Fine Chemicals from Lignosulfonates. 1. Synthesis of Vanillin by Oxidation of Lignosulfonates
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- 作者：Hans-René ; Bj
//pubs.acs.org/images/gifchars/oslash.gif" border="0">rsvik and Francesco Minisci
- 刊名：Organic Process Research & Development
- 出版年：1999
- 出版时间：September 1999
- 年：1999
- 卷：3
- 期：5
- 页码：330 - 340
- 全文大小：330K
- 年卷期：v.3,no.5(September 1999)
- ISSN：1520-586X
文摘
The oxidation of lignosulfonates (LS) to vanillin by persulphate,oxygen, and a variety of catalytic systems has been investigated.Cobalt and copper catalysts appeared to be the most effectivein the oxidation by oxygen. An investigation where multivariatemathematical and statistical design and modelling have beenused for the process optimisation has led to the developmentof a multivariate mathematical model which describes theoxidation process with high predictive capacity. By using thismodel, an increase of the vanillin yield from 4.1% of the currentprocedure to 7.2% is obtained, this corresponding to 75%relative improvement of the yield.