高钙油田卤水富锂工艺研究

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英文篇名：Research on Li~+ enriching technology in oilfield brine with high Ca~(2+) 作者：潘磊 ; 李龙涛 ; 唐耀春 英文作者：Pan Lei;Li Longtao;Tang Yaochun;Zhejiang Administration of Coal Geology the First Team of Exploration;The Seventh Geological Mineral Resources Exploration Institute of Qinghai Province; 关键词：油田卤水 ; 钙 ; 锂 ; 碳酸锂 英文关键词：oilfield brine;;calcium;;lithium;;lituium carbonate 中文刊名：WJYG 英文刊名：Inorganic Chemicals Industry 机构：浙江煤炭地质局勘探一队;青海省第七地质矿产勘查院; 出版日期：2019-02-10 出版单位：无机盐工业 年：2019 期：v.51;No.363 语种：中文; 页：WJYG201902011 页数：3 CN：02 ISSN：12-1069/TQ 分类号：48-50

摘要

油田卤水中含有丰富的锂元素。目前,各高新技术领域对碳酸锂原料的需求量日益增长。分别采用兑卤和冷冻结晶/芒硝兑卤复合工艺除去某油田卤水中的Ca~(2+),再用纯碱沉锂制备碳酸锂。实验结果表明:冷冻结晶/芒硝兑卤工艺去除卤水中Ca~(2+)的效果较冷冻结晶工艺佳,冷冻结晶/兑卤复合工艺从高钙油田卤水中制备所得碳酸锂中主含量可达96.73%(质量分数)。
        Oilfield brine is abundant with Li~+element,and the demand for Li_2 CO_3 raw material is increasing in various high and technology fields at present.Mirabilite mixing brine and freezing crystallization/mirabilite mixing brine composite technology were applied respectively to remove Ca~(2+)in oilfield brine,then Li_2 CO_3 was prepared with soda. Result showed that freezing crystallization/mirabilite mixing brine composite technology achieved better effect to remove Ca~(2+),and main content of Li_2 CO_3 could reach 96.73%(mass fraction) in the product made by freezing crystallization/mirabilite mixing brine composite technology.

引文

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