Synthesis of long alkyl chain ethers through etherification of ethylene glycol with 1-octene using heteropolyacid supported on K-10 clay
作者:Ganapati D. Yadav、Suraj O. Katole、Ajay K. Dalai
DOI:10.1016/j.apcata.2014.02.017
日期:2014.5
of glycerol can produce 1,2-propylene glycol, 1,3-propylene glycol, and ethylene glycol; all of which can be further converted into valuable chemicals. The objective of the current work was to convert ethylene glycol to value added etherified products by reaction with 1-octene to 2-(octan-2-yloxy) ethanol (C8 ether) and 1,2-bis(octan-2-yloxy) ethane (C16 ether). Several heterogeneous solid acid catalysts
植物油与低级醇的酯交换反应会形成生物柴油,并伴有约10 wt%的甘油副产物。由于生物柴油在世界范围内正在大规模生产,因此将有大量的剩余甘油可用。应将生物甘油转化为有价值的化学物质和燃料,以使生物柴油相对于石油柴油具有成本竞争力。取决于反应条件和催化剂,甘油的氢解/氢化可产生1,2-丙二醇,1,3-丙二醇和乙二醇;所有这些都可以进一步转化为有价值的化学物质。当前工作的目标是通过与1-辛烯反应生成2-(辛烷-2-基氧基)乙醇(C8醚)和1,2-双(辛烷-2-基氧基)的反应将乙二醇转化为增值醚化产物乙烷(C16醚)。2.5 H 0.5 PW 12 O 40 / K10(Cs-DTP / K10),20%(w / w)DTP / ZrO 2和Amberlyst-35。其中发现20%(w / w)DTP / K10是最有效的催化剂,乙二醇转化率为72%,对2-(辛烷-2-基氧基)乙醇(C8醚)的选择