Method for the regeneration of spent molten zinc chloride

Details Method for the regeneration of spent molten zinc chloride Method for the regeneration of spent molten zinc chloride

1979-12-10

1981-03-24

Konopka, P. E.

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

203 41, 208 10, 208108, 252417, 423107, 423491, B01J 2732, B01J 3512, C10G 106, C01B 900

Patent

active

042579147

ABSTRACT:
In a process for regenerating spent molten zinc chloride which has been used in the hydrocracking of coal or ash-containing polynuclear aromatic hydrocarbonaceous materials derived therefrom and which contains zinc chloride, zinc oxide, zinc oxide complexes and ash-containing carbonaceous residue, by incinerating the spent molten zinc chloride to vaporize the zinc chloride for subsequent condensation to produce a purified molten zinc chloride: an improvement comprising the use of clay in the incineration zone to suppress the vaporization of metals other than zinc. Optionally water is used in conjunction with the clay to further suppress the vaporization of metals other than zinc.

REFERENCES:
patent: 3388993 (1968-06-01), Peterson et al.
patent: 3594329 (1971-07-01), Gorin et al.
patent: 3667934 (1972-06-01), Derham et al.
patent: 4081400 (1978-03-01), Gorin
patent: 4162963 (1979-07-01), Gorin
patent: 4182747 (1980-01-01), Gravey

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