废革屑碱水解条件的研究  

Study on the Alkaline Hydrolysis Process of Leather Shavings

作　　者：王杰兴[1] 许长通[1] 王旭[1] 王全杰[1,2] 

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：《西部皮革》2012年第14期14-17,共4页West Leather

摘　　要：首先分析了用NaOH、MgO、CaO和Na_2CO_3等4种碱以相同的碱用量在此条件下水解革屑,比较四种水解液的水解率、含氮量,研究它们水解革屑的差异性。用正交试验优化NaOH碱水解革屑的条件,得出最佳条件为NaOH用量7%,水解温度120℃,水解时间6h,固液比1∶9。Alkaline hydrolysis of leather shavings with NaOH, MgO, CaO and Na2C03 respectively were studied from the hydrolysis rate and nitrogen content under the same amount of alkali. The hydrolysis con- ditions for leather shaving with sodium hydroxide were optimized by orthogonal test.And the optimum con- ditions were obtained as follows：the dosage of sodium hydroxide was 7% ,hydrolytic temperature was 120 ~C, hydrolytic time was 6 h, and the solid-to-liquid ratio was 1：9.

关 键 词：革屑 碱水解 正交 

分 类 号：TS59[轻工技术与工程—皮革化学与工程]