CN100398479C - Artificial diopside material and its preparation method - Google Patents
Artificial diopside material and its preparation method Download PDFInfo
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- CN100398479C CN100398479C CNB2004100408572A CN200410040857A CN100398479C CN 100398479 C CN100398479 C CN 100398479C CN B2004100408572 A CNB2004100408572 A CN B2004100408572A CN 200410040857 A CN200410040857 A CN 200410040857A CN 100398479 C CN100398479 C CN 100398479C
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- diopside
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Abstract
The present invention relates to an artificial diopside material and a preparation method thereof, particularly to an artificial dekalbite crystalline material and a preparation method thereof. Natural minerals of silica sand, sulfur iron tailings, kaoline, albite, limestone, dolomite, etc. used as main raw materials, mixed, smelted, formed, annealled, cored, crystallized and the like, and then, the material is prepared. The material is prepared from the proportioning chemical constituents in weight percentage: 47 to 61% of SiO2, 4 to 9% of Al2O3, 12 to 20% of CaO, 4 to 7% of MgO, 2 to 15% of TiO2, 3 to 7% of NaO2 and KO2, 1 to 4% of ZrO2, 0 to 4% of ZnO, 1 to 4% of P2O5, 1 to 3% of F, and 1 to 3% of C. The dekalbite crystalline material is made of micrometer crystal grains, and the dekalbite crystalline material has the characteristics of high density, good mechanical performance, abrasion resistance, corrosion resistance, good shock resistance performance, no radioactivity, etc.
Description
Technical field
The present invention relates to a kind of artificial diopside section bar and preparation method thereof, the natural mineral that particularly adopts non-diopside is the processing method that main raw material prepares the diopside section bar.The invention belongs to the mineral material field.
Background technology
Diopside (Diopside) is single catenate silicate minerals, and structural formula is CaMg[Si
2O
6], Mg wherein
2+Often can be replaced, as Fe by other ion
2+, Fe
3+, Al
3+, Cr
3+Deng, thereby form Ca (Mg
2+, Fe
2+, Fe
3+, Al
3+) [Si
2O
6] sosoloid.The theoretical chemistry of diopside consists of SiO
255.6%, CaO 25.9%, and MgO 18.5%, belongs to oblique system, and crystal is a short cylinder, and aggregate in pelletized form or radial is seen light green or light gray, vitreous luster, hardness 5.5～6,1391 ℃ of fusing points, water insoluble and hydrochloric acid, density 3.27～3.38g/cm more
3Natural diopside often contains impurity such as Cr, Mn, Fe, V, and the diopside chemical stability is good, is insoluble to HCl, and wear resistance is good, does not contain organism, no crystal water.
Natural diopside derives from diopsidite, diopsidite is a kind of many mineral compositions rock, except that diopside, diopsidite contains mineral such as wollastonite, quartz, calcite, the tremolite, phosphatic rock, feldspar, wernerite, biotite, aspidelite, garnet toward contact.Therefore, occurring in nature except that gem-jade, rare bistagite.
Diopsidite is because of it is widely distributed, inexpensive, purposes is subject to people's attention greatly day by day.At first, as ceramic raw material, diopside can reduce the firing temperature of pottery, shorten firing period, play energy-conserving action, be ideal low temperature fast firing raw material [[1] Geng Qian. analyse its application [J] pottery from the constitutional features of diopside. the Hebei pottery, 2002,35 (4): 8-10; [2] Huang Huining. utilize diopside development low temperature fast firing ornamental brick. ceramic research, 1994,9:28-35; [3] Wang Ling. new ceramics energy-saving material-diopside. Jiangsu building materials, 1998, (1): 33-34].Secondly, diopside can be used to make metallurgical protective slag, can make the protection steel in the cast steel ingot process not oxidized, and make surface of steel ingot bright and clean, reduces the loss that strips off the skin.Diopside also can be used as the filler of rubber, plastics, also can be used for producing coating etc. [know non-. the utilization of the diopside and the tremolite. building materials industry information, 1995 (21): 5].
By retrieval, do not find artificial patent application or the bibliographical information of making the bistagite material.
Summary of the invention
The objective of the invention is, it is the processing method that the main raw material preparation has the artificial diopside material of good characteristic such as high-strength, wear-resisting, corrosion-resistant, "dead" that a kind of natural mineral that adopts non-diopside is provided.The present invention is that main raw material prepares artificial diopside preparation methods with the natural mineral of non-diopside, and following processing step is arranged:
(1) be (weight percent) SiO by chemical constitution
247～61%, Al
2O
34～9%, CaO 12～20%, MgO4～7%, TiO
22～15%, NaO
2+ KO
23～7%, ZrO
21～4%, ZnO 0～4%, P
2O
51～4%, F 1～3%, and C 1～3%, selects required raw mineral materials to carry out weigh batching, and thorough mixing is even, and makes the total water content of admixtion remain on 3～5%.
(2) admixtion that step (1) is prepared is 1450 ± 5 ℃ of following fusions, and the melt after clarification, homogenizing is poured in the mould, and cooling forming is the section bar of desired shape.
(3) the work in-process section bar that step (2) is obtained is warming up to 700 ℃ with the speed of 2～3 ℃/min, is incubated after 2 hours, is warming up to 950 ℃ with same speed, is incubated 2 hours, slowly cools to room temperature then.
(4) product that as required step (3) is obtained grinds, polishes, cuts.
With above-mentioned steps, the product that makes is accredited as the bistagite crystalline phase through X-ray diffraction and scanning electronic microscope, crystal grain is tiny, be evenly distributed, average grain size is 1.5～4 μ m, single crystal is short cylinder, minority is a sheet, and aggregate becomes compact grained, and crystal is intertwined to form the microtexture of staggered superposition.
This diopside section bar has characteristics such as high-strength, wear-resisting, corrosion-resistant, "dead".Actual test result is: density: 3.09～3.15g/cm
3Ultimate compression strength: 700～1000MPa; Wear-resisting value (mill hole length): 15～18mm; Young's modulus: 80.9～96.6 * 10
3MPa; Shore hardness: 90～95; Water-intake rate: 0%; Water ratio: 0.2～0.25%; Acid resistance is (at 20%H
2SO
4Boil the rate of weight loss after 1 hour in the solution): 0.5～2.0%; Alkali resistance (in 1%NaOH solution, boiling the rate of weight loss after 1 hour): 0.5～1.0%; Radioactivity: do not have.
The diopside goods of the present invention's preparation are compared with natural diopside, and following evident characteristic is arranged:
1. the batching chemical ingredients of the artificial diopside material of preparation of the present invention's employing and the theoretical chemistry composition of natural diopside have than big-difference, but are in Al
2O
3Content is 10% CaO-MgO-SiO
2In the diopside phase region of ternary phase diagrams, in the batching chemical constitution of this artificial diopside material of preparation, SiO
2, Al
2O
3, CaO, MgO be essentially consist, NaO
2+ KO
2Be fusing assistant, TiO
2, ZrO
2, ZnO, P
2O
5, F forms compound nucleus agent, C is a reductive agent.
2. the diopside section bar crystalline phase purity height of the present invention preparation.Natural diopside derives from diopsidite, and diopsidite is a kind of many mineral compositions rock, and except that diopside, diopsidite also contains mineral such as wollastonite, quartz, calcite, the tremolite, phosphatic rock, feldspar, wernerite, biotite, aspidelite, garnet.Therefore, except that gem-jade, the rare bistagite of occurring in nature.
3. the degree of crystallinity height of the diopside section bar of the present invention preparation, average grain size is about 1.5～4 μ m, and crystal grain is fine, and natural diopsidite size of microcrystal is generally 10
-2M～10
1Cm.
4. the present invention can prepare diopside sheet material, also can use mould to prepare the diopside section bar of different shape.The common surperficial rift of natural diopside is grown, and is more coarse, the rate of decay height, the difficult section bar of exploiting into, usually only with the form of fragment, powder as the addition material of other goods of preparation, filler etc.
5. the diopside section bar ultimate compression strength of the present invention's preparation reaches 700～1000MPa, and wear-resisting value (mill hole length) is 15～18mm, and Young's modulus is 80.9～96.6 * 1O
3MPa, Shore hardness is 90～95, acid resistance is (at 20%H
2SO
4Boil the rate of weight loss after 1 hour in the solution) be 0.5～2.O%, alkali resistance (boiling the rate of weight loss after 1 hour in 1%NaOH solution) is for O.5～1.0%, and is "dead".And natural diopside is bigger owing to crystal grain, and surperficial rift is grown, and is coarse, the rate of decay height, and radioactivity is arranged, therefore, do not see that natural diopside is used as section bar.
Embodiment
Following examples further specify the present invention, but do not limit the present invention.
Embodiment 1
The present invention be a kind of be the processing method that main raw material prepares artificial diopside sheet material with natural mineral, this technology is raw material with silica sand, albite, Wingdale, rhombspar, fluorite, titanium slag, zinc oxide, zirconium white, aluminum phosphate, graphite, by following chemical constitution (weight percent): the SiO for preparing burden
249.14%, Al
2O
37.52%, CaO 17.11%, and MgO 5.84%, TiO
210.07%, NaO
2+ KO
24.96%, ZrO
21.50%, ZnO 2.00%, P
2O
51.49%, F 1.00%, adds 1% Graphite Powder 99.The admixtion water ratio is 4%, mixes back input melting furnaces and founds, and the control glass melting temperature is 1450 ± 5 ℃.After the melt of high-temperature fusion, clarification, homogenizing is pressed into plate, plate is moved into the annealing furnace that has been warming up to 600 ℃ annealed 2 hours, to move into crystallization furnace through the work in-process that above step obtained then, speed with 2～3 ℃/min is warming up to 700 ℃, be incubated after 2 hours, be warming up to 950 ℃ with same speed, be incubated 2 hours, slowly cool to room temperature then.At last obtaining product is ground, polishes, cuts, be artificial diopside sheet material.
This artificial diopside sheet material is accredited as the bistagite crystalline phase through X-ray diffraction and scanning electronic microscope, no glassy phase exists, crystal grain is tiny, be evenly distributed, average grain size is about 1.8 μ m, and single crystal is short cylinder, and minority is a sheet, aggregate becomes compact grained, and crystal is intertwined to form the microtexture of staggered superposition.Its performance index are: density: 3.09g/cm
3Ultimate compression strength: 887.1MPa; Wear-resisting value (mill hole length): 17mm; Young's modulus: 80.9～96.6 * 10
3MPa; Shore hardness: 92.75; Water-intake rate: 0%; Water ratio: 0.24%; Acid resistance is (at 20%H
2SO
4Boil the rate of weight loss after 1 hour in the solution): 2%; Alkali resistance (in 1%NaOH solution, boiling the rate of weight loss after 1 hour): 0.5%; Radioactivity: do not have.
This artificial diopside sheet material can be used as wear-resisting, the corrosion resistant material or the building and ornament materials of enterprises such as mine, chemical industry, building.
Embodiment 2
A kind of processing method for preparing artificial diopside section bar of the present invention, this processing method is a raw material with pyrite tailing, kaolin, Wingdale, rhombspar, soda ash, fluorite, zinc oxide, zirconium white, aluminum phosphate, graphite, and the batching that is constituted has following chemical constitution (weight percent): SiO
249.60%, Al
2O
37.90%, CaO 17.10%, and MgO 5.80%, TiO
210.10%, NaO
25.00%, ZrO
21.50%, ZnO 2.00%, P
2O
51.50%, F 1.00%, adds 1% Graphite Powder 99.The admixtion water ratio is 4%, mixes back input melting furnaces and founds, and the control glass melting temperature is 1450 ± 5 ℃.Pouring the melt of high-temperature fusion, clarification, homogenizing into the grooved die for molding is grooved profile, moves into crystallization furnace then, is warming up to 700 ℃ with the speed of 2～3 ℃/min, be incubated after 2 hours, be warming up to 950 ℃ with same speed, be incubated 2 hours, slowly cool to room temperature then.At last obtaining product is carried out deburring, polishing, be artificial diopside trough material.
The product that makes is accredited as the bistagite crystalline phase through X-ray diffraction and scanning electronic microscope, no glassy phase exists, crystal grain is tiny, be evenly distributed, average grain size is about 4 μ m, and crystal is tabular and column, based on short cylinder, minority is a sheet, and aggregate becomes compact grained, and crystal is intertwined to form the microtexture of staggered superposition.This artificial diopside section bar can be used as wear-resisting, the corrosion resistant material of enterprises such as mine, chemical industry, building.
Claims (7)
1. an artificial diopside material is characterized in that by weight percentage, and each set of dispense is such as following:
SiO
247～61％，Al
2O
34～9％，CaO12～20％，MgO4～7％，TiO
22～15％，NaO
2+KO
23～7％，ZrO
21～4％，ZnO0～4％，P
2O
51～4％，F1～3％，C1～3％。
2. a kind of artificial diopside material according to claim 1 is characterized in that the thing of this material is the bistagite phase mutually, and diopside crystal grain is tiny, and average grain size is 1.5～4 μ m, and even particle size distribution.
3. technology for preparing the described artificial diopside material of claim 1 is characterized in that this technology has the following steps:
(1) batching chemical constitution according to claim 1 is selected desired raw material, carries out weigh batching, and thorough mixing is even, and makes the total water content of admixtion remain on 3～5%;
(2) admixtion that step (1) is prepared is 1450 ± 5 ℃ of following fusions, and the melt after clarification, homogenizing is poured in the mould, and cooling forming is the section bar of desired shape;
(3) the work in-process section bar that step (2) is obtained is warming up to 700 ℃ with the speed of 2～3 ℃/min, is incubated after 2 hours, is warming up to 950 ℃ with same speed, is incubated 2 hours, slowly cools to room temperature then;
(4) product that as required step (3) is obtained grinds, polishes, cuts.
4. artificial diopside material according to claim 1 is characterized in that, having adopted weight percent in the feed composition proportioning is 2～15%TiO
2, 1～4%ZrO
2, 0～4%ZnO, 1～4%P
2O
5, the compound crystallization agent of 1～3%F.
5. the technology of the artificial diopside material of preparation according to claim 3, it is characterized in that, the said desired raw material of step in the claim 3 (1) is that the natural mineral with non-diopside is a main raw material, and the natural mineral raw of said non-diopside is silica sand and albite and Wingdale and rhombspar herein.
6. the technology of the artificial diopside material of preparation according to claim 3, it is characterized in that, the said desired raw material of step in the claim 3 (1) is that the natural mineral with non-diopside is a main raw material, and the natural mineral raw of said non-diopside is pyrite tailing and kaolin and Wingdale and rhombspar herein.
7. artificial diopside material according to claim 1, the ultimate compression strength that it is characterized in that said artificial diopside material is 700～1000MPa; Wear-resisting value with mill hole length-gauge is 15～18mm; Young's modulus is 80.9～96.6 * 10
3MPa; Shore hardness is 90～95; With at 20%H
2SO
4The acid resistance of boiling the rate of weight loss meter after 1 hour in the solution is 0.5～2.0%; Be 0.5～1.0% in the alkali resistance of in 1%NaOH solution, boiling the rate of weight loss after 1 hour, "dead".
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|---|---|---|---|
| CNB2004100408572A CN100398479C (en) | 2004-10-18 | 2004-10-18 | Artificial diopside material and its preparation method |
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|---|---|---|---|
| CNB2004100408572A CN100398479C (en) | 2004-10-18 | 2004-10-18 | Artificial diopside material and its preparation method |
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| CN100398479C true CN100398479C (en) | 2008-07-02 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100383084C (en) * | 2006-10-10 | 2008-04-23 | 辽宁科技大学 | Method for producing forsterite refractory using iron tailings |
| CN101066841B (en) * | 2007-06-08 | 2010-07-28 | 沈阳化工学院 | Process of preparing transparent glass ceramic with waste xiuyan jade |
| CN102910827B (en) * | 2012-11-16 | 2014-10-22 | 中国地质科学院 | Novel wear-resisting plate produced by using waste moulding sand and preparation method of plate |
| CN109279783B (en) * | 2018-11-13 | 2021-12-10 | 西南科技大学 | Microcrystalline glass with raw materials including chlorine-containing titanium extraction slag |
| CN114108091B (en) * | 2021-11-19 | 2022-09-13 | 中国科学院地球化学研究所 | Preparation method of diopside single crystal with high nickel, high zinc and high water content under high temperature and high pressure |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1435390A (en) * | 2002-01-28 | 2003-08-13 | 京瓷株式会社 | Dielectric ceramic composition and dielectric ceramic |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1435390A (en) * | 2002-01-28 | 2003-08-13 | 京瓷株式会社 | Dielectric ceramic composition and dielectric ceramic |
Non-Patent Citations (2)
| Title |
|---|
| 透辉石在陶瓷工业中的应用. 秦麟卿等.陶瓷工程,工艺与实践. 2001 |
| 透辉石在陶瓷工业中的应用. 秦麟卿等.陶瓷工程,工艺与实践. 2001 * |
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