马铃薯淀粉渣制取草酸的研究  

Prearation of Oxalic Acid by Potato Starch Recidue

作　　者：杨德全[1] 王升文[1] 王俏[1] 许丽红 

机构地区：[1]延安大学化学系

出　　处：《延安大学学报（自然科学版）》1998年第1期34-37,共4页Journal of Yan'an University：Natural Science Edition

基　　金：陕西省教委专项科研基金

摘　　要：研究了以马铃薯淀粉渣为原料，采用水解一氧化的方法制取草酸的最佳反应条件：当用硫酸浸泡４ｈ，硝酸／淀粉渣质量比为２．３７—２．４５，氧化反应温度６５－７５℃，反应时间５—６ｈ，草酸二水合物收率＞６５％。该法工艺简单，成本低廉，有较高的经济和社会效益。The preparation method of axalic acid from hydrolysis-Oxidation by potato starch recidue was invesitigated and optimum reaction conditions were determined. Potato starch recidue is soaked in the sulphuric acid 4h. nitric acid and it′s quantity proportion is 2.37-2.45, reaction temperature is 65-75℃, reaction timeis 5-6h,at last, the yield of oxalic acid dihydrate was 65%. The method technology is simple, the cost is cheap, it′s economic and society benefit is higher.

关 键 词：马铃薯 淀粉渣 水解 氧化 乙二酸 制备 工艺 

分 类 号：TQ225.142[化学工程—有机化工] X710.5[环境科学与工程—环境工程]