锂辉石连续生产碳酸锂工艺的设计与模拟  

Design and Simulation of Continuous Production Process of Lithium Carbonate from Spodumene

作　　者：彭艳枚 杨万典 易峦[1] 段晓影 刘奕祺 彭诗樱 张丽芬[1] PENG Yanmei;YANG Wandian;YI Luan;DUAN Xiaoying;LIU Yiqi;PENG Shiying;ZHANG Lifen(Changsha Research Institute of Mining and Metallurgy Co.,Ltd.,Changsha 410012,Hunan,China)

机构地区：[1]长沙矿冶研究院有限责任公司,湖南长沙410012

出　　处：《矿冶工程》2025年第1期113-117,共5页Mining and Metallurgical Engineering

基　　金：中国五矿集团有限公司-科技专项计划“揭榜挂帅”项目(2022—2023年度)。

摘　　要：研究了基于锂辉石转型焙烧和硫酸化焙烧生产碳酸锂的锂辉石连续化生产工艺。运用AspenPlus软件对生产过程进行全流程模拟计算,优化参数为:H_(2)SO_(4)/Li_(2)O物质的量比1.1、浸出液固比2.0、沉锂温度85℃,该参数条件下最终获得纯度(质量分数)99.55%的碳酸锂产品,锂回收率为87.7%,天然气、纯水和蒸汽等能源的消耗量分别为单位碳酸锂产品量的0.42、6.64和0.72倍。A process for continuous producing lithium carbonate from spodumene was presented based on the processing technique including converting natural spodumene intoβ-spodumene for roasting,and sulphation roasting.Aspen Plus software was adopted to simulate the whole production process,with the parameters optimized as follows:H_(2)SO_(4) and Li_(2)O in a molar ratio of 1.1,liquid-solid ratio of 2.0,and temperature for lithium precipitation at 85℃.Under the above conditions,lithium carbonate product can be finally produced with purity of 99.55%(in a mass fraction),presenting lithium recovery rate at 87.7%.The energy consumption of natural gas,pure water and steam is 0.42,6.64 and 0.72 per unit of lithium carbonate product respectively.

关 键 词：锂辉石 碳酸锂 Aspen模拟 硫酸化焙烧 连续化生产 

分 类 号：TF111[冶金工程—冶金物理化学]