利用废弃含铬革屑制备工业蛋白粉的工艺探究  

Study on the Process of Preparing Industrial Protein Powder from Waste Chrome-Containing Shavings

作　　者：丁凡 纪翔辉 段宝荣[1] 王全杰[1,2] DING Fan;JI Xiang-hui;DUAN Bao-rong;WANG Quan-jie(College of Chemistry and Chemical Engineering,Yantai University,Yantai 264005,China;State Leather Technology Research Development Center,Yantai 264005,China)

机构地区：[1]烟台大学化学化工学院,山东烟台264005 [2]国家制革技术研究推广中心,山东烟台264005

出　　处：《皮革与化工》2020年第5期10-15,20,共7页Leather And Chemicals

摘　　要：使用酸碱联合法处理含铬革屑,在15%的硫酸预浸泡24h后,使用氧化钙与氢氧化钠在液固比为6、水解温度为95℃的条件下水解10 h,制备出的胶原蛋白粉中水分含量为4.60%、灰分含量为4.59%、粗蛋白含量为89.38%、含铬量为16 mg/kg,达到工业蛋白粉的使用标准。As the treatment of chrome-containing leather shavings with acid-base combination method,after pre-soaked in 15%sulfuric acid for 24h,using calcium oxide and sodium hydroxide to hydrolyze for 10h under the conditions of liquid-solid ratio of 6 and hydrolysis temperature of 95℃,the moisture content of the prepared collagen powder is 4.60%and the ash content is 4.59%.The crude protein content is 89.38%,and the chromium content is 16 mg/kg,which meets the standard of industrial protein powder.

关 键 词：酸碱联合法 含铬革屑 工业蛋白粉 

分 类 号：TS59[轻工技术与工程—皮革化学与工程]