CN101279738A - Method for preparing liquid sodium silicate by one-step liquid phase reaction - Google Patents
Method for preparing liquid sodium silicate by one-step liquid phase reaction Download PDFInfo
- Publication number
- CN101279738A CN101279738A CNA2008100615087A CN200810061508A CN101279738A CN 101279738 A CN101279738 A CN 101279738A CN A2008100615087 A CNA2008100615087 A CN A2008100615087A CN 200810061508 A CN200810061508 A CN 200810061508A CN 101279738 A CN101279738 A CN 101279738A
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- staving
- phase reaction
- liquid phase
- liquid
- sodium silicate
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- 238000006243 chemical reaction Methods 0.000 title claims abstract description 40
- 239000007788 liquid Substances 0.000 title claims abstract description 30
- 239000007791 liquid phase Substances 0.000 title claims abstract description 27
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 title claims abstract description 23
- 239000004115 Sodium Silicate Substances 0.000 title claims abstract description 20
- 229910052911 sodium silicate Inorganic materials 0.000 title claims abstract description 20
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims abstract description 51
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000006004 Quartz sand Substances 0.000 claims abstract description 13
- 238000003756 stirring Methods 0.000 claims abstract description 11
- 238000010438 heat treatment Methods 0.000 claims abstract description 7
- 238000003828 vacuum filtration Methods 0.000 claims abstract description 6
- 239000000463 material Substances 0.000 claims abstract description 5
- 239000000203 mixture Substances 0.000 claims abstract description 5
- 239000000706 filtrate Substances 0.000 claims abstract description 4
- 235000011121 sodium hydroxide Nutrition 0.000 claims description 16
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 8
- 238000009413 insulation Methods 0.000 claims description 7
- 229910000617 Mangalloy Inorganic materials 0.000 claims description 2
- 239000012528 membrane Substances 0.000 claims description 2
- 239000000047 product Substances 0.000 abstract description 17
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 238000005516 engineering process Methods 0.000 abstract description 5
- 239000002699 waste material Substances 0.000 abstract description 4
- 239000003513 alkali Substances 0.000 abstract description 3
- 238000002156 mixing Methods 0.000 abstract description 2
- 239000000126 substance Substances 0.000 abstract description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 235000019353 potassium silicate Nutrition 0.000 description 4
- 238000000967 suction filtration Methods 0.000 description 4
- 238000007599 discharging Methods 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 230000009466 transformation Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 229910052791 calcium Inorganic materials 0.000 description 2
- 239000011575 calcium Substances 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 230000004927 fusion Effects 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000011344 liquid material Substances 0.000 description 2
- 229910052749 magnesium Inorganic materials 0.000 description 2
- 239000011777 magnesium Substances 0.000 description 2
- 229910021645 metal ion Inorganic materials 0.000 description 2
- 239000010453 quartz Substances 0.000 description 2
- 229910052761 rare earth metal Inorganic materials 0.000 description 2
- 150000002910 rare earth metals Chemical class 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 230000035484 reaction time Effects 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000002918 waste heat Substances 0.000 description 2
- 101100027969 Caenorhabditis elegans old-1 gene Proteins 0.000 description 1
- 241001274660 Modulus Species 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000003599 detergent Substances 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- -1 metal complex ions Chemical class 0.000 description 1
- XZWYZXLIPXDOLR-UHFFFAOYSA-N metformin Chemical compound CN(C)C(=N)NC(N)=N XZWYZXLIPXDOLR-UHFFFAOYSA-N 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 150000003016 phosphoric acids Chemical class 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 235000017550 sodium carbonate Nutrition 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 235000019795 sodium metasilicate Nutrition 0.000 description 1
- 238000010532 solid phase synthesis reaction Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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- Silicates, Zeolites, And Molecular Sieves (AREA)
- Silicon Compounds (AREA)
Abstract
The invention discloses a method for preparing liquid sodium silicate by one-step liquid phase reaction, which uses SiO to prepare quartz sand and liquid alkali2Mixing with NaOH at a molar ratio of 2.2-3.4: 1, and stirringPumping the mixture into a liquid phase reaction kettle with stirring, directly introducing steam for heating, stopping steam when the pressure in the kettle reaches 0.65MPa, automatically increasing the pressure to 0.65-0.75 MPa, fully reacting for 4-6 hours, reducing the pressure, carrying out vacuum filtration, and obtaining the filtrate material, namely the high-purity liquid sodium silicate. The invention also discloses a liquid phase reaction pot special for the method. The method has the advantages of short synthetic route, few control points, simple operation, capability of obtaining high-quality liquid sodium silicate products, no generation of three wastes in the whole production process, and belongs to the production technology of green chemical industry.
Description
Technical field
The present invention relates to a kind of preparation method of liquid sodium silicate, particularly a kind of method of utilizing liquid phase reaction to prepare liquid sodium silicate.
Background technology
Traditional water glass production technique is that quartz sand and soda ash are dropped in the special-purpose high-temperature roasting stove, and with coal or oily heating and melting, blowing behind the sufficient reacting directly washes chilling with cold water during discharging, forms glassy water glass solid piece.Utilize the fusion cylinder that this piece water and a certain amount of liquid caustic soda are pressurized to 0.6-0.7Mpa again and fuse into the liquid sodium silicate product.There are many problems in this method:
1. dioxide-containing silica is generally 95-97% in the quartz sand ore, contain metal ions such as a large amount of iron, calcium, magnesium, aluminium, after high-temperature roasting, these ions and water glass form the poly material of fritting, it can't effectively be separated with finished product, contain a large amount of impurity in the back road product.Water glass after the fusion can only use the less demanding industrialness of impurity as adhesive for paper box or ceramic dispersants etc., can't use as further chemosynthesis product.
2. will make piece that liquid sodium silicate also must come out stoving oven and add alkali again and add the water reaction under high pressure, technological process is long, consumes a large amount of energy, is unfavorable for national industrial policies.
3. can only produce relatively single product.Stoving oven come out finished product SiO
2And Na
2O ratio (modulus) generally can only be accomplished 3.2M-3.6M.Also must add a set of equipment in actual the use in addition is used for regulating.
4. the investment of stoving oven and high pressure roller equipment is big, and floor space is many, is non-standard equipment, and control also is difficult for.
Quality product criticize the difference bigger, be unfavorable for industrial production control.
Summary of the invention
The invention provides a kind of method of utilizing the single stage method liquid phase reaction to prepare liquid sodium silicate, change former solid phase method and produce the method for liquid sodium silicate, adopt and directly quartz sand and liquid caustic soda are reacted in specific liquid phase reaction pot, in control rational temperature, pressure and the reaction times, obtain best transformation efficiency and product quality.
The present invention also provides a kind of liquid phase reaction pot that is exclusively used in this method.
A kind of method of utilizing the single stage method liquid phase reaction to prepare liquid sodium silicate comprises: with quartz sand and liquid caustic soda with SiO
2: NaOH mol ratio 2.2-3.4: 1 mixes, whipped state is pumped into this mixture in the liquid phase reaction pot of opening stirring down, directly feed steam heating, treat to stop when pot inner pressure reaches 0.65Mpa steam, automatically boost to 0.65-0.75Mpa, fully reacted step-down 4-6 hour, carry out vacuum filtration, getting filtrate is liquid sodium silicate.The quartz sand transformation efficiency can be 92%-95%, and the liquid caustic soda transformation efficiency can be 100%.
Described quartz sand is selected SiO for use
2The quartz sand of content more than 99.0%.Common quartz sand SiO
2Content generally has only 95-96%, contains metal complex ions such as relatively large iron, calcium, aluminium, magnesium, and under above-mentioned reaction conditions, easy and alkali reaction makes to occur a large amount of impurity in the product, handles for the road, back and increases pressure, and make quality of finished decline.SiO
2The quartz sand of content more than 99.0%, outward appearance is pure white, and metal ion content is below 0.7%, thereby guaranteed quality of finished.
Described liquid caustic soda is selected diaphragm caustic soda or ionic membrane caustic soda for use, and content is 30% GB.
A kind of liquid phase reaction pot that is exclusively used in aforesaid method comprises staving, feed-pipe, blow-down pipe, stopple coupon and discharge nozzle, is provided with double-deck stirring arm in the described staving; Be provided with tensimeter, safety valve, feed-pipe, blow-down pipe and stopple coupon in the upper cover of staving, tensimeter test staving internal pressure, for guaranteeing safety, can be provided with two, can use second during a damage, during step-down, steam is discharged by blow-down pipe, and the steam of discharging can be led to another liquid phase reaction pot preheating; Be provided with discharge nozzle along the lower cover wall to the staving lower-most point near the lower cover place from staving in the staving, discharge nozzle is simultaneously as the pipeline that feeds steam.
Described staving can be provided with man-hole opening, makes things convenient for internal examination and maintenance; Select for use the 16Mn steel as material, increase the wear resistance of bucket wall, prolong the reactor life-span; The staving height is 1 with the diameter ratio: 2.2-2.3 helps liquid-solid reaction thoroughly to carry out.
The paddle of described double-deck stirring arm guarantees thorough mixing, the reaction of staving internal reaction material apart from staving inwall 25-40mm.
Described stopple coupon extends to the staving mid-way along the bucket wall in upper cover stretches into staving.
Described staving is provided with thermal insulation layer outward, and thermal insulation layer adopts the insulating rare earth composite material.
The present invention has the following advantages:
1. synthetic route is short, and the reference mark is few, and is simple to operate;
2. production site is little, and the liquid phase reaction pot can directly stand on ground, and construction investment economizes;
3. need not stoving oven, the contour energy consumption equipment of high pressure roller, the production process energy consumption is low, high efficiency;
4. facility investment not until old 1/5 of technology, reduced investment, instant effect;
5. with respect to old technology, liquid sodium silicate product foreign matter content of the present invention descends more than 90%, and from having promoted the product quality of liquid sodium silicate in essence, thereby developing water glass product is in the application of every field.Particularly, in free phosphate detergent, replace phosphoric acid salt to bring into play enormous function as derived product (Starso, sodium metasilicate etc.).
6. production unit can not wait from the 1-30 cubic meter, and investment and industrial scale are controlled easily;
7. can be with a plurality of liquid phase reaction pots, waste heat can be used as another reactor preheating usefulness during step-down, does not waste heat energy.
8. reaction mass utilizes overbottom pressure to deliver to voluntarily in the suction filtration bucket, need not pumping;
9. can produce the purpose product of different moduluses when preparing burden according to the quartz sand and the different ratios of liquid caustic soda, the equipment suitability is strong;
10. reaction process only need be controlled liquid material pressure, need not control reaction temperature;
11. can increase or the minimizing reaction times according to raw material is different, reach the ideal reaction efficiency;
12. the sand slag behind the vacuum filtration can return batching and reuse, and neither wastes raw material, and waste residue also do not occur;
Do not produce 13. whole process of production has " three wastes ", belong to " green chemical industry " production technology.
Description of drawings
Fig. 1 is the structural representation of liquid phase reaction pot.
Embodiment
Further specify preferred forms of the present invention below in conjunction with the drawings and specific embodiments, but the present invention is not limited to this.
Design 12 cubic metres of liquid phase reaction pots, make staving 1 with thick 16 manganese steel plates of 14cm and corresponding standard sealing head, staving 1 diameter 1800mm, virtual height 4000mm respectively establishes a man-hole opening 9 up and down at staving 1.
Be provided with double-deck stirring arm 6 in the staving 1, stirring blade is apart from bucket inwall 30mm; Be provided with a feed-pipe 2, two tensimeters 7, blow-down pipe 3, a safety valve 8 (0.75Mpa) and a stopple coupon 4 in the upper cover, stopple coupon 4 extends to staving 1 mid-way along a bucket wall in upper cover stretches into staving 1; 1 lower-most point is provided with discharge nozzle 5 along the lower cover wall to staving near the lower cover place from staving 1 in the staving 1, and discharge nozzle 5 is convenient to homogeneous heating simultaneously as the pipeline that feeds steam, and discharging is clean.
For avoiding calorific loss, the insulation of entire reaction pot.Thermal insulation layer adopts the insulating rare earth composite material, the suitable 17-20cm of thermal insulation layer, and heat insulation effect is good.
In ingredients pot with SiO
2Anhui product No. seven quartz sands and 30% liquid caustic soda of content more than 99% mixes with mol ratio at 2.45: 1, whipped state is pumped into this mixture in the liquid phase reaction pot of opening stirring down, directly feed steam heating, treat to stop when pot inner pressure reaches 0.65Mpa steam, automatically boost to 0.7Mpa, fully reaction is 4 hours, sampling analysis, when modulus reaches 2.4M, by blow-down pipe steam in the reactor is discharged step-down, it is interior as preheating usefulness that the steam of discharge leads to another reactor, treats that pressure drops to 0.3Mpa, put into the suction filtration bucket and carry out vacuum filtration, the filtrate that obtains is the 2.4M liquid sodium silicate of purity more than 99.0%.
Embodiment 2:
In ingredients pot with SiO
2Anhui product No. seven quartz sands and 30% liquid caustic soda of content more than 99% mixes with mol ratio at 3.25: 1, whipped state is pumped into this mixture in the liquid phase reaction pot of opening stirring down, directly feed steam heating, treat to stop when pot inner pressure reaches 0.65Mpa steam, automatically boost to 0.7Mpa, fully reaction is 5.5 hours, sampling analysis, modulus reaches 3.2M, by blow-down pipe steam in the reactor is emitted step-down, it is interior as preheating usefulness that the steam of emitting feeds another reactor, treats that pressure drops to 0.3Mpa, put into the suction filtration bucket and carry out vacuum filtration, suction filtration liquid material is the 3.2M liquid sodium silicate of purity more than 99.0%.
Claims (9)
1, a kind of method of utilizing the single stage method liquid phase reaction to prepare liquid sodium silicate comprises: with quartz sand and liquid caustic soda with SiO
2: NaOH mol ratio 2.2-3.4: 1 mixes, whipped state is pumped into this mixture in the liquid phase reaction pot of opening stirring down, feed steam heating, treat to stop when pot inner pressure reaches 0.65Mpa feeding steam, automatically boost to 0.65-0.75Mpa, fully reacted step-down 4-6 hour, carry out vacuum filtration, getting filtrate is liquid sodium silicate.
2, the method for claim 1 is characterized in that: described quartz sand SiO
2Content is more than 99%.
3, the method for claim 1 is characterized in that: described liquid caustic soda is diaphragm caustic soda or ionic membrane caustic soda.
4, a kind of liquid phase reaction pot that is exclusively used in the described method of claim 1 comprises staving (1), feed-pipe (2), blow-down pipe (3), stopple coupon (4) and discharge nozzle (5), is provided with double-deck stirring arm (6) in the described staving; Be provided with tensimeter (7), safety valve (8), feed-pipe (2), blow-down pipe (3) and stopple coupon (4) in the upper cover of staving (1); (1) lower-most point is provided with discharge nozzle (5) along the lower cover wall to staving near the lower cover place from staving (1) in the staving (1), and described discharge nozzle (5) is simultaneously as the pipeline that feeds steam.
5, liquid phase reaction pot as claimed in claim 4 is characterized in that: described staving (1) is provided with man-hole opening (9).
6, as claim 4 or 5 described liquid phase reaction pots, it is characterized in that: described staving (1) selects for use 16 manganese steel as material, and staving (1) height is 1 with the diameter ratio: 2.2-2.3.
7, liquid phase reaction pot as claimed in claim 4 is characterized in that: the paddle of described double-deck stirring arm (6) is apart from bucket inwall 25-40mm.
8, liquid phase reaction pot as claimed in claim 4 is characterized in that: described stopple coupon (4) extends to the interior mid-way of staving (1) along the bucket wall.
9, liquid phase reaction pot as claimed in claim 4 is characterized in that: the outer thermal insulation layer that is provided with of described staving (1).
Priority Applications (1)
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CN2008100615087A CN101279738B (en) | 2008-05-12 | 2008-05-12 | Liquid phase reaction pot for preparing liquid sodium silicate by one-step liquid phase reaction |
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CN2008100615087A CN101279738B (en) | 2008-05-12 | 2008-05-12 | Liquid phase reaction pot for preparing liquid sodium silicate by one-step liquid phase reaction |
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CN101279738A true CN101279738A (en) | 2008-10-08 |
CN101279738B CN101279738B (en) | 2011-12-21 |
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Cited By (10)
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CN102153100A (en) * | 2010-12-15 | 2011-08-17 | 何侠 | Method for preparing water glass and electronic silicon dioxide from treatment waste residues of sulfuric acid slags |
CN102153099A (en) * | 2010-12-15 | 2011-08-17 | 何侠 | Method for preparing water glass and hydrophobic silicon dioxide by using treatment waste slag of calcined sulfate slag |
CN101518724B (en) * | 2009-03-27 | 2012-01-11 | 张新军 | Self-adjusting quick reaction kettle |
CN103738973A (en) * | 2013-12-17 | 2014-04-23 | 柳州东风化工股份有限公司 | Preparation method of sodium metasilicate pentahydrate |
CN103754890A (en) * | 2013-12-17 | 2014-04-30 | 柳州东风化工股份有限公司 | Preparation method for anhydrous sodium metasilicate |
CN104118880A (en) * | 2014-07-02 | 2014-10-29 | 广州立白企业集团有限公司 | Automatic blending process and equipment for wet-method sodium metasilicate production |
CN104261419A (en) * | 2014-10-14 | 2015-01-07 | 龙星化工股份有限公司 | Production method of liquid sodium silicate |
CN109395673A (en) * | 2018-12-01 | 2019-03-01 | 昌邑市龙港无机硅有限公司 | A kind of continous way Liquid-phase reactor and the process using reactor production liquid sodium silicate |
WO2019222813A1 (en) | 2018-05-25 | 2019-11-28 | Agripower Australia Limited | Method for extracting soluble si from an amorphous sio2 bearing material |
CN113195425A (en) * | 2018-11-16 | 2021-07-30 | 昆士兰大学 | Alkaline digestion of glass |
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DE3002857A1 (en) * | 1980-01-26 | 1981-07-30 | Henkel KGaA, 4000 Düsseldorf | METHOD FOR THE HYDROTHERMAL PRODUCTION OF SODIUM SILICATE SOLUTIONS |
DE3421158A1 (en) * | 1984-06-07 | 1985-12-12 | Henkel KGaA, 4000 Düsseldorf | METHOD FOR THE HYDROTHERMAL PRODUCTION OF CLEAR SODIUM SILICATE SOLUTIONS |
DE3902754A1 (en) * | 1989-01-31 | 1990-08-02 | Henkel Kgaa | METHOD FOR THE HYDROTHERMAL PRODUCTION OF SODIUM SILICATE SOLUTIONS |
DE3938789A1 (en) * | 1989-11-23 | 1991-05-29 | Henkel Kgaa | METHOD FOR THE HYDROTHERMAL PRODUCTION OF POTASSIUM SILICATE SOLUTIONS |
CN2563157Y (en) * | 2002-07-05 | 2003-07-30 | 兖矿科蓝煤焦化有限公司 | Impregnant asphalt beta resin reactor |
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2008
- 2008-05-12 CN CN2008100615087A patent/CN101279738B/en not_active Expired - Fee Related
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CN102153099A (en) * | 2010-12-15 | 2011-08-17 | 何侠 | Method for preparing water glass and hydrophobic silicon dioxide by using treatment waste slag of calcined sulfate slag |
CN102153100A (en) * | 2010-12-15 | 2011-08-17 | 何侠 | Method for preparing water glass and electronic silicon dioxide from treatment waste residues of sulfuric acid slags |
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CN103754890A (en) * | 2013-12-17 | 2014-04-30 | 柳州东风化工股份有限公司 | Preparation method for anhydrous sodium metasilicate |
CN104118880B (en) * | 2014-07-02 | 2016-01-20 | 广州立白企业集团有限公司 | A kind of wet production sodium silicate automatic blending Processes and apparatus |
CN104118880A (en) * | 2014-07-02 | 2014-10-29 | 广州立白企业集团有限公司 | Automatic blending process and equipment for wet-method sodium metasilicate production |
CN104261419A (en) * | 2014-10-14 | 2015-01-07 | 龙星化工股份有限公司 | Production method of liquid sodium silicate |
CN104261419B (en) * | 2014-10-14 | 2016-05-25 | 龙星化工股份有限公司 | A kind of production method of liquid sodium silicate |
WO2019222813A1 (en) | 2018-05-25 | 2019-11-28 | Agripower Australia Limited | Method for extracting soluble si from an amorphous sio2 bearing material |
CN113195425A (en) * | 2018-11-16 | 2021-07-30 | 昆士兰大学 | Alkaline digestion of glass |
CN109395673A (en) * | 2018-12-01 | 2019-03-01 | 昌邑市龙港无机硅有限公司 | A kind of continous way Liquid-phase reactor and the process using reactor production liquid sodium silicate |
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