CN102357402B - Method for separating potassium feldspar ore concentrate and iron ore concentrate from Baiyunebo potassium rich slate - Google Patents
Method for separating potassium feldspar ore concentrate and iron ore concentrate from Baiyunebo potassium rich slate Download PDFInfo
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Abstract
The invention relates to a method for separating potassium feldspar ore concentrate and iron ore concentrate from Baiyunebo potassium rich slate, and belongs to the field of ore dressing. The method comprises the following steps of: reselection: performing table reselection on the potassium rich slate, over 90 percent of which has the granularity of 200 meshes, and separating out heavy minerals and light minerals; strong magnetic separation: performing strong magnetic separation on the light minerals obtained by reselection to obtain magnetic minerals and nonmagnetic minerals; weak magnetic separation: merging the heavy minerals obtained by reselection and the magnetic minerals obtained by strong magnetic separation, performing weak magnetic separation to obtain the iron ore concentrate; and flotation: performing reverse flotation and positive flotation to obtain the potassium feldspar ore concentrate. The method is scientific and reasonable, and the potassium feldspar ore concentrate with the purity of 95 percent and the yield of 85 percent and the iron ore concentrate with the full iron grade of over 65 percent and the yield of more than 95 percent can be obtained.
Description
Technical field
The present invention relates to a kind of method of Bayan Obo k-rich slate sorting potassic feldspar concentrate and iron ore concentrate, belong to the ore-dressing technique technical field.
Background technology
Bayan Obo deposit is rare multielement intergrowth deposit in the world, in the past because technical merit is limit, only to have utilized iron mineral and rare-earth mineral wherein, and other a large amount of valuable minerals as: fluorite, apatite, barite, potassic feldspar, niobium minerals thing etc. all are not effectively utilized.Wherein compose be stored in Bayan Obo master, the upper dish of Dong Kuang its reserves of k-rich slate more than 300,000,000 tons, the average grade of potassium oxide is more than 11%, the average grade of aluminium oxide is more than 16%, vignite article positions is also more than 4.5%.But because technology water product are limit, never utilized, still abandoned as hillock at present.
Secondly in k-rich slate, topmost mineral are potassic feldspar, are quartz, magnetic iron ore, mica etc., and wherein potassium and aluminium mainly are distributed in potassic feldspar, and iron is mainly that the form with magnetic iron ore exists.Although the useful element in k-rich slate is a lot, because the relative amount of various useful elements is not very high, therefore, directly solely extracts a certain element economically from k-rich slate, and be all impracticable on the angle of comprehensive utilization of resources.Also someone did the research work of Bayan Obo k-rich slate in the past, and the technique of wherein utilizing the Bayan Obo k-rich slate to prepare aluminium oxide, potash has also been carried out half industry and enlarged experiment, but did not have so far industry to go into operation.This illustrates that on the one hand k-rich slate can develop really, illustrate also that on the other hand it is impracticable wanting directly to prepare aluminium oxide, potash etc. from k-rich slate, must take the method for fine fodder, namely adopt the means of ore dressing that the valuable mineral in k-rich slate is separated.
The present invention considers from above several aspects exactly, take the Bayan Obo k-rich slate as raw material, adopt that the means of ore dressing have obtained that purity reaches 95%, the rate of recovery reaches 85% potassic feldspar concentrate and full iron grade more than 65%, the rate of recovery is greater than 95% iron ore concentrate, thereby for follow-up industrial production provides qualified raw mineral materials, also make the Bayan Obo k-rich slate that wide market prospects have been arranged.
Summary of the invention
A kind of method that the purpose of this invention is to provide Bayan Obo k-rich slate sorting potassic feldspar concentrate and iron ore concentrate, the method can make the Bayan Obo k-rich slate be utilized rationally and effectively, technique is simple, production cost is low, can access potassic feldspar concentrate and the iron ore concentrate of high-grade and high-recovery, realize the comprehensive utilization of resource.
Purpose of the present invention is realized by following processing step.
(1) gravity treatment: the k-rich slate water that granularity accounts for more than 90% for-200 orders is sized mixing, and the ore pulp mass concentration is 5～20%, and 5～35 ℃ of water temperatures adopt shaking table to carry out gravity treatment, get heavy mineral and light mineral;
(2) high intensity magnetic separation: the light mineral that shaking table is elected carries out high intensity magnetic separation, and magnetic field intensity is 1.0～1.2T, gets magnetic mineral and non magnetic ore;
(3) low intensity magnetic separation: carry out low intensity magnetic separation after the magnetic mineral merging with heavy mineral in step (1) and step (2), one roughing, primary cleaning and once purging selection are adopted in low intensity magnetic separation, return after wherein cleaner tailings and scavenger concentrate merge and roughly select, the magnetic field intensity of roughly selecting is 0.2～0.26T, selected and magnetic field intensity that scan is 0.17～0.2T, get iron ore concentrate and scan mine tailing, iron ore concentrate is final products;
(4) reverse flotation: the non magnetic ore that step (2) is selected carries out reverse flotation, adopt one roughing, primary cleaning and once purging selection, cleaner tailings and scavenger concentrate are proceeded to roughly select after turning back to initial separatory cell, the medicament that reverse flotation is used: inhibitor is waterglass, collecting agent is fatty acid collecting agent, foaming agent is No. two oil, roughly select the medicament addition by weight: inhibitor 0.5～2.0Kg/t, collecting agent 1.5～4.5Kg/t, foaming agent 0.005～0.02Kg/t, selected and scan the medicament addition by weight: inhibitor 0.5～1.5Kg/t, collecting agent 1.0～3.0Kg/t, foaming agent 0～0.015Kg/t, in the reverse flotation process, the mass concentration of ore pulp is 30%～50%, pH values of pulp is 8～10, the temperature of ore pulp is 18～35 ℃, the foam that reverse flotation obtains is mine tailing, ore pulp is the concentrate that is rich in potassic feldspar,
(5) direct flotation: the concentrate that is rich in potassic feldspar in step (4) is carried out direct flotation, adopt one roughing, primary cleaning and once purging selection, the cleaner tailings that obtains and scavenger concentrate turn back to initial separatory cell and proceed to roughly select, the medicament that direct flotation adopts: adjusting agent is sulfuric acid or hydrofluoric acid, collecting agent is amine collector, No. two oil are foaming agent, roughly select the medicament addition by weight: collecting agent 1.5～4.5Kg/t, foaming agent 0.005～0.02Kg/t, selected and scan the medicament addition by weight: collecting agent 1.0～3.0Kg/t, foaming agent 0.005～0.015Kg/t, in the direct flotation process, the mass concentration of ore pulp is 30%～50%, slurry pH is 2～3, the temperature of ore pulp is 18～35 ℃, the froth pulp that obtains is final potassic feldspar concentrate.
In described k-rich slate raw material, potassic feldspar purity is 50～70%, the magnetic iron ore grade is 3.5～8%.
Described fatty acid collecting agent is a kind of in oleic acid, tall oil, aphthenic acids or oxidized paraffin wax.
Described amine collector is a kind of in lauryl amine, octadecylamine, mixed amine or trialkylamine.
Advantage of the present invention:
1, take the Bayan Obo k-rich slate as raw material, invented a kind of combined mineral dressing technology that gravity treatment-magnetic separation-flotation combines for preparing potassic feldspar concentrate and iron ore concentrate.Obtain that purity reaches 95%, the rate of recovery reaches 85% potassic feldspar concentrate and full iron grade greater than 65%, the rate of recovery is greater than 95% iron ore concentrate.
2, high intensity magnetic separation is that the light mineral after gravity treatment is carried out, and low intensity magnetic separation is that the magnetic mineral that heavy mineral that gravity treatment is selected and high intensity magnetic separation are selected carries out.Can reduce the plant equipment of magnetic separation like this, and select the iron ore concentrate of high-quality.
3, designed the floatation process that reverse flotation combines with direct flotation, scientific and reasonable regime of agent has been proposed, particularly adopt inorganic acid effectively to improve the purity of potassic feldspar as adjusting agent in direct flotation, and because direct flotation must add inorganic acid, and the pH value will be controlled at below 3, therefore be located at afterbody, be conducive to like this stability of flotation and the comprehensive regulation of waste water.
Description of drawings
Fig. 1 is process flow diagram of the present invention.
The specific embodiment
Further illustrate by the following examples technical scheme of the present invention, but content of the present invention not only is confined to the following examples.
Embodiment 1
A kind of granularity is utilized process of the present invention for-200 orders account for more than 90%, potassic feldspar content is 67.65%, the Bayan Obo k-rich slate of magnetic iron ore grade 6.1%, has carried out following operation:
(1) gravity treatment: water is sized mixing this raw material, and making the ore pulp weight concentration is 10%, 10 ℃ of water temperatures, and the method for employing tabling obtains heavy mineral and light mineral.
(2) high intensity magnetic separation: the light mineral that gravity treatment obtains obtains magnetic mineral and non magnetic ore through high intensity magnetic separation, and magnetic field intensity is 1.1T.
(3) low intensity magnetic separation: the magnetic mineral that the heavy mineral that shaking table is elected and high intensity magnetic separation are elected merges, and carries out low intensity magnetic separation; The flow process of one roughing, primary cleaning and once purging selection is adopted in low intensity magnetic separation; At first roughly select, the magnetic field intensity of roughly selecting is 0.22T, must roughly select concentrate and rougher tailings, carry out primary cleaning to roughly selecting concentrate, selected magnetic field intensity is 0.18T, obtain selected concentrate and cleaner tailings, selected concentrate is iron ore concentrate, rougher tailings is carried out once purging selection, scanning magnetic field intensity is 0.18T, obtain scavenger concentrate and scan mine tailing, wherein cleaner tailings and scavenger concentrate return to rear merging and roughly select, and finally obtain grade and be 65.3%, the rate of recovery is 95.8% iron ore concentrate and scans mine tailing.
(4) reverse flotation: adjust the pulp density of the non magnetic ore of selecting in the high intensity magnetic separation step, the ore pulp after adjusting is sent into flotation unit, carry out reverse flotation, reverse flotation adopts the flow process of one roughing, primary cleaning and once purging selection; At first roughly select, must roughly select concentrate and rougher tailings, carry out primary cleaning to roughly selecting concentrate, obtain selected concentrate and cleaner tailings, rougher tailings is carried out once purging selection, obtain scavenger concentrate and scan mine tailing, cleaner tailings and scavenger concentrate being returned to rear merging roughly select, the inhibitor of reverse flotation is that waterglass, collecting agent are that oleic acid, foaming agent are No. two oil; In whole reverse flotation process, the pH value of ore pulp is 9.5, and the mass concentration of ore pulp is 45%, and the temperature of ore pulp is 25 ℃.Roughly select the medicament addition by weight: waterglass 2.0Kg/t, oleic acid 3.5Kg/t, No. two oily 0.015Kg/t, selected medicament addition is by weight: waterglass 1.5Kg/t, oleic acid 2.5Kg/t, No. two oily 0.005Kg/t, scan the medicament addition by weight: waterglass 0.5Kg/t, oleic acid 2.0Kg/t, No. two oily 0.010Kg/t.Obtain easy-floating gangue and the concentrate that is rich in potassic feldspar after reverse flotation.
(5) direct flotation: the concentrate that is rich in potassic feldspar that reverse flotation obtains is sent into flotation unit and is carried out direct flotation after sizing mixing, and direct flotation adopts the flow process of one roughing, primary cleaning and once purging selection; At first roughly select, must roughly select concentrate and rougher tailings, carry out primary cleaning to roughly selecting concentrate, obtain selected concentrate and cleaner tailings, rougher tailings is carried out once purging selection, obtain scavenger concentrate and scan mine tailing, cleaner tailings and scavenger concentrate are turned back to initial separatory cell merge and roughly select, in whole direct flotation process, the pH value of ore pulp is 2.5, the mass concentration of ore pulp is 35%, and the temperature of ore pulp is 22 ℃; The adjusting agent of reverse flotation is hydrofluoric acid, and collecting agent is lauryl amine, and foaming agent is No. two oil; Roughly select the medicament addition by weight: lauryl amine 4.0Kg/t, No. two oily 0.01Kg/t, selected medicament addition is by weight: lauryl amine 3.0Kg/t, No. two oily 0.005Kg/t, scan the medicament addition by weight: lauryl amine 3.0Kg/t, No. two oily 0.005Kg/t.Be 98.2% through obtaining purity after direct flotation, the rate of recovery is 86.4% potassic feldspar concentrate, in flotation cell, mine tailing is abandoned it.
Embodiment 2
A kind of granularity is utilized process of the present invention for-200 orders account for more than 90%, potassic feldspar content is 64.25%, the Bayan Obo k-rich slate of magnetic iron ore grade 6.4%, has carried out following operation:
(1) gravity treatment: water is sized mixing this raw material, and 8 ℃ of water temperatures, ore pulp weight concentration are 10%, adopts the method for tabling, obtains heavy mineral and light mineral.
(2) high intensity magnetic separation: the light mineral that gravity treatment obtains obtains magnetic mineral and non magnetic ore through high intensity magnetic separation, and magnetic field intensity is 1.2T.
(3) low intensity magnetic separation: the magnetic mineral that the heavy mineral that shaking table is elected and high intensity magnetic separation are elected merges, and carries out low intensity magnetic separation; The flow process of one roughing, primary cleaning and once purging selection is adopted in low intensity magnetic separation, and the magnetic field intensity of roughly selecting is 0.25T, and selected and magnetic field intensity that scan is 0.17T; At first roughly select, must roughly select concentrate and rougher tailings, carry out primary cleaning to roughly selecting concentrate, obtain selected concentrate and cleaner tailings, selected concentrate is iron ore concentrate, and rougher tailings is carried out once purging selection, obtains scavenger concentrate and scans mine tailing, wherein cleaner tailings and scavenger concentrate return to rear merging and roughly select, and finally obtaining grade is that 66.8% rate of recovery is 95.2% iron ore concentrate and scans mine tailing.
(4) reverse flotation: the pulp density of the non magnetic ore that the adjustment high intensity magnetic separation is selected, this ore pulp is sent into flotation unit, carry out reverse flotation, reverse flotation adopts the flow process of one roughing, primary cleaning and once purging selection; At first roughly select, must roughly select concentrate and rougher tailings, carry out primary cleaning to roughly selecting concentrate, obtain selected concentrate and cleaner tailings, rougher tailings is carried out once purging selection, obtain scavenger concentrate and scan mine tailing, cleaner tailings and scavenger concentrate are turned back to initial separatory cell to be merged and roughly selects, the inhibitor of reverse flotation is waterglass, and collecting agent is oxidized paraffin wax soap, and foaming agent is No. two oil; In whole reverse flotation process, the pH value of ore pulp is 9.8, and the mass concentration of ore pulp is 49%, and the temperature of ore pulp is 35 ℃.Roughly select the medicament addition by weight: waterglass 1.5Kg/t, oxidized paraffin wax 3.5Kg/t, No. two oily 0.010Kg/t, selected medicament addition by weight: waterglass 1.0Kg/t, oxidized paraffin wax 2.0Kg/t, No. two oily 0.005Kg/t; Scan the medicament addition by weight: waterglass 1.0Kg/t, oxidized paraffin wax 2.0Kg/t, No. two oily 0.005Kg/t.Obtain easy-floating gangue and the concentrate that is rich in potassic feldspar after reverse flotation.
(5) direct flotation: the concentrate that is rich in potassic feldspar that reverse flotation obtains is sent into flotation unit and is carried out direct flotation after sizing mixing.Direct flotation adopts the flow process of one roughing, primary cleaning and once purging selection, at first roughly select, must roughly select concentrate and rougher tailings, carry out primary cleaning to roughly selecting concentrate, obtain selected concentrate and cleaner tailings, rougher tailings is carried out once purging selection, obtain scavenger concentrate and scan mine tailing, cleaner tailings and scavenger concentrate are turned back to initial separatory cell merge and roughly select, in whole direct flotation process, the pH value of ore pulp is 2.3, and the mass concentration of ore pulp is 42%, and the temperature of ore pulp is 22 ℃; The adjusting agent of reverse flotation is hydrofluoric acid, and collecting agent is trialkylamine, and foaming agent is No. two oil; Roughly select the medicament addition by weight: trialkylamine 3.5Kg/t, No. two oily 0.01Kg/t, selected medicament addition is by weight: trialkylamine 2.5Kg/t, No. two oily 0.005Kg/t, scan the medicament addition by weight: trialkylamine 2.5Kg/t, No. two oily 0.005Kg/t.Be 96.4% through obtaining purity after direct flotation, the rate of recovery is 88.4% potassic feldspar concentrate, in flotation cell, mine tailing is abandoned it.
Embodiment 3
A kind of granularity is utilized process of the present invention for-200 orders account for more than 90%, potassic feldspar content is 65.82%, the Bayan Obo k-rich slate of magnetic iron ore grade 6.8%, has carried out following operation:
(1) gravity treatment: water is sized mixing this raw material, and 35 ℃ of water temperatures, ore pulp weight concentration are 20%, adopts the method for tabling, obtains heavy mineral and light mineral.
(2) high intensity magnetic separation: the light mineral that gravity treatment obtains obtains magnetic mineral and non magnetic ore through high intensity magnetic separation, and magnetic field intensity is 1.0T.
(3) low intensity magnetic separation: the magnetic mineral that the heavy mineral that shaking table is elected and high intensity magnetic separation are elected merges, and carries out low intensity magnetic separation; The flow process of one roughing, primary cleaning and once purging selection is adopted in low intensity magnetic separation, and the magnetic field intensity of roughly selecting is 0.26T, and selected and magnetic field intensity that scan is 0.17T; At first roughly select, must roughly select concentrate and rougher tailings, carry out primary cleaning to roughly selecting concentrate, obtain selected concentrate and cleaner tailings, selected concentrate is iron ore concentrate, and rougher tailings is carried out once purging selection, obtains scavenger concentrate and scans mine tailing, wherein cleaner tailings and scavenger concentrate return to rear merging and roughly select, and finally obtain grade and be 66.2%, the rate of recovery is 96.1% iron ore concentrate and scans mine tailing.
(4) reverse flotation: the pulp density of the non magnetic ore that the adjustment high intensity magnetic separation is selected, this ore pulp is sent into flotation unit, carry out reverse flotation, reverse flotation adopts the flow process of one roughing, primary cleaning and once purging selection; At first roughly select, must roughly select concentrate and rougher tailings, carry out primary cleaning to roughly selecting concentrate, obtain selected concentrate and cleaner tailings, rougher tailings is carried out once purging selection, obtain scavenger concentrate and scan mine tailing, cleaner tailings and scavenger concentrate are turned back to initial separatory cell to be merged and roughly selects, the inhibitor of reverse flotation is waterglass, and collecting agent is aphthenic acids, and foaming agent is No. two oil; In whole reverse flotation process, the pH value of ore pulp is 8.0, and the mass concentration of ore pulp is 40%, and the temperature of ore pulp is 18 ℃.Roughly select the medicament addition by weight: waterglass 1.5Kg/t, aphthenic acids 3.0Kg/t, No. two oily 0.015Kg/t, selected medicament addition is by weight: waterglass 1.0Kg/t, aphthenic acids 2.5Kg/t, No. two oily 0.005Kg/t, scan the medicament addition by weight: waterglass 1.0Kg/t, aphthenic acids 2.5Kg/t, No. two oily 0.005Kg/t.Obtain easy-floating gangue and the concentrate that is rich in potassic feldspar after reverse flotation.
(5) direct flotation: the concentrate that is rich in potassic feldspar that reverse flotation obtains is sent into flotation unit and is carried out direct flotation after sizing mixing.Direct flotation adopts the flow process of one roughing, primary cleaning and once purging selection, at first roughly select, must roughly select concentrate and rougher tailings, carry out primary cleaning to roughly selecting concentrate, obtain selected concentrate and cleaner tailings, rougher tailings is carried out once purging selection, obtain scavenger concentrate and scan mine tailing, cleaner tailings and scavenger concentrate are turned back to initial separatory cell merge and roughly select, in whole direct flotation process, the pH value of ore pulp is 2.5, and the mass concentration of ore pulp is 45%, and the temperature of ore pulp is 22 ℃; The adjusting agent of reverse flotation is sulfuric acid, and collecting agent is mixed amine, and foaming agent is No. two oil; Roughly select the medicament addition by weight: mixed amine 3.5Kg/t, No. two oily 0.01Kg/t, selected medicament addition is by weight: mixed amine 3.0Kg/t, No. two oily 0.005Kg/t, scan the medicament addition by weight: mixed amine 3.0Kg/t, No. two oily 0.005Kg/t.Be 97.8% through obtaining purity after direct flotation, the rate of recovery is 85.1% potassic feldspar concentrate, in flotation cell, mine tailing is abandoned it.
Embodiment 4
A kind of granularity is utilized process of the present invention for-200 orders account for more than 90%, potassic feldspar content is 63.20%, the Bayan Obo k-rich slate of magnetic iron ore grade 4.9%, has carried out following operation:
(1) gravity treatment: water is sized mixing this raw material, and 5 ℃ of water temperatures, ore pulp weight concentration are 5%, adopts the method for tabling, obtains heavy mineral and light mineral.
(2) high intensity magnetic separation: the light mineral that gravity treatment obtains obtains magnetic mineral and non magnetic ore through high intensity magnetic separation, and magnetic field intensity is 1.2T.
(3) low intensity magnetic separation: the magnetic mineral that the heavy mineral that shaking table is elected and high intensity magnetic separation are elected merges, and carries out low intensity magnetic separation; The flow process of one roughing, primary cleaning and once purging selection is adopted in low intensity magnetic separation, and the magnetic field intensity of roughly selecting is 0.26T, and selected and magnetic field intensity that scan is 0.19T; At first roughly select, must roughly select concentrate and rougher tailings, carry out primary cleaning to roughly selecting concentrate, obtain selected concentrate and cleaner tailings, selected concentrate is iron ore concentrate, and rougher tailings is carried out once purging selection, obtains scavenger concentrate and scans mine tailing, wherein cleaner tailings and scavenger concentrate return to rear merging and roughly select, and finally obtain grade and be 65.6%, the rate of recovery is 97.2% iron ore concentrate and scans mine tailing.
(4) reverse flotation: the pulp density of the non magnetic ore that the adjustment high intensity magnetic separation is selected, this ore pulp is sent into flotation unit, carry out reverse flotation, reverse flotation adopts the flow process of one roughing, primary cleaning and once purging selection; At first roughly select, must roughly select concentrate and rougher tailings, carry out primary cleaning to roughly selecting concentrate, obtain selected concentrate and cleaner tailings, rougher tailings is carried out once purging selection, obtain scavenger concentrate and scan mine tailing, cleaner tailings and scavenger concentrate are turned back to initial separatory cell to be merged and roughly selects, the inhibitor of reverse flotation is waterglass, and collecting agent is the aphthenic acids soda soap, and foaming agent is No. two oil; In whole reverse flotation process, the pH value of ore pulp is 9.5, and the mass concentration of ore pulp is 45%, and the temperature of ore pulp is 20 ℃.Roughly select the medicament addition by weight: waterglass 2.0Kg/t, aphthenic acids 4.5Kg/t, No. two oily 0.015Kg/t, selected medicament addition is by weight: waterglass 1.5Kg/t, aphthenic acids 3.0Kg/t, No. two oily 0.005Kg/t, scan the medicament addition by weight: waterglass 1.0Kg/t, aphthenic acids 1.0Kg/t, No. two oily 0.005Kg/t.Through obtaining easy-floating gangue and the concentrate that is rich in potassic feldspar after reverse flotation.
(5) direct flotation: the concentrate that is rich in potassic feldspar that reverse flotation obtains is sent into flotation unit and is carried out direct flotation after sizing mixing.Direct flotation adopts the flow process of one roughing, primary cleaning and once purging selection, at first roughly select, must roughly select concentrate and rougher tailings, carry out primary cleaning to roughly selecting concentrate, obtain selected concentrate and cleaner tailings, rougher tailings is carried out once purging selection, obtain scavenger concentrate and scan mine tailing, cleaner tailings and scavenger concentrate are turned back to initial separatory cell merge and roughly select, in whole direct flotation process, the pH value of ore pulp is 2.5, and the mass concentration of ore pulp is 45%, and the temperature of ore pulp is 22 ℃; The adjusting agent of reverse flotation is sulfuric acid, and collecting agent is octadecylamine, and foaming agent is No. two oil; Roughly select the medicament addition by weight: octadecylamine 4.0Kg/t, No. two oily 0.01Kg/t, selected medicament addition is by weight: octadecylamine 3.0Kg/t, No. two oily 0.005Kg/t, scan the medicament addition by weight: octadecylamine 2.0Kg/t, No. two oily 0.015Kg/t.Be 96.5% through obtaining purity after direct flotation, the rate of recovery is 89.7% potassic feldspar concentrate, in flotation cell, mine tailing is abandoned it.
Embodiment 5
A kind of granularity is utilized process of the present invention for-200 orders account for more than 90%, potassic feldspar content is 66.30%, the Bayan Obo k-rich slate of magnetic iron ore grade 5.9%, has carried out following operation:
(1) gravity treatment: water is sized mixing this raw material, and 25 ℃ of water temperatures, ore pulp weight concentration are 10%, adopts the method for tabling, obtains heavy mineral and light mineral.
(2) high intensity magnetic separation: the light mineral that gravity treatment obtains obtains magnetic mineral and non magnetic ore through high intensity magnetic separation, and magnetic field intensity is 1.0T.
(3) low intensity magnetic separation: the magnetic mineral that the heavy mineral that shaking table is elected and high intensity magnetic separation are elected merges, and carries out low intensity magnetic separation; The flow process of one roughing, primary cleaning and once purging selection is adopted in low intensity magnetic separation, and the magnetic field intensity of roughly selecting is 0.25T, and selected and magnetic field intensity that scan is 0.18T; At first roughly select, must roughly select concentrate and rougher tailings, carry out primary cleaning to roughly selecting concentrate, obtain selected concentrate and cleaner tailings, selected concentrate is iron ore concentrate, and rougher tailings is carried out once purging selection, obtains scavenger concentrate and scans mine tailing, wherein cleaner tailings and scavenger concentrate return to rear merging and roughly select, and finally obtain grade and be 65.8%, the rate of recovery is 95.8% iron ore concentrate and scans mine tailing.
(4) reverse flotation: the pulp density of the non magnetic ore that the adjustment high intensity magnetic separation is selected, this ore pulp is sent into flotation unit, carry out reverse flotation, reverse flotation adopts the flow process of one roughing, primary cleaning and once purging selection; At first roughly select, must roughly select concentrate and rougher tailings, carry out primary cleaning to roughly selecting concentrate, obtain selected concentrate and cleaner tailings, rougher tailings is carried out once purging selection, obtain scavenger concentrate and scan mine tailing, turning back to the initial separatory cell merging roughly selects, the inhibitor of reverse flotation is waterglass, and collecting agent is tall oil, and foaming agent is No. two oil; In whole reverse flotation process, the pH value of ore pulp is 9.2, and the mass concentration of ore pulp is 43%, and the temperature of ore pulp is 23 ℃.Roughly select the medicament addition by weight: waterglass 2.0Kg/t, tall oil 4.0Kg/t, No. two oily 0.010Kg/t, selected and scan the medicament addition by weight: waterglass 1.5Kg/t, tall oil 2.0Kg/t, No. two oily 0.005Kg/t.Through obtaining easy-floating gangue and the concentrate that is rich in potassic feldspar after reverse flotation.
(5) direct flotation: the concentrate that is rich in potassic feldspar that reverse flotation obtains is sent into flotation unit and is carried out direct flotation after sizing mixing.Direct flotation adopts the flow process of one roughing, primary cleaning and once purging selection, at first roughly select, must roughly select concentrate and rougher tailings, carry out primary cleaning to roughly selecting concentrate, obtain selected concentrate and cleaner tailings, rougher tailings is carried out once purging selection, obtain scavenger concentrate and scan mine tailing, cleaner tailings and scavenger concentrate are turned back to initial separatory cell merge and roughly select, in whole direct flotation process, the pH value of ore pulp is 2.5, and the mass concentration of ore pulp is 40%, and the temperature of ore pulp is 20 ℃; The adjusting agent of reverse flotation is sulfuric acid, and collecting agent is mixed amine, and foaming agent is No. two oil; Roughly select the medicament addition by weight: mixed amine 4.5Kg/t, No. two oily 0.01Kg/t, selected medicament addition is by weight: mixed amine 2.5Kg/t, No. two oily 0.015Kg/t, scan the medicament addition by weight: mixed amine 3.0Kg/t, No. two oily 0.008Kg/t.Be 97.2% through obtaining purity after direct flotation, the rate of recovery is 87.4% potassic feldspar concentrate, in flotation cell, mine tailing is abandoned it.
Claims (4)
1. the method for Bayan Obo k-rich slate sorting potassic feldspar concentrate and iron ore concentrate, is characterized in that, method step is as follows:
(1) gravity treatment: the k-rich slate water that granularity accounts for more than 90% for-200 orders is sized mixing, and the ore pulp mass concentration is 5～20%, and 5～35 ℃ of water temperatures adopt shaking table to carry out gravity treatment, get heavy mineral and light mineral;
(2) high intensity magnetic separation: the light mineral that shaking table is elected carries out high intensity magnetic separation, and magnetic field intensity is 1.0～1.2T, gets magnetic mineral and non magnetic ore;
(3) low intensity magnetic separation: carry out low intensity magnetic separation after the magnetic mineral merging with heavy mineral in step (1) and step (2), one roughing, primary cleaning and once purging selection are adopted in low intensity magnetic separation, return after wherein cleaner tailings and scavenger concentrate merge and roughly select, the magnetic field intensity of roughly selecting is 0.2～0.26T, selected and magnetic field intensity that scan is 0.17～0.2T, get iron ore concentrate and scan mine tailing, iron ore concentrate is final products;
(4) reverse flotation: the non magnetic ore that step (2) is selected carries out reverse flotation, adopt one roughing, primary cleaning and once purging selection, cleaner tailings and scavenger concentrate are proceeded to roughly select after turning back to initial separatory cell, the medicament that reverse flotation is used: inhibitor is waterglass, collecting agent is fatty acid collecting agent, foaming agent is No. two oil, roughly select the medicament addition by weight: inhibitor 0.5～2.0Kg/t, collecting agent 1.5～4.5Kg/t, foaming agent 0.005～0.02Kg/t, selected and scan the medicament addition by weight: inhibitor 0.5～1.5Kg/t, collecting agent 1.0～3.0Kg/t, foaming agent 0～0.015Kg/t, in the reverse flotation process, the mass concentration of ore pulp is 30%～50%, pH values of pulp is 8～10, the temperature of ore pulp is 18～35 ℃, the foam that reverse flotation obtains is mine tailing, ore pulp is the concentrate that is rich in potassic feldspar,
(5) direct flotation: the concentrate that is rich in potassic feldspar in step (4) is carried out direct flotation, adopt one roughing, primary cleaning and once purging selection, the cleaner tailings that obtains and scavenger concentrate turn back to initial separatory cell and proceed to roughly select, the medicament that direct flotation adopts: adjusting agent is sulfuric acid or hydrofluoric acid, collecting agent is amine collector, No. two oil are foaming agent, roughly select the medicament addition by weight: collecting agent 1.5～4.5Kg/t, foaming agent 0.005～0.02Kg/t, selected and scan the medicament addition by weight: collecting agent 1.0～3.0Kg/t, foaming agent 0.005～0.015Kg/t, in the direct flotation process, the mass concentration of ore pulp is 30%～50%, slurry pH is 2～3, the temperature of ore pulp is 18～35 ℃, the froth pulp that obtains is final potassic feldspar concentrate.
2. the method for Bayan Obo k-rich slate sorting potassic feldspar concentrate according to claim 1 and iron ore concentrate is characterized in that: in described k-rich slate raw material, potassic feldspar purity is 50～70%, the magnetic iron ore grade is 3.5～8%.
3. the method for Bayan Obo k-rich slate sorting potassic feldspar concentrate according to claim 1 and iron ore concentrate is characterized in that: described fatty acid collecting agent is a kind of in oleic acid, tall oil, aphthenic acids or oxidized paraffin wax.
4. the method for Bayan Obo k-rich slate sorting potassic feldspar concentrate according to claim 1 and iron ore concentrate is characterized in that: described amine collector is a kind of in lauryl amine, octadecylamine, mixed amine or trialkylamine.
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| CN106378264B (en) * | 2016-12-07 | 2018-11-27 | 广西大学 | A kind of preparation method of potassium feldspar collecting agent |
| CN108339658B (en) * | 2018-02-02 | 2020-09-29 | 包头钢铁（集团）有限责任公司 | Process method for recovering sulfur concentrate from potassium-rich slate |
| CN108339672B (en) * | 2018-02-02 | 2020-12-29 | 包头钢铁（集团）有限责任公司 | Process method for recovering potassium feldspar in potassium-rich slate |
| CN109052422B (en) * | 2018-08-30 | 2020-06-30 | 贺州市骏鑫矿产品有限责任公司 | Purification process of potassium feldspar sand powder |
| 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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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1149510A (en) * | 1996-08-01 | 1997-05-14 | 冶金工业部马鞍山矿山研究院 | Feldspar iron-removing ore dressing technology |
| CN1184076A (en) * | 1996-11-29 | 1998-06-10 | 中国地质大学（北京） | Technology process of producing zeolite molecular-sieve with potassium feldspar |
| WO2000000443A2 (en) * | 1998-06-26 | 2000-01-06 | Pueblo Process, Llc | Flotation process for separating silica from feldspar to form a feed material for making glass |
| CN101121151A (en) * | 2007-08-03 | 2008-02-13 | 中国铝业股份有限公司 | Bauxite surface preprocessing-reverse floatation desiliconizing method |
| CN101700894A (en) * | 2009-11-21 | 2010-05-05 | 邬素芳 | Technology for preparing and synthesizing potassium sulphate by beneficiating method |
-
2011
- 2011-07-28 CN CN 201110221837 patent/CN102357402B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1149510A (en) * | 1996-08-01 | 1997-05-14 | 冶金工业部马鞍山矿山研究院 | Feldspar iron-removing ore dressing technology |
| CN1184076A (en) * | 1996-11-29 | 1998-06-10 | 中国地质大学（北京） | Technology process of producing zeolite molecular-sieve with potassium feldspar |
| WO2000000443A2 (en) * | 1998-06-26 | 2000-01-06 | Pueblo Process, Llc | Flotation process for separating silica from feldspar to form a feed material for making glass |
| CN101121151A (en) * | 2007-08-03 | 2008-02-13 | 中国铝业股份有限公司 | Bauxite surface preprocessing-reverse floatation desiliconizing method |
| CN101700894A (en) * | 2009-11-21 | 2010-05-05 | 邬素芳 | Technology for preparing and synthesizing potassium sulphate by beneficiating method |
Non-Patent Citations (2)
| Title |
|---|
| 某高铁钾长石除铁工艺流程研究;郭保万等;《矿产保护与利用》;20000430(第2期);22-26 * |
| 郭保万等.某高铁钾长石除铁工艺流程研究.《矿产保护与利用》.2000,(第2期),22-26. |
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