摘要
采用自制的分散态焙烧炉,对硫含量1.61%的高硫铝土矿进行焙烧脱硫。考察脱硫效果随焙烧温度和时间的变化规律,并探讨了焙烧脱硫的机理。结果表明,在650℃焙烧120s时,分散态焙烧可以实现76.98%的脱硫率,焙烧矿残硫为0.07%,延长焙烧时间或升高温度对提高脱硫率帮助不大。
High-sulfur bauxite bearing 1.61% S was desulfured by roasting in self-made dispersion state roasting furnace. Effects of roasting time and temperature on desulfurization efficiency were investigated, and desulfurization mechanism was discussed. The results show that desulfurization efficiency is 76.98% with 0.07% sulfur residue in roasted bauxite after dispersion roasting at 650 ℃ for 120 s. Higher temperature or longer time have few effects on improvement of desulfurization efficiency.
出处
《有色金属（冶炼部分）》
CAS
北大核心
2016年第3期19-21,25,共4页
Nonferrous Metals（Extractive Metallurgy)
基金
国家科技支撑计划项目(2012BAA08B00)
关键词
高硫铝土矿
分散态焙烧
脱硫率
脱硫速率
high-sulfur bauxite
dispersion roasting
desulfurization efficiency
desulfurization rate
