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BR0213718A - Silicate Fertilizer Material, and Method for Producing It - Google Patents

Silicate Fertilizer Material, and Method for Producing It

Info

Publication number
BR0213718A
BR0213718A BR0213718-6A BR0213718A BR0213718A BR 0213718 A BR0213718 A BR 0213718A BR 0213718 A BR0213718 A BR 0213718A BR 0213718 A BR0213718 A BR 0213718A
Authority
BR
Brazil
Prior art keywords
silicate
content
slag
fertilizer material
hot metal
Prior art date
Application number
BR0213718-6A
Other languages
Portuguese (pt)
Inventor
Yasuko Yao
Keiji Watanabe
Tsuneo Isoo
Tatsuhito Takahashi
Shigeru Inoue
Osamu Yamase
Original Assignee
Jfe Steel Corp
Kokan Mining Company Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Jfe Steel Corp, Kokan Mining Company Ltd filed Critical Jfe Steel Corp
Publication of BR0213718A publication Critical patent/BR0213718A/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05D—INORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C; FERTILISERS PRODUCING CARBON DIOXIDE
    • C05D3/00—Calcareous fertilisers
    • C05D3/04—Calcareous fertilisers from blast-furnace slag or other slags containing lime or calcium silicates

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Organic Chemistry (AREA)
  • Fertilizers (AREA)

Abstract

"MATERIAL PARA FERTILIZANTE DE SILICATO, E MéTODO PARA PRODUZI-LA". O objetivo é fornecer um material para fertilizante de silicato capaz de conceder fertilizante de sificato que possua um teor de silicato aumentado (silicato solúvel) e um conteúdo de álcali reduzido e preferivelmente um conteúdo de AI~2~O~ 3~ reduzido, com custos baixos e fornecer um método para a produção do material para fertilizante de silicato. Portanto, o material para fertilizante de silicato da invenção compreende escória que é recuperada em uma etapa de pré-tratamento de metal quente em alto-forno, em que a escória contém silicato formado através da oxidação do silício no metal quente e o teor de silicato solúvel da escória é de pelo menos 10% em massa. Com relação à material para fertilizante de silicato, a escória que é formada no pré-tratamento do metal quente e que possui um teor de silicato solúvel aumentado e um conteúdo de álcali reduzido pode ser diretamente utilizada como se fosse, e portanto, o material pode ser produzido com custos extremamente baixos. O método de produção da invenção é para a produção do material para fertilizante de silicato e compreende a alimentação de uma fonte de oxigênio a um metal quente em alto-forno no seu pré-tratamento para assim oxidar o silício no metal quente dentro do silicato, e recuperação da escória contendo silicato e solidificação para desse modo compor a escória para ter um teor de silicato solúvel de pelo menos 10% em massa."SILICATE FERTILIZER MATERIAL, AND METHOD FOR PRODUCING IT". The objective is to provide a silicate fertilizer material capable of providing sificate fertilizer which has an increased silicate content (soluble silicate) and a reduced alkali content and preferably a reduced AI ~ 2 ~ O ~ 3 ~ content. and provide a method for the production of silicate fertilizer material. Therefore, the silicate fertilizer material of the invention comprises slag which is recovered in a blast furnace hot metal pretreatment step, wherein the slag contains silicate formed by oxidizing the silicon in the hot metal and the silicate content. Soluble slag content is at least 10% by mass. With respect to silicate fertilizer material, the slag that is formed in the hot metal pretreatment and which has an increased soluble silicate content and a reduced alkali content can be directly used as it were, and therefore the material can be produced at extremely low costs. The production method of the invention is for the production of silicate fertilizer material and comprises feeding a source of oxygen to a blast furnace hot metal in its pretreatment to thereby oxidize the silicon in the hot metal within the silicate, and recovering the silicate-containing slag and solidifying to thereby compose the slag to have a soluble silicate content of at least 10% by weight.

BR0213718-6A 2001-10-31 2002-10-30 Silicate Fertilizer Material, and Method for Producing It BR0213718A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2001334127 2001-10-31
JP2002241146 2002-08-21
PCT/JP2002/011281 WO2003037825A1 (en) 2001-10-31 2002-10-30 Raw material for silicate fertilizer and method for production thereof

Publications (1)

Publication Number Publication Date
BR0213718A true BR0213718A (en) 2004-10-26

Family

ID=26624232

Family Applications (1)

Application Number Title Priority Date Filing Date
BR0213718-6A BR0213718A (en) 2001-10-31 2002-10-30 Silicate Fertilizer Material, and Method for Producing It

Country Status (6)

Country Link
JP (1) JP4202254B2 (en)
KR (1) KR20050042021A (en)
CN (1) CN1608040A (en)
BR (1) BR0213718A (en)
TW (1) TW200300134A (en)
WO (1) WO2003037825A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4938711B2 (en) * 2008-03-21 2012-05-23 日本冶金工業株式会社 Fertilizer slag and manufacturing method thereof
JP6119704B2 (en) * 2014-09-12 2017-04-26 Ｊｆｅスチール株式会社 Raw material for phosphosilicate fertilizer and method for producing the same
TWI675815B (en) * 2017-06-28 2019-11-01 日商日本製鐵股份有限公司 Steelmaking slag for fertilizer source material, method for producing steelmaking slag for fertilizer source material, method for producing fertilizer, and fertilizer application method
AU2018282388B2 (en) * 2017-06-28 2019-09-19 Nippon Steel Corporation Steelmaking slag for fertilizer raw material, method for producing steelmaking slag for fertilizer raw material, method for producing fertilizer, and fertilizer application method
JP7386600B2 (en) * 2018-10-17 2023-11-27 太平洋セメント株式会社 Method for producing silicic acid fertilizer

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04243992A (en) * 1991-01-29 1992-09-01 Nippon Chem Ind Co Ltd Fused compound fertilizer
JP3451872B2 (en) * 1996-02-09 2003-09-29 Ｊｆｅスチール株式会社 Production method of soluble potassium fertilizer
JP3648995B2 (en) * 1997-08-11 2005-05-18 Ｊｆｅスチール株式会社 Slow-release potash fertilizer
JP4141538B2 (en) * 1998-07-21 2008-08-27 電気化学工業株式会社 Fertilizer or soil conditioner
JP2000185987A (en) * 1998-10-15 2000-07-04 Nkk Corp Method for producing slow-release potash fertilizer
JP2000226285A (en) * 1999-02-05 2000-08-15 Nkk Corp Slow release potash fertilizer
JP2000290090A (en) * 1999-02-05 2000-10-17 Nkk Corp Slow release potash fertilizer
JP4091745B2 (en) * 2000-01-14 2008-05-28 新日本製鐵株式会社 Manufacturing method of siliceous fertilizer

Also Published As

Publication number Publication date
KR20050042021A (en) 2005-05-04
WO2003037825A1 (en) 2003-05-08
TW200300134A (en) 2003-05-16
JPWO2003037825A1 (en) 2005-02-17
CN1608040A (en) 2005-04-20
JP4202254B2 (en) 2008-12-24

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Legal Events

Date Code Title Description
B08F Application fees: application dismissed [chapter 8.6 patent gazette]

Free format text: REFERENTE A 5A E 6 A ANUIDADES

B08K Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette]

Free format text: REFERENTE AO DESPACHO 8.6 DA RPI 2012 DE 28/07/2009.