Title:
【発明の名称】沈降炭酸カルシウム
Document Type and Number:
Japanese Patent JP2857806
Kind Code:
B2
Abstract:
The calcium carbonate is prepared by: a) slaking quicklime in an aqueous medium; b) passing the suspension of calcium hydroxide through a sieve; c) converting the calcium hydroxide into a finely dispersed condition; d) carbonating and neutralising the suspension of finely dispersed slaked lime formed in step (c) using a gas comprising carbon dioxide; and e) separating the precipitated calcium carbonate formed in step (d) from the aqueous medium in which it is suspended. a
Inventors:
BUREEKURII IAN SUCHUAATO
JOONZU TOOMASU RICHAADO
JOONZU TOOMASU RICHAADO
Application Number:
JP51552891A
Publication Date:
February 17, 1999
Filing Date:
September 06, 1991
Export Citation:
Assignee:
II SHII SHII INTERN LTD
International Classes:
C01F11/18; C04B2/06; D21H17/67; D21H19/38; (IPC1-7): C01F11/18; C04B2/06; D21H17/67; D21H19/38
Attorney, Agent or Firm:
Yoshio Saito