文献类型：专利

英文题名：Improved sol-gel method for preparing nano-powder in which temperature variation method to quickly convert sol to gel, distilling concentration method, and concentrated gel is segmentally heated and calcined for shortening period

作者：XIE X;DONG Y;LIN L

机构：[1]UNIV EAST CHINA SCI & TECHNOLOGY

申请号：CN1618768-A

申请日：2003-11-20

公开日：2005-05-25

语种：英文

收录：DERWENT

摘要：NOVELTY - A process for preparing the nano-powder by improved sol-gel method features that a temperature variation method is used to quickly convert sol to gel, a distilling concentration method is used for recovering a great deal of solvent, and the concentrated gel is segmentally heated and calcined for shortening period. Its advantages are high purity of product, low cost and less pollution.