首页>
外国专利>
PROCEDURES FOR THE EXCHANGE OF IMPORTS FROM A ZINC SUMMARY
PROCEDURES FOR THE EXCHANGE OF IMPORTS FROM A ZINC SUMMARY
展开▼
机译:锌摘要中的进口交换程序
展开▼
页面导航
摘要
著录项
相似文献
摘要
This invention relates to a method for the removal of iron as hematite from a zinc sulphate solution in atmospheric conditions during the electrolytic preparation of zinc. According to the method, the pH of the iron-containing solution is adjusted to a value of at least 2.7, oxygen-containing gas is fed into the solution and part of the hematite thus formed is recirculated to the precipitation stage.
展开▼