The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 23, 1986
Filed:
Jun. 27, 1984
Shigehito Takamoto, Kure, JP;
Kazunori Shoji, Kure, JP;
Nobuyasu Meguri, Kure, JP;
Yoshinori Ohtani, Kure, JP;
Hirofumi Kikkawa, Kure, JP;
Yasuyuki Nishimura, Kure, JP;
Hiroyuki Kaku, Kure, JP;
Masayasu Murata, Ohtemachi, JP;
Babcock-Hitachi Kabushiki Kaisha, Tokyo, JP;
Abstract
A process for producing a coal-water slurry having a high coal concentration (generally 60 to 80% by weight or more) and a lower viscosity, at a lower cost and with a smaller amount of dispersing agent added is provided, which process is directed to a process for producing a high concentration coal-water slurry by feeding coal, water and a dispersing agent into a wet, continuous ball mill and wet-milling them, characterized by feeding the dispersing agent in a multi-stage manner along the milling direction of coal within the ball mill.