CN107699652A - A kind of reducing agent for reducing iron ore - Google Patents
A kind of reducing agent for reducing iron ore Download PDFInfo
- Publication number
- CN107699652A CN107699652A CN201710913592.XA CN201710913592A CN107699652A CN 107699652 A CN107699652 A CN 107699652A CN 201710913592 A CN201710913592 A CN 201710913592A CN 107699652 A CN107699652 A CN 107699652A
- Authority
- CN
- China
- Prior art keywords
- parts
- reducing agent
- iron ore
- reducing
- coal
- 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.)
- Pending
Links
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
- C21B13/0066—Preliminary conditioning of the solid carbonaceous reductant
-
- 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
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Manufacture Of Iron (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
It is parts by weight the invention discloses a kind of reducing agent for reducing iron ore, including following component：10~20 parts of simple substance carbon, 70~80 parts of coal, 4~5 parts of lime stone, 2~3 parts of sodium hydroxide.Brown iron and hematite reduction generation DRI can be improved the utilization rate of brown iron and hematite, produce huge economic benefit by the present invention；Relative to using fat coal cost is reduced as reducing agent, the present invention；The DRI that the present invention obtains is not required to fine grinding, you can reaches good magnetic separation effect, is effectively improved production efficiency, reduces production cost.
Description
Technical field
The present invention relates to a kind of reducing agent, specifically a kind of reducing agent for reducing iron ore, belong to reduction of iron ore
Technical field.
Background technology
With not very developing for social economy, all trades and professions are increasing to the demand of steel, the deposit of iron ore deposit
Chinese society expanding economy is very significant considering that.The iron ore deposit deposit wretched insufficiency in China, and lean ore is more, rich ore
It is few, can not largely develop, cause the very big wasting of resources, at present, iron ore needed for China about half be all rely on from
External import, China's economic development is seriously govern, have become China's urgent problem to be solved.Can be to poor if working out
Iron ore reduction iron has the reducing agent of good action, will be to promoting China's economy and social development significant.
The content of the invention
For problems of the prior art, it is an object of the invention to provide a kind of reduction for reducing iron ore
Agent, the reducing agent is reduced into iron with enabling to iron ore higher rate, and forms simply, and cost is cheap.
To achieve these goals, the technical scheme is that：A kind of reducing agent for reducing iron ore, including such as
Lower component, is parts by weight：10~20 parts of simple substance carbon, 70~80 parts of coal, 4~5 parts of lime stone, 2~3 parts of sodium hydroxide.
Preferably, a kind of reducing agent for reducing iron ore, including following component, are parts by weight：10 parts of simple substance carbon,
70 parts of coal, 4 parts of lime stone, 2 parts of sodium hydroxide.
Preferably, a kind of reducing agent for reducing iron ore, including following component, are parts by weight：20 parts of simple substance carbon,
80 parts of coal, 5 parts of lime stone, 3 parts of sodium hydroxide.
Preferably, a kind of reducing agent for reducing iron ore, including following component, are parts by weight：15 parts of simple substance carbon,
75 parts of coal, 4.5 parts of lime stone, 2.5 parts of sodium hydroxide.
Beneficial effects of the present invention：Can by brown iron and hematite reduction generation DRI, improve brown iron and
The utilization rate of hematite, generate huge economic benefit；Relative to using fat coal as reducing agent, present invention reduces
Cost；The DRI that the present invention obtains is not required to fine grinding, you can reaches good magnetic separation effect, is effectively improved production effect
Rate, reduce production cost.
Embodiment
The present invention is further described below.
A kind of reducing agent for reducing iron ore, including following component, are parts by weight：10~20 parts of simple substance carbon, coal
70~80 parts, 4~5 parts of lime stone, 2~3 parts of sodium hydroxide.
Embodiment 1：
A kind of reducing agent for reducing iron ore, including following component, are parts by weight：10 parts of simple substance carbon, 70 parts of coal,
4 parts of lime stone, 2 parts of sodium hydroxide.
Described simple substance carbon is carbon crystal or graphite.
Described iron ore is brown iron and hematite.
Embodiment 2：
A kind of reducing agent for reducing iron ore, including following component, are parts by weight：20 parts of simple substance carbon, 80 parts of coal,
5 parts of lime stone, 3 parts of sodium hydroxide.
Remaining is the same as embodiment 1.
Embodiment 3：
A kind of reducing agent for reducing iron ore, including following component, are parts by weight：15 parts of simple substance carbon, 75 parts of coal,
4.5 parts of lime stone, 2.5 parts of sodium hydroxide.
Remaining is the same as embodiment 1.
The iron ore of same weight is reduced using above-described embodiment, embodiment 1 obtains iron recovery as 89.23%
DRI, embodiment 2 obtains the DRI that iron recovery is 87.56%, and embodiment 3 obtains iron recovery and be
89.94% DRI, therefore embodiment 3 is most preferred embodiment.
Claims (4)
- A kind of 1. reducing agent for reducing iron ore, it is characterised in that：It is parts by weight including following component：Simple substance carbon 10 ~20 parts, 70~80 parts of coal, 4~5 parts of lime stone, 2~3 parts of sodium hydroxide.
- 2. a kind of reducing agent for reducing iron ore according to claim 1, it is characterized in that：Including following component, For parts by weight：10 parts of simple substance carbon, 70 parts of coal, 4 parts of lime stone, 2 parts of sodium hydroxide.
- 3. a kind of reducing agent for reducing iron ore according to claim 1, it is characterized in that：Including following component, For parts by weight：20 parts of simple substance carbon, 80 parts of coal, 5 parts of lime stone, 3 parts of sodium hydroxide.
- 4. a kind of reducing agent for reducing iron ore according to claim 1, it is characterized in that：Including following component, For parts by weight：15 parts of simple substance carbon, 75 parts of coal, 4.5 parts of lime stone, 2.5 parts of sodium hydroxide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710913592.XA CN107699652A (en) | 2017-09-30 | 2017-09-30 | A kind of reducing agent for reducing iron ore |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710913592.XA CN107699652A (en) | 2017-09-30 | 2017-09-30 | A kind of reducing agent for reducing iron ore |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107699652A true CN107699652A (en) | 2018-02-16 |
Family
ID=61175801
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710913592.XA Pending CN107699652A (en) | 2017-09-30 | 2017-09-30 | A kind of reducing agent for reducing iron ore |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107699652A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113403440A (en) * | 2021-06-11 | 2021-09-17 | 张振逵 | Production process and equipment for virus-free sponge iron hydrogen carbon steel industrial chain |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101717851A (en) * | 2009-11-25 | 2010-06-02 | 杨光 | Mineral dressing reducing agent of lean-iron refractory ferric oxide minerals |
| CN102168159A (en) * | 2011-04-15 | 2011-08-31 | 北京科技大学 | Reducing agent for carrying out direct reduction roasting on limonite and hematite to produce reduced iron |
-
2017
- 2017-09-30 CN CN201710913592.XA patent/CN107699652A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101717851A (en) * | 2009-11-25 | 2010-06-02 | 杨光 | Mineral dressing reducing agent of lean-iron refractory ferric oxide minerals |
| CN102168159A (en) * | 2011-04-15 | 2011-08-31 | 北京科技大学 | Reducing agent for carrying out direct reduction roasting on limonite and hematite to produce reduced iron |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113403440A (en) * | 2021-06-11 | 2021-09-17 | 张振逵 | Production process and equipment for virus-free sponge iron hydrogen carbon steel industrial chain |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103290205B (en) | A process of separating iron and titanium in seaside titanomagnetite via direct reduction roasting by using coal | |
| CN106000655B (en) | A kind of method of selected scheelite under room temperature | |
| CN102876882A (en) | Method for recovering iron from rare-earth tailings and producing high-grade fine iron powder | |
| CN107058720A (en) | A kind of method that utilization low-grade complex iron ore prepares cementite | |
| CN108103309A (en) | A kind of converter dust-removing ash coal-pressing ball adhesive special | |
| CN102872968A (en) | Ore dressing method for separating ferrocolumbium | |
| CN107699652A (en) | A kind of reducing agent for reducing iron ore | |
| CN102168159B (en) | Reducing agent for carrying out direct reduction roasting on limonite and hematite to produce reduced iron | |
| CN204544334U (en) | Ceramic granule partial selective enhancement not heat treatment abrasion-proof backing block | |
| CN107586902B (en) | It is a kind of can effective reuse iron content waste resource blast furnace iron-making process | |
| CN104313229A (en) | Method for manufacturing high-phosphorus iron by using shaft furnace to directly reduce high phosphorus ore | |
| CN103468935B (en) | Production method of sinter containing high-crystal-water lump ore | |
| CN102925611B (en) | Method for modifying iron ore powder by composite additive to prevent sticking and defluidizing during fluidization reduction | |
| CN110512043A (en) | A kind of method of gas-based shaft kiln calcined limestone coproduction iron ore prereduction product | |
| CN204385230U (en) | A kind of device improving carbon monoxide content in converter gas recovery | |
| CN102925612A (en) | Method for extracting sponge iron from sulfate slag by reducing roasting of tunnel kiln | |
| CN103725871B (en) | Additive and method for strengthening separation of iron and manganese of high-ferromanganese ore | |
| CN107022678B (en) | Method for preparing ferronickel concentrate by selectively reducing laterite-nickel ore | |
| CN102994851A (en) | Low-carbon ferrochromium | |
| Luo et al. | Analysis of carbon emission reduction potential by clean coal technology in China | |
| CN102965153A (en) | Method for using metallurgical fume for coal gasification | |
| CN102874885A (en) | High-efficiency treating agent for sewage and wastewater of paper-making industry | |
| Lv et al. | Research on ore-proportioning optimization technology in sintering | |
| CN103074483A (en) | Comprehensive utilization method for ferroboron concentrates by virtue of selective reduction | |
| CN107827377A (en) | Modified cement formula |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180216 |