铬革渣资源化处理研究 Ⅱ.由铬革渣提取蛋白质和铬(Ⅲ)  

RECLAMATION TREATMENT OF THE SCRAPS OF CHROME LEATHER Ⅱ. Extraction of Protein and Cr (Ⅲ) from the Scraps of Chrome Leather

作　　者：蒋挺大[1] 

机构地区：[1]中国科学院生态环境研究中心

出　　处：《环境科学学报》1989年第3期346-351,共6页Acta Scientiae Circumstantiae

摘　　要：铬革渣是制革工业废弃物,经碱水解脱铬提取蛋白质.蛋白质与作为载体的糠麸混合,烃干燥后粉碎,制成饲料蛋白粉.剩余的碱性滤渣用硫酸提取硫酸铬,该盐可作为铬鞣剂,提铬后的酸性滤渣可用作花肥.A procedure for extraction of protein and Cr (Ⅲ) from the scraps of chrome leather from leather industry was suggested. The scraps were hy-drolyzed under basic condition to remove chromium compound and then extracted to remove proteins. The proteins extracted were mixed with bran and used as feed protein after drying and powdering. The basic residue was treated with sulfuric acid for obtaining chrome (Ⅲ) sulfate that can be used as tanning agent again and the acidic residue become flower fertilizer.

关 键 词：铬 皮革 蛋白 

分 类 号：X794.05[环境科学与工程—环境工程]