CN102069033A - Method for separating and extracting feldspar ore with complex impurity components - Google Patents
Method for separating and extracting feldspar ore with complex impurity components Download PDFInfo
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Abstract
The invention relates to a method for separating and extracting feldspar ore with complex impurity components, which comprises the following steps of: 1) performing ball milling on the feldspar ore with complex impurity components through a ball mill; 2) performing classification and de-sliming on the milled feldspar ore by using an improved hydraulic classifier; 3) performing low-intensity magnetic separation on the classified feldspar ore through a low-intensity magnetic separator to obtain high-intensity magnetic substances and rough feldspar concentrate for high-intensity magnetic separation; 4) performing high-intensity magnetic separation on the rough feldspar concentrate obtained by the low-intensity magnetic separation through a high-intensity magnetic separator to obtain low-intensity magnetic substances and rough feldspar concentrate for flotation; and 5) performing size mixing and segmentation on the rough feldspar concentrate obtained by the high-intensity magnetic separation, adding a flotation agent, and performing reverse flotation, impurity removal and dehydration through a flotation machine to remove impurities and obtain fine feldspar and quartz mixed powder and flotation water.
Description
Technical field
The present invention relates to the separating and extracting process in a kind of feldspar ore deposit, relate in particular to a kind of separating and extracting process of feldspar ore deposit of impurity component complexity, belong to metallurgy and chemical field.
Background technology
According to feldspar mineral deposit kind and ore different in kind, need to adopt different beneficiation methods.Along with feldspar is composed the mineral deposit difference of depositing, ore character, accompanying impurities also possibility are different, respectively select the following ore dressing principle process of the general employing of factory at present both at home and abroad: the high-quality feldspar of output in (1) pegmatite: picking → fragmentation → ore grinding or water-powered roller → classification; (2) feldspar in the weathered granite: broken ore deposit → ore grinding → classification → flotation; (3) feldspar in the aplite generally contains mica, sometimes iron content: fragmentation → ore grinding → screening → magnetic separation; (4) feldspathic placer: washing desliming → screening or FLOTATION SEPARATION quartz.
Yet these several principle process can obtain feldspar concentrate and be used for selling just at the feldspar that ore character is simple relatively, impurity component is single, content is lower, still for the feldspar ore deposit of mineralogical composition complexity, are in the present situation of not exploited at present.
Summary of the invention
The present invention is directed to the deficiencies in the prior art, a kind of separating and extracting process of feldspar ore deposit of impurity component complexity is provided, to reach by the shirtsleeve operation step feldspar ore deposit of removing impurities complicated component, the purpose of the feldspar concentrate of acquisition high-quality.
The technical scheme that the present invention solves the problems of the technologies described above is as follows: a kind of separating and extracting process of feldspar ore deposit of impurity component complexity may further comprise the steps:
1) ore grinding is carried out by ball mill in the feldspar ore deposit of impurity component complexity;
2) the mining modified hydraulic classifier of the feldspar behind the ore grinding is carried out graded desliming;
3) low intensity magnetic separation is carried out by the low intensity magnetic separation machine in the feldspar ore deposit after the classification, separate the feldspar rough concentrate that obtains the ferromagnetism thing and go into high intensity magnetic separation;
4) the feldspar rough concentrate that obtains after the low intensity magnetic separation is carried out high intensity magnetic separation by intensity magnetic separator, separate the feldspar rough concentrate that obtains weak magnetic thing and go into flotation.
5) the feldspar rough concentrate that obtains behind the high intensity magnetic separation is added floating agent through the segmentation of sizing mixing and carry out reverse flotation removal of impurities dehydration,, obtain feldspar and quartzy smart powder of mixing and flotation water to remove impurity by flotation device.
The invention has the beneficial effects as follows: by the ore-dressing technique of weak magnetic+strong three kinds of process integrations of magnetic+flotation, handle in feldspar ore deposit to impure complicated component, has removed impurity such as mechanical iron, iron oxide, mica, pyroxene, garnet, chlorite, tourmaline effectively; The feldspar of purifying to greatest extent improves and burns the plate whiteness, and by adding the floating agent flotation, obtained the smart powder of top grade feldspar, it can produce the superior product that satisfies pottery, glass industry feldspar, and technology is simple, save cost, and improve production capacity by ball milling.
On the basis of technique scheme, the present invention can also do following improvement.
Further, described step 2) the feldspar ore deposit in behind the graded desliming reaches monomer dissociation, meets the mog condition into flotation.
Adopt the beneficial effect of above-mentioned further scheme to be, obtain the qualified flotation pulp of going into behind the graded desliming, alleviate the influence that grinding particle size produces flotation operation.
Further, the magnetic field intensity of the low intensity magnetic separation described in the described step 3) is 10000e～30000e.
Further, the magnetic field intensity of the high intensity magnetic separation described in the described step 4) is 80000e～120000e.
Adopt the beneficial effect of above-mentioned further scheme to be, remove the iron oxide that contains in mechanical iron and the ore, reduce the content of iron in the ore pulp.
Further, the reverse flotation in the described step 5) comprises that reverse flotation deironing step and reverse flotation remove the mica step.
Adopt the beneficial effect of above-mentioned further scheme to be, reverse flotation obtains irony thing and mica, has effectively removed the influence to the smart powder of feldspar of iron and mica mineral, obtains the feldspar and the smart powder of quartzy mixing of top grade.
Further, described reverse flotation also has a reverse flotation to remove the tourmaline step after removing the mica step.Adopt the beneficial effect of above-mentioned further scheme to be, reverse flotation is removed tourmaline, reduces the influence of tourmaline to the smart powder quality of feldspar.
Further, described floating agent is a kind of or any several mixture in carboxylic acids collecting agent, fatty alkyl amine salt or the Sulfonates collecting agent, the structural formula of wherein said carboxylic acids collecting agent is represented by following general formula (I), the structural formula of described fatty alkyl amine salt is by following general formula (II) expression, and the structural formula of described Sulfonates collecting agent is represented by following general formula (III):
R-C0OH (Na
+Or K
+) (I)
Wherein, R represents C
8-C
20Alkyl;
RNH2·HX (II)；
Wherein R represents C
2-C
20Fatty alkyl, X represents halogen or acid group;
RSO
3Na (III)
Wherein, R represents C
8-C
20Alkyl.
Adopt the beneficial effect of above-mentioned further scheme to be,, select rational regime of agent according to the difference of gangue composition, determine single drug or mixed reagent, remove the impurity component in the ore, the content with impurity such as iron, mica in the control ore lattice obtains the smart powder of top grade feldspar.
Further, described X is preferably chlorine.
Adopt the beneficial effect of above-mentioned further scheme to be, prevent to pollute, extract effectively.
Further, the flotation water circulation use of the dehydration of the reverse flotation in described step 5) back gained.
Adopt the beneficial effect of above-mentioned further scheme to be, the flotation water circulation use can reduce the new water consumption of ore dressing, wastewater zero discharge, safety and environmental protection.
Further, also comprise a direct flotation step after the described step 5), it adopts direct flotation to carry out feldspar dehydration respectively and quartzy dehydration separates, the feldspar essence powder and quartzy smart powder and the flotation water that obtain being further purified.
Adopt the beneficial effect of above-mentioned further scheme to be, can access smart powder of the higher feldspar of quality and quartzy smart powder.
Further, the flotation water circulation use of gained after the described direct flotation dehydration.
Adopt the beneficial effect of above-mentioned further scheme to be, the flotation water circulation use can reduce the new water consumption of ore dressing, wastewater zero discharge, safety and environmental protection.
The feldspar concentrate iron-holder that extracting method of the present invention obtains can be controlled in below 0.1%, and minimum content can reach 0.03%, burns the plate whiteness more than 65.
Description of drawings
Fig. 1 is the flow chart of separating and extracting process in the feldspar ore deposit of impurity component complexity of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing principle of the present invention and feature are described, institute gives an actual example and only is used to explain the present invention, is not to be used to limit scope of the present invention.
As shown in Figure 1, the separating and extracting process in the feldspar ore deposit of impurity component complexity of the present invention may further comprise the steps:
1) ore grinding is carried out by ball mill in the feldspar ore deposit of impurity component complexity;
2) the mining modified hydraulic classifier of the feldspar behind the ore grinding is carried out graded desliming;
3) low intensity magnetic separation is carried out by the low intensity magnetic separation machine in the feldspar ore deposit after the classification, separate the feldspar rough concentrate that obtains the ferromagnetism thing and go into high intensity magnetic separation;
4) the feldspar rough concentrate that obtains after the low intensity magnetic separation is carried out high intensity magnetic separation by intensity magnetic separator, separate the feldspar rough concentrate that obtains weak magnetic thing and go into flotation.
5) the feldspar rough concentrate that obtains behind the high intensity magnetic separation is added floating agent through the segmentation of sizing mixing and carry out reverse flotation removal of impurities dehydration,, obtain feldspar and quartzy smart powder and the flotation water of mixing to remove impurity by flotation device;
6) adopt direct flotation to carry out the feldspar dehydration respectively and separate, obtain the smart powder of feldspar and quartzy smart powder and flotation water with quartzy dehydration.
Embodiment 1
Feldspar ore deposit, Laiyang, Shandong is tested its raw ore chemical analysis: K
2O:8.24%, Na
2O:2.50%, Fe
2O
3: mica 0.30%: 1.2%, and build up the feldspar ore deposit of handling 2500 tons on the 1st and select factory.
At first raw ore is carried out ore grinding by ball mill; The mining modified hydraulic classifier of feldspar behind the ore grinding is carried out graded desliming, obtain grinding particle size-200 order and account for 68% feldspar ore deposit; The low intensity magnetic separation that magnetic field intensity is 1000Oe is carried out by the low intensity magnetic separation machine in feldspar ore deposit after the classification, separate the feldspar rough concentrate that obtains the ferromagnetism thing and go into high intensity magnetic separation; Again the feldspar rough concentrate that obtains after the low intensity magnetic separation being carried out magnetic field intensity by intensity magnetic separator is the 8000Oe high intensity magnetic separation, separates the feldspar rough concentrate that obtains weak magnetic thing and go into flotation; The feldspar rough concentrate that obtains behind the high intensity magnetic separation is added floating agent through the segmentation of sizing mixing carry out reverse flotation removal of impurities dehydration, to remove impurity, feldspar that obtains being further purified and quartzy smart powder of mixing and flotation water by flotation device; Described reverse flotation removal step is divided into two sections, and one section is reverse flotation deironing step, floating agent consumption: 300g/t; Two sections are removed mica step, floating agent consumption: 150g/t for reverse flotation; Adopting direct flotation to carry out the feldspar dehydration respectively again separates with quartzy dehydration, obtain the smart powder of feldspar and quartzy smart powder and flotation water, described direct flotation feldspar step, floating agent consumption: 1800g/t, slightly sweep a smart operation through one and obtain the smart powder of feldspar, and the flotation water circulation of reverse flotation and direct flotation gained is reused.
Wherein, described floating agent is carboxylic acids collecting agent and Sulfonates collecting agent, and its metal carboxylate collecting agent general structure is R-C0OH (Na
+Or K
+), described R is C
12Alkyl; Sulfonates collecting agent general structure is RSO
3Na, described R are C
12Alkyl.
Extract the feldspar ore deposit according to the method identical with embodiment 1, different other embodiment of described floating agent are as shown in table 1 below.
Table 1
Through check, the index of the smart powder of feldspar that the foregoing description 1 extracts is: K
2O:10.93%, Na
2O:3.23%, K
2O+Na
2O:14.16%, Fe
2O
3: 0.06%, burn the plate whiteness: 〉=65; The quartzy smart powder index that the foregoing description extracts: SiO
2: Al 98.11%,
2O
3: Fe 0.54%,
2O
3: 0.04%.
Embodiment 9
Feldspar ore deposit, Hengyang, Hunan is tested, and build up the feldspar ore deposit of handling 1200 tons on the 1st and select factory, operational effect is fine, described raw ore chemical analysis: K
2O:6.98%, Na
2O:3.88%, Fe
2O
3: 0.39% mica: tourmaline 1.8%: 1.2%.
At first raw ore is carried out ore grinding by ball mill; The mining modified hydraulic classifier of feldspar behind the ore grinding is carried out graded desliming, obtain mog-200 order and account for 72% feldspar ore deposit; The low intensity magnetic separation that magnetic field intensity is 1500Oe is carried out by the low intensity magnetic separation machine in feldspar ore deposit after the classification, separate the feldspar rough concentrate that obtains the ferromagnetism thing and go into high intensity magnetic separation; Again the feldspar rough concentrate that obtains after the low intensity magnetic separation is carried out the high intensity magnetic separation that magnetic field intensity is 6000Oe by intensity magnetic separator, separate the feldspar rough concentrate that obtains weak magnetic thing and go into flotation; The feldspar rough concentrate that obtains behind the high intensity magnetic separation is added floating agent through the segmentation of sizing mixing carry out reverse flotation removal of impurities dehydration,, obtain feldspar and quartzy smart powder of mixing and flotation water to remove impurity by flotation device; Described reverse flotation removal step is divided at three sections, and one section is reverse flotation deironing step, floating agent consumption: 180g/t; Two sections for reverse flotation removes the mica step, floating agent consumption: 240g/t, three sections for reverse flotation except that tourmaline step, floating agent consumption: 120g/t; Carry out the operation of direct flotation feldspar through the rough concentrate that obtains after the reverse flotation removal step, the floating agent consumption is 1600g/t, slightly sweeps two essences through one, obtains smart powder of feldspar and quartzy smart powder, and with the flotation water circulation recycling of reverse flotation and direct flotation gained.
Wherein, described floating agent is Sulfonates collecting agent and fatty alkyl amine salt collecting agent, Sulfonates collecting agent general structure RSO
3The described R of Na represents C
12Alkyl; Fat alkylamine salt collecting agent general structure is RNH2HX, and wherein R represents C
16Fatty alkyl, X represents halogen.
Extract the feldspar ore deposit according to the method identical with embodiment 9, different other embodiment of described floating agent are as shown in table 2 below.
Table 2
Through check, the index of the smart powder of feldspar that the foregoing description 9 extracts is: K
2O:9.26%, Na
2O:4.90%K
2O+Na
2O:14.16%, Fe
2O
3: 0.04%, burn the plate whiteness: 〉=65; The quartzy smart powder index that the foregoing description extracts: SiO
2: Al 98.22%,
2O
3: Fe 0.47%,
2O
3: 0.02%.
Embodiment 19
Albanian feldspar ore deposit is tested raw ore chemical analysis: K
2O:4.37%, Na
2O:, 3.38%, Fe
2O
3: mica 0.48%: 3.4%.
At first raw ore is carried out ore grinding by ball mill; The mining modified hydraulic classifier of feldspar behind the ore grinding is carried out graded desliming, obtain mog-200 order and account for 70% feldspar ore deposit; The low intensity magnetic separation that magnetic field intensity is 3000Oe is carried out by the low intensity magnetic separation machine in feldspar ore deposit after the classification, separate the feldspar rough concentrate that obtains the ferromagnetism thing and go into high intensity magnetic separation; Again the feldspar rough concentrate that obtains after the low intensity magnetic separation is carried out the high intensity magnetic separation that magnetic field intensity is 12000Oe by intensity magnetic separator, separate the feldspar rough concentrate that obtains weak magnetic thing and go into flotation; The feldspar rough concentrate that obtains behind the high intensity magnetic separation is added floating agent through the segmentation of sizing mixing carry out reverse flotation removal of impurities dehydration,, obtain feldspar and quartzy smart powder of mixing and flotation water to remove impurity by flotation device; Described reverse flotation removal step is divided into two sections, and one section is reverse flotation deironing step, and the floating agent consumption is 300g/t, and two sections for reverse flotation removes the mica step, and the floating agent consumption is 200g/t; The rough concentrate that the reverse flotation removal step obtains enters direct flotation feldspar step, and the floating agent consumption is 1500g/t, sweeps two smart steps through one thick two, obtains smart powder of feldspar and quartzy smart powder.
Wherein, described floating agent is carboxylic acids collecting agent and fat alkylamine salt collecting agent, and carboxylic acids collecting agent general structure is R-C0OH (Na
+Or K
+), described R represents C
18Alkyl; Fat alkylamine salt collecting agent general structure is RNH2HX, and described R represents C
12Fatty alkyl, X represents chlorine (also should be a concrete material) here.
Extract the feldspar ore deposit according to the method identical with embodiment 19, different other embodiment of described floating agent are as shown in table 3 below.Table 3
Through check, the index of the smart powder of the feldspar that the foregoing description extracts is: K
2O:7.47%, Na
2O::5.26%, K
2O+Na
2O:12.73%, Fe
2O
3: 0.09% burns the plate whiteness: 62; The quartzy smart powder index that the foregoing description extracts: SiO
2: Al 98.02%,
2O
3: Fe 0.62%,
2O
3: 0.07%.
Thereby the feldspar ore deposit that the present invention extracts can be by the shirtsleeve operation step, the feldspar ore deposit of removing impurities complicated component, the feldspar concentrate of acquisition high-quality.
The above only is preferred embodiment of the present invention, and is in order to restriction the present invention, within the spirit and principles in the present invention not all, any modification of being done, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (12)
1. the separating and extracting process in the feldspar ore deposit of an impurity component complexity is characterized in that, may further comprise the steps:
1) ore grinding is carried out by ball mill in the feldspar ore deposit of impurity component complexity;
2) the mining modified hydraulic classifier of the feldspar behind the ore grinding is carried out graded desliming;
3) low intensity magnetic separation is carried out by the low intensity magnetic separation machine in the feldspar ore deposit after the classification, separate the feldspar rough concentrate that obtains the ferromagnetism thing and go into high intensity magnetic separation;
4) the feldspar rough concentrate that obtains after the low intensity magnetic separation is carried out high intensity magnetic separation by intensity magnetic separator, separate the feldspar rough concentrate that obtains weak magnetic thing and go into flotation;
5) the feldspar rough concentrate that obtains behind the high intensity magnetic separation is added floating agent through the segmentation of sizing mixing and carry out reverse flotation removal of impurities dehydration,, obtain feldspar and quartzy smart powder and the flotation water of mixing to remove impurity by flotation device.
2. the separating and extracting process in the feldspar ore deposit of impurity component complexity according to claim 1 is characterized in that, the magnetic field intensity of the low intensity magnetic separation described in the described step 3) is 1000Oe～3000Oe.
3. the separating and extracting process in the feldspar ore deposit of impurity component complexity according to claim 1 is characterized in that, the magnetic field intensity of the high intensity magnetic separation described in the described step 4) is 8000Oe～12000Oe.
4. the separating and extracting process in the feldspar ore deposit of impurity component complexity according to claim 1 is characterized in that, the reverse flotation in the described step 5) comprises that reverse flotation deironing step and reverse flotation remove the mica step.
5. the separating and extracting process in the feldspar ore deposit of impurity component complexity according to claim 4, it is characterized in that, the floating agent consumption is 50～500g/t in the described reverse flotation deironing step, and described reverse flotation is 50～300g/t except that floating agent consumption in the mica step.
6. the separating and extracting process in the feldspar ore deposit of impurity component complexity according to claim 5 is characterized in that, described reverse flotation also has a reverse flotation to remove the tourmaline step after removing the mica step.
7. the separating and extracting process in the feldspar ore deposit of impurity component complexity according to claim 6 is characterized in that, described reverse flotation is 100～200g/t except that floating agent consumption in the tourmaline step.
8. according to the separating and extracting process in the feldspar ore deposit of each described impurity component complexity of claim 1 to 4, it is characterized in that, described floating agent is a kind of or any several mixture in carboxylic acids collecting agent, fatty alkyl amine salt or the Sulfonates collecting agent, the structural formula of wherein said carboxylic acids collecting agent is represented by following general formula (I), the structural formula of described fatty alkyl amine salt is by following general formula (II) expression, and the structural formula of described Sulfonates collecting agent is represented by following general formula (III):
R-C0OH (Na
+Or K
+) (I)
Wherein, R represents C
8-C
20Alkyl;
RNH2·HX （Ⅱ）；
Wherein R represents C
2-C
20,Fatty alkyl, X represents halogen or acid group;
RSO
3Na?（Ⅲ）
Wherein, R represents C
8-C
20Alkyl.
9. the separating and extracting process in the feldspar ore deposit of impurity component complexity according to claim 8 is characterized in that described X represents chlorine.
10. according to the separating and extracting process in the feldspar ore deposit of each described impurity component complexity of claim 1 to 4, it is characterized in that the flotation water circulation use of the reverse flotation dehydration back gained in the described step 5).
11. separating and extracting process according to the feldspar ore deposit of each described impurity component complexity of claim 1 to 4, it is characterized in that, also comprise a direct flotation step after the described step 5), it adopts direct flotation to carry out feldspar dehydration respectively and quartzy dehydration separates, the feldspar essence powder and quartzy smart powder and the flotation water that obtain being further purified.
12. the separating and extracting process according to the feldspar ore deposit of each described impurity component complexity of claim 1 to 4 is characterized in that, the flotation water circulation use of described direct flotation dehydration back gained.
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| CN102357401B (en) * | 2011-07-28 | 2013-01-23 | 内蒙古科技大学 | Beneficiation method for separating potash feldspar ore concentrate and iron ore concentrate from Baiyunebo potassium-enriched slate |
| CN102728478A (en) * | 2012-07-07 | 2012-10-17 | 蚌埠玻璃工业设计研究院 | Beneficiation method for extracting feldspar and quartz from granite |
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| CN105057088A (en) * | 2015-08-10 | 2015-11-18 | 山东华晟投资有限公司 | Method for recycling quartz and feldspar mixtures from gold flotation tailings |
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| CN108940575A (en) * | 2018-08-30 | 2018-12-07 | 贺州市骏鑫矿产品有限责任公司 | A kind of method that feldspar in powder purification is brightened |
| CN108706601A (en) * | 2018-08-31 | 2018-10-26 | 贺州市骏鑫矿产品有限责任公司 | A kind of preparation method of feldspar in powder |
| CN109319799A (en) * | 2018-11-21 | 2019-02-12 | 衡阳县天宇陶瓷矿业有限公司 | A kind of the reinforcing method of reduction treatment and its feldspar fine powder of poor quality feldspar ore |
| CN109569872A (en) * | 2018-11-21 | 2019-04-05 | 衡阳县天宇陶瓷矿业有限公司 | A kind of method and its feldspar fine powder being classified using hydrometer method to feldspar iron-removing |
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| CN112371329A (en) * | 2020-10-23 | 2021-02-19 | 王庆乐 | Superconducting magnetic separation process applied to potassium feldspar production |
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