J4 ›› 2010, Vol. 40 ›› Issue (1): 104-108.

• 地质与资源 • 上一篇    下一篇

热硫化条件下温度对黄铁矿结晶生长的影响

寇大明,黄菲,杨大勇,李光禄,王岳松,谭伟,郭耀宇   

  1. 东北大学 资源与土木工程学院|沈阳确110004
  • 收稿日期:2009-09-15 出版日期:2010-01-26 发布日期:2010-01-26
  • 通讯作者: 黄菲(1959-),女,江苏扬州人,副教授,博士,主要从事矿物学研究,Tel:024-83672595 E-mail:huangfei@mail.neu.edu.cn
  • 作者简介:寇大明(1971-)|女|辽宁抚顺人|博士研究生|主要从事矿物学研究|E-mail:dmrebecca2002@yahoo.com
  • 基金资助:

    国家自然科学基金项目(40872045);内生金属矿床成矿机制研究国家重点实验室(南京大学)开放基金项目(12-06-03);地质过程与矿产资源国家重点实验室(中国地质大学)开放课题(GPMR200906)

Temperature Influence on Pyrite Crystallization Growth Under Conditions of ThermalSulfurization

KOU Da-ming,HUANG Fei,YANG Da-yong,LI Guang-lu,WANG Yue-song,TAN Wei|GUO Yao-yu   

  1. College of Resources and Civil Engineering, Northeast University, Shenyang 110004,China
  • Received:2009-09-15 Online:2010-01-26 Published:2010-01-26

摘要:

模拟天然黄铁矿形成条件和基本过程,利用真空管式炉实验设备,通过热硫化法在250~410℃反应,实验考察不同温度条件下黄铁矿的结晶生长情况。运用扫描电镜、X射线粉晶衍射分析等手段,对实验产物形貌、物相结构特点等进行测试分析。结果表明:250~410℃时均可形成黄铁矿,但250~280℃时黄铁矿结晶程度较差;310~340℃时,可生长出部分晶面;360℃时黄铁矿生长成较为完好的晶体;380℃时黄铁矿结晶成立方体、八面体等自形晶;410℃时可形成结晶好、成分单一的黄铁矿。

关键词: 热硫化;温度影响;黄铁矿;结晶生长

Abstract:

Natural conditions and formation process for pyrite were simulated. A laboratory vacuum tube furnace heater was used through the thermal curing process between 250℃ and 410℃. Responses were captured from the experimental study at different temperatures under the conditions of pyrite crystallization growth. Using the methods such as scanning electron microscope and X-ray diffraction analysis, the authors analyzed the pyrite in crystal form and structure. The results show that it is formed between 250℃ and 410℃, but it is low in degree of crystallization between 250℃ and 280℃. The partial crystal faces begin to grow between 310℃ and 340℃, and better crystal planes occur at 360℃. It has euhedral crystals that appear as cubes and octahedrons at 380℃. When it is 410℃, the pyrite crystallizes completely with a single composition.

Key words: thermal sulfurization, temperature influence, pyrites, crystallization growth

中图分类号: 

  • P578.2
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