CN101966995A - Method for synthesizing sodium alumino silicate crystal with jade property - Google Patents
Method for synthesizing sodium alumino silicate crystal with jade property Download PDFInfo
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- CN101966995A CN101966995A CN 201010284879 CN201010284879A CN101966995A CN 101966995 A CN101966995 A CN 101966995A CN 201010284879 CN201010284879 CN 201010284879 CN 201010284879 A CN201010284879 A CN 201010284879A CN 101966995 A CN101966995 A CN 101966995A
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Abstract
The invention discloses a method for synthesizing a sodium alumino silicate crystal with jade property. The method comprises the following steps of: generating monomer sodium alumino silicate (NaAlSiO4) by aluminum hydroxide and sodium silicate serving as initial raw materials through a NaOH catalytic reaction; allowing the prepared monomer sodium alumino silicate to mix and react with inorganic acid and sodium silicate solution to obtain sodium alumino disilicate (NaAlSi2O6) solid powder; and preparing the sodium alumino silicate polycrystal with jade property through a high-temperature polymerization reaction. The method has the advantages that: 1, the method adopts low-price raw materials, synthesis of the monomer sodium alumino silicate and the sodium alumino disilicate is performed under normal pressure and at a low temperature, and simple reacting equipment, simple operation and small energy consumption ensure lower cost for synthesizing jade; and 2, the jade material synthesized by the method has glass luster, glitter, high transparency, high hardness and high strength, has higher elastic function, and can be further carved into high-grade vessels and craftworks.
Description
Technical field
The present invention relates to the synthetic field of jewel and jade, particularly a kind of lagoriolite crystalline synthetic method with jade characteristic.
Background technology
Jewel and jade are regarded as the thing that luckiness is avoided evil spirits from ancient times, be noblely, pure buy, elegant, rich and honour, peaceful and comfortable, happy symbol, compare with gold and silver, jewel and jade have the effect of explaining will and value preserving concurrently except that slightly better attractive in appearance.Because the storage capacity rareness of natural gemstone and jade, can not satisfy social needs, along with the reach of science, people are by synthetic multiple jewel of artificial means and jade, make jewel and jade be transformed into a kind of renewable resources, to satisfy human social demand by rare mineral wealth.The synthetic jewel has experienced nearly 100 years history, and nowadays common synthetic gem has synthetic ruby on the jewelry market, synthetic sapphire, synthetic starlight ruby, synthetic emerald, synthetic spinel, titania and synthetic opal etc.Synthesis of cubic zirconium white, yttrium pyralspite, GGG (GGG) and strontium titanate have the water caltrop structure and the optical characteristics of diamond, become the imitation of diamond.The method of synthetic gem mainly contains 4 kinds of flame melt method, scorification, hydrothermal growth process and fusing assistant flux growth methods.
The synthetic jade is mainly around emerald synthetic, quartzy synthetic, agate synthetic and quartzy synthetic.Wherein quartzy synthetic, agate synthetic and quartzy synthetic are succeedd and are realized commodity production, because emerald has special construction and chemical property, synthetic difficulty is big, though AM General company has synthesized successfully, but be subjected to the restriction of cost, the commercialization production in enormous quantities of still being unrealized so far.
Though, synthetic multiple hard mass and jade still are subjected to the restriction of synthetic technology in the society, and the cost of synthetic jewel and jade is also very high, current synthetic jewel and jade are used in high-grade luxury goods more, can't be widely used in human daily living article and home decoration articles for use.Therefore, the jade material of synthesizing new satisfies human daily living article and home decoration articles for use and is necessary.
Summary of the invention
The present invention provides a kind of lagoriolite crystalline synthetic method with jade characteristic.The technical process of this synthetic method is: with aluminium hydroxide and water glass is initial feed, through the NaOH catalyzed reaction, generates single lagoriolite (NaAlSiO
4), the single lagoriolite that obtains again with inorganic acid solution and sodium silicate solution hybrid reaction, obtain two lagoriolite (NaAlSi of homogeneous
2O
6) pressed powder, become block through high temperature polymerization at last, the two lagoriolite crystal that obtain having the jade characteristic.Synthesis process flow diagram such as accompanying drawing 1, synthetic particular content comprises:
1. single lagoriolite (NaAlSiO
4) pressed powder is synthetic
In reactor, at first add aluminium-hydroxide powder, sodium silicate aqueous solution and catalyzer sodium hydroxide, aluminium hydroxide and water glass mol ratio are 0.5～1.0; The mol ratio of sodium hydroxide and aluminium hydroxide is 0.2～2.0, and 10～120 ℃ of temperature of reaction are kept reaction 2～48 hours, and reaction produces single lagoriolite solid precipitation, after filtration single lagoriolite solid precipitation, chemical equation is expressed as:
2. two lagoriolite NaAlSi
2O
6Pressed powder is synthetic
Get single water glass sodium solid dispersed in water, add inorganic acid solution and regulate acidity-basicity ph=3～8, add sodium silicate solution again with single lagoriolite equimolar amount, keep 10～100 ℃, reacted 12～72 hours, behind the stopped reaction, filter and obtain two lagoriolite pressed powders, chemical equation is expressed as:
NaAlSiO
4+Na
2SiO
3+2H
+→NaAlSi
2O
6+3Na
++H
2O
3. two lagoriolite high temperature polymerizations reaction
The two lagoriolite solids that obtain through swager moulded section, are transferred in the high-temperature reactor polymerization reaction take place under 950～1150 ℃ of conditions, reaction times 4-48h, the compound polycrystal of two lagoriolites that obtains having the jade characteristic.Through chiseling and carving processing, just obtain two lagoriolite crystal jade devices again.
The present invention has the following advantages:
(1) single lagoriolite and two single lagoriolites are synthetic is to carry out at normal pressure and cold condition, and conversion unit is simple, and is simple to operate, and energy consumption is little;
(2) raw material that reacts as high temperature polymerization with one matter composition (two single lagoriolites) and a small amount of additive, this reaction only relates to the change of molecular conformation, do not relate to the change of the chemical bond between the atom, thereby obtain the jade material of high-crystallinity, degree of crystallinity can reach 90-98%;
(3) the synthetic lagoriolite crystal with jade characteristic of the inventive method has vitreous luster, and is glittering and translucent, the transparency height, and hardness height, intensity are big, have the higher elasticity function.
(4) synthetic gems can further be chiseled and carved processing, makes high-grade vessel, artwork and high-grade house ornament.
(5) adopt cost of material low, simple to operate, make the cost of this synthetic gems lower, can satisfy the cost requirement of production daily life with device and house ornament.
Description of drawings
Fig. 1 is a kind of process flow sheet with lagoriolite crystalline synthetic method of jade characteristic of the present invention.
Embodiment
Below in conjunction with embodiment the present invention is further described.
Embodiment 1
1. single lagoriolite pressed powder is synthetic
In reactor, at first add 120-300 purpose Al (OH)
3Powder, sodium silicate aqueous solution and small amount of N aOH catalyzer, aluminium hydroxide and water glass mol ratio are 0.5; The mol ratio of sodium hydroxide and aluminium hydroxide is 2.0.Be heated to 120 ℃ of temperature, and keep reaction 2 hours, produce single lagoriolite solid precipitation, filter, get single lagoriolite solid precipitation.
2. two lagoriolite pressed powders are synthetic
Get single water glass sodium solid dispersed in water, add inorganic acid solution and regulate potential of hydrogen, pH=3, the sodium silicate solution of adding and single lagoriolite equimolar amount is kept 10 ℃ of reactions 72 hours again, behind the stopped reaction, filters and obtains two lagoriolite pressed powders.
3. two lagoriolite ultrahigh-temperature ultra-high voltage polymerization formings
The two lagoriolite solids that obtain through swager moulded section, are transferred in the High Temperature Furnaces Heating Apparatus, and under 950 ℃ of conditions, polymerization reaction take place is kept the two lagoriolite polycrystal that reaction 48h obtains moulding.Detect through XRD, degree of crystallinity reaches 92%.Through chiseling and carving processing, obtain the jade device again.
Embodiment 2
1. single lagoriolite pressed powder is synthetic
In reactor, at first add 120-300 order Al (OH)
3Powder, sodium silicate aqueous solution and small amount of N aOH catalyzer, aluminium hydroxide and water glass mol ratio are 0.6; The mol ratio of sodium hydroxide and aluminium hydroxide is 1.0.Be heated to 60 ℃ of temperature, and keep reaction 24 hours, produce single lagoriolite solid precipitation, filter, get single lagoriolite solid precipitation.
2. two lagoriolite pressed powders are synthetic
Get single water glass sodium solid dispersed in water, add inorganic acid solution and regulate potential of hydrogen, pH=5, the sodium silicate solution of adding and single lagoriolite equimolar amount is kept 40 ℃ of reactions 48 hours again, behind the stopped reaction, filters and obtains two lagoriolite pressed powders.
3. two lagoriolite ultrahigh-temperature ultra-high voltage polymerization formings
The two lagoriolite solids that obtain through swager moulded section, are transferred in the High Temperature Furnaces Heating Apparatus, and under 1150 ℃ of conditions, polymerization reaction take place is kept the two lagoriolite polycrystal that reaction 4h obtains moulding.Detect through XRD, degree of crystallinity reaches 98%.Through chiseling and carving processing, obtain the jade device again.
Embodiment 3
1. single lagoriolite pressed powder is synthetic
In reactor, at first add 120-300 order Al (OH)
3Powder, sodium silicate aqueous solution and small amount of N aOH catalyzer, aluminium hydroxide and water glass mol ratio are 1.0; The mol ratio of sodium hydroxide and aluminium hydroxide is 0.2.Keep 10 ℃ of thermotonuses 48 hours, and produced single lagoriolite solid precipitation, filter, get single lagoriolite solid precipitation.
2. two lagoriolite pressed powders are synthetic
Get single water glass sodium solid dispersed in water, add inorganic acid solution and regulate potential of hydrogen, pH=8, the sodium silicate solution of adding and single lagoriolite equimolar amount is kept 100 ℃ of reactions 12 hours again, behind the stopped reaction, filters and obtains two lagoriolite pressed powders.
3. two lagoriolite high temperature polymerization moulding
The two lagoriolite solids that obtain through swager moulded section, are transferred in the High Temperature Furnaces Heating Apparatus, and polymerization reaction take place under 1050 ℃ of conditions is kept the two lagoriolite polycrystal that reaction 24h obtains moulding.Detect through XRD, degree of crystallinity reaches 96%.Through chiseling and carving processing, obtain the jade device again.
Claims (1)
1. lagoriolite crystalline synthetic method with jade characteristic, it is characterized in that, this synthetic method is an initial feed with aluminium hydroxide and water glass, through the sodium hydroxide catalyzed reaction, generate single lagoriolite, the single lagoriolite that obtains again with inorganic acid solution and sodium silicate solution hybrid reaction, obtain two lagoriolite pressed powders, become block through high temperature polymerization at last, the lagoriolite crystal that obtains having the jade characteristic, concrete steps comprise:
1) single lagoriolite NaAlSiO
4Pressed powder is synthetic
In reactor, at first add aluminium-hydroxide powder, sodium silicate aqueous solution and catalyzer sodium hydroxide, aluminium hydroxide and water glass mol ratio are 0.5～1.0; The mol ratio of sodium hydroxide and aluminium hydroxide is 0.2～2.0, and 10～120 ℃ of temperature of reaction are kept reaction 2～48 hours, and reaction produces single lagoriolite solid precipitation, after filtration single lagoriolite solid precipitation, chemical equation is expressed as:
2) two lagoriolite NaAlSi
2O
6Pressed powder is synthetic
Get single water glass sodium solid dispersed in water, add inorganic acid solution and regulate acidity-basicity ph=3～8, add sodium silicate solution again with single lagoriolite equimolar amount, keep 10～100 ℃, reacted 12～72 hours, behind the stopped reaction, filter and obtain two lagoriolite pressed powders, chemical equation is expressed as:
NaAlSiO
4+Na
2SiO
3+2H
+→NaAlSi
2O
6+3Na
++H
2O
3) two lagoriolite high temperature polymerizations reaction
The two lagoriolite solids that obtain through swager moulded section, are transferred in the high-temperature reactor polymerization reaction take place under 950～1150 ℃ of conditions, reaction times 4-48h, the compound polycrystal of lagoriolite that obtains having the jade characteristic.
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| CN2010102848799A CN101966995B (en) | 2010-09-27 | 2010-09-27 | Method for synthesizing sodium alumino silicate crystal with jade property |
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|---|---|---|---|
| CN2010102848799A CN101966995B (en) | 2010-09-27 | 2010-09-27 | Method for synthesizing sodium alumino silicate crystal with jade property |
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| CN101966995B CN101966995B (en) | 2012-04-25 |
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|---|---|---|---|
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5440298A (en) * | 1977-09-06 | 1979-03-29 | Nissan Chem Ind Ltd | Production of sodium aluminosilicate slurry |
| GB2367017A (en) * | 2000-09-25 | 2002-03-27 | Kim Jun Han | Jade extract and process for preparing the same |
| CN1830855A (en) * | 2006-03-09 | 2006-09-13 | 陈志胜 | Artificial emerald jade and its manufacturing method and use |
-
2010
- 2010-09-27 CN CN2010102848799A patent/CN101966995B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5440298A (en) * | 1977-09-06 | 1979-03-29 | Nissan Chem Ind Ltd | Production of sodium aluminosilicate slurry |
| GB2367017A (en) * | 2000-09-25 | 2002-03-27 | Kim Jun Han | Jade extract and process for preparing the same |
| CN1830855A (en) * | 2006-03-09 | 2006-09-13 | 陈志胜 | Artificial emerald jade and its manufacturing method and use |
Non-Patent Citations (2)
| Title |
|---|
| 《中国宝玉石》 20061231 沈才卿 翡翠的高温超高压法人工合成实验 46-51 1 , 第59期 2 * |
| 《矿物学报》 19970930 朱成明等 人工合成宝石级翡翠的研究 245-249 1 第17卷, 第3期 2 * |
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| CN101966995B (en) | 2012-04-25 |
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