Method of hygienic disposal of chlorine-containing plastic mater

Details Method of hygienic disposal of chlorine-containing plastic mater Method of hygienic disposal of chlorine-containing plastic mater

1975-08-27

1977-06-21

Stern, Edward

Chemistry of inorganic compounds

Halogen or compound thereof

Hydrogen halide

423481, 423659, 23262, C01B 708

Patent

active

040311929

ABSTRACT:
To dispose of high-polymer, chlorine-containing plastics, such as PVC, without liberating hydrochloric acid in the atmosphere, the material is placed in a closed vessel and contacted with super-heated steam to split off gaseous hydrochloric acid; the resulting mixture of water vapor, steam and hydrochloric acid is removed, cooled and condensed, so that hydrochloric acid can be derived therefrom; the residue of the material after the hydrochloric acid has been removed can then be safely incinerated with other refuse, etc.

REFERENCES:
patent: 2196246 (1940-04-01), Brown et al.
patent: 3220798 (1965-11-01), Cull et al.
patent: 3394056 (1968-07-01), Nadler et al.
patent: 3445192 (1969-05-01), Woodland et al.
patent: 3716339 (1973-02-01), Shigaki et al.
patent: 3829558 (1974-08-01), Banks et al.
patent: 3933989 (1976-01-01), Itoh et al.

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