BR8706002A - Processo para producao de oxido de ferro de alta reatividade e alta superficie especifica - Google Patents

Processo para producao de oxido de ferro de alta reatividade e alta superficie especifica

Info

Publication number
BR8706002A
BR8706002A BR8706002A BR8706002A BR8706002A BR 8706002 A BR8706002 A BR 8706002A BR 8706002 A BR8706002 A BR 8706002A BR 8706002 A BR8706002 A BR 8706002A BR 8706002 A BR8706002 A BR 8706002A
Authority
BR
Brazil
Prior art keywords
iron oxide
production
calcination
reduction
specific surface
Prior art date
Application number
BR8706002A
Other languages
English (en)
Inventor
Jose Marcio Jardim Paixao
Original Assignee
Vale Do Rio Doce Co
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 Vale Do Rio Doce Co filed Critical Vale Do Rio Doce Co
Priority to BR8706002A priority Critical patent/BR8706002A/pt
Priority to EP88904903A priority patent/EP0385991B1/en
Priority to DE8888904903T priority patent/DE3871396D1/de
Priority to AU19405/88A priority patent/AU621826B2/en
Priority to JP63504659A priority patent/JPH03503156A/ja
Priority to PCT/BR1988/000008 priority patent/WO1989004292A1/en
Priority to AT88904903T priority patent/ATE76389T1/de
Publication of BR8706002A publication Critical patent/BR8706002A/pt
Priority to FI902309A priority patent/FI902309A0/fi
Priority to DK113590A priority patent/DK113590A/da
Priority to CA002065948A priority patent/CA2065948A1/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G49/00—Compounds of iron
    • C01G49/02—Oxides; Hydroxides
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
    • C09K8/02—Well-drilling compositions
    • C09K8/03—Specific additives for general use in well-drilling compositions
    • C09K8/032—Inorganic additives
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/60—Particles characterised by their size
    • C01P2004/61—Micrometer sized, i.e. from 1-100 micrometer
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/12—Surface area

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Compounds Of Iron (AREA)
  • Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems (AREA)
  • Saccharide Compounds (AREA)
  • Investigating Or Analysing Biological Materials (AREA)
  • Developing Agents For Electrophotography (AREA)
BR8706002A 1987-11-09 1987-11-09 Processo para producao de oxido de ferro de alta reatividade e alta superficie especifica BR8706002A (pt)

Priority Applications (10)

Application Number Priority Date Filing Date Title
BR8706002A BR8706002A (pt) 1987-11-09 1987-11-09 Processo para producao de oxido de ferro de alta reatividade e alta superficie especifica
EP88904903A EP0385991B1 (en) 1987-11-09 1988-06-09 Process for the production of iron oxide having high reactivity and high specific surface
DE8888904903T DE3871396D1 (de) 1987-11-09 1988-06-09 Verfahren zur herstellung von eisenoxid mit hoher reaktivitaet und hoher spezifischer oberflaeche.
AU19405/88A AU621826B2 (en) 1987-11-09 1988-06-09 Process for the production of iron oxide having high reactivity and high specific surface
JP63504659A JPH03503156A (ja) 1987-11-09 1988-06-09 高反応性高比表面積酸化鉄の製造方法
PCT/BR1988/000008 WO1989004292A1 (en) 1987-11-09 1988-06-09 Process for the production of iron oxide having high reactivity and high specific surface
AT88904903T ATE76389T1 (de) 1987-11-09 1988-06-09 Verfahren zur herstellung von eisenoxid mit hoher reaktivitaet und hoher spezifischer oberflaeche.
FI902309A FI902309A0 (fi) 1987-11-09 1990-05-08 Foerfarande foer tillverkning av jaernoxid som har stor reaktivitet och stor specifik yta.
DK113590A DK113590A (da) 1987-11-09 1990-05-08 Fremgangsmaade til fremstilling af jernoxid med hoej reaktivitet og stor specifik overflade
CA002065948A CA2065948A1 (en) 1987-11-09 1992-04-14 Process for the production of spongy iron oxide having high reactivity and high specific surface

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BR8706002A BR8706002A (pt) 1987-11-09 1987-11-09 Processo para producao de oxido de ferro de alta reatividade e alta superficie especifica

Publications (1)

Publication Number Publication Date
BR8706002A true BR8706002A (pt) 1989-05-30

Family

ID=4043533

Family Applications (1)

Application Number Title Priority Date Filing Date
BR8706002A BR8706002A (pt) 1987-11-09 1987-11-09 Processo para producao de oxido de ferro de alta reatividade e alta superficie especifica

Country Status (9)

Country Link
EP (1) EP0385991B1 (pt)
JP (1) JPH03503156A (pt)
AT (1) ATE76389T1 (pt)
AU (1) AU621826B2 (pt)
BR (1) BR8706002A (pt)
DE (1) DE3871396D1 (pt)
DK (1) DK113590A (pt)
FI (1) FI902309A0 (pt)
WO (1) WO1989004292A1 (pt)

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2870003A (en) * 1957-06-17 1959-01-20 Ontario Research Foundation Method of converting hematite to magnetite
US3160499A (en) * 1961-06-28 1964-12-08 Pullman Inc Method for reducing metal oxides
GB979979A (en) * 1962-06-12 1965-01-06 W S Moore Co Improvements in or relating to magnetite
CA1047243A (en) * 1973-06-28 1979-01-30 Irwin Fox Porous fe304 drilling mud additive
JPS55154322A (en) * 1979-05-11 1980-12-01 Tdk Corp Manufacture of iron oxide
JPS55154323A (en) * 1979-05-11 1980-12-01 Tdk Corp Manufacture of iron oxide
BR8305404A (pt) * 1983-09-30 1985-05-07 Petroleo Brasileiro Sa Processo de obter concentrado de magnetita de grande area especifica
BR8500346A (pt) * 1985-01-25 1986-09-09 Petroleo Brasileiro Sa Processo de preparacao de aditivo para lamas de perfuracao e lamas de perfuracao

Also Published As

Publication number Publication date
DK113590A (da) 1990-06-18
AU1940588A (en) 1989-06-01
DE3871396D1 (de) 1992-06-25
EP0385991A1 (en) 1990-09-12
FI902309A0 (fi) 1990-05-08
DK113590D0 (da) 1990-05-08
JPH03503156A (ja) 1991-07-18
EP0385991B1 (en) 1992-05-20
ATE76389T1 (de) 1992-06-15
WO1989004292A1 (en) 1989-05-18
AU621826B2 (en) 1992-03-26

Similar Documents

Publication Publication Date Title
CA2181328A1 (en) Process for the Production of High Purity Carbon Dioxide
ES552668A0 (es) Perfeccionamientos introducidos en la fabricacion de piezas de desgaste
ATE127103T1 (de) Verfahren zur herstellung von binären schwefelverbindungen.
SE7510208L (sv) Forfaringssett for framstellning av jernpulver
US4081522A (en) Regeneration of sulfated metal oxides and carbonates
BR8706002A (pt) Processo para producao de oxido de ferro de alta reatividade e alta superficie especifica
MY121821A (en) A method and equipment for the production of a gas mixture
Nédez et al. A new Claus catalyst to reduce atmospheric pollution
ES540730A0 (es) Procedimiento e instalacion para la obtencion de soluciones de tipo hidrocarburo clorofluorado con alto contenido de gas disuelto.
FR2767129B1 (fr) Composition a base d'un sesquisulfure de samarium, procede de preparation et utilisation comme pigment colorant
US3755551A (en) Reduction of sulfur dioxide
GB1276659A (en) Improvements in the recovery of sulphur
JPH08192055A (ja) 亜硫酸ガスの還元用触媒、その製造方法およびこれを利用した硫黄の回収方法
EP0271464A3 (en) A method of producing liquid crude iron and high-grade top gas
NO307698B1 (no) Fremgangsmåte for avsvovling av en gassblanding inneholdende H2S og SO2 med gjennvinning av disse forbindelsene i form av svovel
JPS62283847A (ja) 反応性に優れた精錬剤用の生石灰の製造方法
SU644724A1 (ru) Способ получени сернистого газа
KR860001770B1 (ko) 용선의 로외 탈황제
Soejima et al. Application of CO as Bottom Stirring Gas to Combined Blown Converter
GB443008A (en) Improvements in methods of producing sulphur by the reduction of sulphur dioxide
RU2002110452A (ru) Способ восстановления оксида марганца
FR2325720A1 (fr) Procede pour la fabrication d'acier en utilisant un flux fondant traite au dioxyde de carbone
EP0147234A3 (en) Synthesis of organic compounds from carbon
GR3036167T3 (en) How to increase the fusion viscosity index of hollow glassware for of a more efficient cooling
JPS5586520A (en) Recovery of sulfur from gas containing sulfur dioxide

Legal Events

Date Code Title Description
KD Notifcation of receipt (letter patent)
FG Letter patent granted
B21A Patent or certificate of addition expired [chapter 21.1 patent gazette]

Free format text: PATENTE EXTINTA EM 09/11/2002