CN107012316A - The method that many first micro-electrolysis stuffings of Regularization Fe Ni C are produced with lateritic nickel ore - Google Patents
The method that many first micro-electrolysis stuffings of Regularization Fe Ni C are produced with lateritic nickel ore Download PDFInfo
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- CN107012316A CN107012316A CN201710223275.5A CN201710223275A CN107012316A CN 107012316 A CN107012316 A CN 107012316A CN 201710223275 A CN201710223275 A CN 201710223275A CN 107012316 A CN107012316 A CN 107012316A
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- nickel ore
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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
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/46104—Devices therefor; Their operating or servicing
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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
- C22B23/00—Obtaining nickel or cobalt
- C22B23/02—Obtaining nickel or cobalt by dry processes
- C22B23/023—Obtaining nickel or cobalt by dry processes with formation of ferro-nickel or ferro-cobalt
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/46—Apparatus for electrochemical processes
- C02F2201/461—Electrolysis apparatus
- C02F2201/46105—Details relating to the electrolytic devices
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- Manufacturing & Machinery (AREA)
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- Geochemistry & Mineralogy (AREA)
- General Chemical & Material Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Electrochemistry (AREA)
- Water Supply & Treatment (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Electrodes For Compound Or Non-Metal Manufacture (AREA)
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
- Electrolytic Production Of Metals (AREA)
Abstract
The present invention provides a kind of method that many first micro-electrolysis stuffings of Regularization Fe Ni C are produced with lateritic nickel ore, belongs to technical field of resource utilization.The preparation method is prepared into carbonaceous pelletizing after mixing lateritic nickel ore, carbonaceous reducing agent, water, the reduction roasting under the conditions of 900~1300 DEG C of starvations after carbonaceous pelletizing is dried obtains many first micro-electrolysis stuffings of Regularization Fe Ni C.This technique realizes the efficient utilization to lateritic nickel ore, has the advantages that raw material sources are extensive, flow is short, cost is low, added value of product is high.The many first micro-electrolysis stuffings of Regularization Fe Ni C that the present invention is provided are applied to Industrial Wastewater Treatment, can effectively reduce the COD and colourity of waste water, and operation using effect is stable.
Description
Technical field
The present invention relates to technical field of resource utilization, one kind lateritic nickel ore production Regularization Fe-Ni-C is particularly related to many
The method of first micro-electrolysis stuffing.
Background technology
Lateritic nickel ore is veneer of crust weathering type mineral deposit, is mainly distributed on Pacific Rim subtropical zone-tropical rainy area, red
Tropic countries within 30 degree of diatom north and south.The nickeliferous grade of lateritic nickel ore is very stable, nickeliferous scope 0.8~
1.8%, the grade of the high lateritic nickel ore nickel of fraction grades is up to 2~3%, while Iron grade is also higher, typically 10%~
50%.Laterite ore reserves is big, aboundresources, and preservation is in earth's surface, quite convenient for Mining Transport, can open work, dig up mine into
This is low, and dressing and smelting process tends to be ripe.At present, lateritic nickel ore is mainly used in smelting ferronickel.
Fe-C Micro Electrolysis Method is the technique that a kind of Applied Electrochemistry principle handles waste water, also referred to as internal electrolysis, utilizes anode
1.2V potential difference is handled pollutant between (iron) and negative electrode (carbon), particular for organic concentration is big, high toxicity, height
The processing of colourity, difficult biochemical waste water, can significantly cut down chroma in waste water and COD, improve its biodegradability.In Fe-C Micro Electrolysis Method
On the basis of, the method that developed a variety of bimetallics and multiple catalyzing Inner electrolysis, including Fe-Cu, Fe-Ni, Fe-Co, Fe-
Pd, Fe-Cu-C, Fe-Ni-C etc., Cu, Ni, Co, Pd, which substitute C, can obtain bigger electrical potential difference, accelerate the corrosion of Zero-valent Iron, so that
Improve micro-electrolysis stuffing degradation of contaminant effect.
Traditional micro-electrolysis stuffing is to mix iron filings, activated carbon and non-ferrous metal catalyst by proportion, be molded, sintering system
Into, such as production Fe-Ni-C micro-electrolysis stuffings, the raw material used is metal iron powder, nickel powder and activated carbon.Because the raw material used
Price is high, causes filler material cost high, the problems such as product price is high.
The content of the invention
The technical problem to be solved in the present invention is to provide one kind many first light electrolysis of Regularization Fe-Ni-C are produced with lateritic nickel ore
The method of filler.
This method specifically includes following steps：
(1) carbonaceous pelletizing is prepared：Lateritic nickel ore is crushed to -1mm, will it is broken after lateritic nickel ore and carbonaceous reducing agent and
Additive Jia 10% after being well mixed by a certain percentage~25% water pelletizing or pressure ball, it is prepared into carbonaceous pelletizing；
(2) reduction roasting：After carbonaceous pelletizing obtained by step (1) is dried, under the conditions of 900 DEG C~1300 DEG C starvations
Reduction roasting 30min~100min, generation nickel-containing iron alloy particle and carbon granules roasted product are carried out, then in isolating oxygen gas bar
Cooled down under part, obtain many first micro-electrolysis stuffings of Regularization Fe-Ni-C.In roasting process, iron mineral is reduced to metallic iron, nickel minerals
Thing reduced metal nickel, metallic nickel fuses into formation dilval particle in metallic iron.Additive act as rush in roasting process
Enter the reduction of iron mineral and nickel mineral, reduction reaction temperature and shortening reaction time.Because the carbonaceous reducing agent of addition is excessive, roasting
Burn in product with the presence of carbon residue, carbon residue as filler negative electrode.
Wherein, the iron content of lateritic nickel ore used in step (1) is more than 30%, and nickel content is more than 0.5%.Iron, nickel content compared with
Low lateritic nickel ore can also be used for production after improving iron content to more than 30%, nickel content to more than 0.5% by ore dressing means
The many first micro-electrolysis stuffings of Regularization Fe-Ni-C.
Carbonaceous reducing agent used in step (1) is one or more combinations in coal, activated carbon, coke.
Additive in step (1) is one or more combinations in calcium oxide, sodium carbonate, fluorite, borax.
Lateritic nickel ore, carbonaceous reducing agent, the mass ratio of additive are 100 in step (1)：(20~50)：(1~10).
Reduction roasting is carried out under the conditions of starvation in step (2), and product is cooled down under the conditions of starvation after roasting.
The above-mentioned technical proposal of the present invention has the beneficial effect that：
In such scheme, many first micro-electrolysis stuffings of Regularization Fe-Ni-C are directly produced by lateritic nickel ore, with raw material sources
Extensively, it is cheap, the characteristics of production procedure is short, many first micro-electrolysis stuffings of gained Fe-Ni-C are applied to processing industrial wastewater, can
The effectively COD and colourity of reduction waste water, operation using effect is stable.
Brief description of the drawings
Fig. 1 produces the method flow diagram of many first micro-electrolysis stuffings of Regularization Fe-Ni-C for the lateritic nickel ore of the present invention.
Embodiment
To make the technical problem to be solved in the present invention, technical scheme and advantage clearer, below in conjunction with accompanying drawing and tool
Body embodiment is described in detail.
The present invention provides a kind of method that lateritic nickel ore produces many first micro-electrolysis stuffings of Regularization Fe-Ni-C, technological process
As shown in figure 1, including steps such as dispensing, pelletizing/pressure ball, drying, reduction roasting, coolings, giving with reference to specific embodiment
Explanation.
Embodiment 1
The multielement analysis of certain lateritic nickel ore is shown in Table 1, with being before crushed to -1mm.
The multielement analysis of the lateritic nickel ore of table 1
| Composition | TFe | Ni | SiO2 | Al2O3 | MgO | CaO |
| Content (%) | 41.07 | 1.89 | 15.64 | 4.35 | 5.32 | 1.43 |
By lateritic nickel ore：Carbonaceous reducing agent：Additive in mass ratio 100：50：5 weigh well mixed, then Jia 12%
Water is mixed.Carbonaceous reducing agent is anthracite, and additive is calcium oxide, and anthracite and calcium oxide are industrial products.By mixture
Material is prepared into carbonaceous pelletizing on to roll-in ball machine, by carbonaceous pelletizing in 105 DEG C of drying.Carbonaceous pelletizing is put into atmosphere furnace,
Nitrogen charging gas shielded is warming up to 1150 DEG C, is then incubated 1h, and roasting is cooled down under nitrogen protection after terminating with stove, obtained Regularization
The many first micro-electrolysis stuffings of Fe-Ni-C.
Certain silk dye transfer waste water (colourity is handled using many first micro-electrolysis stuffings of Regularization Fe-Ni-C manufactured in the present embodiment
About 800 times, COD is about 1400mg/L, pH：5.3~5.5), under conditions of hydraulic detention time is 7h, chroma in waste water is removed
Rate is 84%, COD removal efficiency 50%；Reactor is continuously run 1 month, and obvious hardened phenomenon is not found, is run more steady
It is fixed.
Embodiment 2
The multielement analysis of certain lateritic nickel ore is shown in Table 2, with being before crushed to -1mm.
The multielement analysis of the lateritic nickel ore of table 2
| Composition | TFe | Ni | SiO2 | Al2O3 | MgO | CaO |
| Content (%) | 33.54 | 0.88 | 18.42 | 6.45 | 7.54 | 3.76 |
By lateritic nickel ore：Carbonaceous reducing agent：Additive in mass ratio 100：40：8 weigh mixing, and the water for then Jia 14% is mixed
It is even.The composition of carbonaceous reducing agent is bituminous coal：Activated carbon：The mass ratio of coke is 50：30：20, bituminous coal, activated carbon, coke are
Industrial products；Additive composition is calcium oxide：Sodium carbonate：Fluorite：Borax mass ratio is 40:30:30, calcium oxide, sodium carbonate, firefly
Stone, borax are industrial products.Mixed material is prepared into carbonaceous pelletizing on to roll-in ball machine, by carbonaceous pelletizing at 105 DEG C
Drying.Carbonaceous pelletizing is put into atmosphere furnace, nitrogen charging gas shielded is warming up to 1000 DEG C, is then incubated 1.5h, roasting terminate after with
Stove is cooled down under nitrogen protection, many first micro-electrolysis stuffings of obtained Regularization Fe-Ni-C.
Certain industrial coking chemical waste water, its COD are handled using many first micro-electrolysis stuffings of Regularization Fe-Ni-C manufactured in the present embodiment
For 18000mg/L, colourity is about 13500 times.Wastewater pH is adjusted to 3 or so, under conditions of hydraulic detention time is 10h, COD
Clearance is 52, and chroma removal rate is 83%.Continuous operation 6 weeks, operation treatment effect is stable, and obvious hardened phenomenon is not found.
Embodiment 3
The multielement analysis of certain lateritic nickel ore is shown in Table 3, with being before crushed to -1mm.
The multielement analysis of the lateritic nickel ore of table 3
| Composition | TFe | Ni | SiO2 | Al2O3 | MgO | CaO |
| Content (%) | 30.33 | 0.78 | 19.36 | 7.87 | 4.41 | 2.65 |
By lateritic nickel ore：Carbonaceous reducing agent：Additive in mass ratio 100：38：2 weigh mixing, and the water for then Jia 14% is mixed
It is even.Carbonaceous reducing agent is coke, and additive composition is sodium carbonate, and coke and sodium carbonate are industrial products.Mixed material is existed
To being prepared into carbonaceous pelletizing in roll-in ball machine, by carbonaceous pelletizing in 105 DEG C of drying.Carbonaceous pelletizing is put into atmosphere furnace, nitrogen charging
Gas shielded is warming up to 1250 DEG C, is then incubated 0.5h, and roasting is cooled down under nitrogen protection after terminating with stove, obtained Regularization
The many first micro-electrolysis stuffings of Fe-Ni-C.
Certain industrial coking chemical waste water, its COD are handled using many first micro-electrolysis stuffings of Regularization Fe-Ni-C manufactured in the present embodiment
For 18000mg/L, colourity is about 13500 times.Wastewater pH is adjusted to 3 or so, under conditions of hydraulic detention time is 11h, COD
Clearance is 48, and chroma removal rate is 81%.Continuous operation 6 weeks, operation treatment effect is stable, and obvious hardened phenomenon is not found.
Described above is the preferred embodiment of the present invention, it is noted that for those skilled in the art
For, on the premise of principle of the present invention is not departed from, some improvements and modifications can also be made, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (8)
1. a kind of method that many first micro-electrolysis stuffings of Regularization Fe-Ni-C are produced with lateritic nickel ore, it is characterised in that：Including as follows
Step：
(1) carbonaceous pelletizing is prepared：It is well mixed by a certain percentage with carbonaceous reducing agent and additive after lateritic nickel ore is crushed, so
After add water pelletizing or pressure ball, be prepared into carbonaceous pelletizing；
(2) reduction roasting：After carbonaceous pelletizing obtained by step (1) is dried, carried out under the conditions of 900 DEG C~1300 DEG C starvations
The roasted product of reduction roasting, generation nickel-containing iron alloy particle and carbon granules, then cools down under the conditions of starvation, obtains regular
Change many first micro-electrolysis stuffings of Fe-Ni-C.
2. the method according to claim 1 that many first micro-electrolysis stuffings of Regularization Fe-Ni-C are produced with lateritic nickel ore, it is special
Levy and be：The iron content of lateritic nickel ore is more than 30% in the step (1), and nickel content is more than 0.5%.
3. the method according to claim 1 that many first micro-electrolysis stuffings of Regularization Fe-Ni-C are produced with lateritic nickel ore, it is special
Levy and be：Carbonaceous reducing agent is one or more combinations in coal, activated carbon, coke in the step (1).
4. the method according to claim 1 that many first micro-electrolysis stuffings of Regularization Fe-Ni-C are produced with lateritic nickel ore, it is special
Levy and be：Additive is one or more combinations in calcium oxide, sodium carbonate, fluorite, borax in the step (1).
5. the method according to claim 1 that many first micro-electrolysis stuffings of Regularization Fe-Ni-C are produced with lateritic nickel ore, it is special
Levy and be：The mass ratio of lateritic nickel ore, carbonaceous reducing agent and additive is 100 in the step (1):(20~50):(1~
10)。
6. the method according to claim 1 that many first micro-electrolysis stuffings of Regularization Fe-Ni-C are produced with lateritic nickel ore, it is special
Levy and be：Lateritic nickel ore granularity is less than 1mm in the step (1).
7. the method according to claim 1 that many first micro-electrolysis stuffings of Regularization Fe-Ni-C are produced with lateritic nickel ore, it is special
Levy and be：The addition of step (1) reclaimed water is the 10%~25% of lateritic nickel ore quality.
8. the method according to claim 1 that many first micro-electrolysis stuffings of Regularization Fe-Ni-C are produced with lateritic nickel ore, it is special
Levy and be：The reduction roasting time is 30min~100min in the step (2).
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101838034A (en) * | 2010-05-27 | 2010-09-22 | 天津大学 | High efficiency hardening resistant micro-electrolysis material and preparation method thereof |
| CN102303915A (en) * | 2011-05-27 | 2012-01-04 | 杨祺 | Method for preparing microelectrolysis filler by using various industrial solid wastes |
| CN102557201A (en) * | 2010-12-17 | 2012-07-11 | 上海洗霸科技股份有限公司 | Micro-electrolysis filling material and preparation method thereof |
| CN104495988A (en) * | 2014-12-02 | 2015-04-08 | 刘达苏 | Production method of spherical iron-carbon micro-electrolysis filler |
| CN104628091B (en) * | 2015-01-24 | 2016-05-04 | 徐艳萍 | A kind of multiple catalyzing micro-electrolysis stuffing and preparation method thereof and application |
| CN106219689A (en) * | 2016-09-14 | 2016-12-14 | 江西理工大学 | The method producing regular iron-carbon micro-electrolysis filler with high ferro cyanidation tailings |
| CN106277224A (en) * | 2016-09-14 | 2017-01-04 | 江西理工大学 | The method producing regular iron-carbon micro-electrolysis filler by iron red mud |
| CN106277225A (en) * | 2016-09-14 | 2017-01-04 | 江西理工大学 | The method producing regular iron-carbon micro-electrolysis filler with high ferro copper ashes |
| CN106335972A (en) * | 2016-11-01 | 2017-01-18 | 河南城建学院 | Iron-carbon microelectrolysis material for paraquat pesticide wastewater treatment and wastewater treatment method |
-
2017
- 2017-04-07 CN CN201710223275.5A patent/CN107012316B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101838034A (en) * | 2010-05-27 | 2010-09-22 | 天津大学 | High efficiency hardening resistant micro-electrolysis material and preparation method thereof |
| CN102557201A (en) * | 2010-12-17 | 2012-07-11 | 上海洗霸科技股份有限公司 | Micro-electrolysis filling material and preparation method thereof |
| CN102303915A (en) * | 2011-05-27 | 2012-01-04 | 杨祺 | Method for preparing microelectrolysis filler by using various industrial solid wastes |
| CN104495988A (en) * | 2014-12-02 | 2015-04-08 | 刘达苏 | Production method of spherical iron-carbon micro-electrolysis filler |
| CN104628091B (en) * | 2015-01-24 | 2016-05-04 | 徐艳萍 | A kind of multiple catalyzing micro-electrolysis stuffing and preparation method thereof and application |
| CN106219689A (en) * | 2016-09-14 | 2016-12-14 | 江西理工大学 | The method producing regular iron-carbon micro-electrolysis filler with high ferro cyanidation tailings |
| CN106277224A (en) * | 2016-09-14 | 2017-01-04 | 江西理工大学 | The method producing regular iron-carbon micro-electrolysis filler by iron red mud |
| CN106277225A (en) * | 2016-09-14 | 2017-01-04 | 江西理工大学 | The method producing regular iron-carbon micro-electrolysis filler with high ferro copper ashes |
| CN106335972A (en) * | 2016-11-01 | 2017-01-18 | 河南城建学院 | Iron-carbon microelectrolysis material for paraquat pesticide wastewater treatment and wastewater treatment method |
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