CN105349783A - Method for preparing acid-soluble titanium-rich material and iron powder from titanium concentrate - Google Patents
Method for preparing acid-soluble titanium-rich material and iron powder from titanium concentrate Download PDFInfo
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- CN105349783A CN105349783A CN201510723796.8A CN201510723796A CN105349783A CN 105349783 A CN105349783 A CN 105349783A CN 201510723796 A CN201510723796 A CN 201510723796A CN 105349783 A CN105349783 A CN 105349783A
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- iron powder
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- acid
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- 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
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- 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
- C22B34/1218—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 titanium or titanium compounds from ores or scrap by dry processes
Abstract
The invention relates to the field of comprehensive utilization of mineral resources, in particular to a method for preparing an acid-soluble titanium-rich material and iron powder from titanium concentrate. On the basis that high titanium slag is produced through an electric furnace method, a tunnel kiln reduction grinding and selection method with sodium humate as a catalyst is adopted, a systematic test is performed according to mineral performance characteristics and product guide regulation indexes of different types and grades of titanium concentrate, the problems existing in production technologies and methods for preparing the acid-soluble titanium-rich material and the iron powder are solved, and the novel method is used for industrial production of the acid-soluble rich-titanium material and the iron powder, is efficient, environment-friendly and high in adaptability and saves energy.
Description
Technical field
The present invention relates to mineral resources comprehensive utilization field, be specifically related to a kind of method preparing the rich titanium material of solubility in acid and iron powder from ilmenite concentrate.
Background technology
The raw material sources one of China's titanium dioxide industry are ilmenite concentrates, and two are through physical chemistry production process and the titanium ore enriched substance formed, and are called for short rich titanium material.In recent years along with China's titanium white rapid industrial development, the demand of rich titanium material is grown with each passing day, due to rich titanium material, to have titaniferous amount high, technics comparing is simple, technological process three-protection design amount is few, resource and energy utilization rate high, and contribute to improving the advantage such as product quality, more and more favor by Producing Titanium Dioxide producer, present that supply falls short of demand, situation that dependence on import, imbalance between supply and demand are given prominence to.It is predicted, the rich titanium material of a few years from now on China still needs a large amount of import.
At present, the main production process that rich titanium material is prepared from ilmenite concentrate by China is electric furnace process, although it has series of advantages, energy consumption is high, produces 1 ton of titanium slag, approximately needs the electric energy of 3000kWh, in the area that the energy is shorter, is difficult to select.Therefore, for increasing the supply of rich titanium material domestic market, opening up the novel method of producing rich titanium material, is a research of technique problem extremely to be solved.The present invention is then that the tunnel kiln reduction mill implemented at vanadium titano-magnetite selects on patented technology (patent No. 200810143675.6) basis of the independent research of industrialization method, develops a kind of non-electric furnace method preparing the rich titanium material of solubility in acid and iron powder from ilmenite concentrate.For dissimilar with grade ilmenite concentrate and Performance characteristic, adopt Sodium salts humic acids to be that the tunnel kiln reduction mill of catalyzer selects method, through systematic testing, solve the production technology and method problem of preparing the rich titanium material of solubility in acid and iron powder.
Summary of the invention
Technical problem to be solved by this invention is: produce on titanium slag basis in electric furnace process, the tunnel kiln reduction mill adopting Sodium salts humic acids to make catalyzer selects method, for dissimilar with grade ilmenite concentrate mineralogical property feature and product professional etiquette index, carry out systematic testing, solve the production technology and method problem of preparing the rich titanium material of solubility in acid and iron powder, for the rich titanium material of industrial production solubility in acid and iron powder provide a kind of efficient, energy-saving and environmental protection, novel method that suitability is strong.
For solving the problems of the technologies described above implemented technological method be:
A kind of method preparing the rich titanium material of solubility in acid and iron powder from ilmenite concentrate, it is characterized in that making catalyzer with the free from corrosion Sodium salts humic acids of nontoxic odorless, joining ore deposit ratio is: dissimilar and grade ilmenite concentrate 100 parts: Sodium salts humic acids catalyzer 1.5-10 part, hard coal or refinery coke reductive agent≤10 part, in imitative tunnel furnace, adopt two sections of heating reduction calcining systems, first paragraph temperature≤1000 DEG C, insulation 3-4 hour, with second segment temperature≤1200 DEG C, insulation 2-3 hour, reducing material is separated through mill choosing, obtains TiO
2grade 67-77%, TFe3.04-7.33%, TiO
2iron powder two commercial grades of the rich titanium material of the solubility in acid of rate of recovery 90-98.89%, acidolysis rate 92-98%, granularity-200 order 98% and TFe grade 84-92.5%, Fe rate of recovery 84-96%.
Products obtained therefrom quality reaches the index of rower and user's requirement.Comparative result lists in table 1:
The domestic and international ilmenite concentrate of table 1 is prepared the rich titanium material of solubility in acid and is compared with iron powder technical indicator
The method of this patent exploitation not only remains electric furnace process and produces that the titanium content that rich titanium material has is high, technique is simple, three-protection design is few, the direct utilization ratio advantages of higher of byproduct, and significantly can reduce energy consumption, byproduct cost performance promotes, does not restrict by resources supplIes, suit measures to local conditions, produce rich titanium material with gathering materials on the spot, opening a kind of new industrialization method for expanding the rich titanium material production of China, following technique effect can be reached: one is be the low-grade ilmenite concentrate (TiO having a large amount of fine grain teeth cloth, difficult choosing both at home and abroad
2grade < 40%, TFe > 30%) resource (comprise primary ore, half weathered ore, beach placer and select factory's chats etc.), and the area of short of electricity or electricity price costliness provides a kind of industrialization method fully utilizing ilmenite concentrate efficiently, economically with country; Two is the features for different ilmenite concentrate mineral; adopt the integrated coupling of two sections of heating reduction calcining systems (through 65 meters long industrial tunnel Kiln verification experimental verifications) and different deal Sodium salts humic acids catalyzer, reductive agent; under guaranteeing to obtain the high rich titanium material of acidolysis rate and high grade iron vermicelli part; achieve the smooth and easy of production process, prepare rich titanium material for domestic all types ilmenite concentrate ore deposit and provide a kind of non-electric furnace novel method.
Described Sodium salts humic acids catalyzer is market regular industrial product on sale in a large number, and fulvo acid sodium contents on dry basis>=70%, molecular formula is C
9h
8na
2o
4(being called for short HA-Na), outward appearance is the indefiniteness particle of shiny black look, and nontoxic odorless is corrosion-free, very easily water-soluble, adopting the natural low magnesium weathered coal of the low calcium of high-quality containing humic acids to refine through chemistry and form, is a kind of multifunctional natural Porous-Organic macromolecular compound, containing hydroxyl, quinonyl, the active group that carboxyl etc. are more, has very large internal surface area, there is stronger absorption, exchange, complexing, sequestering power.Humic acids and sodium salt thereof have been applied in the various fields of national economy and have approved.As made ceramic additive, dispergator, drilling mud adjusting agent, process water stablizer, cement water reducing agent, boiler detergent, waste gas waste water conditioner, water coal oar admixture, coal briquette bond, negative battery plate expander; In agricultural, make compound manure, can Soil structure be changed, farm crop are played to the effect of disease resistance increasing both production and income; Make fodder additives in livestock culture, in aquaculture, make synergistic agent; Pharmaceutically balneation medicament etc. can be made, demonstrate powerful vitality.In the application aspect of mineral resources comprehensive utilization and metallurgical technology field, Sodium salts humic acids is as flotation reagent, additive, the existing many reports of cakingagent application, as in process for direct reduction of briquets bound with high molecular substances patent (CN85103346A), disclose as preventing ring formation problem in rotary kiln reduction process, develop the technology that Sodium salts humic acids uses as iron ore pellet binder, but being used for preparing the rich titanium material of solubility in acid with iron powder from ilmenite concentrate ore deposit as catalyzer is for the first time, as catalyst application in from sefstromite concentrate directly the low vanadium alloy comminuted steel shot of preparation be also first time (being simultaneously be described in the specification sheets background technology of 2013107104187 in the patent No.).The function of Sodium salts humic acids catalyzer is mainly:
The first, so far the catalyzer report that sodium humate is used as Reduced separating titanium and iron in ilmenite concentrate is had no, this patent has carried out the experimental study of this respect first, obtain good titanium, iron Separation Indexes, the rich titanium item position of major product is higher, fine size, iron content are low, solubility in acid good, reach the index that domestic and international rower and user require, be the desirable feedstock of producing sulfate process titanium dioxide, byproduct iron powder purposes is wide, cost performance is high.
The second, sodium humate is used as catalyst reduction ilmenite concentrate, compared with sodium-chlor, sodium sulfate, sodium carbonate in prior art, there are following three advantages: one is that environmental protection is good, nontoxic, tasteless, harmless, directly can do compound manure, fodder additives and medical balneation agent.Two is that sodium humate is not only catalyzer, or join reductive agent (ash content is low) in desirable, the high-molecular hydrocarbons of contained hydroxyl, quinonyl, carboxyl, in reduction process, decomposable asymmetric choice net goes out hydrogen and carbon monoxide, second segment can be promoted the temperature of iron grain growth be down to by 1280 DEG C (when making catalyzer with sodium sulfate)≤1200 DEG C, reach the energy-conservation effect especially extending retort work-ing life; Three is that raw material sources are extensive, and consumption is less, and production technique is simple, has the place of humolith, and user can gather materials on the spot production.
Described temperature-gradient method reductive firing system be first be warming up to≤1000 DEG C, insulation 3-4 hour, makes ferric oxide fully be reduced to metallic iron, and then temperature is risen to≤1200 DEG C, and insulation 2-3 hour, makes metallic iron grain growth to the granularity of suitable mechanical sorting.The industrial temperature control time need according to dissimilar with grade ilmenite concentrate, selected through testing.
For further illustrating the technical characteristic of this patent, the correlation technique file retrieved is compared, as shown in table 2:
The comparison sheet of table 2 this patent and documents technical characteristic
Can clearly find out from table 2, dissimilar mineral, different method of comprehensive utilization are far from each other, and technical scheme and processing parameter thereof have the feature of respective interdependence, can not cut arbitrarily, such as:
1, this patent is compared with No. 2013107104187 patent documents, although be all adopt Sui Dao Kiln reduction grinding method and make catalyzer with Sodium salts humic acids, the difference of its technical characteristic, can embody from following several respects:
1. mineral composition difference
One is that mineral composition is different: sefstromite concentrate composition is complicated, is based on magnetite, the composite minerals of same ulvite, magnesium-aluminium spinel and a small amount of ilmenite platelet combination, and lot of experiments proves than common magnet mine disaster reduction (temperature high, time will grow).Ilmenite concentrate composition is comparatively simple, and its chemical molecular formula is FeO.TiO
2, because ferric oxide and titanium dioxide exist with the chemical combination of spinel shape, reduction more difficult than sefstromite concentrate.
Two is the various differences of type: sefstromite concentrate has high titanium type (blast-furnace smelting is difficult), middle titanium-type, the low titanium-type of high vanadium etc.Ilmenite concentrate has primary ore, weathered ore, half weathered ore, beach placer etc.
Three is that chemical composition is different, iron, titanium content significant difference: sefstromite concentrate iron content height titanium is low, generally containing TFe51-58%, containing TiO
22.5-14%(does not reach 22%), containing V
2o
50.5-1.6%, during comprehensive utilization, iron is major product, and vanadium, titanium are byproducts, and the trend of vanadium in the sepn process of ferrotitanium vanadium has a significant impact technical process and product performance.Ilmenite concentrate titaniferous high ferro is low, generally containing TiO
245-53%, containing TFe32-38%, containing V
2o
5≤ 0.2%, during comprehensive utilization, titanium is major product, and iron is byproduct.
2. the choosing of Sodium salts humic acids catalytic reduction mill is separated the difference of sefstromite concentrate and ilmenite concentrate processing parameter
One is that object is different: the major product of sefstromite concentrate is the low vanadium alloy comminuted steel shot of preparation, and the major product of ilmenite concentrate is that preparation is of high grade (containing TiO
275-78%), rich titanium material that fine size, solubility in acid are good, make sulfate process titanium dioxide raw material, byproduct is the iron powder (compared with the pig of electric furnace process) that cost performance is higher.
Two is difference of reducing process: sefstromite concentrate adopts a section of reduction (1200 ± 30 DEG C), and hard coal addition is higher, is 15-28%, and object is conducive to vanadium to enter in iron, obtains low vanadium alloy comminuted steel shot.Ilmenite concentrate, for the characteristic of its difficult reduction, adopts two sections of reducing process, first paragraph≤1000 DEG C, insulation for some time, ferric oxide is made fully to be reduced to metallic iron, then temperature is risen to≤1200 DEG C, be incubated for some time again, make metallic iron grain growth to the granularity of suitable mechanical sorting.Reductive agent (hard coal or refinery coke) addition in batching controls≤10%, can meet the needs of reduction, is conducive to again preparing the rich titanium material of the low solubility in acid of carbon content.
3. the difference of byproduct work flow: sefstromite concentrate byproduct is rich vanadium titanium Liao ， Department intermediates, still needs and carries out being separated of vanadium and titanium, following process long flow path.The byproduct of ilmenite concentrate is iron powder finished product, can direct marketing.
From above-mentioned relatively, can find out further, although be all plant sodium with corruption to make catalyzer, but be all different viewed from other aspects, therefore this patent still has significant progressive.
2, this patent compares with No. 2008101436756 patent documents: be all adopt tunnel kiln reduction to grind to select method, but handling object is different from comprehensive utilization product.This patent produces for existing electric furnace process process ilmenite concentrate defect that titanium slag exists and the method for the rich titanium material of solubility in acid prepared by a kind of non-electric furnace developed, No. 2008101436756 patents are then the defects existed for existing blast furnace process process sefstromite concentrate, and a kind of method fully utilizing iron, titanium, vanadium of exploitation.As shown in table 2, have the difference of four technical characteristics, one is that object is different, two be product type, purposes and requirement thereof technical indicator different, three is that batching is different, and this patent selects Sodium salts humic acids to make catalyzer, and four is that calcining system is different.
3, this patent and " climb western ilmenite concentrate and fully utilize novel process " Documents Comparison, although handling object and product type, purposes are identical, but method of comprehensive utilization and reduction main equipment all different with additive, the concrete technical scheme selected and processing parameter are also different.As shown in Table 2, this file is solution ring formation of rotary kiln problem, before reduction, addition of the unexistent concrete technical scheme of this patent, one be batching in addition to additives, also will add compound cakingagent F1, additive is the combination of two kinds of chemical reagent and KS tri-kinds of materials, two is before reduction, will preheating at 700 DEG C, three is that mill selects the stage, except magnetic separation, also configuring shaking table and carry out Gravity separation, still there is the technical barrier of ring formation in four rotary kilns also proto industrialization.
4, this patent and " cryogenic metallurgy technology and technical development " Documents Comparison: as shown in Table 2, this file have developed the micro/nano level fine iron breeze with energy storage catalysis, propose and realize being separated of iron and slag by low-temperature reduction reactor and the temperature controlling instruments of iron grain growth reactor, and this patent is by regulation and control time and temperature in same Sui Dao Kiln, realize two sections of heating reduction calcining systems, reach being separated of rich titanium material and iron powder, although be all temperature control, but means are different from device, this patent realizes temp-controlling and time-controlling in same equipment, and this file realizes temp-controlling and time-controlling in distinct device.
Accompanying drawing explanation
Fig. 1 is that tunnel kiln reduction of the present invention mill selects legal system for the rich titanium material of solubility in acid and iron powder technical process.It is the Improvement and development on the commercial processes process base of independent research patent [200810143675.6]:
The first, handling object is changed ilmenite concentrate for dissimilar and grade by sefstromite concentrate, therefore, for the feature of ilmenite concentrate and user to the requirement of product, reform technical process, parameter and equipment;
The second, in view of iron difficult reductibility in ilmenite, adopt Sodium salts humic acids catalyzer, achieving dissimilar ilmenite concentrate can reduce at a lower temperature, strengthens iron, titanium separating effect, reaches good technico-economical comparison;
Three, by the reductive firing system of tunnel furnace, burn till by one section and change two sections into and burn till, both save energy, guarantee again the realization of reductive firing index.
Embodiment
In conjunction with the dissimilar ilmenite concentrate with grade, application drawing 1 technical process, carry out following case and implemented:,
Embodiment 1 prepares the rich titanium material of solubility in acid and iron powder from primary ore
By primary ore 100 parts of (TiO246.31%, TFe33.75%), Sodium salts humic acids catalyzer 10 parts, pulverized anthracite reductive agent 10 parts mixing, briquetting or pelletizing, tinning, and in imitative tunnel furnace two sections of heating reductions (one section≤1000 DEG C, insulation 3-4 hour, two sections≤1200 DEG C, insulation 2-3 hour), obtain reducing material; Reducing material is broken, be milled down to-200 orders 65%, and magnetic separation obtains rough concentrate and mine tailing, and coarse concentrate regrinding carefully arrives-200 orders 70%, and magnetic separation obtains concentrate and chats, and mine tailing and chats are mixed into rich titanium material.The separating resulting of the rich titanium material of gained and iron powder is as shown in table 1:
Table 1, embodiment 1 primary ore reduction-mill selects separating resulting
Embodiment 2 prepares the rich titanium material of solubility in acid and iron powder from half weathering primary ore 1
By half weathering primary ore, 100 parts of (TiO246.44%, TFe35.51%), Sodium salts humic acids catalyzer 5 parts, pulverized anthracite reductive agent 10 parts mixing, briquetting or pelletizing, tinning, and in imitative tunnel furnace two sections of heating reductions (one section≤1000 DEG C, insulation 3-4 hour, two sections≤1200 DEG C, insulation 2-3 hour), obtain reducing material; Reducing material is broken, be milled down to-200 orders 65%, and magnetic separation obtains rough concentrate and mine tailing, and coarse concentrate regrinding carefully arrives-200 orders 70%, and magnetic separation obtains concentrate and chats, and mine tailing and chats are mixed into rich titanium material.The separating resulting of the rich titanium material of gained and iron powder is as shown in table 2:
Table 2, embodiment 2 half weathering primary ore 1 reduce-grind and select separating resulting
Embodiment 3 prepares the rich titanium material of solubility in acid and iron powder from half weathering primary ore 2
By half weathering primary ore, 100 parts of (TiO246.44%, TFe35.51%), Sodium salts humic acids catalyzer 10 parts, pulverized anthracite reductive agent 10 parts mixing, briquetting or pelletizing, tinning, and in imitative tunnel furnace two sections of heating reductions (one section≤1000 DEG C, insulation 3-4 hour, two sections≤1200 DEG C, insulation 2-3 hour), obtain reducing material; Reducing material is broken, be milled down to-200 orders 65%, and magnetic separation obtains rough concentrate and mine tailing, and coarse concentrate regrinding carefully arrives-200 orders 70%, and magnetic separation obtains concentrate and chats, and mine tailing and chats are mixed into rich titanium material.The separating resulting of the rich titanium material of gained and iron powder is shown in table 3:
Table 3, embodiment 3 half weathering primary ore 2 reduce-grind and select separating resulting
Embodiment 4 prepares the rich titanium material of solubility in acid and iron powder from half weathering low-grade primary ore deposit 3
By half 100 parts, weathering low-grade primary ore deposit (TiO234.22%, TFe39.95%), Sodium salts humic acids catalyzer 10 parts, pulverized anthracite reductive agent 10 parts mixing, briquetting or pelletizing, tinning, and in imitative tunnel furnace two sections of heating reductions (one section≤1000 DEG C, insulation 3-4 hour, two sections≤1200 DEG C, insulation 2-3 hour), obtain reducing material; Reducing material is broken, be milled down to-200 orders 65%, and magnetic separation obtains rough concentrate and mine tailing, and coarse concentrate regrinding carefully arrives-200 orders 70%, and magnetic separation obtains concentrate and chats, and mine tailing and chats are mixed into rich titanium material.The separating resulting of the rich titanium material of gained and iron powder is shown in table 4:
Table 4, embodiment 4 half weathering low-grade primary ore deposit 3 reduce-grind and select separating resulting
Embodiment 5 prepares the rich titanium material of solubility in acid and iron powder from the sand ilmenite concentrate of beach
By higher-grade beach sand ilmenite concentrate 100 parts of (TiO253.94%, TFe25.28%,), Sodium salts humic acids catalyzer 8 parts and pulverized anthracite reductive agent 10 parts mixing, briquetting or pelletizing, tinning, and in imitative tunnel furnace two sections of heating reductions (one section≤1000 DEG C, insulation 3-4 hour, two sections≤1200 DEG C, insulation 2-3 hour), obtain reducing material; Reducing material is broken, be milled down to-200 orders 95%, and magnetic separation obtains rough concentrate and mine tailing, and coarse concentrate regrinding carefully arrives-200 orders 98%, and magnetic separation obtains concentrate and chats, and mine tailing and chats are mixed into rich titanium material.The separating resulting of the rich titanium material of gained and iron powder is shown in table 5:
Table 5, embodiment beach sand ilmenite concentrate reduction-mill selects separating resulting
Embodiment 6 prepares the rich titanium material of solubility in acid and iron powder from low-grade primary ore deposit
By ilmenite concentrate 100 parts of (TiO240.85%, TFe35.18%,), mix with Sodium salts humic acids catalyzer 1.5 parts and refinery coke reductive agent 10 parts, briquetting or pelletizing, tinning, and in imitative tunnel furnace two sections of heating reductions (one section≤1000 DEG C, insulation 3-4 hour, two sections≤1200 DEG C, insulation 2-3 hour), obtain reducing material; Reducing material is broken, be milled down to-200 orders 95%, and magnetic separation obtains rough concentrate and mine tailing, and coarse concentrate regrinding carefully arrive-200 orders 98%, and magnetic separation obtains concentrate and chats, and the separating resulting of gained richness titanium material and iron powder is shown in table 6:
Table 6, embodiment 6 low-grade primary ore deposit reduction-mill select separating resulting
Claims (1)
1. from ilmenite concentrate, prepare the method for the rich titanium material of solubility in acid and iron powder for one kind, it is characterized in that making catalyzer with the free from corrosion Sodium salts humic acids of nontoxic odorless, joining ore deposit ratio is: dissimilar and grade ilmenite concentrate 100 parts: Sodium salts humic acids catalyzer 1.5-10 part, hard coal or refinery coke reductive agent≤10 part, in imitative tunnel furnace, adopt two sections of heating reduction calcining systems, first paragraph temperature≤1000 DEG C, insulation 3-4 hour, with second segment temperature≤1200 DEG C, insulation 2-3 hour, reducing material is separated through mill choosing, obtains TiO
2grade 67-77%, TFe < 3.04-7.33%, TiO
2iron powder two commercial grades of the rich titanium material of the solubility in acid of rate of recovery 90-98.89%, acidolysis rate 92-98%, granularity-200 order 98% and TFe grade 84-92.5%, Fe rate of recovery 84-96%.
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| CN201510723796.8A CN105349783A (en) | 2015-11-01 | 2015-11-01 | Method for preparing acid-soluble titanium-rich material and iron powder from titanium concentrate |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106623956A (en) * | 2017-01-19 | 2017-05-10 | 重庆大学 | Method for producing iron powder through semi-steel granulation method and efficiently utilizing steam |
| CN106735281A (en) * | 2016-12-28 | 2017-05-31 | 重庆大学 | A kind of method that half steel produces iron powder |
| CN108384948A (en) * | 2018-03-29 | 2018-08-10 | 唐竹胜 | A kind of method that low temperature depth slag sluicing system quickly restores ilmenite concentrate sorting high titanium slag and acid-dissolved titanium slag |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103060564A (en) * | 2012-12-28 | 2013-04-24 | 长沙市东新矿冶科技开发有限公司 | Novel process for preparing acid-soluble titanium-rich material and iron powder by using tunnel kiln reduction selective grinding method |
| CN103643041A (en) * | 2013-12-20 | 2014-03-19 | 长沙市东新矿冶科技开发有限公司 | Novel technology for preparing low vanadium-titanium alloy comminuted steel shot through vanadium and titanium iron concentrate |
-
2015
- 2015-11-01 CN CN201510723796.8A patent/CN105349783A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103060564A (en) * | 2012-12-28 | 2013-04-24 | 长沙市东新矿冶科技开发有限公司 | Novel process for preparing acid-soluble titanium-rich material and iron powder by using tunnel kiln reduction selective grinding method |
| CN103643041A (en) * | 2013-12-20 | 2014-03-19 | 长沙市东新矿冶科技开发有限公司 | Novel technology for preparing low vanadium-titanium alloy comminuted steel shot through vanadium and titanium iron concentrate |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106735281A (en) * | 2016-12-28 | 2017-05-31 | 重庆大学 | A kind of method that half steel produces iron powder |
| CN106623956A (en) * | 2017-01-19 | 2017-05-10 | 重庆大学 | Method for producing iron powder through semi-steel granulation method and efficiently utilizing steam |
| CN106623956B (en) * | 2017-01-19 | 2018-07-06 | 重庆大学 | Half steel shotting produces the method that iron powder and high-efficiency steam utilize |
| CN108384948A (en) * | 2018-03-29 | 2018-08-10 | 唐竹胜 | A kind of method that low temperature depth slag sluicing system quickly restores ilmenite concentrate sorting high titanium slag and acid-dissolved titanium slag |
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