Process for the preparation of methacrylic acid of high purity and method for purifying a stream of MAA containing hiba in a purification process

公开/公告号BRPI0402404B1

专利类型

公开/公告日2014-09-16

原文格式PDF

申请/专利号BR2004PI02404

申请日2004-06-17

分类号B01D3/14;C07C57/07;C07C51/42;C07C51/44;C07C51/487;C07C51/50;C07C57/04;C07C59/42;C07C67/54;C07C69/54;

国家 BR

入库时间 2022-08-21 15:58:38