Title:
METHOD FOR MANUFACTURING CRUSHED SAND, CLEANING METHOD AND GRAIN OF SAND AS WELL AS EQUIPMENT
Document Type and Number:
Japanese Patent JP2003144967
Kind Code:
A
Abstract:
To clean and separate a grain of carbon attached to sand and other attachment.
The method for manufacturing sand is characterized by crushing a rock to produce a grain of sand having a necessary particle size, subjecting the sharp part of the grain of sand to the blunting treatment and then removing the carbon molecule and the oil content attached to the grain of sand by the aeration cleaning.
Inventors:
SHIMADA TAKESHI
Application Number:
JP2001343672A
Publication Date:
May 20, 2003
Filing Date:
November 08, 2001
Export Citation:
Assignee:
JOBU SANGYO KK
International Classes:
B02C23/08; B03B5/00; B03D1/02; B03D1/14; (IPC1-7): B03B5/00; B03D1/02; B03D1/14
Attorney, Agent or Firm:
Shoji Suzuki (1 person outside)