JPS5462913A - Manufacture of highly reduced chromium ore pellets - Google Patents
Manufacture of highly reduced chromium ore pelletsInfo
- Publication number
- JPS5462913A JPS5462913A JP12878377A JP12878377A JPS5462913A JP S5462913 A JPS5462913 A JP S5462913A JP 12878377 A JP12878377 A JP 12878377A JP 12878377 A JP12878377 A JP 12878377A JP S5462913 A JPS5462913 A JP S5462913A
- Authority
- JP
- Japan
- Prior art keywords
- pellets
- manufacture
- granulator
- substance
- sodium silicate
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
Links
- 239000008188 pellet Substances 0.000 title abstract 7
- 238000004519 manufacturing process Methods 0.000 title abstract 3
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 title 1
- 229910052804 chromium Inorganic materials 0.000 title 1
- 239000011651 chromium Substances 0.000 title 1
- 229910000863 Ferronickel Inorganic materials 0.000 abstract 2
- 239000004115 Sodium Silicate Substances 0.000 abstract 2
- 239000000843 powder Substances 0.000 abstract 2
- 239000002893 slag Substances 0.000 abstract 2
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 abstract 2
- 229910052911 sodium silicate Inorganic materials 0.000 abstract 2
- 239000000126 substance Substances 0.000 abstract 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract 1
- 239000011230 binding agent Substances 0.000 abstract 1
- 238000001354 calcination Methods 0.000 abstract 1
- WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical compound [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 abstract 1
- 229910052799 carbon Inorganic materials 0.000 abstract 1
- 239000003638 chemical reducing agent Substances 0.000 abstract 1
- 239000011248 coating agent Substances 0.000 abstract 1
- 238000000576 coating method Methods 0.000 abstract 1
- 239000000571 coke Substances 0.000 abstract 1
- 239000010436 fluorite Substances 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- GBCAVSYHPPARHX-UHFFFAOYSA-M n'-cyclohexyl-n-[2-(4-methylmorpholin-4-ium-4-yl)ethyl]methanediimine;4-methylbenzenesulfonate Chemical compound CC1=CC=C(S([O-])(=O)=O)C=C1.C1CCCCC1N=C=NCC[N+]1(C)CCOCC1 GBCAVSYHPPARHX-UHFFFAOYSA-M 0.000 abstract 1
- 239000002699 waste material Substances 0.000 abstract 1
Landscapes
- Manufacture And Refinement Of Metals (AREA)
Abstract
PURPOSE: To manufacture the title pellets of high strength by mixing Cr ore powder with a carbon reducing agent; forming the mixt. into pellets; and coating the suffaces of the pellets with ferronickel slag optionally mixed with a low m.p. substance.
CONSTITUTION: Cr ore and coke are pulverized to a predetermined mesh and blended so that the C content becomes 0.7W1.1 times as much as the amt. of C to be used according to the following equations; 7Cr2O3+27C→2Cr7C3+21CO, 7FeO+ 10C→Fe7C3+7CO. The blend is granulated to about 10W30 mm by a granulator using a binder such as sodium silicate, CMC or pulp waste liquor. The surface of the formed pellets are then coated with ferronickel slag powder optionally mixed wih a low m.p. substance such as sodium silicate or fluorite to 0.5W1 mm thickness in the granulator. The coated pellets are dried and reduced at a predetermined calcination temp. in a rotary kiln to manufacture prereduced pellets with high reduction rate.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12878377A JPS6053731B2 (en) | 1977-10-28 | 1977-10-28 | Production method of highly reduced chromium ore pellets |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12878377A JPS6053731B2 (en) | 1977-10-28 | 1977-10-28 | Production method of highly reduced chromium ore pellets |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5462913A true JPS5462913A (en) | 1979-05-21 |
| JPS6053731B2 JPS6053731B2 (en) | 1985-11-27 |
Family
ID=14993339
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12878377A Expired JPS6053731B2 (en) | 1977-10-28 | 1977-10-28 | Production method of highly reduced chromium ore pellets |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6053731B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010028932A1 (en) | 2008-09-11 | 2010-03-18 | Siemens Vai Metals Technologies Gmbh & Co | Process for producing agglomerates of finely particulate iron carriers |
-
1977
- 1977-10-28 JP JP12878377A patent/JPS6053731B2/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010028932A1 (en) | 2008-09-11 | 2010-03-18 | Siemens Vai Metals Technologies Gmbh & Co | Process for producing agglomerates of finely particulate iron carriers |
| KR20110057221A (en) | 2008-09-11 | 2011-05-31 | 지멘스 브이에이아이 메탈스 테크놀로지스 게엠베하 | Process for producing mass of fine particulate iron ore carrier |
| US8641799B2 (en) | 2008-09-11 | 2014-02-04 | Siemens Vai Metals Technologies Gmbh | Process for producing agglomerates of finely particulate iron carriers |
| RU2507275C2 (en) * | 2008-09-11 | 2014-02-20 | Сименс Фаи Металз Текнолоджиз Гмбх | Production method of agglomerates from fine iron carrier |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6053731B2 (en) | 1985-11-27 |
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