Production method of elementary directly refining high purity antimony

Abstract

A direct refining method for preparing high-purity (6N) antimony includes such steps as proportionally adding raw antimony, slag-forming agent, covering agent, reducer, regulator and arsenical agent into MF induction furnace, smelting, vacuum volatilizing refining, vacuum distilling and monocrystal extracting.

Description

1. Technical field [0001] The invention relates to a production method for directly extracting high-purity antimony from elements, belonging to the technical field of metallurgy. 2. Background technology [0002] The resources of metal antimony are limited, and most of them are in a few countries in China, the United States and Africa: Chinese patent 85107329 discloses " antimony sulfide ore oxidation - hydrolysis method to prepare white (Sb 2 o 3 )", 87100682 disclosed "hydrochloric acid-ammonium salt hydrolysis wet antimony white production process", 87101216 disclosed "antimony ore wet direct production of antimony white new technology", 88103221.2 disclosed "plasma production of Sb 2 o 3 Ultrafine powder", 89102416.6 disclosed "a kind of Sb with high purity and high fineness produced by stibnite 2 o 3 The method of " and 92106908.1 disclosed " a kind of cubic crystal Sb 2 o 3 In addition, there are 96111221.2 disclosing the "New Process for the Direct Separation of...

AI Technical Summary

Problems solved by technology

Since As and Sb belong to the same group of elements and have similar physical properties, it is difficult to separate them; the separation of Pb and Fe is also a major problem in high-passive antimony metallurgy. Therefore, the preparation method of directly purifying high-purity antimony from elements is still under research.