CN109055725A - A kind of preparation method of low-quality ilmenite concentrate acid pellet - Google Patents
A kind of preparation method of low-quality ilmenite concentrate acid pellet Download PDFInfo
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- CN109055725A CN109055725A CN201811187471.2A CN201811187471A CN109055725A CN 109055725 A CN109055725 A CN 109055725A CN 201811187471 A CN201811187471 A CN 201811187471A CN 109055725 A CN109055725 A CN 109055725A
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- ilmenite concentrate
- low
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- acid pellet
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Classifications
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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
- C22B1/00—Preliminary treatment of ores or scrap
- C22B1/14—Agglomerating; Briquetting; Binding; Granulating
- C22B1/24—Binding; Briquetting ; Granulating
- C22B1/2406—Binding; Briquetting ; Granulating pelletizing
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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
- C22B1/00—Preliminary treatment of ores or scrap
- C22B1/02—Roasting processes
-
- 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
- C22B1/00—Preliminary treatment of ores or scrap
- C22B1/14—Agglomerating; Briquetting; Binding; Granulating
- C22B1/24—Binding; Briquetting ; Granulating
- C22B1/242—Binding; Briquetting ; Granulating with binders
- C22B1/244—Binding; Briquetting ; Granulating with binders organic
Abstract
The invention belongs to metallurgical technology field more particularly to a kind of preparation methods of low-quality ilmenite concentrate acid pellet.This method is using low-quality ilmenite concentrate as primary raw material, with addition of a small amount of super high grade iron concentrate, and add organic binder, by boiling in a covered pot over a slow fire material, pelletizing, drying, oxidizing roasting, cooling after mixing, obtain the excellent ilmenite concentrate acid pellet of metallurgical performance, its compression strength is greater than 2500N, and tumbler index is greater than 93%, and reduction swellability rate is not higher than 10%.This method is not under the premise of influencing ilmenite concentrate treating capacity, it can effectively solve the problems, such as that low-quality ilmenite concentrate pelletizing is difficult, acid pellet is inferior, new method is provided for low-quality ilmenite concentrate pelletizing production, and can be used in the direct-reduction production technology of the gas-based shaft kiln environmental-friendly, low energy consumption with ilmenite concentrate acid pellet prepared by this method, it is the extensive high-efficiency cleaning comprehensive utilization developing new approaches of low-quality ilmenite concentrate.
Description
Technical field
The invention belongs to metallurgical technology field more particularly to a kind of preparation methods of low-quality ilmenite concentrate acid pellet.
Background technique
Although China's titanium Iron Ore Reserve is abundant, rock mine accounts for the overwhelming majority, is mainly distributed on Sichuan, Chengde
With the ground such as Yunnan.The mineral structure of Sichuan area ilmenite is fine and close, and has been dissolved the magnesium and calcium of high level, therefore selects
Ilmenite concentrate grade it is low, non-ferrotitanium impurity content is high, belongs to the low-grade titanium ore of difficult development and utilization.
Majority enterprise produces high titanium slag by raw material of ilmenite concentrate at present, but since ilmenite concentrate granularity is thinner, and it is raw directly to enter furnace
Production is difficult to control, and is unfavorable for maintaining electric furnace stability, it is therefore desirable to ilmenite concentrate pelletizing is made in its pelletizing, while need to be special consideration should be given to
Pellet strength, subsequent smelting generate the less quantity of slag, do not reduce titanium slag TiO2Grade.Due to the change of ilmenite concentrate and common iron ore concentrate
It is different to learn composition, causes their pelletizing oxidation concretion mechanism completely different.Common iron ore pellets oxidation concretion is with bloodstone
Based on recrystallization, supplemented by a small amount of slag phase consolidation, large-scale bloodstone connection crystalline substance is easily formed inside pelletizing, compact structure is easy to
Obtain higher compression strength；FeTiO in ilmenite concentrate pelletizing oxidation process3It is embedded in and destroys bloodstone connection crystal structure, inside pelletizing
Mineral grain disperse, short texture, pellet strength be not high.In addition, ilmenite concentrate is poor compared with the hydrophily of iron ore concentrate, it is difficult to be granulation into
Ball, generallys use ball press technique or with addition of a large amount of special pelletizing binders, the former higher cost, easily damage equipment；The latter often can
It brings new impurity into, not only influences titanium slag grade, but also the quantity of slag increases, and increases the power consumption of smelting titanium slag.
Pangang (Group)Panzhihua Iron and Steel Research Institute(PISI) Co., Ltd. proposes the pelletizing process and pelletizing bonding of a kind of ilmenite concentrate
Agent (101649392 B of CN), with addition of binder contain carboxylic vacation base sodium cellulosate and carbonaceous reducing agent, wherein Na+To electric furnace
Lining is affected, and aggravates lining wear；Carbonaceous reducing agent, which introduces ash content, reduces titanium slag grade, and titanium slag is easy to cause to be formed largely
Glass phase destroys titanium slag activity.106148731 A of patent CN has invented a kind of preparation method of ilmenite concentrate acid pellet, the party
The sodium carboxymethylcellulose and bentonite that method is added to 1.0~1.5% are as binder, to smelt TiO2The acid that content is 74%
Dissolubility titanium slag calculates, and 1.5% bentonite, which is added, can make titanium slag TiO2Content reduces by 2%, simultaneously because the addition of impurity element,
Increase electric furnace smelting burden, power consumption increases；Meanwhile the compression strength for the ilmenite concentrate acid pellet being prepared using this method is omited
It is low, it is not higher than 1000N, is not able to satisfy the working condition of large-scale titanium slag electric furnace, it is required that pellet strength is not less than 1200N.Patent
106222402 B of CN proposes a kind of production method of ilmenite concentrate pelletizing, weigh by weight percentage ilmenite concentrate 60~80%,
Fe2O3Or Fe3O420~40%, match 1.0~1.5% pelletizing of bentonite outside.Firstly, will affect titanium slag quality using bentonite；
Secondly, this method is although intergranular consolidation mechanism when being roasted using ferriferous oxide improves pellet strength, due to used
Pure Fe2O3Or Fe3O4Modified ferriferous oxide is belonged to, oxidation concretion has differences with natural minerals, takes when with ilmenite concentrate
With in use, compatible result is bad, so that ferriferous oxide dosage is almost close to the half of ilmenite concentrate, this is leading to ilmenite concentrate pelletizing
While production cost is significantly increased, the annual amount for the treatment of of ilmenite concentrate is greatly reduced, is unfavorable for the efficient large-scale comprehensive of ilmenite concentrate
It utilizes；Although roasting the pellet strength of 40min under 1250 DEG C of high temperature moreover, adding bentonite, with addition of a large amount of ferriferous oxides
Improvement is still unobvious, and intensity is lower than 2000N.
2000N is below using the pelletizing compression strength that ilmenite concentrate pelletizing preparation method universal at present obtains, it is main to use
In coal base reduction-electro-smelting titanium slag process, the technique high energy consumption, high carbon emission, and titanium slag are dirty by solid reductant ash content
Dye, grade is low, is easily formed glass phase, poor activity.Ilmenite concentrate pellet strength, which is difficult to improve, limits the cleaning of such resource high-efficiency
Comprehensively utilize the exploitation of new process.Gas-based shaft kiln has the advantages such as environmental-friendly, low energy consumption, single machine production capacity is big, production is flexible, with
Coal gas technology gradually mature, gas-based shaft kiln reduction has become China direct-reduction developing direction, extensively successful application
In the various characteristic Metallurgical resources of processing, but it is higher to the intensity requirement for entering furnace pelletizing, need to be greater than 2500N.Single ilmenite concentrate ball
Ferriferous oxide consolidation accounting is few during group's oxidizing roasting, and pellet strength is not easy to improve；And super high grade iron concentrate ferriferous oxide
More, impurity content is extremely low, is individually used for pelletizing, and acid pellet slag phase is few, and volume expansion cannot be absorbed in reduction process, is led
Cause reduction swellability rate larger, pelletizing dusting is serious.
Summary of the invention
(1) technical problems to be solved
For existing technical problem, the present invention provides a kind of preparation method of low-quality ilmenite concentrate acid pellet,
Under the premise of not influencing ilmenite concentrate treating capacity, it is inferior can effectively to solve low-quality ilmenite concentrate pelletizing difficulty, acid pellet
Problem, pellet forming process is simple and acid pellet quality is high, provides new method, and titanium obtained for low-quality ilmenite concentrate pelletizing production
Concentrate Pellet can be used for the gas-based shaft kiln directly reduced production technology environmental-friendly, low energy consumption, be that low-quality ilmenite concentrate is extensive
High-efficiency cleaning comprehensive utilization developing new approaches.
(2) technical solution
The present invention provides a kind of preparation method of low-quality ilmenite concentrate acid pellet, includes the following steps:
S1, ingredient: low-quality ilmenite concentrate powder, superelevation grade fine iron breeze, organic binder and water are mixed in proportion, obtained
To mixed raw material；
S2, stewing material: the mixed raw material is subjected to stewing material processing, i.e. sealing and standing；
S3, pelletizing: the mixed raw material boiled in a covered pot over a slow fire is prepared into green-ball；
S4, drying: by the green-ball through dry obtained ilmenite concentrate pelletizing；
S5, oxidizing roasting and cooling: will be dried ilmenite concentrate pellet roasting obtained, and rear natural cooling obtains titanium essence
Mine acid pellet.
Such as above-mentioned scheme, it is preferable that the mass ratio of the low-quality ilmenite concentrate powder and superelevation grade fine iron breeze is 9:1
~8:2.
Such as above-mentioned scheme, the mass fraction of TFe is 25~31%, TiO in the low-quality ilmenite concentrate powder2Quality point
Number is 38~45%, the mass fraction of CaO+MgO is 8~10%.
Such as above-mentioned scheme, it is preferable that the mass fraction of TFe is more than or equal in the superelevation grade fine iron breeze
71.5%, SiO2And the mass fraction of other sour insoluble impurities is less than or equal to 0.3%.
Such as above-mentioned scheme, it is preferable that the quality hundred of miberal powder of the granularity less than 0.074mm in the low-quality ilmenite concentrate powder
Score is more than or equal to 80%；The mass percent of miberal powder of the granularity less than 0.074mm is greater than in the superelevation grade fine iron breeze
Equal to 80%.
Such as above-mentioned scheme, it is preferable that in the step S1, organic binder accounts for the mass fraction of mixed raw material
Less than or equal to 0.5%, mixing time is 8~10min.
Such as above-mentioned scheme, it is preferable that in the step S2, boil in a covered pot over a slow fire the material time more than or equal to 50min.
Such as above-mentioned scheme, it is preferable that in the step S3, the partial size of green-ball is 10~12.5mm, wherein green-ball
Drop strength is more than or equal to 12N more than or equal to 5 times, compression strength, and the mass fraction that moisture accounts for green-ball is 8~9%.
Such as above-mentioned scheme, it is preferable that in the step S4, drying temperature is less than or equal to 105 DEG C, and drying time is greater than
Equal to 5h.
Such as above-mentioned scheme, it is preferable that in the step S5, ilmenite concentrate pelletizing obtained will be dried and be put into furnace
In the high temperature furnace that temperature is 300 DEG C, and it is passed through air, is warming up to 1230~1280 DEG C with the rate of 4~6 DEG C/min and is roasted,
And 25~30min is kept, rear natural cooling obtains ilmenite concentrate acid pellet, and the compression strength of the ilmenite concentrate acid pellet is greater than
Equal to 2500N, tumbler index is greater than 93%, and reduction swellability rate is less than or equal to 10%.
(3) beneficial effect
The beneficial effects of the present invention are:
1, method provided by the invention can effectively solve low-quality titanium essence under the premise of not influencing ilmenite concentrate treating capacity
Mine pelletizing difficulty, the inferior problem of acid pellet, pellet forming process is simple and acid pellet quality is high, is low-quality ilmenite concentrate ball
Group's production provides new method.
2, method provided by the invention fully considers the basic characteristic of low-quality ilmenite concentrate and super high grade iron concentrate, and
The difference and advantage for taking into account the two are mutually formed in high temperature oxidation roasting red using magnetic iron ore more in super high grade iron concentrate
Iron ore connection is brilliant, improves bloodstone and recrystallizes the accounting in ilmenite concentrate pelletizing oxidation concretion, improves pellet strength.Meanwhile superelevation
The impurity content of grade iron ore concentrate it is extremely low and addition organic binder roasting after noresidue on titanium slag influence it is smaller, favorably
In acquisition high-quality titanium slag.
3, the gas-based shaft kiln environmental-friendly, low energy consumption can be used for using acid pellet prepared by method provided by the invention
It is reduced directly in production technology, is the extensive high-efficiency cleaning comprehensive utilization developing new approaches of low-quality ilmenite concentrate.
Specific embodiment
In order to preferably explain the present invention, in order to understand, by specific embodiment, the present invention is described in detail.
Embodiment 1
Using low-quality ilmenite concentrate and super high grade iron concentrate as raw material in the present embodiment, wherein TFe in low-quality ilmenite concentrate
Mass fraction be 31%, TiO2Mass fraction be 39%, the mass fraction of CaO+MgO is 8.3%, super high grade iron concentrate
The mass fraction of middle TFe is 71.8%, SiO2Mass fraction be 0.2%.
S1, ingredient: the low-quality ilmenite concentrate powder, superelevation grade fine iron breeze, pendant benefit organic binder and water are pressed
Ratio obtains mixed raw material using the mixed 8min of planetary batch mixer.Wherein, low-quality ilmenite concentrate powder and super high grade iron
The mass ratio of concentrate powder is 9:1, miberal powder of the granularity less than 0.074mm in low-quality ilmenite concentrate powder and superelevation grade fine iron breeze
Mass percent is the 80% of respective miberal powder, and organic binder additional proportion is material total amount by mass percentage
0.4%.
S2, stewing material: by mixed raw material sealing and standing 50min.
The mixed raw material boiled in a covered pot over a slow fire: being prepared into the green-ball of 10~12.5mm of partial size using disc balling machine by S3, pelletizing,
In, the drop strength of green-ball 5 times, compression strength 13N, the mass fraction of moisture is 8.5%.
S4, drying: the green-ball is put into the well-dried obtained ilmenite concentrate pelletizing of drying box.Wherein, drying temperature is
105 DEG C, drying time 5h.
S5, oxidizing roasting and cooling: ilmenite concentrate pelletizing made from being dried, which is placed in 300 DEG C of high temperature furnace, to be roasted
Burn, and be passed through air, be warming up to 1250 DEG C with the rate of 5 DEG C/min and keep 25min, after pelletizing is taken out simultaneously from high temperature furnace
Natural cooling obtains ilmenite concentrate acid pellet.After tested, the compression strength of ilmenite concentrate acid pellet is 2580N, and tumbler index is
93.5%, reduction swellability rate is 7.6%.
Embodiment 2
Using low-quality ilmenite concentrate powder in the same manner as in Example 1 and superelevation grade fine iron breeze as former in embodiment 2
Material.
S1, ingredient: the low-quality ilmenite concentrate powder, superelevation grade fine iron breeze, pendant benefit organic binder and water are pressed
Ratio obtains mixed raw material using the mixed 8min of planetary batch mixer.Wherein, low-quality ilmenite concentrate powder and super high grade iron
The mass ratio of concentrate powder is 9:1, miberal powder of the granularity less than 0.074mm in low-quality ilmenite concentrate powder and superelevation grade fine iron breeze
Mass percent is the 85% of respective miberal powder, and organic binder additional proportion is material total amount by mass percentage
0.4%.
S2, stewing material: by mixed raw material sealing and standing 50min.
The mixed raw material boiled in a covered pot over a slow fire: being prepared into the green-ball of 10~12.5mm of partial size using disc balling machine by S3, pelletizing,
In, the drop strength of green-ball 6 times, compression strength 13N, the mass fraction of moisture is 8.7%.
S4, drying: the green-ball is put into the well-dried obtained ilmenite concentrate pelletizing of drying box.Wherein, drying temperature is
105 DEG C, drying time 5h.
S5, oxidizing roasting and cooling: ilmenite concentrate pelletizing made from being dried, which is placed in 300 DEG C of high temperature furnace, to be roasted
Burn, and be passed through air, be warming up to 1250 DEG C with the rate of 5 DEG C/min and keep 30min, after pelletizing is taken out simultaneously from high temperature furnace
Natural cooling obtains ilmenite concentrate acid pellet.After tested, the compression strength of ilmenite concentrate acid pellet is 2620N, and tumbler index is
94%, reduction swellability rate is 6.8%.
Embodiment 3
Using low-quality ilmenite concentrate powder in the same manner as in Example 1 and superelevation grade fine iron breeze as former in embodiment 3
Material.
S1, ingredient: the low-quality ilmenite concentrate powder, superelevation grade fine iron breeze, pendant benefit organic binder and water are pressed
Ratio obtains mixed raw material using the mixed 10min of planetary batch mixer.Wherein, low-quality ilmenite concentrate powder and superelevation grade
The mass ratio of fine iron breeze is 8:2, and granularity is less than the miberal powder of 0.074mm in low-quality ilmenite concentrate powder and superelevation grade fine iron breeze
Mass percent be the 80% of respective miberal powder, organic binder additional proportion is material total amount by mass percentage
0.4%.
S2, stewing material: by mixed raw material sealing and standing 50min.
The mixed raw material boiled in a covered pot over a slow fire: being prepared into the green-ball of 10~12.5mm of partial size using disc balling machine by S3, pelletizing,
In, the drop strength of green-ball 6 times, compression strength 14N, the mass fraction of moisture is 8.6%.
S4, drying: the green-ball is put into the well-dried obtained ilmenite concentrate pelletizing of drying box.Wherein, drying temperature is
105 DEG C, drying time 5h.
S5, oxidizing roasting and cooling: ilmenite concentrate pelletizing made from being dried, which is placed in 300 DEG C of high temperature furnace, to be roasted
Burn, and be passed through air, be warming up to 1280 DEG C with the rate of 5 DEG C/min and keep 30min, after pelletizing is taken out simultaneously from high temperature furnace
Natural cooling obtains ilmenite concentrate acid pellet.After tested, the compression strength of ilmenite concentrate acid pellet is 2867N, and tumbler index is
95%, reduction swellability rate is 7.1%.
The technical principle of the invention is described above in combination with a specific embodiment, these descriptions are intended merely to explain of the invention
Principle shall not be construed in any way as a limitation of the scope of protection of the invention.Based on explaining herein, those skilled in the art
It can associate with other specific embodiments of the invention without creative labor, these modes fall within this hair
Within bright protection scope.
Claims (10)
1. a kind of preparation method of low-quality ilmenite concentrate acid pellet, which comprises the steps of:
S1, ingredient: low-quality ilmenite concentrate powder, superelevation grade fine iron breeze, organic binder and water are mixed in proportion, mixed
Raw material after conjunction；
S2, stewing material: the mixed raw material is subjected to stewing material processing；
S3, pelletizing: the mixed raw material boiled in a covered pot over a slow fire is prepared into green-ball；
S4, drying: by the green-ball through dry obtained ilmenite concentrate pelletizing；
S5, oxidizing roasting and cooling: will be dried ilmenite concentrate pellet roasting obtained, and rear natural cooling obtains ilmenite concentrate oxygen
Pellet.
2. the preparation method of low-quality ilmenite concentrate acid pellet according to claim 1, which is characterized in that described low-quality
The mass ratio of ilmenite concentrate powder and superelevation grade fine iron breeze is 9:1~8:2.
3. the preparation method of low-quality ilmenite concentrate acid pellet according to claim 1, which is characterized in that described low-quality
The mass fraction of TFe is 25~31%, TiO in ilmenite concentrate powder2Mass fraction be 38~45%, mass fraction of CaO+MgO
It is 8~10%.
4. the preparation method of low-quality ilmenite concentrate acid pellet according to claim 1, which is characterized in that the superelevation product
The mass fraction of TFe is more than or equal to 71.5%, SiO in the fine iron breeze of position2And the mass fraction of other sour insoluble impurities is less than
Equal to 0.3%.
5. the preparation method of low-quality ilmenite concentrate acid pellet according to claim 1, which is characterized in that described low-quality
The mass percent of miberal powder of the granularity less than 0.074mm is more than or equal to 80% in ilmenite concentrate powder；The superelevation grade fine iron breeze
The mass percent of miberal powder of the middle granularity less than 0.074mm is more than or equal to 80%.
6. the preparation method of low-quality ilmenite concentrate acid pellet according to claim 1, which is characterized in that in the step
In S1, the mass fraction that organic binder accounts for mixed raw material is less than or equal to 0.5%, and mixing time is 8~10min.
7. the preparation method of low-quality ilmenite concentrate acid pellet according to claim 1, which is characterized in that in the step
In S2, the material time is boiled in a covered pot over a slow fire more than or equal to 50min.
8. the preparation method of low-quality ilmenite concentrate acid pellet according to claim 1, which is characterized in that in the step
In S3, the partial size of green-ball is 10~12.5mm, wherein the drop strength of green-ball is more than or equal to more than or equal to 5 times, compression strength
12N, the mass fraction that moisture accounts for green-ball is 8~9%.
9. the preparation method of low-quality ilmenite concentrate acid pellet according to claim 1, which is characterized in that in the step
In S4, drying temperature is less than or equal to 105 DEG C, and drying time is more than or equal to 5h.
10. the preparation method of low-quality ilmenite concentrate acid pellet according to claim 1, which is characterized in that in the step
In rapid S5, ilmenite concentrate pelletizing obtained will be dried and be put into the high temperature furnace that furnace temperature is 300 DEG C, and be passed through air, with 4~
The rate of 6 DEG C/min is warming up to 1230~1280 DEG C and is roasted, and keeps 25~30min, and rear natural cooling obtains ilmenite concentrate
Acid pellet, the compression strength of the ilmenite concentrate acid pellet are more than or equal to 2500N, and tumbler index is greater than 93%, reduction swellability
Rate is less than or equal to 10%.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114380329A (en) * | 2021-12-06 | 2022-04-22 | 宜宾天原海丰和泰有限公司 | Resource utilization method of titanium slag dust |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104946885A (en) * | 2015-06-18 | 2015-09-30 | 首钢京唐钢铁联合有限责任公司 | Production method of titanium-contained pellet |
| CN105018748A (en) * | 2015-08-04 | 2015-11-04 | 江苏省冶金设计院有限公司 | Comprehensive treatment method of red mud and titanium concentrate |
| CN105714109A (en) * | 2016-04-12 | 2016-06-29 | 中南大学 | Preparation method of high-strength high-titanium pellets |
| CN106148731A (en) * | 2016-08-10 | 2016-11-23 | 攀钢集团攀枝花钢铁研究院有限公司 | The preparation method of ilmenite concentrate acid pellet |
| CN106222402A (en) * | 2016-09-27 | 2016-12-14 | 攀钢集团攀枝花钢铁研究院有限公司 | A kind of production method of ilmenite concentrate pelletizing |
| CN108359792A (en) * | 2018-03-19 | 2018-08-03 | 攀枝花学院 | Ilmenite concentrate and vanadium iron concentrate bulk concentrate acidic oxidation pelletizing and preparation method thereof |
-
2018
- 2018-10-12 CN CN201811187471.2A patent/CN109055725B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104946885A (en) * | 2015-06-18 | 2015-09-30 | 首钢京唐钢铁联合有限责任公司 | Production method of titanium-contained pellet |
| CN105018748A (en) * | 2015-08-04 | 2015-11-04 | 江苏省冶金设计院有限公司 | Comprehensive treatment method of red mud and titanium concentrate |
| CN105714109A (en) * | 2016-04-12 | 2016-06-29 | 中南大学 | Preparation method of high-strength high-titanium pellets |
| CN106148731A (en) * | 2016-08-10 | 2016-11-23 | 攀钢集团攀枝花钢铁研究院有限公司 | The preparation method of ilmenite concentrate acid pellet |
| CN106222402A (en) * | 2016-09-27 | 2016-12-14 | 攀钢集团攀枝花钢铁研究院有限公司 | A kind of production method of ilmenite concentrate pelletizing |
| CN108359792A (en) * | 2018-03-19 | 2018-08-03 | 攀枝花学院 | Ilmenite concentrate and vanadium iron concentrate bulk concentrate acidic oxidation pelletizing and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114380329A (en) * | 2021-12-06 | 2022-04-22 | 宜宾天原海丰和泰有限公司 | Resource utilization method of titanium slag dust |
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