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BRPI0616813A2 - steel treatment of steel slag and its resulting product for use as a raw material for cement manufacturing - Google Patents

steel treatment of steel slag and its resulting product for use as a raw material for cement manufacturing

Info

Publication number
BRPI0616813A2
BRPI0616813A2 BRPI0616813-2A BRPI0616813A BRPI0616813A2 BR PI0616813 A2 BRPI0616813 A2 BR PI0616813A2 BR PI0616813 A BRPI0616813 A BR PI0616813A BR PI0616813 A2 BRPI0616813 A2 BR PI0616813A2
Authority
BR
Brazil
Prior art keywords
slag
raw material
reduced
steel
order
Prior art date
Application number
BRPI0616813-2A
Other languages
Portuguese (pt)
Inventor
Oliveira Luma Edson De
Tsutomo Morimoto
De Lana Marcelo Fernandes
Maria Cecilia Florindo
Siquei Tango Carlos Eduardo De
Chotoli Fabiano Ferreira
Tosetti Joao Pedro Valls
Neto Joao Ferreira
Original Assignee
Inst Pesquisas Sao Paulo Sa Ipt
Arcelormittal Brasil S A
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 Inst Pesquisas Sao Paulo Sa Ipt, Arcelormittal Brasil S A filed Critical Inst Pesquisas Sao Paulo Sa Ipt
Priority to BRPI0616813-2A priority Critical patent/BRPI0616813B1/en
Publication of BRPI0616813A2 publication Critical patent/BRPI0616813A2/en
Publication of BRPI0616813B1 publication Critical patent/BRPI0616813B1/en

Links

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies

Landscapes

  • Curing Cements, Concrete, And Artificial Stone (AREA)
  • Processing Of Solid Wastes (AREA)
  • Furnace Details (AREA)

Abstract

TRATAMENTO SIDERéRGICO DE ESCàRIA DE ACIARIA E RESPECTIVO PRODUTO RESULTANTE, PARA USO COMO MATÉRIA-PRIMA PARA FABRICAÇçO DE CIMENTO. Tem como escopo principal a modificação da composição da escória de aciaria ainda quente, proveniente diretamente do convertedor, através da sua redução com subprodutos industriais, sendo a escória resultante posterior e adequadamente resfriada, lenta ou bruscamente, a fim de se obter uma escória reduzida passível de ser britada e separada magneticamente, no intuito de sua fração metálica retornar ao processo de aciaria e sua fração não metálica ser utilizada como matéria-prima na indústria cimenteira. Com o produto obtido, com base no conhecimento da composição química das escórias não-reduzida e reduzida, podem ser formulados subprodutos siderúrgicos a partir da mistura de ambas, de forma a permitir a sua utilização na dosagem de farinhas, contendo na sua composição escória tratada ESCACIM entre 0,5 e 50% e fonte de sílica entre 10 a 20 % em relação ao peso total e fonte de cálcio com teor de óxidos totais na base não volátil acima de 88% em massa.SIDEREGIC TREATMENT OF ACIaria Slag and RESULTING PRODUCT FOR USE AS RAW MATERIAL FOR CEMENT MANUFACTURING. Its main scope is the modification of the composition of the still hot steel slag, directly from the converter, through its reduction with industrial by-products, and the resulting slag is subsequently cooled, slowly or abruptly, in order to obtain a reduced slag that can be reduced. of being crushed and magnetically separated, in order for its metallic fraction to return to the steelmaking process and its non-metallic fraction to be used as raw material in the cement industry. With the obtained product, based on the knowledge of the chemical composition of the non-reduced and reduced slag, steel by-products can be formulated from the mixture of both, in order to allow its use in the dosing of flours, containing in its treated slag composition. ESCACIM between 0.5 and 50% and source of silica between 10 and 20% in relation to the total weight and source of calcium with total oxide content in the nonvolatile base above 88% by mass.

BRPI0616813-2A 2006-09-27 2006-09-27 STEEL TREATMENT OF ACIARIA SLAG AND RESULTING PRODUCT FOR USE AS RAW MATERIAL FOR CEMENT MANUFACTURING BRPI0616813B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
BRPI0616813-2A BRPI0616813B1 (en) 2006-09-27 2006-09-27 STEEL TREATMENT OF ACIARIA SLAG AND RESULTING PRODUCT FOR USE AS RAW MATERIAL FOR CEMENT MANUFACTURING

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BRPI0616813-2A BRPI0616813B1 (en) 2006-09-27 2006-09-27 STEEL TREATMENT OF ACIARIA SLAG AND RESULTING PRODUCT FOR USE AS RAW MATERIAL FOR CEMENT MANUFACTURING

Publications (2)

Publication Number Publication Date
BRPI0616813A2 true BRPI0616813A2 (en) 2008-12-16
BRPI0616813B1 BRPI0616813B1 (en) 2019-03-06

Family

ID=40550152

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0616813-2A BRPI0616813B1 (en) 2006-09-27 2006-09-27 STEEL TREATMENT OF ACIARIA SLAG AND RESULTING PRODUCT FOR USE AS RAW MATERIAL FOR CEMENT MANUFACTURING

Country Status (1)

Country Link
BR (1) BRPI0616813B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018107251A1 (en) * 2016-12-12 2018-06-21 Instituto De Pesquisas Tecnológicas Do Estado De São Paulo S/A – Ipt Metallurgical treatment of steel slag for use as an addition to portland cement

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018107251A1 (en) * 2016-12-12 2018-06-21 Instituto De Pesquisas Tecnológicas Do Estado De São Paulo S/A – Ipt Metallurgical treatment of steel slag for use as an addition to portland cement

Also Published As

Publication number Publication date
BRPI0616813B1 (en) 2019-03-06

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Legal Events

Date Code Title Description
B03A Publication of an application: publication of a patent application or of a certificate of addition of invention
B25A Requested transfer of rights approved

Owner name: INSTITUTO DE PESQUISAS TECNOLOGICAS DO ESTADO DE S

Free format text: TRANSFERIDO DE: COMPANHIA SIDERURGICA DE TUBARAO

B07A Technical examination (opinion): publication of technical examination (opinion)
B07A Technical examination (opinion): publication of technical examination (opinion)
B09A Decision: intention to grant
B16A Patent or certificate of addition of invention granted

Free format text: PRAZO DE VALIDADE: 10 (DEZ) ANOS CONTADOS A PARTIR DE 06/03/2019, OBSERVADAS AS CONDICOES LEGAIS.