摘要
以硫酸渣为原料,用黄铁矿粉作还原剂,采用湿式空气氧化法制备铁基颜料铁黄。试验得出的适宜工艺条件为:Fe2+浓度0.25～0.40mol/L,氧化温度70℃,用氢氧化钠或氨水调节反应液的pH,氧化过程溶液的pH控制在3～4。依照该工艺制得的铁基颜料铁黄,其各项指标符合HG/T2249—91标准。
A wet air oxidation process has been developed for preparation of ferrite yellow,one of ironbase pigments,from sulfuric acid slag used as raw material and pyrite powder used as reductant.The optimum process conditions determined by tests are as follows:Fe2+ concentration 0.25～0.40 mol/L,oxidation temperature 70℃,pH adjustment by NaOH or ammonia,solution pH 3～4 for oxidation.The quality of the ferrite yellow prepared by the process can meet the standard HG/T2249-91.
出处
《化工环保》
CAS
CSCD
北大核心
2003年第2期100-102,共3页
Environmental Protection of Chemical Industry
关键词
硫酸渣
铁黄
湿式空气氧化法
综合利用
sulfuric acid
ferrite yellow
wet air oxidation process
comprehensive utilization
