Perchloro- and Trichloroethylene

Figure 7-6. The PPG Industries Inc. Chloroethylene process for producing perchloro- and trichloroethylene (1) reactor, (2) graphite exchanger, (3) refrigerated condenser, (4) scrubber, (5) phase separation of perchlor from trichlor, (6, 7) azeotropic distillation, (8) distillation train, (9-11) crude trichlor separation—purification, (10-16) crude perchlor separation—purification.

Compounds which are themselves finished products, such as solvents (perchloro and trichloroethylene, ethanolamines, carbon tetrachloride) or which are only involved in small amounts in the chemical industry (glycerin, oxalic add) are not covered by specific studies. [Pg.8]

NOTE - Petrochemical plants also generate significant amounts of solid wastes and sludges, some of which may be considered hazardous because of the presence of toxic organics and heavy metals. Spent caustic and other hazardous wastes may be generated in significant quantities examples are distillation residues associated with units handling acetaldehyde, acetonitrile, benzyl chloride, carbon tetrachloride, cumene, phthallic anhydride, nitrobenzene, methyl ethyl pyridine, toluene diisocyanate, trichloroethane, trichloroethylene, perchloro-ethylene, aniline, chlorobenzenes, dimethyl hydrazine, ethylene dibromide, toluenediamine, epichlorohydrin, ethyl chloride, ethylene dichloride, and vinyl chloride. [Pg.57]

Hexachlorobutadiene is an industrial by-product of tetrachloroethylene, trichloroethylene, and perchloro-ethylene production and is used as a solvent for elastomers, heat transfer liquids, transformer fluids, and hydraulic fluids. Hexachlorobutadiene may still be used in certain countries as a fumigant. It is also released during refuse combustion and is found in fly ash. [Pg.1324]

As in steam cracking, a large number of by-products is produced. Some of them result from the consecutive reactions of the chlorination of vinyl chloride and of its derivatives obtained by dehydrochlorination (tri-, tetra-, pentachloroethane, perchloro-ethane, di-, trichloroethylene. perchloroethyleneX and the others from the hydrochlorination of vinyl chloride il.l-dichloroethane), while others result from decomposition reactions (acetylene, cokei or conversion of impurities initially present (hydrocarbons such as ethylene, butadiene and benzene, chlorinated derivatives such as chloroprene, methyl and ethyl Chlorides, chloroform, carbon tetrachloride, eta, and hydrogen) ... [Pg.161]

This condensation with trichloroethylene has also been performed with perchloro-p-xylene and with perchlorobi-p-tolyl (Ballester et al., 1967). From the first chlorocarbon, four isomers were isolated instead of the expected three (cis,cis cis,trans trans,trans) (see p. 322). [Pg.320]

Description (at STP) Volatile, colourless liquid, sweet odour Volatile, colourless liquid, sweet odour Volatile, colourless liquid, sweet odour Crystalline, aromatic, white, solid hydrocarbon. Odour of mothballs Volatile, colourless liquid with mildly sweet odour. Also known as tetra-chloroethylene, PERC, perchloro-ethylene, and PCE. Colourless volatile liquid with sweet odour like chloroform. Vapour is much denser than air. Also known as trichloroethylene, ethylene trichloride, TCE and trilene Colourless gas with slightly sweet odour... [Pg.29]

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