CN1321746C - Deslim-floatation celestite inished ore process - Google Patents
Deslim-floatation celestite inished ore process Download PDFInfo
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- CN1321746C CN1321746C CNB2005100216134A CN200510021613A CN1321746C CN 1321746 C CN1321746 C CN 1321746C CN B2005100216134 A CNB2005100216134 A CN B2005100216134A CN 200510021613 A CN200510021613 A CN 200510021613A CN 1321746 C CN1321746 C CN 1321746C
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Abstract
The present invention relates to an ore separating technique for celestite, particularly to a technique for desliming and repeatedly selecting celestite ore concentrate. The present invention is realized by the following technical scheme that the technological process for desliming and repeatedly selecting the celestite ore concentrate comprises: raw ore is ground by rods, deslimed in two sections, helically graded, separated in a flotation mode, roughly separated, scavenged in two levels and concentrated in five levels to obtain the celestite ore concentrate. The technique of the present invention is used for the ore dressing concentration of low-grade celestite ore with large sediment content, the index is good, and the index with the ore concentrate yield of 37.82% to 42.09%, the SrSO4 content of 75.75% to 80.10% and the recovery rate of 75.17% to 79.59% can be obtained; the present invention has the advantages of large treating capacity of a five-level floatation device, simple device configuration, low water consumption, low medicament dosage, low ore concentrate cost, stable technology and easy operation; the present invention can be widely used in the ore separation production of the celestite ore concentrate and provides high-grade celestite ore concentrate for the production of strontium carbonate in a next step.
Description
Technical field
The present invention relates to a kind of celestine ore-dressing technique, specifically relate to a kind of desliming-floatation celestite inished ore process.
Background technology
Strontium carbonate is a kind of basic Inorganic Chemicals, because it has very strong X ray function of shielding and unique physicochemical properties, uses very extensive in every field such as electronics, military project, metallurgy, medicine, food and optics.Strontium is the element of abundance minimum in the alkali earth metal, in more than the 40 kind of strontium mineral that occurring in nature has been found, operational industrial mineral is mainly celestine, strontianite, the raw material that is used to produce strontium carbonate mainly is celestine and strontianite, and is the primary raw material that strontium is reclaimed in ore dressing with the celestine.
Strong wind mountain, Qinghai Province celestite ore belongs to the ultra-large type sedimentary deposit, and the mine is positioned at the Gobi desert of the northwestward, the Caidamu Basin, and height above sea level is higher, and (2800～2830 meters) are dry, no surface water, inclement condition.The main feature of ore is: the blunt face of land of ore body, be suitable for strip mining transformation, and the celestine grade is lower, SrSO
4Content only about 30%, needing could be as the raw materials for production of carbon reduction technology to upgrade through preconcentration; The disseminated grain size of celestine is superfine in the ore, needs fine grinding that it is dissociated; In addition, celestine and dolomite, corner stone and sericite embedding cloth close relation in the celestine raw ore and complexity, disseminated grain size thickness differ, and it is many to contain mud in the ore, and the sorting difficulty is bigger.Flotation, gravity treatment or gravity treatment-joint flotation technology flow process are adopted in traditional ore dressing, and the concentrate content of obtaining is low, and the rate of recovery is low, is difficult for obtaining desirable mineral processing index, is not suitable for the ore dressing of strong wind mountain, Qinghai celestite ore.
Summary of the invention
The technical problem to be solved in the present invention is to overcome the deficiency that prior art exists, advancing concentrate, the size mixing stirring, flotation flowsheet of oblique concentrator through single stage crushing, two stage grinding, classification overflow, the desliming of secondary lamella thickener case, cyclone overflow and adopting that one-level is roughly selected, Pyatyi is selected, one-level is scanned of a kind of suitable Qinghai strong wind mountain celestite ore ore dressing is provided, and one-level is swept selected desliming-floatation celestite inished ore process.
Technical solution of the present invention is achieved by following technical proposals: desliming-floatation celestite inished ore process of the present invention comprises broken process, rod milling operation, flotation operation, enrichment process, one section desliming operation and two sections desliming operations; The flotation operation comprises: roughly select operation, scan operation, sweep selected operation, the selected operation of one-level, the selected operation of secondary, three grades of selected operations, the selected operation of level Four, the selected operation of Pyatyi;
Wherein: a) described rod milling operation is to be a 5mm with granularity, SrSO
4The raw ore of grade 44.34% wears into granularity and is-0.015～-the desliming granularity of 0.020mm;
B) described classification overflow operation is with sand pump placer to be delivered to desliming bucket (8) to carry out first section desliming;
C) described desliming operation is that placer is carried out first section desliming at desliming bucket (8), and the gravity flow of its desliming sand setting enters desliming bucket (9) and carries out second section desliming, through two sections deslimings remove-to get productive rate be 77.44% to the sludge of 0.019mm, SrSO
4Content is 47.60%, the rate of recovery is 93.23% sand setting;
D) described screw classifying operation is formed the closed circuit grinding system by ball mill and spiral classifier and ore is milled to-200 orders and accounts for 95%～99% ore milling product;
E) described enrichment process is the ore milling product behind the screw classifying to be raised with sand pump deliver to the desliming bucket pulp density is brought up to 25%～35%, ore being delivered to tank diameter (11), to add concentration be 10% dispersion medicament waterglass again, and ore pulp enters tank diameter (12), and to add concentration be 5% the compound collecting medicament of alkyl RQX3;
F) described roughing flotation operation is that the ore pulp that will stir through dosing enters flotation device and carries out roughing flotation;
G) the described operation of scanning is the mine tailing behind the roughing flotation to be entered in the double flute flotation cell to add concentration be that 10% dispersion medicament waterglass, concentration are that 5% the compound collecting medicament of alkyl RQX3 scans;
H) described sweep selected operation be with scan the back ore pulp enter sweep in single groove flotation cell selected;
I) described one-level is selected be with the foam ore deposit of roughing flotation and the selected chats of level Four enter add in the double flute flotation cell concentration be carry out behind 10% the dispersion medicament waterglass selected;
J) described secondary is selected is that the foam ore deposit that one-level is selected enters in single groove flotation cell and to add concentration to be that 10% dispersion medicament waterglass carries out secondary selected;
K) described three grades selected be with selected 2 foam ore deposit and the selected chats of Pyatyi enter add in single groove flotation cell concentration be 10% inhibition medicament sodium carbonate, concentration be 1% inhibition medicament calgon enter three grades selected;
L) the selected operation of described level Four is three grades of selected foam ore deposits to be entered in single groove flotation cell add concentration to be that 1% inhibition medicament calgon carries out level Four selected;
M) the selected operation of described Pyatyi is that the foam ore deposit that level Four is selected enters in single groove flotation cell and to add concentration to be that 1% inhibition medicament calgon enters Pyatyi selected.
Desliming-floatation celestite inished ore process of the present invention has following beneficial effect compared with prior art: adopted ore grinding, classification overflow, secondary desliming owing to the present invention is directed to strong wind mountain, Qinghai Province celestite ore, concentrate, the stirring of sizing mixing, the flotation one-level is roughly selected, and one-level is scanned, one-level is swept selected, desliming-floatation celestite inished ore process that Pyatyi is selected, mineral processing index is good, is under 35 ℃～40 ℃ conditions at flotation temperature, can obtain concentrate yield is 37.82%～42.09%, SrSO
4Content is 75.75%～80.10%, and the rate of recovery is 75.17%～79.59% index; Pyatyi floatation equipment treating capacity is big, and the equipment configuration is simple, and the water consumption is low, the low concentrate cost of dosing is low, process stabilizing of the present invention, processing ease, can be widely used in during the celestite concentrate ore dressing produces, and produce strontium carbonate for next step and provide grade higher celestite concentrate.
Description of drawings
The present invention has following accompanying drawing:
Fig. 1 is desliming of the present invention-floatation celestite inished ore process flow chart;
Fig. 2 is desliming flotation of the present invention-celestite inished ore process equipment contact figure.
Wherein: 1, be raw ore; 2, be oscillating feeder; 3, be rod mill; 4, spiral classifier; 5, ball mill; 6, spiral classifier; 7, sand pump; 8, desliming bucket; 9, desliming bucket; 10, be the desliming bucket; 11, for stirring, waterglass uses tank diameter; 12, collecting agent stirs and uses tank diameter; 13, three-flute is roughly selected and is used flotation device; 14, double flute is scanned and is used flotation device; 15, single groove is swept the selected flotation device of using; 16, the selected flotation device of using of double flute one-level; 17, the selected flotation device of using of single groove secondary; 18, three grades of selected flotation devices of using of single groove; 19, the selected flotation device of using of single groove level Four; 20, the selected flotation device of using of single groove Pyatyi.
The specific embodiment
Below in conjunction with drawings and Examples the present invention is further described.
Desliming of the present invention-floatation celestite inished ore process flow process comprises broken process, rod milling operation, flotation operation, enrichment process, one section desliming operation and two sections desliming operations; The flotation operation comprises: roughly select operation, scan operation, sweep selected operation, the selected operation of one-level, the selected operation of secondary, three grades of selected operations, the selected operation of level Four, the selected operation of Pyatyi;
Wherein: a) described rod milling operation is to be a 5mm with granularity, SrSO
4The raw ore of grade 44.34% wears into granularity and is-0.015～-the desliming granularity of 0.020mm;
B) described classification overflow operation is with sand pump placer to be delivered to desliming bucket (8) to carry out first section desliming;
C) described desliming operation is that placer is carried out first section desliming at desliming bucket (8), and the gravity flow of its desliming sand setting enters desliming bucket (9) and carries out second section desliming, through two sections deslimings remove-to get productive rate be 77.44% to the sludge of 0.019mm, SrSO
4Content is 47.60%, the rate of recovery is 93.23% sand setting;
D) described screw classifying operation is formed the closed circuit grinding system by ball mill and spiral classifier and ore is milled to-200 orders and accounts for 95%～99% ore milling product;
E) described enrichment process is the ore milling product behind the screw classifying to be raised with sand pump deliver to the desliming bucket pulp density is brought up to 25%～35%, ore being delivered to tank diameter (11), to add concentration be 10% dispersion medicament waterglass again, and ore pulp enters tank diameter (12), and to add concentration be 5% the compound collecting medicament of alkyl RQX3;
F) described roughing flotation operation is that the ore pulp that will stir through dosing enters flotation device and carries out roughing flotation;
G) the described operation of scanning is the mine tailing behind the roughing flotation to be entered in the double flute flotation cell to add concentration be that 10% dispersion medicament waterglass, concentration are that 5% the compound collecting medicament of alkyl RQX3 scans;
H) described sweep selected operation be with scan the back ore pulp enter sweep in single groove flotation cell selected;
I) described one-level is selected be with the foam ore deposit of roughing flotation and the selected chats of level Four enter add in the double flute flotation cell concentration be carry out behind 10% the dispersion medicament waterglass selected;
J) described secondary is selected is that the foam ore deposit that one-level is selected enters in single groove flotation cell and to add concentration to be that 10% dispersion medicament waterglass carries out secondary selected;
K) described three grades selected be with selected 2 foam ore deposit and the selected chats of Pyatyi enter add in single groove flotation cell concentration be 10% inhibition medicament sodium carbonate, concentration be 1% inhibition medicament calgon enter three grades selected;
L) the selected operation of described level Four is three grades of selected foam ore deposits to be entered in single groove flotation cell add concentration to be that 1% inhibition medicament calgon carries out level Four selected;
M) the selected operation of described Pyatyi is that the foam ore deposit that level Four is selected enters in single groove flotation cell and to add concentration to be that 1% inhibition medicament calgon enters Pyatyi selected.
The foam of described each flotation operation is successively from flowing to next operation, selected being back to the selected chats of secondary of one-level scanned operation, three grades of selected chats and sweep selected foam and return thickening cone and return after concentrated and roughly select operation, the selected chats of level Four is back to the selected operation of one-level, the selected chats of Pyatyi returns three grades of selected operations, and concentrate is final products; Scanning and sweep selected ore discharge discharges as flotation tailing; Sweep selected concentrate and return thickening cone continuation operation with three grades of selected chats; The chats that one-level is selected, secondary is selected enters to be scanned, and the next stage flotation is continued in the foam ore deposit.
Described flotation temperature is: 25 ℃～30 ℃; It is 5000Kg/t that described tank diameter (11) disperses medicament waterglass addition; The compound collecting medicament of tank diameter (12) alkyl RQX3 addition is 1320Kg/t; It is 1330Kg/t that roughing flotation disperses medicament waterglass addition; Scanning dispersion medicament waterglass addition is 630Kg/t, and the compound collecting medicament of alkyl RQX3 addition is 310Kg/t; The selected dispersion medicament of one-level waterglass addition is 1050Kg/t; The selected inhibition medicament of secondary sodium carbonate addition is 260Kg/t, and the calgon addition is 105Kg/t; Three grades of selected inhibition medicament calgon additions are 53Kg/t; The selected inhibition medicament of level Four calgon addition is 32Kg/t.
The productive rate of described raw ore after two sections deslimings is 21.655, SrSO
4Content is 37.10%, and the rate of recovery is 19.96%; Productive rate behind the roughing flotation is 22.56%, SrSO
4Content is 19.32%, and the rate of recovery is 10.83%; The productive rate of scanning the back chats is 42.77%, SrSO
4Content is 40.73%, and the rate of recovery is 43.29%; The productive rate of sweeping selected back chats is 29.26%, SrSO
4Content is 48.61%, and the rate of recovery is 35.35%; The selected foam mineral products rate of one-level is 93.71%, SrSO
4Content is 63.41%, and the rate of recovery is 147.67%, and being back to the chats productive rate of scanning is .24.79%, SrSO
4Content is 32.19%, and the rate of recovery is 19.83%; The selected foam mineral products rate of secondary is 76.37%, SrSO
4Content is 66.93%, and the rate of recovery is 127.02%, and being back to the chats productive rate of scanning is 17.34%, SrSO
4Content is 47.91%, and the rate of recovery is 20.65%; Three grades of selected foam mineral products rates are 75.66%, SrSO
4Content is 70.76%, and the rate of recovery is 135.05%, and the chats productive rate that is back to thickening cone is 22.42%, SrSO
4Content is 55.23%, and the rate of recovery is 30.77%; The selected foam mineral products rate of level Four is 61.81%, SrSO
4Content is 73.36%, and the rate of recovery is 112.69%, and being back to the selected chats productive rate of one-level is 13.85%, SrSO
4Content is 59.16%, and the rate of recovery is 20.36%; The selected froth concentrate productive rate of Pyatyi is 37.82%～42.09%, SrSO
4Content is 75.75%～80.10%, and the rate of recovery is 75.17%～79.59%, and being back to three grades of selected chats productive rates is 21.71%, SrSO
4Content is 68.21%, and the rate of recovery is 36.80%.
Claims (4)
1, a kind of desliming one floatation celestite inished ore process comprises broken process, rod milling operation, flotation operation, enrichment process, one section desliming operation and two sections desliming operations; The flotation operation comprises: roughly select operation, scan operation, sweep selected operation, the selected operation of one-level, the selected operation of secondary, three grades of selected operations, the selected operation of level Four, the selected operation of Pyatyi;
It is characterized in that: a) described rod milling operation is to be a 5mm with granularity, SrSO
4The raw ore of grade 44.34% wears into granularity and is-0.015～-the desliming granularity of 0.020mm;
B) described classification overflow operation is with sand pump placer to be delivered to desliming bucket (8) to carry out first section desliming;
C) described desliming operation is that placer is carried out first section desliming at desliming bucket (8), and the gravity flow of its desliming sand setting enters desliming bucket (9) and carries out second section desliming, through two sections deslimings remove-to get productive rate be 77.44% to the sludge of 0.019mm, SrSO
4Content is 47.60%, the rate of recovery is 93.23% sand setting;
D) described screw classifying operation is formed the closed circuit grinding system by ball mill and spiral classifier and ore is milled to-200 orders and accounts for 95%～99% ore milling product;
E) described enrichment process is the ore milling product behind the screw classifying to be raised with sand pump deliver to the desliming bucket pulp density is brought up to 25%～35%, ore being delivered to tank diameter (11), to add concentration be 10% dispersion medicament waterglass again, and ore pulp enters tank diameter (12), and to add concentration be 5% the compound collecting medicament of alkyl RQX3;
F) described roughing flotation operation is that the ore pulp that will stir through dosing enters flotation device and carries out roughing flotation;
G) the described operation of scanning is the mine tailing behind the roughing flotation to be entered in the double flute flotation cell to add concentration be that 10% dispersion medicament waterglass, concentration are that 5% the compound collecting medicament of alkyl RQX3 scans;
H) described sweep selected operation be with scan the back ore pulp enter sweep in single groove flotation cell selected;
I) described one-level is selected be with the foam ore deposit of roughing flotation and the selected chats of level Four enter add in the double flute flotation cell concentration be carry out behind 10% the dispersion medicament waterglass selected;
J) described secondary is selected is that the foam ore deposit that one-level is selected enters in single groove flotation cell and to add concentration to be that 10% dispersion medicament waterglass carries out secondary selected;
K) described three grades selected be with selected 2 foam ore deposit and the selected chats of Pyatyi enter add in single groove flotation cell concentration be 10% inhibition medicament sodium carbonate, concentration be 1% inhibition medicament calgon enter three grades selected;
L) the selected operation of described level Four is three grades of selected foam ore deposits to be entered in single groove flotation cell add concentration to be that 1% inhibition medicament calgon carries out level Four selected;
M) the selected operation of described Pyatyi is that the foam ore deposit that level Four is selected enters in single groove flotation cell and to add concentration to be that 1% inhibition medicament calgon enters Pyatyi selected.
2, desliming-floatation celestite inished ore process according to claim 1, it is characterized in that: the foam of described each flotation operation is successively from flowing to next operation, selected being back to the selected chats of secondary of one-level scanned operation, three grades of selected chats and sweep selected foam and return thickening cone and return after concentrated and roughly select operation, the selected chats of level Four is back to the selected operation of one-level, the selected chats of Pyatyi returns three grades of selected operations, and concentrate is final products; Scanning and sweep selected ore discharge discharges as flotation tailing; Sweep selected concentrate and return thickening cone continuation operation with three grades of selected chats; The chats that one-level is selected, secondary is selected enters to be scanned, and the next stage flotation is continued in the foam ore deposit.
3, desliming-floatation celestite inished ore process as claimed in claim 1 or 2 is characterized in that: described flotation temperature is: 25 ℃～30 ℃; It is 5000Kg/t that described tank diameter (11) disperses medicament waterglass addition; The compound collecting medicament of tank diameter (12) alkyl RQX3 addition is 1320Kg/t; It is 1330Kg/t that roughing flotation disperses medicament waterglass addition; Scanning dispersion medicament waterglass addition is 630Kg/t, and the compound collecting medicament of alkyl RQX3 addition is 310Kg/t; The selected dispersion medicament of one-level waterglass addition is 1050Kg/t; The selected inhibition medicament of secondary sodium carbonate addition is 260Kg/t, and the calgon addition is 105Kg/t; Three grades of selected inhibition medicament calgon additions are 53Kg/t; The selected inhibition medicament of level Four calgon addition is 32Kg/t.
4, desliming-floatation celestite inished ore process according to claim 3 is characterized in that: the productive rate of described raw ore after two sections deslimings is 21.655, SrSO
4Content is 37.10%, and the rate of recovery is 19.96%; Productive rate behind the roughing flotation is 22.56%, SrSO
4Content is 19.32%, and the rate of recovery is 10.83%; The productive rate of scanning the back chats is 42.77%, SrSO
4Content is 40.73%, and the rate of recovery is 43.29%; The productive rate of sweeping selected back chats is 29.26%, SrSO
4Content is 48.61%, and the rate of recovery is 35.35%; The selected foam mineral products rate of one-level is 93.71%, SrSO
4Content is 63.41%, and the rate of recovery is 147.67%, and being back to the chats productive rate of scanning is .24.79%, SrSO
4Content is 32.19%, and the rate of recovery is 19.83%; The selected foam mineral products rate of secondary is 76.37%, SrSO
4Content is 66.93%, and the rate of recovery is 127.02%, and being back to the chats productive rate of scanning is 17.34%, SrSO
4Content is 47.91%, and the rate of recovery is 20.65%; Three grades of selected foam mineral products rates are 75.66%, SrSO
4Content is 70.76%, and the rate of recovery is 135.05%, and the chats productive rate that is back to thickening cone is 22.42%, SrSO
4Content is 55.23%, and the rate of recovery is 30.77%; The selected foam mineral products rate of level Four is 61.81%, SrSO
4Content is 73.36%, and the rate of recovery is 112.69%, and being back to the selected chats productive rate of one-level is 13.85%, SrSO
4Content is 59.16%, and the rate of recovery is 20.36%; The selected froth concentrate productive rate of Pyatyi is 37.82%～42.09%, SrSO
4Content is 75.75%～80.10%, and the rate of recovery is 75.1 7%～79.59%, and being back to three grades of selected chats productive rates is 21.71%, SrSO
4Content is 68.21%, and the rate of recovery is 36.80%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CNB2005100216134A CN1321746C (en) | 2005-09-02 | 2005-09-02 | Deslim-floatation celestite inished ore process |
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| CNB2005100216134A CN1321746C (en) | 2005-09-02 | 2005-09-02 | Deslim-floatation celestite inished ore process |
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| CN1765519A CN1765519A (en) | 2006-05-03 |
| CN1321746C true CN1321746C (en) | 2007-06-20 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101850306A (en) * | 2010-05-29 | 2010-10-06 | 山东黄金矿业（玲珑）有限公司 | Method for increasing floatation recovery rate by improving floatation technique |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102060317B (en) * | 2010-10-11 | 2012-07-11 | 重庆新申世纪化工有限公司 | Method for recovering celestite from waste residue in strontium carbonate production by celestite back salt method |
| CN102069036B (en) * | 2010-11-12 | 2012-10-03 | 山东乾舜矿冶科技股份有限公司 | Method for recycling waste magnesia carbon brick |
| CN102716807B (en) * | 2012-06-20 | 2013-09-18 | 南京金焰锶业有限公司 | Ore dressing method for strontium ore deposit |
| CN105880033B (en) * | 2014-10-13 | 2020-07-21 | 重庆永润新材料有限公司 | Sectional flotation method for carbon and sulfur containing fine sand |
| CN105583085B (en) * | 2014-10-13 | 2020-07-21 | 重庆永润新材料有限公司 | Flotation method for recovering sulfur and aluminum from low-aluminum-silicon-ratio aluminum trihydrate tailings |
| CN109806966B (en) * | 2019-02-21 | 2021-11-16 | 中国地质科学院矿产综合利用研究所 | Beneficiation method for comprehensively recovering strontium minerals from rare earth tailings |
| CN112718253A (en) * | 2020-12-07 | 2021-04-30 | 震赛(嘉兴)智能科技有限公司 | Application of metallurgical surfactant |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3830366A (en) * | 1972-03-24 | 1974-08-20 | American Cyanamid Co | Mineral flotation with sulfosuccinamate and depressent |
| US4043902A (en) * | 1975-06-06 | 1977-08-23 | American Cyanamid Company | Tri-carboxylated and tetra-carboxylated fatty acid aspartates as flotation collectors |
| JPS5523055A (en) * | 1978-08-04 | 1980-02-19 | Honjiyou Chem Kk | Production of strontium carbonate |
| ES8706843A1 (en) * | 1986-05-13 | 1987-07-01 | Garces De Los Fayos Tournan Ed | Enrichment of celestine in strontium |
-
2005
- 2005-09-02 CN CNB2005100216134A patent/CN1321746C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3830366A (en) * | 1972-03-24 | 1974-08-20 | American Cyanamid Co | Mineral flotation with sulfosuccinamate and depressent |
| US4043902A (en) * | 1975-06-06 | 1977-08-23 | American Cyanamid Company | Tri-carboxylated and tetra-carboxylated fatty acid aspartates as flotation collectors |
| JPS5523055A (en) * | 1978-08-04 | 1980-02-19 | Honjiyou Chem Kk | Production of strontium carbonate |
| ES8706843A1 (en) * | 1986-05-13 | 1987-07-01 | Garces De Los Fayos Tournan Ed | Enrichment of celestine in strontium |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101850306A (en) * | 2010-05-29 | 2010-10-06 | 山东黄金矿业（玲珑）有限公司 | Method for increasing floatation recovery rate by improving floatation technique |
| CN101850306B (en) * | 2010-05-29 | 2012-09-19 | 山东黄金矿业（玲珑）有限公司 | Method for increasing floatation recovery rate by improving floatation technique |
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| CN1765519A (en) | 2006-05-03 |
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