Process for producing highly pure chlorinated alkane
AssigneeSpolek Pro Chemickou A Hutni Vyrobu A.S.
InventorsZdenek ONDRUS, Pavel KUBICEK, Karel FILAS, Petr SLADEK
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Abstract
Disclosed is a process for producing highly pure chlorinated alkane in which a chlorinated alkene is contacted with chlorine in a reaction zone to produce a reaction mixture containing the chlorinated alkane and the chlorinated alkene, and extracting a portion of the reaction mixture from the reaction zone, wherein the molar ratio of chlorinated alkane:chlorinated alkene in the reaction mixture extracted from the reaction zone does not exceed 95:5.
Claims49
A process for producing highly pure chlorinated alkane in which a chlorinated alkene is contacted with chlorine in a reaction zone to produce a reaction mixture containing the chlorinated alkane and the chlorinated alkene, and extracting a portion of the reaction mixture from the reaction zone, wherein the molar ratio of chlorinated alkane:chlorinated alkene in the reaction mixture extracted from the reaction zone does not exceed 95:5.
A process for producing highly pure chlorinated alkane comprising a reduced temperature conversion step in which a reaction mixture comprising chlorinated alkene and chlorinated alkane is fed into a principal reaction zone operated at a temperature of about −30° C. to about 30° C., about −25° C. to about 10° C., or more preferably about −20° C. to about −10° C., and extracting a chlorinated alkane rich product from the principal reaction zone.
A process for removing oxygenated organic compounds from a chlorinated alkane rich product comprising a chlorinated alkane, a chlorinated alkene and oxygenated organic compounds, comprising feeding the chlorinated alkane rich product into an aqueous treatment zone, contacting the chlorinated alkane rich product with an aqueous medium to produce a mixture and extracting i) an organic phase from that mixture or ii) a chlorinated alkane stream from that mixture, the organic phase/chlorinated alkane stream comprising reduced levels of oxygenated organic compounds as compared to the chlorinated alkane rich product fed into the aqueous treatment zone.
A method of distilling a chlorinated alkane rich product, in which distillation apparatus is employed, the distillation apparatus being free of components which, in use of the distillation apparatus, come into contact with the process fluid and comprise about 20% or more, about 10% or more, about 5% or more, about 2% or more or about 1% or more of iron.
A composition comprising:
- The chlorinated alkane product in amounts of at least about 99.7%, at least about 99.8%, at least about 99.9%, or at least about 99.95%, and one or more of the following:
- Oxygenated organic compounds in amounts of less than about 500 ppm, about 250 ppm or less, about 100 ppm or less, about 50 ppm or less, or about 10 ppm or less,
- Isomers of the chlorinated alkane of interest amounts less than about 500 ppm or less, about 250 ppm or less, or about 100 ppm or less,
- Non-isomeric alkane impurities in amounts of less than about 500 ppm, about 250 ppm or less, or about 100 ppm or less,
- Chlorinated alkenes in amounts of less than about 500 ppm, about 250 ppm or less, about 100 ppm or less, or about 50 ppm or less,
- Water in amounts of less than about 500 ppm, about 250 ppm or less, about 100 ppm or less or about 50 ppm or less,
- Inorganic compounds of chlorine in amounts of about 100 ppm or less, about 50 ppm or less, about 20 ppm or less or about 10 ppm or less,
- Brominated organic compounds in amounts of about 100 ppm or less, about 50 ppm or less, about 20 ppm or less or about 10 ppm or less, and/or
- Iron in amounts of about 100 ppm or less, about 50 ppm or less, about 20 ppm or less, about 10 ppm or less or about 5 ppm or less.
Dependencies are inferred from the claim text.