reuse of ausgangsgassen in the n - butankonversion to maleic anhydride

摘要

In producing maleic anhydride by catalytic oxidation of butane in vapour phase, the reaction mixture consists of butane and a recycle gaseous current made of compressed air and exhaust gas recovered from the absorption stage by a solvent of the maleic anhydride produced; oxygen and total butane concentration in the recycle stream are controlled. MATH