摘要
采用工业硫酸分解菱锌矿,经过滤,氧化除铁,置换除铁,蒸发浓缩,冷却结晶和离心脱水,可制得砷、铅、镉含量很低,质量符合标准的高级农用七水硫酸锌。
The high-grad agriculture zinc vitrol that contains very
little arsenic,lead and cadmium,its guality is up to is produced by sim-
thonate by inetustry sulphuric acid,after tilter,remove iron by oxidize,
remore cadrnium by displacement,vapour concentrate,cooling crystall
ize and centrifugal dehydration.
出处
《成都大学学报（自然科学版）》
1989年第2期32-35,47,共5页
Journal of Chengdu University（Natural Science Edition）
关键词
硫酸锌
菱锌矿
Zinc sulphate
Simthonate
