Title:
ホタテ貝殻焼成物を用いる苛性化炭酸カルシウムの製造方法
Document Type and Number:
Japanese Patent JP4663816
Kind Code:
B2
Abstract:
To provide a technique for improving the causticizing process in pulp production.
In the causticizing process of pulp production, improvement of lime sludge dewaterability, decrease of dreg generation and, moreover, high whitening of calcium carbonate can be achieved by adding the baked products of scallop shells and a green liquor and performing causticizing reaction.
COPYRIGHT: (C)2011,JPO&INPIT
Inventors:
Yuji Ono
Masato Takayama
Takashi Ochi
Horisaki Takashi
Hirose Mutsumi
Hideichi Kawasaki
Tokuichi Sato
Masato Takayama
Takashi Ochi
Horisaki Takashi
Hirose Mutsumi
Hideichi Kawasaki
Tokuichi Sato
Application Number:
JP2010155514A
Publication Date:
April 06, 2011
Filing Date:
July 08, 2010
Export Citation:
Assignee:
NIPPON PAPER INDUSTRIES CO.,LTD.
Natural Japan Co., Ltd.
Natural Japan Co., Ltd.
International Classes:
D21C11/04; C01F11/18; D21C3/02; D21H17/67; D21H19/38
Domestic Patent References:
| JP200126419A | ||||
| JP5696983A | ||||
| JP200763080A | ||||
| JP200763062A | ||||
| JP2001354415A |
Attorney, Agent or Firm:
Shinjiro Ono
Kazuo Shamoto
Yasushi Kobayashi
Akio Chiba
Hiroyuki Tomita
Mitsutoshi Nakamura
Kazuo Shamoto
Yasushi Kobayashi
Akio Chiba
Hiroyuki Tomita
Mitsutoshi Nakamura