CN101333601A - Alkali breakdown process of molybdenum-vanadium multi-metal metallurgy smelting materials - Google Patents
Alkali breakdown process of molybdenum-vanadium multi-metal metallurgy smelting materials Download PDFInfo
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- CN101333601A CN101333601A CNA2008100317389A CN200810031738A CN101333601A CN 101333601 A CN101333601 A CN 101333601A CN A2008100317389 A CNA2008100317389 A CN A2008100317389A CN 200810031738 A CN200810031738 A CN 200810031738A CN 101333601 A CN101333601 A CN 101333601A
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- molybdenum
- vanadium
- metal metallurgy
- alkali
- metallurgy smelting
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
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Abstract
The invention provides a molybdenum-vanadium polymetallic metallurgy material alkaline decomposition method, the method is characterized in that: metallurgy materials are firstly added with lime for calcinations in order to avoid harmful gases such as SO2 produced in the baking process and mass impurities such as P, As and Si produced in the leaching process from entering the solution, and the baked sand obtained by calcinations can be added with a mixture of NaOH or Na2CO3 or NaOH and Na2CO3 and be leached out in water by agitation. The method has the advantages of low processing cost, high leaching rate of valuable metals and good working environment.
Description
Technical field
The present invention relates to a kind of molybdenum-vanadium multi-metal metallurgy smelting materials alkali decomposition.
Background technology
The high impurity ferro-molybdenum that contains scherbinaite colliery, carbon containing nickel-molybdenum ore and obtained by the nickel-molybdenum ore melting is typical molybdenum-vanadium multi-metal metallurgy smelting materials, and their common feature is that difficulty is selected difficult smelting.
It is general 0.8～1% that the bone coal ore deposit contains vanadium, also contains valuable metals such as a spot of molybdenum nickel.Decomposing vanadous stone colliery method commonly used has sodium roasting, and---water logging, calcification baking---acidleach, empty roasting---acidleach, the direct acidleach in bone coal ore deposit and bone coal ore deposit oxygen are pressed acidleach.Stone coal sodium roasting is owing to there is obnoxious flavour such as HCl to produce, and environmental pollution is serious, though and the bone coal acid leaching process does not have smoke pollution, but a large amount of impurity enter leach liquor, the purification process complexity adds the sulfuric acid price increase, and the bone coal acid leaching process does not almost have profit at present.
Contain Mo 3～6%, Ni 2～4%, V 0.2～1.5% and other valuable metal in the carbon containing nickel-molybdenum ore.The atmospheric oxidation roasting is mainly adopted in the decomposition of carbon containing nickel-molybdenum ore at present---and yellow soda ash, sodium hydroxide mix alkali and leach, or after the carbon containing nickel-molybdenum ore atmospheric oxidation roasting, adds alkali re-baking---water logging.These two kinds of decomposition methods, the leaching yield of Mo all can reach more than 95%, but the leaching yield of V has only about 60%, and roasting produce contain SO
2Flue gas needs further to handle.
Contain Mo 8～20%, Ni 4～10%, V 1.5～3.5% and other valuable metal in the high impurity ferro-molybdenum.High impurity ferro-molybdenum is because low temperature softening, its decomposition method is yellow soda ash mechanical activation oxidizing roasting---water logging, the leaching yield of Mo can reach more than 95%, but the leaching yield of V has only about 60%, and impurity such as P, As, Si enter leach liquor in a large number, not only bring difficulty, and influence the rate of recovery of Mo to subsequent technique.
Summary of the invention
In order to improve the molybdenum-vanadium multi-metal metallurgy smelting materials comprehensive recovery; the protection environment; reduce production costs; the invention provides a kind of molybdenum-vanadium multi-metal metallurgy smelting materials alkali decomposition, earlier with metallurgical material calcification oxidizing roasting, the calcining that roasting obtains alkali again leaches; to replace existing molybdenum vanadium multimetal metallurgical material resolving method; reach and improve the comprehensive utilization of resources rate, cut down finished cost, reduce effects such as environmental pollution.
Technical scheme of the present invention is:
Comprise that material is mixed, calcification oxidizing roasting, alkali soaks three steps, adds after lime mix thoroughly by 5～50% of molybdenum-vanadium multi-metal metallurgy smelting materials weight, oxidizing roasting is 1～3 hour under 500～950 ℃ temperature, the obnoxious flavour that roasting produces is (as SO
2Deng) absorbed by lime, the calcining that roasting obtains is pressed 1～10 times of molar weight that theoretical amount that molybdenum, vanadium leach adds the required alkali of reaction again, and agitation leach 0.5～3 hour in 50～100 ℃ of water.
Described molybdenum-vanadium multi-metal metallurgy smelting materials is the high impurity ferro-molybdenum that contains scherbinaite colliery, carbon containing nickel-molybdenum ore or obtained by the smelting of carbon containing nickel-molybdenum ore.
Described lime is unslaked lime (CaO), white lime (Ca (OH)
2) or Wingdale (CaCO
3) in one or more.
Described lime and molybdenum-vanadium multi-metal metallurgy smelting materials are mixed thoroughly to mechanical stirring mixing or ball milling or are ground mixing.
The alkali that the calcining leaching process that described molybdenum-vanadium multi-metal metallurgy smelting materials calcification baking obtains adds is NaOH or Na
2CO
3Or NaOH and Na
2CO
3Mixture.
Press theoretical amount that molybdenum, vanadium leach and add preferred 1～8 times of the molar weight of the required alkali of reaction.
Reaction principle of the present invention is:
2MoS
2+7O
2→2MoO
3+4SO
2
(V
2O
3)
c+O
2→V
2O
5
4FeS
2+11O
2→2Fe
2O
3+8SO
2
2NiS+3O
2→2NiO+2SO
2
Ca(OH)
2+1/2O
2+SO
2→CaSO
4+H
2O
CaCO
3+1/2O
2+SO
2→CaSO
4+CO
2
CaCO
3→CaO+CO
2
CaO+1/2O
2+SO
2→CaSO
4
MoO
3+CaO→CaMoO
4
V
2O
5+CaO→Ca(VO
3)
2
Mo+3/2O
2+CaO→CaMoO
4
2V+5/2O
2+CaO→Ca(VO
3)
2
Ni+1/2O
2→NiO
2Fe+3/2O
2→Fe
2O
3
CaMoO
4+Na
2CO
3→CaCO
3↓+Na
2MoO
4
CaMoO
4+2NaOH→Ca(OH)
2↓+Na
2MoO
4
Ca(VO
3)
2+Na
2CO
3→CaCO
3↓+2NaVO
3
Ca(VO
3)
2+2NaOH→Ca(OH)
2↓+2NaVO
3
The present invention compares with existing technology and has the following advantages and effect:
1. the calcium salt fusing point height that obtains of molybdenum-vanadium multi-metal metallurgy smelting materials calcification baking, the roasting process calcining can not soften and bond, and helps the carrying out of oxidizing roasting.
2. the molybdenum-vanadium multi-metal metallurgy smelting materials calcification baking not only can effectively prevent SO
2Produce Deng obnoxious flavour, and can improve the oxidation efficiency of valuable metals such as Mo, V.
3. the calcining alkali that obtains of molybdenum-vanadium multi-metal metallurgy smelting materials calcification baking soaks the leaching yield height of valuable metal Mo, V.
4. molybdenum-vanadium multi-metal metallurgy smelting materials can effectively suppress the leaching of impurity such as P, As, Si through calcification baking, helps purification and the recovery of Mo, V.
Embodiment
Below in conjunction with embodiment, the present invention is further described.Following examples are intended to illustrate the present invention rather than limitation of the invention further.
Embodiment 1
Contain scherbinaite colliery (V
2O
50.82%) 100g and Wingdale (CaCO
3) levigately behind the broken mixing of 10g put 800 ℃ of oxidizing roastings of retort furnace 2 hours into to negative 200 orders, after the calcining that calcification baking obtains adds water and stirs, add 80 ℃ in 10g yellow soda ash and 2g sodium hydroxide and leach and filtered in 1.5 hours, must contain V
2O
50.11% filter residue 94.7g.
Embodiment 2
After the fragmentation of 100g carbon containing nickel-molybdenum ore with 40g unslaked lime (CaO) mixing after levigate to negative 200 orders, put 600 ℃ of oxidizing roastings of retort furnace 3 hours into, the calcining that calcification baking obtains adds water and stirs, and leaches 5 of theoretical amount by Mo, V and extraordinarily go into 90 ℃ of leachings of yellow soda ash 1 hour.Carbon containing nickel-molybdenum ore calcification oxidizing roasting---yellow soda ash leaching experiment result (%) is as follows:
| Mo Fe Ni Ca As Si S V |
| Nickel-molybdenum ore 3.20 6.41 1.67 17.09 0.87 8.79 8.51 0.78 leached muds 0.13 4.27 1.11 31.87 0.49 5.86 5.67 0.11 |
Embodiment 3
High impurity ferro-molybdenum powder (negative 200 orders) 100g and dry hydrate (Ca (OH)
2) behind the 40g mixing, put 650 ℃ of oxidizing roastings of retort furnace 2 hours into, after the calcining that calcification baking obtains adds water and stirs, leach 2.5 of theoretical amount by Mo, V and extraordinarily go into yellow soda ash and leach 45min for 95 ℃.Carbon containing nickel-molybdenum ore calcification oxidizing roasting---yellow soda ash leaching experiment result (%) is as follows:
| Mo Fe Ni V P Si |
| Ferro-molybdenum 11.06 68.24 4.23 1.56 5.72 3.42 leaching yields 97.12------91.87----- |
Embodiment 4
High impurity ferro-molybdenum powder (negative 200 orders) 100g and dry hydrate (Ca (OH)
2) behind the 45g mixing, put 700 ℃ of oxidizing roastings of retort furnace 1.5 hours into, after the calcining that calcification baking obtains adds water and stirs, add 25g yellow soda ash and 5g sodium hydroxide and leach 150min for 55 ℃.Carbon containing nickel-molybdenum ore calcification oxidizing roasting---alkali leaching experiment result (%) is as follows:
| Mo Fe Ni V P Si |
| Ferro-molybdenum 11.06 68.24 4.23 1.56 5.72 3.42 leaching yields 98.15------92.63----- |
Claims (6)
1, a kind of molybdenum-vanadium multi-metal metallurgy smelting materials alkali decomposition, it is characterized in that, comprise that material is mixed, calcification oxidizing roasting, alkali soaks three steps, add after lime mix thoroughly by 5～50% of molybdenum-vanadium multi-metal metallurgy smelting materials weight, oxidizing roasting is 1～3 hour under 500～950 ℃ temperature, the obnoxious flavour that roasting produces is absorbed by lime, the calcining that roasting obtains, press 1～10 times of molar weight that theoretical amount that molybdenum, vanadium leach adds the required alkali of reaction again, and agitation leach 0.5～3 hour in 50～100 ℃ of water.
2, a kind of molybdenum-vanadium multi-metal metallurgy smelting materials alkali decomposition according to claim 1 is characterized in that, described molybdenum-vanadium multi-metal metallurgy smelting materials is the high impurity ferro-molybdenum that contains scherbinaite colliery, carbon containing nickel-molybdenum ore or obtained by the smelting of carbon containing nickel-molybdenum ore.
3, a kind of molybdenum-vanadium multi-metal metallurgy smelting materials alkali decomposition according to claim 1 is characterized in that, described lime be in unslaked lime, white lime, the Wingdale one or more.
4, a kind of molybdenum-vanadium multi-metal metallurgy smelting materials alkali decomposition according to claim 1 is characterized in that, described lime and molybdenum-vanadium multi-metal metallurgy smelting materials are mixed thoroughly to mechanical stirring mixing or ball milling or ground mixing.
5, a kind of molybdenum-vanadium multi-metal metallurgy smelting materials alkali decomposition according to claim 1 is characterized in that, the alkali that the calcining leaching process that described molybdenum-vanadium multi-metal metallurgy smelting materials calcification baking obtains adds is NaOH or Na
2CO
3Or NaOH and Na
2CO
3Mixture.
6, a kind of molybdenum-vanadium multi-metal metallurgy smelting materials alkali decomposition according to claim 1 is characterized in that, presses preferred 1～8 times of the molar weight that theoretical amount that molybdenum, vanadium leach adds the required alkali of reaction.
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|---|---|---|---|
| CNA2008100317389A CN101333601A (en) | 2008-07-11 | 2008-07-11 | Alkali breakdown process of molybdenum-vanadium multi-metal metallurgy smelting materials |
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|---|---|---|---|
| CNA2008100317389A CN101333601A (en) | 2008-07-11 | 2008-07-11 | Alkali breakdown process of molybdenum-vanadium multi-metal metallurgy smelting materials |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101818244A (en) * | 2010-04-03 | 2010-09-01 | 大连理工大学 | Process method for calcified roasting of boron-rich slag |
| CN102220500A (en) * | 2010-04-14 | 2011-10-19 | 湖南荣宏钼业材料股份有限公司 | Method for producing ammonium molybdate from molybdenum-bismuth bulk concentrates of high impurity content and low grade |
| CN102296181A (en) * | 2011-08-30 | 2011-12-28 | 江苏大学 | Method for smelting high-purity nickel-molybdenum alloy by using complex nickel-molybdenum ore |
| CN103060575A (en) * | 2013-01-10 | 2013-04-24 | 西昌新钒钛有限公司 | Process of purifying dephosphorization slag to extract vanadium in vanadium pentoxide production |
| CN103255288A (en) * | 2012-02-17 | 2013-08-21 | 苏州艾默特材料技术有限公司 | Purification method of industrial molybdenum powder |
| CN103436715A (en) * | 2013-08-09 | 2013-12-11 | 中南大学 | Method of extracting vanadium from stone coal |
| CN103498047A (en) * | 2013-10-23 | 2014-01-08 | 湖南大学 | Process for extracting vanadium through alkaline leaching conducted after stone coal oxidizing roasting |
| CN104531989A (en) * | 2014-12-22 | 2015-04-22 | 核工业北京化工冶金研究院 | Method for reducing leaching acid consumption and impurity dissolution rate of high-acid-consumption vanadium ore |
| CN105112647A (en) * | 2015-09-06 | 2015-12-02 | 中南大学 | Sulfur fixation method of roasting low-grade molybdenite concentrate through lime method |
| CN107475511A (en) * | 2017-07-14 | 2017-12-15 | 上海大学 | It is a kind of by low nickel matte calcification baking acidleach high efficiency extraction nickel, copper, cobalt method |
| CN111534693A (en) * | 2020-04-30 | 2020-08-14 | 广东省资源综合利用研究所 | Resource recovery processing method for smelting wastewater precipitation slag |
-
2008
- 2008-07-11 CN CNA2008100317389A patent/CN101333601A/en active Pending
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101818244A (en) * | 2010-04-03 | 2010-09-01 | 大连理工大学 | Process method for calcified roasting of boron-rich slag |
| CN102220500A (en) * | 2010-04-14 | 2011-10-19 | 湖南荣宏钼业材料股份有限公司 | Method for producing ammonium molybdate from molybdenum-bismuth bulk concentrates of high impurity content and low grade |
| CN102296181A (en) * | 2011-08-30 | 2011-12-28 | 江苏大学 | Method for smelting high-purity nickel-molybdenum alloy by using complex nickel-molybdenum ore |
| CN103255288A (en) * | 2012-02-17 | 2013-08-21 | 苏州艾默特材料技术有限公司 | Purification method of industrial molybdenum powder |
| CN103255288B (en) * | 2012-02-17 | 2014-11-26 | 苏州艾默特材料技术有限公司 | Purification method of industrial molybdenum powder |
| CN103060575A (en) * | 2013-01-10 | 2013-04-24 | 西昌新钒钛有限公司 | Process of purifying dephosphorization slag to extract vanadium in vanadium pentoxide production |
| CN103436715B (en) * | 2013-08-09 | 2014-12-17 | 中南大学 | Method of extracting vanadium from stone coal |
| CN103436715A (en) * | 2013-08-09 | 2013-12-11 | 中南大学 | Method of extracting vanadium from stone coal |
| CN103498047A (en) * | 2013-10-23 | 2014-01-08 | 湖南大学 | Process for extracting vanadium through alkaline leaching conducted after stone coal oxidizing roasting |
| CN104531989A (en) * | 2014-12-22 | 2015-04-22 | 核工业北京化工冶金研究院 | Method for reducing leaching acid consumption and impurity dissolution rate of high-acid-consumption vanadium ore |
| CN105112647A (en) * | 2015-09-06 | 2015-12-02 | 中南大学 | Sulfur fixation method of roasting low-grade molybdenite concentrate through lime method |
| CN107475511A (en) * | 2017-07-14 | 2017-12-15 | 上海大学 | It is a kind of by low nickel matte calcification baking acidleach high efficiency extraction nickel, copper, cobalt method |
| CN107475511B (en) * | 2017-07-14 | 2019-07-23 | 上海大学 | A method of by low nickel matte calcification baking-acidleach high efficiency extraction nickel, copper, cobalt |
| CN111534693A (en) * | 2020-04-30 | 2020-08-14 | 广东省资源综合利用研究所 | Resource recovery processing method for smelting wastewater precipitation slag |
| CN111534693B (en) * | 2020-04-30 | 2021-04-30 | 广东省科学院资源综合利用研究所 | Resource recovery processing method for smelting wastewater precipitation slag |
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Open date: 20081231 |