CN106810087B - A kind of process of surface treatment of coal fly ash hollow micro bead - Google Patents
A kind of process of surface treatment of coal fly ash hollow micro bead Download PDFInfo
- Publication number
- CN106810087B CN106810087B CN201510894011.3A CN201510894011A CN106810087B CN 106810087 B CN106810087 B CN 106810087B CN 201510894011 A CN201510894011 A CN 201510894011A CN 106810087 B CN106810087 B CN 106810087B
- Authority
- CN
- China
- Prior art keywords
- microballon
- alcohol
- fly ash
- washing
- surface treatment
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000000034 method Methods 0.000 title claims abstract description 32
- 239000010881 fly ash Substances 0.000 title claims abstract description 21
- 239000003245 coal Substances 0.000 title claims abstract description 17
- 239000011325 microbead Substances 0.000 title claims abstract description 16
- 238000004381 surface treatment Methods 0.000 title claims abstract description 14
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 28
- 239000003513 alkali Substances 0.000 claims abstract description 19
- 238000005406 washing Methods 0.000 claims abstract description 19
- 239000002253 acid Substances 0.000 claims abstract description 13
- 239000011248 coating agent Substances 0.000 claims abstract description 12
- 238000000576 coating method Methods 0.000 claims abstract description 12
- 238000002525 ultrasonication Methods 0.000 claims abstract description 11
- 238000004064 recycling Methods 0.000 claims abstract description 6
- 238000013517 stratification Methods 0.000 claims abstract description 6
- 238000002604 ultrasonography Methods 0.000 claims abstract description 6
- 238000010790 dilution Methods 0.000 claims abstract description 4
- 239000012895 dilution Substances 0.000 claims abstract description 4
- 230000001376 precipitating effect Effects 0.000 claims abstract description 4
- 239000012487 rinsing solution Substances 0.000 claims abstract description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 25
- 235000019441 ethanol Nutrition 0.000 claims description 22
- CDBYLPFSWZWCQE-UHFFFAOYSA-L sodium carbonate Substances [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 14
- 238000003756 stirring Methods 0.000 claims description 14
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 10
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 8
- 239000002245 particle Substances 0.000 claims description 7
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 7
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 6
- 239000011259 mixed solution Substances 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 238000000746 purification Methods 0.000 claims description 2
- 239000000243 solution Substances 0.000 claims description 2
- 239000011324 bead Substances 0.000 abstract description 7
- 239000000463 material Substances 0.000 abstract description 4
- 230000015572 biosynthetic process Effects 0.000 abstract description 2
- 238000001914 filtration Methods 0.000 description 5
- 239000000126 substance Substances 0.000 description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 239000002956 ash Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000004927 fusion Effects 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 241000219991 Lythraceae Species 0.000 description 1
- 241000218211 Maclura Species 0.000 description 1
- 235000014360 Punica granatum Nutrition 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 239000002734 clay mineral Substances 0.000 description 1
- 239000002817 coal dust Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- KZHJGOXRZJKJNY-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Si]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O KZHJGOXRZJKJNY-UHFFFAOYSA-N 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 229910052900 illite Inorganic materials 0.000 description 1
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 1
- 229910052622 kaolinite Inorganic materials 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052863 mullite Inorganic materials 0.000 description 1
- VGIBGUSAECPPNB-UHFFFAOYSA-L nonaaluminum;magnesium;tripotassium;1,3-dioxido-2,4,5-trioxa-1,3-disilabicyclo[1.1.1]pentane;iron(2+);oxygen(2-);fluoride;hydroxide Chemical compound [OH-].[O-2].[O-2].[O-2].[O-2].[O-2].[F-].[Mg+2].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[K+].[K+].[K+].[Fe+2].O1[Si]2([O-])O[Si]1([O-])O2.O1[Si]2([O-])O[Si]1([O-])O2.O1[Si]2([O-])O[Si]1([O-])O2.O1[Si]2([O-])O[Si]1([O-])O2.O1[Si]2([O-])O[Si]1([O-])O2.O1[Si]2([O-])O[Si]1([O-])O2.O1[Si]2([O-])O[Si]1([O-])O2 VGIBGUSAECPPNB-UHFFFAOYSA-L 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000004506 ultrasonic cleaning Methods 0.000 description 1
Landscapes
- Processing Of Solid Wastes (AREA)
- Surface Treatment Of Glass (AREA)
Abstract
The invention discloses a kind of process of surface treatment of coal fly ash hollow micro bead.The process of surface treatment the following steps are included: (1) to microballon carry out alcohol wash, after stratification, recycling alcohol dilution lower part precipitating microballon；(2) microballon after washing to alcohol is washed, after stratification, the microballon of recycling rinsing solution top floating；(3) ultrasonication is carried out to the microballon after washing；(4) sour processing is carried out to the microballon after ultrasonication, repeats step (2) after acid processing；(5) alkali process is carried out to microballon, repeats step (2) after alkali process, obtains the lightweight microballon for being adapted for coating.The present invention is washed using alcohol, is washed, ultrasound is washed, acid is handled and the means such as alkali process handle bead surface according to the formation feature of coal fly ash hollow micro bead, sorts out density in 0.7-1g/cm3Suitable coating high quality lightweight microballon, to improve the coating ability of subsequent material.
Description
Technical field
The present invention relates to a kind of process of surface treatment of coal fly ash hollow micro bead (referred to as " microballon "), belong to surface treatment skill
Art field.
Background technique
Coal fly ash hollow micro bead is the microballon sorted out from flyash.Flyash is big by various shape difference
Grain composition, when various particles are all that coal dust burns in boiler, ash fusion cooling is formed.Fly ash hollow floating bead it is main
Chemical component be silica and aluminium oxide, respectively 60% and 30% or so.
Coal fly ash hollow micro bead.In coal measures clay mineral be mainly kaolinite and illite, just in 550 DEG C or so
Dehydration exhaust, mutually become amorphous phase from monoclinic system, because of expanded exhaust, quality becomes loose porous, from 1000-1300 DEG C by
Gradually fusion and decomposition forms the paragenetic association of mullite and quartz glass, is such as at this moment acted on by chilling, is just formed and is not come containing volume
The spongy glass of stone emblem crystalline substance, when temperature is raised to 1400 DEG C or so, irregular sponge particles, first from the thin portion of the point such as corner angle
Position starts to be passivated, and then melt surface is by including the air seal in hole, and as temperature increases, the particle of melting is by surface
Power influences to become spherical, forms three-bristle cudrania pomegranate shape, and emblem orifice ring is shelly-shaped and the structures such as hollow ball shell, and at this moment cooling becomes as hollow glass
Pearl.
Since flyash has other impurity substances in combustion, it is easy to be bonded in the table of microballon at high temperature
Face, so that microballon is in irregular shape, simultaneously because microballon does not have stringent control to lead to the objects such as its density in developmental process
Reason characteristic has very big difference.
It is cheap due to the byproduct that microballon is power plant, it is at present to be used as based on refractory material or filler material more,
There are some scholars to have studied the material for utilizing it as coating, the method being surface-treated at present is mostly to utilize conventional list
One acid processing or alkali process, these methods cannot well be handled the little particle of its surface adhesion, while also without very
Good selectivity.
Summary of the invention
Based on this, the purpose of the present invention is to provide a kind of process of surface treatment of coal fly ash hollow micro bead.
To achieve the above object, the invention adopts the following technical scheme:
A kind of process of surface treatment of coal fly ash hollow micro bead, comprising the following steps:
(1) alcohol is carried out to microballon to wash, after stratification, the microballon of recycling alcohol dilution lower part precipitating；
(2) microballon after washing to alcohol is washed, after stratification, the microballon of recycling rinsing solution top floating；
(3) ultrasonication is carried out to the microballon after washing；
(4) sour processing is carried out to the microballon after ultrasonication, repeats step (2) after acid processing；
(5) alkali process is carried out to microballon, repeats step (2) after alkali process, obtains the lightweight microballon for being adapted for coating.
Cardinal principle of the invention are as follows: washed in step (1) using alcohol and clean organic matter, while it is big to select density
In 0.7-0.8g/cm3Microballon；The ash content of part adherency is cleaned by step (2), while selecting density less than 1.0g/cm3's
Microballon；Fall to be adhered to the little particle of bead surface by step (3) ultrasonic cleaning or separates the microballon being sticked together；Pass through
Step (4) and step (5) make bead surface form small defect, in favor of subsequent coating procedure.
In the present invention, coal fly ash hollow micro bead used is the microballon generated in power plant's production process, particle size range
It is 30-200 μm.
In the step (1), it is 20-30 DEG C that alcohol, which washes temperature, and alcohol washes time 10-60min, stirring intensity 200-
800rpm。
In the step (2), washing temperature is 20-30 DEG C, washing time 5-60min, stirring intensity 200-
800rpm。
In the step (3), ultrasonication temperature is 20-30 DEG C, ultrasonic time 5-15min, and ultrasound intensity is
20-80KHZ。
In the step (4), sour treatment temperature be 20-30 DEG C, stirring intensity 200-800rpm, acid processing the time be
5-20min。
In the step (5), alkali purification temp is 20-30 DEG C, stirring intensity 200-800rpm, and the alkali process time is
5-20min。
In the present invention, alcohol used is methanol or ethyl alcohol, and acidizer used is sulfuric acid or hydrochloric acid, at alkali used
Manage the mixed solution that agent is sodium hydroxide and sodium carbonate.Wherein, the concentration of sulfuric acid is 1-5mol/L；The concentration of hydrochloric acid is 1-
5mol/L；The concentration of sodium hydroxide is 2-5mol/L in the mixed solution of sodium hydroxide and sodium carbonate, and the concentration of sodium carbonate is 2-
5mol/L。
The present invention has the advantages that
The present invention according to the formation feature of coal fly ash hollow micro bead, washed, washed using alcohol, ultrasound is washed, acid is handled and alkali at
The means such as reason handle bead surface, sort out density in 0.7-1g/cm3Suitable coating high quality lightweight it is micro-
Pearl, to improve the coating ability of subsequent material.
Detailed description of the invention
Fig. 1 is process flow chart of the invention.
Fig. 2 is to scheme in embodiment 1 without the SEM of the microballon of surface treatment.
Fig. 3 is the SEM figure of the microballon after being surface-treated in embodiment 1.
Specific embodiment
Below according to drawings and examples, the present invention will be further described, and embodiments of the present invention are not limited thereto.
As shown in Figure 1, being process flow chart of the invention, coal fly ash hollow micro bead successively passes through alcohol and washes → wash → ultrasound
Wash → means such as sour processing → washing → alkali process → washing obtain the microballon for being suitble to surface coating.
Embodiment 1
By taking the surface treatment of a collection of coal fly ash hollow micro bead as an example, specific steps are as follows:
(1) alcohol is washed
It carries out alcohol to microballon to wash, temperature is 25 DEG C, and alcohol washes time 30min, stirring intensity 500rpm, stands 5min layering
Afterwards, the microballon of alcohol dilution lower part precipitating is recovered by filtration；
(2) it washes
Microballon after washing to alcohol is washed, and temperature is 25 DEG C, washing time 15min, stirring intensity 500rpm, is stood
It is layered after 5min, the microballon of rinsing solution top floating is recovered by filtration；
(3) ultrasonication
Ultrasonication is carried out to the microballon after washing, temperature is 25 DEG C, ultrasonic time 10min, ultrasound intensity 40KHZ,
The microballon of top floating is recovered by filtration；
(4) acid processing
Sour processing, concentration of hydrochloric acid 2.5mol/L are carried out to the microballon after ultrasonication, temperature is 25 DEG C, stirring intensity
500rpm, acid processing time are 15min, are washed after acid processing, and remaining lye is washed off, and washing temperature is 25 DEG C, washing
Time 15min, stirring intensity 500rpm are layered after standing 5min, microballon are recovered by filtration；
(5) alkali process
Alkali process, concentration of sodium hydroxide solution 3mol/L are carried out to acid treated microballon, sodium carbonate liquor concentration is
3mol/L, temperature are 25 DEG C, stirring intensity 500rpm, and the acid processing time is 15min, are washed after alkali process, wash off remnants
Lye, washing temperature be 25 DEG C, washing time 15min, stirring intensity 500rpm, stand 5min after be layered, be recovered by filtration micro-
Pearl.
As shown in Fig. 2, the bead surface without surface treatment adheres to a large amount of impurity substances, the shape of microballon is not advised
Then, it is not suitable for surface coating.As shown in figure 3, the bead surface after surface treated is smooth, regular shape is suitable for table
Face coating.
Claims (4)
1. a kind of process of surface treatment of coal fly ash hollow micro bead, which comprises the following steps:
(1) it carries out alcohol to microballon to wash, it is 20-30 DEG C that alcohol, which washes temperature, and alcohol washes the time as 10-60min, stirring intensity 200-
800rpm；After stratification, the microballon of recycling alcohol dilution lower part precipitating；
(2) microballon after washing to alcohol is washed, and washing temperature is 20-30 DEG C, washing time 5-60min, and stirring intensity is
200-800rpm；After stratification, the microballon of recycling rinsing solution top floating；
(3) ultrasonication is carried out to the microballon after washing, ultrasonication temperature is 20-30 DEG C, ultrasonic time 5-
15min, ultrasound intensity 20-80KHZ；
(4) sour processing is carried out to the microballon after ultrasonication, sour treatment temperature is 20-30 DEG C, stirring intensity 200-
800rpm, acid processing time are 5-20min；Step (2) are repeated after acid processing；
(5) alkali process is carried out to microballon, alkali purification temp is 20-30 DEG C, stirring intensity 200-800rpm, and the alkali process time is
5-20min；Step (2) are repeated after alkali process, obtain the lightweight microballon for being adapted for coating.
2. the process of surface treatment of coal fly ash hollow micro bead according to claim 1, which is characterized in that flyash used
Cenosphere is the microballon generated in power plant's production process, and particle size range is 30-200 μm.
3. the process of surface treatment of coal fly ash hollow micro bead according to claim 1 or 2, which is characterized in that alcohol used
For methanol or ethyl alcohol, acidizer used is sulfuric acid or hydrochloric acid, and alkali process agent used is the mixed of sodium hydroxide and sodium carbonate
Close solution.
4. technique as claimed in claim 3, which is characterized in that the concentration of the sulfuric acid is 1-5mol/L；The hydrochloric acid it is dense
Degree is 1-5mol/L；In the mixed solution of sodium hydroxide and sodium carbonate the concentration of sodium hydroxide be 2-5mol/L, sodium carbonate it is dense
Degree is 2-5mol/L.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510894011.3A CN106810087B (en) | 2015-11-30 | 2015-11-30 | A kind of process of surface treatment of coal fly ash hollow micro bead |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510894011.3A CN106810087B (en) | 2015-11-30 | 2015-11-30 | A kind of process of surface treatment of coal fly ash hollow micro bead |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106810087A CN106810087A (en) | 2017-06-09 |
| CN106810087B true CN106810087B (en) | 2019-07-16 |
Family
ID=59105678
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510894011.3A Expired - Fee Related CN106810087B (en) | 2015-11-30 | 2015-11-30 | A kind of process of surface treatment of coal fly ash hollow micro bead |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106810087B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114989679A (en) * | 2022-05-05 | 2022-09-02 | 安徽盛城新型材料有限公司 | Preparation method of colorful stone-like coating for exterior wall |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1194049C (en) * | 2002-01-31 | 2005-03-23 | 刘承晖 | Hollow microbead filling paint and producing process thereof |
| CN102850825B (en) * | 2012-09-11 | 2013-12-25 | 安徽理工大学 | Method and application for carrying out fly ash floating bead surface modification by using compound coupling agent |
| CN104310787A (en) * | 2014-09-28 | 2015-01-28 | 中国建材国际工程集团有限公司 | Preparation method of fly ash artificial hollow floating beads |
-
2015
- 2015-11-30 CN CN201510894011.3A patent/CN106810087B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN106810087A (en) | 2017-06-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104030290B (en) | The method of nano-silicon is produced with rice husk | |
| CN106629796A (en) | Method for activating and regenerating waste industrial activated aluminum oxide | |
| CN109719118A (en) | A kind of aluminium cell solid waste recycling treatment system and method | |
| CN106810087B (en) | A kind of process of surface treatment of coal fly ash hollow micro bead | |
| CN103056605A (en) | Production method of high-density molybdenum crucible | |
| CN109126685A (en) | A method of photocatalysis adsorbent material is prepared using high-titanium blast furnace slag | |
| CN108745272A (en) | A kind of method that flyash directly prepares Jie's microporous adsorbent material | |
| CN105646940A (en) | Method for coating surface of potassium titanate whisker with nanometer calcium carbonate | |
| CN106629743A (en) | Method for producing quartz sand for ceramic glaze by using quartz tailing | |
| CN108359273A (en) | A method of improving marble powder whiteness | |
| CN105133035A (en) | Cleaning and decontaminating silicon wafer texturing agent and preparation method therefor | |
| CN104826390A (en) | Modified volcanic rock absorption filtering agent, and preparation method thereof | |
| CN108046368A (en) | Glass-loaded lithium ion sieve filler of a kind of open celled foam and preparation method thereof | |
| CN104841372A (en) | Comprehensive metal oxide modified diatomite adsorption filtering agent and preparation method thereof | |
| CN109179376A (en) | The method that latex foam prepares porous carbon nanomaterial | |
| CN104043639B (en) | A kind of production method of desiliconization flyash | |
| CN114180541A (en) | Method for recovering and purifying waste silicon nitride | |
| CN107902693A (en) | The method that one step hydrothermal template method prepares the hollow micro-nano structure TiO2 microballoons of bivalve layer | |
| CN105964053A (en) | Purifying filter material for boiler dust remover and preparation method of purifying filter material | |
| JP2012045442A (en) | Method for manufacturing photocatalyst carrying inorganic foam | |
| CN113042009A (en) | Method for preparing elastic spongy adsorbing material from waste shells | |
| CN110171846A (en) | A method of preparation lead oxide powder being roasted by ullrasonic spraying using scrap lead cream | |
| CN105948102A (en) | Preparation method of indium hydroxide/indium oxide hollow microspheres | |
| CN104826391A (en) | Nanometer-ceramic-powder-base adsorption filtering agent and preparation method thereof | |
| CN104841373A (en) | Montmorillonite/nanometer titanium dioxide composite adsorption filtering agent and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20190625 Address after: 101407 No. 11 Xingke East Street, Yanqi Economic Development Zone, Huairou District, Beijing Applicant after: YOUYAN ENGINEERING TECHNOLOGY RESEARCH INSTITUTE Co.,Ltd. Address before: No. 2, Xinjie street, Xicheng District, Beijing, Beijing Applicant before: General Research Institute for Nonferrous Metals |
|
| TA01 | Transfer of patent application right | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210401 Address after: 101407 No. 11 Xingke East Street, Yanqi Economic Development Zone, Huairou District, Beijing Patentee after: Youyan resources and Environment Technology Research Institute (Beijing) Co.,Ltd. Address before: 101407 No. 11 Xingke East Street, Yanqi Economic Development Zone, Huairou District, Beijing Patentee before: YOUYAN ENGINEERING TECHNOLOGY RESEARCH INSTITUTE Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190716 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |