CN105057088A - Method for recycling quartz and feldspar mixtures from gold flotation tailings - Google Patents

Method for recycling quartz and feldspar mixtures from gold flotation tailings Download PDF

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Publication number
CN105057088A
CN105057088A CN201510484382.4A CN201510484382A CN105057088A CN 105057088 A CN105057088 A CN 105057088A CN 201510484382 A CN201510484382 A CN 201510484382A CN 105057088 A CN105057088 A CN 105057088A
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China
Prior art keywords
feldspar
flotation
quartz
thick
gold
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CN201510484382.4A
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Chinese (zh)
Inventor
王毓华
兰香平
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Shandong Huasheng Investment Co Ltd
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Shandong Huasheng Investment Co Ltd
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Priority to CN201510484382.4A priority Critical patent/CN105057088A/en
Publication of CN105057088A publication Critical patent/CN105057088A/en
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Abstract

The invention belongs to the technical field of tailing treatment and particularly relates to a method for recycling quartz and feldspar mixtures from gold flotation tailings. A sedimentation desliming method is adopted for removing harmful slime and meanwhile part of iron impurities are removed. Sodium carbonate is adopted for a regulating agent for restraining flotation of quartz and feldspar. YOA is adopted as a collecting agent for obviously removing carbonate mineral impurities in the tailings and part of iron impurities at the same time. The frequency of operation of flotation impurity removal is increased, so that the removing rate of iron and other impurities is obviously increased, and the levels of aluminum oxide and silicon oxide are greatly improved. By the adoption of the method, the recycling rate of recycled quartz and feldspar mixture products is over 75%, and the quality of the products is close to that of second-level feldspar products or glass-level albite products. The process flow of the method is simple, production cost is low, secondary environmental pollution is avoided, and quartz and feldspar resources in the gold flotation tailings can be used to the maximum extent.

Description

A kind of method reclaiming quartz and feldspar mixture from gold flotation tailing
Technical field
The invention belongs to tailings glass technical field, particularly relate to a kind of method reclaiming quartz and feldspar mixture from gold flotation tailing.
Background technology
The gold mine annual outer last person ore deposit amount in Zhaoyuan, shandong area is about more than 600 ten thousand tons.In the time that every weather is drier, tailings is very serious to the pollution of environment.In order to solve flotation tailing to the impact of environment and harm, mainly taking the transformation of Tailings Dam earthing, mine tailing filling at present, producing the measures such as clay brick to alleviate the impact of milltailings on environment.But the valuable mineral of Gong the recycling containing larger composition in gold flotation tailing, its composition is as shown in table 1.
Table 1
Found out by table 1, in gold flotation tailing, the total content of quartz mineral and spectra is up to 85%, and quartz and feldspar can be used as the raw material of glass and ceramic industry.If the comprehensive utilization of quartz and feldspar can be realized, significantly can not only reduce the discharge capacity of gold flotation tailing, and then alleviate the pressure of environmental pollution and tailings reservoir for piling, and the comprehensive utilization of mineral resources can be realized, increase the economic benefit of enterprise.
Learn through experimental study, the main Problems existing of gold flotation tailing has:
1, mine tailing granularity is comparatively thick, and wherein quartz is mainly distributed in medium and coarse fraction, and feldspar is then mainly distributed in fine fraction, and also there is the intergrowth of a small amount of feldspar and quartz etc. in coarse fraction, its sizing the results are shown in Table 2;
Table 2
From table 2, in gold flotation tailing ,-0.074mm grain size content only accounts for the content of 18.01% ,+0.15mm grade then up to 60.98%; In+0.15mm grade, Al 2o 3and SiO 2occupation rate be respectively 64.18% and 59.78%.In addition, in+0.15mm grade, also there is the oversized particles that a small amount of granularity is greater than about 1mm.As can be seen here, the material relatively thick to this granularmetric composition directly carries out flotation, is the more difficult flotation of coarse granule on the one hand, quality and the rate of recovery of floating product can be affected, be under the condition of coarse grain footpath on the other hand, be difficult to dissociate between quartz and feldspar, also can affect floatation indicators.
2, the weathering of mine tailing andesine is serious, and in grinding process, part feldspar also can be formed " secondary sludge ", causes the loss of feldspar in desliming and removing impurities process.
3, in mine tailing containing a certain amount of carbonate and iron mineral and other foreign material, the difficulty of separation and Extraction quartz and feldspar can be increased.
Based on the variety of problems that gold flotation tailing exists, need badly a kind of from gold flotation tailing effectively, high efficiente callback quartz and the method for feldspar.
Summary of the invention
The present invention is directed to the deficiency that above-mentioned prior art exists, a kind of method reclaiming quartz and feldspar mixture from gold flotation tailing is provided.
The technical scheme that the present invention solves the problems of the technologies described above is as follows: a kind of method reclaiming quartz and feldspar mixture from gold flotation tailing, and step is as follows:
(1) ore grinding: gold flotation tailing is milled to fineness and occupies 55%-60% for-0.074mm grain size content;
(2) sedimentation desliming: the mine tailing of step (1) is sized mixing to its concentration be 26.10%, sedimentation desliming 2min;
(3) flotation from miscellaneous: add in flotation device to the mine tailing slurries through desliming, and add 750g/t sodium carbonate and 300g/tYOA, carry out first time flotation, obtains impurity and thick product I respectively; Thick product I is carried out second time flotation, adds the YOA of 200g/t, obtain impurity and thick product II; Thick product II is carried out third time flotation, adds the YOA of 200g/t, obtain impurity and thick product III; Thick product III is carried out the 4th flotation, adds the YOA of 100g/t, obtain the bulk concentrate of quartz and feldspar, its Al 2o 3grade is 13.41%, SiO 2grade is 75.45%, K 2o+Na 2o content is 7.38%, Fe 2o 3content is 0.29%.
Wherein, described YOA be enuatrol with lauryl amine in molar ratio 10:1 mix.
On the basis of technique scheme, the present invention can also do following improvement.
Further, also comprise step (4): the quartz obtain step (3) and the mixture of feldspar add in magnetic separator, and magnetic field intensity is 956KA/m, is separated by iron tramp further.
Adopt the beneficial effect of above-mentioned further scheme to be that the most of iron tramp in mine tailing removes by sedimentation desliming and flotation from miscellaneous, then carries out magnetic separation, a small amount of iron tramp can be removed further, obtain high-quality quartz feldspar mixture.
The invention has the beneficial effects as follows: the present invention adopts sedimentation Desliming method while removing harmful sludge, is also stripped of part iron tramp; Adopt sodium carbonate as adjusting agent, flotation that is quartzy and feldspar is played to the effect of suppression, adopt YOA as collecting agent, be stripped of the carbonate mineral impurity in mine tailing more significantly, part iron tramp is also removed simultaneously; By increasing the operations number of flotation from miscellaneous, the removal efficiency of iron and other impurity obviously increases, and the grade of aluminium oxide and silica is greatly enhanced.The quartzy feldspar product mix that the present invention reclaims, its rate of recovery is up to more than 75%, and its quality is close to the quality requirement of feldspar 2 grades of product or glass level albite product.Technological process of the present invention is simple, and production cost is low, can not produce secondary environmental pollution, and can utilize the quartz in gold flotation tailing and feldspar resource to greatest extent.
Accompanying drawing explanation
Fig. 1 is process chart of the present invention.
Detailed description of the invention
Be described principle of the present invention and feature below in conjunction with example, example, only for explaining the present invention, is not intended to limit scope of the present invention.
Embodiment 1
Adopt the mine tailing that Zhaoyuan, shandong gold mine is arranged outward, therefrom reclaim the method for quartz and feldspar mixture, step is as follows:
(1) ore grinding: gold flotation tailing is milled to fineness and occupies 60% for-0.074mm grain size content;
(2) sedimentation desliming: the mine tailing of step (1) is sized mixing to its concentration be 26.10%, sedimentation desliming 2min;
(3) flotation from miscellaneous: add in flotation device to the mine tailing slurries through desliming, and add 750g/t sodium carbonate and 300g/tYOA, carry out first time flotation, obtains impurity and thick product I respectively; Thick product I is carried out second time flotation, adds the YOA of 200g/t, obtain impurity and thick product II; Thick product II is carried out third time flotation, adds the YOA of 200g/t, obtain impurity and thick product III; Thick product III is carried out the 4th flotation, adds the YOA of 100g/t, obtain the bulk concentrate of quartz and feldspar, its Al 2o 3grade is 13.41%, SiO 2grade is 75.45%, K 2o+Na 2o content is 7.38%, Fe 2o 3content is 0.29%;
Wherein, described YOA be enuatrol with lauryl amine in molar ratio 10:1 mix.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.

Claims (2)

1. from gold flotation tailing, reclaim a method for quartz and feldspar mixture, it is characterized in that, step is as follows:
(1) ore grinding: gold flotation tailing is milled to fineness and occupies 55%-60% for-0.074mm grain size content;
(2) sedimentation desliming: the mine tailing of step (1) is sized mixing to its concentration be 26.10%, sedimentation desliming 2min;
(3) flotation from miscellaneous: add in flotation device to the mine tailing slurries through desliming, and add 750g/t sodium carbonate and 300g/tYOA, carry out first time flotation, obtains impurity and thick product I respectively; Thick product I is carried out second time flotation, adds the YOA of 200g/t, obtain impurity and thick product II; Thick product II is carried out third time flotation, adds the YOA of 200g/t, obtain impurity and thick product III; Thick product III is carried out the 4th flotation, adds the YOA of 100g/t, obtain the bulk concentrate of quartz and feldspar, its Al 2o 3grade is 13.41%, SiO 2grade is 75.45%, K 2o+Na 2o content is 7.38%, Fe 2o 3content is 0.29%;
Described YOA be enuatrol with lauryl amine in molar ratio 10:1 mix.
2. method according to claim 1, is characterized in that, also comprises step (4): the quartz obtain step (3) and the mixture of feldspar add in magnetic separator, and magnetic field intensity is 956KA/m, is separated by iron tramp further.
CN201510484382.4A 2015-08-10 2015-08-10 Method for recycling quartz and feldspar mixtures from gold flotation tailings Pending CN105057088A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105880006A (en) * 2016-03-17 2016-08-24 昆明高斯特科技有限公司 Method for preparing high-quality quartz sand raw material by flat-plate magnetic separator
CN106076650A (en) * 2016-06-14 2016-11-09 蚌埠玻璃工业设计研究院 A kind of quartz mineral purifying and flotation agent
CN109772576A (en) * 2019-01-28 2019-05-21 山东九曲圣基新型建材有限公司 A method of making full use of gold tailings
CN110898955A (en) * 2019-11-06 2020-03-24 乐山市南联环资科技有限责任公司 Process for producing feed additive by using feldspar tailings

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CN102284352A (en) * 2011-08-08 2011-12-21 中南大学 Efficient ore dressing and impurity removal process for potassium and sodium feldspar ores which are complex and difficult to process and combined medicament thereof
CN102441496A (en) * 2011-10-14 2012-05-09 中科翔(天津)科技有限公司 Method for selecting potassium feldspars in potassium-bearing tailings
CN103990541A (en) * 2014-05-14 2014-08-20 中国地质科学院郑州矿产综合利用研究所 Mineral processing technology by utilizing grade difference of potassium feldspar

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CN101885489A (en) * 2010-06-30 2010-11-17 长沙矿冶研究院 Method for preparing feldspar powder concentrate by mineral separation of aeolian sand in desert
CN101898168A (en) * 2010-07-21 2010-12-01 衡阳县湘雁矿业有限公司 Beneficiation method for removing long quarry impurities by adopting strong magnetic flotation
CN102029225A (en) * 2010-09-25 2011-04-27 徐霖 Method for separating feldspar and quartz by two stages of mixing and flotation
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CN102284352A (en) * 2011-08-08 2011-12-21 中南大学 Efficient ore dressing and impurity removal process for potassium and sodium feldspar ores which are complex and difficult to process and combined medicament thereof
CN102441496A (en) * 2011-10-14 2012-05-09 中科翔(天津)科技有限公司 Method for selecting potassium feldspars in potassium-bearing tailings
CN103990541A (en) * 2014-05-14 2014-08-20 中国地质科学院郑州矿产综合利用研究所 Mineral processing technology by utilizing grade difference of potassium feldspar

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105880006A (en) * 2016-03-17 2016-08-24 昆明高斯特科技有限公司 Method for preparing high-quality quartz sand raw material by flat-plate magnetic separator
CN106076650A (en) * 2016-06-14 2016-11-09 蚌埠玻璃工业设计研究院 A kind of quartz mineral purifying and flotation agent
CN106076650B (en) * 2016-06-14 2018-07-10 蚌埠玻璃工业设计研究院 A kind of quartz mineral purifying and flotation agent
CN109772576A (en) * 2019-01-28 2019-05-21 山东九曲圣基新型建材有限公司 A method of making full use of gold tailings
CN110898955A (en) * 2019-11-06 2020-03-24 乐山市南联环资科技有限责任公司 Process for producing feed additive by using feldspar tailings

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Application publication date: 20151118