142661 Residual stream upgrading in a propylene oxide-styrene monomer process Mar. 27, 2012
8124824 System and method for using super critical state carbon dioxide (CO.sub.2) as a hydrocarbon diluent Feb. 28, 2012
8110094 Regenerable and non-regenerable sorbents for acid gas removal Feb. 7, 2012
8101812 Extraction of hydrocarbons from hydrocarbon-containing materials Jan. 24, 2012
8088614 Methods and compositions for production and purification of biofuel from plants and microalgae Jan. 3, 2012
8076526 Extractive distillation of conjugated diene Dec. 13, 2011
8057666 Biomass and waste plastics to neodiesel and valuable chemicals via supercritical water Nov. 15, 2011
8058498 Device for removing oxygen-containing organic compounds from mixtures of various hydrocarbon compounds Nov. 15, 2011
8053375 Super-dry reagent compositions for formation of ultra low k films Nov. 8, 2011
8013197 Absorption and conversion of acetylenic compounds Sep. 6, 2011
7994378 Process of butadiene-1, 3 extraction Aug. 9, 2011
7989668 Lowering nitrogen-containing Lewis bases in molecular sieve oligomerisation Aug. 2, 2011
7972496 Process oil, process for production of deasphalted oil, process for production of extract, and process for production of process oil Jul. 5, 2011
7955498 Reduction of organic halide contamination in hydrocarbon products Jun. 7, 2011
7956230 Reduction of organic halide contamination in hydrocarbon products Jun. 7, 2011
7932423 Removal of inerts from natural gas using hydrate formation Apr. 26, 2011
7897827 Propylene recovery during regeneration of an oxygenate removal unit Mar. 1, 2011
7893310 Method of separating condensed liquid from an olefin stream Feb. 22, 2011
7888540 Integrated system and method for producing fuel composition from biomass Feb. 15, 2011
7875759 Process for extracting natural gas liquids from natural gas Jan. 25, 2011
7855312 Method for processing an olefin-containing product stream Dec. 21, 2010

1 2 3 4 5 6










 
 
  Recently Added Patents
Compound containing a carbon or an oxygen isotope, preparation and use thereof, and composition comprising thereof
Method and system for producing fluoride gas and fluorine-doped glass or ceramics
Radiation imaging device
Methods of enhancing diabetes resolution
Flat display panel and method for forming the same
Expression of dirigent gene EG261 and its orthologs and paralogs enhances pathogen resistance in plants
Process for preparation of Efavirenz
  Randomly Featured Patents
Paper roll holder
Fibers having improved dullness and products containing the same
Method of taking out scale from polymerization reactor
Geographical information distribution system, geographical information distribution method, geographical information distribution server, and user service providing server
Artery- and vein-specific proteins and uses therefor
Fault analysis method for a lambda probe
Method and apparatus for restoring a wire electrode
Delay locked loop circuit capable of operating in a low frequency
Polymerizable liquid crystal composition containing fluorine-substituted (meth) acrylate derivatives
Illuminating coaster