Tourmaline and its prepn. method

Application Number: 00110601
Application Date: 2000.07.01
Publication Number: 1287888
Publication Date: 2001.03.21
Priority Information:
International: A61K35/02;B02C4/00;B02C19/00;B02C23/08;C04B35/16
Applicant(s) Name: Yuantai High Science & Tech. Co., Ltd., Dalian
Inventor(s) Name: Wang Zilong;Li Xian
Patent Agency Code: 21119
Patent Agent: long feng
Abstract The present invention relates to tourmaline and its making method, and said method includes five steps of ore dressing, course powder processing, course powder purifying, extrafine grinding and packaging. The ultrafine powder grinder makes the powder body rotate and rese with tangential speed lither than 120 m./sec. against lining plate and collide with each other to form ultrafine powder with particle size smaller than 0.1-15 micro. The tourmaline is black hexgonal prism crystal and is pure solid silicate mineral containing boron, and may used in water purification under temp. of 0-700 deg.C.