CN103627901B - For making steel containing the silica-based iron alloy of ambrose alloy and preparation method - Google Patents
For making steel containing the silica-based iron alloy of ambrose alloy and preparation method Download PDFInfo
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- CN103627901B CN103627901B CN201310657163.2A CN201310657163A CN103627901B CN 103627901 B CN103627901 B CN 103627901B CN 201310657163 A CN201310657163 A CN 201310657163A CN 103627901 B CN103627901 B CN 103627901B
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Abstract
The invention provides a kind of Novel steelmaking alloy---containing silica-based iron alloy and the preparation method of ambrose alloy.By the oxidized ore of nickel and copper and sulphide ores, add to by proportioning in the furnace charge of silica-based iron alloy, make reductive agent with carbon, in electric reduction furnace reducing and smelting make containing the silica-based complex ferroalloy of ambrose alloy.Silica-based iron alloy refers in alloying constituent, be main component with siliceous, siliceous 20%-70%, surplus is iron, also can contain one or more the complex ferroalloy in the barium of 5%-30%, calcium, aluminium, as iron alloys such as ferrosilicon, silicon barium iron, Si-Al-Ba-Fe, Si-Ca-Ba iron.Containing one or both in 2%-30% nickel, copper in these silica-based iron alloys, make the silica-based iron alloy containing nickel and copper and ambrose alloy.The present invention containing the silica-based iron alloy of ambrose alloy, for the alloying of deoxidation in steel making, desulfurization and nickel, copper, has good economic benefit and social benefit.
Description
Technical field
Of the present invention for making steel containing the silica-based iron alloy of ambrose alloy and preparation method, belong to chemical metallurgy technical field.
Background technology
Nickel, copper are steel-making main alloying elements materials, are widely used in the alloying constituent of the steel grades such as weathering steel, structure iron, stainless steel.At present, steel-making nickel, the nickel of copper alloy, copper, all use pure metal.Due to the metal of these two kinds of material production complex process, high energy consumption, high pollution, high cost.Therefore, expensive, increase steel-making cost.Now is at existing Rhometal for making steel nickelalloy, and it is raw materials used is only limited to nickel oxide ore.Because raw material restriction makes ferronickel price more expensive; Also there is copper-iron alloy in market, and it is a kind of alloy, instead of steel-making furnace charge; Also have ambrose alloy iron alloy, it is made through secondary fusion with ambrose alloy waste material.Present production nickel and copper are all that raw materials used is all sulphide ores, can not use oxidized ore with pyrometallurgical smelting.
The not nickeliferous and copper of existing silica-based iron alloy, only for the deoxidation of making steel and desulfurization, still lacks steel-making at deoxidization desulfuration simultaneously, realizes the material of corronel.
Summary of the invention
The object of the invention is to make raw material with the sulphide ores of ambrose alloy and oxidized ore, produce a kind of silica-based iron alloy of nickeliferous, copper by reduction method in mineral hot furnace, for the complex ferroalloy of deoxidation in steel making, desulfurization and nickel, copper alloy, substitute pure metallic nickel and copper, reach energy-saving and emission-reduction, reduce the object of steel-making cost.
The present invention is nickeliferous, the preparation method of the silica-based iron alloy of copper, by nickel sulfide ore or nickel oxide ore and copper-sulphide ores or copper oxide ore (containing tantalite power) raw materials used with silica-based iron alloy, with reductive agent-carbon etc., mix in its ratio and make furnace charge, drop into reducing and smelting in ore-smelting furnace and obtain.Nickel, copper and compound physico-chemical property thereof are very close, provide technical foundation for producing corronel.Sulphide ores copper smelting for copper: cupric sulfide (CuS) is when furnace temperature reaches more than 500 DEG C, and cupric sulfide is decomposed into cuprous sulfide, i.e. 4CuS → 2Cu
2s+S
2.cuprous sulfide, more than 1150 DEG C, is oxidized to CuO.Sulphur in ore and oxygen generate sulfurous gas effusion.Only have and transfer cupric sulfide to cupric oxide, just can carry out reducing and smelting.Cupric oxide is High Temperature Furnaces Heating Apparatus Inner formation reaction more than 1150 DEG C, i.e. 4CuO=2Cu
2o+O
2.cupric oxide is decomposed into Red copper oxide, and its reduction temperature reaches more than 2100 DEG C, could be reduced to copper by carbon, produces comparatively difficulty.Due in alloy of the present invention, siliceous, the element such as iron, barium, they and copper form alloy reduction temperature and are down to about 1800 DEG C, comparatively easily produce.The sulphide ores of nickel is also same principle, no longer separately tells.Sulfide (sulphide ores) fusing point less than 1500 DEG C decomposition under the high temperature of mineral hot furnace of nickel, copper, oxidation generates nickel oxide and copper gradually.Sulphur in sulphide ores generates sulfurous gas and becomes air scavenge, and a part combines with iron etc. carries out in slag.Reach more than 1800 DEG C at reduction temperature, under the effect of carbon, nickel oxide, copper resolve into metal and silicon, iron etc. form alloy, becomes nickeliferous, the elemental composition of the silica-based iron alloy of copper.
Nickeliferous and copper component is lower in the mineral of nickeliferous, copper, when not reaching iron alloy component requirements silica-based containing ambrose alloy, the mineral of available nickel, copper make ice nickel, matte (existing maturation process), then with silica-based iron alloy furnace charge, by proportioning condiment, then carry out reducing and smelting.The same ferrosilicon of production work used. most of nickel minerals and copper mine are mineral intergrowth, often claim cu-ni sulphide ore, containing a small amount of copper in nickel minerals, containing a small amount of nickel in copper mine.Therefore, also a small amount of nickel or copper can contained containing in the silica-based iron alloy of ambrose alloy.The sulphide ores of ambrose alloy and oxidized ore or tantalite power, before molten white silk, after the process such as drying, fragmentation, screening, add reductive agent and flux, as lime. Wingdale. and fluorite etc., roasting in rotary kiln.Make moisture in mineral be down to 3%, desulfurization 20--30%(mass percent, as follows), be conducive at electrosmelting.Sinter process is with present ambrose alloy ore deposit sinter process.
Without roasting mineral directly can be dropped in electric furnace and smelt, but when smelting, power consumption is higher.
Of the present invention containing in the silica-based iron alloy of ambrose alloy, one or both in the nickel containing 2%-30% and copper.Silica-based iron alloy refers to siliceous 20%--70%, and surplus is iron and impurity, can also contain one or more in the barium of 5%--30%, calcium, aluminium, as alloys such as ferrosilicon, silicon barium iron, Si-Al-Ba-Fe, silicon barium calcium iron.Containing one or both in nickel, copper in these silica-based iron alloys, be exactly of the present invention containing the silica-based iron alloy of ambrose alloy.As nisiloy iron, nisiloy barium iron, copper ferrosilicon, copper silicon barium iron, ambrose alloy silicon barium iron etc.
Embodiment
Below by specific embodiment, the present invention is described.
Embodiment 1
Ratio of components: based on 100kg silica, containing SiO
298%.Barite is containing BaSO
485%, 50kg.Pentlandite is containing Ni34%, Cu5%, Fe29%, S30%, and 50kg, coke is containing C82%, 90kg.Wingdale 90Kg, furnace size 5-40 ㎜.These furnace charges are mixed by proportioning, smelts 2 hours in input mineral hot furnace and come out of the stove, scarfing cinder casting mold.Ton power consumption 9200kw
.h.Continuous seepage.
Through chemical examination silicon barium Rhometal composition:
Si45%, Ba21%, Ni16%, Cu2%, impurity has C0.3%, S0.05%, P0.03%, and surplus is Fe.
Embodiment 2
Ratio of components: silica 100kg, barite 55kg, roasting chalcopyrite contain Cu29%, Fe23%, Ni9%, S11%, 50kg, coke 90kg, lime 8Kg.By above-mentioned furnace charge by its proportioning, mix, to drop in mineral hot furnace reducing and smelting 2 hours, come out of the stove, scarfing cinder, casting mold.
Silicon barium cunife composition:
Si43%, Ba15%, Cu19%, Ni6%, surplus is Fe and impurity.
Embodiment 3
Ratio of components: silica 100kg, barite 50kg, roasting pentlandite 20kg, roasting chalcopyrite 50kg, Wingdale 10Kg coke 100kg.Above-mentioned furnace charge is mixed by proportioning, drops in mineral hot furnace and smelt 2 hours, come out of the stove, scarfing cinder, casting mold.
Silicon barium ambrose alloy iron alloy composition:
Si38%, Ba19%, Cu15%, Ni7%, surplus is Fe and impurity.
Embodiment 4
Ratio of components: silica 100kg, barite 50kg, tenorite 60kg, containing CuO72%, converter mattes 50kg, containing Ni70%, steel cuttings 5kg, unslaked lime 50kg, drops in mineral hot furnace by proportioning containing CaO80%. coke 110kg ', smelts 2.5 hours and come out of the stove.Ton power consumption 11000kw
.h.
Silicon barium calcium ambrose alloy iron alloy composition:
Si31%, Ba14%, Ca6%, Ni19%, Cu18%, surplus is Fe and impurity.
Embodiment 5
Certain steel mill produces × 70 pipe line steels, and former ton steel ferro-aluminum 4kg deoxidation, adds nickel 2kg, copper 2kg, silico-calcium 1kg, and ton steel closes Renminbi about 350 yuan; With the embodiment of the present invention 4 silicon barium calcium ambrose alloy iron alloy, ton steel 6kg deoxidation, desulfurization, corronelization synchronously complete, and ton steel closes Renminbi about 330 yuan, and ton steel saves about 20 yuan, and steel quality reaches Standard.
Claims (1)
1. the silica-based iron alloy for making steel containing ambrose alloy, it is characterized in that: containing following mass percent silicon 31-38%, barium 14-21%, nickel 6-19%, copper 2-19%, surplus is iron and inevitable impurity.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310657163.2A CN103627901B (en) | 2013-12-09 | 2013-12-09 | For making steel containing the silica-based iron alloy of ambrose alloy and preparation method |
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|---|---|---|---|
| CN201310657163.2A CN103627901B (en) | 2013-12-09 | 2013-12-09 | For making steel containing the silica-based iron alloy of ambrose alloy and preparation method |
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| Publication Number | Publication Date |
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| CN103627901A CN103627901A (en) | 2014-03-12 |
| CN103627901B true CN103627901B (en) | 2016-02-24 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU565073A1 (en) * | 1975-09-15 | 1977-07-15 | Институт Проблем Литья Ан Украинской Сср | Alloy |
| SU541891A1 (en) * | 1975-10-27 | 1977-01-05 | Институт Проблем Литья Ан Украинской Сср | Ligature |
| SU565074A1 (en) * | 1975-11-10 | 1977-07-15 | Институт Проблем Литья Ан Украинской Сср | Alloy |
| SU765387A1 (en) * | 1978-08-28 | 1980-09-23 | Институт Проблем Литья Ан Украинской Сср | Modifier |
| SU876762A1 (en) * | 1979-11-16 | 1981-10-30 | Институт проблем литья АН УССР | Modifier |
| CN1180115C (en) * | 2002-02-05 | 2004-12-15 | 盛国大 | Fragile Ni-Fe alloy |
| CN1224727C (en) * | 2002-06-21 | 2005-10-26 | 常州武帆合金有限公司 | NiCuSiFe alloy |
| CN101812590A (en) * | 2010-04-15 | 2010-08-25 | 上海海事大学 | Method for producing Al-Si-Cu alloy by electric heating method |
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Granted publication date: 20160224 Termination date: 20161209 |