• 主题
高级搜索  >
历史搜索 清空历史
首页> 外国专利> METHOD FOR PREPARING NANO PRECIPITATED CALCIUM CARBONATE USING WASTED DUST FROM A STEELWORKS CAPABLE OF EASILY CONTROLLING THE PARTICLE SIZE AND THE FORM OF THE CALCIUM CARBONATE

METHOD FOR PREPARING NANO PRECIPITATED CALCIUM CARBONATE USING WASTED DUST FROM A STEELWORKS CAPABLE OF EASILY CONTROLLING THE PARTICLE SIZE AND THE FORM OF THE CALCIUM CARBONATE

机译：利用可轻松控制颗粒大小和形态的碳酸钙钢中的废粉制备纳米级碳酸钙的方法

页面导航
  • 摘要
  • 著录项
  • 相似文献

摘要

PURPOSE: A method for preparing nano precipitated calcium carbonate using wasted dust from a steelworks is provided to obtain the calcium carbonate to be capable of being recycled by successively implementing a high temperature sintering process, a hydration reaction, and a carbonation reaction.;CONSTITUTION: A method for preparing nano precipitated calcium carbonate using wasted dust from a steelworks includes the following: Quicklime is obtained by sintering wasted dust from a steel works. A hydration reaction is implemented with respect to the quicklime in order to obtain calcium hydroxide. Carbon dioxide is injected into the calcium hydroxide to obtain nano precipitated calcium carbonate. The sintering process is implemented for 1 to 3 hours at a temperature between 900 and 1500 degrees Celsius. The rate of the sintering process is between 5 and 15 degrees Celsius/min. The hydration reaction is implemented for 30 minutes at a temperature between 20 and 27 degrees Celsius.;COPYRIGHT KIPO 2012
机译：目的：提供一种利用炼钢厂的废粉制备纳米沉淀碳酸钙的方法，该方法通过依次进行高温烧结，水合反应和碳酸化反应来获得可循环利用的碳酸钙。一种使用来自钢铁厂的废粉制备纳米级沉淀碳酸钙的方法包括以下步骤：生石灰是通过烧结来自钢铁厂的废粉获得的。针对生石灰进行水合反应以获得氢氧化钙。将二氧化碳注入氢氧化钙中以获得纳米沉淀的碳酸钙。烧结过程在900到1500摄氏度之间的温度下进行1-3小时。烧结过程的速度在5至15摄氏度/分钟之间。水合反应在20到27摄氏度之间进行30分钟。; COPYRIGHT KIPO 2012

著录项

相似文献

  • 专利
  • 外文文献
  • 中文文献
获取专利

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号