CN1212236A - Method for producing magnesium oxide and iron oxide red by using metal gangue containing magnesium and iron - Google Patents
Method for producing magnesium oxide and iron oxide red by using metal gangue containing magnesium and iron Download PDFInfo
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- CN1212236A CN1212236A CN 98119058 CN98119058A CN1212236A CN 1212236 A CN1212236 A CN 1212236A CN 98119058 CN98119058 CN 98119058 CN 98119058 A CN98119058 A CN 98119058A CN 1212236 A CN1212236 A CN 1212236A
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- magnesium
- iron
- ore
- rider
- iron oxide
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- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 title claims abstract description 40
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 title claims abstract description 26
- 239000011777 magnesium Substances 0.000 title claims abstract description 26
- 229910052749 magnesium Inorganic materials 0.000 title claims abstract description 26
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 23
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 title claims abstract description 19
- 239000000395 magnesium oxide Substances 0.000 title claims abstract description 15
- 229910052742 iron Inorganic materials 0.000 title claims abstract description 10
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 title claims description 20
- 229910052751 metal Inorganic materials 0.000 title claims description 5
- 239000002184 metal Substances 0.000 title claims description 5
- 238000004519 manufacturing process Methods 0.000 title abstract description 7
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims abstract description 14
- 238000001556 precipitation Methods 0.000 claims abstract description 11
- 238000001354 calcination Methods 0.000 claims abstract description 9
- 238000001914 filtration Methods 0.000 claims abstract description 9
- 159000000003 magnesium salts Chemical class 0.000 claims abstract description 9
- 238000005406 washing Methods 0.000 claims abstract description 9
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 claims abstract description 6
- 238000000227 grinding Methods 0.000 claims abstract description 6
- 239000000654 additive Substances 0.000 claims abstract description 3
- 230000000996 additive effect Effects 0.000 claims abstract description 3
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims abstract 2
- 238000000034 method Methods 0.000 claims description 22
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 12
- 239000007788 liquid Substances 0.000 claims description 10
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 claims description 8
- 239000002893 slag Substances 0.000 claims description 7
- 238000007654 immersion Methods 0.000 claims description 6
- 235000017550 sodium carbonate Nutrition 0.000 claims description 6
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 6
- 239000002994 raw material Substances 0.000 claims description 5
- 239000000706 filtrate Substances 0.000 claims description 4
- 230000004913 activation Effects 0.000 claims description 3
- 238000000926 separation method Methods 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 230000008021 deposition Effects 0.000 claims description 2
- 238000000605 extraction Methods 0.000 claims description 2
- 239000002245 particle Substances 0.000 claims description 2
- 206010024796 Logorrhoea Diseases 0.000 claims 1
- 229910052500 inorganic mineral Inorganic materials 0.000 abstract description 21
- 239000011707 mineral Substances 0.000 abstract description 21
- 150000002505 iron Chemical class 0.000 abstract 1
- 238000000746 purification Methods 0.000 abstract 1
- 235000010755 mineral Nutrition 0.000 description 18
- 235000012245 magnesium oxide Nutrition 0.000 description 8
- 230000008901 benefit Effects 0.000 description 5
- 239000001095 magnesium carbonate Substances 0.000 description 5
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 description 5
- 235000014380 magnesium carbonate Nutrition 0.000 description 5
- 229910000021 magnesium carbonate Inorganic materials 0.000 description 5
- 241001131796 Botaurus stellaris Species 0.000 description 4
- 239000012266 salt solution Substances 0.000 description 4
- 239000013535 sea water Substances 0.000 description 4
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000005065 mining Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 3
- WYTGDNHDOZPMIW-RCBQFDQVSA-N alstonine Natural products C1=CC2=C3C=CC=CC3=NC2=C2N1C[C@H]1[C@H](C)OC=C(C(=O)OC)[C@H]1C2 WYTGDNHDOZPMIW-RCBQFDQVSA-N 0.000 description 2
- 229910001919 chlorite Inorganic materials 0.000 description 2
- 229910052619 chlorite group Inorganic materials 0.000 description 2
- QBWCMBCROVPCKQ-UHFFFAOYSA-N chlorous acid Chemical compound OCl=O QBWCMBCROVPCKQ-UHFFFAOYSA-N 0.000 description 2
- 239000010459 dolomite Substances 0.000 description 2
- 229910000514 dolomite Inorganic materials 0.000 description 2
- 239000011790 ferrous sulphate Substances 0.000 description 2
- 235000003891 ferrous sulphate Nutrition 0.000 description 2
- 229910052892 hornblende Inorganic materials 0.000 description 2
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 description 2
- 229910000359 iron(II) sulfate Inorganic materials 0.000 description 2
- 239000010970 precious metal Substances 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 229910052611 pyroxene Inorganic materials 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229910000570 Cupronickel Inorganic materials 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 235000003283 Pachira macrocarpa Nutrition 0.000 description 1
- 241001083492 Trapa Species 0.000 description 1
- 235000014364 Trapa natans Nutrition 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 210000001367 artery Anatomy 0.000 description 1
- 229910052626 biotite Inorganic materials 0.000 description 1
- 150000005323 carbonate salts Chemical group 0.000 description 1
- 238000001311 chemical methods and process Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- YOCUPQPZWBBYIX-UHFFFAOYSA-N copper nickel Chemical compound [Ni].[Cu] YOCUPQPZWBBYIX-UHFFFAOYSA-N 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 238000003837 high-temperature calcination Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229910052592 oxide mineral Inorganic materials 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 238000000247 postprecipitation Methods 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 235000009165 saligot Nutrition 0.000 description 1
- 235000011121 sodium hydroxide Nutrition 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 229910052569 sulfide mineral Inorganic materials 0.000 description 1
- 210000003462 vein Anatomy 0.000 description 1
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- Manufacture And Refinement Of Metals (AREA)
Abstract
The production process of magnesia and iron oxide red by using magnesium-contained iron-contained gangue associated in the course of mineral beneficiation of metalliferous mineral includes the following steps: breaking and grinding metalliferous mineral ore, using sulfuric acid to leach out magnesium-contained iron-contained gangue from iron ore, respectively make the magnesium and iron feed into solution in the form of its sulfate, then using carbonate as additive to make precipitation and purification to obtain iron salt and magnesium salt, washing, filtering and calcining them to obtain iron oxide and light magnesia with a little tailings or without tailings.
Description
Utilize the method that the magnesium rider is produced magnesium oxide and iron oxide red that contains of metallic ore, belong to mining and metallurgy and chemical technology field.
Known production method of magnesium oxide all is the independent ore with magnesite or rhombspar, perhaps makes raw material with seawater, bittern, salt solution.According to statistics in 1986, producing magnesian raw material in the world had 63% to derive from crystallization magnesite, and 10% derives from crystallite deposition magnesite, and 27% derives from seawater, bittern and salt solution.Make raw material production magnesium oxide with magnesite or dolomite mineral, normally adopt calcination method and carborization, the quality product of producing is not high and the grade fluctuation is bigger, is subjected to the influence of calcining temperature and material purity very big, because long flow path, energy consumption and cost are all higher.The conventional production method of iron oxide red mainly adopts dry method and wet method.Dry method is that ferrous sulfate is got through high-temperature calcination.Wet method is that ferrous sulfate and caustic soda reaction are produced ironic hydroxide, gets through oxidation again.The shortcoming of ordinary method is that production cost height, environmental pollution are serious.
Innovation part of the present invention is: not only reclaim metalliferous mineral in the ore dressing process of metallic ore (as heavy metal ore, rare metal ore and precious metal ore), but also reclaim association in this metallic ore contain magnesium gangue mineral (as serpentine, hornblende, pyroxene, chlorite etc.) and iron-bearing mineral, produce magnesium oxide and iron oxide red.Realize the comprehensive utilization of metalliferous mineral and gangue mineral, utilized the various compositions in the ore fully, improved to several times the economic worth of ore.In some cases, utilize the magnesian output value and the benefit of gangue mineral production, also substantially exceed the output value and the benefit of metalliferous mineral.
The objective of the invention is in the exploitation and ore dressing process of metallic ore, to utilize chemical process, from gangue mineral, produce fine light magnesium oxide and iron oxide red.
Content of the present invention is to realize by following technical scheme:
Figure of description 1 is a process flow sheet of the present invention.Metallic ore carries out the acidleach activation with sulfuric acid after muck, ore grinding, make the magnesium, the iron that contain in magnesium, the rider in this metallic ore enter solution with the form of vitriol, and oxide mineral is also soaked enters solution, and sulfide mineral then is insoluble to sulfuric acid.Through the immersion liquid of solid-liquid separation output with soak slag.Soak slag and send down the step handle to extract corresponding metal, immersion liquid as additive, makes wherein magnesium, iron composition with carbonate or the fractional precipitation of basic carbonate salt form with carbonate.The molysite that is settled out earlier is behind washing and filtering, and precipitation send calcining to obtain iron oxide red.Filtrate continuation adds carbonate, obtains the magnesium salts precipitation.Behind washing and filtering, send calcining, the output light magnesium oxide.
Optimum process condition is in the above-mentioned technology:
1. contain magnesium metallic ore muck to 8～16mm, ore grinding is to 70%-0.074mm to 90%-0.04mm then;
2. acidleach activation liquid-solid ratio 2～4: 1, ore per ton adds 0.5～1 ton in sulfuric acid, is agitation leach 2～4 hours under 70～100 ℃ of conditions in temperature;
3. output immersion liquid and soak slag after the solid-liquid separation is soaked slag and is given next step to handle, to extract contained metalliferous mineral in the ore;
4. immersion liquid enters fractional precipitation, is progressively adding sodium carbonate, and 60～90 ℃ of controlled temperature are settled out molysite earlier under the condition of pH value 4～7.This molysite after filtration, the washing postprecipitation under 800～900 ℃ of temperature, calcine output iron oxide red (Fe
2O
3).Filtrate continuation adds yellow soda ash, under the condition of 40～80 ℃ of controlled temperature, pH value 8～11, and output magnesium salts precipitation;
5. the magnesium salts precipitation is calcined the output light magnesium oxide under 850～900 ℃ of temperature after washing, filtering.
Fig. 1 is a process flow sheet of the present invention
The present invention compared with prior art has the following advantages and good effect:
1. magnesite or dolomite mineral needn't be exploited separately, also salt solution, bittern and seawater needn't be utilized, But utilize metallic ore and by the arteries and veins in the broken and levigate ore of this metallic ore ore dressing requirement Stone, face cost and the comminution expense of having removed magnesium ore from have more been avoided with salt solution, seawater and bittern Deng carrying the expensive of magnesium;
2. take full advantage of the mineral that contain magnesium and iron content of metallic ore, make over the metallic ore ore dressing Be considered to " impurity " in the journey and the gangue of being removed has become recoverable " valuable mineral ", Both improved the economic worth of metallic ore, after having saved again this metallic ore gangue and getting rid of as mine tailing Processing (store up, transportation etc.) expense;
3. owing to being from contain the magnesium gangue, to extract light magnesium oxide with chemical method, therefore than using conventional water chestnut Higher, the better quality of product purity of the method for magnesium ore deposit oxygenerating magnesium;
4. metallic ore has dissolved most of gangue through after the acidleach, makes the metalliferous mineral that soaks in the slag Had good liberation degree of minerals and fresh mineral surfaces, next step is reclaimed with beneficiation method has The floatability of mineral greatly improves during the valency metal, and mineral processing index is greatly improved;
5. owing to the various compositions that take full advantage of in the metallic ore, make the tailings discharging amount in ore dressing plant big Amplitude reduces, and is expected to build up " green mining metallurgical engineering ". It is an advanced technologies that serves multiple.
Embodiment:
Raw material: certain mining area platinum palladium polymetallic ore
Metallic ore major ingredient: Pt+Pd 3.49g/t; MgO 30.60%; Cu 0.16%; Ni 0.201%; Fe
2O
36.63%; FeO 6.54%.Wherein MgO mainly exists with forms such as serpentine, hornblende, pyroxene, chlorite and biotite.Precious metal wherein and copper nickel thing disseminated grain size are superfine, are generally below 10 microns.
Processing condition:
1. the crushing raw ore grinding particle size reaches 80%-0.074mm;
2. acidleach activates operation liquid-solid ratio 3: 1, adds 90～92 ℃ of sulfuric acid 0.5t/t ore, controlled temperature, extraction time 3 hours;
3. add yellow soda ash in leach liquor, control pH value is 4～4.5, and 80 ℃ of temperature are settled out molysite earlier, calcine output iron oxide red (Fe behind this molysite filtration washing under 800 ℃ of conditions of temperature
2O
3).Filtrate continuation adds yellow soda ash, and control pH value 8.5 precipitates magnesium salts under 60 ℃ of conditions of temperature, and this magnesium salts is calcined the output light magnesium oxide under 850 ℃ of conditions of temperature behind washing and filtering.
Technical indicator:
1. the leaching yield of magnesium and iron is more than 95%;
2. iron oxide red purity reaches international one-level;
3. the light magnesium oxide grade is the GB premium grads;
4. the rate of recovery of magnesium and iron (for raw ore) 90%;
To produce 40000 tons of light magnesium oxides and 1.7 ten thousand tons of iron oxide reds per year, then can create net income every year and exceed hundred million yuan in the present embodiment.
Claims (6)
1. method that the magnesium rider is produced magnesium oxide and iron oxide red that contains of utilizing metallic ore, be characterised in that: metallic ore is behind the muck ore grinding, carry out the acidleach activation with sulfuric acid, make the magnesium, the iron that contain in the magnesium rider enter leach liquor with sulphate form, then through the immersion liquid of solid-liquid separation output with soak slag, slag send down the step to extract metal, immersion liquid is carried out fractional precipitation with carbonate as additive, and the molysite that is settled out is behind washing and filtering, precipitation is sent calcining, obtain iron oxide red, liquid continues to add carbonate, obtains magnesium salts, behind washing and filtering, send calcining, the output light magnesium oxide.
2. the method that the magnesium rider is produced magnesium oxide and iron oxide red that contains of utilizing metallic ore according to claim 1 is characterized in that: garrulous ore granularity 8～16mm, grinding particle size 70%-0.074mm to 90%-0.040mm.
3. the method that the magnesium rider is produced magnesium oxide and iron oxide red that contains of utilizing metallic ore according to claim 1, it is characterized in that: acidleach activatory liquid-solid ratio is 2～4: 1, the sulfuric acid add-on is 0.5～1 ton of/ton ore, 70～100 ℃ of extraction temperatures, churning time 2～4 hours.
4. the method that the magnesium rider is produced magnesium oxide and iron oxide red that contains of utilizing metallic ore according to claim 1, it is characterized in that: during fractional precipitation, progressively add yellow soda ash, 60～90 ℃ of the temperature of molysite deposition, pH value 4～7, continue to add yellow soda ash, 40～80 ℃ of magnesium salts temperature of precipitation, pH value 8～11 in the filtrate.
5. the magnesium rider that contains of metallic ore that utilizes according to claim 1 is produced method of magnesium oxide, it is characterized in that: 800～900 ℃ of the calcining temperatures of molysite, 850～900 ℃ of the calcining temperatures of magnesium salts.
6. according to claim 1,2,3,4, the 5 described methods that the magnesium rider is produced magnesium oxide and iron oxide red that contain of utilizing metallic ore, it is characterized in that: raw material be metallic ore contain the magnesium rider.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98119058 CN1212236A (en) | 1998-10-10 | 1998-10-10 | Method for producing magnesium oxide and iron oxide red by using metal gangue containing magnesium and iron |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98119058 CN1212236A (en) | 1998-10-10 | 1998-10-10 | Method for producing magnesium oxide and iron oxide red by using metal gangue containing magnesium and iron |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1212236A true CN1212236A (en) | 1999-03-31 |
Family
ID=5226249
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98119058 Pending CN1212236A (en) | 1998-10-10 | 1998-10-10 | Method for producing magnesium oxide and iron oxide red by using metal gangue containing magnesium and iron |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1212236A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102517445A (en) * | 2012-01-12 | 2012-06-27 | 新疆世全黄金矿业股份有限公司 | Method for extracting minerals from olivine-serpentine ore |
| CN105694539A (en) * | 2016-02-29 | 2016-06-22 | 中国科学院兰州化学物理研究所 | Method for preparing iron oxide red hybridization pigment by means of clay minerals |
-
1998
- 1998-10-10 CN CN 98119058 patent/CN1212236A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102517445A (en) * | 2012-01-12 | 2012-06-27 | 新疆世全黄金矿业股份有限公司 | Method for extracting minerals from olivine-serpentine ore |
| CN105694539A (en) * | 2016-02-29 | 2016-06-22 | 中国科学院兰州化学物理研究所 | Method for preparing iron oxide red hybridization pigment by means of clay minerals |
| CN105694539B (en) * | 2016-02-29 | 2018-05-08 | 中国科学院兰州化学物理研究所 | A kind of method that iron oxide red hybrid pigment is prepared using clay mineral |
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