| |
 |
|
Class Information
Number: 570/238
Name: Organic compounds -- part of the class 532-570 series > Organic compounds (class 532, subclass 1) > Halogen containing > Processes of preparing, purifying, or recovering unsaturated compound > Purification or recovery
Description: Process wherein a compound containing carbon to carbon unsaturated 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 |
| 7112709 |
Method for reusing heavy end by-products in the manufacture of polychlorinated alkanes |
Sep. 26, 2006 |
| 6979754 |
Method for obtaining polymerizable vinyl chloride from a raw product derived from the pyrolysis of 1,2-dichloroethane |
Dec. 27, 2005 |
| 6881872 |
Less colored trans-1,3-dichloropropene and process for its production |
Apr. 19, 2005 |
| 6787678 |
Method of removing water from hydrofluorocarbon manufacturing processes |
Sep. 7, 2004 |
| 6441257 |
Process for the treatment of a cracking gas from the cracking of 1,2-dichloroethane |
Aug. 27, 2002 |
| 6160189 |
Reducing the monovinyl acetylene and/or butadiene content of impure vinyl chloride |
Dec. 12, 2000 |
| 6111152 |
Method for separating vinyl chloride from a thermally decomposed product of 1,2-dichloroethane |
Aug. 29, 2000 |
| 6103945 |
Process for converting the low-boiling by-products formed during the thermal cracking of 1,2-dichloroethane |
Aug. 15, 2000 |
| 5744669 |
Process for the conversion of a halogenated organic stream containing trace quantities of organic nitrates |
Apr. 28, 1998 |
| 5731482 |
Method for purifying perchloroethylene containing dichlorobutadiene |
Mar. 24, 1998 |
| 5705721 |
Dispersant for chloroprene unit fouling |
Jan. 6, 1998 |
| 5600041 |
Process for the selective removal of organic nitrates from a halogenated organic stream containing trace quantities of organic nitrates |
Feb. 4, 1997 |
| 5558746 |
Apparatus for quenching a gas stream in the production of vinyl chloride monomer |
Sep. 24, 1996 |
| 5507921 |
Method for quenching a gas stream in the production of vinyl chloride monomer |
Apr. 16, 1996 |
| 5292973 |
Phosphine oxide removal from compounds formed by a Wittig reaction |
Mar. 8, 1994 |
| 5288929 |
Method for removing, condensing and collecting propellants from foam materials |
Feb. 22, 1994 |
| 5283383 |
Antitumor compound, compositions and method of use |
Feb. 1, 1994 |
| 5237114 |
Removal of catalyst from chloroprene by treatment with oxy acid |
Aug. 17, 1993 |
| 5175381 |
Process for recovering halogenated hydrocarbons from synthetic foams |
Dec. 29, 1992 |
| 5132474 |
Method of recovering hydrocarbon halide |
Jul. 21, 1992 |
| 5098525 |
Process for disposing of residues deriving from the synthesis of chlorinated hydrocarbons |
Mar. 24, 1992 |
| 5068474 |
Process for the purification of vinyl chloride |
Nov. 26, 1991 |
| 5059730 |
Process for the purification of vinyl chloride |
Oct. 22, 1991 |
| 5043496 |
Process for the treatment of heavy chlorination residues |
Aug. 27, 1991 |
| 4822932 |
Heat recovery in production of vinyl chloride by pyrolysis of dichloroethane |
Apr. 18, 1989 |
| 4788357 |
Vinyl chloride production |
Nov. 29, 1988 |
| 4760211 |
Process for producing brominated acenaphthylene and its condensates |
Jul. 26, 1988 |
| 4760206 |
Process for removing butadiene from vinyl chloride in a quench tower |
Jul. 26, 1988 |
| 4754087 |
Process for the preparation of primary tertiary allyl halides |
Jun. 28, 1988 |
| 4642400 |
Process for finishing vinyl chloride monomer |
Feb. 10, 1987 |
| 4558167 |
Hydrogen chloride-propylene separation |
Dec. 10, 1985 |
| RE31330 |
1,1,1-Trihalogeno-4-methylpentenes, method of preparing the same and use of the same in the preparation of 1,1-dihalogeno-4-methyl-1,3-pentadienes |
Aug. 2, 1983 |
| 4358627 |
Reducing chloride concentration |
Nov. 9, 1982 |
| 4333799 |
Purification and recovery of ethylene dichloride |
Jun. 8, 1982 |
| 4328376 |
Method of removing fluorinated olefin byproduct formed during the synthesis of a fluorinated ether |
May. 4, 1982 |
| 4221659 |
Process for reducing dichlorobutene contamination in aqueous plant wastes |
Sep. 9, 1980 |
| 4188347 |
Process for treating unreacted 1,2-dichloroethane from 1,2-dichloroethane cracking |
Feb. 12, 1980 |
| 4170601 |
Method for isolating insect sex pheromones |
Oct. 9, 1979 |
| 4168283 |
Process for drying copper containing catalyst waste |
Sep. 18, 1979 |
| 4167528 |
Process for the production of tetrabromoethylene |
Sep. 11, 1979 |
| 4151202 |
Preparation of diallyl dimethyl ammonium chloride and polydiallyl dimethyl ammonium chloride |
Apr. 24, 1979 |
| 4137273 |
Phenolic ethers |
Jan. 30, 1979 |
| 4122249 |
Solvent removal from chlorinated polymers |
Oct. 24, 1978 |
| 4104316 |
Process for the preparation of 2-chlorobuta-1,3-diene |
Aug. 1, 1978 |
| 4094915 |
Recovery of 12-dichloroethane from vinyl chloride production effluent |
Jun. 13, 1978 |
| 4089751 |
Process for recovering high purity cis-1,4-dichlorobutene-2 |
May. 16, 1978 |
| 4080393 |
Method of rectifying solvents of the chlorinated hydrocarbon series |
Mar. 21, 1978 |
| 4071571 |
Control of molten salt oxidation in production of chlorinated hydrocarbons |
Jan. 31, 1978 |
| 4070405 |
Process for working up liquid copper-containing catalyst waste from isomerization reactions of dichlorobutene |
Jan. 24, 1978 |
|
|
|
