2,3-Butanediol dehydration catalyzed by silica-supported sodium phosphates
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- 作者：Wooyoung Kim ; Wookyun Shin ; Kyoung Jun Lee ; Hyohak Song ; Hyung Soon Kim ; Doyoung Seung ; Igor N. Filimonov ; FLM@gscaltex.co.kr" class="auth_mail" title="E-mail the corresponding author ; infilimonov@gmail.com" class="auth_mail" title="E-mail the corresponding author
- 关键词：Actn ; acetoin (3-hydroxybutanone) ; BA ; benzoic acid ; BD ; 1 ; 3-butadiene ; BDO ; 2 ; 3-butanediol ; BDOn ; 2 ; 3-butanedione ; 1-BT ; 1-butene ; 2-BT ; 2-butene ; 3B2OL ; 3-buten-2-ol ; CA ; crotyl alcohol (cis- ; trans-) ; 2M2P1OL ; 2-methyl-2-propen-1-ol (isobutenyl alcohol) ; IBA ; isobutyraldehyde (2-methylpropanal) ; MEK ; methyl ethyl ketone (2-butanone) ; Py ; pyridine ; 1.82Na_P/SiO2_9.4 ; silica supported sodium phosphate having ratio Na/P 1.82 (mol/mol) and 9.4 ; wt.% of sodium phosphate phases ; E/R ; eliminatio
- 刊名：Applied Catalysis A: General
- 出版年：2016
- 出版时间：5 February 2016
- 年：2016
- 卷：511
- 期：Complete
- 页码：156-167
- 全文大小：1496 K
文摘
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Silica-supported sodium phosphates show excellent activity and stability in the dehydration of 2,3-butanediol.
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Product pattern depends on contact times and Na/P ratio.
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For a long contact time 1,3-butadiene and 2-butanone are dominating; for a short one—3-butene-2-ol and 2-butanone.
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The highest (3–3.8) {butadiene+3-butene-2-ol}/2-butanone ratios are observed for the catalysts having Na/P ratios within 1.8–2.
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Balance of the acidic and basic sites depends on Na/P ratio. The highest values of the acid/base density ratio correspond to 1.5 < Na/P < 2.