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Class Information
Number: 585/812
Name: Chemistry of hydrocarbon compounds > Purification, separation, or recovery > By cooling of liquid to obtain solid, e.g., crystallization, etc.
Description: Subject matter wherein the purification, separation, or recovery process includes lowering the temperature of a liquid mixture, containing a hydrocarbon to be recovered, to cause one or more components of the mixture to solidify.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7605296 |
Method for separating and purifying 2,6-dimethylnaphthalene |
Oct. 20, 2009 |
| 7540884 |
Method for performing the purifying separation of crystals out their suspension in a mother liquor |
Jun. 2, 2009 |
| 7405340 |
Process for recovering paraxylene utilizing ammonia absorption refrigeration |
Jul. 29, 2008 |
| 7381855 |
Process for producing adamantane |
Jun. 3, 2008 |
| 7261810 |
Method and system for transporting flows of fluid hydrocarbons containing wax, asphaltenes, and/or other precipitating solids |
Aug. 28, 2007 |
| 7094937 |
Compositions comprising cyclohexamantane |
Aug. 22, 2006 |
| 6894202 |
Method for producing 2,6-dimethylnaphthalene |
May. 17, 2005 |
| 6843851 |
Compositions comprising pentamantanes and processes for their separation |
Jan. 18, 2005 |
| 6841714 |
Process for co-production of paraxylene, metaxylene and/or orthoxylene |
Jan. 11, 2005 |
| 6838588 |
Process for co-producing para-xylene and metaxylene, comprising two separation steps |
Jan. 4, 2005 |
| 6828470 |
Coproduction process for para-xylene and ortho-xylene comprising two separation steps |
Dec. 7, 2004 |
| 6737558 |
Process for the separation of 2,6-dimethylnaphthalene from mixtures containing it |
May. 18, 2004 |
| 6600083 |
Para-xylene production process integrating pressure swing adsorption and crystallization |
Jul. 29, 2003 |
| 6566410 |
Methods of demulsifying emulsions using carbon dioxide |
May. 20, 2003 |
| 6525235 |
Method for manufacturing 2,6-dimethylnaphthalene |
Feb. 25, 2003 |
| 6413480 |
Method of separation of hydrocarbon oils from a waxy feedstock and separation system for implementation of said method |
Jul. 2, 2002 |
| 6399846 |
Process for production of paraxylene comprising a high-temperature crystallization with at least one stage and a partial melting of the crystals |
Jun. 4, 2002 |
| 6383233 |
Separation process |
May. 7, 2002 |
| 6376736 |
Production of high purity meta-xylene |
Apr. 23, 2002 |
| 6364914 |
Method of crystallization with the particle size distribution being controlled |
Apr. 2, 2002 |
| 6291735 |
Process for preparation of high-purity indene |
Sep. 18, 2001 |
| 6194609 |
Crystallization in a plate heat exchanger |
Feb. 27, 2001 |
| 6147272 |
Process for separating paraxylene comprising at least two crystallization stages at high temperature |
Nov. 14, 2000 |
| 6111161 |
Process for production of paraxylene comprising a high-temperature crystallization with at least one stage and a partial melting of the crystals |
Aug. 29, 2000 |
| 6074441 |
Process for producing ultrafine-crystallization products |
Jun. 13, 2000 |
| 6072098 |
Process for producing highly pure 2,6-dimethylnaphthalene |
Jun. 6, 2000 |
| 6063978 |
Process for separating paraxylene comprising at least one crystallization stage at high temperature and at least one clay treatment upstream from the adsorption zone |
May. 16, 2000 |
| 6060634 |
Production of para-xylene from an effluent from paraselective toluene disproportionation using a crystallization process combined with simulated moving bed adsorption |
May. 9, 2000 |
| 6056791 |
Process for the production of particles or powders |
May. 2, 2000 |
| 6057487 |
Method for producing 2,6-DMN from mixed dimethylnaphthalenes by crystallization, adsorption and isomerization |
May. 2, 2000 |
| 6004452 |
Process for converting hydrocarbon feed to high purity benzene and high purity paraxylene |
Dec. 21, 1999 |
| 5977426 |
Crystallization of 2,6-dimethylnaphthalene |
Nov. 2, 1999 |
| 5948949 |
Process for producing 2,6-dimethylnaphthalene |
Sep. 7, 1999 |
| 5922924 |
Process for the separation of p-xylene in C.sub.8 aromatic hydrocarbons with a simulated moving bed adsorption and a crystallization |
Jul. 13, 1999 |
| 5871981 |
Conversion of indene to (1S)-amino-(2R)-indanol free of any steroisomer by combination of fermentation of Rhodococcus sp. ATCC 55805 and chemical steps |
Feb. 16, 1999 |
| 5810892 |
Method and apparatus for purifying chemical substances |
Sep. 22, 1998 |
| 5808169 |
Process for the preparation of 1,2,4,5-dimethyldiisopropylbenzene |
Sep. 15, 1998 |
| 5725608 |
Process and apparatus for material separation by crystallization from the melt |
Mar. 10, 1998 |
| 5718733 |
Method for accelerating solidification of low melting point products |
Feb. 17, 1998 |
| 5569808 |
Method for regulating a process for the separation of isomers of aromatic hydrocarbons having from 8 to 10 carbon atoms |
Oct. 29, 1996 |
| 5510563 |
Crystallizaiton of 2,6-dimethylnaphthalene |
Apr. 23, 1996 |
| 5498822 |
Single temperature stage crystallization of paraxylene |
Mar. 12, 1996 |
| 5448005 |
Crystallization of paraxlene from high purity paraxylene feeds |
Sep. 5, 1995 |
| 5414189 |
Isolation of high purity diamondoid fractions and components |
May. 9, 1995 |
| 5409505 |
Method and apparatus for crystallization of organic matter |
Apr. 25, 1995 |
| 5264653 |
Process for purifying 1,1,3,4,4,6-hexamethyltetralin |
Nov. 23, 1993 |
| 5245104 |
Method and apparatus for producing and separating diamondoid compounds from natural gas streams |
Sep. 14, 1993 |
| 5220098 |
Process for separating 2, 7-dimethylnaphthalene under pressure |
Jun. 15, 1993 |
| 5147412 |
Production of dispersions of spherical particles by crystallization of emulsions |
Sep. 15, 1992 |
| 5110507 |
Method of separating and purifying spent solvent generated in nuclear fuel cycle |
May. 5, 1992 |
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