Title:
珪酸質肥料の製造方法
Document Type and Number:
Japanese Patent JP4091745
Kind Code:
B2
Abstract:
This invention provides a silicic fertilizer using a slag produced in a preliminary treatment of a molten pig iron and imparted with a high soluble silica content, and a production method of such a silicic fertilizer. CaO is added and oxygen is blown into a molten pig iron while adjusting a basicity (CaO/SiO2) to 3 or below, and the molten pig iron is subjected to desiliconization and dephosphorization. The resulting slag is collected to produce the silicic fertilizer. This silicic fertilizer has a basicity (CaO/SiO2) of not greater than 3 and contains 15 to 35 mass % of soluble silica.
Inventors:
Masaki Iwasaki
Fukigami Kazunori
Shu Matsumoto
Fukigami Kazunori
Shu Matsumoto
Application Number:
JP2001003468A
Publication Date:
May 28, 2008
Filing Date:
January 11, 2001
Export Citation:
Assignee:
Nippon Steel Corporation
International Classes:
C05D3/04; C05B5/00; C05D9/00
Domestic Patent References:
| JP31006868B1 |
Attorney, Agent or Firm:
Tatsuo Watanuki
Fumio Yamamoto
Fumio Yamamoto