CN1940098A - Gray manganese ore leaching out process - Google Patents
Gray manganese ore leaching out process Download PDFInfo
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- CN1940098A CN1940098A CN 200610122400 CN200610122400A CN1940098A CN 1940098 A CN1940098 A CN 1940098A CN 200610122400 CN200610122400 CN 200610122400 CN 200610122400 A CN200610122400 A CN 200610122400A CN 1940098 A CN1940098 A CN 1940098A
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- pyrolusite
- manganese
- sulfuric acid
- quality
- ore
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- 238000000034 method Methods 0.000 title claims abstract description 39
- 239000011572 manganese Substances 0.000 title claims abstract description 36
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 title claims abstract description 34
- 229910052748 manganese Inorganic materials 0.000 title claims abstract description 34
- 230000008569 process Effects 0.000 title claims abstract description 17
- 238000002386 leaching Methods 0.000 title claims description 26
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims abstract description 42
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 10
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Inorganic materials O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 claims description 53
- 238000006243 chemical reaction Methods 0.000 claims description 20
- SQQMAOCOWKFBNP-UHFFFAOYSA-L manganese(II) sulfate Chemical compound [Mn+2].[O-]S([O-])(=O)=O SQQMAOCOWKFBNP-UHFFFAOYSA-L 0.000 claims description 20
- 239000002699 waste material Substances 0.000 claims description 19
- 230000002829 reductive effect Effects 0.000 claims description 18
- 239000003795 chemical substances by application Substances 0.000 claims description 17
- 229940099596 manganese sulfate Drugs 0.000 claims description 12
- 239000011702 manganese sulphate Substances 0.000 claims description 12
- 235000007079 manganese sulphate Nutrition 0.000 claims description 12
- 239000007788 liquid Substances 0.000 claims description 11
- 239000000126 substance Substances 0.000 claims description 9
- 239000007787 solid Substances 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 6
- 239000006227 byproduct Substances 0.000 claims description 4
- 235000013379 molasses Nutrition 0.000 claims description 4
- 238000002360 preparation method Methods 0.000 claims description 3
- 238000009923 sugaring Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 2
- 238000002156 mixing Methods 0.000 abstract description 2
- 238000003912 environmental pollution Methods 0.000 abstract 1
- 239000012467 final product Substances 0.000 abstract 1
- 235000012907 honey Nutrition 0.000 abstract 1
- 239000000843 powder Substances 0.000 description 13
- 238000005516 engineering process Methods 0.000 description 11
- 241000196324 Embryophyta Species 0.000 description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 8
- 238000012545 processing Methods 0.000 description 7
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 6
- 241000209094 Oryza Species 0.000 description 6
- 235000007164 Oryza sativa Nutrition 0.000 description 6
- 239000012535 impurity Substances 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- 235000009566 rice Nutrition 0.000 description 6
- 238000000605 extraction Methods 0.000 description 5
- 239000011777 magnesium Substances 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- 239000002994 raw material Substances 0.000 description 5
- 238000006722 reduction reaction Methods 0.000 description 5
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 4
- CZMRCDWAGMRECN-UGDNZRGBSA-N Sucrose Chemical compound O[C@H]1[C@H](O)[C@@H](CO)O[C@@]1(CO)O[C@@H]1[C@H](O)[C@@H](O)[C@H](O)[C@@H](CO)O1 CZMRCDWAGMRECN-UGDNZRGBSA-N 0.000 description 4
- 229930006000 Sucrose Natural products 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 4
- 229910052709 silver Inorganic materials 0.000 description 4
- 239000004332 silver Substances 0.000 description 4
- 239000002893 slag Substances 0.000 description 4
- 239000005720 sucrose Substances 0.000 description 4
- 235000011149 sulphuric acid Nutrition 0.000 description 4
- 239000004215 Carbon black (E152) Substances 0.000 description 3
- -1 Manganse Dioxide Chemical compound 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 239000003245 coal Substances 0.000 description 3
- 229930195733 hydrocarbon Natural products 0.000 description 3
- 150000002430 hydrocarbons Chemical class 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 239000003921 oil Substances 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 239000001117 sulphuric acid Substances 0.000 description 3
- 239000000428 dust Substances 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- AMWRITDGCCNYAT-UHFFFAOYSA-L hydroxy(oxo)manganese;manganese Chemical compound [Mn].O[Mn]=O.O[Mn]=O AMWRITDGCCNYAT-UHFFFAOYSA-L 0.000 description 2
- 230000035800 maturation Effects 0.000 description 2
- VASIZKWUTCETSD-UHFFFAOYSA-N oxomanganese Chemical compound [Mn]=O VASIZKWUTCETSD-UHFFFAOYSA-N 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 241000218691 Cupressaceae Species 0.000 description 1
- XFXPMWWXUTWYJX-UHFFFAOYSA-N Cyanide Chemical compound N#[C-] XFXPMWWXUTWYJX-UHFFFAOYSA-N 0.000 description 1
- MBMLMWLHJBBADN-UHFFFAOYSA-N Ferrous sulfide Chemical compound [Fe]=S MBMLMWLHJBBADN-UHFFFAOYSA-N 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 241000219000 Populus Species 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 238000001311 chemical methods and process Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000012262 fermentative production Methods 0.000 description 1
- 239000012065 filter cake Substances 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000013067 intermediate product Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- GZUCQIMKDHLSEH-UHFFFAOYSA-N manganese silver Chemical compound [Mn][Ag][Ag] GZUCQIMKDHLSEH-UHFFFAOYSA-N 0.000 description 1
- PAVJEQIFHXNOSM-UHFFFAOYSA-H manganese(3+);trisulfate Chemical compound [Mn+3].[Mn+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O PAVJEQIFHXNOSM-UHFFFAOYSA-H 0.000 description 1
- XMWCXZJXESXBBY-UHFFFAOYSA-L manganese(ii) carbonate Chemical compound [Mn+2].[O-]C([O-])=O XMWCXZJXESXBBY-UHFFFAOYSA-L 0.000 description 1
- 235000010755 mineral Nutrition 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 239000010815 organic waste Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- MNWBNISUBARLIT-UHFFFAOYSA-N sodium cyanide Chemical compound [Na+].N#[C-] MNWBNISUBARLIT-UHFFFAOYSA-N 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 229910021653 sulphate ion Inorganic materials 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
- 238000003809 water extraction Methods 0.000 description 1
Landscapes
- Manufacture And Refinement Of Metals (AREA)
Abstract
A gray manganese ore leaching-out process is carried out by crushing, blending with water to obtain ore pulp, adding into sulfuric acid and sugar honey alcohol effluent, agitating at 50-98degree and reacting for 0.5-4hrs to obtain the final product. The leaching-out rate of manganese is >93%. It's simple, has gentle reactive condition and no environmental pollution.
Description
Technical field:
The present invention relates to a kind of gray manganese ore leaching out process, particularly in sulfuric acid medium, make the method that reductive agent leaches pyrolusite with the cane molasses alcohol slops.
Background technology:
The cane molasses alcohol slops is to utilize sugar refinery sugaring by product waste molasses, the waste liquid that mash discharges after primary tower distills out alcohol after fermenting.Be the concentration height, color is dark, acidity is big organic waste water.If this waste liquid is not added processing and directly enters water body, will cause very serious pollution to environment, contain a large amount of useful matteies simultaneously in the waste liquid: solid substance 9%～17%, organism 7%～9.2%, residual sugar 1.9%～3%, COD
Cr8 * 10
4～14 * 10
4Mg/l, BOD 5 * 10
4～7 * 10
4Mg/l, ash content 1.6%～5.0%.The annual by-product waste molasses of China is mainly used to fermentative production alcohol more than 2,000,000 tons.Every production 1m
3Alcohol, just produce 12～14m
3Alcohol slops, the pollution and the recycling that solve waste liquid are problems anxious to be solved.In pollution treatment, recycle the useful component in the waste liquid, turn waste into wealth, increase economic benefit, be the development trend of the waste liquid comprehensive regulation.
Manganse Dioxide in the pyrolusite is insoluble to sulfuric acid, must be reduced into manganese monoxide (MnO) to it by reduction reaction, and ability and sulfuric acid reaction generate manganous sulfate.Manganese sulfate solution is the main raw material of manganese products such as preparation industrial manganic sulfate, manganous carbonate, Manganse Dioxide, trimanganese tetroxide and electrolytic manganese.The method that existing pyrolusite reduction prepares manganous sulfate mainly contains three kinds:
1. coal reducing roasting---sulfuric acid leaching.This method has semicentennial history, is traditional processing technology, technology maturation, and the quality of manganous sulfate is good.But the SO that it produces
2, serious dust pollution of the environment, coal consumption amount is big.
2. two ore deposit roasting methods.With pyrolusite and sulfurous iron ore separated pulverizing, mix, 500 ℃～600 ℃ roasting temperatures 0.5～1 hour, then with the clear water leaching, separate slag after condensing crystal obtain manganous sulfate.This method equally also can produce SO
2And dust, contaminate environment.
3. wet reducing extract technology.With pyrolusite, sulfuric acid and a certain amount of reductive agent hybrid reaction, can obtain manganese sulfate solution with the water extraction regular hour at a certain temperature.Because this technology avoided the high-temperature roasting operation, can not produce and contain SO
2Waste gas, and, simplified technology for single stage method leaches, therefore, this method is the developing direction that pyrolusite leaches.In order to obtain a kind of reductive agent preferably, people have found out many methods, have reported some relevant documents as open source literature, and we take passages as follows by retrieval:
1. [application (patent) number] CN91102845.5[title] wet producing manganese sulfate from two kinds of mine novel process [application (patent right) people] No. 44 [summary] these methods in guest road, lake, Huangshi, Huangshi Power Source Comprehensive Scientific and Technical Inst. [address] 435000 Hubei Province with poor, bad, give up contain MnO
2Manganese ore powder and troilite powder add sulphuric acid soln, generate manganese sulfate solution after the reacting by heating, remove iron ion in the solution with feeding compressed-air actuated method again.
2. [application (patent) number] CN87102046[title] with the sulfurous iron ore reductive agent with method [applying for (patent right) people] this method of cypress village, Guiyang County outskirts of a town township, Electrolytic Manganese Factory, Guiyang County [address] Hunan Province [summary] of producing manganous sulphate solution from manganese dioxide ore, directly soak fine-graded dioxide ore for manganese with sulphuric acid soln, its reaction formula is:
, when temperature of reaction is 85～100 ℃, in 2～4 hours reaction times, reaction end pH value is 6.8～7 o'clock, the leaching rate of Manganse Dioxide is greater than 90%.
3. [application (patent) number] CN200310110442.3[title] pyrolusite do not have method [applying for (patent right) people] No. 404 [summary] these methods of Tian Xueda [address] 410006 Changsha, Hunan new people Lu Shuntai pavilions pyrolusite MnO that the coal reduction prepare manganese sulfate solution
2Make raw material, biogas (CH
4) make reductive agent, by generating the intermediate product that mainly contains MnO after the reduction reaction; Add a certain amount of sulfuric acid then, obtain manganese sulfate solution by leaching technology, reduction reaction is divided two steps: the first step, make reductive agent with biogas, and under the normal temperature aerobic conditions, light biogas, the biogas burning makes pyrolusite powder become the red heat state; Second step, cut off the air supply, continue to supply biogas and continue to add pyrolusite powder, this moment red heat pyrolusite powder and biogas direct reaction, this process liberated heat is kept heating makes initiate pyrolusite powder become the red heat state, continues and the biogas direct reaction, keeps reaction to proceed.
4. [application (patent) number] CN89105118.X[title] a kind of production method [application (patent right) people] Shujiatun District chemical industry technical service station, Chemical Technique Service Centre of Sujiatun District Shenyang City [address] ShenYang, Liaoning Province city [summary] employing manganese content of manganous sulfate puts into reaction tank after mixing greater than 8% manganese ore and rice skin, add dilute sulphuric acid, carry out thermopositive reaction at normal temperatures.Each raw material proportioning by weight is: 15～20 parts of manganese ores, 2～3 parts of rice skins, 20～30 parts of dilute sulphuric acids.When pH value of reactants equals 5, take out with manganese sulfate solution and isolate unreacted intact ore and mud.Filter cake after mud filters with filter, adverse current is drained after repeatedly washing, and the high dope that provides is made through deironing, evaporation, crystallization, drying, crushing packing.
5. the Chinese manganese industry of [autograph] hydrocarbon polymer wet processing manganese-silver ore applied research [author] surplus beautiful show of Sun Yaguang [mechanism] Zhengzhou mineral products comprehensive utilizating research institute [periodical name] .2004,22 (1): the 1-14[digest] study hydrocarbon polymer and soaked manganese-cyaniding silver leaching process principle, condition and application, utilize hydrocarbon polymer and Manganse Dioxide reactions such as starch, sucrose, when control manganese leaching yield 96%, leaching rate of loss＜2% of silver; Soak the manganese slag and adopt the cyanide process desilver, when NaCN consumption 1kg/t slag, extraction time 3h, silver leaching rate 94.15%; Soak two steps of manganese-cyaniding and leach the rate of recovery of silver greater than 92.27%.
6. [autograph] chaff-sulfuric acid directly soaks flat Song of preparation of manganese condition research [author] Yang Ming and pays chemical institute of Li Guobin [mechanism] University Of Science and Technology Of Hunan [periodical name] inorganic chemicals industry, 2005, the 02[digest] be raw material with rice bran and western Hunan pyrolusite, rice bran-sulfuric acid is directly soaked the processing condition that manganese prepares manganous sulfate study.The result shows that the optimum process condition that rice bran-sulfuric acid process is soaked manganese is: soak 250 ℃ of manganese temperature, sulfuric acid massfraction 50% soaks manganese time 75min, and the rice bran consumption is 20% of a pyrolusite powder quality, and the sulfuric acid consumption is 110% of its theoretical consumption.Soak manganese by these processing condition, the leaching yield of manganese can reach more than 95%.
What 7. [autograph] pure plant powder-sulfuric acid process directly leached pyrolusite puts into practice chemical institute of [author] poplar children flat Huang Kelong [mechanism] Central South University [periodical name] Chinese Mining Industry 2001,10 (5): the 54-56[digest] studied with pure plant powder-vitriol oil method and directly leached the new process of pyrolusite.Test-results shows: the leaching yield of manganese is subjected to the influence of factors such as pyrolusite consumption, pure plant powder consumption, vitriol oil consumption, extraction temperature and extraction time in the pyrolusite.This method is under preferable processing condition, and the leaching yield of manganese can reach more than 95%.Directly leach in the new process of pyrolusite at pure plant powder-sulfuric acid, the leaching yield of manganese is subjected to having the greatest impact of vitriol oil consumption in the pyrolusite, its optimum process condition is: sour ore deposit ratio is 2～3: 1 (ml: g), pyrolusite/pure plant powder ratio is 2.0～3.3: 1, liquid-solid ratio is 3: 1, extraction temperature is 90 ℃～95 ℃, and extraction time is 3h, and the leaching yield of manganese can reach more than 95% in the pyrolusite at this moment.
Recognize from above-mentioned result for retrieval, the open source literature introduction mainly be: 1. and 2. document is to use wet producing manganese sulfate from two kinds of mine, the production technology maturation, production cost is lower.But exist the quantity of slag big aborning, it is many to bring impurity into, the problem of filtering and impurity removing difficulty.3. document uses the CH in the biogas
4Make reductive agent, because of biogas does not contain inorganics, so reductive agent is not brought solid impurity into, the easily more purified manganous sulfate of acquisition, and waste water is easy to handle, but this method CH
4Reducing power is poor, leaching yield is low.5. document uses sucrose to make reductive agent, because of sucrose does not contain inorganics substantially, so it is few to bring impurity into, easily obtain more purified manganese sulfate solution, and waste water is easy to handle.But, can cause the rising of production cost because of sucrose price height.4., 6. and 7. document uses pure plant powder to make reductive agent, and its advantage is to utilize local various pure plant powder resource, and reductive agent is cheap and easy to get.But there is pure plant powder hydrolysis saccharogenesis difficulty, needs higher temperature of reaction to reach the more problem of polyacid.In sum, at present the reductive agent that adopted of wet reducing extract technology is desirable not enough.
Summary of the invention:
The purpose of this invention is to provide the gray manganese ore leaching out process that a kind of raw material sources are cheap easily, manufacturing requirements is lower, it is characterized in that utilizing the cane molasses alcohol slops to make reductive agent, the leaching pyrolusite prepares the method for manganese sulfate solution in sulfuric acid medium.
Above-mentioned said cane molasses alcohol slops is to utilize sugar refinery sugaring by product waste molasses, the waste liquid that mash discharges after primary tower distills out alcohol after fermenting.Contain in the waste liquid: solid substance 9%～17%, organism 7%～9.2%, residual sugar 1.9%～3%, COD
Cr8 * 10
4～14 * 10
4Mg/l, BOD 5 * 10
4～7 * 10
4Mg/l, ash content 1.6%～5.0% material such as grade.
Above-mentioned its MnO of said pyrolusite
2Content greater than 20%.
The present invention is achieved in that pyrolusite is pulverized 40～400 orders, with 1～3 times of water modulation ore pulp of pyrolusite quality; Add 0.7～1.5 times of concentration of pyrolusite quality in the ore pulp and be 93～98% sulfuric acid and 1.5～3.5 times cane molasses alcohol slops of pyrolusite quality, stirring reaction obtained reacting leach liquor in 0.5～4 hour under 50～98 ℃ of temperature; To be neutralized to the pH value with lime or Wingdale be 5.5～6.0 to the reaction leach liquor, removes impurity such as heavy metal ion in the solution and calcium, magnesium, silicon then by the method for known chemical subtraction.Filtration obtains the purified manganese sulfate solution, and the leaching yield of manganese is greater than 93%.
The present invention compares with existing pyrolusite leaching-out technique, and its outstanding substantive distinguishing features and obvious improvement is:
(1) employed reductive agent cane molasses alcohol slops is a kind of trade waste that needs processing, and the useful component in this technology utilization waste liquid is turned waste into wealth, and has environmental protection and economic double benefit.
(2) compare as reductive agent with adopting biogas or pure plant powder, the reaction conditions gentleness, speed of response is fast, and leaching process waste residue amount is few, filters easily, and the yield of Mn can improve more than 10%.
(3) compare as reductive agent with adopting sulfurous iron ore, the inorganic impurity of introducing is less, and the purification of follow-up leach liquor is simplified greatly.
Embodiment:
Embodiment 1
Pyrolusite is pulverized 100 orders (forming as shown in table 1), with the water modulation ore pulp of 2 times of pyrolusite quality; Add 1.1 times of concentration of pyrolusite quality in the ore pulp and be the cane molasses alcohol slops (forming as shown in table 2) of 2.5 times of 98% sulfuric acid and manganese ore quality, stirring reaction obtained reacting leach liquor in 2 hours under 90 ℃ of temperature, and the leaching yield of pyrolusite reaches 97.2%.
The composition analysis of table 1 pyrolusite
| Composition | Total Mn | MnO 2 | Fe | SiO 2 | Al 2O 3 | CaO | MgO | S | P |
| Content (%) | 22.25 | 31.78 | 12.35 | 24.17 | 11.36 | 0.12 | 0.12 | 0.005 | 0.078 |
Table 2 cane molasses alcohol slops composition
| Composition | Solid substance | Organism | Residual sugar | COD Cr | BOD 5 | Ash content |
| Content | 13.5％ | 7.3％ | 2.9％ | 13×10 4mg/l | 7×10 4mg/l | 3.0％ |
Embodiment 2
Pyrolusite is pulverized 200 orders (forming as shown in table 1), with the water modulation ore pulp of 3 times of pyrolusite quality; Add 1.5 times of concentration of pyrolusite quality in the ore pulp and be the cane molasses alcohol slops (forming as shown in table 2) of 1.5 times of 98% sulfuric acid and manganese ore quality, stirring reaction obtained reacting leach liquor in 2 hours under 95 ℃ of temperature, and the leaching yield of pyrolusite reaches 96.1%.
Embodiment 3
Pyrolusite is pulverized 40 orders (forming as shown in table 1), with the water modulation ore pulp of 2 times of pyrolusite quality; Add 1.2 times of concentration of pyrolusite quality in the ore pulp and be the cane molasses alcohol slops (forming as shown in table 2) of 2.5 times of 98% sulfuric acid and manganese ore quality, stirring reaction obtained reacting leach liquor in 4 hours under 50 ℃ of temperature, and the leaching yield of pyrolusite reaches 93.3%.
Embodiment 4
Pyrolusite is pulverized 400 orders (forming as shown in table 1), with the water modulation ore pulp of 1 times of pyrolusite quality; Add 0.7 times of concentration of pyrolusite quality in the ore pulp and be the cane molasses alcohol slops (forming as shown in table 2) of 3.5 times of 98% sulfuric acid and manganese ore quality, stirring reaction obtained reacting leach liquor in 0.5 hour under 98 ℃ of temperature, and the leaching yield of pyrolusite reaches 95.2%.
Claims (3)
1, a kind of gray manganese ore leaching out process is characterized in that making reductive agent with the cane molasses alcohol slops, prepares manganese sulfate solution with the sulfuric acid to leach pyrolusite.
2, method according to claim 1 is characterized in that the cane molasses alcohol slops is to utilize sugar refinery sugaring by product waste molasses, the waste liquid that mash discharges after primary tower distills out alcohol after fermenting.Contain in the molasses alcohol waste liquid: solid substance 9%～17%, organism 7%～9.2%, residual sugar 1.9%～3%, COD
Cr8 * 10
4～14 * 10
4Mg/l, BOD5 * 10
4～7 * 10
4Mg/l, ash content 1.6%～5.0% material such as grade.
3, method according to claim 1, its preparation manganous sulfate Step By Condition is as follows:
(1) pyrolusite is pulverized 40～400 orders, with 1～3 times of water modulation ore pulp of pyrolusite quality;
(2) adding 0.7～1.5 times of concentration of pyrolusite quality in the ore pulp is 93～98% sulfuric acid and 1.5～3.5 times cane molasses alcohol slops of pyrolusite quality, and stirring reaction obtained reacting leach liquor in 0.5～4 hour under 50～98 ℃ of temperature.
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|---|---|---|---|
| CNB2006101224005A CN100451139C (en) | 2006-09-21 | 2006-09-21 | Gray manganese ore leaching out process |
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Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101831546A (en) * | 2010-06-10 | 2010-09-15 | 中南大学 | Method for preparing biomass reductant and application thereof |
| CN101886168A (en) * | 2010-07-14 | 2010-11-17 | 广西大学 | Extract technology of semi-manganese oxide ore |
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