资源与产业 ›› 2016, Vol. 18 ›› Issue (2): 44-47.DOI: 10.13776/j.cnki.resourcesindustries.20160316.001

• 资源开发 • 上一篇    下一篇

老挝钾盐资源现状及对策建议

朱延浙1,吴军2,严城民1   

  1. (1云南地矿国际矿业股份有限公司,云南昆明650051;2云南省地质矿产勘查开发局,云南昆明650011)
  • 出版日期:2016-04-20 发布日期:2016-04-20

ACTUALITY OF AND APPROACHES TO LAOS'S POTASH RESOURCES

ZHU Yan-zhe1, WU Jun2, YAN Cheng-min1   

  1. (1Yunnan Geology and Minerals International Mining Ltd., Kunming 650051, China; 2Yunnan Bureau of Geology and Minerals Development, Kunming 650011, China)
  • Online:2016-04-20 Published:2016-04-20

摘要: 钾盐矿是老挝的优势矿产资源之一,主要分布于老泰边界湄公河沿岸的平原地带。钾盐矿的主矿体呈层状产于塔贡组下段膏盐岩亚段(E1tg1-1)上部,为海源陆生矿床。中国企业在老挝已探获氯化钾(KCl)资源/储量40亿t,远景资源量大于100亿t。中国企业已建成氯化钾生产装置,总产能达到77万t/a,远景发展规模将达715万t/a 。中国企业在老挝勘查开发钾盐中存在的主要问题有:1)拥有的矿业权分布范围广、面积大;2)勘查程度过高,探获的氯化钾(KCl)资源储量大、服务年限长,光卤石型矿石的生产工艺尚未成熟,钾盐开发投资大、成本高、投资返本周期长,以及能源供给对钾盐开发的影响。据此提出以下建议:1)压缩钾盐的地质勘查投资;2)适度控制钾盐矿产的开发规模;3)注意钾盐产品的供求关系变化;4)加强钾盐开发工艺的技术革新;5)加强伴生溴元素的综合利用;6)努力寻找钾石盐型钾盐矿床;7)注意泰国寻找钾盐矿后引起的钾盐供求关系变化;8)积极申报煤炭资源区块、探获资源储量。

关键词: 老挝, 钾盐矿床, 开发现状, 对策建议

Abstract: Laos possesses abundant potash resources, which are mainly distributing along the Mekong river plain. The potash bed is hosted in the upper E1tg1-1, a marinesourced continental deposit. Chinese mining companies acquired KCl resource of 4 billion tons by exploration, with over 10 billion tons in inferred resource, also set up processing facilities for producing KCl with a capacity of 770kt/a, up to 7 150kt/a for future planning. Issues in Laos's potash exploration and development chiefly include large mining license area, over exploration, large KCl reserve, long term mining life, but the processing carnallite is not a mature technology. The large investment, high cost and long pay back and shortage of energy impact potash development. This paper presents suggestions in diminishing exploration investment, controlling development size, paying attentions on demandsupply, boosting potash processing technology, recovering Br, searching for sylvite deposit, exploring coal resources.

Key words: Laos, potash deposit, development actuality, suggestions

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