ISSN print edition: 0366-6352 ISSN electronic edition: 1336-9075 Registr. No.: MK SR 9/7 Published monthly

The synthesis of vinyl acetate in the gas phase. II. Optimum volumetric velocity. Time-volume yields and life of the catalyst

J. Janda and A. Vanko

Research Institute for Acetylenchemistry, Nováky

Abstract: cf. C.A. 52, 8041h. The optimum conditions for the synthesis of AcOCH:CH₂ (I) from C₂H₂ and AcOH on a solid Zn catalyst (II) are given. The compn. of II is 50% Zn(OAc)₂ on the active C of the 'Dezorex FB' on 'Bensorbon S' type surface area 600-800 sq. m./g., optimum reaction temp. 190°, molar ratio of C₂H₂ to AcOH 6-8:1, optimum flow of C₂H₂ 120-140 l./hr./l. II, and time-vol. yields corresponding to these conditions 55 g. I/hr./l. II. In the beginning of the synthesis the reaction temp. should be lowered and the amt. of C₂H₂ increased to 8-10:1 C₂H₂-AcOH. With gradual exhaustion of the II, the temp. should be raised and the amt. of C₂H₂ decreased to 4:1.

Full paper in Portable Document Format: 1211a657.pdf (in Slovak)

Chemical Papers 12 (11) 657–669 (1958)