METHOD OF EXHAUSTING DISTILLATION OF VAT RESIDUE IN PHTHALIC ANHYDRIDE PRODUCTION Russian patent published in 2000 - IPC

Abstract RU 2151146 C1

FIELD: chemical technology, main organic synthesis. SUBSTANCE: invention relates to synthesis of phthalic anhydride that is large-scale tonnage substance of broad using. Method involves exhausting distillation of vat residues mixture in production of phthalic anhydride from o-xylene and naphthalene in their ratio in mixture = (2-8):(8-2). EFFECT: simplified exploitation of equipment, elimination of technological difficulties. 5 ex

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RU 2 151 146 C1

Authors

Amitin A.V.

Bljakhman L.I.

Krylova E.K.

Panfilov V.A.

Mannova E.I.

Dates

2000-06-20—Published

1999-08-17—Filed