Title:
粒状苦土肥料とその製造方法
Document Type and Number:
Japanese Patent JP4997656
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a granular magnesia fertilizer which has high contents of a citrate soluble magnesia component and a water-soluble magnesia component, has high hardness and hardly powdering and is excellent in collapsibility in soil and water. SOLUTION: The granular magnesia fertilizer containing >=55 wt.% citrate- soluble component and >=3 wt.% water-soluble component is obtained by adding sulfuric acid to a mixture composed of magnesium hydroxide and light-burned magnesia and granulating the mixture using magnesium sulfate produced by the reaction of the light-burned magnesia and sulfuric acid as a binder.
Inventors:
Maruyama Hideyuki
Masahiro Shimizu
Goda Taku
Masahiro Shimizu
Goda Taku
Application Number:
JP2001292933A
Publication Date:
August 08, 2012
Filing Date:
September 26, 2001
Export Citation:
Assignee:
Onoda Chemical Co., Ltd.
International Classes:
B01J2/28; C05G3/00; C05D5/00; C05G5/00
Domestic Patent References:
| JP11343187A | ||||
| JP3164487A |
Attorney, Agent or Firm:
Hiroshi Chiba