Side-chain methylation of toluene on systems formed by zeolite NaY and alkali metal salts

Journal Article · Fri Dec 31 04:00:00 EST 1993 · Petroleum Chemistry

OSTI ID:433205

Usachev, N Ya; Lapidus, A L; Usacheva, O N ^[1]

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1. N.D. Zelinskii Institute of Organic Chemistry, Moscow (Russian Federation); and others

An investigation has been made of the properties of systems formed by zeolite NaY and alkali metal (Na, K, Ca) salts in the side-chain alkylation of toluene by methanol at 400-450{degrees}C and atmospheric pressure. It has been established that the introduction of carbonates of these metals (as opposed to salts, the anions of which are formed by P, Mo, N and Cl) into the zeolite by impregnation leads to catalytically active systems. Their adsorption properties and thermal characteristics indicate dispersion and stabilization of the salts in the zeolite structure. It is concluded that the nature of the cations and anions of the occluded salts affects the basicity of the modified zeolites, which, along with reducing the free volume of the zeolite cavities, has a considerable effect on the catalytic properties of the systems studied. 13 refs., 1 fig., 2 tabs.

• OSTI ID: 433205
• Journal Information: Petroleum Chemistry, Journal Name: Petroleum Chemistry Journal Issue: 4 Vol. 33; ISSN PHEME4
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
ALKYLATION
CARBONATES
CATALYTIC EFFECTS
METHANOL
METHYLATION
SALTS
SODIUM COMPOUNDS
STYRENE
TOLUENE
YTTRIUM COMPOUNDS
ZEOLITES