硫化锌精矿焙烧矿的中性浸出渣常含有锗等有价元素，常规低酸高酸两段浸出流程锗的直收率低。
Neutral leaching residue of roasted zinc concentrate often contains germanium which is poorly recovered in conventional two-stage leaching.
介绍了锌系统焙砂浸出的工艺流程，操作条件，生产实践及技术改进。
This paper describes the technological process, operating conditions, production practice and technical improvement of calcine leaching in zinc circuit.
试验研究表明：该工艺流程简单易行，对环境污染小，金浸出率较高，具有推广价值。
This technology has simple flow path, less environmental pollution, high goldleaching rate and great value of popularization.
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