CN103641128B - A kind of aphrizite surface changes red closed system molten-salt growth method method - Google Patents
A kind of aphrizite surface changes red closed system molten-salt growth method method Download PDFInfo
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- CN103641128B CN103641128B CN201310582476.6A CN201310582476A CN103641128B CN 103641128 B CN103641128 B CN 103641128B CN 201310582476 A CN201310582476 A CN 201310582476A CN 103641128 B CN103641128 B CN 103641128B
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- solid solution
- tourmalinite
- closed system
- binary solid
- aphrizite
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Abstract
The invention discloses a kind of aphrizite surface and change red closed system molten-salt growth method method.Present method is by the binary solid solution thing phase of finished certain moulding tourmalinite block mixing containing LiCl, be placed in the container of sealing, container being put into electric furnace heats under 500 ~ 800 DEG C of conditions, in sealed vessel tourmalinite block with carry out molten-salt growth method mutually containing the binary solid solution thing of LiCl and react certain hour, the FeCl of clear water washing reaction generation after cooling
3with the binary solid solution thing phase of residue containing LiCl, obtain surface after filtration drying and change red certain moulding tourmalinite.Processing step comprises mixing, sealing, closed system molten-salt growth method, cleaning, filtration, drying.Present method significantly can become redness finished aphrizite product surface.
Description
Technical field
The present invention relates to chemical field, in particular a kind of aphrizite surface changes red closed system molten-salt growth method method.
Background technology
Tourmalinite is comparatively common boracic silicate minerals.Very abundant at China's reserves.Aphrizite, because look black, limits range of application.The tourmalinite overwhelming majority tourmalinite of occurring in nature is black, the tourmalinite of minority is only had to be coloured, wherein red tourmalinite is worth the highest in tourmalinite, aphrizite is worth minimum, therefore, work out a kind of method, aphrizite is changed colour into red tourmalinite and there is very large appreciation space.
The chemical formula of tourmalinite is XY
3z
6si
6o
18(BO
3)
3w
4, tourmalinite structure belongs to trigonal system.Wherein X represents macrocation, primarily of elements such as K, Ca, Na.Crystalline structure feature: tourmaline crystal constructional feature is [SiO
4] the multiple tripartite's ring of tetrahedron composition; B ligancy is 3 coordinations, composition plane trigonometry type; Y ligancy is 6 (wherein have two to be OH
﹣) composition octahedron; Between with [AlO
5(OH)] framework octahedron is connected.In tourmalinite, the situation of homogeneity class picture displacement is in various degree had to occur, wherein Mg-Fe
2+between and Fe
2+-(Li
+al
3+) between in perfect isomorphism series.The difference of displacement degree, is reflected in the difference change of crystal color.
Tourmalinite is the performance of multi mineral functional materials because of its special structure composition.As spontaneous polarization properties, piezoelectricity, pyroelectric, far-infrared radiation, anion releasing, and be widely used in fields such as industry, environmental protection, health cares.
Because aphrizite surface of the present invention changes in red system the binary solid solution thing phase that have employed containing LiCl, this thing phase high temperature duration time response easily distil or liquid phase time easily volatilize and make burner hearth poisoning, be necessary to adopt closed system system to stop long-time reaction and distil mutually containing the binary solid solution thing of LiCl or volatilize and make burner hearth intoxicating phenomenon.
Summary of the invention
Technical problem to be solved by this invention is for the deficiencies in the prior art, provides a kind of aphrizite surface to change red closed system molten-salt growth method method.
Technical scheme of the present invention is as follows:
A kind of aphrizite surface changes red closed system molten-salt growth method method, and its step is as follows:
(1) tourmalinite is processed into required technique shape to mix mutually with the appropriate binary solid solution thing containing LiCl;
(2) mixture in (1) is placed in silica tube inner sealing, forms closed system reaction vessel;
(3) closed system reaction vessel is placed in electric furnace, is warmed up to certain temperature and is incubated for some time, obtain the electric stone that surface becomes red;
(4) the electric stone of redness after reacted is washed, dry.
Described method, tourmalinite and the binary solid solution thing phase volume ratio containing LiCl are 1:1.2.
Described method, the binary solid solution containing LiCl is with CaCl
2, any one material in KCl is binary system flux.
Described method, CaCl
2account for 60% ~ 80% of binary solid solution gross weight; KCl accounts for 50% ~ 70% of binary solid solution gross weight.
Described method, the temperature range being warmed up to certain temperature is 500 ~ 800 DEG C.
Described method, soaking time scope is 5 days ~ 30 days.
Molten-salt growth method method described above, be with single or mixing molten salt for solvent, reaction terminate after, adopt suitable solvent to be dissolved by salt, after filtration washing after can obtain synthetic product.This method has the advantages such as technique is simple, synthesis temperature is low, soaking time is short.In addition, salt is easily separated, also reusable.
Accompanying drawing explanation
Fig. 1 is that aphrizite surface changes red closed system molten-salt growth method method flow diagram.
Embodiment
Below in conjunction with specific embodiment, the present invention is described in detail.
Embodiment 1
By the block tourmalinite processed and LiCl-CaCl
2or LiCl-KCl binary solid solution thing mutually by volume 1:1.2 mix; Put into silica tube, close, be placed in burner hearth, be heated to 700-800 DEG C, be incubated 5 days, cooling, washing, obtaining brightness value L* is 21 ~ 30, and " reddening " degree a* value is the red Li-tourmalinite of 2 ~ 11.
Embodiment 2
By block tourmalinite and appropriate LiCl-CaCl
2or LiCl-KCl binary solid solution thing mutually by volume 1:1.2 mix; Put into silica tube, close, be placed in burner hearth, be heated to 600-700 DEG C, be incubated 15 days, cooling, washing, dry at 80 DEG C, obtaining brightness value L* is 23 ~ 34, and " reddening " degree a* value is the red Li-tourmalinite of 4 ~ 13.
Embodiment 3
By block tourmalinite and appropriate LiCl-CaCl
2or LiCl-KCl binary solid solution thing mutually by volume 1:1.2 mix; Put into silica tube, close, be placed in burner hearth, be heated to 650-750 DEG C, be incubated 5 days, washing, dry at 80 DEG C, obtaining brightness value L* is 21 ~ 31, and " reddening " degree a* value is the red Li-tourmalinite of 3 ~ 11.
Embodiment 4
By block tourmalinite and appropriate LiCl-CaCl
2or the 1:1.2 mixing by volume mutually of LiCl-KCl binary solid solution thing, mix; Put into silica tube, close, be placed in burner hearth, be heated to 550-600 DEG C, be incubated 30 days, cooling, washing, dry at 80 DEG C, obtaining brightness value L* is 24 ~ 36, and " reddening " degree a* value is the red Li-tourmalinite of 5 ~ 14.
Should be understood that, for those of ordinary skills, can be improved according to the above description or convert, and all these improve and convert the protection domain that all should belong to claims of the present invention.
Claims (5)
1. aphrizite surface changes a red closed system molten-salt growth method method, it is characterized in that, comprises the following steps:
(1) tourmalinite is processed into required technique shape to mix mutually with the appropriate binary solid solution thing containing LiCl; The described binary solid solution containing LiCl is with CaCl
2, any one material in KCl is binary system flux;
(2) mixture in (1) is placed in silica tube inner sealing, forms closed system reaction vessel;
(3) closed system reaction vessel is placed in electric furnace, is warmed up to certain temperature and is incubated for some time, obtain the electric stone that surface becomes red;
(4) the electric stone of redness after reacted is washed, dry.
2. method according to claim 1, is characterized in that, tourmalinite and the binary solid solution thing phase volume ratio containing LiCl are 1:1.2.
3. method according to claim 1, is characterized in that, CaCl
2account for 60% ~ 80% of binary solid solution gross weight; KCl accounts for 50% ~ 70% of binary solid solution gross weight.
4. method according to claim 1, is characterized in that, the temperature range being warmed up to certain temperature is 500 ~ 800 DEG C.
5. method according to claim 1, is characterized in that, soaking time scope is 5 days ~ 30 days.
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|---|---|---|---|
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| CN201310582476.6A CN103641128B (en) | 2013-11-18 | 2013-11-18 | A kind of aphrizite surface changes red closed system molten-salt growth method method |
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| CN103641128B true CN103641128B (en) | 2015-08-26 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1473759A (en) * | 2002-08-07 | 2004-02-11 | 上海弘康科技发展有限公司 | Method for producing superfine white tourmaline powder |
| CN102491354A (en) * | 2011-12-05 | 2012-06-13 | 河北工业大学 | Preparation method of nano-scale tourmaline powder |
| CN102836728A (en) * | 2012-09-06 | 2012-12-26 | 中国地质大学（北京） | Preparation method of TiO2/schorlite/rare earth ion composite photo-catalytic material |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002145611A (en) * | 2000-11-06 | 2002-05-22 | Dejitekku:Kk | Powdery mixture containing mineral |
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2013
- 2013-11-18 CN CN201310582476.6A patent/CN103641128B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1473759A (en) * | 2002-08-07 | 2004-02-11 | 上海弘康科技发展有限公司 | Method for producing superfine white tourmaline powder |
| CN102491354A (en) * | 2011-12-05 | 2012-06-13 | 河北工业大学 | Preparation method of nano-scale tourmaline powder |
| CN102836728A (en) * | 2012-09-06 | 2012-12-26 | 中国地质大学（北京） | Preparation method of TiO2/schorlite/rare earth ion composite photo-catalytic material |
Non-Patent Citations (1)
| Title |
|---|
| Mg-Fe电气石氧化/还原热处理;王平等;《材料热处理学报》;20101231;第31卷(第12期);第8-13页 * |
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Address after: Unit 408, 3 Nantou Road, Siming District, Xiamen City, Fujian Province Patentee after: Xiamen Shanjun Shuijie Technology Co.,Ltd. Address before: Room 402, 4th floor, building 4, infant and child industry cultural and creative park, Jinjiang Economic Development Zone (wuliyuan), Quanzhou City, Fujian Province, 362200 Patentee before: JINJIANG SHANJUN SHUIJIE TECHNOLOGY Co.,Ltd. |
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