某化学镀镍废液的镍磷回收研究  

Study on the Recovery of Nickel and Phosphorus from a Certain ElectrolessPlating Waste Liquid

作　　者：黄昱霖 黄智源 查正炯 李扬 Huang Yulin;Huang Zhiyuan;Zha Zhengjiong;Li Yang(Technical Center,Cosmo Environmental Technology Co.,Ltd.,Guangzhou 510535,China)

机构地区：[1]广州科城环保科技有限公司技术中心,广东广州510535

出　　处：《广东化工》2020年第18期133-134,116,共3页Guangdong Chemical Industry

摘　　要：某化学镀镍废液中含有硫酸镍和次亚磷酸钠,利用离子交换树脂去除其中的镍,再用硫酸铁溶液沉淀出磷酸铁二水合物。本研究主要考察了反应加料方式、双氧水用量、反应pH、反应温度、干燥方式等对反应的影响。研究表明:反应加料方式为并流进料,双氧水与废液比例为10%,反应pH为1.1~1.5,反应温度20~35℃,70~80℃鼓风干燥箱烘干,可以得到颗粒较好且不变质的磷酸铁。A certain electroless nickel plating waste liquid contains nickel sulfate and sodium hypophosphite.Ion exchange resin is used to remove the nickel,and then ferric sulfate solution is used to precipitate iron phosphate dihydrate.This study mainly investigated the influence of reaction feeding method,hydrogen peroxide dosage,reaction pH,reaction temperature,drying method,etc.on the reaction.Studies have shown that it can obtain iron phosphate with better particles and no deterioration if the reaction feeding method is co-current feeding,the ratio of hydrogen peroxide to waste liquid is 10%,the reaction pH is 1.1~1.5,the reaction temperature is 20~35℃,and the blast drying oven is dried at 70~80℃.

关 键 词：化学镀镍废液 正磷酸铁 资源化利用 

分 类 号：TQ[化学工程]