CN105195334A - Magnesium-rich silicate mineral flotation inhibitor and preparation method and application thereof - Google Patents
Magnesium-rich silicate mineral flotation inhibitor and preparation method and application thereof Download PDFInfo
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- CN105195334A CN105195334A CN201510717587.2A CN201510717587A CN105195334A CN 105195334 A CN105195334 A CN 105195334A CN 201510717587 A CN201510717587 A CN 201510717587A CN 105195334 A CN105195334 A CN 105195334A
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- mannosan
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Abstract
The invention provides a magnesium-rich silicate mineral flotation inhibitor, which comprises the following components in parts by weight: 2-30 parts of mannan, 5-25 parts of sodium gluconate and 5-15 parts of sodium tripolyphosphate; the mannan is one of konjac glucomannan and aloe mannan. The invention also provides a method for preparing the inhibitor. The invention also provides application of the inhibitor in inhibiting magnesium-rich silicate minerals in a flotation process.
Description
Technical field
The invention belongs to technical field of beneficiation, be specifically related to a kind of rich magnesium silicate mineral floating inhibitor and its preparation method and application.
Background technology
China's nickel ores resource is mainly the low-grade copper nickel sulfide ore being rich in MgO silicate gangue mineral, as serpentine, talcum, chlorite, the tremolite etc., these rich magnesium silicate mineral are in floatation process, not only argillization is serious, and self or " heterocoagulation " floatability is fabulous afterwards, thus severe jamming flotation, and bring difficulty to follow-up concentrate.
For a long time, around cu-ni sulphide ore flotation concentrate, magnesium problem is fallen, relevant colleges and universities, scientific research institutions both at home and abroad, and the engineers and technicians of industrial enterprise have done a large amount of research work, also have developed the depressing agent of the multiple rich magnesium silicate mineral such as sodium carboxymethylcellulose (CMC), waterglass, calgon, sodium humate, tannic acid, tannin extract, but practice shows, the effect of these inhibitor is unsatisfactory.
Summary of the invention
For the shortcoming of prior art, an object of the present invention is to provide a kind of rich magnesium silicate mineral floating inhibitor, this inhibitor is nontoxic, wide material sources not only, and under inhibiting situation is not produced to sulphide ore, effectively can suppress gangue mineral, thus under the prerequisite not affecting the flotation concentrate rate of recovery, the content of MgO in effective reduction concentrate, this inhibitor by weight, comprising:
Mannosan 2 ~ 30 parts;
Gluconic acid sodium salt 5 ~ 25 parts;
Sodium phosphate trimer 5 ~ 15 parts;
Described mannosan is the one in konjak glucomannan, aloe mannosan.
The present inventor gropes to find through a large amount of tests, and gluconic acid sodium salt and sodium phosphate trimer can change the surface electrical behavior of rich magnesium silicate mineral, eliminates " heterocoagulation ", eliminates the impact of activating ion in ore pulp simultaneously.On this basis, after adding konjak glucomannan or aloe mannosan, the pleasantly surprised discovery of inventor its can reach the object comprehensively suppressing rich magnesium silicate mineral.Therefore, inhibitor of the present invention effectively can improve floatation indicators.What is more important, the present invention can obtain content of MgO not higher than 6% nickel ore concentrate.
Preferably, when processing copper nickel sulfide mineral (namely gangue mineral is based on serpentine, chlorite, the tremolite) for weak alteration, described inhibitor by weight, comprising:
Mannosan 2 ~ 10 parts;
Gluconic acid sodium salt 10 ~ 25 parts;
Sodium phosphate trimer 5 ~ 15 parts;
Described mannosan is the one in konjak glucomannan, aloe mannosan.
Preferably, when processing copper nickel sulfide mineral (namely the further alteration of serpentine becomes talcum) of strong alteration, described inhibitor by weight, comprising:
Mannosan 10 ~ 30 parts;
Gluconic acid sodium salt 5 ~ 20 parts;
Sodium phosphate trimer 5 ~ 10 parts;
Described mannosan is the one in konjak glucomannan, aloe mannosan.
Preferably, described inhibitor by weight, is made up of following component: aloe mannosan 5 parts, gluconic acid sodium salt 15 parts, sodium phosphate trimer 10 parts.
Preferably, described inhibitor by weight, is made up of following component: konjak glucomannan 5 parts, gluconic acid sodium salt 15 parts, sodium phosphate trimer 5 parts.
Preferably, described inhibitor by weight, is made up of following component: konjak glucomannan 25 parts, gluconic acid sodium salt 10 parts, sodium phosphate trimer 5 parts.
Another object of the present invention is to provide the method preparing above-mentioned inhibitor, and the method comprises the steps:
1) by weight, prepare mannosan 2 ~ 30 parts, gluconic acid sodium salt 5 ~ 25 parts, sodium phosphate trimer 5 ~ 15 parts, and mix; Described mannosan is the one in konjak glucomannan, aloe mannosan;
2) take the water of step 1) raw material total weight parts 50 ~ 100 times, be heated to more than 80 DEG C, then step 1) raw material is slowly added uniformly, constantly stir simultaneously, make it fully dissolve.
Another object of the present invention is to provide the application of described inhibitor on rich magnesium silicate mineral floating, it is characterized in that, the consumption of described inhibitor is 300-400g/t.
Beneficial effect of the present invention:
1, not only raw material sources are wide, cheap for inhibitor of the present invention, and low-consuming (being only 50% of conventional dose consumption), preparation are simple, are beneficial to commercial Application;
2, inhibitor of the present invention has good selective effect, while the rich magnesium silicate mineral of suppression, can not affect the flotation of valuable mineral;
3, floatation indicators of the present invention is high, and concentrate content of MgO is not higher than 6%.
Detailed description of the invention
Below by embodiment, the present invention is specifically described; what be necessary to herein means out is that following examples are just for being further detailed the present invention; limiting the scope of the invention can not be interpreted as; some nonessential improvement and adjustment that the person skilled in the art in this field makes according to foregoing invention content, still belong to protection scope of the present invention.
Embodiment 1
1) by weight, konjak glucomannan 5 parts, gluconic acid sodium salt 15 parts, sodium phosphate trimer 5 parts is taken, mixing;
2) by weight, take the water of 2500 parts, be heated to 85 DEG C, then step 1) raw material is slowly added uniformly, constantly stir simultaneously, make it fully dissolve, obtain the inhibitor solution of mass concentration 1%.
Embodiment 2
1) by weight, aloe mannosan 5 parts, gluconic acid sodium salt 15 parts, sodium phosphate trimer 10 parts is taken, mixing;
2) by weight, take the water of 2000 parts, be heated to 85 DEG C, then step 1) raw material is slowly added uniformly, constantly stir simultaneously, make it fully dissolve, obtain the inhibitor solution of mass concentration 1.5%.
Embodiment 3
1) by weight, konjak glucomannan 25 parts, gluconic acid sodium salt 10 parts, sodium phosphate trimer 5 parts is taken, mixing;
2) by weight, take the water of 2000 parts, be heated to 90 DEG C, then step 1) raw material is slowly added uniformly, constantly stir simultaneously, make it fully dissolve, obtain the inhibitor solution of mass concentration 2%.
Embodiment 4
1) by weight, aloe mannosan 2 parts, gluconic acid sodium salt 5 parts, sodium phosphate trimer 5 parts is taken, mixing;
2) by weight, take the water of 1200 parts, be heated to 85 DEG C, then step 1) raw material is slowly added uniformly, constantly stir simultaneously, make it fully dissolve, obtain the inhibitor solution of mass concentration 1%.
Embodiment 5
1) by weight, konjak glucomannan 30 parts, gluconic acid sodium salt 25 parts, sodium phosphate trimer 15 parts is taken, mixing;
2) by weight, take the water of 3500 parts, be heated to 95 DEG C, then step 1) raw material is slowly added uniformly, constantly stir simultaneously, make it fully dissolve, obtain the inhibitor solution of mass concentration 2%.
Test example 1
Sichuan low grade copper-nickel sulphide ores, nickel grade 0.43%, copper grade 0.17%, gangue mineral is mainly serpentine, pyroxene, and be secondly olivine, chlorite, talcum, raw ore MgO total content is 25.60%.Under the condition of mog-200 order 55%, add the inhibitors 4 00g/t of the embodiment of the present invention 1 and corresponding collecting agent and foaming agent, sweep the flotation process of three essences through one thick two, can obtain nickel grade 7.5%, nickel recovery 78%, containing MgO only 5.5% nickel ore concentrate.Only adopt sodium carboxymethylcellulose (CMC) as compared with inhibitor with production scene, concentrate nickel grade improves more than 1.5%, nickel recovery improves more than 5%, content of MgO reduces more than 2% simultaneously.
Test example 2
Gansu low grade copper-nickel sulphide ores, nickel grade 0.54%, copper grade 0.38%, gangue mineral is mainly serpentine, chlorite, the tremolite, and be secondly talcum, olivine, raw ore MgO total content is 24.66%.Under the condition of mog-200 order 82.5%, add the inhibitors 4 00g/t of the embodiment of the present invention 2 and corresponding collecting agent and foaming agent, sweep the flotation process of three essences through one thick two, nickel grade 7.8%, nickel recovery 73%, nickel ore concentrate containing MgO6% can be obtained.Only adopt calgon as compared with inhibitor with production scene, concentrate nickel grade improves more than 3%, nickel recovery improves more than 3%, content of MgO reduces more than 5% simultaneously.
Test example 3
Sichuan middle-low grade copper nickel sulfide mineral, nickel grade 0.78%, copper grade 0.35%, main gangue mineral is talcum, and secondary is serpentine, amphibole, chlorite, and raw ore MgO total content is up to 27.50%.Under the condition of mog-200 order 84.6%, add the inhibitor 300g/t of the embodiment of the present invention 3 and corresponding collecting agent and foaming agent, sweep the flotation process of three essences through one thick two, nickel grade 7.4%, nickel recovery 80%, nickel ore concentrate containing MgO5.8% can be obtained.Adopt sodium carboxymethylcellulose (CMC) to compare as inhibitor with waterglass with production scene, concentrate nickel recovery improves more than 10%, and content of MgO reduces more than 4% simultaneously, and index increase rate clearly.
Claims (8)
1. a rich magnesium silicate mineral floating inhibitor, it is characterized in that, described inhibitor by weight, comprising:
Mannosan 2 ~ 30 parts;
Gluconic acid sodium salt 5 ~ 25 parts;
Sodium phosphate trimer 5 ~ 15 parts;
Described mannosan is the one in konjak glucomannan, aloe mannosan.
2. inhibitor according to claim 1, is characterized in that, described inhibitor by weight, comprising:
Mannosan 2 ~ 10 parts;
Gluconic acid sodium salt 10 ~ 25 parts;
Sodium phosphate trimer 5 ~ 15 parts;
Described mannosan is the one in konjak glucomannan, aloe mannosan.
3. inhibitor according to claim 1, is characterized in that, described inhibitor by weight, comprising:
Mannosan 10 ~ 30 parts;
Gluconic acid sodium salt 5 ~ 20 parts;
Sodium phosphate trimer 5 ~ 10 parts;
Described mannosan is the one in konjak glucomannan, aloe mannosan.
4. inhibitor according to claim 1, is characterized in that, described inhibitor by weight, is made up of following component: aloe mannosan 5 parts, gluconic acid sodium salt 15 parts, sodium phosphate trimer 10 parts.
5. inhibitor according to claim 1, is characterized in that, described inhibitor by weight, is made up of following component: konjak glucomannan 5 parts, gluconic acid sodium salt 15 parts, sodium phosphate trimer 5 parts.
6. inhibitor according to claim 1, is characterized in that, described inhibitor by weight, is made up of following component: konjak glucomannan 25 parts, gluconic acid sodium salt 10 parts, sodium phosphate trimer 5 parts.
7. prepare the method for inhibitor as claimed in claim 1, it is characterized in that, described method comprises the steps:
1) by weight, prepare mannosan 2 ~ 30 parts, gluconic acid sodium salt 5 ~ 25 parts, sodium phosphate trimer 5 ~ 15 parts, and mix; Described mannosan is the one in konjak glucomannan, aloe mannosan;
2) take the water of step 1) raw material total weight parts 50 ~ 100 times, be heated to more than 80 DEG C, then step 1) raw material is slowly added uniformly, constantly stir simultaneously, make it fully dissolve.
8. the application of inhibitor described in any one of claim 1-6 on rich magnesium silicate mineral floating, is characterized in that, the consumption of described inhibitor is 300-400g/t.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510717587.2A CN105195334B (en) | 2015-10-30 | 2015-10-30 | Magnesium-rich silicate mineral flotation inhibitor and preparation method and application thereof |
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| CN201510717587.2A CN105195334B (en) | 2015-10-30 | 2015-10-30 | Magnesium-rich silicate mineral flotation inhibitor and preparation method and application thereof |
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| CN105195334B CN105195334B (en) | 2017-09-12 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111036414A (en) * | 2019-11-28 | 2020-04-21 | 东北大学 | Method for flotation decalcification of magnesite by using inhibitor STPP |
| CN114832948A (en) * | 2022-03-13 | 2022-08-02 | 中南大学 | Flotation depressor, preparation and application thereof |
| CN115318446A (en) * | 2022-08-05 | 2022-11-11 | 中国地质科学院矿产综合利用研究所 | Flotation reagent system for refractory low-grade nickel-cobalt sulfide ore and application thereof |
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| JPS60150856A (en) * | 1984-01-14 | 1985-08-08 | Kobe Steel Ltd | Flotation method of iron ore |
| CN86102011A (en) * | 1986-03-24 | 1987-11-11 | 冶金工业部马鞍山矿山研究院 | Flotation technology for magnesite |
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| CN1037098A (en) * | 1989-06-24 | 1989-11-15 | 鞍山钢铁学院 | A kind of regime of agent of flotation magnesite ore |
| CN102671772A (en) * | 2012-05-29 | 2012-09-19 | 中国地质科学院矿产综合利用研究所 | Dispersion inhibitor for copper-containing waste rock flotation, and preparation method and application thereof |
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2015
- 2015-10-30 CN CN201510717587.2A patent/CN105195334B/en not_active Expired - Fee Related
Patent Citations (5)
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| JPS60150856A (en) * | 1984-01-14 | 1985-08-08 | Kobe Steel Ltd | Flotation method of iron ore |
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| CN1037098A (en) * | 1989-06-24 | 1989-11-15 | 鞍山钢铁学院 | A kind of regime of agent of flotation magnesite ore |
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| 卢毅屏等: "蛇纹石与滑石的同步抑制原理", 《中国有色金属学报》 * |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111036414A (en) * | 2019-11-28 | 2020-04-21 | 东北大学 | Method for flotation decalcification of magnesite by using inhibitor STPP |
| CN114832948A (en) * | 2022-03-13 | 2022-08-02 | 中南大学 | Flotation depressor, preparation and application thereof |
| CN115318446A (en) * | 2022-08-05 | 2022-11-11 | 中国地质科学院矿产综合利用研究所 | Flotation reagent system for refractory low-grade nickel-cobalt sulfide ore and application thereof |
| CN115318446B (en) * | 2022-08-05 | 2024-04-12 | 中国地质科学院矿产综合利用研究所 | Flotation reagent system for refractory low-grade nickel-cobalt sulfide ores and application thereof |
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