CN101775493B - Method for preparing silicon-barium-aluminum-calcium-titanium multicomponent alloy by directly reducing andalusite raw ore as material - Google Patents
Method for preparing silicon-barium-aluminum-calcium-titanium multicomponent alloy by directly reducing andalusite raw ore as material Download PDFInfo
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Abstract
The invention relates to a method for preparing silicon-barium-aluminum-calcium-titanium multicomponent alloy by directly reducing andalusite raw ore as material, belonging to the field of the production process of metal materials and composite ferroalloys for steel making. The method for preparing the silicon-barium-aluminum-calcium-titanium multicomponent alloy by directly reducing the andalusite raw ore as the material is characterized by comprising the following steps of: a, preparing ore; b, preparing a carbonaceous reducing agent; c, uniformly mixing the carbonaceous reducing agent and the ore; d, adding the mixed material into an ore heating arc furnace, controlling the temperature in the furnace to be 1950-2150 DEG C, and smelting the material in the furnace for 3-4h; and e, letting out rough-wrought silicon-barium-aluminum-calcium-titanium multicomponent alloy liquid to a tundish from a taphole every other 3-4h, adding refining flux in the tundish, deslagging and ingoting to obtain the finished product of the silicon-barium-aluminum-calcium-titanium multicomponent alloy. In the invention, the silicon-barium-aluminum-calcium-titanium multicomponent alloy is produced by taking the non-monohydrallite andalusite rough concentrate containing aluminum and silicon elements and gangue as raw materials, thereby not only the difficulties in the selection of ore raw materials are solved, but also original creation on the melting process is realized.
Description
Technical field
The present invention relates to a kind of method, belong to metallic substance and make steel with complex ferroalloy production technique field with andaluzite feedstock production silicon-barium-aluminum-calcium-titanium multicomponent alloy.
Background technology
Andaluzite is a kind of rich aluminium mineral, belongs to kyanite class mineral, is natural high aluminium silicate mineral, and chemical constitution is Al
2O
3SiO
2, molecular formula Al
2[SiO
4] O, rhombic system, column crystalline form, hardness 7-7.5, density 3.10-3.20.Mainly be distributed in countries such as South Africa, France, the nations of China and India, as the refractory materials of industry such as metallurgy, potting, cement, main country of consumption is countries such as the U.S., Japan, Russia, Germany and Britain by extensively.
It is that to use polynary composite alloy all be that employing bauxite is raw material for the deoxidation in steel making of principal element that domestic production at present contains aluminium and silicon.China's bauxite reserves only account for 2.4% of world's total amount, but year produced quantity accounts for 8% of world's exploitation total amount, and the speed of exploitation, consumption is greater than the speedup of proven reserve.In addition, China's bauxite resource unauthorized and excessive mining phenomenon is outstanding, and the rate of extraction is merely 40%, and the level well below external 80% causes domestic bauxite resource exploitation waste serious.Simultaneously, China's aluminum oxide scope of the enterprise is generally less, and production technique is backward relatively, and production cost exceeds the international average level more than 50%.The same Nonrenewable resources that belong to other mineral of bauxite are pressed alumina producing ability force evaluating the Eleventh Five-Year Plan period, and the domestic existing economy of having verified can supply about 13 years of the static duration of security of reserves, and the aluminium industrial development certainly will be subject to the restriction of resource.Statistical information shows, the external interdependency of Chinese bauxite supply from 2005 9.4% rise to rapidly 2006 26.2%.The raw-material in short supply even interruption of bauxite is with the sound development that directly influences the whole aluminium industry of China.Add that the blind investment of aluminum oxide project in recent years brings the extensive unordered exploitation of bauxite resource; The domestic original just bauxite resource of shortage is made the matter worse; Cause the aluminum industry in China native resource to ensure that the time limit significantly shortens; Very easily receive the impact of world market, very unfavorable to whole industry Sustainable development.
Electric heating process is produced aluminium silicon multielement composite alloy at present, does not still have and uses the production practice of andaluzite as raw material.
Summary of the invention
The objective of the invention is to avoid the weak point of prior art to provide a kind of andaluzite raw ore that uses directly to reduce the method for preparing silicon-barium-aluminum-calcium-titanium multicomponent alloy as raw material.The present invention is the polynary composite alloy of raw material production aluminium silicon with the andaluzite rough concentrate and the mine tailing of the non-bauxite that contains aluminium and element silicon, not only selects for use at the mineral raw material and has cracked a difficult problem, and on smelting technology, original creation is arranged also.The power consumption 10000KVh/t that this technology is per ton reduces by 10% than traditional technology power consumption 11000KWh/t, and the emission concentration of flue dust is 50 percent of a national standard, mainly is Al in the dust
2O
3And SiO
2, not producing public hazards, this technology has possessed characteristics such as comprehensive energy consumption is low, pollution is little, product with stable quality is superior.
Be to realize above-mentioned purpose, the technical scheme that the present invention takes is: a kind of andaluzite raw ore that uses directly reduces the method for preparing silicon-barium-aluminum-calcium-titanium multicomponent alloy as raw material, and its principal feature is: preparation process is following:
A. prepare ore: the andaluzite raw ore is 40-85% by weight percentage, and granularity is 10-100mm, calcic raw material 3-45%, and granularity is 10～80mm, ilmenite 5-50%, granularity is 10～80mm, barite deposit 10-55%, granularity is 10～80mm preparation;
B. prepare carbonaceous reducing agent: it is 3-10mm that carbonaceous reducing agent is prepared as granularity, and reductive agent is allocated into by the 60-110% that ore mixes gross weight after calculating; Also can calculate in the reductive agent in the fixed carbon and ore the content of oxide compound with the per-cent of the amount of allocating into of definite reductive agent by those skilled in the art's ordinary method.
C. with carbonaceous reducing agent and ore uniform mixing;
D. mixed material is joined in the thermic arc stove of ore deposit, temperature is controlled at 1950-2150 ℃ in the stove, and material was smelted in stove 3-4 hour;
E. at interval emitted rough silicon-barium-aluminum-calcium-titanium multicomponent alloy liquid from iron notch to tundish in 3-4 hour, add refining agent slagging-off back ingot casting, promptly obtain the finished product of silicon-barium-aluminum-calcium-titanium multicomponent alloy at tundish.
A kind of andaluzite raw ore that uses directly reduces the method for preparing silicon-barium-aluminum-calcium-titanium multicomponent alloy as raw material, and its principal feature is: preparation process is following:
A. prepare ore: the andaluzite raw ore is by weight percentage for 40-85%, and granularity be＜0.5mm, and the calcic raw material is 3-45%, and granularity is＜0.5mm, and ilmenite is 5-50%, and granularity is＜0.5mm, and barite deposit is 10-55%, and granularity is＜and 0.5mm prepares;
B. prepare carbonaceous reducing agent: be＜0.5mm that carbonaceous reducing agent is allocated into by the 60-100% that ore mixes gross weight with the carbonaceous reducing agent prepared sizes; Also can calculate in the reductive agent in the fixed carbon and ore the content of oxide compound with the per-cent of the amount of allocating into of definite reductive agent by those skilled in the art's ordinary method.
C. with carbonaceous reducing agent and ore uniform mixing, the material adding additives that mixes is carried out pressure ball, dry then, drying temperature is 300-400 ℃, and moisture is by weight percentage less than 1% in the material;
D. dried material is joined in the thermic arc stove of ore deposit, temperature is controlled at 1950-2150 ℃ in the stove, and material was smelted in stove 3-4 hour;
E. at interval emitted rough silicon-barium-aluminum-calcium-titanium multicomponent alloy liquid from iron notch to tundish in 3-4 hour, add refining agent slagging-off back ingot casting, promptly obtain the finished product of silicon-barium-aluminum-calcium-titanium multicomponent alloy at tundish.
The described andaluzite raw ore that uses directly reduces the method for preparing silicon-barium-aluminum-calcium-titanium multicomponent alloy as raw material, and also including described calcic raw material is calcite or quickened lime.
The described andaluzite raw ore that uses directly reduces the method for preparing silicon-barium-aluminum-calcium-titanium multicomponent alloy as raw material; Also include the mixture that described carbonaceous reducing agent is bituminous coal and refinery coke; Bituminous coal fixed carbon content >=50%; Refinery coke fixed carbon content >=92% has good chemically reactive and bigger ratio resistance, and the ratio of components of bituminous coal and refinery coke is 6-8: 2-4.
The described andaluzite raw ore that uses directly reduces the method for preparing silicon-barium-aluminum-calcium-titanium multicomponent alloy as raw material, Al in the described andalusite mine
2O
3Content is 25-53%, SiO
2Content 20-50%, ilmenite contains TiO
2Amount 10-15%, BaSiO in the barite deposit
4Content 80-85%, CaCO in the calcite
3>=98%.
The invention has the beneficial effects as follows: Si-Al-Ba-Ca is Ti alloyed to be the reductor and the sweetening agent of steel-making usefulness; It can make the oxygen in the steel drop to minimum; The complex oxide of the calcic that forms simultaneously, barium, silicon, titanium, aluminium; Form the macrobead slag and from molten steel, float, pure molten steel, the mechanical property and the processing characteristics of raising steel; In deoxidation, calcium and barium play desulfidation.
The present invention has following characteristics:
1, the Al of used andaluzite
2O
3And SiO
2Content is high, composite alloy is smelted in employing " single stage method " in ore-smelting furnace, and production cost is low, the mineral aggregate supply is in time abundant.
2, the inventor produces the polynary composite alloy of silicon-barium-aluminum-calcium-titanium and has adopted direct with granularity ore not ball press technique and two kinds of methods of ball press technique; The used granular andaluzite of ball press technique is not the mine direct production; Directly be used to smelt the raw material of usefulness; Practice thrift pressure ball series operation and binder material, reduced production cost significantly.
3, domestic production at present is that all to adopt bauxite be raw material to the principal element composite alloy with the aluminium silicone content; Bauxite is short mineral in China; The andalusite mine reserves that the inventor adopted are up to 200,000,000 tons, and raw material that present method adopts and technology meet the reasonable policy of utilizing of Mineral resources of country fully.
4, the said multielement composite alloy of this patent is that Steel industry deoxidation and microalloying are used efficient alloy, and the market requirement is widely arranged.
5, in the polynary composite alloy that this process method is produced, owing to contain the Ba element, alloy proportion can be up to 3.5-4.2g/cm
3, higher 1.5 times than the utilization ratio of general Al alloy reductor, the deoxidation utilization ratio of Al is up to 45% in this alloy, and the general utilization ratio of Al when deoxidation in steel making is 15-20%.A large amount of Al resources of practicing thrift.
Table 1 is the 5 tons of intermediate frequency furnace refinings in laboratory A
3Steel is with the Ti alloyed deoxidization desulfuration simultaneous test effect of carrying out with fine aluminium of Si-Al-Ba-Ca.
5 tons of intermediate frequency furnace refinings of table 1 A3 steel-deoxidizing desulfurization test effect
Test shows A per ton in the table 1
3Steel with the 0.3kg Si-Al-Ba-Ca Ti alloyed with the 0.25kg fine aluminium deoxidation compare with sulphur, oxygen content in steel MV has reduced by 21%, sulphur content MV has reduced by 67%.
Description of drawings
Fig. 1 is embodiments of the invention 1,2,3,4 schematic flow sheets.
Fig. 2 is embodiments of the invention 5,6,7 schematic flow sheets.
Embodiment:
Below in conjunction with embodiment principle of the present invention and characteristic are described, institute gives an actual example and only is used to explain the present invention, is not to be used to limit scope of the present invention.
Embodiment 1: a kind of andaluzite raw ore that uses directly reduces the method for preparing silicon-barium-aluminum-calcium-titanium multicomponent alloy as main raw material, and its principal feature is: preparation 138.25kg Si-Al-Ca-Ba titanium alloy step is following:
A. prepare ore: andaluzite raw ore by weight percentage 61%, granularity is 10～100mm, contains calcite 4%, granularity is 10～80mm, ilmenite 23%, granularity is 10～80mm, barite deposit 10%, granularity is 10～80mm preparation; Andaluzite nugget: 289.66kg; Tiff nugget: 45.56kg; Plain block of calcite: 22.08kg; Ilmenite sand: 111.45kg.
Al in the andalusite mine
2O
3Content is 35%, SiO
2Content 50%, ilmenite contains TiO
2Amount 15%, BaSiO in the barite deposit
4Content 80%, calcite CaCO
3>=98%.
B. prepare carbonaceous reducing agent: it is 3～10mm that carbonaceous reducing agent is prepared as granularity, and reductive agent mixes 90% of gross weight by ore and allocates into; Bituminous coal: 423kg: bituminous coal fixed carbon content 50%.
C. with carbonaceous reducing agent and ore uniform mixing;
D. mixed material is joined in the thermic arc stove of ore deposit, temperature is controlled at 1950-2150 ℃ in the stove, and material was smelted in stove 3-4 hour;
E. at interval emitted rough silicon-barium-aluminum-calcium-titanium multicomponent alloy liquid from iron notch to tundish in 3-4 hour, add the refining agent slagging-off at tundish, back ingot casting promptly obtains the finished product of silicon-barium-aluminum-calcium-titanium multicomponent alloy.
This alloy finished product is that main chemical compositions is: Si 34.98%, and Ca 6.43%, Ba9.52%, and Ti3.95%, Al 17.05%, and Fe 28.07%.Can satisfy company standard fully.
During actual production.Can andaluzite nugget, bituminous coal be mixed, add melting in the smelting furnace, produce silumin; Add calcite and bituminous coal then in batches, promote the formation of sial calcium; Add barium ore deposit and bituminous coal again, short its forms silicon aluminum calcium barium alloy in batches; Add ilmenite sand pelletizing and bituminous coal again, form the Si-Al-Ca-Ba titanium alloy and form.Also can all ore deposits be joined evenly in proportion, together with adding of bituminous coal.
Embodiment 2: a kind of andaluzite raw ore that uses directly reduces the method for preparing silicon-barium-aluminum-calcium-titanium multicomponent alloy as raw material, and its principal feature is: preparation process is following:
A. prepare ore: andaluzite raw ore by weight percentage 40%, granularity is 10～80mm, calcite 20%, granularity is 10～80mm, ilmenite 15%, granularity is 10～80mm, barite deposit 25%, granularity is 10～80mm preparation; Andaluzite nugget: 660kg; Tiff nugget: 412kg; Calcite: 412kg; Ilmenite sand: 247kg.
Al in the andalusite mine
2O
3Content is 50%, SiO
2Content 25%, ilmenite contains TiO
2Amount 15%, BaSiO in the barite deposit
4Content 85%, CaCO in the calcite
3>=98%.
B. prepare carbonaceous reducing agent: it is 3～10mm that carbonaceous reducing agent is prepared as granularity, and reductive agent mixes 80 of gross weight by ore and allocates into; 1350kg presses the mixture of bituminous coal and refinery coke, bituminous coal fixed carbon content 45%, refinery coke fixed carbon content 92%, and the ratio of components of bituminous coal and refinery coke is 6: 4.
C. with carbonaceous reducing agent and ore uniform mixing;
D. mixed material is joined in the thermic arc stove of ore deposit, temperature is controlled at 1950-2150 ℃ in the stove, and material was smelted in stove 3-4 hour;
E. at interval emitted rough silicon-barium-aluminum-calcium-titanium multicomponent alloy liquid from iron notch to tundish in 3-4 hour, add the refining agent slagging-off at tundish, back ingot casting promptly obtains the finished product of silicon-barium-aluminum-calcium-titanium multicomponent alloy.
Embodiment 3: a kind of andaluzite raw ore that uses directly reduces the method for preparing silicon-barium-aluminum-calcium-titanium multicomponent alloy as raw material, and its principal feature is: preparation process is following:
A. prepare ore: andaluzite raw ore by weight percentage 75%, granularity is 20-60mm, calcite 5%, granularity is 10～80mm, ilmenite 10%, granularity is 10～80mm, barite deposit 10%, granularity is 10～80mm preparation;
B. prepare carbonaceous reducing agent: it is 3-10mm that carbonaceous reducing agent is prepared as granularity, and reductive agent is allocated into by the 60-110% that ore mixes gross weight after calculating;
Al in the andalusite mine
2O
3Content is 50%, SiO
2Content 25%, ilmenite contains TiO
2Amount 15%, BaSiO in the barite deposit
4Content 85%, CaCO in the calcite
3>=98%.
B. prepare carbonaceous reducing agent: it is 3～10mm that carbonaceous reducing agent is prepared as granularity, and reductive agent calculates in the reductive agent in the fixed carbon and ore the content of oxide compound with the per-cent of the amount of allocating into of definite reductive agent by those skilled in the art's ordinary method; Press the mixture of bituminous coal and refinery coke, bituminous coal fixed carbon content 45%, refinery coke fixed carbon content 92%, the ratio of components of bituminous coal and refinery coke is 6: 4.
C. with carbonaceous reducing agent and ore uniform mixing;
D. mixed material is joined in the thermic arc stove of ore deposit, temperature is controlled at 1950-2150 ℃ in the stove, and material was smelted in stove 3-4 hour;
E. at interval emitted rough silicon-barium-aluminum-calcium-titanium multicomponent alloy liquid from iron notch to tundish in 3-4 hour, add the refining agent slagging-off at tundish, back ingot casting promptly obtains the finished product of silicon-barium-aluminum-calcium-titanium multicomponent alloy.
Embodiment 4: a kind of andaluzite raw ore that uses directly reduces the method for preparing silicon-barium-aluminum-calcium-titanium multicomponent alloy as raw material, and described calcic raw material is a quickened lime.All the other steps are identical with embodiment 1-3.
Embodiment 5: a kind of andaluzite raw ore that uses directly reduces the method for preparing silicon-barium-aluminum-calcium-titanium multicomponent alloy as raw material, and its principal feature is: preparation process is following:
A. prepare ore:
Andaluzite raw ore by weight percentage 60%, 241kg, granularity is 0-3mm; Calcite 8%, 39kg, granularity is 0-3mm; Ilmenite 22%, 109kg, granularity is 0-3mm; Barite deposit 10%, 49kg, granularity is the 0-3mm preparation.
Al in the andalusite mine
2O
3Content is 35.77%, SiO
251.86%, contain CaCO in the calcite
3Be 98%.Ilmenite contains TiO
2Amount 14.23%, BaSiO in the barite deposit
4Content 88.52%.
B. prepare carbonaceous reducing agent: with the carbonaceous reducing agent prepared sizes is 0-3mm, and carbonaceous reducing agent mixes 60% of gross weight by ore and allocates into; Bituminous coal 295kg, bituminous coal fixed carbon content 48%.
C. with carbonaceous reducing agent and ore uniform mixing, the material adding additives that mixes is carried out pressure ball,
Briquetting: the various raw materials by the prescription weighing mix in the mechanical stirring ball mill, and churning time is 30min.The furnace charge that mixes is added water or adding additives paper pulp, on the shaper of laboratory, be pressed into two kinds of spheries, the small-scale test appearance in carbon tube furnace is a right cylinder, and briquetting pressure is 30Mpa, and agglomerate is φ 20mm * 60mm right cylinder; Test appearance is a spheroid on multifunctional sintering furnace, and briquetting pressure is 30Mpa, and agglomerate is a spheroid, major axis 6cm, minor axis cm.
This test adopts electrically heated drying cabinet that pelletizing is carried out drying and dehydrating, and the pelletizing water cut drops to below 1%.Drying temperature is 300 ℃, and the time is 2h.
The wet bulb dropping strength: 0.7 meter secondary does not break; Green-ball maximum compressive strength: 400kg/cm
2Shatter strength of green pellet: 5 meters once do not break; Hot strength: 1000 ℃ of not efflorescence.
D. dried material is joined in the thermic arc stove of ore deposit, temperature is controlled at 1950-2150 ℃ in the stove, and material was smelted in stove 3-4 hour;
Dissimilar pelletizings after the drying are carried out condition test at 20W power frequency carbon tube furnace, and expanding test is carried out on multifunctional sintering furnace, and 10kg elliposoidal test appearance is put into carbon crucible; Place sintering oven; According to working specification, vacuumize and be warmed up to 2100 ℃ after reaching 2Pa, insulation 4h.Then, drop to room temperature and take out carbon crucible,, with thick silicon-barium-aluminum-calcium-titanium multicomponent alloy refining slagging-off, carry out X-ray diffraction analysis, sem energy spectrum analysis and chemical analysis more respectively with slag and silicon-barium-aluminum-calcium-titanium multicomponent alloy weighing.
E. at interval emitted rough silicon-barium-aluminum-calcium-titanium multicomponent alloy liquid from iron notch to tundish in 3-4 hour, add the refining agent slagging-off at tundish, back ingot casting promptly obtains the finished product of silicon-barium-aluminum-calcium-titanium multicomponent alloy.
Embodiment 6:
A, trial production are carried out in the medium-sized ore-smelting furnace of 3000KVA, and the ore of employing is main with andaluzite, adapted calcite, tiff, ilmenite, iron powder, and reductive agent is used bituminous coal.
The ore proportion of composing is: andalusite mine 1000kg, calcite 100kg, ilmenite 100kg, barite deposit 200kg, the total batch weight is 1500kg, bituminous coal 1600kg.
Andaluzite composition: Al
2O
351%, SiO
230%, Fe
2O
318%.GIFf: BaSO
485%, calcite: CaCO
395%, ilmenite: TiO
216%.
B, powder process pressure ball
Various ores and reductive agent bituminous coal are broken into the 1-3mm powder, and even batch mixing in disk mixer, and add about 10% paper pulp sticker is pressed into the ball of diameter 30mm in powerful ball press, and oven dry 10 hours is for use under 350 ℃ of temperature.Green-ball lands to test at 1m and does not break ultimate compression strength 350kg/cm twice
2, heat 1000 ℃ of not efflorescence and do not break.
C goes into stove and smelts: by the batch of material proportioning manual work of ball material is joined in the 3000KVA ore-smelting furnace and smelt, adopt the anneal heating process, 4.5 hours tap to tap time of every stove; Twice smoldering during this time, about about 2100 ℃ of furnace temperature is smelted and is opened iron notch after 4-4.5 hour and tap a blast furnace in hot metal ladle; Carry out the alloy casting through the overhead traveling crane bull ladle; Alloy thickness after sampling detects Al, Si, Fe principal element composition, is broken into 10-30mm granularity pack delivery with alloy less than 80mm.
Alloying constituent: Al 33%, Si 36%, Ca 3%, Ba 5%, Ti 1%,
D, the total ore deposit of ton alloy consumption: 1320kg, bituminous coal 1200kg, power consumption 11000kwh/t.
Embodiment 7: a kind of andaluzite raw ore that uses directly reduces the method for preparing silicon-barium-aluminum-calcium-titanium multicomponent alloy as raw material, and described calcic raw material is a quickened lime.All the other steps are identical with embodiment 5-6.
The above is merely preferred embodiment of the present invention, and is in order to restriction the present invention, not all within spirit of the present invention and principle, any modification of being done, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (3)
1. one kind is that raw material directly reduces the method for preparing silicon-barium-aluminum-calcium-titanium multicomponent alloy with the andaluzite raw ore, and it is characterized in that: preparation process is following:
A. prepare ore: the andaluzite raw ore is 40-85% by weight percentage, and granularity is 10-100mm, calcic raw material 3-45%, and granularity is 10～80mm, ilmenite 5-50%, granularity is 10～80mm, barite deposit 10-55%, granularity is 10～80mm preparation;
B. prepare carbonaceous reducing agent: it is 3-10mm that carbonaceous reducing agent is prepared as granularity, and reductive agent is allocated into by the 60-110% that ore mixes gross weight after calculating;
C. with carbonaceous reducing agent and ore uniform mixing;
D. mixed material is joined in the thermic arc stove of ore deposit, temperature is controlled at 1950-2150 ℃ in the stove, and material was smelted in stove 3-4 hour;
E. at interval emitted rough silicon-barium-aluminum-calcium-titanium multicomponent alloy liquid from iron notch to tundish in 3-4 hour, add refining agent slagging-off back ingot casting, promptly obtain the finished product of silicon-barium-aluminum-calcium-titanium multicomponent alloy at tundish;
Described carbonaceous reducing agent is the mixture of bituminous coal and refinery coke, bituminous coal fixed carbon content>=50%, and refinery coke fixed carbon content>=92%, the ratio of components of bituminous coal and refinery coke is 6-8: 2-4; Al in the described andalusite mine
2O
3Content is 25-53%, SiO
2Content 20-50%, ilmenite contains TiO
2Amount 10-15%, BaSiO in the barite deposit
4Content 80-85%, CaCO in the calcite
3>=98%.
2. one kind is that raw material directly reduces the method for preparing silicon-barium-aluminum-calcium-titanium multicomponent alloy with the andaluzite raw ore, and it is characterized in that: preparation process is following:
A. prepare ore: the andaluzite raw ore is by weight percentage for 40-85%, and granularity be＜0.5mm, and the calcic raw material is 3-45%, and granularity is＜0.5mm, and ilmenite is 5-50%, and granularity is＜0.5mm, and barite deposit is 10-55%, and granularity is＜and 0.5mm prepares;
B. prepare carbonaceous reducing agent: be＜0.5mm that carbonaceous reducing agent is allocated into by the 60-100% that ore mixes gross weight with the carbonaceous reducing agent prepared sizes;
C. with carbonaceous reducing agent and ore uniform mixing, the material adding additives that mixes is carried out pressure ball, dry then, drying temperature is 300-400 ℃, and moisture is by weight percentage less than 1% in the material;
D. dried material is joined in the thermic arc stove of ore deposit, temperature is controlled at 1950-2150 ℃ in the stove, and material was smelted in stove 3-4 hour;
E. at interval emitted rough silicon-barium-aluminum-calcium-titanium multicomponent alloy liquid from iron notch to tundish in 3-4 hour, add refining agent slagging-off back ingot casting, promptly obtain the finished product of silicon-barium-aluminum-calcium-titanium multicomponent alloy at tundish.
3. according to claim 1 or claim 2 the andaluzite raw ore that uses directly reduces the method for preparing silicon-barium-aluminum-calcium-titanium multicomponent alloy as raw material, and it is characterized in that also including described calcic raw material is calcite or quickened lime.
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| EP3818183A4 (en) * | 2018-07-03 | 2022-03-30 | Bozel Brasil Sa | Calcium, aluminum and silicon alloy, as well as a process for the production of the same |
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| CN1594612A (en) * | 2004-07-12 | 2005-03-16 | 北京炎黄投资管理有限公司 | Method for producing aluminum-silicon alloy using andalusite as raw material |
| CN1605644A (en) * | 2004-11-23 | 2005-04-13 | 北京炎黄投资管理有限公司 | Combined reducer for producing aluminum silicon alloy with andalusite as raw materials |
| CN1821429A (en) * | 2006-03-23 | 2006-08-23 | 北京炎黄投资管理有限公司 | Method for producing aluminium enriched slag for extracting aluminium oxide and silicon-iron alloy |
-
2010
- 2010-01-08 CN CN2010100032555A patent/CN101775493B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US3860415A (en) * | 1972-08-02 | 1975-01-14 | Ethyl Corp | Process for preparing aluminum |
| CN1160085A (en) * | 1996-03-18 | 1997-09-24 | 景占义 | Method for direct production of Si-Al-Ba-Ca-Fe Alloy from ore |
| CN1594612A (en) * | 2004-07-12 | 2005-03-16 | 北京炎黄投资管理有限公司 | Method for producing aluminum-silicon alloy using andalusite as raw material |
| CN1605644A (en) * | 2004-11-23 | 2005-04-13 | 北京炎黄投资管理有限公司 | Combined reducer for producing aluminum silicon alloy with andalusite as raw materials |
| CN1821429A (en) * | 2006-03-23 | 2006-08-23 | 北京炎黄投资管理有限公司 | Method for producing aluminium enriched slag for extracting aluminium oxide and silicon-iron alloy |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3818183A4 (en) * | 2018-07-03 | 2022-03-30 | Bozel Brasil Sa | Calcium, aluminum and silicon alloy, as well as a process for the production of the same |
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