蒙脱土负载金属离子固体酸催化木糖转化为糠醛的方法

• Format: Patent
• Language: Chinese
• Published: 06.03.2018
• Subjects: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMISTRY; CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; HETEROCYCLIC COMPOUNDS; METALLURGY; ORGANIC CHEMISTRY; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; THEIR RELEVANT APPARATUS; TRANSPORTING

本发明公开了蒙脱土负载金属离子固体酸催化木糖转化为糠醛的方法，属于固体酸催化技术领域。包括以下步骤：共沉淀法制备固体酸催化剂；在反应釜中加入负载金属离子的固体酸催化剂催化转化木糖为糠醛；反应结束后，冷却，抽滤，反应液与催化剂分离。该催化剂具有催化效率高、可再生、能够循环利用等优点，在单相体系的条件下，能够将木糖高效转化成糠醛。本发明制备方法具有工艺条件温和、能耗低、制备方法简易等优点，反应过程中避免了无机酸对反应釜设备的腐蚀，是种环境友好型的催化剂。 The present invention discloses a method for catalytic conversion of xylose into furfural by use of a montmorillonite-supported metal ion solid acid, and belongs to the technical field of solid acid catalyst. The method comprises the following steps: preparing a solid acid catalyst by a coprecipitation method; adding the metal-ion-supported solid acid catalyst into a reaction kettle for catalytic conversion of xylose to furfural; after the completion of the reaction, cooling, filtering by suction, and separating a reaction solution and the catalyst. The catalyst has the advantages of being high in catalytic efficiency, renewable, recyclable, and the like, and under the condition of a single-phase system, the catalyst can efficiently convert xylose into furfural. The preparation method