Process for producing carboxylic acid esters from nitriles

Details Process for producing carboxylic acid esters from nitriles Process for producing carboxylic acid esters from nitriles

1981-07-28

1983-10-04

Trousof, Natalie

Organic compounds -- part of the class 532-570 series

Organic compounds

Carboxylic acid esters

560103, 560265, 502241, 502242, 502243, 502246, 502258, 502353, C07C 6722

Patent

active

044080670

ABSTRACT:
In a process for preparing a carboxylic acid ester from a nitrile, water and an alcohol in the vapor phase, wherein the vapor is brought into contact with a catalyst, the improvement which comprises said catalyst being a titanium containing oxide catalyst which is obtained by hydrolyzing or neutralizing a water soluble titanium salt and subsequently calcining the resulting precipitate at a temperature in a range of about 300.degree. to 750.degree. C. and having the empirical formula Ti.sub.a Me.sub.b X.sub.c O.sub.d, wherein Me represents at least one element selected from the group consisting of Cu, Ag, Au, Mg, Zn, Sn, Pb, Zr, V, Bi, Cr, W, Mo, Mn, Fe, Co and Ni and X represents at least one element selected from the group consisting of Si and Sb and the subscripts a, b, c and d designate the atomic ratio and when a is 1, b is 0.01 to 12, c is 0 to 12 and b+c is 0.01 to 12 and d is the oxygen content of the catalyst formed by the combination of the above components.

REFERENCES:
patent: 2913486 (1959-11-01), Veatch et al.
patent: 3466320 (1969-09-01), Hargis
patent: 3639461 (1972-02-01), Ito et al.
patent: 4161609 (1979-07-01), Cramer
Kirk=Othmer, "Encyclopedia of Chemical Technology" 2nd Ed. (1965) vol. 8, pp. 339-340.
Finar, I. L., "Organic Chemistry" Longmans, Publ. (1963) p. 295.
Chemical Abstracts, vol. 77 (1972) #4988r.
Chemical Abstracts, vol. 87 (1977) #185,236u.

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