在多晶态 ZrO2 上通过缩合生物乳酸高效生产 2,3-戊二酮

IF 9.2 1区 化学 Q1 CHEMISTRY, MULTIDISCIPLINARY
Green Chemistry Pub Date : 2024-07-15 DOI:10.1039/d4gc02097a
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引用次数: 0

摘要

由于人们越来越重视使用生物基化学品而非石化产品,预计未来几年对发酵基化学品的需求将有所增长。原油价格的不断上涨和人们对碳排放的日益关注是推动向生物基化学品转变的主要原因。2,3-戊二酮就是这样一种高价值的精细化学品,目前通过多级化学合成或从牛奶废料中提取的方法只能少量生产。在这里,我们报告了一条在多晶态 ZrO2 上直接从粗乳酸气相缩合生产 2,3-戊二酮的绿色路线。该催化剂在将原料乳酸直接缩合为 2,3-戊二酮的过程中表现出高选择性、高活性和高稳定性,在 325 °C 的温度下实现了 99.7% 的 LA 转化率和 95.5% 的选择性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Highly efficient production of 2,3-pentanedione from condensation of bio-derived lactic acid over polymorphic ZrO2†

Highly efficient production of 2,3-pentanedione from condensation of bio-derived lactic acid over polymorphic ZrO2†

Highly efficient production of 2,3-pentanedione from condensation of bio-derived lactic acid over polymorphic ZrO2†

The demand for fermentation-based chemicals is expected to grow in the coming years because of the increasing emphasis on using bio-based chemicals over petrochemicals. Growing crude oil prices and rising concerns about carbon discharge are the main reasons pushing the shift toward bio-based chemicals. 2,3-Pentanedione is one such high-value fine chemical that is currently produced in smaller quantities through a multi-stage chemical synthesis or extracted from milk waste. Here we report a green route to produce 2,3–pentanedione directly from vapour-phase condensation of crude lactic acid over polymorphic ZrO2. The catalyst exhibits high selectivity, activity and stability for the direct condensation of raw lactic acid to 2,3-pentanedione and achieved 99.7% LA conversion and 95.5% selectivity at 325 °C.

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来源期刊
Green Chemistry
Green Chemistry 化学-化学综合
CiteScore
16.10
自引率
7.10%
发文量
677
审稿时长
1.4 months
期刊介绍: Green Chemistry is a journal that provides a unique forum for the publication of innovative research on the development of alternative green and sustainable technologies. The scope of Green Chemistry is based on the definition proposed by Anastas and Warner (Green Chemistry: Theory and Practice, P T Anastas and J C Warner, Oxford University Press, Oxford, 1998), which defines green chemistry as the utilisation of a set of principles that reduces or eliminates the use or generation of hazardous substances in the design, manufacture and application of chemical products. Green Chemistry aims to reduce the environmental impact of the chemical enterprise by developing a technology base that is inherently non-toxic to living things and the environment. The journal welcomes submissions on all aspects of research relating to this endeavor and publishes original and significant cutting-edge research that is likely to be of wide general appeal. For a work to be published, it must present a significant advance in green chemistry, including a comparison with existing methods and a demonstration of advantages over those methods.
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