CN1507953A - Process for flotation of silica sand in alkaline medium - Google Patents
Process for flotation of silica sand in alkaline medium Download PDFInfo
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- CN1507953A CN1507953A CNA021567468A CN02156746A CN1507953A CN 1507953 A CN1507953 A CN 1507953A CN A021567468 A CNA021567468 A CN A021567468A CN 02156746 A CN02156746 A CN 02156746A CN 1507953 A CN1507953 A CN 1507953A
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- flotation
- silica sand
- floatation
- feldspar
- agent
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Abstract
The present invention relates to a new process for silica sand floatation, and is applicable to felspar-contained silica sand floatation, and its technical key lies in that before the floatation and separation of felspar and quartz the silica sand is pretreated to make silica sand granules can fully produce action with floatation agent and can raise the separation property of felspar and quartz. Said floatation adopts the new floatation agent defined by said invention, and does not use acid as floatation medium, and said floatation can be made in alkaline medium.
Description
Name of the present invention is called " flotation silica sand new technology in the alkaline medium ".
One, technical field:
The invention relates to the technology of silica sand flotation, be applicable to the flotation that contains the feldspar natural silica Sand.With the feldspathic natural silica Sand of this method flotation, feldspar is separated well with quartz, produce high grade quartz sand, for float glass industry provides high-quality siliceous raw material.
Two, background technology:
China's natural silica Sand major part is feldspathic silica sand, SiO
2Content is low, Al
2O
3And Fe
2O
3The content height can not satisfy the requirement of float glass to raw material, must handle the requirement that just can reach float glass by ore dressing.
Separating the effective method contain the feldspar natural silica Sand is floatation.Floatation for separating feldspar, quartz have two kinds of methods in the world: hydrofluoric acid floatation and floride-free floatation.
The hydrofluoric acid floatation is made the activator of feldspar of hydrofluoric acid or fluoride.The sorting of the feldspar of this method and quartz is good, can obtain quality quartz sand and feldspar byproduct preferably.But because of activator directly is added to floatation system, there are a large amount of unnecessary activators in the ore pulp, make and contain a large amount of fluorine ions in the flotation waste water.Beneficiation wastewater directly effluxes and can produce pollution to environment; As discharging again after flotation waste water is handled, because the amount of beneficiation wastewater is very big, the disposal cost height has increased production cost again.Therefore, limited the application of this method.
Floride-free floatation is invented for solving hydrofluoric acid method environmental pollution.Therefore this method, has eliminated the pollution of hydrofluoric acid method fluorine ion to environment without hydrofluoric acid.But the feldspar of this method, quartzy sorting are good not as the hydrofluoric acid method, add that dosing is big, medicament price height, have influenced its promotion and application.
Up to this point, China uses contains simple process such as the feldspar natural silica Sand is just washed mostly, desliming, and the iron in the silica sand, aluminium content are still very high.Main siliceous raw material have to be done with sandstone by float glass enterprise, adds a small amount of feldspathic natural silica Sand or feldspar.Because it is many that sandstone is crossed the superfine powder of pulverizing, add iron, the aluminium content height of the natural silica Sand of simple ore dressing processing, the difficult quality of float glass improves.
This method is new technology, the new technology that flotation contains the feldspar silica sand in alkaline medium, and selects new floating agent for use, makes the separation index of floatation for separating feldspar, quartz good; The floating agent consumption significantly reduces, and has reduced production cost; Owing to when flotation, need not acid do medium, solve the etching problem of acid to equipment.
Three, summary of the invention:
This patent method main purpose is to solve the etching problem of acid system flotation to equipment, improves the sorting of feldspar, quartz, produces the high grade quartz sand that satisfies the float glass industrial requirements.
The silica sand flotation is studied and be facts have proved, acid medium can change the electrical of quartzy and feldspar, thereby the employing cation-collecting agent can separating feldspar and quartz.The inventor herein confirms that by a large amount of experimental studies silica sand flotation front surface is handled extremely important, if surface treatment is good, selects for use suitable floating agent can make feldspar, the quartzy separation in alkaline medium.
The technology crux of this patent method is to select suitable flotation agent; Before floatation for separating feldspar, quartz, silica sand is handled, the silica sand particle can fully be acted on floating agent, improve feldspar and quartzy sorting.Beneficiation wastewater recycles, and has reduced the consumption of mill water.
Accompanying drawing is seen in the technological process of this method.
With this method In Shandong Weihai rising sun mouth silica sand is carried out float test, obtained Good result of the test. The result lists as follows.
1 roughing sand chemical analysis: SiO2 90.64％， Al
2O
3 5.01％，
Fe
2O
3 0.33％。
2. washed ore index after the preliminary treatment flotation:
Quartz sand: to raw ore productive rate 73.13%;
Chemical analysis is SiO
298.6%, Al
2O
30.65%
Fe
2O
3?0.08％。
3. floating agent consumption:
Surface conditioning agent: 1.5Kg/T sand.
Collecting agent: 1.2Kg/T sand.
Four, the specific embodiment:
Implementing the art of this patent should be in strict accordance with the technological process graphic operation.The medicament that the medicament that the medicament that preliminary treatment is used generally adopts as mining processing industry, flotation use is the flotation agent of special use of the present invention.
Find that by great deal of experimental preliminary treatment is abundant more, feldspar is good more with quartzy sorting, and the consumption of collecting agent is also few more.Therefore, implement the art of this patent pulp density when preliminary treatment and must meet the requirements of index.If in strict accordance with the technological process operation of this patent, select suitable floating agent for use, just can produce high grade quartz sand.
Claims (4)
- This method is the new technology about the silica sand flotation, is suitable for containing the flotation of feldspar silica sand.Traditional silica sand method for floating is acids to be adjusted agent be added in the floatation system, carries out flotation after sizing mixing.Claim scope of the present invention is as follows:(1) before floatation for separating feldspar, the quartz, earlier silica sand is carried out preliminary treatment.
- (2) in floatation system, add alkalescence and adjust agent.
- (3) flotation collector is the DY-2 collecting agent.
- (4) flotation water recycles.Preliminary treatment can fully act on the silica sand particle with floating agent, has improved feldspar and quartzy sorting; Flotation has solved and has contained sour ore dressing water to the corrosion of equipment and the pollution problem of environment in the alkaline medium.Flotation water recycles, and can reduce the consumption of ore dressing water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA021567468A CN1507953A (en) | 2002-12-18 | 2002-12-18 | Process for flotation of silica sand in alkaline medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA021567468A CN1507953A (en) | 2002-12-18 | 2002-12-18 | Process for flotation of silica sand in alkaline medium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1507953A true CN1507953A (en) | 2004-06-30 |
Family
ID=34236375
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA021567468A Pending CN1507953A (en) | 2002-12-18 | 2002-12-18 | Process for flotation of silica sand in alkaline medium |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1507953A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102139246A (en) * | 2010-12-01 | 2011-08-03 | 中钢集团马鞍山矿山研究院有限公司 | Method for preparing feldspar iron removal floatation collecting agent |
| CN103657859A (en) * | 2013-11-21 | 2014-03-26 | 成都兴能新材料有限公司 | Method for removing feldspar in quartz sand through flotation |
| CN107377229A (en) * | 2017-09-29 | 2017-11-24 | 江苏闽江矿业有限公司 | A kind of silica sand method for floating |
| CN107649295A (en) * | 2017-09-29 | 2018-02-02 | 江苏闽江矿业有限公司 | A kind of silica sand flotation experiments method |
-
2002
- 2002-12-18 CN CNA021567468A patent/CN1507953A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102139246A (en) * | 2010-12-01 | 2011-08-03 | 中钢集团马鞍山矿山研究院有限公司 | Method for preparing feldspar iron removal floatation collecting agent |
| CN102139246B (en) * | 2010-12-01 | 2013-10-16 | 中钢集团马鞍山矿山研究院有限公司 | Method for preparing feldspar iron removal floatation collecting agent |
| CN103657859A (en) * | 2013-11-21 | 2014-03-26 | 成都兴能新材料有限公司 | Method for removing feldspar in quartz sand through flotation |
| CN107377229A (en) * | 2017-09-29 | 2017-11-24 | 江苏闽江矿业有限公司 | A kind of silica sand method for floating |
| CN107649295A (en) * | 2017-09-29 | 2018-02-02 | 江苏闽江矿业有限公司 | A kind of silica sand flotation experiments method |
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|---|---|---|---|
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |