CN102527520A - Step-by-step flotation method for high-silicon high-calcium low-grade brucite - Google Patents
Step-by-step flotation method for high-silicon high-calcium low-grade brucite Download PDFInfo
- Publication number
- CN102527520A CN102527520A CN2012100034297A CN201210003429A CN102527520A CN 102527520 A CN102527520 A CN 102527520A CN 2012100034297 A CN2012100034297 A CN 2012100034297A CN 201210003429 A CN201210003429 A CN 201210003429A CN 102527520 A CN102527520 A CN 102527520A
- Authority
- CN
- China
- Prior art keywords
- flotation
- decalcification
- concentrate
- add
- shepardite
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Paper (AREA)
Abstract
The invention belongs to the technical field of mineral processing, and particularly relates to a step-by-step flotation method for high-silicon high-calcium low-grade brucite, which includes the steps: adding water into the ball-milled high-silicon high-calcium low-grade brucite to prepare raw ore pulp, feeding the raw ore pulp into flotation equipment, adding inhibitors, collecting agents and foaming agents into the raw ore pulp in a stirring manner to perform reverse rougher flotation, and performing reverse cleaner flotation for obtained raw finished ores for 0-2 times to obtain desiliconized ores; and adding water into the desiliconized ores to prepare ore pulp, adjusting the pH (potential of hydrogen) value of the ore pulp, adding inhibitors into the ore pulp in a stirring manner, stirring collecting agents to perform direct rougher flotation, and performing direct cleaner flotation for obtained decalcified finished ores for 0-2 times to obtain finished brucite ores. The ores treated by the step-by-step flotation method are low in grade, the obtained finished brucite ores are high in purity, and the step-by-step flotation method is fine in flotation effect and low in cost.
Description
Technical field
The invention belongs to technical field of mineral processing, be specifically related to the stepped-flotation separation method of the low grade shepardite of a kind of high silicon high calcium.
Background technology
Shepardite is a kind of important nonmetal mineral resource, is the magnesian important source material, is the quality raw materials that are used for producing high-grade inorganic combustion inhibitor and high grade refractory.
Shepardite is one of advantage mineral resources of China, and the reserves of the shepardite of having verified surpass 0.3 hundred million tons, and only there is China in the whole world at present, the U.S., and Canada, Norway, Russia and court rarely have this mineral reserve.For a long time, the most natural grades of the shepardite resource of China are higher, and high-quality shepardite ore is only exploited in many shepardites mine, and much the shepardite of low grade all fails to utilize, and has caused the significant wastage of resource.The continuous expansion of and inorganic fire-retarded and market of fire resisting material day by day exhausted along with high-quality shepardite resource; The demand that low grade shepardite is developed and utilized is extremely urgent, and the method for utilizing of developing a kind of effectively low grade shepardite is present urgent problem.
Paper " Jian, Jilin Province county shepardite serpentine comprehensive utilizating research " (Lee's allusion quotation; Geological experiment research center, Jilin Province) method for floating of the low-grade shepardite of a kind of high silicon is disclosed; Its main points are direct flotation methods; Silicon is wherein removed, and the rate of recovery of MgO is 49.07%, and the rate of recovery is lower; Paper " doing the research of collecting agent FLOTATION SEPARATION shepardite serpentine with FL " also discloses a floatation of the low-grade shepardite of a kind of high silicon, and its collecting agent that adopts is FL, and the rate of recovery of MgO has only 18.83%, and desiliconization effect is also bad.At present visible as yet to the research of the method for floating of the low-grade shepardite of high silicon high calcium, its method for floating and regime of agent are also demanded further research urgently.
Summary of the invention
To the problem of depositing at present; The present invention provides the stepped-flotation separation method of the low grade shepardite of a kind of high silicon high calcium; Purpose is through low grade shepardite being carried out reverse flotation and direct flotation, obtaining to be applicable to the high grade shepardite of producing inorganic combustion inhibitor and high-grade magnesium goods.
The composition of the low grade shepardite of high silicon high calcium of the present invention contains MgO50 ~ 60%, SiO by weight percentage
23 ~ 13%, CaO2 ~ 10%, surplus is an impurity.
Technical scheme of the present invention is carried out according to following steps:
(1) ball milling: the low grade shepardite ball milling of high silicon high calcium to the part of fineness≤0.074mm is accounted for 70 ~ 95% of whole material gross weights, add the raw ore slurry that water is processed weight concentration 20 ~ 40% then;
(2) reverse flotation: raw ore slurry is put into floatation equipment, under the condition of low whipping speed (1600 ~ 1800) rpm, add inhibitor waterglass earlier and stir 3 ~ 4min; The addition of waterglass is 800 ~ 1500g/t raw ore slurry; Add the collecting agent lauryl amine then and stir 3 ~ 4min, the addition of lauryl amine is 100 ~ 200g/t raw ore slurry, adds the foaming agent terpenic oil again and stirs 60 ~ 90s; The addition of terpenic oil is 10 ~ 20g/t raw ore slurry; Carry out 4 ~ 5min reverse flotation then and roughly select, sub-elect the mine tailing of calcic, obtain rough concentrate;
It is selected that the rough concentrate that obtains is carried out 0 ~ 2 reverse flotation; Before reverse flotation is selected, add the collecting agent lauryl amine, the lauryl amine addition is 25 ~ 50g/t rough concentrate, stirs 3 ~ 4min under low whipping speed (1600 ~ 1800) the rpm condition; Selected 2 ~ the 3min of reverse flotation obtains the decalcification ore deposit then;
(3) direct flotation: in the decalcification ore deposit, adding water, to process weight concentration be 20 ~ 30% decalcification ore pulp, adds Na again
2CO
3Regulating the decalcification slurry pH is 10 ~ 11, under low whipping speed 1600 ~ 1800rpm condition, adds the inhibitor calgon and stirs 3 ~ 4min; The calgon addition is 100 ~ 300g/t decalcification ore pulp; Add the collecting agent enuatrol again and stir 3 ~ 4min, the addition of enuatrol is 1000 ~ 2000g/t decalcification ore pulp, carries out 3 ~ 4min direct flotation then and roughly selects; Sub-elect siliceous mine tailing, obtain the decalcification concentrate;
Aligning decalcification concentrate that roughing flotation obtains, to carry out 0 ~ 2 direct flotation selected, and wherein the selected time of direct flotation is 3 ~ 4min for the first time, and the selected time of direct flotation is 2 ~ 3min for the second time, obtains the shepardite concentrate.
When rough concentrate being carried out 1 reverse flotation when selected, the mine tailing of a selected acquisition of reverse flotation turns back to add to be had in the raw ore slurry of inhibitor calgon, collecting agent lauryl amine and foaming agent terpenic oil, carries out reverse flotation jointly and roughly selects in the said method; When rough concentrate being carried out 2 reverse flotations when selected; The mine tailing of the selected acquisition of reverse flotation turns back to add for the first time has in the raw ore slurry of inhibitor calgon, collecting agent lauryl amine and foaming agent terpenic oil; Carrying out reverse flotation jointly roughly selects; The mine tailing of the selected acquisition of reverse flotation for the second time turns back to add has the reverse flotation of collecting agent lauryl amine to roughly select in the rough concentrate, and it is selected to carry out first time reverse flotation jointly.
When the decalcification concentrate being carried out 1 direct flotation when selected, the mine tailing of a selected acquisition of direct flotation turns back to add to be had in the decalcification ore pulp of inhibitor calgon and collecting agent enuatrol, carries out direct flotation jointly and roughly selects in the said method; When the decalcification concentrate being carried out 2 direct flotations when selected; The mine tailing of the selected acquisition of direct flotation turns back to add for the first time has in the desiliconization ore pulp of inhibitor calgon and collecting agent enuatrol; Carrying out direct flotation jointly roughly selects; The mine tailing of the selected acquisition of direct flotation for the second time turns back to direct flotation and roughly selects in the decalcification concentrate of acquisition, and it is selected to carry out first time direct flotation jointly.
Adopt said method, the composition of the shepardite concentrate of acquisition contains MgO64 ~ 68%, SiO by weight percentage
2≤2%, CaO≤1%, surplus is an impurity.
The MgO rate of recovery in the shepardite concentrate that obtains in the said method is 60 ~ 80% by weight percentage.
Compared with prior art, characteristics of the present invention and beneficial effect are:
The stepped-flotation separation method of the low grade shepardite of high silicon high calcium of the present invention, first step reverse flotation sub-elects most of calcic gangue, has improved the flotation environment, and the second step direct flotation sub-elects shepardite, removes siliceous gangue; This process flow operation is steady, finally can obtain the MgO grade and be at least 64%, the shepardite concentrate of the rate of recovery 60 ~ 80%;
Rough concentrate and decalcification concentrate carried out respectively reverse flotation is selected to depend on feedstock property and final products requirement with the selected number of times of direct flotation;
Method of the present invention compared with prior art, the handled grade of ore is low, the SiO in the raw ore
2, CaO content high, the shepardite concentrate of acquisition can reach MgO>=64.00%, SiO
2≤2%, CaO≤1%.
Description of drawings
Fig. 1 is the stepped-flotation separation method process chart of the low grade shepardite of high silicon high calcium of the embodiment of the invention 1.
The specific embodiment
Collecting agent lauryl amine that adopts in the embodiment of the invention and enuatrol, inhibitor calgon and waterglass, foaming agent terpenic oil and pH value conditioning agent Na
2CO
3Be technical grade product.
The reverse flotation equipment that adopts in the embodiment of the invention is XFD-63 type single-channel type flotation device, and the direct flotation equipment of employing is the miniature closed circuit continuous flotator of XFLB type.
The low grade shepardite of the high silicon high calcium of selecting for use in the embodiment of the invention is area, Dandong mineral products, and main gangue mineral is serpentine, dolomite and other silicate mineral; The shepardite disseminated grain size is thicker, is inhomogeneous embedding cloth, and valuable mineral and gangue all are prone to monomer dissociation, and its main component contains MgO50 ~ 60% by weight percentage, contains SiO
23 ~ 13%, contain CaO 2 ~ 10%, surplus is an impurity.
Embodiment 1
The low grade shepardite raw material main component of high silicon high calcium contains MgO53.08%, SiO by weight percentage
212.29%, CaO 4.75%, Al
2O
30.07%, surplus is an impurity;
The low grade shepardite ball milling of high silicon high calcium to the part of fineness≤0.074mm is accounted for 70% of whole material gross weights, add the raw ore slurry that water is processed weight concentration 20% then;
Raw ore slurry is put into floatation equipment, under the low whipping speed 1600rpm condition, add inhibitor waterglass earlier and stir 3min; The waterglass addition is 800g/t, adds the collecting agent lauryl amine again and stirs 3min, and the addition of lauryl amine is the 100g/t raw ore slurry; Add the foaming agent terpenic oil again and stir 60s, the addition of terpenic oil is the 10g/t raw ore slurry, carries out the 4min reverse flotation then and roughly selects; Sub-elect the mine tailing of calcic, obtain rough concentrate;
It is selected that the rough concentrate that reverse flotation is roughly selected acquisition carries out 2 reverse flotations, obtains the decalcification ore deposit, and reverse flotation adds the collecting agent lauryl amine before selected for the first time; Stir 3min under the low whipping speed 1600rpm condition; The selected 2min of reverse flotation then, reverse flotation adds the collecting agent lauryl amine before selected for the second time, stirs 3min under the low whipping speed 1600rpm condition; The selected 2min of reverse flotation then, the lauryl amine addition was the 25g/t rough concentrate when wherein each reverse flotation was selected;
In the decalcification ore deposit, adding water, to process weight concentration be 20% decalcification ore pulp, adds Na then
2CO
3Regulating the decalcification slurry pH is 10; Under the low whipping speed 1600rpm condition, add the inhibitor calgon earlier and stir 3min, the calgon addition is a 100g/t decalcification ore pulp; Add the collecting agent enuatrol again and stir 3min; The addition of enuatrol is a 1000g/t decalcification ore pulp, carries out the 3min direct flotation then and roughly selects, and sub-elects siliceous mine tailing and decalcification concentrate;
It is selected that the decalcification concentrate that direct flotation is roughly selected acquisition carries out 2 direct flotations, and wherein the selected time of direct flotation is 3min for the first time, and the selected time of direct flotation is 2min for the second time, obtains the shepardite concentrate, and its composition is by weight percentage for containing MgO67.90%, SiO
20.60%, CaO0.26%, surplus is an impurity;
The mine tailing of the selected acquisition of reverse flotation turns back to add for the first time has in the raw ore slurry of inhibitor waterglass, collecting agent lauryl amine and foaming agent terpenic oil; Carrying out reverse flotation jointly roughly selects; The mine tailing of the selected acquisition of reverse flotation for the second time turns back to add has the reverse flotation of collecting agent lauryl amine to roughly select in the rough concentrate of acquisition, and it is selected to carry out first time reverse flotation jointly;
The mine tailing of the selected acquisition of direct flotation has in the decalcification ore pulp of inhibitor calgon and collecting agent enuatrol with adding for the first time; Carrying out direct flotation jointly roughly selects; The mine tailing of the selected acquisition of direct flotation for the second time turns back to direct flotation and roughly selects in the decalcification concentrate of acquisition, and it is selected to carry out first time direct flotation jointly;
MgO in the shepardite concentrate that obtains accounts for 66.08% of MgO gross weight in the raw material.
Embodiment 2
The low grade shepardite raw material main component of high silicon high calcium contains MgO58.08%, SiO by weight percentage
25.29%, CaO4.75%, Al
2O
30.07%, surplus is an impurity;
The low grade shepardite ball milling of high silicon high calcium to the part of fineness≤0.074mm is accounted for 80% of whole material gross weights, add the raw ore slurry that water is processed weight concentration 30% then;
Raw ore slurry is put into floatation equipment, under the low whipping speed 1700rpm condition, add inhibitor waterglass earlier and stir 4min; The addition of waterglass is the 900g/t raw ore slurry, adds the collecting agent lauryl amine then and stirs 4min, and the addition of lauryl amine is the 150g/t raw ore slurry; Add terpenic oil again and stir 80s, the addition of terpenic oil is the 15g/t raw ore slurry, carries out the 5min reverse flotation then and roughly selects; Sub-elect the mine tailing of calcic, obtain rough concentrate;
It is selected that the rough concentrate that reverse flotation is roughly selected acquisition carries out 1 reverse flotation; Obtain the decalcification ore deposit, add the collecting agent lauryl amine before reverse flotation is selected, stir 4min under the low whipping speed 1700rpm condition; The selected 3min of reverse flotation then, the lauryl amine addition was the 30g/t rough concentrate when wherein reverse flotation was selected;
In the decalcification ore deposit, adding water, to process weight concentration be 25% decalcification ore pulp, adds Na then
2CO
3Regulating the decalcification slurry pH is 10.8, under the low whipping speed 1700rpm condition, adds the inhibitor calgon earlier and stirs 4min; The calgon addition is a 200g/t decalcification ore pulp; Add the collecting agent enuatrol again and stir 4min, the addition of enuatrol is a 1500g/t decalcification ore pulp, carries out the 4min direct flotation then and roughly selects; Sub-elect siliceous mine tailing, obtain the decalcification concentrate;
Aligning decalcification concentrate that roughing flotation obtains, to carry out 1 direct flotation selected, and the selected time of direct flotation is 4min, obtains the shepardite concentrate, and its composition is by containing MgO67.56%, SiO by weight percentage
20.69%, CaO0.22%, surplus is an impurity;
The mine tailing of the selected acquisition of reverse flotation turns back to add to be had in the raw ore slurry of inhibitor waterglass, collecting agent lauryl amine and foaming agent terpenic oil, carries out reverse flotation jointly and roughly selects;
The mine tailing of the selected acquisition of direct flotation turns back to add to be had in the decalcification ore pulp of inhibitor calgon and collecting agent enuatrol, carries out direct flotation jointly and roughly selects;
MgO in the shepardite concentrate that obtains accounts for 76.27% of MgO gross weight in the raw material.
Embodiment 3
The low grade shepardite raw material main component of high silicon high calcium contains MgO59.08%, SiO by weight percentage
23.29%, CaO3.75%, Al
2O
30.07%, surplus is an impurity;
The low grade shepardite ball milling of high silicon high calcium to the part of fineness≤0.074mm is accounted for 95% of whole material gross weights, add the raw ore slurry that water is processed weight concentration 40% then;
Raw ore slurry is put into floatation equipment, under the low whipping speed 1800rpm condition, add inhibitor waterglass earlier and stir 3min; The waterglass addition is the 1500g/t raw ore slurry, adds the collecting agent lauryl amine then and stirs 3min, and the addition of lauryl amine is the 200g/t raw ore slurry; Add terpenic oil again and stir 90s, the addition of terpenic oil is the 20g/t raw ore slurry, carries out the 4min reverse flotation then and roughly selects; Sub-elect the mine tailing of calcic, obtain rough concentrate;
The rough concentrate of reverse flotation being roughly selected acquisition is as the decalcification ore deposit, and in the decalcification ore deposit, adding water, to process weight concentration be 30% decalcification ore pulp, adds Na then
2CO
3Regulating the decalcification slurry pH is 11, under the low whipping speed 1800rpm condition, adds the inhibitor calgon earlier and stirs 3min; The calgon addition is a 300g/t decalcification ore pulp, adds the collecting agent enuatrol again and stirs 3min, and the addition of enuatrol is a 1600g/t decalcification ore pulp; Carry out the 3min direct flotation then and roughly select, sub-elect siliceous mine tailing, obtain the decalcification concentrate; The decalcification concentrate that direct flotation is roughly selected acquisition is the shepardite concentrate, and its main component contains MgO67.01%, SiO by weight percentage
20.64%, contain CaO0.32%, surplus is an impurity;
MgO in the shepardite concentrate that obtains accounts for 80.03% of MgO gross weight in the raw material.
Embodiment 4
The low grade shepardite raw material main component of high silicon high calcium contains MgO55.2%, SiO by weight percentage
23.88%, CaO7.22%, Al
2O
30.36%, surplus is an impurity;
The low grade shepardite ball milling of high silicon high calcium to the part of fineness≤0.074mm is accounted for 85% of whole material gross weights, add the raw ore slurry that water is processed weight concentration 40% then;
Raw ore slurry is put into floatation equipment, under the low whipping speed 1800rpm condition, add inhibitor waterglass earlier and stir 4min; The waterglass addition is the 1200g/t raw ore slurry, adds the collecting agent lauryl amine then and stirs 4min, and the addition of lauryl amine is the 150g/t raw ore slurry; Add terpenic oil again and stir 80s, the addition of terpenic oil is the 15g/t raw ore slurry, carries out the 5min reverse flotation then and roughly selects; Sub-elect the mine tailing of calcic, obtain rough concentrate;
It is selected that the rough concentrate that reverse flotation is roughly selected acquisition carries out 2 reverse flotations, obtains the decalcification ore deposit, adds the collecting agent lauryl amine when one time reverse flotation is selected earlier; Stir 3min under the low whipping speed 1600rpm condition; The selected 2min of reverse flotation adds the collecting agent lauryl amine earlier when the secondary reverse flotation is selected then, stirs 3min under the low whipping speed 1600rpm condition; The selected 2min of reverse flotation then, the lauryl amine addition was the 35g/t rough concentrate when wherein each reverse flotation was selected;
In the decalcification ore deposit, adding water, to process weight concentration be 25% decalcification ore pulp, adds Na then
2CO
3Regulating the decalcification slurry pH is 10.8, under the low whipping speed 1800rpm condition, adds the inhibitor calgon earlier and stirs 3min; The calgon addition is a 140g/t decalcification ore pulp; Add the collecting agent enuatrol again and stir 3min, the addition of enuatrol is a 1800g/t decalcification ore pulp, carries out the 3min direct flotation then and roughly selects; Sub-elect siliceous mine tailing, obtain the decalcification concentrate;
Aligning decalcification concentrate that roughing flotation obtains, to carry out 2 direct flotations selected, and wherein the selected time of direct flotation is 3min for the first time, and the selected time of direct flotation is 2min for the second time, obtains the shepardite concentrate, and its main component contains MgO67.93%, SiO by weight percentage
20.27%, CaO0.89%, surplus is an impurity;
The mine tailing of the selected acquisition of reverse flotation turns back to add for the first time has in the raw ore slurry of inhibitor waterglass, collecting agent lauryl amine and foaming agent terpenic oil; Carrying out reverse flotation jointly roughly selects; The mine tailing of the selected acquisition of reverse flotation for the second time turns back to add has the reverse flotation of collecting agent lauryl amine to roughly select in the rough concentrate of acquisition, and it is selected to carry out first time reverse flotation jointly;
The mine tailing of the selected acquisition of direct flotation turns back to add for the first time has in the decalcification ore pulp of inhibitor calgon and collecting agent enuatrol; Carrying out direct flotation jointly roughly selects; The mine tailing of the selected acquisition of direct flotation for the second time turns back to direct flotation and roughly selects in the decalcification concentrate of acquisition, and it is selected to carry out first time direct flotation jointly;
MgO in the shepardite concentrate that obtains accounts for 68.25% of MgO gross weight in the raw material.
Embodiment 5
The low grade shepardite raw material main component of high silicon high calcium contains MgO54.14%, SiO by weight percentage
23.66%, CaO3.18%, Al
2O
30.05%, surplus is an impurity;
Low grade shepardite ball milling to the fineness of high silicon high calcium is accounted for 93% of whole material gross weights less than the part of 0.074mm, add the raw ore slurry that water is processed weight concentration 30% then;
Raw ore slurry is put into floatation equipment, and under the low whipping speed 1700rpm condition, adding inhibitor waterglass addition earlier is 1000g/t decalcification ore pulp raw ore slurry; Add the collecting agent lauryl amine then and stir 3min, the addition of lauryl amine is the 100g/t raw ore slurry, adds terpenic oil again and stirs 60s; The addition of terpenic oil is the 10g/t raw ore slurry; Carry out the 4min reverse flotation then and roughly select, sub-elect the mine tailing of calcic, obtain rough concentrate;
The rough concentrate of reverse flotation being roughly selected acquisition is as the decalcification ore deposit, and in the decalcification ore deposit, adding water, to process weight concentration be 30% decalcification ore pulp, adds Na then
2CO
3Regulating the decalcification slurry pH is 10.8, under the low whipping speed 1700rpm condition, adds the inhibitor calgon earlier and stirs 3min; The calgon addition is a 260g/t decalcification ore pulp; Add the collecting agent enuatrol again and stir 4min, the addition of enuatrol is a 1900g/t decalcification ore pulp, carries out the 3min direct flotation then and roughly selects; Sub-elect siliceous mine tailing, obtain the decalcification concentrate;
Aligning decalcification concentrate that roughing flotation obtains, to carry out 2 direct flotations selected, and wherein the selected time of direct flotation is 3min for the first time, and the selected time of direct flotation is 2min for the second time; Obtain the shepardite concentrate, its composition is by containing MgO67.15%, SiO by weight percentage
20.26%, CaO 0.25%, and surplus is an impurity;
The mine tailing of the selected acquisition of direct flotation turns back to add for the first time has in the decalcification ore pulp of inhibitor calgon and collecting agent lauryl amine; Carrying out direct flotation jointly roughly selects; The mine tailing of the selected acquisition of direct flotation for the second time turns back to direct flotation and roughly selects in the decalcification concentrate of acquisition, and it is selected to carry out first time direct flotation jointly;
MgO in the shepardite concentrate that obtains accounts for 70.5% of MgO gross weight in the raw material.
Claims (5)
1. the stepped-flotation separation method of the one kind high low grade shepardite of silicon high calcium is characterized in that the low grade shepardite composition of the high silicon high calcium that adopts by weight percentage, contains MgO50 ~ 60%, SiO
23 ~ 13%, CaO2 ~ 10%, surplus is an impurity, and carries out according to following steps:
(1) ball milling: the low grade shepardite ball milling of high silicon high calcium to the part of fineness≤0.074mm is accounted for 70 ~ 95% of whole material gross weights, add the raw ore slurry that water is processed weight concentration 20 ~ 40% then;
(2) reverse flotation: raw ore slurry is put into floatation equipment, under the condition of low whipping speed (1600 ~ 1800) rpm, add inhibitor waterglass earlier and stir 3 ~ 4min; The addition of waterglass is 800 ~ 1500g/t raw ore slurry; Add the collecting agent lauryl amine then and stir 3 ~ 4min, the addition of lauryl amine is 100 ~ 200g/t raw ore slurry, adds the foaming agent terpenic oil again and stirs 60 ~ 90s; The addition of terpenic oil is 10 ~ 20g/t raw ore slurry; Carry out 4 ~ 5min reverse flotation then and roughly select, sub-elect the mine tailing of calcic, obtain rough concentrate;
It is selected that the rough concentrate that obtains is carried out 0 ~ 2 reverse flotation; Before reverse flotation is selected, add the collecting agent lauryl amine, the lauryl amine addition is 25 ~ 50g/t rough concentrate, stirs 3 ~ 4min under low whipping speed (1600 ~ 1800) the rpm condition; Selected 2 ~ the 3min of reverse flotation obtains the decalcification ore deposit then;
(3) direct flotation: in the decalcification ore deposit, adding water, to process weight concentration be 20 ~ 30% decalcification ore pulp, adds Na again
2CO
3Regulating the decalcification slurry pH is 10 ~ 11, under low whipping speed (1600 ~ 1800) the rpm condition, adds the inhibitor calgon and stirs 3 ~ 4min; The calgon addition is 100 ~ 300g/t decalcification ore pulp; Add the collecting agent enuatrol again and stir 3 ~ 4min, the addition of enuatrol is 1000 ~ 2000g/t decalcification ore pulp, carries out 3 ~ 4min direct flotation then and roughly selects; Sub-elect siliceous mine tailing, obtain the decalcification concentrate;
Aligning decalcification concentrate that roughing flotation obtains, to carry out 0 ~ 2 direct flotation selected, and wherein the selected time of direct flotation is 3 ~ 4min for the first time, and the selected time of direct flotation is 2 ~ 3min for the second time, obtains the shepardite concentrate.
2. the stepped-flotation separation method of the low grade shepardite of a kind of high silicon high calcium according to claim 1; It is characterized in that when rough concentrate being carried out 1 reverse flotation when selected; The mine tailing of the selected acquisition of reverse flotation turns back to add to be had in the raw ore slurry of inhibitor calgon, collecting agent lauryl amine and foaming agent terpenic oil, carries out reverse flotation jointly and roughly selects; When rough concentrate being carried out 2 reverse flotations when selected; The mine tailing of the selected acquisition of reverse flotation turns back to add for the first time has in the raw ore slurry of inhibitor calgon, collecting agent lauryl amine and foaming agent terpenic oil; Carrying out reverse flotation jointly roughly selects; The mine tailing of the selected acquisition of reverse flotation for the second time turns back to add has the reverse flotation of collecting agent lauryl amine to roughly select in the rough concentrate, and it is selected to carry out first time reverse flotation jointly.
3. the stepped-flotation separation method of the low grade shepardite of a kind of high silicon high calcium according to claim 1; It is characterized in that when the decalcification concentrate being carried out 1 direct flotation when selected; The mine tailing of a selected acquisition of direct flotation turns back to add to be had in the decalcification ore pulp of inhibitor calgon and collecting agent enuatrol, carries out direct flotation jointly and roughly selects; When the decalcification concentrate being carried out 2 direct flotations when selected; The mine tailing of the selected acquisition of direct flotation turns back to add for the first time has in the decalcification ore pulp of inhibitor calgon and collecting agent enuatrol; Carrying out direct flotation jointly roughly selects; The mine tailing of the selected acquisition of direct flotation for the second time turns back to direct flotation and roughly selects in the decalcification concentrate of acquisition, and it is selected to carry out 1 direct flotation jointly.
4. a kind of high silicon high calcium according to claim 1 hangs down the stepped-flotation separation method of grade shepardite, it is characterized in that the composition of described shepardite concentrate, by weight percentage, contains MgO64 ~ 68%, SiO
2≤2%, CaO≤1%, surplus is an impurity.
5. the stepped-flotation separation method of the low grade shepardite of a kind of high silicon high calcium according to claim 1, the MgO rate of recovery in the shepardite concentrate that it is characterized in that obtaining is 60 ~ 80% by weight percentage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210003429 CN102527520B (en) | 2012-01-07 | 2012-01-07 | Step-by-step flotation method for high-silicon high-calcium low-grade brucite |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210003429 CN102527520B (en) | 2012-01-07 | 2012-01-07 | Step-by-step flotation method for high-silicon high-calcium low-grade brucite |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102527520A true CN102527520A (en) | 2012-07-04 |
| CN102527520B CN102527520B (en) | 2013-07-24 |
Family
ID=46336258
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201210003429 Expired - Fee Related CN102527520B (en) | 2012-01-07 | 2012-01-07 | Step-by-step flotation method for high-silicon high-calcium low-grade brucite |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102527520B (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103785546A (en) * | 2014-02-20 | 2014-05-14 | 安徽工业大学 | Method for separating quartz from andalusite in floating mode under nearly neutral condition |
| CN104384027A (en) * | 2014-11-05 | 2015-03-04 | 北方重工集团有限公司 | Vertical roll final flour mill flotation method for magnesite ores |
| CN104959212A (en) * | 2015-07-07 | 2015-10-07 | 湖南有色金属研究院 | Classified ore dressing method of calcareous and siliceous mixed type stone coal vanadium ore |
| CN106349764A (en) * | 2016-08-31 | 2017-01-25 | 合肥中科阻燃新材料有限公司 | Method for efficiently preparing modified magnesium hydroxide fire retardant through low-grade brucite |
| CN106365184A (en) * | 2016-08-31 | 2017-02-01 | 合肥中科阻燃新材料有限公司 | Method for purification of flame retardant magnesium hydroxide prepared through physical method |
| CN106366700A (en) * | 2016-08-31 | 2017-02-01 | 合肥中科阻燃新材料有限公司 | Wet preparation method of magnesium hydrate flame retardant |
| CN108672092A (en) * | 2018-05-16 | 2018-10-19 | 东北大学 | The process for effectively purifying of the low grade shepardite of high-silicon high calcium high ferro |
| CN110302904A (en) * | 2019-06-28 | 2019-10-08 | 武汉理工大学 | A kind of method of high-grade basic magnesium carbonate mine drop calcium purification |
| CN114405658A (en) * | 2022-01-20 | 2022-04-29 | 鞍钢集团北京研究院有限公司 | Method for reducing serpentine content in brucite flotation concentrate |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5753104A (en) * | 1994-07-06 | 1998-05-19 | Boc Gases Australia Limited | Physical separation processes for mineral slurries |
| CN1221654A (en) * | 1998-10-16 | 1999-07-07 | 荣葵一 | Wetting gravity ore dressing tech. of asbestos ore |
| CN101773868A (en) * | 2009-01-08 | 2010-07-14 | 鞍钢集团矿业公司 | Novel process for purifying magnesite |
| CN102189040A (en) * | 2011-01-26 | 2011-09-21 | 东北大学 | Method for carrying out flotation on high-silicon high-calcium low-grade magnesite step by step |
-
2012
- 2012-01-07 CN CN 201210003429 patent/CN102527520B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5753104A (en) * | 1994-07-06 | 1998-05-19 | Boc Gases Australia Limited | Physical separation processes for mineral slurries |
| CN1221654A (en) * | 1998-10-16 | 1999-07-07 | 荣葵一 | Wetting gravity ore dressing tech. of asbestos ore |
| CN101773868A (en) * | 2009-01-08 | 2010-07-14 | 鞍钢集团矿业公司 | Novel process for purifying magnesite |
| CN102189040A (en) * | 2011-01-26 | 2011-09-21 | 东北大学 | Method for carrying out flotation on high-silicon high-calcium low-grade magnesite step by step |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103785546A (en) * | 2014-02-20 | 2014-05-14 | 安徽工业大学 | Method for separating quartz from andalusite in floating mode under nearly neutral condition |
| CN103785546B (en) * | 2014-02-20 | 2016-02-24 | 安徽工业大学 | A kind of method of FLOTATION SEPARATION quartz and andalusite under near-neutral sulfite deinking |
| CN104384027A (en) * | 2014-11-05 | 2015-03-04 | 北方重工集团有限公司 | Vertical roll final flour mill flotation method for magnesite ores |
| CN104959212A (en) * | 2015-07-07 | 2015-10-07 | 湖南有色金属研究院 | Classified ore dressing method of calcareous and siliceous mixed type stone coal vanadium ore |
| CN104959212B (en) * | 2015-07-07 | 2017-12-15 | 湖南有色金属研究院 | A kind of calcareous and classification beneficiation method of siliceous mixed type bone coal navajoite |
| CN106366700A (en) * | 2016-08-31 | 2017-02-01 | 合肥中科阻燃新材料有限公司 | Wet preparation method of magnesium hydrate flame retardant |
| CN106365184A (en) * | 2016-08-31 | 2017-02-01 | 合肥中科阻燃新材料有限公司 | Method for purification of flame retardant magnesium hydroxide prepared through physical method |
| CN106349764A (en) * | 2016-08-31 | 2017-01-25 | 合肥中科阻燃新材料有限公司 | Method for efficiently preparing modified magnesium hydroxide fire retardant through low-grade brucite |
| CN106349764B (en) * | 2016-08-31 | 2018-05-18 | 合肥中科阻燃新材料有限公司 | A kind of low-grade shepardite high efficiency prepares modified magnesium hydroxide flame retardant agent method |
| CN106366700B (en) * | 2016-08-31 | 2019-03-01 | 合肥中科阻燃新材料有限公司 | A kind of flame retardant of magnesium hydroxide wet preparation method |
| CN108672092A (en) * | 2018-05-16 | 2018-10-19 | 东北大学 | The process for effectively purifying of the low grade shepardite of high-silicon high calcium high ferro |
| WO2019218295A1 (en) * | 2018-05-16 | 2019-11-21 | 东北大学 | Efficient purification method for high-silicon, high-calcium, high-iron and low-grade brucite |
| CN110302904A (en) * | 2019-06-28 | 2019-10-08 | 武汉理工大学 | A kind of method of high-grade basic magnesium carbonate mine drop calcium purification |
| CN114405658A (en) * | 2022-01-20 | 2022-04-29 | 鞍钢集团北京研究院有限公司 | Method for reducing serpentine content in brucite flotation concentrate |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102527520B (en) | 2013-07-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102527520B (en) | Step-by-step flotation method for high-silicon high-calcium low-grade brucite | |
| CN102189040B (en) | Method for carrying out flotation on high-silicon high-calcium low-grade magnesite step by step | |
| CN102744151B (en) | Branch flotation technology for silicon calcium collophanite | |
| CN103706485B (en) | A kind of beneficiation method of high carbon acid calcium type fluorite ore | |
| CN102921551B (en) | Fluorite mineral flotation method | |
| CN104084315B (en) | Beneficiation method for separating fluorite and tungsten through flotation | |
| CN101773868B (en) | Novel process for purifying magnesite | |
| CN101862703B (en) | Separation-smelting combined method for producing iron ore concentrate from oolitic lean hematite | |
| CN101693222A (en) | Method for separating oolitic hematite | |
| CN101274302A (en) | Stepped-flotation separation method for iron ore containing carbonas | |
| CN101371998A (en) | Flotation method of low ore grade manganous carbonate ore | |
| CN103934093B (en) | The beneficiation method of microfine refractory iron ore flotation concentrate productivity and the response rate can be improved | |
| CN106622634A (en) | Beneficiation method for copper-cobalt ore | |
| CN105381868B (en) | Physical beneficiation phosphorus reduction method for skarn type high-phosphorus molybdenum ore | |
| CN102513203B (en) | Method for recycling high-phosphorus/sulfur siderite resource | |
| CN107774454A (en) | A kind of method for floating of high calcium magnesite | |
| CN108672092A (en) | The process for effectively purifying of the low grade shepardite of high-silicon high calcium high ferro | |
| CN104874486B (en) | A kind of method for floating for recycling microfine mica | |
| CN109939834A (en) | Composite collector and its application in extremely low-grade ore floatation containing rubidium | |
| CN104384027A (en) | Vertical roll final flour mill flotation method for magnesite ores | |
| CN104959212B (en) | A kind of calcareous and classification beneficiation method of siliceous mixed type bone coal navajoite | |
| CN101954314B (en) | Method for improving copper concentration technical index of graphite-containing copper ore | |
| CN108906337A (en) | Mineral separation method for improving production index and reducing influence of production backwater on production index of carbon-containing gold ore | |
| CN104801425B (en) | A kind of phosphorus ore is classified many grade floatation process of dosing in batches | |
| CN103691562A (en) | Flotation method for gold ore with high mining filling body content |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: DANDONG YONGFENG ULTRAFINE POWDER MATERIAL CO., LT Free format text: FORMER OWNER: DANDONG YONGFENG MINERALS CO., LTD. Effective date: 20130730 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20130730 Address after: 110819 Heping Road, Heping District, Liaoning, Shenyang, Lane No. 11, No. 3 Patentee after: Northeastern University Patentee after: Dandong Yongfeng superfine powder material Co., Ltd. Address before: 110819 Heping Road, Heping District, Liaoning, Shenyang, Lane No. 11, No. 3 Patentee before: Northeastern University Patentee before: Dandong Yongfeng Mining Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130724 Termination date: 20150107 |
|
| EXPY | Termination of patent right or utility model |