CN109499744A - A method of chlorination rich-titanium material is prepared using high contents of calcium and magnesium silicon ilmenite concentrate - Google Patents
A method of chlorination rich-titanium material is prepared using high contents of calcium and magnesium silicon ilmenite concentrate Download PDFInfo
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- CN109499744A CN109499744A CN201811404346.2A CN201811404346A CN109499744A CN 109499744 A CN109499744 A CN 109499744A CN 201811404346 A CN201811404346 A CN 201811404346A CN 109499744 A CN109499744 A CN 109499744A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
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- C01G23/00—Compounds of titanium
- C01G23/04—Oxides; Hydroxides
- C01G23/047—Titanium dioxide
Abstract
The invention discloses a kind of methods using high contents of calcium and magnesium silicon ilmenite concentrate preparation chlorination rich-titanium material, comprising the following steps: (1) by ilmenite concentrate ball milling, then sizes mixing, floating agent is then added and carries out direct flotation, obtains low silicon ilmenite concentrate；(2) fine fraction rich-titanium material is obtained after carrying out acidleach by resulting low silicon ilmenite concentrate and mixed in hydrochloric acid, be filtered, washed, dry；(3) will be cooling after the resulting fine fraction rich-titanium material heating melting of step (2), it is then crushed up to chlorination rich-titanium material.The present invention optimizes the ilmenite concentrate production technology that existing Pan Xi contains high contents of calcium and magnesium silicon, eliminates a large amount of impurity such as calcium titanium, silico-calcium, silicon-aluminium compound by flotation, wherein SiO2Removal rate avoids SiO up to 60% or more2" glass phase " solid solution for being difficult to react with hydrochloric acid is formed with CaO and influences acidleach effect, substantially increases the rich-titanium material quality of acid leaching efficiency and leaching.
Description
Technical field
It is especially a kind of rich using the preparation chlorination of high contents of calcium and magnesium silicon ilmenite concentrate the present invention relates to a kind of preparation method of rich-titanium material
The method of titanium material.
Background technique
In recent years, as China environmental protection policy is increasingly severe, it is raw that biggish sulfuric acid method titanium pigment is polluted in Ti industry
Production is restricted.And environment influence is smaller, the higher Titanium Dioxide Produced by Chloride Procedure production technology of technology content is by national industrial policies
It encourages, according to statistics, to the end of the year in 2018, China's Titanium Dioxide Produced by Chloride Procedure production capacity will rise to 500,000 tons/year or so.Compared to sulfuric acid process
The advantages such as titanium white production technology, chloridising have process short, high degree of automation, good product quality, and environmental pollution is small, but
There is a problem of requiring material quality harsh, the raw material of Titanium Dioxide Produced by Chloride Procedure need to meet following index:
Raw material of the rich-titanium material as Titanium Dioxide Produced by Chloride Procedure need to be used, chlorination rich-titanium material refer generally to natural rutile, artificial
Rutile or titanium chloride slag.Although China is titanium resource big country, but be suitble to the natural golden of titanium sponge and Titanium Dioxide Produced by Chloride Procedure production
Red stone is suitble to be processed into the high-quality titanium ore shortage of resources of chlorination rich-titanium material.According to related data introduction, 95% or more titanium of China money
Source belongs to primary type vanadium titano-magnetite (being mainly distributed on Panxi Diqu), the mine CaO, MgO, SiO2Equal impurity contents are higher, will
After it uses conventional technique of preparing to obtain ilmenite concentrate, with TiO in the titanium slag of its smelting2Grade is only capable of reaching 70~77%, and
MgO+CaO content is up to 8~10%, is not used to fluidizing chlorination.
Currently, hydrochloric acid can remove effectively iron and major part CaO, MgO, Al in ilmenite concentrate2O3, the impurity such as MnO, thus
It obtains and contains TiO288%~96% high-grade artificial rutile is particularly suitable for the ilmenite concentrate of the various complicated types of processing, this makes
Obtaining hydrochloric acid method Production of Artificial Rutile technique becomes the hot spot of current chlorination rich-titanium material production technology research.Publication No.
The U.S. Patent Publication of US5830420A is a kind of to produce the high-grade richness titanium used for fluidizing chlorination using high contents of calcium and magnesium silicon raw material
Expect the method for (UGS slag), titanium slag (TiO of this method by particle size range less than 75~850 μm282.55%, CaO 0.47%,
MgO 5.56%), in fluidized bed internal oxidition 45min at 950 DEG C~1200 DEG C, gaseous mixture then is used at 700 DEG C~800 DEG C
Body (the H containing 85% CO and 15%2) 1h is restored, the titanium slag after reduction carries out pressurized acid leaching at 145 DEG C, and washing acidleach produces
Object, then by concentration, for 5%~10%NaOH solution, the alkali at 50 DEG C~100 DEG C of extraction temperature soaks, then will leach product 600
DEG C~800 DEG C at be calcined, obtain TiO295% or so high-grade rich-titanium material.The purpose of oxidationreduction in the technology be in order to
The anosovite phase structure for changing titanium slag, is allowed to generate lattice defect, the leaching convenient for subsequent hydrochloric acid to impurity is dissolved in anosovite
Out.Pressure leaching mainly because of anosovite compact structure, need to strengthen the leaching efficiency of hydrochloric acid, due to Panzhihua high contents of calcium and magnesium silicon vanadium titanium magnetic
SiO in iron ore2Content is up to 2.5%~5.0%, if being directly added into furnace production titanium slag, SiO in slag2Content will increase to 6% with
On, upgrading titanium slag, the SiO in product are produced with this titanium slag2Content will lead to the TiO in product up to 7% or more2Grade is very
More than 90%, CaO content severely exceeds hardly possible, when this is primarily due to titanium slag pyrolytic semlting, SiO in mine2Easily " glass is formed with CaO
Phase " solid solution, it is difficult to be reacted with hydrochloric acid, cause Ore Leaching effect poor, it is therefore necessary to can just obtain Gao Pin after alkali leaching silicon
The upgrading titanium slag of position, the technology have the shortcomings that long flow path, the production time is long, energy consumption is high, complicated for operation, at high cost, the day of one's doom
The extensive use of product is made.Therefore, Panxi Diqu v-ti magnetite ore resources abundant are based on, are developed a kind of suitable for production
The preparation method of the rich-titanium material of chloride process titanium dioxide becomes current urgent problem to be solved.
Summary of the invention
Technical problem to be solved by the invention is to provide it is a kind of using vanadium titano-magnetite preparation chlorination rich-titanium material method,
This method process is short, low energy consumption, at low cost, and a large amount of impurity remove before smelting or acidleach process in mine, improves ilmenite concentrate product
Matter is conducive to smelting or acidleach in next step.
The technical solution adopted by the present invention to solve the technical problems is: a kind of to prepare chlorination using high contents of calcium and magnesium silicon ilmenite concentrate
The method of rich-titanium material, comprising the following steps:
(1) it by ilmenite concentrate ball milling, then sizes mixing, floating agent is then added and carries out direct flotation, obtains low silicon ilmenite concentrate；
(2) fine fraction richness titanium is obtained after carrying out acidleach by resulting low silicon ilmenite concentrate and mixed in hydrochloric acid, be filtered, washed, dry
Material；
(3) will be cooling after the resulting fine fraction rich-titanium material heating melting of step (2), it is then crushed up to chlorination rich-titanium material.
Further, floating agent described in step (1) includes collecting agent, foaming agent, regulator, inhibitor, wherein catching
The additional amount for receiving agent is 3~8kg/t, and the additional amount of foaming agent is 3~7kg/t, and the additional amount of inhibitor is 2~6kg/t；Using
PH when regulator adjusts direct flotation is 3~5.
Further, the collecting agent is the mixture of hydroximic acid and oleic acid that mass ratio is 1:0.3~0.5, described
Infusion is modified 98# medicine, and the modification 98# medicine is that the yin that mass percent is 0.5~1% is added into 98# medicine
It is stirred evenly after ionic surface active agent, obtained by 3~8h of Cheng Hua；The inhibitor be selected from one of waterglass, malonic acid or
Two kinds；The regulator is selected from oxalic acid, H2SO4One or both of.It can be selected public from the coloured gold sand beneficiation reagent in Sichuan
The 98# medicine of production is taken charge of, mainly to the beneficiation reagent 2# medicine of market mass selling modified to obtain, main component is pine
Alcohol oil.It is adsorbed in mineral solid/liquid interfaces, makes certain minerals surface in hydrophobicity (as collecting agent) or makes specific in ore dressing
Surface is in hydrophily (playing inhibition or flocculation), to achieve the purpose that heads.The present invention be added in 98# medicine yin from
Sub- activating agent is modified, further strengthens the frothing capacity of the medicament, better collecting effect can be played to Fine Fraction Ilmenite.
Further, the volume ratio of ilmenite concentrate and water is 1:2.5~5 when the step (1) is sized mixing.
Further, step (1) the ball milling control ilmenite concentrate partial size is 0.05~0.15mm.
Further, the mass ratio of low silicon ilmenite concentrate and hydrochloric acid is 1:1~3 in the step (2), wherein the quality of hydrochloric acid
Concentration is 18~32%.
Further, acidleach temperature described in step (2) is 120~160 DEG C, acidleach 0.3~0.7Mpa of pressure, acidleach
Time is 4~10h.
Further, fine fraction rich-titanium material addition mineral hot furnace is heated to 1500~1900 DEG C of meltings in the step (3),
It then cools to room temperature, be crushed to 60~120 mesh up to chlorination rich-titanium material.
Further, the fine powder material of broken generation is returned into mineral hot furnace heating melting.
Further, step (2) are filtered into the HCl recovery in resulting filtrate, is back to acidleach process.
The beneficial effects of the present invention are: the ilmenite concentrate production technology progress that the present invention contains high contents of calcium and magnesium silicon to existing Pan Xi is excellent
Change and improve, a large amount of impurity such as calcium titanium, silico-calcium, silicon-aluminium compound is eliminated by flotation, wherein SiO2Removal rate up to 60% or more,
Avoid SiO2" glass phase " solid solution for being difficult to react with hydrochloric acid is formed with CaO and influences acidleach effect, substantially increases acid
Soak the rich-titanium material quality of efficiency and leaching；Present invention process process is short, and the titanium slag for being not required to carry out high energy consumption is smelted link, is not required to pair
Ilmenite concentrate carries out the alkali leaching silicon that redox is modified, is not required to progress rear end, and process flow is short, and low energy consumption, greatly reduces life
Produce cost；The present invention greatly improves the utilizing status of titanium resource in vanadium titano-magnetite, and rich-titanium material quality obtained is high, TiO2Contain
It is low that amount reaches 92% or more, calcium and magnesium silicone content, is suitable for production Titanium Dioxide Produced by Chloride Procedure.
Detailed description of the invention
Fig. 1 is the process flow chart of the embodiment of the present invention 1.
Specific embodiment
Present invention will be further explained below with reference to the attached drawings and examples.
As shown in Figure 1, a kind of method using high contents of calcium and magnesium silicon ilmenite concentrate preparation chlorination rich-titanium material of the invention, including it is following
Step:
(1) it by ilmenite concentrate ball milling, then sizes mixing, floating agent is then added and carries out direct flotation, obtains low silicon ilmenite concentrate；Into
One step, floating agent described in step (1) includes collecting agent, foaming agent, regulator, inhibitor, the wherein addition of collecting agent
Amount is 3~8kg of ilmenite concentrate collecting agent per ton, and the additional amount of foaming agent is 3~7kg of ilmenite concentrate foaming agent per ton, and inhibitor adds
Entering amount is silicon ilmenite concentrate per ton 2~6kg inhibitor；PH when regulator being used to adjust direct flotation is 3~5.The collecting agent is
Mass ratio is the hydroximic acid of 1:0.3~0.5 and the mixture of oleic acid, and the foaming agent is modified 98# medicine, and the inhibitor is
Waterglass；The regulator is oxalic acid, H2SO4Or both combination.The tailing after the choosing of low silicon ilmenite concentrate is carried out again conventional floating
Choosing, obtains high silicon ilmenite concentrate, can be used for the production of sulfuric acid method titanium pigment.
Climb western vanadium titano-magnetite oikocryst mineral be titanomagnetite, containing the elements such as a small amount of vanadium, chromium, magnesium, aluminium, calcium, silicon with
Isomorph exists wherein, and chadacryst mineral are complex mineral composed by ilmenite, ulvospinel, magnesium aluminate spinel etc., with
Particle or plate structure are distributed in oikocryst mineral along magnetic iron ore crystal face, and ilmenite is the target mineral for selecting titanium, are gathered in pelletized form
Body is embedding to be distributed in magnetic iron ore and silicate mineral, and the 10~30% of titanium elements total amount are accounted for.Therefore it can pass through mechanical milling method
Dissociate most of ilmenite particle and gangue and magnetic iron ore, for lower step except silicon selects upgrading choosing to create condition.Therefore right first
The iron selection tailings for climbing western vanadium titano-magnetite carry out gravity treatment, the process can make 60~80% ilmenites and ulvite in heavy mineral,
Magnetic iron ore, bloodstone, perovskite mineral disaggregation carry out magnetic separation after ball milling to the heavy mineral sorted out again, by magnetic strong magnet
Mine and bloodstone remove to obtain ilmenite concentrate, the impurity such as calcium, magnesium, the silicon in ilmenite concentrate are then removed by direct flotation, if directlying adopt
Ilmenite concentrate carries out preparation rich-titanium material, then direct flotation after ball milling, without magnetic separation.The wherein ingredient of ilmenite concentrate and low silicon ilmenite concentrate
Comparison is as shown in table 1, it can be seen that by direct flotation, eliminates in ilmenite concentrate 80% or more calcium and magnesium silicon impurities.Prevent titanium
When slag pyrolytic semlting, SiO in mine2Formed with CaO and be difficult to " glass phase " solid solution for react with hydrochloric acid, caused by Ore Leaching effect
Fruit is poor, improves the leaching efficiency of subsequent acid leaching process.
The ingredient of 1 ilmenite concentrate of table and low silicon ilmenite concentrate compares
| Detection project | TiO2/ % | Fe2O3/ % | FeO/% | SiO2/ % | CaO/% | MgO/% |
| Ilmenite concentrate | 46.72 | 5.67 | 34.83 | 2.73 | 1.57 | 3.41 |
| Low silicon ilmenite concentrate | 48.55 | 6.46 | 35.74 | 0.66 | 0.48 | 0.54 |
The volume ratio of ilmenite concentrate and water is 1:2.5~5 when sizing mixing, and step (1) the ball milling control ilmenite concentrate partial size is
0.05~0.15mm.
(2) fine fraction richness titanium is obtained after carrying out acidleach by resulting low silicon ilmenite concentrate and mixed in hydrochloric acid, be filtered, washed, dry
Material；Wherein the mass ratio of low silicon ilmenite concentrate and hydrochloric acid is 1:1~3, and wherein the mass concentration of hydrochloric acid is 18~32%；It is wherein described
Acidleach temperature be 120~160 DEG C, acidleach 0.3~0.7Mpa of pressure, leaching time be 4~10h.Resulting filtrate will be filtered
Hydrochloric acid is recycled after middle row torch firing, is back to acidleach process, resulting slag iron-content is higher, can be used as iron-smelting raw material.Due to this
Invention does not carry out redox modification to ilmenite concentrate, when pressure leaching, due to reaction temperature height, acid-leaching reaction dynamics item
Part is strengthened, can make hydrochloric acid in ilmenite concentrate titanium dioxide and impurity quickly reacted, due to the big portion in ilmenite concentrate
Divide TiO2Dissolution generates TiOCl2, reaction equation are as follows: TiO2+ 2HCl=TiOCl2+H2O works as TiOCl2Reach in pickle liquor
Certain concentration, as concentration of hydrochloric acid reduces, TiOCl2It can hydrolyze as particle TiO2Start to be precipitated, reaction equation are as follows:
TiOCl2+H2O=TiO2+2HCl.Since hydrolysis does not occur for impurity, make the TiO of hydrolysis precipitation2Particle purity is higher, impurity
Content is few；And original ilmenite concentrate particle is due to the dissolution of unformed titanium dioxide and partial impurities, ore particle surface formation large number of orifices
Hole is more advantageous to the further leaching of impurity inside ore particle.Therefore it is few can be quickly obtained grade height, impurity content for pressure leaching
Fine fraction rich-titanium material.To resulting fine fraction rich-titanium material sample detection, the results are shown in Table 2.
The ingredient of 2 fine fraction rich-titanium material of table
| Detection project | TiO2/ % | Fe2O3 | FeO/% | SiO2/ % | CaO/% | MgO/% |
| No. 1 sample | 91.7 | 2.2 | 0.37 | 1.55 | 0.17 | 1.16 |
| No. 2 samples | 92.55 | 1.8 | 0.33 | 1.47 | 0.17 | 1.14 |
(3) will be cooling after the resulting fine fraction rich-titanium material heating melting of step (2), it is then crushed up to chlorination rich-titanium material.
Fine fraction rich-titanium material addition mineral hot furnace is wherein heated to 1500~1900 DEG C of meltings, then cool to room temperature, be crushed to 60~
120 mesh are up to chlorination rich-titanium material；Mineral hot furnace heating melting is returned by 10~20% fine powder materials of broken generation.
Titanium Dioxide Produced by Chloride Procedure is produced when carrying out fluidizing chlorination, there is harsh requirement to rich-titanium material granularity, general to require richness
60~120 90% or more mesh accounting of titanium material granularity, because fine fraction rich-titanium material in chlorination reaction, may also have neither part nor lot in instead
Dust collecting system just should be brought by chlorine, cause titanium dioxide yield low, system burden weight.And the present invention uses mineral hot furnace melting side
The granularity that formula changes fine fraction rich-titanium material finally obtains the chlorination rich-titanium material of suitable particle size by fusing, cooling, broken process.
Embodiment 1:
It is divided into TiO for a kind of group2: 46.51%, SiO2: 2.58%, CaO:2.27%, MgO:3.75% climb western high contents of calcium and magnesium
It is 0.05~0.15mm that silicon ilmenite concentrate, which first carries out being finely ground to partial size, is then added floating agent, main component be hydroximic acid and
Oleic acid mass ratio be 1:0.3~0.5 collecting agent, as the modification 98# medicine of foaming agent, as the waterglass of inhibitor, often
Ton ilmenite concentrate is separately added into the collecting agent, foaming agent and inhibitor of 5kg, 4kg, 4kg；Use H2SO4The agent that adjusts adjusts flotation body
Be pH be 4, then carry out 4 flotation, gained ingredient be TiO2: 48.19%, SiO2: 0.66%, CaO:0.27%, MgO:
1.75% low silicon ilmenite concentrate yield is 43.5%；TiO2The high silicon ilmenite concentrate yield that content is 44.38% is 55.67%, titanium
Loss late is lower than 2%
Pressure leaching in reaction kettle, reaction condition are as follows: the mass ratio of low silicon ilmenite concentrate and hydrochloric acid is added in low silicon ilmenite concentrate
For 1:2.5, hydrochloric acid mass concentration is 26%, and 155 DEG C of reaction temperature, reaction pressure 0.5Mpa, reaction time 6h, reaction terminate
After be separated by solid-liquid separation；
The solid material separated is washed with water, liquid, which is consolidated after mass ratio is washed 3 times by 3:1, to be filtered, and then will
Fine fraction rich-titanium material is obtained after the material of filtering is 3 hours dry under conditions of 120 DEG C；Prize fine fraction rich-titanium material is put into mineral hot furnace
In melted, after material all fusing after stop to electricity, transfer them in slag pan and be quickly cooled down.By rich-titanium material after cooling
Frit is broken, then composition detection, TiO in chlorination rich-titanium material are carried out to it2Grade is 94.06%, CaO 0.14%, MgO are
1.02%, SiO2It is 1.75%, titanium recovery rate 93.72%, granularity is that 60 mesh~120 mesh account for 79.37%, which can meet chlorine
The requirement of change method titanium dioxide feedstock specifications.
Embodiment 2:
It will be TiO by main component2: 40.11%, SiO2: 4.77%, CaO:2.5%, MgO:3.03% are climbed in western titanium
Mine first carries out ball milling, then carries out magnetic separation, then carries out flotation, the low silicon ilmenite concentrate ingredient of gained by the floatation process of embodiment 1 are as follows:
TiO2: 47.88%, SiO2: 0.94%, CaO:0.38%, MgO:2.69%, low silicon ilmenite concentrate yield are 31.41%, comparison
TiO2It is 26.59% for 45.51% high silicon ilmenite concentrate yield.
Pressure leaching in reaction kettle, reaction condition are as follows: the mass ratio of low silicon ilmenite concentrate and hydrochloric acid is added in low silicon ilmenite concentrate
For 1:1, hydrochloric acid mass concentration is 18%, and 125 DEG C of reaction temperature, reaction pressure 0.3Mpa, reaction time 10h, reaction terminate
After be separated by solid-liquid separation；The solid material separated to be washed with water, liquid-solid ratio presses 3:1, after washing 3 times, filtering, so
It is afterwards that the material of filtering is 3 hours dry under conditions of 120 DEG C, obtain fine fraction rich-titanium material；
Above-mentioned fine fraction rich-titanium material is put into mineral hot furnace and is melted, stops carrying out to electricity after material all fusing
It is cooling.Material frit after cooling control is crushed to 60~120 mesh and obtains chlorination rich-titanium material, composition detection is carried out to it, wherein
TiO2Grade is 91.78%, CaO 0.19%, MgO 1.3%, SiO2It is 2.25%, there may be the entrance of refractory material impurity；
Titanium recovery rate 92.5%, 60~120 mesh granularities account for 84.11%, substantially meet the feedstock specifications requirement of Titanium Dioxide Produced by Chloride Procedure.
Embodiment 3:
As shown in Figure 1, one kind, which is climbed western iron selection tailings, first carries out gravity treatment, to heavy mineral ball milling 30min, magnetic separation is isolated
Then magnetic iron ore carries out flotation, the low silicon ilmenite concentrate main component of gained are as follows: TiO according to the technological parameter of embodiment 12:
48.88%, SiO2: 0.67%, CaO:0.28%, MgO:2.0%, then the tailing after the choosing of low silicon ilmenite concentrate is carried out conventional floating
Choosing, obtains high silicon ilmenite concentrate, ingredient are as follows: TiO2: 45.51%, SiO2: 3.54%.
Pressure leaching in reaction kettle, reaction condition are as follows: the mass ratio of low silicon ilmenite concentrate and hydrochloric acid is added in low silicon ilmenite concentrate
For 1:3, hydrochloric acid mass concentration is 32%, 155 DEG C of reaction temperature, reaction pressure 0.7Mpa, reaction time 8h, after reaction
It is separated by solid-liquid separation；The solid material separated to be washed with water, liquid-solid ratio presses 3:1, after washing 3 times, filtering, then
The material of filtering is 3 hours dry under conditions of 120 DEG C, obtain fine fraction rich-titanium material；
Above-mentioned fine fraction rich-titanium material is put into mineral hot furnace and is melted, is stopped after material all fusing to electricity, by it
It is put into slag pan rapid cooling.By the broken obtained rich-titanium material particle of material frit after cooling, composition detection is carried out to it, wherein
TiO2Grade is 93.01%, CaO 0.17%, MgO 1.11%, SiO2It is 2.31%；Titanium recovery rate 92.9%, 60~140
Mesh granularity accounts for 83.9%, meets the index request of chloride process titanium dioxide powder raw material.
Claims (10)
1. a kind of method using high contents of calcium and magnesium silicon ilmenite concentrate preparation chlorination rich-titanium material, which comprises the following steps:
(1) it by ilmenite concentrate ball milling, then sizes mixing, floating agent is then added and carries out direct flotation, obtains low silicon ilmenite concentrate；
(2) fine fraction rich-titanium material is obtained after carrying out acidleach by resulting low silicon ilmenite concentrate and mixed in hydrochloric acid, be filtered, washed, dry；
(3) will be cooling after the resulting fine fraction rich-titanium material heating melting of step (2), it is then crushed up to chlorination rich-titanium material.
2. a kind of method using high contents of calcium and magnesium silicon ilmenite concentrate preparation chlorination rich-titanium material according to claim 1, feature exist
In floating agent described in step (1) includes collecting agent, foaming agent, regulator, inhibitor, and wherein the additional amount of collecting agent is 3
~8kg/t, the additional amount of foaming agent are 3~7kg/t, and the additional amount of inhibitor is 2~6kg/t；It is top-uped using regulator adjustment
PH when selecting is 3~5.
3. a kind of method using high contents of calcium and magnesium silicon ilmenite concentrate preparation chlorination rich-titanium material according to claim 2, feature exist
In the collecting agent is the mixture of the hydroximic acid that mass ratio is 1:0.3~0.5 and oleic acid, and the foaming agent is No. 98# modified
Medicine, the modification 98# medicine are after the anionic surfactant that mass percent is 0.5~1% is added into 98# medicine
It stirs evenly, obtained by 3~8h of Cheng Hua；The inhibitor is selected from one or both of waterglass, malonic acid；The regulator choosing
From oxalic acid, H2SO4One or both of.
4. a kind of method using high contents of calcium and magnesium silicon ilmenite concentrate preparation chlorination rich-titanium material according to claim 1, feature exist
In the volume ratio of ilmenite concentrate and water is 1:2.5~5 when the step (1) is sized mixing.
5. a kind of method using high contents of calcium and magnesium silicon ilmenite concentrate preparation chlorination rich-titanium material according to claim 1, feature exist
In step (1) the ball milling control ilmenite concentrate partial size is 0.05~0.15mm.
6. a kind of method using high contents of calcium and magnesium silicon ilmenite concentrate preparation chlorination rich-titanium material according to claim 1, feature exist
In, in the step (2) mass ratio of low silicon ilmenite concentrate and hydrochloric acid be 1:1~3, wherein the mass concentration of hydrochloric acid be 18~
32%.
7. a kind of method using high contents of calcium and magnesium silicon ilmenite concentrate preparation chlorination rich-titanium material according to claim 6, feature exist
In acidleach temperature described in step (2) is 120~160 DEG C, acidleach 0.3~0.7Mpa of pressure, and leaching time is 4~10h.
8. a kind of method using high contents of calcium and magnesium silicon ilmenite concentrate preparation chlorination rich-titanium material according to claim 1, feature exist
In, in the step (3) by fine fraction rich-titanium material addition mineral hot furnace be heated to 1500~1900 DEG C melting, be subsequently cooled to room
Temperature is crushed to 60~120 mesh up to chlorination rich-titanium material.
9. a kind of method using high contents of calcium and magnesium silicon ilmenite concentrate preparation chlorination rich-titanium material according to claim 8, feature exist
In by the fine powder material return mineral hot furnace heating melting of broken generation.
10. a kind of method using high contents of calcium and magnesium silicon ilmenite concentrate preparation chlorination rich-titanium material according to claim 1, feature exist
In step (2) are filtered the HCl recovery in resulting filtrate, are back to acidleach process.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110512096A (en) * | 2019-09-19 | 2019-11-29 | 宜宾天原海丰和泰有限公司 | A kind of fine fraction climb western ilmenite concentrate preparation can chlorination rich-titanium material method |
| CN111534706A (en) * | 2020-05-11 | 2020-08-14 | 河南佰利联新材料有限公司 | Method for preparing titanium-rich material from Panxi titanium concentrate |
| CN113264552A (en) * | 2021-05-17 | 2021-08-17 | 宜宾天原海丰和泰有限公司 | Preparation method of titanium-rich chloride material |
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