CN105057114B - Floating method of tungsten tin minerals - Google Patents
Floating method of tungsten tin minerals Download PDFInfo
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- CN105057114B CN105057114B CN201510481043.0A CN201510481043A CN105057114B CN 105057114 B CN105057114 B CN 105057114B CN 201510481043 A CN201510481043 A CN 201510481043A CN 105057114 B CN105057114 B CN 105057114B
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Abstract
A floating method of tungsten tin minerals comprises the following steps that (1), after raw materials are evenly mixed, the pH is adjusted to be 9-10 through sodium carbonate; (2) lead nitrate is added for activating tungsten tin hard to float; (3), water glass and sodium hexametaphosphate are added for restraining floating of gangue impurity minerals; and (4), new collector benzyl hydroxyl oxime acid is added, and a mechanical stirring type floating machine is used for floating the tungsten tin. By the adoption of the method, tungsten concentrate and tin concentrate with the recycling rate higher than that of a common floating and gravity concentration technique of fatty acid and carboxylic acid collectors.
Description
Technical field
The present invention relates to a kind of method for floating of tungsten tin mine thing, especially for using gravity separation method and conventional collecting agent flotation
The tungsten tin for reclaiming is difficult to, using collecting agent benzyl hydroximic acid flotation of tungsten tin, tungsten Tin concentrate grade and the tungsten tin rate of recovery can be improved.
Background technology
Scheelite and cassiterite are most common tungsten tin mine things, and its proportion is larger but matter is crisp, the easy mistake during exploitation is sorted
Honed crushing, considerable influence is brought to ore dressing process, and it is the world to prevent the excessively honed crushing of tungsten tin mine thing and microfine tungsten tin from sorting
The generally acknowledged technical barrier of ore dressing field.Tungsten tin mine ore dressing selects coarse-grained tungsten-tin frequently with gravity separation method, but to grade -0.074mm
Particulate tungsten tin or grade -0.010mm content of the content up to more than 90% are reclaimed up to more than 40% microfine tungsten tin using gravity separation method
Effect is undesirable, and the tungsten tin rate of recovery is low.And the tungsten tin mine thing for using floatation to reclaim, preferable sorting index can be obtained.
The content of the invention
It is an object of the invention to provide a kind of method for floating of tungsten tin mine thing, using benzyl hydroximic acid collecting agent, can
Improve the hydrophobicity of tungsten tin mine thing, strengthen its floatability, collecting ability selectively good to tungsten tin mine thing is strong, using mechanical agitation
Formula flotation device in the case where concentrate quality is close, can obtain than conventional collecting agent more high-recovery tungsten tin mine thing emersion
Tungsten Tin concentrate.
The technical scheme is that：A kind of method for floating of tungsten tin mine thing, Sn contents are 0.35 in raw mineral materials used
~1.26%, WO3Content is that 0.70~1.43%, Sn mainly exists with Fine cassiterite, and its disseminated grain size is thinner, -0.074mm
Level tin metal occupation rate 90~92%, wherein -0.010mm grade tin metals occupation rate 40~55%, specific steps and medicament system
Degree is as follows：
(1) pH to 9~10 is adjusted after material is mixed with sodium carbonate；
(2) the difficult floating tungsten tin of addition plumbi nitras activation；
(3) addition waterglass and calgon suppress gangue mineral floating；
(4) new collector benzyl hydroximic acid is added, with agitation impeller flotator by tungsten tin emersion；
(5) the total consumption of medicament is：
Sodium carbonate：1000~1500g/t,
Plumbi nitras：100~150g/t,
Waterglass：800~1200g/t,
Calgon：400~800g/t,
Benzyl hydroximic acid：500~1000g/t.
When medicament is used, following weight % concentration is first configured to：
Sodium carbonate：5% aqueous solution
Plumbi nitras：1% aqueous solution
Waterglass：5% aqueous solution
Calgon：5% aqueous solution
Benzyl hydroximic acid：1% aqueous solution.
Unless otherwise indicated, percentage of the present invention is mass percent, and each component content percentage sum is
100%.
It is of the invention to have the prominent advantages that：
1st, to tungsten tin mine thing, especially microfine tungsten tin mine thing has stronger collecting ability and selectivity to benzyl hydroximic acid,
It is more stronger than conventional collecting agent collecting ability, the recovery rate in ore-dressing of tungsten tin can be greatly improved.
2nd, benzyl hydroximic acid consumption is small, soluble in water, corrosion-free, pollution-free.
Specific embodiment
Technical scheme is described further by the following examples.
Embodiment 1
One example of the method for floating of tungsten tin mine thing of the present invention, comprises the following steps：
1st, raw mineral materials
Raw material grade WO30.37%th, Sn 0.40%.Process mineralogy research shows：Sn is main to be existed with Fine cassiterite,
Its disseminated grain size is thinner, -0.074mm grades WO3Metal occupation rate 91%, tin metal occupation rate 90%.
2nd, floating agent and operating condition：
After sample ore is stirred and evenly mixed first, pH regulator sodium carbonate 1500g/t (pH=10), activator nitric acid are separately added into
Lead 150g/t, inhibitor waterglass 1000g/t, calgon 600g/t, new collector benzyl hydroximic acid 1000g/t, adopt
The closed circuit technological process flotation particulate of flotation and micro fine particle are swept with thick four essence three, tungsten tin bulk concentrate yield is obtained
0.65%th, grade WO345.68%th, Sn 49.42%, rate of recovery WO381.02%th, Sn 80.17%.It is close in Tin concentrate grade
In the case of, compared with conventional collecting agent flotation, WO37.82 and 8.44 percentage points are respectively increased with the Sn rate of recovery；With gravity treatment
Technique is compared, WO315.48 and 16.37 percentage points are respectively increased with the Sn rate of recovery.
Embodiment 2
Another example of the method for floating of tungsten tin mine thing of the present invention, comprises the following steps：
1st, raw mineral materials
Raw material WO3Grade 1.43%, Sn grades 1.26%.Process mineralogy research shows：Tungsten based on scheelite, tin master
To exist with cassiterite, its disseminated grain size is thinner, -0.074mm grades WO3Metal occupation rate 89%, Sn metals occupation rate 92%.
2nd, floating agent and operating condition：
After sample ore is stirred and evenly mixed first, pH regulator sodium carbonate 1000g/t (pH=9), activator nitric acid are separately added into
Lead 100g/t, inhibitor waterglass 600g/t, calgon 400g/t, new collector benzyl hydroximic acid 500g/t, use
One thick four essence four sweeps the closed circuit technological process flotation particulate of flotation and micro fine particle, obtains concentrate yield 2.28%, grade
WO352.63%th, Sn 45.62%, rate of recovery WO383.91%th, Sn82.55%.In the case where concentrate tungsten tin grade is close, with
Conventional collecting agent flotation is compared, WO36.23 and 7.15 percentage points are respectively increased with the Sn rate of recovery；Compared with gravity separation technology, WO3
15.64 and 13.47 percentage points are respectively increased with the Sn rate of recovery.
Embodiment 3
Another example of the method for floating of tungsten tin mine thing of the present invention, comprises the following steps：
1st, raw mineral materials
Raw material grade WO30.46%th, Sn 0.33%.Process mineralogy research shows：Tungsten is based on scheelite, and tin is main
Exist with cassiterite, its disseminated grain size is thinner, -0.074mm grades WO3Metal occupation rate 86%, Sn metals occupation rate 93%.
2nd, floating agent and operating condition：
After sample ore is stirred and evenly mixed first, pH regulator sodium carbonate 1200g/t (pH=9.5), activator nitre are separately added into
Lead plumbate 120g/t, inhibitor waterglass 800g/t, calgon 400g/t, new collector benzyl hydroximic acid 800g/t, adopt
The closed circuit technological process flotation particulate scheelite of flotation is swept with thick four essence four, concentrate yield 0.87%, grade is obtained
WO343.68%th, Sn 30.42%, rate of recovery WO382.73%th, Sn 79.23%.In the case where concentrate tungsten tin grade is close,
Compared with conventional collecting agent flotation, WO36.23 and 7.15 percentage points are respectively increased with the Sn rate of recovery；Compared with gravity separation technology,
WO315.64 and 13.47 percentage points are respectively increased with the Sn rate of recovery.
Claims (2)
1. a kind of method for floating of tungsten tin mine thing, it is characterised in that：Sn contents are 0.35~1.26%, WO in raw mineral materials used3
Content is that 0.70~1.43%, Sn mainly exists with Fine cassiterite, and its disseminated grain size is thinner, and -0.074mm grade tin metals are occupied
Rate 90~92%, wherein -0.010mm grade tin metals occupation rate 40~55%, specific steps and regime of agent are as follows：
（1）After material is mixed pH to 9 ~ 10 is adjusted with sodium carbonate；
（2）The difficult floating tungsten tin of addition plumbi nitras activation；
（3）Addition waterglass and calgon suppress gangue mineral and float；
（4）Addition collecting agent benzyl hydroximic acid, with agitation impeller flotator by tungsten tin emersion；
（5）The total consumption of medicament is：
Sodium carbonate：1000 ~ 1500g/t,
Plumbi nitras：100 ~ 150 g/t,
Waterglass：800 ~ 1200 g/t,
Calgon：400 ~ 800g/t,
Benzyl hydroximic acid：500~1000 g/t.
2. the method for floating of tungsten tin mine thing according to claim 1, it is characterised in that when medicament is used, be first configured to
Lower weight % concentration：
Sodium carbonate：5% aqueous solution
Plumbi nitras：1% aqueous solution
Waterglass：5% aqueous solution
Calgon：5% aqueous solution
Benzyl hydroximic acid：1% aqueous solution.
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| CN201510481043.0A CN105057114B (en) | 2015-08-07 | 2015-08-07 | Floating method of tungsten tin minerals |
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| CN105057114B true CN105057114B (en) | 2017-05-24 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108114818A (en) * | 2017-11-17 | 2018-06-05 | 北京有色金属研究总院 | A kind of method from white Tungsten smelting slag flotation recycling tungsten tin |
| CN109127120B (en) * | 2018-07-04 | 2020-05-05 | 广东省资源综合利用研究所 | Beneficiation method for tungsten-tin ore |
| CN110038727B (en) * | 2019-04-19 | 2021-12-17 | 北京矿冶科技集团有限公司 | Separation method of scheelite and stannic oxide bulk concentrates |
| CN111438001A (en) * | 2020-03-27 | 2020-07-24 | 云南锡业研究院有限公司 | Method for flotation separation of iron oxide ore in cassiterite sulphide ore mud ore by using combined inhibitor |
| CN112264195B (en) * | 2020-11-18 | 2021-10-12 | 东北大学 | Cassiterite mineral flotation inhibitor and application thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4213942A (en) * | 1978-01-23 | 1980-07-22 | Groupe Minier Sullivan Ltee/Sullivan Mining Group Ltd. | Process for the concentration of mineral by flotation process |
| CN102172559A (en) * | 2010-12-29 | 2011-09-07 | 昆明冶金研究院 | Tungsten and tin recovery concentration method combining centrifugal concentration with floatation |
| CN104646188A (en) * | 2015-01-09 | 2015-05-27 | 临武县南方矿业有限责任公司 | Cassiterite flotation agent composition |
-
2015
- 2015-08-07 CN CN201510481043.0A patent/CN105057114B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4213942A (en) * | 1978-01-23 | 1980-07-22 | Groupe Minier Sullivan Ltee/Sullivan Mining Group Ltd. | Process for the concentration of mineral by flotation process |
| CN102172559A (en) * | 2010-12-29 | 2011-09-07 | 昆明冶金研究院 | Tungsten and tin recovery concentration method combining centrifugal concentration with floatation |
| CN104646188A (en) * | 2015-01-09 | 2015-05-27 | 临武县南方矿业有限责任公司 | Cassiterite flotation agent composition |
Non-Patent Citations (2)
| Title |
|---|
| 2012年浮选药剂的进展;朱建光等;《矿产综合利用》;20130630(第3期);第1-8页 * |
| 水杨氧肟酸浮选钨锡细泥中锡的试验研究;邱廷省等;《矿产综合利用》;19980430(第2期);第4-6页 * |
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