| |
 |
|
Class Information
Number: 570/262
Name: Organic compounds -- part of the class 532-570 series > Organic compounds (class 532, subclass 1) > Halogen containing > Purification or recovery
Description: Process wherein a halogen containing compound is separated from a mixture or in which impurities are separated from said compound.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7405334 |
Process for the reduction of acidic contaminates in fluorinated hydrocarbons |
Jul. 29, 2008 |
| 7291757 |
Method and device for utilizing heat in the production of 1,2-dichloroethane |
Nov. 6, 2007 |
| 7182840 |
Method and device for exploiting heat resulting from the production of 1,2-dichloroethane |
Feb. 27, 2007 |
| 7163606 |
Process for recovering methylene chloride |
Jan. 16, 2007 |
| 7132579 |
Method of chlorine purification and process for producing 1,2-dichloroethane |
Nov. 7, 2006 |
| 7112709 |
Method for reusing heavy end by-products in the manufacture of polychlorinated alkanes |
Sep. 26, 2006 |
| 7045668 |
Production and use of hexafluoroethane |
May. 16, 2006 |
| 6956143 |
Process for dissolving salts in 1,2-dichloroethane using ultrasound and a device for carrying out said process |
Oct. 18, 2005 |
| 6878853 |
Process for preparing dihalogenated adamantanes |
Apr. 12, 2005 |
| 6844474 |
Process for the production of difluoromethane |
Jan. 18, 2005 |
| 6787678 |
Method of removing water from hydrofluorocarbon manufacturing processes |
Sep. 7, 2004 |
| 6646171 |
Process for the crystallization of sterically hindered compounds |
Nov. 11, 2003 |
| 6589444 |
Process for separating water from chemical mixtures |
Jul. 8, 2003 |
| 6552238 |
Separation of heavy ends from streams of halogenated alkanes |
Apr. 22, 2003 |
| 6534688 |
Dehydrochlorination stabilization of polychlorinated alkanes |
Mar. 18, 2003 |
| 6423189 |
Process for the preparation of 1,3-dichloropropane |
Jul. 23, 2002 |
| 6323380 |
Water removal in purification of vinyl chloride |
Nov. 27, 2001 |
| 6320087 |
Adsorbent for separating halogenated aromatic compounds and separation method |
Nov. 20, 2001 |
| 6229059 |
Process for the production of 1, 2-dichloroethane |
May. 8, 2001 |
| 6150573 |
Concurrent production of trichloroethane isomers |
Nov. 21, 2000 |
| 6121506 |
Method for destroying energetic materials |
Sep. 19, 2000 |
| 6101818 |
Process for separating water from chemical mixtures |
Aug. 15, 2000 |
| 6093286 |
Process for purifying n-butyl chloride |
Jul. 25, 2000 |
| 5998691 |
Method and apparatus to destroy chemical warfare agents |
Dec. 7, 1999 |
| 5914432 |
Hydrogenation of halogenated compounds |
Jun. 22, 1999 |
| 5882485 |
Process for the separation of dimethyl ether and chloromethane in mixtures |
Mar. 16, 1999 |
| 5843286 |
Process for the preparation and fractionation of a mixture of dimethyl ether and chloromethane with water as extractant |
Dec. 1, 1998 |
| 5789633 |
Azeotropic or azeotrope-like compositions of hydrofluoric acid with dihaloethanes |
Aug. 4, 1998 |
| 5780695 |
Process for the selective saturation of olefin-containing halogenated organic streams |
Jul. 14, 1998 |
| 5744669 |
Process for the conversion of a halogenated organic stream containing trace quantities of organic nitrates |
Apr. 28, 1998 |
| 5698750 |
Methods for purifying and recovering contaminated refrigerants with aqueous solutions of bases |
Dec. 16, 1997 |
| 5672266 |
Treatment of organic compounds to reduce chlorine level |
Sep. 30, 1997 |
| 5637782 |
Process for the selective saturation of olefin-containing halogenated organic streams |
Jun. 10, 1997 |
| 5616821 |
Methods for purifying and recovering contaminated refrigerants with solutions of bases in organic solvents |
Apr. 1, 1997 |
| 5602295 |
Methods for the elimination of cyanides in the dehalogenation of halofluorocarbons |
Feb. 11, 1997 |
| 5600041 |
Process for the selective removal of organic nitrates from a halogenated organic stream containing trace quantities of organic nitrates |
Feb. 4, 1997 |
| 5559278 |
Methods for the destruction of ozone depleting substances |
Sep. 24, 1996 |
| 5536891 |
Purification of 1,1,1,-trichloroethane |
Jul. 16, 1996 |
| 5514251 |
Process for the removal of water from a solution by azeotropic distillation and process for the production of a hydrofluoroalkane |
May. 7, 1996 |
| 5504239 |
Process for separating off alkanols from other organic compounds of higher carbon number |
Apr. 2, 1996 |
| 5500097 |
Method for removing organic compound in water |
Mar. 19, 1996 |
| 5489390 |
Treatment of organic compounds to reduce chlorine level |
Feb. 6, 1996 |
| 5436211 |
Process for the recovery of adsorbed solvents |
Jul. 25, 1995 |
| 5436378 |
Drying of hydrocarbon/hydrochloric acid/water admixtures |
Jul. 25, 1995 |
| 5425854 |
Separation of methylene chloride from tetrahydrofuran by extractive distillation |
Jun. 20, 1995 |
| 5414200 |
Non-metallized and subtoichiometric metallized reactions with ammonia and other weak bases in the dehalogenation of refrigerants |
May. 9, 1995 |
| 5396003 |
Recovery and purification of 1,1,2-trichloroethane for reuse in the production of ioversol |
Mar. 7, 1995 |
| 5324393 |
Fouling prevention in ethylene dichloride distillation units |
Jun. 28, 1994 |
| 5288929 |
Method for removing, condensing and collecting propellants from foam materials |
Feb. 22, 1994 |
| 5262014 |
Process for removing acetone from a mixture of acetone, methyl, acetate and methyl iodide |
Nov. 16, 1993 |
|
|
|
