无机盐工业
主管:中海油天津化工研究设计院有限公司
主办:中海油天津化工研究设计院有限公司
   中海油炼油化工科学研究院(北京)有限公司
   中国化工学会无机酸碱盐专业委员会
ISSN 1006-4990 CN 12-1069/TQ

无机盐工业 ›› 2023, Vol. 55 ›› Issue (8): 84-90.doi: 10.19964/j.issn.1006-4990.2022-0612

• 综述与专论 • 上一篇    下一篇

青海氯化物型盐湖钾资源开发新进展与产业发展建议

李岩1(), 马珍2, 宋兴福2,3()   

  1. 1.青海省科技厅高新处, 青海 西宁 810000
    2.青海盐湖工业股份有限公司, 青海格尔木 816000
    3.华东理工大学国家盐湖资源综合利用工程技术中心, 上海 200237
  • 收稿日期:2022-10-14 出版日期:2023-08-10 发布日期:2023-08-25
  • 通讯作者: 宋兴福,教授,主要从事盐湖钾镁资源利用开发;E-mail:xfsong@ecust.edu.cn
  • 作者简介:李岩(1979— ),青海省科技厅高新技术处处长,主要从事资源管理与开发规划;E-mail:mzss1999@163.com
  • 基金资助:
    青海省企业研究转化与产业化专项(2022-GX-C14);青海省昆仑英才高端创新人才计划项目

New development advance and industrial development proposals of chloride-type salt lake potassium resources in Qinghai

LI Yan1(), MA Zhen2, SONG Xingfu2,3()   

  1. 1.Qinghai Department of Science and Technology,Xining 810000,China
    2.Qinghai Salt Lake Industry Co. Ltd. ,Geermu 816000,China
    3.National Engineering Research Center for Integrated Utilization of Salt Lake Resource,East China University of Science and Technology,Shanghai 200237,China
  • Received:2022-10-14 Published:2023-08-10 Online:2023-08-25

摘要:

中国钾资源匮乏,钾肥供给事关农业粮食安全。青海已建成全国重要且最大的氯化钾生产基地,如何可持续开发利用钾资源,是保障国家钾肥供给安全的关键。列举了青海盐湖钾资源状况,介绍了近年来青海氯化物型盐湖钾资源勘探与开采的研究进展,总结了冷分解-正浮选、冷结晶-正浮选和反浮选-冷结晶三种主流工艺的技术进展,并对青海盐湖钾资源未来保障供给的关键技术发展趋势进行了展望,包括深部钾资源勘探、现有钾资源高效利用、中西部硫酸镁亚型盐湖钾资源有效开发、贫杂钾矿资源高效开采与技术等。

关键词: 盐湖钾资源, 氯化钾, 浮选, 结晶

Abstract:

Potassium resources are scarce in China and the supply of potash fertilizer concerns the security of agricultural food.An important and largest production base of potassium chloride has been built in Qinghai,China.How to develop and utilize potassium resources sustainably is crucial to ensure the security of the national potash fertilizer supply.The salt lake potassium resources status in Qinghai was listed,the chloride type of salt lake potassium resources research advances of Qinghai in exploration and exploitation in recent years were introduced,and technological improvement of three kinds of the main flowsheet were summarized,including cold decomposition-direct flotation,cold crystallization-direct flotation,and reverse flotation-cold crystallization.Moreover,the key technology development tendency of salt lake potassium resources future guaranteeing supply of Qinghai was prospected,which included the deep exploration of potassium resources,efficient utilization of potassium resources,and effective exploitation of middle-western magnesium sulfate subtype salt lakes potassium resources and efficient exploitation technology of poor mixed potassium ore resources,etc.

Key words: salt lake potassium resources, potassium chloride, flotation, crystallization

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