CN106675150A - Method for producing quartz sand aggregate for paint by utilizing quartz tailing - Google Patents
Method for producing quartz sand aggregate for paint by utilizing quartz tailing Download PDFInfo
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- CN106675150A CN106675150A CN201611020300.1A CN201611020300A CN106675150A CN 106675150 A CN106675150 A CN 106675150A CN 201611020300 A CN201611020300 A CN 201611020300A CN 106675150 A CN106675150 A CN 106675150A
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- quartz
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- tail sand
- quartz tail
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
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- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Silicon Compounds (AREA)
Abstract
The invention discloses a method for producing quartz sand aggregate for paint by utilizing quartz tailing, and relates to the technical field of quartz sand production. The quartz sand aggregate with excellent product performance for paint is prepared by washing, strong magnetic separation, first grading, acid leaching, oxidative alkaline washing, drying, second grading and bag-packaging, so that the problems pollution caused by taking tailings as waste in an existing quartz sand producing process, poor quality and limited application range of product prepared by the existing method for treating quartz tailings can be solved.
Description
Technical field
The present invention relates to quartz sand production technical field, more particularly to one kind is using quartz sand tailings production coating quartz
The method of sand aggregate.
Background technology
Quartz tail sand is valuable mineral resources, and the up to ten million tons of China's annual emissions, recycling has turned into necessarily to become
Gesture.National annual quartz tail sand, ore deposit tailings discharge capacity have got over 10,000,000 tons, discharge so substantial amounts of quartz tail sand, ore deposit tailings, directly
Connect the adverse consequences such as cause serious environmental pollution, cultivated land occupancy, river course, reservoir to silt up.Many enterprises technique and it is dust-proof on
It is also relatively backward, especially in quartz sand dry process, a large amount of dusts are generated, production environment is quite severe, serious danger
Evil worker and neighbouring resident it is healthy.For environmental protection and make full use of mineral resources, the comprehensive profit of quartz sand tailings
With extremely urgent.
Coating is a kind of material, and this material can be coated in object surface with different construction technologies, form adhesion jail
Gu, with some strength, continuous solid film.Paint coatings resistance to ag(e)ing and anti-under the factors effect of natural Hua Jing
Bacterium property more embodies the use value of the coating, is the general performance of the various performances of coating.Research find, quartz sand tailings and its
His chemical composition such as fume colloidal silica and nanometer this acrylic emulsion combine together well, improve the physical and chemical performance of coating, increase
Strong film adhesive and surface mechanical strength, effectively improve the ageing-resistant and anti-microbial property of coating, and improve coating simultaneously
The combination property such as water-fast, alkaline-resisting, acidproof, abrasion resistance.Practical great amount of cost titanium dioxide higher in traditional latex paint, but
The aging and antibiotic property of film are still undesirable, and pernicious gas can not discharge completely.Quartz tail sand and other chemical compositions
Addition being a kind of ideal way instead of price titanium dioxide higher.
So, the purity and granular size of quartz tail sand are very big to the performance impact of coating, to make satisfactory
Quartz tail sand is simultaneously remarkable, and quartz tail sand includes the waste residue in ore extraction, the tailings in process and tail mud, wherein tailings
Account for the overwhelming majority.The chemical composition of quartz tail sand is mainly SiO2, other impurities composition is mainly LoI, Al2O3, Fe2O3,
CaO, MgO, R2O etc., these impurity components are mainly and are present in feldspar, clay, mica, iron mineral etc..With quartzy washed ore pair
Than the SiO in tailings2Content is substantially reduced, and it is not high that this results in tailings quality, it is necessary in quartz tail sand purification and its processing side
Face is made an effort can carry out high-end applications.Existing process technology is shortening process-cycle and imperfection.
The content of the invention
To solve that tailings is made into polluting and existing caused by waste disposal in existing quartz sand production process
The problems such as product quality that obtains of method that processes quartz sand tailings is not high, the scope of application is restricted and provide a kind of using quartz
The method that sand tailings produces coating quartz sand aggregate.
Concrete scheme of the invention is as follows：
A kind of method that utilization quartz tail sand produces coating quartz sand aggregate, comprises the following steps：
(1) wash：Quartz tail sand is put into hydrocyclone and is cleaned, there is no obvious impurity to surface；
(2) high intensity magnetic separation：In the case where magnetic field intensity is 1.3T, using intensity magnetic separator to the quartz that is obtained in step (1)
Tailings carries out pre-classification；
(3) it is classified for the first time：Quartz tail sand from obtained by step (2) is dehydrated after isolating the quartz tail sand of 40-200 mesh
It is standby；
(4) acidleach：Quartz sand tailings raw material is put into sand washing tube, while uniform wherein dispense inorganic acid, after adding water
So that the concentration of solid-to-liquid ratio is in 40-50%, after adding inorganic acid, be cleaned to thing by quartz sand is stood into 6-12 hour
Material PH=6-7 and then again drying material；
(5) alkali cleaning is aoxidized：The H2O2 that concentration is 8-10% will be uniformly added into by step (4) pickling material, and will
Its sealing oxidation 6-12 hours, aqueous slkali is added in material after oxidation, the positive and negative stirring reaction of temperature at 80-100 DEG C, just
The frequency of anti-stirring change, then in cooling, filters aqueous slkali there be not 30min to exchange a direction；
(6) dry：In the material feeding drying machine that will be obtained in step (5), drying temperature is 200-450 DEG C, is dried
Time is 6-12H；
(7) it is classified for second：The quartz tail sand of 40-150 mesh is filtered out from the quartz tail sand obtained by step (6)；
(8) pack：Quartz tail sand obtained by step (7) is packed.
Further, the inorganic acid that washing is added in step (1) is appointing in technical hydrochloric acid, industrial sulphuric acid and industrial nitric acid
Anticipate the mixing of one or more.
Preferably, the dispensing ratio of the technical hydrochloric acid, industrial sulphuric acid and industrial nitric acid when being used in conjunction with is 2:
1.5:1。
Further, the temperature of acidleach is 150 DEG C -250 DEG C in step (4).
Preferably, the drying process in step (6) is the acclive curve drying process of tool, wherein, during 0-1H, temperature by
0 DEG C at the uniform velocity rises to 100 DEG C, and 1-2H insulation 2H, 4-6H temperature at the uniform velocity rises to 300 DEG C, during 6-7H by 100 DEG C, and temperature is by 300
DEG C rise to 400 DEG C, 7-10H insulations, then natural cooling.
After such scheme, the beneficial effect that the present invention is obtained is：
1. each is changed planes will not produce poisonous waste gas, waste water and dregs, and remaining quartz tail sand is obtained after classification can be after
It is continuous to use.
2. waste be changed into values by quartz tail sand for the present invention, reduces pollution of the quartz sand to environment, has saved resource.
3. magnetic separation twice and classification are used so that the impurity in raw material is less, and the quartz sand for obtaining is purer.
4. drying temperature is 200 DEG C -450 DEG C, uses the drying mode with uniform temperature curve so that dried more
Plus thoroughly.
Specific embodiment
All features disclosed in this specification, except mutually exclusive feature and in addition to, can group by any way
Close.Embodiments of the invention include but is not limited to following examples.
A kind of method that utilization quartz tail sand produces coating quartz sand aggregate, comprises the following steps：
(1) wash：Quartz tail sand is put into hydrocyclone and is cleaned, there is no obvious impurity to surface；
(2) high intensity magnetic separation：In the case where magnetic field intensity is 1.3T, using intensity magnetic separator to the quartz that is obtained in step (1)
Tailings carries out pre-classification；
(3) it is classified for the first time：Quartz tail sand from obtained by step (2) is dehydrated after isolating the quartz tail sand of 40-200 mesh
It is standby；
(4) acidleach：Quartz sand tailings raw material is put into sand washing tube, while uniform wherein dispense inorganic acid, after adding water
So that the concentration of solid-to-liquid ratio is in 40-50%, additional proportion is 2:1.5:1 technical hydrochloric acid, industrial sulphuric acid and industrial nitric acid, by stone
Sand rested on and cleaned by 6-12 hour in 150 DEG C of environment to material PH=6 and then drying material again；
(5) alkali cleaning is aoxidized：The H2O2 that concentration is 8-10% will be uniformly added into by step (4) pickling material, and will
Its sealing oxidation 6 hours, aqueous slkali is added in material after oxidation, and the positive and negative stirring reaction of temperature, positive and negative at 80-100 DEG C
The frequency for stirring change is that every 30min exchanges a direction, then in cooling, filters aqueous slkali；
(6) dry：In the material feeding drying machine that will be obtained in step (5), drying temperature is 200-450 DEG C, is dried
Time is 6-12H；Wherein, during 0-1H, temperature at the uniform velocity rises to 100 DEG C by 0 DEG C, and 1-2H insulation 2H, 4-6H temperature is even by 100 DEG C
Speed rises to 300 DEG C, during 6-7H, and temperature rises to 400 DEG C by 300 DEG C, and 7-10H is incubated, then natural cooling.
(7) it is classified for second：The quartz tail sand of 40-150 mesh is filtered out from the quartz tail sand obtained by step (6)；
(8) pack：Quartz tail sand obtained by step (7) is packed.
Claims (5)
1. a kind of method that utilization quartz tail sand produces coating quartz sand aggregate, it is characterised in that comprise the following steps：
(1) wash：Quartz tail sand is put into hydrocyclone and is cleaned, there is no obvious impurity to surface；
(2) high intensity magnetic separation：In the case where magnetic field intensity is 1.3T, using intensity magnetic separator to the quartz tail sand that is obtained in step (1)
Carry out pre-classification；
(3) it is classified for the first time：Quartz tail sand from obtained by step (2) isolate be dehydrated after the quartz tail sand of 40-200 mesh it is standby
With；
(4) acidleach：Quartz tail sand raw material is put into sand washing tube, while uniform wherein dispense inorganic acid, is caused after adding water solid
The concentration of liquor ratio after adding inorganic acid, is cleaned to material PH=in 40-50% by quartz sand is stood into 6-12 hour
6-7 and then again drying material；
(5) alkali cleaning is aoxidized：The H2O2 that concentration is 8-10% will be uniformly added into by step (4) pickling material, and its is close
Oxygen closure 6-12 hours, aqueous slkali is added in material after oxidation, the positive and negative stirring reaction of temperature, positive and negative to stir at 80-100 DEG C
The frequency for mixing change is that every 30min exchanges a direction, then in cooling, filters aqueous slkali；
(6) dry：In the material feeding drying machine that will be obtained in step (5), drying temperature is 200-450 DEG C, drying time
It is 6-12H；
(7) it is classified for second：The quartz tail sand of 40-150 mesh is filtered out from the quartz tail sand obtained by step (6).
2. the method that a kind of utilization quartz tail sand according to claim 1 produces coating quartz sand aggregate, its feature exists
The inorganic acid that washing is added in, step (1) in technical hydrochloric acid, industrial sulphuric acid and industrial nitric acid any one or a few
Mixed solution.
3. the method that a kind of utilization quartz tail sand according to claim 2 produces coating quartz sand aggregate, its feature
It is that the dispensing ratio of the technical hydrochloric acid, industrial sulphuric acid and industrial nitric acid when being used in conjunction with is 2:1.5:1.
4. the method that a kind of utilization quartz tail sand according to claim 2 produces coating quartz sand aggregate, its feature
It is that the temperature of acidleach is 150 DEG C -250 DEG C in step (4).
5. the method that a kind of utilization quartz tail sand according to claim 2 produces coating quartz sand aggregate, its feature
It is that the drying process in step (6) is the acclive curve drying process of tool, wherein, during 0-1H, temperature is at the uniform velocity gone up by 0 DEG C
100 DEG C are raised to, 1-2H insulation 2H, 4-6H temperature at the uniform velocity rises to 300 DEG C, during 6-7H by 100 DEG C, and temperature is risen to by 300 DEG C
400 DEG C, 7-10H is incubated, then natural cooling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611020300.1A CN106675150A (en) | 2016-11-21 | 2016-11-21 | Method for producing quartz sand aggregate for paint by utilizing quartz tailing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611020300.1A CN106675150A (en) | 2016-11-21 | 2016-11-21 | Method for producing quartz sand aggregate for paint by utilizing quartz tailing |
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| CN106675150A true CN106675150A (en) | 2017-05-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201611020300.1A Pending CN106675150A (en) | 2016-11-21 | 2016-11-21 | Method for producing quartz sand aggregate for paint by utilizing quartz tailing |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108275938A (en) * | 2018-01-09 | 2018-07-13 | 祎禾科技有限公司 | A kind of environment-friendly type CA dry mortar powders and preparation method |
| CN108620228A (en) * | 2018-04-28 | 2018-10-09 | 四川南联环资科技股份有限公司 | A kind of technique of quartz sand tailings processing and recycling |
| CN110746813A (en) * | 2019-11-06 | 2020-02-04 | 四川南联环资科技股份有限公司 | Grading method for producing coating quartz sand |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103979546A (en) * | 2014-05-05 | 2014-08-13 | 临沂晟泉矿业有限公司 | Method for producing purified high-whiteness quartz sand and silica micropowder from quartz sand tailings |
-
2016
- 2016-11-21 CN CN201611020300.1A patent/CN106675150A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103979546A (en) * | 2014-05-05 | 2014-08-13 | 临沂晟泉矿业有限公司 | Method for producing purified high-whiteness quartz sand and silica micropowder from quartz sand tailings |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108275938A (en) * | 2018-01-09 | 2018-07-13 | 祎禾科技有限公司 | A kind of environment-friendly type CA dry mortar powders and preparation method |
| CN108620228A (en) * | 2018-04-28 | 2018-10-09 | 四川南联环资科技股份有限公司 | A kind of technique of quartz sand tailings processing and recycling |
| CN110746813A (en) * | 2019-11-06 | 2020-02-04 | 四川南联环资科技股份有限公司 | Grading method for producing coating quartz sand |
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Application publication date: 20170517 |
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