Title:
霞石閃長岩粉末を処理して超微細粒径生成物を生成する方法
Document Type and Number:
Japanese Patent JP5230655
Kind Code:
B2
Abstract:
The method of converting nepheline syenite particulate feedstock with a grain size profile to an ultra-fine grain finish product for subsequent commercial use, the ultra-fine grain final product has a maximum grain size of less than about 6 microns. The method comprising: providing a dry feedstock with a controlled maximum particle size greater than about 20 microns; grinding the feedstock in a dry state by passing the feedstock vertically downward through a continuous, high-speed stirred ball mill whereby the feedstock is ground into an intermediate powder having a drastically reduced grain size profile than the grain size profile of the feedstock; and passing the intermediate powder from the mill through an air classifier using a rapidly moving high speed air stream moving along a given path to convey the ultra-fine grain product along the path and from the classifier and to allow coarse particulate material including particles larger than the ultra-fine product to be separated and then expelled from the classifier.
Inventors:
Schlesinger, Louis M
Sanchez, Mauricio Duran
Gonzales, Herald Hernandez
Acebedo, Artemio Gonzales
Sanchez, Mauricio Duran
Gonzales, Herald Hernandez
Acebedo, Artemio Gonzales
Application Number:
JP2009549074A
Publication Date:
July 10, 2013
Filing Date:
January 23, 2008
Export Citation:
Assignee:
Unimin Corporation
International Classes:
C01B33/26; B02C17/16; B02C17/18; B02C17/20; B02C23/06; B02C23/12; B07B7/083; C09D7/61
Domestic Patent References:
| JP11081032A | ||||
| JP6322288A | ||||
| JP3118849A | ||||
| JP4281858A | ||||
| JP2001501530A | ||||
| JP61167470A | ||||
| JP1139153A | ||||
| JP2004098060A | ||||
| JP2298366A | ||||
| JP4485950B2 | ||||
| JP60137746A | ||||
| JP60108500A | ||||
| JP63295666A |
Foreign References:
| WO2006098178A1 |
Other References:
化学工学便覧,日本,丸善株式会社,1999年 2月25日,改訂六版,Pages858-859
Attorney, Agent or Firm:
Kimura Mitsuru
Takanori Mamoru
Taiji Morikawa
Amamiya Yasuhito
Kei Sakurada
Yasuyuki Hata
Takanori Mamoru
Taiji Morikawa
Amamiya Yasuhito
Kei Sakurada
Yasuyuki Hata