CN106006696B - A kind of application of Gypsum Fibrosum micropowder preparation method and the Gypsum Fibrosum micropowder - Google Patents
A kind of application of Gypsum Fibrosum micropowder preparation method and the Gypsum Fibrosum micropowder Download PDFInfo
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- CN106006696B CN106006696B CN201610315767.2A CN201610315767A CN106006696B CN 106006696 B CN106006696 B CN 106006696B CN 201610315767 A CN201610315767 A CN 201610315767A CN 106006696 B CN106006696 B CN 106006696B
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- Prior art keywords
- gypsum fibrosum
- parts
- ardealite
- fibrosum micropowder
- preparation
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Classifications
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F11/00—Compounds of calcium, strontium, or barium
- C01F11/46—Sulfates
Abstract
The present invention relates to gypsum technical field of modification, the application of especially a kind of Gypsum Fibrosum micropowder preparation method and the Gypsum Fibrosum micropowder, by the way that ardealite is sloughed into Free water, then fineness is ground to more than 600 mesh, and sieving rate is controlled more than 93%, add additive simultaneously so that the activity of Gypsum Fibrosum micropowder is higher, and water resistance is more excellent, the moisture being especially difficult in absorption air, will not conglomeration so that the shelf-life of Gypsum Fibrosum micropowder is longer, and quality is more excellent；And when using it for preparing corresponding product, its anti-folding, compression strength are more excellent, and coefficient of softing is more excellent；Its presetting period is longer so that product preparation process is more convenient.
Description
Technical field
The present invention relates to gypsum technical field of modification, especially a kind of Gypsum Fibrosum micropowder preparation method and the Gypsum Fibrosum micropowder should
With.
Background technology
Ardealite be using wet processing production phosphoric acid production process in, rock phosphate in powder and sulfuric acid reaction, generation phosphoric acid and
With calcium sulphate dihydrate (CaSO4·2H2O it is) ardealite of Main Ingredients and Appearance.According to data, China's common property ardealite in 2007 is about
30000000 tons, it is contemplated that will be up to 50,000,000 tons to ardealite yield in 2010, about 1.6 hundred million tons of ardealite is stored up in the whole nation altogether at present, and
Utilization rate only has about 10%.The stockpiling of a large amount of ardealites causes very big economic pressures to manufacturing enterprise, and ecological environment is made
Into serious harm.State Environmental Protection Administration 2006 first by ardealite it is qualitative be " danger wastes ", send phosphorus stone to the whole society
The alert news of cream comprehensive utilization.The comprehensive utilization of ardealite is a global problem, and China is as the in the world first big phosphate fertilizer life
State is produced, while is also the first big ardealite by-product state, therefore the comprehensive utilization to ardealite is particularly urgent.
Ardealite is used to produce cement, sulfuric acid, soil improvement etc. on a small quantity at present, and is largely used to produce construction material.Profit
It is ardealite is washed with water, to add additive, separated, dried with method, then through high-temperature calcination, removes free water and portion
Divide the crystallization water, β semi-hydrated gypsums (CaSO is made4·0.5H2O), building gypsum plaster, the various plasterings of reproduction are made through grinding.
The land plaster obtained is handled using calcine technology, it has following the defects of can not be ignored：
(1) product is second-rate so that the anti-folding of the product prepared as raw material, compression strength are relatively low, it is impossible to
The intensity requirement of product is fully met, and water resistance is poor, coefficient of softing is relatively low, easily causes potential safety hazard；Setting time
It is shorter, it has not been convenient to which that fabricated product, adding retarder causes cost higher, intensity decreases；(2) during calcination processing, its energy
Consume larger, easily cause secondary pollution；(3) technological process is grown, and equipment is complicated, cost is high；(4) land plaster obtained activity compared with
Low, application more limitation is relatively low to the treating capacity of ardealite.
In consideration of it, this researcher combines long-term practical experience, the industrial solid of output in phosphorus chemical industry is discarded
The processing that thing --- ardealite is rationalized, and drawbacks described above present in prior art is combined, and then prepared for ardealite
Gypsum Fibrosum micropowder, and apply it to corresponding field and provide a kind of new approaches.
The content of the invention
In order to solve above-mentioned technical problem present in prior art, the present invention provide a kind of Gypsum Fibrosum micropowder preparation method and
The application of the Gypsum Fibrosum micropowder.
It is achieved particular by following technical scheme：
A kind of Gypsum Fibrosum micropowder preparation method, after ardealite is sloughed into Free water, is placed in grinder and is ground into mesh number
>=600 mesh, and it is >=93% to control its sieving rate, and addition accounts for ardealite and sloughs the weight after Free water in process of lapping
0.01-0.1% additive.
Described grinding, its in process of lapping, also added with account for ardealite slough the weight after Free water 0.1~
0.8% activating agent.
Described activating agent, its material composition are aluminum sulfate 0.1-0.3 parts, ferric sulfate 0.4-0.7 parts, sulphur in parts by weight
Sour calcium 0.2-0.5 parts, quick lime 3-6 parts, vanadium slag 1-5 parts, nut powder 0.1-0.5 parts.
Described activating agent, its material composition is in parts by weight 0.2 part of aluminum sulfate, 0.5 part of ferric sulfate, calcium sulfate 0.4
Part, 5 parts of quick lime, 3 parts of vanadium slag, 0.3 part of nut powder.
Described nut powder, it is acorn nut fruit and/or pine nut；When for the mixture of acorn nut fruit and pine nut when, its mixing ratio
For 1: 0.3-0.5.
Described activating agent, its preparation method are after nut powder is well mixed with quick lime, and it is 80- to be placed on humidity
In 90% environment, after placing 1-3h, then aluminum sulfate, ferric sulfate, calcium sulfate sequentially added, and use mixing speed as 100-
After 300r/min stirs, then vanadium slag added, and be placed in the environment that temperature is 40-60 DEG C and be aged 1-3 days, then general
It is sent into grinder and ground, and crosses the sieve of 600 mesh, obtains.
Described additive, its addition are to account for ardealite sloughs the weight after Free water 0.05%.
Described additive, it is one kind in stearic acid and stearate, paraffin, barium cadmium stabilizer, barium zinc stabilizer
Or two or more mixture.
Described stearate, be zinc stearate, calcium stearate, magnesium stearate, any in ferric stearate or
Several mixtures.
The present invention also provides Gypsum Fibrosum micropowder prepared by above-mentioned Gypsum Fibrosum micropowder preparation method, and it can be applied to macromolecule
The preparation of material product, military project material product, effectively raise the anti-folding, anti-of macromolecule material product, military project material product
Compressive Strength, improve its coefficient of softing.
Free water is sloughed in above-mentioned, is that ardealite is used into temperature as 55-65 DEG C of processing to constant weight.
In use, it is used to preparing PVC material when doing filler, and it is according to Patent No. 201510844840.0
Preparation method carries out the preparation of PVC material.
Compared with prior art, technique effect of the invention is embodied in：
By the way that ardealite is sloughed into Free water, then fineness is ground to more than 600 mesh, and control sieving rate 93%
More than, while add additive so that the activity of Gypsum Fibrosum micropowder is higher, and water resistance is more excellent, is especially difficult in absorption air
Moisture, will not conglomeration so that the shelf-life of Gypsum Fibrosum micropowder is longer, and quality is more excellent；And when using it for preparing corresponding product,
Its anti-folding, compression strength are more excellent, and coefficient of softing is more excellent；Its presetting period is longer so that product preparation process is more convenient.
The technological process of especially Gypsum Fibrosum micropowder preparation process of the invention is short, and processing mode is simple, and energy consumption is relatively low, cost compared with
It is low.
Especially in the adding procedure of additive, not only make it that the activity of Gypsum Fibrosum micropowder is strengthened, and also avoid
With air contact agglomeration occurs for Gypsum Fibrosum micropowder particle, improves the rheological characteristic during Gypsum Fibrosum micropowder preserves so that gypsum
The activity of micro mist obtains long-term preservation；Treating capacity is larger, and cost is relatively low；In addition, in order to causing Gypsum Fibrosum micropowder
Activity is further enhanced, and its retarding effect is more preferably notable, and it is during processing, also added with activator so that
Activator interacts with Gypsum Fibrosum micropowder, improves the quality of Gypsum Fibrosum micropowder, and enhance Gypsum Fibrosum micropowder and be prepared into product mistake
Anti- folding in journey, compression strength, improve the coefficient of softing of product, improve quality.
The present invention is also defined by the raw material to activator and the preparation technology parameter of activator so that is obtained
Effectively being acted on Gypsum Fibrosum micropowder for activator, improves the dispersiveness of gypsum, reduces the agglomeration of gypsum.
Embodiment
Limited with reference to specific embodiment technical scheme is further, but claimed
Scope is not only limited to made description.
Embodiment 1
A kind of Gypsum Fibrosum micropowder preparation method, after ardealite is sloughed into Free water, is placed in grinder and is ground into fineness
600 mesh, and it is 93% to control its sieving rate, and addition accounts for ardealite and sloughs the weight after Free water in process of lapping
0.01% additive.Described additive, it is stearic acid.Ardealite uses temperature, and for 55 DEG C of processing to constant weight, removing is certainly
By water.
Embodiment 2
A kind of Gypsum Fibrosum micropowder preparation method, after ardealite is sloughed into Free water, is placed in grinder and is ground into fineness
700 mesh, and it is 97% to control its sieving rate, and addition accounts for ardealite and sloughs the weight after Free water in process of lapping
0.1% additive.Described additive, it is stearic acid, paraffin, barium cadmium stabilizer, the mixture of barium zinc stabilizer.
Embodiment 3
A kind of Gypsum Fibrosum micropowder preparation method, after ardealite is sloughed into Free water, is placed in grinder and is ground into fineness
1200 mesh, and it is 93% to control its sieving rate, and addition accounts for ardealite and sloughs the weight after Free water in process of lapping
0.05% additive.Described additive, it is stearic acid and stearate, paraffin, barium cadmium stabilizer, barium zinc stabilizer
Mixture.Described stearate, it is zinc stearate.Ardealite uses temperature to remove Free water for 65 DEG C of processing to constant weight.
Embodiment 4
A kind of Gypsum Fibrosum micropowder preparation method, after ardealite is sloughed into Free water, is placed in grinder and is ground into fineness
3000 mesh, and it is 96% to control its sieving rate, and addition accounts for ardealite and sloughs the weight after Free water in process of lapping
0.07% additive.Described additive, it is stearic acid and stearate, paraffin, barium cadmium stabilizer, barium zinc stabilizer
Mixture, mixing ratio are any ratio.Described stearate, it is zinc stearate, calcium stearate, magnesium stearate, ferric stearate
Mixture, mixing ratio are any ratio.
Embodiment 5
On the basis of embodiment 1, other are with embodiment 1, a kind of Gypsum Fibrosum micropowder preparation method, described grinding, its
In process of lapping, also added with 0.1% activating agent for accounting for ardealite and sloughing the weight after Free water.Described activating agent,
Its material composition is by weight aluminum sulfate 0.1kg, ferric sulfate 0.4kg, calcium sulfate 0.2kg, quick lime 3kg, vanadium slag 1kg, heavily fortified point
Fruit powder 0.1kg.Described nut powder, it is acorn nut fruit and/or pine nut；When for the mixture of acorn nut fruit and pine nut when, its mix
Than for 1: 0.3.
Described activating agent, its preparation method are after nut powder is well mixed with quick lime, and being placed on humidity is
In 80% environment, after placing 1h, then aluminum sulfate, ferric sulfate, calcium sulfate sequentially added, and use mixing speed as 100r/
After min stirs, then vanadium slag added, and be placed in the environment that temperature is 40 DEG C and be aged 1 day, then be sent to grinding
Ground in machine, and cross the sieve of 600 mesh, obtained.Ardealite uses temperature to remove Free water for 60 DEG C of processing to constant weight.
Embodiment 6
On the basis of embodiment 2, other are with embodiment 2, a kind of Gypsum Fibrosum micropowder preparation method, described grinding, its
In process of lapping, also added with 0.8% activating agent for accounting for ardealite and sloughing the weight after Free water.Described activating agent,
Its material composition is by weight aluminum sulfate 0.3kg, ferric sulfate 0.7kg, calcium sulfate 0.5kg, quick lime 6kg, vanadium slag 5kg, heavily fortified point
Fruit powder 0.5kg.Described nut powder, it is acorn nut fruit and/or pine nut；When for the mixture of acorn nut fruit and pine nut when, its mix
Than for 1: 0.5.Described activating agent, its preparation method are after nut powder is well mixed with quick lime, and being placed on humidity is
In 90% environment, after placing 3h, then aluminum sulfate, ferric sulfate, calcium sulfate sequentially added, and use mixing speed as 300r/
After min stirs, then vanadium slag added, and be placed in the environment that temperature is 60 DEG C and be aged 3 days, then be sent to grinding
Ground in machine, and cross the sieve of 600 mesh, obtained.
Embodiment 7
On the basis of embodiment 3, other are with embodiment 3, a kind of Gypsum Fibrosum micropowder preparation method, described grinding, its
In process of lapping, also added with 0.7% activating agent for accounting for ardealite and sloughing the weight after Free water.Described activating agent,
Its material composition is by weight aluminum sulfate 0.2kg, ferric sulfate 0.5kg, calcium sulfate 0.4kg, quick lime 5kg, vanadium slag 3kg, heavily fortified point
Fruit powder 0.3kg.
Described nut powder, it is acorn nut fruit and/or pine nut；When for the mixture of acorn nut fruit and pine nut when, its mixing ratio
For 1: 0.4.
Described activating agent, its preparation method are after nut powder is well mixed with quick lime, and being placed on humidity is
In 85% environment, after placing 2h, then aluminum sulfate, ferric sulfate, calcium sulfate sequentially added, and use mixing speed as 200r/
After min stirs, then vanadium slag added, and be placed in the environment that temperature is 50 DEG C and be aged 2 days, then be sent to grinding
Ground in machine, and cross the sieve of 600 mesh, obtained.
Experimental example：
It is filler that the Gypsum Fibrosum micropowder that embodiment 1 is obtained, which is used to prepare PVC material, Gypsum Fibrosum micropowder prepared by traditional handicraft
It is used as after filler as a control group, draws：The smoothness for the PVC that the Gypsum Fibrosum micropowder of embodiment prepares, whiteness are superior to pair
According to group, and obtained PVC coefficient of softing is more excellent than prepared by traditional technique, and it has reached more than 10%；By embodiment 2
Gypsum Fibrosum micropowder be used for that to prepare elastomeric material to be filler, the intensity of rubber is more excellent, and suppleness is higher by more than 15% than traditional；Will
The Gypsum Fibrosum micropowder of embodiment 3 does modifying agent for preparing painting, and the viscosity of obtained painting is more excellent；By embodiment 4
Gypsum Fibrosum micropowder be used for cement modifier, retarding effect is more excellent, can effectively extend setting time, and its bending and compressive strength
It is by the conspicuous influence of grace；The Gypsum Fibrosum micropowder of embodiment 5 is prepared for product, and it is conserved 3 days under natural curing, it is right
It, which resists, folds into capable detection, and it can reach 2.6-4.5MPa.
Claims (6)
1. a kind of Gypsum Fibrosum micropowder preparation method, it is characterised in that after ardealite is sloughed into Free water, be placed in grinder and grind
The mesh of mesh number >=600 is worn into, and it is >=93% to control its sieving rate, and addition accounts for ardealite and sloughs Free water in process of lapping
The 0.01-0.1% of weight afterwards additive；Described additive, it is that stearic acid and stearate, paraffin, barium cadmium are stable
One or more kinds of mixtures in agent, barium zinc stabilizer；Above-mentioned sloughs Free water, is that ardealite is used into temperature
For 55-65 DEG C of processing to constant weight；
Described grinding, it is in process of lapping, also added with account for that ardealite sloughs the weight after Free water 0.1~0.8%
Activating agent；Described activating agent, its material composition in parts by weight for aluminum sulfate 0.1-0.3 parts, ferric sulfate 0.4-0.7 parts,
Calcium sulfate 0.2-0.5 parts, quick lime 3-6 parts, vanadium slag 1-5 parts, nut powder 0.1-0.5 parts.
2. Gypsum Fibrosum micropowder preparation method as claimed in claim 1, it is characterised in that described activating agent, its material composition with
Parts by weight are calculated as 0.2 part of aluminum sulfate, 0.5 part of ferric sulfate, 0.4 part of calcium sulfate, 5 parts of quick lime, 3 parts of vanadium slag, 0.3 part of nut powder.
3. Gypsum Fibrosum micropowder preparation method as claimed in claim 1 or 2, it is characterised in that described nut powder, it is acorn nut fruit
And/or pine nut；When for the mixture of acorn nut fruit and pine nut when, its mixing ratio be 1:0.3-0.5.
4. Gypsum Fibrosum micropowder preparation method as claimed in claim 1 or 2, it is characterised in that described activating agent, its preparation method
It is to be placed in the environment that humidity is 80-90% after nut powder is well mixed with quick lime, after placing 1-3h, then by sulphur
Sour aluminium, ferric sulfate, calcium sulfate are sequentially added, and after using mixing speed to be stirred for 100-300r/min, then vanadium slag is added
Enter, and be placed in the environment that temperature is 40-60 DEG C and be aged 1-3 days, then be sent in grinder and grind, and cross 600 mesh
Sieve, obtain.
5. Gypsum Fibrosum micropowder preparation method as claimed in claim 1, it is characterised in that described additive, its addition are to account for
Ardealite sloughs 0.05% of the weight after Free water.
6. Gypsum Fibrosum micropowder preparation method as claimed in claim 1, it is characterised in that described stearate, be zinc stearate,
Any or several mixture in calcium stearate, magnesium stearate, ferric stearate.
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| CN201610315767.2A CN106006696B (en) | 2016-05-12 | 2016-05-12 | A kind of application of Gypsum Fibrosum micropowder preparation method and the Gypsum Fibrosum micropowder |
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| CN108384281A (en) * | 2018-02-11 | 2018-08-10 | 贵州开磷磷石膏综合利用有限公司 | A kind of active phosphogypsum micro mist preparation method |
| CN108276607A (en) * | 2018-02-11 | 2018-07-13 | 贵州大学 | A kind of Phosphogypsum-modifymethod method |
| CN108165029A (en) * | 2018-02-11 | 2018-06-15 | 贵州开磷磷石膏综合利用有限公司 | A kind of micronization modified method of ardealite as PVC fillers |
| CN110204231A (en) * | 2019-06-03 | 2019-09-06 | 杨舜轲 | A method of building gypsum is prepared using power plant's solid waste desulfurized gypsum |
| CN115193569A (en) * | 2022-07-26 | 2022-10-18 | 一夫科技股份有限公司 | Preparation method of superfine calcium sulfate |
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| CN1226222C (en) * | 2003-03-19 | 2005-11-09 | 铜陵化学工业集团有限公司 | Method for producing building gypsum powder using phosphrus gypsum |
| CN100439277C (en) * | 2004-12-24 | 2008-12-03 | 贵阳顺海钛金镀膜厂 | Section materials produced from phosphogypsum and its preparation method |
| CN101597079B (en) * | 2009-07-03 | 2011-08-24 | 河北邢台双华石膏制品有限公司 | Technologic method for producing plastic compression gypsum powder |
| CN102718424B (en) * | 2012-06-26 | 2013-12-25 | 江苏建华管桩有限公司 | High-activity granulated blast furnace slag and preparation method thereof |
| CN104628274A (en) * | 2014-12-03 | 2015-05-20 | 昆明理工大学 | Method and device for preparing high-strength alpha hemihydrate gypsum by using phosphogypsum |
| CN105084930B (en) * | 2015-08-11 | 2017-07-07 | 锦洋高新材料股份有限公司 | A kind of preparation method of the modified fluorine gypsum powder for brushing gypsum |
| CN105418045A (en) * | 2015-11-10 | 2016-03-23 | 贵州腾峰科技有限责任公司 | Wall constructed from phosphorus gypsum mortar and construction method of wall |
| CN105462107A (en) * | 2015-11-29 | 2016-04-06 | 贵州开磷集团股份有限公司 | Method for producing PVC (polyvinyl chloride) profile by taking alpha-semi-hydrated gypsum, beta semi-hydrated gypsum and anhydrite prepared from phosphogypsum as filler |
| CN105482512A (en) * | 2015-11-29 | 2016-04-13 | 贵州开磷集团股份有限公司 | Method for producing conductive filling material from phosphogypsum as raw material |
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