摘  要:铟是一种用途广泛的金属，从铅烟尘中提炼铟是生产铟的重要途径。铅烟尘用硫酸浸出，浸出液采用三级萃取，萃取剂为30%-P204-煤油，负载有机相用1mol/L H2SO4,四级反萃铟，反萃铟后的有机相用6mol/L HCl,三级反萃Fe，为防止有机相中夹带Cl-,在有机相的循环过程中至使浸出液中Cl-富集，影响萃取率，反萃铁后的有机相用一级洗涤后返回萃取。反萃铟后的反萃液用锌板置换即可得海绵铟。根据已知数据进行物料平衡计算，由工艺流程图选择和确定车间设备，确定主要设备的尺寸，并对关键设备进行设计。

　　本设计主要是通过对提炼粗铟车间中的萃取设备的设计，从而提高铟提取过程的生产效率，从而达到经济、高效、可靠和易操作的生产要求。最后根据工艺流程图画出详细的车间平面图及设备连接图，在此基础进行设计。

关键词：铟；车间；设计

ABSTRACT:Indium is a widely used metal, indium extracted from lead dust is an important way to the prduction of indium. Using sulfuric acid leaching of lead dust, three-stage leaching solution the extraction agent is 30%-P204-kerosene, loaded organic phase by using 1mol / L, four back-extraction of indium, indium, after stripping the organic phase with 6 mol/L HCl, three stripping Fe, in order to prevent entrainment of organic phase, Cl-, in the organic phase of the cycle to the leaching solution in the Cl-rich, affecting the extraction rate, after stripping the organic phase of iron after washing with a back extraction. After back-extraction of indium zinc plates stripping solution can be surface replacement of indium. According to known data for material balance calculations, determined by the flow chart of selection and workshop equipment, facilities and equipment to determine the size, design and key equipment.

　　This paper is to refine crude indium by extraction equipment in the workshop designed to improve the production efficiency of indium extraction process to achieve economic, efficient, reliable and easy operation of the production requirements.Finally, according to a detailed process plant layout drawings and equipment connection diagram, the design on this basis.

Keywords: Indium；workshop；design