CN101444761B - A floatation separation method of hamartite misch metal mine containing high content mengite - Google Patents
A floatation separation method of hamartite misch metal mine containing high content mengite Download PDFInfo
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- CN101444761B CN101444761B CN2009100604119A CN200910060411A CN101444761B CN 101444761 B CN101444761 B CN 101444761B CN 2009100604119 A CN2009100604119 A CN 2009100604119A CN 200910060411 A CN200910060411 A CN 200910060411A CN 101444761 B CN101444761 B CN 101444761B
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Abstract
The present invention relates to a flotation method of rare-earth mineral. The floatation separation method of hamartite misch metal high containing mengite characterized in that it comprises the following steps: 1) grinding; 2) roughing separation: transmitting ore pulp after pulp conditioning to a flotation device, adding waterglass, hydroximic acid collecting agent and effervescing agent for roughing separation, and getting one time roughing tailing and one time roughing ore concentrate; 3) scavenging; 4) concentrating separation: adding water to one time roughing ore concentrate for mixing stirring pulp, and transmitting roughing ore concentrate after pulp conditioning to the flotation device, adding waterglass inhibitor, hydroximic acid collecting agent and effervescing agent, concentrating separation under the condition that mass concentration of roughing separation ore concentrate pulp is from 40to 50, pH from 7 to 9, temperature from 18 to 30 DEG C, and returning produced secondary concentrated tailing to roughing separation, getting secondary concentrated ore after concentrating separation as final flotation product. The method is of simple process, low production cost, high rare-earth recovery rate, and can obtain misch metal concentrated ore containing mengite and hamartite.
Description
Technical field
The present invention relates to a kind of method for floating of rare-earth mineral.
Background technology
China is rare earth resources big country, and rare earth resources is not only abundant, accounts for 67% of world's rare earth resources; And mineral are complete, and southern weathering ion adsorption type rare earth ore is arranged, Bayan Obo mishmetal ore deposit, the single bastnaesite of single bastnaesite in Sichuan and Weishan.This lays a solid foundation for China's reasonable development rare earth resources and development rare earth industry.Exploit the mishmetal ore deposit that the mineral type Rare Earth Mine of utilizing mainly contains single bastnaesite, monazite and bastnaesite and monazite symbiosis at present in the world.Usually from this three classes mineral deposit, reclaim rare earth and can adopt magnetic separation and gravity treatment, however for the very thin rare-earth mineral enriching and recovering of disseminated grain size in the ore mainly still by flotation.Mishmetal ore deposit, Hubei Northwest of Hubei Province area be one based on the monazite of monazite and the mishmetal ore deposit of bastnaesite symbiosis, it is different with the mishmetal ore deposit that China Bayan Obo produces be the Bayan Obo mishmetal ore deposit of producing based on bastnaesite, but they all are the mishmetal ore deposits based on light rare earth.
Mishmetal ore deposit, Northwest of Hubei Province area, Hubei is an iron Biobium rare-earth mineral deposit, the rare earth ore amount reaches 4.2 hundred million tons, average rare earth grade is 1.17%, reach as high as 17.5%, the rare earth metal amount reaches 1,220 ten thousand tons, being and even that China all can be described as large-scale Rare Earth Mine in the world, also is a mishmetal ore deposit of containing monazite and bastnaesite simultaneously.Ree distribution pattern is selected light rare earth partition type strongly, and the light rare earth partition is 98%, and the partition of cerium is greater than 50%.Have points of resemblance with the ore composition in Bayan Obo mishmetal ore deposit, but also have tangible difference, the industrial rare-earth mineral monazite in the ore and bastnaesite content are than different.Monazite is about 60%: 40% with bastnaesite content ratio in the mishmetal ore deposit, Northwest of Hubei Province area, Hubei; And Bayan Obo mishmetal ore deposit is about 33%: 67%.Because the monazite content in mishmetal ore deposit, Hubei Northwest of Hubei Province area is higher than Bayan Obo mishmetal ore deposit, therefore,, must together monazite and bastnaesite be reclaimed simultaneously in order effectively to reclaim rare earth.Because mishmetal ore deposit, Hubei Northwest of Hubei Province area average grade is low, most of ore rare earth grade 2% below, the rare-earth mineral disseminated grain size is thin, flotation is a reasonable rare earth recovery technology.When the design floatation process, must consideration reclaim monazite and two industrial rare-earth minerals of bastnaesite simultaneously, to pay close attention to the recovery of monazite especially, so the sorting process in its sorting process and Bayan Obo mishmetal ore deposit is distinguished to some extent.Table 1 has been listed the composition in mishmetal ore deposit, Northwest of Hubei Province area, Hubei.
The chemical composition (quality %) of mishmetal ore deposit, Northwest of Hubei Province area, table 1 Hubei, single monazite and single bastnaesite
Summary of the invention
The object of the present invention is to provide a kind of high flotation separation method that contains the bastnaesite mishmetal ore deposit of monazite, this method technology is simple, production cost is low, rare earth yield is high, can get high-grade mixed rare earth concentrates that contains monazite and bastnaesite.
To achieve these goals, technical scheme of the present invention is: a kind of high flotation separation method that contains the bastnaesite mishmetal ore deposit of monazite is characterized in that it comprises the steps:
1) ore grinding: mineral powder is worn in the bastnaesite mishmetal ore deposit that earlier height is contained monazite, the shared mass percent in bastnaesite mishmetal ore deposit that granularity contains monazite for the height of-0.074mm in the mineral powder is 70～100% ("-" expression comprise less than, the present invention equal 0.074mm);
2) roughly select: add entry in the mineral powder and mix to stir and size mixing, ore pulp; Wherein the adding quality of water is a mineral powder: water=1: 1～1.8; The ore pulp of sizing mixing after handling is sent into flotation unit, and add 0.5～2 kg of water glass inhibitor, 0.8～3 kilogram of hydroximic acid collecting agent and 50～150 gram foaming agents successively by the ore deposit (ore pulp) of giving per ton, be 35～50% in the ore pulp mass concentration, pH values of pulp is 7～8.5, roughly select (floatation separation) under the condition of 18～30 ℃ of slurry temperatures, obtains one roughing mine tailing and one roughing concentrate respectively;
3) scan: the one roughing mine tailing adds entry and mixes to stir and size mixing, the rougher tailings slurry, wherein the adding quality of water is the one roughing mine tailing: water=1: 1.0～1.5; The rougher tailings slurry of sizing mixing after handling is sent into flotation unit, and by per tonly add 0.5～2 kg of water glass inhibitor successively for ore deposit (rougher tailings slurry), 0.6～2 kilogram of hydroximic acid collecting agent and 50～120 restrains foaming agents, be 40～50% in rougher tailings slurry mass concentration, rougher tailings slurry pH is 7～8.5, scan (floatation separation) under the condition of 18～30 ℃ of rougher tailings slurry temperature, scavenger concentrate returns to be roughly selected, and scans mine tailing and abandons it;
4) selected: the one roughing concentrate adds entry and mixes to stir and size mixing, and must roughly select concentrate slurry, and wherein the adding quality of water is the one roughing concentrate: water=1: 1.0～1.5; The concentrate slurry of roughly selecting of sizing mixing after handling is sent into flotation unit, and add 0.5～1 kg of water glass inhibitor, 1～3 kilogram of hydroximic acid collecting agent and 60～130 gram foaming agents successively by the ore deposit (roughly selecting concentrate slurry) of giving per ton, in that to roughly select the concentrate slurry mass concentration be 40～50%, roughly select concentrate slurry pH is 7～9, roughly select under the condition of 18～30 ℃ of concentrate slurry temperature and carry out selected (floatation separation), the recleaning mine tailing that obtains returns to be roughly selected, and the recleaning concentrate that obtains is as final floating product (high-grade mixed rare earth concentrates that contains monazite and bastnaesite).
Described hydroximic acid collecting agent is hydroximic acid ammonium or hydroximic acid sodium.Described hydroximic acid ammonium is salicylhydroxamic acid ammonium (popular name: salicylaldoxime acid, bigcatkin willow hydroximic acid ammonium), and hydroximic acid sodium is salicyl aldoxime acid sodium (popular name: bigcatkin willow hydroximic acid sodium).
Described foaming agent is No. 2, terpenic oil.
The pH value is selected hydrochloric acid or NaOH to be respectively applied for and is adjusted the required acidity of flotation solution or alkaline with acid or alkali adjustment.
" height contains the bastnaesite mishmetal ore deposit of monazite " of the present invention is meant and comprises " mishmetal ore deposit, Hubei Northwest of Hubei Province area ", and the present invention also is applicable to the bastnaesite mishmetal ore deposit that contains monazite in other place of production.The mass content that is meant " height contains monazite " monazite in the mishmetal ore deposit among the present invention surpasses the mass content of bastnaesite.
The invention has the beneficial effects as follows:
1, adopts adding waterglass inhibitor, hydroximic acid collecting agent, foaming agent to make floating agent, under 18～30 ℃ of temperature, handle monazite and bastnaesite mishmetal ore deposit; And can produce the mixed rare earth concentrates (product) that contains monazite and bastnaesite through the flotation operation of one roughing, once purging selection and primary cleaning, its rare earth grade REO (rare earth oxide) is 50～58%, rare earth yield 80～85%; The present invention has the rare earth yield height, can get high-grade characteristics that contain the mixed rare earth concentrates of monazite and bastnaesite.
2, (technology is simple) lacked in technological process of the present invention, production cost is low.
Description of drawings
Fig. 1 is a process chart of the present invention.
The specific embodiment
For a better understanding of the present invention, further illustrate content of the present invention, but content of the present invention not only is confined to the following examples below in conjunction with embodiment.
Embodiment 1:
As shown in Figure 1, a kind of high flotation separation method that contains the bastnaesite mishmetal ore deposit of monazite, it comprises the steps:
1) ore grinding: select mishmetal ore deposit (be called the bastnaesite mishmetal ore deposit that height contains monazite, be also referred to as raw ore), Northwest of Hubei Province area, Hubei for use, head grade REO content is 1.45%; Earlier mineral powder is worn in the bastnaesite mishmetal ore deposit that height is contained monazite, and the shared mass percent in bastnaesite mishmetal ore deposit that granularity contains monazite for the height of-0.074mm in the mineral powder is 95% ("-" expression comprise less than, the present invention equal 0.074mm);
2) roughly select: add entry in the mineral powder and mix to stir and size mixing, ore pulp; Wherein the adding quality of water is a mineral powder: water=1: 1.4 (being that the ore pulp mass concentration is 42%); The ore pulp of sizing mixing after handling is sent into flotation unit, and add 1.2 kg of water glass inhibitor, 1.6 kilograms of collecting agents and 100 gram foaming agents successively by the ore deposit (ore pulp) of giving per ton, described foaming agent is No. 2, terpenic oil, described collecting agent is the salicylhydroxamic acid ammonium, be 42% in the ore pulp mass concentration, pH values of pulp is 8.0, roughly select (floatation separation) under the condition of 25 ℃ of slurry temperatures, obtains one roughing mine tailing and one roughing concentrate respectively;
3) scan: the one roughing mine tailing adds entry and mixes to stir and size mixing, the rougher tailings slurry, wherein the adding quality of water is the one roughing mine tailing: water=1: 1.2 (being that rougher tailings slurry mass concentration is 46%); The rougher tailings slurry of sizing mixing after handling is sent into flotation unit, and by per tonly add 1.2 kg of water glass inhibitor successively for ore deposit (rougher tailings slurry), 1.0 kilograms of collecting agents and 100 restrain foaming agents, described foaming agent is No. 2, terpenic oil, described collecting agent is the salicylhydroxamic acid ammonium, be 46% in rougher tailings slurry mass concentration, rougher tailings slurry pH is 7.5, scan (floatation separation) under the condition of 25 ℃ of rougher tailings slurry temperature, scavenger concentrate returns to be roughly selected, and scans mine tailing and abandons it;
4) selected: the one roughing concentrate adds entry and mixes to stir and size mixing, and must roughly select concentrate slurry, and wherein the adding quality of water is the one roughing concentrate: water=1: 1.2 (promptly roughly selecting the concentrate slurry mass concentration is 46%); The concentrate slurry of roughly selecting of sizing mixing after handling is sent into flotation unit, and add 0.8 kg of water glass inhibitor successively by the ore deposit (roughly selecting concentrate slurry) of giving per ton, 2 kilograms of collecting agents and 100 gram foaming agents, described foaming agent is No. 2, terpenic oil, described collecting agent is the salicylhydroxamic acid ammonium, roughly selecting the concentrate slurry mass concentration is 46%, roughly selecting concentrate slurry pH is 8, roughly select under the condition of 25 ℃ of concentrate slurry temperature and carry out selected (floatation separation), the recleaning mine tailing that obtains returns to be roughly selected, and the recleaning concentrate that obtains is as final floating product (high-grade mixed rare earth concentrates that contains monazite and bastnaesite).Obtain selected concentrate and contain that REO is 58.2%, rare earth yield reaches 80.46% mixed rare earth concentrates product.
Embodiment 2:
As shown in Figure 1, a kind of high flotation separation method that contains the bastnaesite mishmetal ore deposit of monazite, it comprises the steps:
1) ore grinding: select mishmetal ore deposit (be called the bastnaesite mishmetal ore deposit that height contains monazite, be also referred to as raw ore), Northwest of Hubei Province area, Hubei for use, head grade REO content is 1.68%; Earlier mineral powder is worn in the bastnaesite mishmetal ore deposit that height is contained monazite, and the shared mass percent in bastnaesite mishmetal ore deposit that granularity contains monazite for the height of-0.074mm in the mineral powder is 95% ("-" expression comprise less than, the present invention equal 0.074mm);
2) roughly select: add entry in the mineral powder and mix to stir and size mixing, ore pulp; Wherein the adding quality of water is a mineral powder: water=1: 1.3 (being that the ore pulp mass concentration is 44%); The ore pulp of sizing mixing after handling is sent into flotation unit, and add 0.5 kg of water glass inhibitor, 1.2 kilograms of collecting agents and 80 gram foaming agents successively by the ore deposit (ore pulp) of giving per ton, described foaming agent is No. 2, terpenic oil, described collecting agent is a salicyl aldoxime acid sodium, be 44% in the ore pulp mass concentration, pH values of pulp is 7.2, roughly select (floatation separation) under the condition of 20 ℃ of slurry temperatures, obtains one roughing mine tailing and one roughing concentrate respectively;
3) scan: the one roughing mine tailing adds entry and mixes to stir and size mixing, the rougher tailings slurry, wherein the adding quality of water is the one roughing mine tailing: water=1: 1.2 (being that rougher tailings slurry mass concentration is 46%); The rougher tailings slurry of sizing mixing after handling is sent into flotation unit, and by per tonly add 0.8 kg of water glass inhibitor successively for ore deposit (rougher tailings slurry), 0.8 kilogram of collecting agent and 80 restrains foaming agents, described foaming agent is No. 2, terpenic oil, described collecting agent is a salicyl aldoxime acid sodium, be 46% in rougher tailings slurry mass concentration, rougher tailings slurry pH is 7, scan (floatation separation) under the condition of 20 ℃ of rougher tailings slurry temperature, scavenger concentrate returns to be roughly selected, and scans mine tailing and abandons it;
4) selected: the one roughing concentrate adds entry and mixes to stir and size mixing, and must roughly select concentrate slurry, and wherein the adding quality of water is the one roughing concentrate: water=1: 1.2 (promptly roughly selecting the concentrate slurry mass concentration is 46%); The concentrate slurry of roughly selecting of sizing mixing after handling is sent into flotation unit, and add 0.5 kg of water glass inhibitor successively by the ore deposit (roughly selecting concentrate slurry) of giving per ton, 1.5 kilogram collecting agent and 80 gram foaming agents, described foaming agent is No. 2, terpenic oil, described collecting agent is a salicyl aldoxime acid sodium, roughly selecting the concentrate slurry mass concentration is 46%, roughly selecting concentrate slurry pH is 7, roughly select under the condition of 20 ℃ of concentrate slurry temperature and carry out selected (floatation separation), the recleaning mine tailing that obtains returns to be roughly selected, and the recleaning concentrate that obtains is as final floating product (high-grade mixed rare earth concentrates that contains monazite and bastnaesite).Obtain selected concentrate and contain that REO is 56.4%, rare earth yield reaches 81.5% mixed rare earth concentrates product.
Embodiment 3:
As shown in Figure 1, a kind of high flotation separation method that contains the bastnaesite mishmetal ore deposit of monazite, it comprises the steps:
1) ore grinding: select mishmetal ore deposit (be called the bastnaesite mishmetal ore deposit that height contains monazite, be also referred to as raw ore), Northwest of Hubei Province area, Hubei for use, head grade REO content is 1.83%; Earlier mineral powder is worn in the bastnaesite mishmetal ore deposit that height is contained monazite, and the shared mass percent in bastnaesite mishmetal ore deposit that granularity contains monazite for the height of-0.074mm in the mineral powder is 95% ("-" expression comprise less than, the present invention equal 0.074mm);
2) roughly select: add entry in the mineral powder and mix to stir and size mixing, ore pulp; Wherein the adding quality of water is a mineral powder: water=1: 1.3 (being that the ore pulp mass concentration is 44%); The ore pulp of sizing mixing after handling is sent into flotation unit, and add 0.7 kg of water glass, 1.5 kilograms of collecting agents and 60 gram foaming agents successively by the ore deposit (ore pulp) of giving per ton, described foaming agent is No. 2, terpenic oil, described collecting agent is the salicylhydroxamic acid ammonium, be 44% in the ore pulp mass concentration, pH values of pulp is 7.2, roughly select (floatation separation) under the condition of 18 ℃ of slurry temperatures, obtains one roughing mine tailing and one roughing concentrate respectively;
3) scan: the one roughing mine tailing adds entry and mixes to stir and size mixing, the rougher tailings slurry, wherein the adding quality of water is the one roughing mine tailing: water=1: 1.2 (being that rougher tailings slurry mass concentration is 46%); The rougher tailings slurry of sizing mixing after handling is sent into flotation unit, and by per tonly add 1.0 kg of water glass inhibitor successively for ore deposit (rougher tailings slurry), 0.8 kilogram of collecting agent and 60 restrains foaming agents, described foaming agent is No. 2, terpenic oil, described collecting agent is the salicylhydroxamic acid ammonium, be 46% in rougher tailings slurry mass concentration, rougher tailings slurry pH is 7, scan (floatation separation) under the condition of 18 ℃ of rougher tailings slurry temperature, scavenger concentrate returns to be roughly selected, and scans mine tailing and abandons it;
4) selected: the one roughing concentrate adds entry and mixes to stir and size mixing, and must roughly select concentrate slurry, and wherein the adding quality of water is the one roughing concentrate: water=1: 1.1 (promptly roughly selecting the concentrate slurry mass concentration is 48%); The concentrate slurry of roughly selecting of sizing mixing after handling is sent into flotation unit, and add 0.6 kg of water glass inhibitor successively by the ore deposit (roughly selecting concentrate slurry) of giving per ton, 1.5 kilogram collecting agent and 80 gram foaming agents, described foaming agent is No. 2, terpenic oil, described collecting agent is the salicylhydroxamic acid ammonium, roughly selecting the concentrate slurry mass concentration is 48%, roughly selecting concentrate slurry pH is 7, roughly select under the condition of 18 ℃ of concentrate slurry temperature and carry out selected (floatation separation), the recleaning mine tailing that obtains returns to be roughly selected, and the recleaning concentrate that obtains is as final floating product (high-grade mixed rare earth concentrates that contains monazite and bastnaesite).Obtain selected concentrate and contain that REO is 54.6%, rare earth yield reaches 84.12% mixed rare earth concentrates product.
Embodiment 4:
As shown in Figure 1, a kind of high flotation separation method that contains the bastnaesite mishmetal ore deposit of monazite, it comprises the steps:
1) ore grinding: select mishmetal ore deposit (be called the bastnaesite mishmetal ore deposit that height contains monazite, be also referred to as raw ore), Northwest of Hubei Province area, Hubei for use, head grade REO content is 1.83%; Earlier mineral powder is worn in the bastnaesite mishmetal ore deposit that height is contained monazite, and the shared mass percent in bastnaesite mishmetal ore deposit that granularity contains monazite for the height of-0.074mm in the mineral powder is 70% ("-" expression comprise less than, the present invention equal 0.074mm);
2) roughly select: add entry in the mineral powder and mix to stir and size mixing, ore pulp; Wherein the adding quality of water is a mineral powder: water=1: 1.4 (being that the ore pulp mass concentration is 42%); The ore pulp of sizing mixing after handling is sent into flotation unit, and add 0.5 kg of water glass, 0.8 kilogram of hydroximic acid collecting agent and 50 gram foaming agents successively by the ore deposit (ore pulp) of giving per ton, described hydroximic acid collecting agent is the salicylhydroxamic acid ammonium, described foaming agent is No. 2, terpenic oil, be 42% in the ore pulp mass concentration, pH values of pulp is 7, roughly select (floatation separation) under the condition of 18 ℃ of slurry temperatures, obtains one roughing mine tailing and one roughing concentrate respectively;
3) scan: the one roughing mine tailing adds entry and mixes to stir and size mixing, the rougher tailings slurry, wherein the adding quality of water is the one roughing mine tailing: water=1: 1 (being that rougher tailings slurry mass concentration is 50%); The rougher tailings slurry of sizing mixing after handling is sent into flotation unit, and by per tonly add 0.5 kg of water glass inhibitor successively for ore deposit (rougher tailings slurry), 0.6 kilogram of hydroximic acid collecting agent and 50 restrains foaming agents, described hydroximic acid collecting agent is the salicylhydroxamic acid ammonium, described foaming agent is No. 2, terpenic oil, be 50% in rougher tailings slurry mass concentration, rougher tailings slurry pH is 7, scan (floatation separation) under the condition of 18 ℃ of rougher tailings slurry temperature, scavenger concentrate returns to be roughly selected, and scans mine tailing and abandons it;
4) selected: the one roughing concentrate adds entry and mixes to stir and size mixing, and must roughly select concentrate slurry, and wherein the adding quality of water is the one roughing concentrate: water=1: 1.2 (promptly roughly selecting the concentrate slurry mass concentration is 46%); The concentrate slurry of roughly selecting of sizing mixing after handling is sent into flotation unit, and add 0.5 kg of water glass inhibitor successively by the ore deposit (roughly selecting concentrate slurry) of giving per ton, 1 kilogram of hydroximic acid collecting agent and 60 gram foaming agents, described hydroximic acid collecting agent is the salicylhydroxamic acid ammonium, described foaming agent is No. 2, terpenic oil, roughly selecting the concentrate slurry mass concentration is 46%, roughly selecting concentrate slurry pH is 7, roughly select under the condition of 18 ℃ of concentrate slurry temperature and carry out selected (floatation separation), the recleaning mine tailing that obtains returns to be roughly selected, the recleaning concentrate that obtains is as final floating product, obtaining selected mixed rare earth concentrates, to contain REO be 53.63%, rare earth yield 80.25%.
Embodiment 5:
As shown in Figure 1, a kind of high flotation separation method that contains the bastnaesite mishmetal ore deposit of monazite, it comprises the steps:
1) ore grinding: select mishmetal ore deposit (be called the bastnaesite mishmetal ore deposit that height contains monazite, be also referred to as raw ore), Northwest of Hubei Province area, Hubei for use, head grade REO content is 1.83%; Mineral powder is worn in the bastnaesite mishmetal ore deposit that height is contained monazite earlier, the shared mass percent in bastnaesite mishmetal ore deposit that granularity contains monazite for the height of-0.074mm in the mineral powder is 100% ("-" expression comprise less than, the present invention equal 0.074mm);
2) roughly select: add entry in the mineral powder and mix to stir and size mixing, ore pulp; Wherein the adding quality of water is a mineral powder: water=1: 1.8 (being that the ore pulp mass concentration is 36%); The ore pulp of sizing mixing after handling is sent into flotation unit, and add 2 kg of water glass inhibitor, 3 kilograms of hydroximic acid collecting agents and 150 gram foaming agents successively by the ore deposit (ore pulp) of giving per ton, described hydroximic acid collecting agent is a salicyl aldoxime acid sodium, described foaming agent is No. 2, terpenic oil, be 36% in the ore pulp mass concentration, pH values of pulp is 8.5, roughly select (floatation separation) under the condition of 30 ℃ of slurry temperatures, obtains one roughing mine tailing and one roughing concentrate respectively;
3) scan: the one roughing mine tailing adds entry and mixes to stir and size mixing, the rougher tailings slurry, wherein the adding quality of water is the one roughing mine tailing: water=1: 1.4 (being that rougher tailings slurry mass concentration is 42%); The rougher tailings slurry of sizing mixing after handling is sent into flotation unit, and by per tonly add 2 kg of water glass inhibitor successively for ore deposit (rougher tailings slurry), 2 kilograms of hydroximic acid collecting agents and 120 restrain foaming agents, described hydroximic acid collecting agent is a salicyl aldoxime acid sodium, described foaming agent is No. 2, terpenic oil, be 42% in rougher tailings slurry mass concentration, rougher tailings slurry pH is 8.5, scan (floatation separation) under the condition of 30 ℃ of rougher tailings slurry temperature, scavenger concentrate returns to be roughly selected, and scans mine tailing and abandons it;
4) selected: the one roughing concentrate adds entry and mixes to stir and size mixing, and must roughly select concentrate slurry, and wherein the adding quality of water is the one roughing concentrate: water=1: 1.0 (promptly roughly selecting the concentrate slurry mass concentration is 50%); The concentrate slurry of roughly selecting of sizing mixing after handling is sent into flotation unit, and add 1 kg of water glass inhibitor successively by the ore deposit (roughly selecting concentrate slurry) of giving per ton, 3 kilograms of hydroximic acid collecting agents and 130 gram foaming agents, described hydroximic acid collecting agent is a salicyl aldoxime acid sodium, described foaming agent is No. 2, terpenic oil, roughly selecting the concentrate slurry mass concentration is 50%, roughly selecting concentrate slurry pH is 9, roughly select under the condition of 30 ℃ of concentrate slurry temperature and carry out selected (floatation separation), the recleaning mine tailing that obtains returns to be roughly selected, the recleaning concentrate that obtains is as final floating product, it is 55.42% that the acquisition mixed rare earth concentrates contains REO, rare earth yield 81.27%.
The bound value of each raw material of the present invention, with and interval value can both realize the present invention, do not enumerate embodiment one by one at this; The bound value of technological parameter of the present invention (as temperature, pH value, mass concentration), with and interval value can both realize the present invention, do not enumerate embodiment one by one at this.
Claims (4)
1. one kind high flotation separation method that contains the bastnaesite mishmetal ore deposit of monazite is characterized in that it comprises the steps:
1) ore grinding: mineral powder is worn in the bastnaesite mishmetal ore deposit that earlier height is contained monazite, and granularity is 70～100% for the shared mass percent in bastnaesite mishmetal ore deposit that the height of-0.074mm contains monazite in the mineral powder;
2) roughly select: add entry in the mineral powder and mix to stir and size mixing, ore pulp; Wherein the adding quality of water is a mineral powder: water=1: 1～1.8; The ore pulp of sizing mixing after handling is sent into flotation unit, and add 0.5～2 kg of water glass inhibitor, 0.8～3 kilogram of hydroximic acid collecting agent and 50～150 gram foaming agents successively by the ore deposit of giving per ton, be 35～50% in the ore pulp mass concentration, pH values of pulp is 7～8.5, roughly select under the condition of 18～30 ℃ of slurry temperatures, obtains one roughing mine tailing and one roughing concentrate respectively;
3) scan: the one roughing mine tailing adds entry and mixes to stir and size mixing, the rougher tailings slurry, wherein the adding quality of water is the one roughing mine tailing: water=1: 1～1.5; The rougher tailings slurry of sizing mixing after handling is sent into flotation unit, and add 0.5～2 kg of water glass inhibitor, 0.6～2 kilogram of hydroximic acid collecting agent and 50～120 gram foaming agents successively by the ore deposit of giving per ton, be 40～50% in rougher tailings slurry mass concentration, rougher tailings slurry pH is 7～8.5, scan under the condition of 18～30 ℃ of rougher tailings slurry temperature, scavenger concentrate returns to be roughly selected, and scans mine tailing and abandons it;
4) selected: the one roughing concentrate adds entry and mixes to stir and size mixing, and must roughly select concentrate slurry, and wherein the adding quality of water is the one roughing concentrate: water=1: 1～1.5; The concentrate slurry of roughly selecting of sizing mixing after handling is sent into flotation unit, and add 0.5～1 kg of water glass inhibitor, 1～3 kilogram of hydroximic acid collecting agent and 60～130 gram foaming agents successively by the ore deposit of giving per ton, to roughly select the concentrate slurry mass concentration be 40～50%, roughly select concentrate slurry pH is 7～9, roughly select carry out under the condition of 18～30 ℃ of concentrate slurry temperature selected, the recleaning mine tailing that obtains returns to be roughly selected, and the recleaning concentrate that obtains is as final floating product.
2. a kind of high flotation separation method that contains the bastnaesite mishmetal ore deposit of monazite according to claim 1, it is characterized in that: described hydroximic acid collecting agent is hydroximic acid ammonium or hydroximic acid sodium.
3. a kind of high flotation separation method that contains the bastnaesite mishmetal ore deposit of monazite according to claim 2, it is characterized in that: described hydroximic acid ammonium is the salicylhydroxamic acid ammonium, hydroximic acid sodium is salicyl aldoxime acid sodium.
4. a kind of high flotation separation method that contains the bastnaesite mishmetal ore deposit of monazite according to claim 1, it is characterized in that: described foaming agent is No. 2, terpenic oil.
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| CN2009100604119A CN101444761B (en) | 2009-01-04 | 2009-01-04 | A floatation separation method of hamartite misch metal mine containing high content mengite |
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| CN102051477B (en) * | 2010-12-15 | 2012-07-04 | 内蒙古科技大学 | Method for chemically separating bastnaesite and urdite from mixed rare earth concentrate |
| CN102319631B (en) * | 2011-07-28 | 2012-11-14 | 内蒙古科技大学 | Method for flotation of rare earth from Baiyunebo tailings |
| CN102319632B (en) * | 2011-07-28 | 2012-12-12 | 内蒙古科技大学 | Beneficiation method for improving rare earth grade of rare earth ore |
| CN102274796A (en) * | 2011-07-28 | 2011-12-14 | 内蒙古科技大学 | Beneficiation method for purifying bastnaesite concentrate |
| CN102319630B (en) * | 2011-07-28 | 2012-11-14 | 内蒙古科技大学 | Method for improving rare earth grade of rare earth ore |
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| CN102886312A (en) * | 2012-10-15 | 2013-01-23 | 内蒙古科技大学 | Mineral sorting method for separating bastnaesite and monazite from high-grade mixed rare-earth concentrate |
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| CN110813541B (en) * | 2019-10-24 | 2021-05-28 | 商洛学院 | Collector combination for flotation of monazite and xenotime from fine-grained seashore placer |
| CN111135957B (en) * | 2020-01-13 | 2021-08-17 | 中国科学院地球化学研究所 | Method for recovering carbon from barium slag through flotation |
| CN111530634B (en) * | 2020-04-24 | 2022-03-22 | 核工业北京化工冶金研究院 | Flotation method of alkaline granite type rare earth ore |
| CN114074029B (en) * | 2020-08-18 | 2024-03-12 | 包头稀土研究院 | Beneficiation method for high-grade mixed rare earth concentrate |
| CN112246429B (en) * | 2020-11-05 | 2022-08-12 | 江西铜业集团有限公司 | Scrubbing pretreatment method before magnetic separation of flotation bulk concentrate of fluorine-carbon-cerium type rare earth ore |
| CN112774850B (en) * | 2020-12-28 | 2022-09-13 | 海南文盛新材料科技股份有限公司 | Ore dressing process for sorting monazite by using grading jigger |
| CN115350807B (en) * | 2022-08-24 | 2024-06-14 | 包头稀土研究院 | Treatment method of iron tailings and application of polyepoxysuccinic acid |
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