CN101973747A - Method for preparing baking-free brick from yellow phosphorus slag and modified phosphogypsum - Google Patents
Method for preparing baking-free brick from yellow phosphorus slag and modified phosphogypsum Download PDFInfo
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- CN101973747A CN101973747A CN201010297601.5A CN201010297601A CN101973747A CN 101973747 A CN101973747 A CN 101973747A CN 201010297601 A CN201010297601 A CN 201010297601A CN 101973747 A CN101973747 A CN 101973747A
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- Prior art keywords
- yellow phosphorus
- phosphorus slag
- brick
- modified ardealite
- phosphogypsum
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Links
- 239000011449 brick Substances 0.000 title claims abstract description 43
- 239000002893 slag Substances 0.000 title claims abstract description 43
- OBSZRRSYVTXPNB-UHFFFAOYSA-N tetraphosphorus Chemical compound P12P3P1P32 OBSZRRSYVTXPNB-UHFFFAOYSA-N 0.000 title claims abstract description 41
- 238000000034 method Methods 0.000 title claims abstract description 18
- PASHVRUKOFIRIK-UHFFFAOYSA-L calcium sulfate dihydrate Chemical class O.O.[Ca+2].[O-]S([O-])(=O)=O PASHVRUKOFIRIK-UHFFFAOYSA-L 0.000 title abstract description 15
- 239000004568 cement Substances 0.000 claims abstract description 17
- 239000004576 sand Substances 0.000 claims abstract description 13
- 238000003756 stirring Methods 0.000 claims abstract description 10
- 238000002360 preparation method Methods 0.000 claims abstract description 7
- 238000002156 mixing Methods 0.000 claims abstract description 3
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- 229910052731 fluorine Inorganic materials 0.000 claims description 9
- 239000000292 calcium oxide Substances 0.000 claims description 8
- 235000012255 calcium oxide Nutrition 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 8
- 230000004048 modification Effects 0.000 claims description 8
- 238000012986 modification Methods 0.000 claims description 8
- 238000001354 calcination Methods 0.000 claims description 7
- DLYUQMMRRRQYAE-UHFFFAOYSA-N tetraphosphorus decaoxide Chemical compound O1P(O2)(=O)OP3(=O)OP1(=O)OP2(=O)O3 DLYUQMMRRRQYAE-UHFFFAOYSA-N 0.000 claims description 7
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims description 6
- 239000003795 chemical substances by application Substances 0.000 claims description 6
- 239000011737 fluorine Substances 0.000 claims description 6
- 239000010881 fly ash Substances 0.000 claims description 6
- 238000000465 moulding Methods 0.000 claims description 4
- 239000007787 solid Substances 0.000 claims description 3
- 239000011083 cement mortar Substances 0.000 claims description 2
- 239000011470 perforated brick Substances 0.000 claims description 2
- 238000010298 pulverizing process Methods 0.000 claims description 2
- 239000000203 mixture Substances 0.000 abstract description 15
- 238000004519 manufacturing process Methods 0.000 abstract description 14
- 239000002994 raw material Substances 0.000 abstract description 11
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 abstract description 4
- 230000008901 benefit Effects 0.000 abstract description 4
- 239000004566 building material Substances 0.000 abstract description 4
- 229910000147 aluminium phosphate Inorganic materials 0.000 abstract description 2
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 239000002440 industrial waste Substances 0.000 abstract 2
- 238000010923 batch production Methods 0.000 abstract 1
- 238000004134 energy conservation Methods 0.000 abstract 1
- 238000003912 environmental pollution Methods 0.000 abstract 1
- 230000007774 longterm Effects 0.000 abstract 1
- 238000007493 shaping process Methods 0.000 abstract 1
- 239000000047 product Substances 0.000 description 10
- 239000000126 substance Substances 0.000 description 7
- 229910052782 aluminium Inorganic materials 0.000 description 4
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 229910052698 phosphorus Inorganic materials 0.000 description 4
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 3
- YWEUIGNSBFLMFL-UHFFFAOYSA-N diphosphonate Chemical compound O=P(=O)OP(=O)=O YWEUIGNSBFLMFL-UHFFFAOYSA-N 0.000 description 3
- 239000011574 phosphorus Substances 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 229910004298 SiO 2 Inorganic materials 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 239000004927 clay Substances 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 235000013312 flour Nutrition 0.000 description 2
- 239000002367 phosphate rock Substances 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 239000006227 byproduct Substances 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000004035 construction material Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 210000003608 fece Anatomy 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 239000011507 gypsum plaster Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000010871 livestock manure Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- -1 plasterboard Substances 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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- Furnace Housings, Linings, Walls, And Ceilings (AREA)
Abstract
The invention provides a baking-free brick prepared by using yellow phosphorus slag and modified phosphogypsum as raw materials and a preparation method thereof. The industrial waste yellow phosphorus slag and the modified phosphogypsum are used as basic raw materials, sand and cement are added into the raw materials, and the mixture in a weight ratio is prepared into a finished product by processes of crushing, proportioning, mixing, stirring, high-pressure shaping, stripping, steam curing and the like. A large amount of yellow phosphorus slag discharged by the yellow phosphorus industry and a large amount of phosphogypsum discharged by the phosphoric acid industry are comprehensively utilized, and meanwhile, various environmental pollutions caused by long-term stacking of the yellow phosphorus slag and the phosphogypsum are reduced. The baking-free brick prepared from the yellow phosphorus slag and the phosphogypsum has the advantages of high utilization rate of industrial waste slag, high consumption, simple production process, short production period, low cost, environmental protection and energy conservation; and the brick meets the national standard requirements for baking-free common bricks, and is a novel environment-friendly building material. The steam curing is performed on the formed brick blank so as to shorten the curing time, improve the compressive flexural performance of the brick and facilitate large-batch production.
Description
Technical field
The present invention relates to a kind of is the non-burning brick method of feedstock production with yellow phosphorus slag and modified ardealite.
Background technology
China's land area reduces year by year, and land resources is more and more in short supply, can consume a large amount of non-renewable land resourcess owing to produce clay brick, has not met industry policy, so China prohibited the production clay solid brick in 2000.Various utilize flyash, carbide slag, casting slag, sandstone etc. as an alternative the building materials of raw material arise at the historic moment with brick.
Phosphogypsum is the by product that produces in the Wet-process Phosphoric Acid Production process, and main component is CaSO
42H
2O contains a small amount of F, P in addition
2O
5, Al
2O
3, Fe
2O
3With organism etc.Phosphogypsum is mainly used in preparation chemical fertilizer, plasterboard, cement setting retarder, building gypsum plaster and produces producing sulfuric acid and jointly cement etc.
The yellow phosphorus slag is the industrial residue that discharges in the producing yellow Phosphorus by electric oven process, is particulate matter in the stokehold through Water Quenching generally, is generally canescence, be neutral, have vesicular structure, mostly be vitreum, activity is preferably arranged, and main component is noncrystalline pseudowollastonite, removes to contain a large amount of SiO
2Outside CaO, also contain F, Al
2O
3, P
2O
5, MgO, Fe
2O
3And a spot of K
2O, MnO, Na
2Chemical ingredientss such as O.It is raw material that Electric Cooker phosphorus needs Rock Phosphate (72Min BPL), and because of various places Rock Phosphate (72Min BPL) grade difference, wherein the difference of component usually can cause SiO in the yellow phosphorus slag
2, CaO, F, Al
2O
3Content difference etc. chemical ingredients.Every production 1t yellow phosphorus approximately will discharge 8～10t waste residue, according to incompletely statistics, the quantity discharged of yellow phosphorus slag is 1078～1,300 ten thousand t/a in the world, so big quantity discharged all air storages of major part except that the small portion regeneration, both taken tract, pollute environment, again human health has been caused harm.
China was studied the comprehensive utilization of phosphorus slag since the seventies in last century, mainly utilize yellow producing cement with phosphatic slag (make cement raw material, make cement admixture), produce compound manure, but consumption is few, utilization ratio is also little, other utilize the aspect to utilize various material of construction such as yellow phosphorus slag system wall body brick, pottery, lagging material, refractory materials in addition, but on the whole, the yellow phosphorus slag also is not fully used, and its utility value is still waiting better exploitation.
Domestic to the yellow phosphorus slag be the non-burning brick relevant report of feedstock production also seldom, at the Chinese patent publication number is to disclose a kind of " yellow phosphorus slag solution is produced the method for baking-free lightweight fireproof brick " among the CN101113102A, it is to get yellow phosphorus slag that granularity is 2～5mm, high-alumina cement, aluminium stone flour according to 10～15: 0.5～1.5: 0.3～1 weight ratio adds after suitable quantity of water mixes, adopt non-baking brick machine to make shaped brick, conventional maintenance makes after the demoulding.The shortcoming of this method is: relative higher as the cost of tackiness agent with the aluminium stone flour with high-alumina cement, secondly, the adobe curing time is longer, is unfavorable for industrial production.
Summary of the invention
The objective of the invention is to overcome and above-mentionedly existing add the deficiency of protecting, what provide that a kind of yellow phosphorus slag and modified ardealite make is non-burning brick and preparation method thereof.This non-burning brick raw material is easy to get, industrial residue utilization rate height, and production technique is simple, the cycle is short, and product strength height, quality are good, have good economic benefits and social benefit.
Technical scheme of the present invention is: it is non-burning brick that yellow phosphorus slag and modified ardealite prepare, and is prepared by following materials of weight proportions:
Yellow phosphorus slag 65～75%
Modified ardealite 25～35%
Sand 5～10%
Cement 3～5%
Water 5～10%.
Mix flyash, unslaked lime etc. in the described modified ardealite as properties-correcting agent, cold condition promptly carry out anhydrous calcining modification under 200～300 ℃ and, fluorine content is lower than 0.1% in the modified ardealite, phosphorus pentoxide content is lower than 0.3%.
Described non-burning brick be solid standard brick or Brick with blind hole or perforated brick.
A kind of yellow phosphorus slag and modified ardealite prepare non-burning brick method, comprise pulverizing, batching, mix stirring, high-pressure molding, the demoulding, vapor cure operation, it is characterized in that making finished product by following step:
A, yellow phosphorus slag, modified ardealite and sand are crushed to granularity less than 3mm with sample pulverizer, press: yellow phosphorus slag 65～75%, modified ardealite 25～35%, sand 5～10%, cement 3～5%, water 5～10% is prepared burden;
B, the material that will prepare carry out thorough mixing and stir in cement mortar mixer;
C, well-mixed batching is pressed into adobe with pressure forming machine;
D, adobe is positioned over the vapor cure case under 60～80 ℃, carries out vapor cure 6～8 hours, obtain described product.
Mix flyash, unslaked lime etc. in the described modified ardealite as properties-correcting agent, under cold condition (200～300 ℃) carry out anhydrous calcining modification and, fluorine content is lower than 0.1% in the modified ardealite, phosphorus pentoxide content is lower than 0.3%.
Advantage of the present invention is:
(1) adopt anhydrous low temperature calcination method that phosphogypsum is carried out modification, various impurity had both been eliminated in the phosphogypsum to the influence of its follow-up use, make the modified ardealite performance reach the requirement that building materials use, the secondary pollution that has produced when having avoided methods such as washing to handle phosphogypsum again, simultaneously, carry out modification at a lower temperature, both met energy-saving and cost-reducing policy, help the realization and the development of industrialization again.
(2) of the present invention non-burning brick, the utilization ratio of solid waste is 87～93%, and utilization ratio height, utilization are big, turn waste into wealth, and belong to novel environmental-friendly construction material.
(3) of the present invention non-burning brick, its raw material is easy to get, production technique is simple, employing vapor cure can be accelerated the reaction between the raw material, shorten the production cycle, reduce production costs, can improve the pressure-proof and snap-resistent performance of fragment of brick simultaneously, product strength height, quality are good, meet the standard-required of " the non-fired common brick of JC422-1991 (1996) ".
(4) of the present invention non-burning brick; avoid big area to dig and adopted environment and the ecological damage that causes; ecological significant to preventing erosion, protecting; the energy and land resources have been saved; the whole process of production environmental protection and waste utilization; meet the requirement of recycling industries and clean production, have better economic and be worth and high social.
Description of drawings
Fig. 1 is the non-burning brick technological process of production figure of the present invention.
Embodiment
Non-burning brickly finish according to the following steps:
1, material chemical component: the main chemical compositions of yellow phosphorus slag and modified ardealite sees Table 1 and table 2 respectively.
The main chemical compositions of table 1 yellow phosphorus slag
The main chemical compositions of table 2 modified ardealite
| Title | CaO | SiO 2 | Al 2O 3 | Fe 2O 3 | P 2O 5 | F | SO 2 |
| Massfraction/% | 30～38 | 614 | 0.28～2.85 | 0.08～1.31 | 0.11～0.28 | 0.05～0.09 | 39～51 |
Wherein, modified ardealite is to mix flyash, unslaked lime etc. according to a certain weight ratio as properties-correcting agent in phosphogypsum, under cold condition (200～300 ℃) carry out anhydrous calcining modification and, calcination process had not only fully been removed and has been adhered to moisture content in the phosphogypsum but also eliminated the influence of fluorine, phosphorus, organic matter etc. in the phosphogypsum, after the modification in the phosphogypsum fluorine content be lower than 0.1%, phosphorus pentoxide content is lower than 0.3%, meets the requirement of producing building materials.
The ratio of each raw material (weight percent) is:
Yellow phosphorus slag 65～75%
Modified ardealite 25～35%
Sand 5～10%
Cement 3～5%
Water 5～10%
2, preparation method:
Yellow phosphorus slag, modified ardealite and sand are crushed to granularity less than 3mm, stir after in proportion each raw material being mixed, high-pressure molding, the demoulding, 60～80 ℃ of vapor cures, carry out service check at last, and what be up to the standards is finished product.Material property meets the standard-required of " the non-fired common brick of JC422-1991 (1996) ".
Embodiment 1:
With yellow phosphorus slag 75%, modified ardealite 25%, sand 8% (weight percent) be crushed to granularity less than 3mm after, mix cement 5%, add water 7% and mix stirring, high-pressure molding, the demoulding, 60～80 ℃ of vapor cures, carry out the service check of product at last.Wherein, the vapor cure time is about 6～8 hours.
Product performance are as follows after measured:
Ultimate compression strength 10.6Mpa;
Folding strength 2.7Mpa;
Meet the requirement of " the non-fired common brick of JC422-1991 (1996) " standard.
Embodiment 2:
With yellow phosphorus slag 72%, modified ardealite 28%, sand 5% (weight percent) be crushed to granularity less than 3mm after, mix cement 5%, add water 8% and mix and stir, other operation is identical with embodiment 1.
Product performance are as follows after measured:
Ultimate compression strength 10.8Mpa;
Folding strength 2.3Mpa;
Meet the requirement of " the non-fired common brick of JC422-1991 (1996) " standard.
Embodiment 3:
With yellow phosphorus slag 68%, modified ardealite 32%, sand 10% (weight percent) be crushed to granularity less than 3mm after, mix cement 3%, add water 10% and mix and stir, other operation is identical with embodiment 1.
Product performance are as follows after measured:
Ultimate compression strength 10.2Mpa;
Folding strength 2.3Mpa;
Meet the requirement of " the non-fired common brick of JC422-1991 (1996) " standard.
Embodiment 4:
With yellow phosphorus slag 65%, modified ardealite 35%, sand 7% (weight percent) be crushed to granularity less than 3mm after, mix cement 3%, add water 5% and mix and stir, other operation is identical with embodiment 1.
Product performance are as follows after measured:
Ultimate compression strength 10.1Mpa;
Folding strength 2.4Mpa;
Meet the requirement of " the non-fired common brick of JC422-1991 (1996) " standard.
Claims (5)
1. the preparation of yellow phosphorus slag and modified ardealite is non-burning brick, it is characterized in that being prepared by following materials of weight proportions:
Yellow phosphorus slag 65～75%
Modified ardealite 25～35%
Sand 5～10%
Cement 3～5%
Water 5～10%.
2. non-burning brick according to the preparation of the described yellow phosphorus slag of claim 1 and modified ardealite, it is characterized in that: mix flyash, unslaked lime etc. in the described modified ardealite as properties-correcting agent, cold condition promptly carry out anhydrous calcining modification under 200～300 ℃ and, fluorine content is lower than 0.1% in the modified ardealite, and phosphorus pentoxide content is lower than 0.3%.
3. non-burning brick according to the preparation of the described yellow phosphorus slag of claim 1 and modified ardealite is characterized in that: described non-burning brick be solid standard brick or Brick with blind hole or perforated brick.
4. yellow phosphorus slag and modified ardealite prepare non-burning brick method, comprise pulverizing, batching, mix stirring, high-pressure molding, the demoulding, vapor cure operation, it is characterized in that making finished product by following step:
A, yellow phosphorus slag, modified ardealite and sand are crushed to granularity less than 3mm with sample pulverizer, press: yellow phosphorus slag 65～75%, modified ardealite 25～35%, sand 5～10%, cement 3～5%, water 5～10% is prepared burden;
B, the material that will prepare carry out thorough mixing and stir in cement mortar mixer;
C, well-mixed batching is pressed into adobe with pressure forming machine;
D, adobe is positioned over the vapor cure case under 60～80 ℃, carries out vapor cure 6～8 hours, obtain described product.
5. yellow phosphorus slag according to claim 1 and modified ardealite prepare non-burning brick method, it is characterized in that: mix flyash, unslaked lime etc. in the described modified ardealite as properties-correcting agent, under cold condition (200～300 ℃) carry out anhydrous calcining modification and, fluorine content is lower than 0.1% in the modified ardealite, and phosphorus pentoxide content is lower than 0.3%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102976015A CN101973747B (en) | 2010-09-30 | 2010-09-30 | Method for preparing baking-free brick from yellow phosphorus slag and modified phosphogypsum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102976015A CN101973747B (en) | 2010-09-30 | 2010-09-30 | Method for preparing baking-free brick from yellow phosphorus slag and modified phosphogypsum |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101973747A true CN101973747A (en) | 2011-02-16 |
| CN101973747B CN101973747B (en) | 2012-10-31 |
Family
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103524099A (en) * | 2013-10-28 | 2014-01-22 | 瓮安县日升新型环保建材有限责任公司 | Phosphorus slag silicate building block and production process |
| CN104725015A (en) * | 2015-02-04 | 2015-06-24 | 贵州开磷集团股份有限公司 | Ardealite substrate wood imitating wall brick and preparation method thereof |
| CN104725006A (en) * | 2015-02-04 | 2015-06-24 | 贵州开磷集团股份有限公司 | Phosphogypsum-based stone-like structure building material and preparation method thereof |
| CN104761221A (en) * | 2015-02-04 | 2015-07-08 | 贵州开磷集团股份有限公司 | Phosphogypsum-based imitation wood-floor-structured building material and preparation method thereof |
| CN104761218A (en) * | 2015-02-04 | 2015-07-08 | 贵州开磷集团股份有限公司 | Phosphogypsum-based imitation platycladus orientalis-structured building material and preparation method thereof |
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| CN106242631A (en) * | 2016-08-11 | 2016-12-21 | 安庆太极新型建材开发有限公司 | A kind of micropore sintered brick of energy-conserving and environment-protective adding modified ardealite |
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| CN107989651A (en) * | 2017-11-27 | 2018-05-04 | 固岩科技发展有限公司 | A kind of method in foam phosphorus slag material filling mine |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104761227B (en) * | 2015-02-04 | 2016-08-24 | 贵州开磷集团股份有限公司 | A kind of artificial grantie materials for wall and preparation method thereof |
| CN104725006A (en) * | 2015-02-04 | 2015-06-24 | 贵州开磷集团股份有限公司 | Phosphogypsum-based stone-like structure building material and preparation method thereof |
| CN104761221A (en) * | 2015-02-04 | 2015-07-08 | 贵州开磷集团股份有限公司 | Phosphogypsum-based imitation wood-floor-structured building material and preparation method thereof |
| CN104761218A (en) * | 2015-02-04 | 2015-07-08 | 贵州开磷集团股份有限公司 | Phosphogypsum-based imitation platycladus orientalis-structured building material and preparation method thereof |
| CN104761227A (en) * | 2015-02-04 | 2015-07-08 | 贵州开磷集团股份有限公司 | Granite-imitation wall body material and preparation method thereof |
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