FI64648C - Foerfarande foer utnyttjande av fattiga oxidiska och jaernhaltiga komplexmalmer eller -koncentrat - Google Patents

Foerfarande foer utnyttjande av fattiga oxidiska och jaernhaltiga komplexmalmer eller -koncentrat Download PDF

Info

Publication number: FI64648C
Authority: FI; Finland
Prior art keywords: slag; weight; drum; process according; furnace
Prior art date: 1981-01-23

Application number

FI810185A

Other languages

English (en)

Finnish (fi)

Other versions

FI810185L (fi

FI64648B (fi

Inventor

Frans Heikki Tuovinen

Seppo Olavi Heimala

Stig-Erik Hultholm

Risto Johannes Honkala

Helge Johannes Krogerus

Matti Elias Honkaniemi

Original Assignee

Outokumpu Oy

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.)

1981-01-23

Filing date

1981-01-23

Publication date

1983-12-12

1981-01-23 Application filed by Outokumpu Oy filed Critical Outokumpu Oy

1981-01-23 Priority to FI810185A priority Critical patent/FI64648C/fi

1982-01-08 Priority to AU79295/82A priority patent/AU536996B2/en

1982-01-08 Priority to ZA82116A priority patent/ZA82116B/xx

1982-01-18 Priority to PH26749A priority patent/PH20690A/en

1982-01-21 Priority to BR8200310A priority patent/BR8200310A/pt

1982-01-21 Priority to NO820177A priority patent/NO157664C/no

1982-01-22 Priority to CA000394738A priority patent/CA1180904A/en

1982-07-24 Publication of FI810185L publication Critical patent/FI810185L/fi

1983-08-31 Publication of FI64648B publication Critical patent/FI64648B/fi

1983-12-12 Application granted granted Critical

1983-12-12 Publication of FI64648C publication Critical patent/FI64648C/fi

1986-05-27 Priority to US06/843,069 priority patent/US4740239A/en

Links

238000000034 method Methods 0.000 claims description 41
XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 36
239000002893 slag Substances 0.000 claims description 27
239000011651 chromium Substances 0.000 claims description 25
230000008569 process Effects 0.000 claims description 22
229910052804 chromium Inorganic materials 0.000 claims description 20
229910052720 vanadium Inorganic materials 0.000 claims description 15
VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 14
PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 14
229910052742 iron Inorganic materials 0.000 claims description 14
239000000463 material Substances 0.000 claims description 14
239000000571 coke Substances 0.000 claims description 11
229910052751 metal Inorganic materials 0.000 claims description 11
239000002184 metal Substances 0.000 claims description 11
239000000126 substance Substances 0.000 claims description 11
LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 claims description 11
239000010936 titanium Substances 0.000 claims description 10
238000006243 chemical reaction Methods 0.000 claims description 9
238000007885 magnetic separation Methods 0.000 claims description 9
230000009467 reduction Effects 0.000 claims description 9
229910052782 aluminium Inorganic materials 0.000 claims description 8
229910052719 titanium Inorganic materials 0.000 claims description 8
RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 7
239000011572 manganese Substances 0.000 claims description 7
238000011084 recovery Methods 0.000 claims description 7
239000012141 concentrate Substances 0.000 claims description 6
229910052759 nickel Inorganic materials 0.000 claims description 6
XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 5
239000003638 chemical reducing agent Substances 0.000 claims description 4
229910052748 manganese Inorganic materials 0.000 claims description 4
PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims description 3
239000002817 coal dust Substances 0.000 claims description 2
238000004090 dissolution Methods 0.000 claims description 2
230000005484 gravity Effects 0.000 claims description 2
239000007787 solid Substances 0.000 claims 3
239000010941 cobalt Substances 0.000 claims 1
229910017052 cobalt Inorganic materials 0.000 claims 1
GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims 1
238000005187 foaming Methods 0.000 claims 1
150000004698 iron complex Chemical class 0.000 claims 1
WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 claims 1
ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 43
239000000047 product Substances 0.000 description 26
239000000292 calcium oxide Substances 0.000 description 21
235000012255 calcium oxide Nutrition 0.000 description 20
239000011504 laterite Substances 0.000 description 19
229910001710 laterite Inorganic materials 0.000 description 19
229910004298 SiO 2 Inorganic materials 0.000 description 16
239000000203 mixture Substances 0.000 description 16
239000002994 raw material Substances 0.000 description 16
GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 14
UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 12
PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 11
229910018072 Al 2 O 3 Inorganic materials 0.000 description 10
229910052799 carbon Inorganic materials 0.000 description 9
229910000604 Ferrochrome Inorganic materials 0.000 description 8
VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 8
238000004519 manufacturing process Methods 0.000 description 7
229910000805 Pig iron Inorganic materials 0.000 description 6
238000001816 cooling Methods 0.000 description 6
239000007789 gas Substances 0.000 description 6
239000008187 granular material Substances 0.000 description 6
230000035484 reaction time Effects 0.000 description 6
OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 5
235000019738 Limestone Nutrition 0.000 description 5
238000002485 combustion reaction Methods 0.000 description 5
YDZQQRWRVYGNER-UHFFFAOYSA-N iron;titanium;trihydrate Chemical compound O.O.O.[Ti].[Fe] YDZQQRWRVYGNER-UHFFFAOYSA-N 0.000 description 5
239000006028 limestone Substances 0.000 description 5
235000012239 silicon dioxide Nutrition 0.000 description 5
239000010935 stainless steel Substances 0.000 description 5
229910001220 stainless steel Inorganic materials 0.000 description 5
229910010413 TiO 2 Inorganic materials 0.000 description 4
229910045601 alloy Inorganic materials 0.000 description 4
239000000956 alloy Substances 0.000 description 4
239000011449 brick Substances 0.000 description 4
GNTDGMZSJNCJKK-UHFFFAOYSA-N divanadium pentaoxide Chemical compound O=[V](=O)O[V](=O)=O GNTDGMZSJNCJKK-UHFFFAOYSA-N 0.000 description 4
239000011734 sodium Substances 0.000 description 4
239000002699 waste material Substances 0.000 description 4
239000012670 alkaline solution Substances 0.000 description 3
DNWNZRZGKVWORZ-UHFFFAOYSA-N calcium oxido(dioxo)vanadium Chemical compound [Ca+2].[O-][V](=O)=O.[O-][V](=O)=O DNWNZRZGKVWORZ-UHFFFAOYSA-N 0.000 description 3
229910052681 coesite Inorganic materials 0.000 description 3
229910052906 cristobalite Inorganic materials 0.000 description 3
239000010438 granite Substances 0.000 description 3
239000001095 magnesium carbonate Substances 0.000 description 3
229910000021 magnesium carbonate Inorganic materials 0.000 description 3
238000002360 preparation method Methods 0.000 description 3
239000000377 silicon dioxide Substances 0.000 description 3
239000007858 starting material Substances 0.000 description 3
229910052682 stishovite Inorganic materials 0.000 description 3
239000004408 titanium dioxide Substances 0.000 description 3
229910052905 tridymite Inorganic materials 0.000 description 3
238000004131 Bayer process Methods 0.000 description 2
229910005438 FeTi Inorganic materials 0.000 description 2
229910003023 Mg-Al Inorganic materials 0.000 description 2
BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 2
238000003723 Smelting Methods 0.000 description 2
CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
239000000654 additive Substances 0.000 description 2
238000005054 agglomeration Methods 0.000 description 2
230000002776 aggregation Effects 0.000 description 2
150000001447 alkali salts Chemical class 0.000 description 2
238000000137 annealing Methods 0.000 description 2
229910052839 forsterite Inorganic materials 0.000 description 2
ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 description 2
235000014380 magnesium carbonate Nutrition 0.000 description 2
HCWCAKKEBCNQJP-UHFFFAOYSA-N magnesium orthosilicate Chemical compound [Mg+2].[Mg+2].[O-][Si]([O-])([O-])[O-] HCWCAKKEBCNQJP-UHFFFAOYSA-N 0.000 description 2
238000002844 melting Methods 0.000 description 2
230000008018 melting Effects 0.000 description 2
239000011490 mineral wool Substances 0.000 description 2
230000001590 oxidative effect Effects 0.000 description 2
239000010453 quartz Substances 0.000 description 2
150000003839 salts Chemical class 0.000 description 2
150000004760 silicates Chemical class 0.000 description 2
101150047856 Cav2 gene Proteins 0.000 description 1
235000008733 Citrus aurantifolia Nutrition 0.000 description 1
CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
229910002555 FeNi Inorganic materials 0.000 description 1
DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 1
229910000831 Steel Inorganic materials 0.000 description 1
235000011941 Tilia x europaea Nutrition 0.000 description 1
XIDZTBUKYKRKEW-UHFFFAOYSA-M [Cr](=O)([O-])[O-].C([O-])(O)=O.[Ca+2].C(O)(O)=O.[Na+] Chemical compound [Cr](=O)([O-])[O-].C([O-])(O)=O.[Ca+2].C(O)(O)=O.[Na+] XIDZTBUKYKRKEW-UHFFFAOYSA-M 0.000 description 1
239000003513 alkali Substances 0.000 description 1
229910052783 alkali metal Inorganic materials 0.000 description 1
150000001340 alkali metals Chemical class 0.000 description 1
150000004645 aluminates Chemical class 0.000 description 1
SNAAJJQQZSMGQD-UHFFFAOYSA-N aluminum magnesium Chemical compound [Mg].[Al] SNAAJJQQZSMGQD-UHFFFAOYSA-N 0.000 description 1
239000010953 base metal Substances 0.000 description 1
230000015572 biosynthetic process Effects 0.000 description 1
BCFSVSISUGYRMF-UHFFFAOYSA-N calcium;dioxido(dioxo)chromium;dihydrate Chemical compound O.O.[Ca+2].[O-][Cr]([O-])(=O)=O BCFSVSISUGYRMF-UHFFFAOYSA-N 0.000 description 1
239000004568 cement Substances 0.000 description 1
230000008859 change Effects 0.000 description 1
239000007795 chemical reaction product Substances 0.000 description 1
ZCDOYSPFYFSLEW-UHFFFAOYSA-N chromate(2-) Chemical compound [O-][Cr]([O-])(=O)=O ZCDOYSPFYFSLEW-UHFFFAOYSA-N 0.000 description 1
150000004700 cobalt complex Chemical class 0.000 description 1
239000000567 combustion gas Substances 0.000 description 1
229910052593 corundum Inorganic materials 0.000 description 1
239000013078 crystal Substances 0.000 description 1
230000000694 effects Effects 0.000 description 1
238000005265 energy consumption Methods 0.000 description 1
238000005516 engineering process Methods 0.000 description 1
230000007613 environmental effect Effects 0.000 description 1
238000001704 evaporation Methods 0.000 description 1
230000008020 evaporation Effects 0.000 description 1
239000012467 final product Substances 0.000 description 1
239000000446 fuel Substances 0.000 description 1
238000000227 grinding Methods 0.000 description 1
230000036541 health Effects 0.000 description 1
238000010438 heat treatment Methods 0.000 description 1
229910052595 hematite Inorganic materials 0.000 description 1
239000011019 hematite Substances 0.000 description 1
UCNNJGDEJXIUCC-UHFFFAOYSA-L hydroxy(oxo)iron;iron Chemical compound [Fe].O[Fe]=O.O[Fe]=O UCNNJGDEJXIUCC-UHFFFAOYSA-L 0.000 description 1
PNXOJQQRXBVKEX-UHFFFAOYSA-N iron vanadium Chemical compound [V].[Fe] PNXOJQQRXBVKEX-UHFFFAOYSA-N 0.000 description 1
LIKBJVNGSGBSGK-UHFFFAOYSA-N iron(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Fe+3].[Fe+3] LIKBJVNGSGBSGK-UHFFFAOYSA-N 0.000 description 1
239000004571 lime Substances 0.000 description 1
229910052749 magnesium Inorganic materials 0.000 description 1
239000011777 magnesium Substances 0.000 description 1
239000006148 magnetic separator Substances 0.000 description 1
239000003921 oil Substances 0.000 description 1
230000003647 oxidation Effects 0.000 description 1
238000007254 oxidation reaction Methods 0.000 description 1
239000000843 powder Substances 0.000 description 1
238000007670 refining Methods 0.000 description 1
229910052708 sodium Inorganic materials 0.000 description 1
229910000029 sodium carbonate Inorganic materials 0.000 description 1
PXLIDIMHPNPGMH-UHFFFAOYSA-N sodium chromate Chemical compound [Na+].[Na+].[O-][Cr]([O-])(=O)=O PXLIDIMHPNPGMH-UHFFFAOYSA-N 0.000 description 1
229910052938 sodium sulfate Inorganic materials 0.000 description 1
235000011152 sodium sulphate Nutrition 0.000 description 1
239000011343 solid material Substances 0.000 description 1
239000000243 solution Substances 0.000 description 1
239000002915 spent fuel radioactive waste Substances 0.000 description 1
239000010959 steel Substances 0.000 description 1
229910001845 yogo sapphire Inorganic materials 0.000 description 1

Classifications

- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B13/00—Making spongy iron or liquid steel, by direct processes
- C21B13/08—Making spongy iron or liquid steel, by direct processes in rotary furnaces
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B21/00—Obtaining aluminium
- C22B21/02—Obtaining aluminium with reducing
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B23/00—Obtaining nickel or cobalt
- C22B23/02—Obtaining nickel or cobalt by dry processes
- C22B23/023—Obtaining nickel or cobalt by dry processes with formation of ferro-nickel or ferro-cobalt
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B34/00—Obtaining refractory metals
- C22B34/10—Obtaining titanium, zirconium or hafnium
- C22B34/12—Obtaining titanium or titanium compounds from ores or scrap by metallurgical processing; preparation of titanium compounds from other titanium compounds see C01G23/00 - C01G23/08
- C22B34/1263—Obtaining titanium or titanium compounds from ores or scrap by metallurgical processing; preparation of titanium compounds from other titanium compounds see C01G23/00 - C01G23/08 obtaining metallic titanium from titanium compounds, e.g. by reduction
- C22B34/1281—Obtaining titanium or titanium compounds from ores or scrap by metallurgical processing; preparation of titanium compounds from other titanium compounds see C01G23/00 - C01G23/08 obtaining metallic titanium from titanium compounds, e.g. by reduction using carbon containing agents, e.g. C, CO, carbides
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B34/00—Obtaining refractory metals
- C22B34/20—Obtaining niobium, tantalum or vanadium
- C22B34/22—Obtaining vanadium
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B34/00—Obtaining refractory metals
- C22B34/30—Obtaining chromium, molybdenum or tungsten
- C22B34/32—Obtaining chromium
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B47/00—Obtaining manganese
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B5/00—General methods of reducing to metals
- C22B5/02—Dry methods smelting of sulfides or formation of mattes
- C22B5/10—Dry methods smelting of sulfides or formation of mattes by solid carbonaceous reducing agents

Landscapes

Chemical & Material Sciences (AREA)
Engineering & Computer Science (AREA)
Organic Chemistry (AREA)
Materials Engineering (AREA)
Metallurgy (AREA)
Manufacturing & Machinery (AREA)
Mechanical Engineering (AREA)
Life Sciences & Earth Sciences (AREA)
Environmental & Geological Engineering (AREA)
General Life Sciences & Earth Sciences (AREA)
Geology (AREA)
Manufacture And Refinement Of Metals (AREA)
Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Compounds Of Iron (AREA)

FI810185A 1981-01-23 1981-01-23 Foerfarande foer utnyttjande av fattiga oxidiska och jaernhaltiga komplexmalmer eller -koncentrat FI64648C (fi)

Priority Applications (8)

Application Number	Priority Date	Filing Date	Title
FI810185A FI64648C (fi)	1981-01-23	1981-01-23	Foerfarande foer utnyttjande av fattiga oxidiska och jaernhaltiga komplexmalmer eller -koncentrat
AU79295/82A AU536996B2 (en)	1981-01-23	1982-01-08	Exploitation of low-grade oxidic and iron-bearing complex ores or concentrates
ZA82116A ZA82116B (en)	1981-01-23	1982-01-08	Process for the exploitation of low-grade oxidic and iron-bearing complex ores or concentrates
PH26749A PH20690A (en)	1981-01-23	1982-01-18	Process for the exploitation of low-grade oxidic and iron-bearing complex ores or concentrates
BR8200310A BR8200310A (pt)	1981-01-23	1982-01-21	Processo para o aproveitamento de concentrados ou minerios complexos oxidados que contem ferro de baixo teor
NO820177A NO157664C (no)	1981-01-23	1982-01-21	Fremgangsmaate for utnyttelse av fattige oksydiske og jernholdige komplekse malmer eller konsentrater.
CA000394738A CA1180904A (en)	1981-01-23	1982-01-22	Process for the exploitation of low-grade oxidic and iron-bearing complex ores or concentrates
US06/843,069 US4740239A (en)	1981-01-23	1986-05-27	Process for exploitation of low grade oxidic and iron-bearing complex ores or concentrates

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
FI810185		1981-01-23
FI810185A FI64648C (fi)	1981-01-23	1981-01-23	Foerfarande foer utnyttjande av fattiga oxidiska och jaernhaltiga komplexmalmer eller -koncentrat

Publications (3)

Publication Number	Publication Date
FI810185L FI810185L (fi)	1982-07-24
FI64648B FI64648B (fi)	1983-08-31
FI64648C true FI64648C (fi)	1983-12-12

Family

ID=8514066

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FI810185A FI64648C (fi)	1981-01-23	1981-01-23	Foerfarande foer utnyttjande av fattiga oxidiska och jaernhaltiga komplexmalmer eller -koncentrat

Country Status (8)

Country	Link
US (1)	US4740239A (pt)
AU (1)	AU536996B2 (pt)
BR (1)	BR8200310A (pt)
CA (1)	CA1180904A (pt)
FI (1)	FI64648C (pt)
NO (1)	NO157664C (pt)
PH (1)	PH20690A (pt)
ZA (1)	ZA82116B (pt)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FI961306L (fi) *	1993-09-22	1996-03-21	Rgc Mineral Sands Ltd	Titaanipitoisten aineiden pasutus
CN101426938B (zh) *	2007-01-31	2010-06-02	中国科学院过程工程研究所	一种钢材防氧化涂料及钢材的防氧化方法
US7478727B2 (en) *	2007-05-18	2009-01-20	Outotec Oyj	Hot magnetic separator process and apparatus
WO2011001282A2 (en)	2009-06-29	2011-01-06	Bairong Li	Metal reduction processes, metallurgical processes and products and apparatus

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2026683A (en) *	1934-05-22	1936-01-07	Krupp Ag Grusonwerk	Treating ferriferous ores
US2805930A (en) *	1953-03-10	1957-09-10	Strategic Udy Metallurg & Chem	Process of producing iron from iron-oxide material
US2986459A (en) *	1959-12-04	1961-05-30	Strategic Udy Metallurgical & Chemical Processes Ltd	Metallurgical process

1981
- 1981-01-23 FI FI810185A patent/FI64648C/fi not_active IP Right Cessation
1982
- 1982-01-08 AU AU79295/82A patent/AU536996B2/en not_active Ceased
- 1982-01-08 ZA ZA82116A patent/ZA82116B/xx unknown
- 1982-01-18 PH PH26749A patent/PH20690A/en unknown
- 1982-01-21 NO NO820177A patent/NO157664C/no unknown
- 1982-01-21 BR BR8200310A patent/BR8200310A/pt unknown
- 1982-01-22 CA CA000394738A patent/CA1180904A/en not_active Expired
1986
- 1986-05-27 US US06/843,069 patent/US4740239A/en not_active Expired - Fee Related

Also Published As

Publication number	Publication date
ZA82116B (en)	1982-12-29
AU7929582A (en)	1982-09-02
NO820177L (no)	1982-07-26
NO157664C (no)	1988-04-27
AU536996B2 (en)	1984-05-31
FI810185L (fi)	1982-07-24
FI64648B (fi)	1983-08-31
NO157664B (no)	1988-01-18
US4740239A (en)	1988-04-26
BR8200310A (pt)	1982-11-23
CA1180904A (en)	1985-01-15
PH20690A (en)	1987-03-24

Legal Events

Date	Code	Title	Description
2004-08-31	MM	Patent lapsed	Owner name: OUTOKUMPU OY

Publication	Publication Date	Title
US4260414A (en)	1981-04-07	Process for recovering and utilizing useful substances from molten metal produced during reduction treatment of steel slag
RU2226220C2 (ru)	2004-03-27	Способ переработки шлаков от производства стали
US5516357A (en)	1996-05-14	Process for producing cement from metallurgical slag
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