Limonite is one of the main iron minerals. It is a brown natural multi-mineral mixture based on hydrous iron oxide. But its iron content is not high, it is a secondary iron ore.
A、Single sorting process: For ore with high iron content, it is usually handled by a simple single sorting process, including gravity beneficiation, strong magnetic separation and flotation.
B、Joint sorting process: magnetization roasting–magnetic separation process, flotation–strong magnetic process, gravity–strong magnetic process.