The green production processes in substitute of ACH mainly include isobutene processes, ethylene processes, isobutane processes and methylacetylene processes, which will be discussed in this paper.
替代ACH法的MMA绿色生产工艺主要有异丁烯工艺、 乙烯工艺、 异丁烷工艺以及甲基乙炔工艺等。
3
Eliminating the need of ethylene or acetylene and external acetic acid, VAC can be produced from synthesis gas and methyl acetate which is the by-product of PVA.