一种铬泥处理制备再生铬粉探索  

A Study on the Preparation of Recycled Chromium Powder from Chromium Sludge Treatment

作　　者：王绍腾 龙忠珍 陈治军 单志华[1] WANG Shaoteng;LONG Zhongzhen;CHEN Zhijun;SHAN Zhihua(National Engineering Research Center of Clean Technology in Leather Industry,Sichuan University,Chengdu 610065,China;Jiangsu Hongfeng Resource Recycling Research Institute,Xuzhou 200211,China)

机构地区：[1]四川大学制革清洁技术国家工程研究中心,四川成都610065 [2]江苏鸿丰资源循环利用研究院,江苏徐州200211

出　　处：《皮革科学与工程》2021年第4期35-39,45,共6页Leather Science and Engineering

基　　金：基于污泥低铬及可循环利用(18H1173)。

摘　　要：采用酸浸及酸浸-H2O2的方法处理鞣革污泥后喷雾干燥制备再生铬鞣剂A-CP与AH-CP。实验结果表明,以酸浸-H2O2方法得到的AH-CP的表观颜色相对与直接酸溶的A-CP偏绿,水不溶物含量有所减少,且水解性能与金山铬粉T-AB接近。鞣制试验表明,AH-CP鞣革性能良好;蓝湿革色度色差分析表明,经AH-CP鞣制革颜色暗沉的现象有所改善,接近T-AB鞣制革;3种蓝湿革的Ts及物理力学性能均可达到鞋面用皮革标准。In this paper,the regenerated chrome tanning agent A-CP and AH-CP were prepared by spray drying after the treatment of tanning sludge with acid leaching and acid leaching-H2O2 methods,respectively.The experimental results showed that the apparent color of AH-CP obtained by the acid leaching-H2O2 method was greenish compared with the direct acid-soluble A-CP,and the content of water insoluble matter was reduced,and the hydrolysis performance was close to that of Jinshan chrome powder T-AB.The tanning test shows that AH-CP has good tanning performance;the colorimetric color difference analysis of wet blue leather shows that the color of the AH-CP tanned leather is improved and close to the T-AB tanned leather;the Ts and physical mechanical properties of three kinds of wet blue leather can meet the standard for shoe upper leather.

关 键 词：含铬污泥 酸处理 H_(2)O_(2) 喷雾干燥 铬鞣剂 

分 类 号：X794[环境科学与工程—环境工程]