CN106006696A - Fabrication method and application of gypsum micro powder - Google Patents
Fabrication method and application of gypsum micro powder Download PDFInfo
- Publication number
- CN106006696A CN106006696A CN201610315767.2A CN201610315767A CN106006696A CN 106006696 A CN106006696 A CN 106006696A CN 201610315767 A CN201610315767 A CN 201610315767A CN 106006696 A CN106006696 A CN 106006696A
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- China
- Prior art keywords
- gypsum fibrosum
- manufacture method
- ardealite
- fibrosum micropowder
- stearate
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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 invention relates to the technical field of gypsum modification, in particular to a fabrication method and application of gypsum micro powder. Free water of ardealite is removed, then ardealite is ground till the degree of fineness reaches 600 meshes or above, the sieving rate is controlled to be 93% or above, and meanwhile an additive is added so that activity of the gypsum micro powder can be high, water resistance can be excellent, particularly it is difficult for the gypsum micro powder to absorb moisture in the air, agglomeration can be avoided, the shelf life of the gypsum micro powder can be long, and quality can be good; besides, when the gypsum micro powder is used for preparing corresponding products, fracture resistance and compression resistance are excellent, and the softening coefficient is excellent; presetting time is long, and the product preparation process is convenient to conduct.
Description
Technical field
The present invention relates to Gypsum Fibrosum technical field of modification, especially a kind of Gypsum Fibrosum micropowder manufacture method and
The application of this Gypsum Fibrosum micropowder.
Background technology
Ardealite is to utilize wet processing to produce in the production process of phosphoric acid, and rock phosphate in powder is anti-with sulphuric acid
Should, generate phosphoric acid and with calcium sulphate dihydrate (CaSO4·2H2O) it is the ardealite of Main Ingredients and Appearance.
According to data, China's common property ardealite in 2007 about 30,000,000 tons, it is contemplated that to phosphorus stone in 2010
Cream yield will reach 50,000,000 tons, and ardealite about 1.6 hundred million tons is stored up in the current whole nation altogether, and utilization rate
The most about 10%.A large amount of storing up of ardealite cause the biggest economic pressures to manufacturing enterprise, and
And ecological environment is caused serious harm.State Environmental Protection Administration 2006 is first by ardealite
Qualitative is " danger wastes ", sends the alert news of ardealite comprehensive utilization to the whole society.Phosphorus stone
The comprehensive utilization of cream is a global problem, and China is as the first big production of phosphate fertilizer in the world
State, is also simultaneously the first big ardealite by-product state, and therefore the comprehensive utilization to ardealite is the most urgent
Cut.
Ardealite is used for producing cement, sulphuric acid, soil improvement etc. on a small quantity at present, and is largely used to
Produce construction material.Application way is to be washed with water by ardealite, add additive, carry out point
From, be dried, then through high-temperature calcination, removing free water and partially crystallizable water, prepare β half water
Gypsum Fibrosum (CaSO4·0.5H2O), prepare building gypsum plaster through grinding, the various Gypsum Fibrosum system of reproduction
Product.
Utilizing calcine technology to process the Gypsum Fibrosum powder obtained, it has a following defect that can not be ignored:
(1) product is second-rate so that the anti-folding of goods prepared as raw material, resistance to compression
Intensity is relatively low, it is impossible to fully meet the requirement of strength of goods, and resistance to water is poor, softening system
Number is relatively low, easily causes potential safety hazard；Setting time is shorter, it has not been convenient to fabricated product, adds
Retarder causes relatively costly, and intensity reduces；(2) during calcination processing, its energy consumption is relatively
Greatly, secondary pollution is easily caused；(3) technological process is long, and equipment is complicated, cost is high；(4)
The activity of the Gypsum Fibrosum powder obtained is relatively low, range of application more limitation, the treating capacity to ardealite
Relatively low.
In consideration of it, this researcher combines long-term practical experience, to output in phosphorus chemical industry
Industrial solid castoff ardealite carries out the process rationalized, and combines in prior art and deposit
Drawbacks described above, and then prepare Gypsum Fibrosum micropowder for ardealite, and apply it to corresponding field
Provide a kind of new approaches.
Summary of the invention
In order to solve above-mentioned technical problem present in prior art, the present invention provides a kind of Gypsum Fibrosum
Micropowder manufacture method and the application of this Gypsum Fibrosum micropowder.
It is achieved particular by techniques below scheme:
A kind of Gypsum Fibrosum micropowder manufacture method, after ardealite is sloughed Free water, is placed on grinding
Machine grinds to form mesh number >=600 mesh, and to control its sieving rate be >=93%, and at process of lapping
Middle interpolation accounts for the additive that the 0.01-0.1% of the weight after Free water sloughed by ardealite.
Described grinding, it is in process of lapping, has been also added with accounting for after ardealite sloughs Free water
0.1～the activating agent of 0.8% of weight.
Described activating agent, its material composition is aluminum sulfate 0.1-0.3 part, sulfur in parts by weight
Acid ferrum 0.4-0.7 part, calcium sulfate 0.2-0.5 part, quick lime 3-6 part, vanadium slag 1-5 part, nut
Powder 0.1-0.5 part.
Described activating agent, its material composition is 0.2 part of aluminum sulfate, iron sulfate in parts by weight
0.5 part, 0.4 part of calcium sulfate, quick lime 5 parts, vanadium slag 3 parts, 0.3 part of nut powder.
Described nut powder, it is acorn nut fruit and/or Semen Pini；Mixed when for acorn nut fruit and Semen Pini
During compound, its mixing ratio is 1: 0.3-0.5.
Described activating agent, its preparation method be nut powder is mixed homogeneously with quick lime after, will
It is placed in the environment that humidity is 80-90%, places after 1-3h, then by aluminum sulfate, iron sulfate,
Calcium sulfate is sequentially added into, and to use mixing speed be after 100-300r/min stirs, then will
Vanadium slag adds, and is placed in the environment that temperature is 40-60 DEG C ageing 1-3 days, then is sent
Enter grinding machine for grinding, and cross the sieve of 600 mesh, it is thus achieved that.
Described additive, its addition is to account for the weight after Free water sloughed by ardealite
0.05%.
Described additive, it is stearic acid and stearate, paraffin, barium cadmium stabilizer, barium
One or more kinds of mixture in zinc stabilizer.
Described stearate, for zinc stearate, calcium stearate, magnesium stearate, ferric stearate
In any or several mixture.
The present invention also provides for Gypsum Fibrosum micropowder prepared by above-mentioned Gypsum Fibrosum micropowder manufacture method, and it can
It is applied to macromolecule material product, the preparation of military project material product, effectively raises high score
Sub-material product, the anti-folding of military project material product, comprcssive strength, improve its coefficient of softing.
Slough Free water above-mentioned, be ardealite to use temperature be 55-65 DEG C process to permanent
Weight.
In use, it is used for preparing PVC material when doing filler, and it is according to Patent No.
201510844840.0 preparation method carry out the preparation of PVC material.
Compared with prior art, the technique effect of the present invention is embodied in:
By ardealite being sloughed Free water, then it is ground to fineness more than 600 mesh, and
Control sieving rate, more than 93%, adds additive so that the activity of Gypsum Fibrosum micropowder is higher simultaneously,
Resistance to water is more excellent, is especially difficult to absorb the moisture in air, will not conglomeration so that Gypsum Fibrosum is micro-
The shelf-life of powder is longer, and quality is more excellent；And when using it for preparing corresponding goods, it resists
Folding, comprcssive strength are more excellent, and coefficient of softing is more excellent；Its presetting period is longer so that prepared by product
Process is more convenient.
The technological process of the present invention especially Gypsum Fibrosum micropowder preparation process is short, and processing mode is simple,
Energy consumption is relatively low, and cost is relatively low.
Especially in the adding procedure of additive, the activity of Gypsum Fibrosum micropowder is not only made to be increased
By force, but also avoid Gypsum Fibrosum micropowder granule and air contact generation agglomeration, improve stone
Rheological characteristic during the preservation of cream micropowder so that the activity of Gypsum Fibrosum micropowder obtains long-term preservation；
Treating capacity is relatively big, and cost is relatively low；In addition, in order to make the active of Gypsum Fibrosum micropowder obtain
To further strengthening, its retarding effect is more preferably notable, and it, during processing, is also added with
There is activator so that activator interacts with Gypsum Fibrosum micropowder, improves the quality of Gypsum Fibrosum micropowder,
And enhance the anti-folding during Gypsum Fibrosum micropowder is prepared as goods, comprcssive strength, improve goods
Coefficient of softing, improve quality.
The present invention is carried out also by the raw material of activator and the preparation technology parameter of activator
Limit so that the activator obtained effectively and Gypsum Fibrosum micropowder effect can improve Gypsum Fibrosum
Dispersibility, reduce the agglomeration of Gypsum Fibrosum.
Detailed description of the invention
Below in conjunction with specific embodiment, technical scheme is further limited
Fixed, but claimed scope is not only limited to description.
Embodiment 1
A kind of Gypsum Fibrosum micropowder manufacture method, after ardealite is sloughed Free water, is placed on grinding
Machine grinds to form fineness 600 mesh, and to control its sieving rate be 93%, and add in process of lapping
Add the additive accounting for the weight after Free water sloughed by ardealite 0.01%.Described additive,
It is stearic acid.Ardealite uses temperature to be 55 DEG C and processes to constant weight, removes Free water.
Embodiment 2
A kind of Gypsum Fibrosum micropowder manufacture method, after ardealite is sloughed Free water, is placed on grinding
Machine grinds to form fineness 700 mesh, and to control its sieving rate be 97%, and add in process of lapping
Add the additive accounting for the weight after Free water sloughed by ardealite 0.1%.Described additive, its
For stearic acid, paraffin, barium cadmium stabilizer, the mixture of barium zinc stabilizer.
Embodiment 3
A kind of Gypsum Fibrosum micropowder manufacture method, after ardealite is sloughed Free water, is placed on grinding
Machine grinds to form fineness 1200 mesh, and to control its sieving rate be 93%, and in process of lapping
Add the additive accounting for the weight after Free water sloughed by ardealite 0.05%.Described additive,
It is stearic acid and stearate, paraffin, barium cadmium stabilizer, the mixture of barium zinc stabilizer.
Described stearate, for zinc stearate.Ardealite uses temperature to be 65 DEG C and processes to constant weight,
Removing Free water.
Embodiment 4
A kind of Gypsum Fibrosum micropowder manufacture method, after ardealite is sloughed Free water, is placed on grinding
Machine grinds to form fineness 3000 mesh, and to control its sieving rate be 96%, and in process of lapping
Add the additive accounting for the weight after Free water sloughed by ardealite 0.07%.Described additive,
It is stearic acid and stearate, paraffin, barium cadmium stabilizer, the mixture of barium zinc stabilizer,
Mixing ratio be arbitrarily than.Described stearate, for zinc stearate, calcium stearate, stearic acid
Magnesium, the mixture of ferric stearate, mixing ratio be arbitrarily than.
Embodiment 5
On the basis of embodiment 1, other are all with embodiment 1, a kind of Gypsum Fibrosum micropowder manufacture method,
Described grinding, it is in process of lapping, is also added with accounting for the weight after Free water sloughed by ardealite
The activating agent of the 0.1% of amount.Described activating agent, its material composition is aluminum sulfate by weight
0.1kg, iron sulfate 0.4kg, calcium sulfate 0.2kg, quick lime 3kg, vanadium slag 1kg, nut powder
0.1kg.Described nut powder, it is acorn nut fruit and/or Semen Pini；When for acorn nut fruit and Semen Pini
During mixture, its mixing ratio is 1: 0.3.
Described activating agent, its preparation method be nut powder is mixed homogeneously with quick lime after, will
It is placed in the environment that humidity is 80%, after placing 1h, then by aluminum sulfate, iron sulfate, sulphuric acid
Calcium is sequentially added into, and to use mixing speed be after 100r/min stirs, then is added by vanadium slag,
And it is placed in the environment that temperature is 40 DEG C ageing 1 day, then it is sent to grinding machine for grinding,
And cross the sieve of 600 mesh, it is thus achieved that.Ardealite uses temperature to be 60 DEG C and processes to constant weight, and removing is certainly
By water.
Embodiment 6
On the basis of embodiment 2, other are all with embodiment 2, a kind of Gypsum Fibrosum micropowder manufacture method,
Described grinding, it is in process of lapping, is also added with accounting for the weight after Free water sloughed by ardealite
The activating agent of the 0.8% of amount.Described activating agent, its material composition is aluminum sulfate by weight
0.3kg, iron sulfate 0.7kg, calcium sulfate 0.5kg, quick lime 6kg, vanadium slag 5kg, nut powder
0.5kg.Described nut powder, it is acorn nut fruit and/or Semen Pini；When for acorn nut fruit and Semen Pini
During mixture, its mixing ratio is 1: 0.5.Described activating agent, its preparation method is by nut
After powder is mixed homogeneously with quick lime, it is placed in the environment that humidity is 90%, after placing 3h,
Again aluminum sulfate, iron sulfate, calcium sulfate are sequentially added into, and to use mixing speed be 300r/min
After stirring, then vanadium slag is added, and be placed in the environment that temperature is 60 DEG C ageing 3
My god, then it is sent to grinding machine for grinding, and cross the sieve of 600 mesh, it is thus achieved that.
Embodiment 7
On the basis of embodiment 3, other are all with embodiment 3, a kind of Gypsum Fibrosum micropowder manufacture method,
Described grinding, it is in process of lapping, is also added with accounting for the weight after Free water sloughed by ardealite
The activating agent of the 0.7% of amount.Described activating agent, its material composition is aluminum sulfate by weight
0.2kg, iron sulfate 0.5kg, calcium sulfate 0.4kg, quick lime 5kg, vanadium slag 3kg, nut powder
0.3kg。
Described nut powder, it is acorn nut fruit and/or Semen Pini；Mixed when for acorn nut fruit and Semen Pini
During compound, its mixing ratio is 1: 0.4.
Described activating agent, its preparation method be nut powder is mixed homogeneously with quick lime after, will
It is placed in the environment that humidity is 85%, after placing 2h, then by aluminum sulfate, iron sulfate, sulphuric acid
Calcium is sequentially added into, and to use mixing speed be after 200r/min stirs, then is added by vanadium slag,
And it is placed in the environment that temperature is 50 DEG C ageing 2 days, then it is sent to grinding machine for grinding,
And cross the sieve of 600 mesh, it is thus achieved that.
Experimental example:
Being used for the Gypsum Fibrosum micropowder that embodiment 1 obtains preparing PVC material is filler, by traditional handicraft
The Gypsum Fibrosum micropowder of preparation is used as after filler as a control group, draws: the Gypsum Fibrosum micropowder system of embodiment
The smoothness of standby PVC out, whiteness is superior to matched group, and the softening system of the PVC obtained
The excellence that number is prepared than traditional technique, it has reached more than 10%；By micro-for the Gypsum Fibrosum of embodiment 2
It is filler that powder is used for preparing elastomeric material, and the intensity of rubber is more excellent, and suppleness exceeds than traditional
More than 15%；The Gypsum Fibrosum micropowder of embodiment 3 is used for preparing painting and does modifying agent, obtain
The viscosity of painting is more excellent；The Gypsum Fibrosum micropowder of embodiment 4 is used for cement modifier, slow setting
Effect is more excellent, it is possible to effectively extend setting time, and its bending and compressive strength is by grace
Conspicuous impact；The Gypsum Fibrosum micropowder of embodiment 5 is used for goods prepare, and by it under natural curing
Maintenance 3 days, detects its anti-row that folds into, and it can reach 2.6-4.5MPa.
Claims (10)
1. a Gypsum Fibrosum micropowder manufacture method, it is characterised in that ardealite is sloughed Free water
After, be placed on grinding machine for grinding and become mesh number >=600 mesh, and control its sieving rate for >=
93%, and add in process of lapping and account for ardealite and slough the 0.01-0.1% of the weight after Free water
Additive.
2. Gypsum Fibrosum micropowder manufacture method as claimed in claim 1, it is characterised in that described
Grinding, it is in process of lapping, is also added with accounting for ardealite and sloughs the weight after Free water
0.1～the activating agent of 0.8%.
3. Gypsum Fibrosum micropowder manufacture method as claimed in claim 2, it is characterised in that described
Activating agent, its material composition is aluminum sulfate 0.1-0.3 part, iron sulfate 0.4-0.7 in parts by weight
Part, calcium sulfate 0.2-0.5 part, quick lime 3-6 part, vanadium slag 1-5 part, nut powder 0.1-0.5
Part.
4. Gypsum Fibrosum micropowder manufacture method as claimed in claim 2, it is characterised in that described
Activating agent, its material composition is 0.2 part of aluminum sulfate, 0.5 part of iron sulfate, sulphuric acid in parts by weight
Calcium 0.4 part, quick lime 5 parts, vanadium slag 3 parts, 0.3 part of nut powder.
5. the Gypsum Fibrosum micropowder manufacture method as described in claim 3 or 4, it is characterised in that institute
The nut powder stated, it is acorn nut fruit and/or Semen Pini；When for acorn nut fruit and the mixture of Semen Pini,
Its mixing ratio is 1: 0.3-0.5.
6. the Gypsum Fibrosum micropowder manufacture method as described in claim 3 or 4, it is characterised in that institute
The activating agent stated, its preparation method be nut powder is mixed homogeneously with quick lime after, be placed on
Humidity is in the environment of 80-90%, after placing 1-3h, then by aluminum sulfate, iron sulfate, calcium sulfate
It is sequentially added into, and to use mixing speed be after 100-300r/min stirs, then vanadium slag is added
Enter, and be placed in the environment that temperature is 40-60 DEG C ageing 1-3 days, then be sent to grind
Machine grinds, and crosses the sieve of 600 mesh, it is thus achieved that.
7. Gypsum Fibrosum micropowder manufacture method as claimed in claim 1, it is characterised in that described
Additive, its addition is to account for ardealite to slough 0.05% of the weight after Free water.
8. the Gypsum Fibrosum micropowder manufacture method as described in claim 1 or 7, it is characterised in that institute
The additive stated, it is that stearic acid and stearate, paraffin, barium cadmium stabilizer, barium zinc are stable
One or more kinds of mixture in agent.
9. Gypsum Fibrosum micropowder manufacture method as claimed in claim 8, it is characterised in that described
Stearate, for arbitrary in zinc stearate, calcium stearate, magnesium stearate, ferric stearate
Kind or several mixture.
10. the Gypsum Fibrosum that prepared by the Gypsum Fibrosum micropowder manufacture method as described in any one of claim 1-9
Micropowder, it is applied to macromolecule material product, the preparation of military project material product.
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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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| 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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Cited By (5)
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| 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 |
| CN108276607A (en) * | 2018-02-11 | 2018-07-13 | 贵州大学 | A kind of Phosphogypsum-modifymethod method |
| 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 |
| 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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|---|---|---|---|---|
| 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 |
| CN108276607A (en) * | 2018-02-11 | 2018-07-13 | 贵州大学 | A kind of Phosphogypsum-modifymethod method |
| 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 |
| 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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| Publication number | Publication date |
|---|---|
| CN106006696B (en) | 2018-03-13 |
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