5-羟甲基糠醛制备生物基己二酸的研究进展

Research progress in preparation of bio-based adipic acid from 5-hydroxymethylfurfural

以5-羟甲基糠醛为原料制备生物基己二酸,可以避免以石油化工产品为原料制备己二酸工艺中存在的设备腐蚀、环境污染等问题,是更为绿色、环境友好的生产路线。5-羟甲基糠醛选择性氧化制备2,5-呋喃二甲酸是制备生物基己二酸的第一步,目前的研究主要围绕负载型贵金属(铂、金、钯、钌)催化剂展开,制备在无需外加碱的条件下能高效、稳定催化氧化反应的催化剂是该研究的发展方向。由2,5-呋喃二甲酸加氢制备2,5-二羧酸四氢呋喃,再加氢脱氧制备己二酸是制备生物基己二酸的第二步,可以采用两步法或一步法,开发高活性、高选择性的催化剂以促进四氢呋喃环断裂开环,是提高己二酸收率的关键。

The production technology of bin-based adipic acid from 5-hydroxymethylfurfural is more green and environment friendly than the petroleum-based technological route in the aspects of equipment corrosion and environment pollution, The first step of bin-based adipie acid preparation is the selective oxidation of 5-hydroxymethylfurfural into 2,5-furandicarboxylic acid. The current researchis focused on the development of supported noble metals （platinum, aurum, palladium, ruthenium） catalysts. And the development trend is the preparation of catalysts with high efficiency and stability in the absence of additional alkali. The second step of bin-based adipic acid preparation is the hydrogenation of 2,5-furandicarboxylie acid into tetrahydrofuran-2,5-dicar- boxylic acid prior to re-hydrogenation and deoxidation by two-step or one-step process. The key to raise the yield of adipic acid is the application of high-activity high-selectivity catalysts to promote the breaking and opening of tetrahvdrofuran ring.