CALCIUM PHOSPHATE CATALYST FOR VAPOUR-PHASE DEHYDRATION OF METHYPHENYLCARBINOL FRACTION Russian patent published in 2017 - IPC B01J27/16 B01J27/06 B01J23/02 C07C15/46

Abstract RU 2608303 C1

FIELD: oil and gas industry.

SUBSTANCE: invention relates to petrochemical industry, in particular to catalysts for vapour-phase dehydration of methyphenylcarbinol into styrene. Disclosed is a calcium phosphate catalyst for vapour-phase dehydration of methyphenylcarbinol fraction, including calcium oxide, phosphorus pentoxide, chlorine, water, with following content of components, wt%: calcium oxide 48.9–52.2, phosphorus pentoxide 42.8–45.0 chlorine 0.1–1.0, water – balance. Technical result is increasing selectivity of process of vapour-phase dehydration of methyphenylcarbinol to styrene to 99.77 %.

EFFECT: high selectivity of process of vapour-phase dehydration of methyphenylcarbinol fraction to styrene.

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RU 2 608 303 C1

Authors

Dates

2017-01-17—Published

2015-08-06—Filed