CN1786083A - Aluminium oxide active high light filler composition - Google Patents
Aluminium oxide active high light filler composition Download PDFInfo
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- CN1786083A CN1786083A CN 200510132184 CN200510132184A CN1786083A CN 1786083 A CN1786083 A CN 1786083A CN 200510132184 CN200510132184 CN 200510132184 CN 200510132184 A CN200510132184 A CN 200510132184A CN 1786083 A CN1786083 A CN 1786083A
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- aluminium oxide
- high light
- light filler
- filler composition
- oxide active
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Abstract
The present invention relates to an alumina high-activity light filler composite. Said invention adopts neutral silicate mineral and low-neutrality alumina mineral as main ceramic raw material, adds active chemical additive as auxiliary material and adopts a special production process to synthesize and produce the invented product. The diameter of said product is 220-240mm, pore diameter is 25-80mm, pore rate is 7-37 and its wall thickness is 5-6mm, its pore form is circular form and orthohexagonal form, and its porosity is 35%-40% and its water-absorption rate is up to 25-28%.
Description
Technical field
The present invention relates to the aluminium oxide active high light filler composition of high-technology field, be widely used in being indispensable mass transfer novel material in field, especially the coker devices such as chemical industry, oil refining, metallurgy, environmental protection.Belong to International Classification of Patents B01J19/30 " fill composition " technical field.
Background technology
As everyone knows, the magnesia light filler of available technology adopting, all exist different shortcomings, as: proportion is bigger, and specific surface area is less, and mass transfer effect is not ideal enough, ultimate compression strength is lower, mechanical shock resistance and load associativity are all not ideal enough etc., cause having a strong impact on its productivity effect and work-ing life, cause certain capital effect to the user.Facts have proved that prior art can not satisfy the processing present situation of mass transfer, purification, drying, improvement.
Summary of the invention
Purpose of the present invention is to overcome above-mentioned deficiency, and it is main raw material that neutral silicate minerals of a kind of employing and low neutral alumina mineral are provided, and is aided with the aluminium oxide active high light filler composition that part chemistry enhanced activity additive is made.
The case of technical solution of the present invention is as follows.
Aluminium oxide active high light filler composition, adopted multiple silicate minerals as follows: Liu Jia gulf clay, Xinning, Hunan kaolin, Xiang Tan quartz, talcum ore deposit (powder) are main raw material, be aided with chemical additive, the synthetic system of prescription mud, through overmolding, drying, rebuild, test technologies such as base, sintering, check, packing, below 1100 ℃ sintering temperature, make finished product.
Embodiment 1: select Liu Jia gulf clay for use, its plastic index is 0.542 grade, dry tenacity is 1.82 MPas, burning till contraction percentage is 16.55%, burning till the pore percentage is 39.42%, burning till the suction percentage is 21.13%, 1350 ℃ of high temperature resistant degree, and mineral content comprises: quartz, hydromica, kaolinite, middle celestial stone (650 ℃ of liquefactents).
Xinning, described Hunan kaolin, its chemical element and content are: SIO2:45.41%, AL2O3:35.71%, FE2O3:0.34%, CAO:0.80%, K2O:2.00%, NA2O:2.39%, vector 13.29% burns.
Aluminium oxide active high light filler composition of the present invention, its prescription is composed as follows:
Liu Jia gulf clay 35-40%, Xinning, Hunan kaolin 40-45%, the quartzy 15-10% in Xiang Tan, Hunan, talcum ore deposit (powder) 6-3%, additive 4-7%.
Embodiment 2:
Porcelain stone under the Qing Shu of Jiangxi: its index of plasticity is 0.921 grade, dry anti-strong 1.53 MPas, burning till contraction percentage is 22.91%, burning till true pore percentage is 29.40%, burning till the suction percentage is 11.41%, 1350 ℃ of high temperature resistant degree, mineral content comprises: quartz, kaolinite, feldspar, hydromica, middle celestial stone (650 ℃ of liquefactents).
The kaolinic chemical composition content in Huang Mao garden, Hunan following (weight %):
SiO2:45.62, Al2O3:39.13, Fe2O3:0.05, CaO:0.23, MgO:0.08, K2O-Na2O: vestige, burn and lose 16.07.
It is composed as follows to fill a prescription:
Porcelain stone 38-42% under the Qing Shu of Jiangxi, Huang Mao garden kaolin 36-40%, quartzy 12-14%, talcum sand (powder) 6-7%, additive 8-6%.
Above-mentioned raw materials synthesizes ball milling system mud, handles through vacuum forming.
The chemical composition content of aluminium oxide active high light filler composition is as follows: SiO2:50.71-60%, Al2O3:34.69-24%, Fe2O3:0.064-0.030%, CaO:1.90-0.9%, MgO:1.04-2.0%, K2O:2.04-1.90%, Na2O:2.94-1.58%, vector 6.7-9.6% burns.
The present invention has fully utilized the silicate minerals of low bulk and the meltable loss of low temperature, more utilized simultaneously alumina article intensity height, chemical reaction in art breading, make liquid phase change the characteristics of active phase, with unique manufacturing process, rational selected raw material has thoroughly changed the deficiencies in the prior art part.On the basis of original technology, improved the quantity of the pore of the natural structure in different apertures in the product, void content reaches 35-40%, water-intake rate reaches 25-28%, specific surface area increases, and pressure intensity has improved more than two to three times, and has improved the adaptive faculty of load, thereby work production efficiency and life cycle have been improved greatly, for the user has saved great amount of investment.
Being compared as follows of beneficial effect of the present invention and prior art: (seeing Table 1)
Table 1:
| Subitem | Prior art | The technology of the present invention | The remarks explanation |
| Product specification (φ) | 240-220mm | 240-220mm | |
| Aperture (φ) | 25-80mm | 25-80mm | Pass: rounded or be regular hexagon |
| Porosity (individual) | The 7-37 hole | The 7-37 hole | |
| Wall thickness | 7-8mm | 5-6mm | |
| Proportion (cubic meter) | 460-420kg | 315-356kg | |
| Specific surface area (m/m) | 124 | 213 | |
| Voidage % | 0.68 | 0.74 | |
| Void content % | 28 | 35-40 | |
| Water-intake rate % | 19 | 25-28 | |
| The refining junction temperature (℃) | 1350 | Be lower than 1100 |
Description of drawings
Fig. 1 is technological process of production figure of the present invention.
The specific embodiment
Referring to Fig. 1: in production process, 1, chemical composition content that must strict control primary raw material, allowable error is ± 1%. Batching adopts automatic gauge instrument system, and accuracy is ± 0.2Kg. 2, additive and mineral need to add by strict raw material proportioning.
Grog after application of vacuum must adopt special process in depositing rotten process, guarantee that moisture and the chemicals in the grog can not run off, with the ratio of first batching more than 99.9%.
It is 1100 ℃ that sintering ends fiery temperature, and precision is ± 10 ℃, is incubated 2-3 hour. In roasting process, should at first control the draining discharge opeing, temperature utilizes vexed oxidizing flame slowly to heat up at 300-700 ℃, and the time of draining part, drain time was in 4 hours within 3 hours. Intensification 500-700 ℃, adopt neutral flame, guarantee active life power.
About active additive, the present invention adopts chemical enhanced activity additive, and the combustible additive of original employing: such as useless grass, wooden slag, leaf, crops thing skull etc., its performance characteristics contrast separately is as follows:
1, chemical enhanced activity additive: active power is strong, and the microdilatancy performance is arranged, and the porosity is even, without the trace slag, can strengthen the support strength of pore, ensures the integrally-built performance of product, can satisfy the designing requirement of required activity, and easy-to-use, cost is lower.
2, combustible additive: such as useless grass, wooden slag, leaf, crops thing skull etc.: must increase production technology, be processed into powder, increase production cost; Active power is relatively poor, and the porosity is inhomogeneous; In pore, leave the trace slag; Support strength to pore is relatively poor, and the structural strength of product is not ideal enough; Be difficult to satisfy the active requirement of design.
Claims (5)
1, a kind of aluminium oxide active high light filler composition, it is characterized in that: be that neutral silicate minerals of employing and low neutral alumina mineral are main ceramic raw material, be aided with the activity chemistry additive, adopt the synthetic product of making of special producing technology, its technological process comprises: synthesize, make mud, refining just, vacuum, moulding, drying, repaired biscuit, sintering, check, packing.
2, aluminium oxide active high light filler composition according to claim 1 is characterized in that: described neutral silicate minerals, and its various indexs are as follows:
0.542 grade of plastic index, dry tenacity 1.82 MPas are burnt till contraction percentage 16.55%, burn till true pore percentage 39.42%, burn till suction percentage 21.13%, 1350 ℃ of refractory temperatures;
Its synthetic chemistry index control is as follows:
SiO2:50.71-60%, Al2O3:34.69-24%, Fe2O3:0.064-0.03%, CaO:1.9-0.9%, MgO:1.04-2.0%, K2O:2.04-1.9%, NaO:2.94-1.58%, vector 6.7-9.6% burns.
3, aluminium oxide active high light filler composition according to claim 1, it is characterized in that: its prescription is: silicate minerals ceramic raw material Liu Jia gulf clay 35-40%, Xinning, Hunan kaolin 40-45%, the quartzy 15-10% in Xiang Tan, Hunan, high magnesium talcum breeze 6-3%, high-strength active additive 4-7%.
4, aluminium oxide active high light filler composition according to claim 1 is characterized in that: its preparation technology's main points are: end fiery temperature and be lower than 1100 ℃, recovery time 2-3 hour, insulation precision ± 10 ℃ were incubated 2-3 hour;
In roasting process, at first control the draining discharge opeing, temperature utilizes vexed oxydizing flame slowly to heat up at 300-700 ℃, and water discharge time is within 3 hours, and drain time is in 4 hours; Between temperature 500-700 ℃, adopt neutral oxydizing flame, guarantee active life power.
5, aluminium oxide active high light filler composition according to claim 1 is characterized in that: its product specification is as follows:
Product size φ 220-240mm varies in size; Aperture φ 25-80mm, porosity number 7-37, the wall thickness between the Kong Yukong is 5-6mm, pass is rounded or is regular hexagon that a plurality of apertures connect formation product in aggregates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510132184 CN1786083A (en) | 2005-12-23 | 2005-12-23 | Aluminium oxide active high light filler composition |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510132184 CN1786083A (en) | 2005-12-23 | 2005-12-23 | Aluminium oxide active high light filler composition |
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| CN1786083A true CN1786083A (en) | 2006-06-14 |
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| CN 200510132184 Pending CN1786083A (en) | 2005-12-23 | 2005-12-23 | Aluminium oxide active high light filler composition |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101862636A (en) * | 2010-06-13 | 2010-10-20 | 萍乡市江华环保设备填料有限公司 | Proppant for petrochemical reactors and preparation method thereof |
| CN109715583A (en) * | 2016-09-26 | 2019-05-03 | 喜利得股份公司 | Bi-component plaster material and application thereof |
-
2005
- 2005-12-23 CN CN 200510132184 patent/CN1786083A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101862636A (en) * | 2010-06-13 | 2010-10-20 | 萍乡市江华环保设备填料有限公司 | Proppant for petrochemical reactors and preparation method thereof |
| CN101862636B (en) * | 2010-06-13 | 2012-11-21 | 萍乡市江华环保设备填料有限公司 | Proppant for petrochemical reactors and preparation method thereof |
| CN109715583A (en) * | 2016-09-26 | 2019-05-03 | 喜利得股份公司 | Bi-component plaster material and application thereof |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
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