{"id":1302,"date":"2021-04-29T16:08:16","date_gmt":"2021-04-29T14:08:16","guid":{"rendered":"https:\/\/nicl.it\/new\/?p=1302"},"modified":"2022-01-08T21:16:45","modified_gmt":"2022-01-08T19:16:45","slug":"homogeneous-catalysis-and-heterogeneous-recycling-a-simple-znii-catalyst-for-green-fatty-acid-esterification","status":"publish","type":"post","link":"https:\/\/nicl.it\/new\/homogeneous-catalysis-and-heterogeneous-recycling-a-simple-znii-catalyst-for-green-fatty-acid-esterification","title":{"rendered":"Homogeneous Catalysis and Heterogeneous Recycling: A Simple Zn(II) Catalyst for Green Fatty Acid Esterification"},"content":{"rendered":"<p><a href=\"https:\/\/doi.org\/10.1021\/acssuschemeng.1c01140\">Homogeneous Catalysis and Heterogeneous Recycling: A Simple Zn(II) Catalyst for Green Fatty Acid Esterification<\/a><\/p>\n<p>Massimo Melchiorre, Maria Elena Cucciolito, Martino Di Serio, Francesco Ruffo, Oreste Tarallo, Marco Trifuoggi, and Roberto Esposito<\/p>\n<p><span class=\"cit-title\"><i>ACS Sustainable Chem. Eng.<\/i><\/span>\u00a0<span class=\"cit-year-info\">2021 <a href=\"https:\/\/doi.org\/10.1021\/acssuschemeng.1c01140\">https:\/\/doi.org\/10.1021\/acssuschemeng.1c01140\u00a0<\/a> \u00a0<\/span><\/p>\n<p><strong>Abstract<\/strong><\/p>\n<p>This work describes the use of simple zinc(II) salts (ZnCl<sub>2<\/sub>, ZnCO<sub>3<\/sub>, Zn(OAc)<sub>2<\/sub>, ZnO, Zn(ClO<sub>4<\/sub>)<sub>2<\/sub>, Zn(TfO)<sub>2<\/sub>, and Zn(BF<sub>4<\/sub>)<sub>2<\/sub>) as effective catalysts for the esterification of fatty acids with long-chain alcohols and simple polyols through a homogeneous system that allows the gradual and selective removal of water. The results show that the catalytic activity depends on the nature of the counterion: the most effective are the salts with poorly coordinating anions (perchlorate and triflate) or containing basic Br\u00f8nsted anions (oxide, acetate, and carbonate). However, only with the latter is it possible to fully recover the catalyst at the end of each run, which is easily filtered in the form of zinc carboxylate, given its insolubility in the ester produced. In this way, it is possible to recycle the catalyst numerous times, without any loss of activity. This beneficial prerogative couples the efficiency of the homogeneous catalysis with the advantage of the heterogeneous catalysis. The process is, therefore, truly sustainable, given its high efficiency, low energy consumption, ease of purification, and the absence of auxiliary substances and byproducts.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Homogeneous Catalysis and Heterogeneous Recycling: A Simple Zn(II) Catalyst for Green Fatty Acid Esterification Massimo Melchiorre, Maria Elena Cucciolito, Martino Di Serio, Francesco Ruffo, Oreste Tarallo, Marco Trifuoggi, and Roberto Esposito ACS Sustainable Chem. Eng.\u00a02021 https:\/\/doi.org\/10.1021\/acssuschemeng.1c01140\u00a0 \u00a0 Abstract This work describes the use of simple zinc(II) salts (ZnCl2, ZnCO3, Zn(OAc)2, ZnO, Zn(ClO4)2, Zn(TfO)2, and Zn(BF4)2) [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":1303,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[17],"tags":[],"class_list":["post-1302","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-publications"],"acf":[],"_links":{"self":[{"href":"https:\/\/nicl.it\/new\/wp-json\/wp\/v2\/posts\/1302","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/nicl.it\/new\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/nicl.it\/new\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/nicl.it\/new\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/nicl.it\/new\/wp-json\/wp\/v2\/comments?post=1302"}],"version-history":[{"count":1,"href":"https:\/\/nicl.it\/new\/wp-json\/wp\/v2\/posts\/1302\/revisions"}],"predecessor-version":[{"id":1304,"href":"https:\/\/nicl.it\/new\/wp-json\/wp\/v2\/posts\/1302\/revisions\/1304"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/nicl.it\/new\/wp-json\/wp\/v2\/media\/1303"}],"wp:attachment":[{"href":"https:\/\/nicl.it\/new\/wp-json\/wp\/v2\/media?parent=1302"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/nicl.it\/new\/wp-json\/wp\/v2\/categories?post=1302"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/nicl.it\/new\/wp-json\/wp\/v2\/tags?post=1302"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}