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...