A process for the oxidation of a C.sub.2 to C.sub.4 alkane to produce the
corresponding alkene and carboxylic acid which process comprises
separation of the alkene from a mixture of the alkene, the alkane and
oxygen by absorption in a metallic salt solution, and recovery of an
alkene-rich stream from the metallic salt solution. Integrated processes
for the production of alkyl carboxylate and alkenyl carboxylate, which
processes comprise oxidation of a C.sub.2 to C.sub.4 alkane to produce
the corresponding alkene and carboxylic acid, separation of the alkene
from a mixture of the alkene, the alkane and oxygen by absorption in a
metallic salt solution, and recovery of an alkene-rich stream from the
metallic salt solution for use in production of alkyl carboxylate or
alkenyl carboxylate.