Process for the dimerization of acrylonitrile

Details Process for the dimerization of acrylonitrile Process for the dimerization of acrylonitrile

1977-06-29

1978-05-16

Brust, Joseph Paul

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07C12900, C07C12120

Patent

active

040898903

ABSTRACT:
Catalyst composition for the dimerisation of acrylonitrile comprising an organo-phosphorus compound of formula ##STR1## bonded to a matrix of an inorganic oxide having surface --OH groups, especially of silica or alumina. Groups R and Y are hydrocarbyl. The catalyst compositions are prepared by heating the matrix with an appropriate phosphorus compound having group(s) X which react with --OH groups with the elimination of HX. The invention also relates to a process for the dimerisation of acrylonitrile. Main products are 1,4-dicyanobutene-1 and 2-methylene glutaronitrile.

REFERENCES:
patent: 3225083 (1965-12-01), McClure
patent: 3484475 (1969-12-01), Cornforth et al.
patent: 3671565 (1972-06-01), Yoo
patent: 3726809 (1973-04-01), Allum et al.
patent: 3729498 (1973-04-01), Masada et al.
patent: 3732281 (1973-05-01), Feldman et al.
patent: 3790617 (1974-02-01), Masada et al.

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