CN103073011A - Method for preparing synthetic mica under segmental control - Google Patents
Method for preparing synthetic mica under segmental control Download PDFInfo
- Publication number
- CN103073011A CN103073011A CN2013100525791A CN201310052579A CN103073011A CN 103073011 A CN103073011 A CN 103073011A CN 2013100525791 A CN2013100525791 A CN 2013100525791A CN 201310052579 A CN201310052579 A CN 201310052579A CN 103073011 A CN103073011 A CN 103073011A
- Authority
- CN
- China
- Prior art keywords
- synthetic mica
- temperature
- furnace
- hours
- percent
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Silicates, Zeolites, And Molecular Sieves (AREA)
Abstract
The invention discloses a method for preparing synthetic mica under segmental control. In a resistance furnace, the synthetic mica consists of the following components in percentage by weight: 36-40 percent of quartz sand, 29-31 percent of magnesium oxide, 10-12 percent of aluminum oxide, 19-21 percent of potassium fluosilicate and 3-5 percent of potassium carbonate, wherein the particle size of the quartz sand is 60-100 meshes; the particle size of the magnesium oxide is 60-100 meshes; the particle size of the aluminum oxide is 60-100 meshes; the particle size of the potassium fluosilicate is 120-200 meshes; the particle size of the potassium carbonate is 20-80 meshes; and the purity of the five types of raw materials is over 98.5 percent. According to the method, the temperature in the resistance furnace is controlled segmentally. The method comprises the following steps of: I, raising the furnace temperature to 1,500-1,900 DEG C within 1-5 hours; II, calcining at a constant temperature of 1,500-1,900 DEG C for 5-15 hours; III, lowering the furnace temperature to 200-600 DEG C within 5-25 hours; and IV, lowering the furnace temperature to the room temperature within 5-25 hours, and discharging to obtain the synthetic mica which is a high-quality flaky crystal.
Description
[technical field]
The present invention relates to the synthetic mica technical field, specifically, is the method that a kind of segmentation prepares synthetic mica.
[background technology]
The natural mica resistance to elevated temperatures is not strong, 400-500 ℃ of natural muscovite melt temperature, 600-800 ℃ of natural phlogopite melt temperature.In some application scenarios such as high-grade automotive paints, aerospace material, speciality coating, enhanced plastic etc., require mica that good insulativity and erosion resistance not only will be arranged, also require to have good high-temperature stability.Because synthetic mica is hydroxyl (OH) not, its high high-temp stability is higher than natural mica, and synthetic mica just slowly decomposes more than 1200 ℃.In addition, because synthetic mica is pure, impurity is few, the transparency is good, hardness is slightly larger than outside the natural mica, and the performances such as other mechanical property, electrical insulation capability and vacuum deflation all are better than natural mica.Therefore, synthetic mica not only can replace natural mica, but also has the novel fire resistant insulating material of property.
The open CN1257849A of patent of invention has set forth a kind of method of artificial crystal synthesized mica, and the weight percent that the raw material of selecting and various raw material account for total amount is: talcum 23%, quartz 40%, magnesia 30%, vitriolate of tartar 4%, magnesiumcarbonate 3%; Production method is that first three is planted the raw material co-grinding, adds rear two kinds of raw materials again, these five kinds of raw materials is fully mixed put into the liquid that the smelting furnace heating is electrolyzed to produce molten state, and cooling crystallization forms.
The open CN1903721A of patent of invention has set forth a kind of artificial crystal synthesized mica and preparation technology, the synthetic mica raw material comprises: quartz sand, magnesium oxide, aluminum oxide, potassium silicofluoride and salt of wormwood, its feed composition proportioning is: quartzy 33%-37%, magnesium oxide 28%-31%, aluminum oxide 9%-12%, potassium silicofluoride 18%-21%, salt of wormwood 0.3%-0.4%, and again by its requirement granularity and purity apolegamy and processing.
The open CN102674386A of patent of invention has set forth a kind of artificial crystal synthesized mica, it is prepared by the raw material of weight percent: quartz sand 34%-36%, aluminum oxide 11%-13%, electrosmelted magnesite clinker 28%-30%, potassium silicofluoride 18%-21%, salt of wormwood 3%-5%, after batching mixed, the connection three-phase supply carried out electric heating igneous fusion to the raw material in the container by striking, intensification, insulation, cooling four-stage and makes artificial crystal synthesized mica.
Patent of invention ZL200910177075.6 has set forth synthetic mica and the preparation technology with the calcination of talc preparation, this mica is formed through founding by calcination of talc, heavy body magnesium oxide, potassium silicofluoride, aluminum oxide, five kinds of raw materials of salt of wormwood, then this preparation mica technique comprises with electric furnace heating raw materials makes sheet mica through insulation, cooling, naturally cooling to molten state.
Although more than each patent set forth the preparation mica need to described raw material through melting, be incubated, be down to certain low temperature, be down to the room temperature process, but, more than each patent to melting, be incubated, be down to certain low temperature, temperature control and the time control of being down to room temperature do not set forth, and has no other document or patent report yet.
[summary of the invention]
The purpose of this invention is to provide the method that a kind of segmentation prepares synthetic mica, specifically, be to the melting described in the synthetic mica technological process, be incubated, be down to certain low temperature, be down to ambient temperature control and time control is set forth.
Implementation method of the present invention is:
In resistance furnace, the weight percent of each component is respectively: quartz sand 36%-40%, magnesium oxide 29%-31%, aluminum oxide 10%-12%, potassium silicofluoride 19%-21% and salt of wormwood 3%-5%.The granularity of above-mentioned five kinds of raw materials is respectively quartz sand 60-100 order, magnesium oxide 60-100 order, aluminum oxide 60-100 order, potassium silicofluoride 120-200 order, salt of wormwood 20-80 order.The purity of above-mentioned five kinds of raw materials is greater than 98.5%.Adopt melting in the segmentation controlling resistance stove, be incubated, be down to certain low temperature, be down to the temperature control of room temperature and the method for time control prepares synthetic mica.
The present invention is achieved through the following technical solutions, and its concrete steps are:
The first step was warming up to 1500-1900 ℃ by room temperature with furnace temperature in 1-5 hour;
Second step was at 1500-1900 ℃ of calcining at constant temperature 5-15 hour;
In the 3rd step, in 5-25 hour, furnace temperature is down to 200-600 ℃;
In the 4th step, in 5-25 hour, furnace temperature is down to room temperature.Discharging, gained synthetic mica are the high-quality tabular crystal.
Compared with prior art, positively effect of the present invention is: the method that the present invention adopts melting in the segmentation controlling resistance stove, be incubated, be down to certain low temperature, be down to room temperature prepares synthetic mica, make the temperature control of synthetic mica clearer and more definite with time control, for synthetic high-quality mica provides sound assurance.
[description of drawings]
A kind of segmentation of Fig. 1 prepares the Technology Roadmap of the method for synthetic mica.
[embodiment]
Below provide a kind of segmentation of the present invention to prepare the embodiment of the method for synthetic mica.
Embodiment 1
In resistance furnace, the weight percent of each component is respectively: quartz sand 36%, magnesium oxide 30%, aluminum oxide 11%, potassium silicofluoride 20% and salt of wormwood 3%.The granularity of above-mentioned five kinds of raw materials is respectively quartz sand 60 orders, magnesium oxide 100 orders, aluminum oxide 100 orders, potassium silicofluoride 120 orders, salt of wormwood 60 orders.The purity of above-mentioned five kinds of raw materials is greater than 98.5%.Temperature in the segmentation controlling resistance stove, the first step was warming up to 1800 ℃ by room temperature with furnace temperature in 3 hours; Second step was 1800 ℃ of calcining at constant temperature 10 hours; In the 3rd step, in 15 hours, furnace temperature is down to 300 ℃; In the 4th step, in 5 hours, furnace temperature is down to room temperature.Discharging, gained synthetic mica are the high-quality tabular crystal.
Embodiment 2
In resistance furnace, the weight percent of each component is respectively: quartz sand 38%, magnesium oxide 29%, aluminum oxide 10%, potassium silicofluoride 19% and salt of wormwood 4%.The granularity of above-mentioned five kinds of raw materials is respectively quartz sand 100 orders, magnesium oxide 100 orders, aluminum oxide 100 orders, potassium silicofluoride 200 orders, salt of wormwood 80 orders.The purity of above-mentioned five kinds of raw materials is greater than 98.5%.Temperature in the segmentation controlling resistance stove, the first step was warming up to 1850 ℃ by room temperature with furnace temperature in 4 hours; Second step was 1850 ℃ of calcining at constant temperature 15 hours; In the 3rd step, in 24 hours, furnace temperature is down to 300 ℃; In the 4th step, in 15 hours, furnace temperature is down to room temperature.Discharging, gained synthetic mica are the high-quality tabular crystal.
Embodiment 3
In resistance furnace, the weight percent of each component is respectively: quartz sand 37%, magnesium oxide 30%, aluminum oxide 10%, potassium silicofluoride 19% and salt of wormwood 4%.The granularity of above-mentioned five kinds of raw materials is respectively quartz sand 80 orders, magnesium oxide 80 orders, aluminum oxide 80 orders, potassium silicofluoride 160 orders, salt of wormwood 80 orders.The purity of above-mentioned five kinds of raw materials is greater than 98.5%.Temperature in the segmentation controlling resistance stove, the first step was warming up to 1600 ℃ by room temperature with furnace temperature in 2 hours; Second step was 1600 ℃ of calcining at constant temperature 12 hours; In the 3rd step, in 24 hours, furnace temperature is down to 500 ℃; In the 4th step, in 24 hours, furnace temperature is down to room temperature.Discharging, gained synthetic mica are the high-quality tabular crystal.
Embodiment 4
In resistance furnace, the weight percent of each component is respectively: quartz sand 36%, magnesium oxide 29%, aluminum oxide 11%, potassium silicofluoride 19% and salt of wormwood 5%.The granularity of above-mentioned five kinds of raw materials is respectively quartz sand 100 orders, magnesium oxide 100 orders, aluminum oxide 100 orders, potassium silicofluoride 200 orders, salt of wormwood 80 orders.The purity of above-mentioned five kinds of raw materials is greater than 98.5%.Temperature in the segmentation controlling resistance stove, the first step was warming up to 1700 ℃ by room temperature with furnace temperature in 2 hours; Second step was 1700 ℃ of calcining at constant temperature 15 hours; In the 3rd step, in 25 hours, furnace temperature is down to 400 ℃; In the 4th step, in 24 hours, furnace temperature is down to room temperature.Discharging, gained synthetic mica are the high-quality tabular crystal.
The above only is preferred implementation of the present invention; should be pointed out that for those skilled in the art, without departing from the inventive concept of the premise; can also make some improvements and modifications, these improvements and modifications also should be considered within the scope of protection of the present invention.
Claims (4)
1. a segmentation prepares the method for synthetic mica, it is characterized in that concrete steps are:
To be pre-mixed uniform quartz sand, magnesium oxide, aluminum oxide, potassium silicofluoride and salt of wormwood totally five kinds of raw materials add in the resistance furnace, temperature in the segmentation controlling resistance stove, the first step was warming up to 1500-1900 ℃ by room temperature with furnace temperature in 1-5 hour; Second step was at 1500-1900 ℃ of calcining at constant temperature 5-15 hour; In the 3rd step, in 5-25 hour, furnace temperature is down to 200-600 ℃; In the 4th step, in 5-25 hour, furnace temperature is down to room temperature.Discharging, gained synthetic mica are the high-quality tabular crystal.
2. a kind of segmentation prepares the method for synthetic mica as claimed in claim 1, it is characterized in that the weight percent of above-mentioned five kinds of raw material each components is respectively: quartz sand 36%-40%, magnesium oxide 29%-31%, aluminum oxide 10%-12%, potassium silicofluoride 19%-21% and salt of wormwood 3%-5%.
3. a kind of segmentation prepares the method for synthetic mica as claimed in claim 1, it is characterized in that the granularity of above-mentioned five kinds of raw materials is respectively: quartz sand 60-100 order, magnesium oxide 60-100 order, aluminum oxide 60-100 order, potassium silicofluoride 120-200 order, salt of wormwood 20-80 order.
4. a kind of segmentation prepares the method for synthetic mica as claimed in claim 1, it is characterized in that the purity of above-mentioned five kinds of raw materials is all greater than 98.5%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100525791A CN103073011A (en) | 2013-02-17 | 2013-02-17 | Method for preparing synthetic mica under segmental control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100525791A CN103073011A (en) | 2013-02-17 | 2013-02-17 | Method for preparing synthetic mica under segmental control |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103073011A true CN103073011A (en) | 2013-05-01 |
Family
ID=48149736
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013100525791A Pending CN103073011A (en) | 2013-02-17 | 2013-02-17 | Method for preparing synthetic mica under segmental control |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103073011A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109694078A (en) * | 2018-12-18 | 2019-04-30 | 长春市泰元氟金云母有限公司 | A kind of preparation method of Fluororystal mica and its application in two dimensional crystal preparation |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1903721A (en) * | 2005-07-27 | 2007-01-31 | 王新成 | Artificial crystal synthesizing mica and its preparation technology |
| CN101671034A (en) * | 2009-09-21 | 2010-03-17 | 江阴市友佳珠光云母有限公司 | Synthetic mica prepared from calcined talcum and preparation method and processing method of fluorophlogopite powder and fluorophlogopite pearlescent pigment |
| CN102674386A (en) * | 2012-06-14 | 2012-09-19 | 平江县兴科云母制品有限公司 | Artificial lens synthetic mica |
| CN102815715A (en) * | 2011-06-10 | 2012-12-12 | 江阴市友佳珠光云母有限公司 | Method for producing electronic mica via artificial synthesis |
-
2013
- 2013-02-17 CN CN2013100525791A patent/CN103073011A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1903721A (en) * | 2005-07-27 | 2007-01-31 | 王新成 | Artificial crystal synthesizing mica and its preparation technology |
| CN101671034A (en) * | 2009-09-21 | 2010-03-17 | 江阴市友佳珠光云母有限公司 | Synthetic mica prepared from calcined talcum and preparation method and processing method of fluorophlogopite powder and fluorophlogopite pearlescent pigment |
| CN102815715A (en) * | 2011-06-10 | 2012-12-12 | 江阴市友佳珠光云母有限公司 | Method for producing electronic mica via artificial synthesis |
| CN102674386A (en) * | 2012-06-14 | 2012-09-19 | 平江县兴科云母制品有限公司 | Artificial lens synthetic mica |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109694078A (en) * | 2018-12-18 | 2019-04-30 | 长春市泰元氟金云母有限公司 | A kind of preparation method of Fluororystal mica and its application in two dimensional crystal preparation |
| CN109694078B (en) * | 2018-12-18 | 2022-05-20 | 长春市泰元氟金云母有限公司 | Preparation method of fluorine crystal mica and application of fluorine crystal mica in preparation of two-dimensional crystal |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110184518B (en) | Rapidly-dissolved high-strength high-elongation magnesium alloy and preparation method thereof | |
| CN103589924B (en) | A kind of technique of producing aerospace component rods and bars of aluminium alloy | |
| CN103864433A (en) | Periclase-magnesium aluminate spinel refractory material for rotary cement kiln and preparation method thereof | |
| CN110467188A (en) | A kind of synthetic mica and its preparation method and application | |
| CN102674386A (en) | Artificial lens synthetic mica | |
| CN106517800A (en) | Glass ceramics and preparation method thereof | |
| CN1241856C (en) | Microcrystallizing glass for construction and produced from metal flume and its production | |
| KR20130070635A (en) | Method for manufacturing planar inorganic non-metallic material using molten slag | |
| CN103073011A (en) | Method for preparing synthetic mica under segmental control | |
| CN104478219B (en) | Nano-scale spinel glass ceramic and preparation method thereof | |
| CN106904955B (en) | Method for synthesizing mullite powder at low temperature by using coal gangue as raw material through molten salt growth method | |
| CN110104953A (en) | A kind of low bulk environment-friendly type opal glass and preparation method thereof | |
| CN106518047B (en) | A kind of preparation method of ferro-magnesium-aluminum spinelle | |
| CN105420533A (en) | New high-strength titanium carbide particle reinforced copper-based alloy material for oceanographic engineering | |
| CN105253865A (en) | Synthetic silicon oxynitride raw material and preparation method thereof | |
| CN106676300A (en) | Production process for round aluminium alloy rod | |
| CN105777128A (en) | Method for synthesizing hafnium carbide ceramic powder at low temperature through assisting of molten salts and magnesiothermic reduction | |
| CN100491251C (en) | Method for preparing mullite from kaoline | |
| CN106830075B (en) | A kind of high-purity zirconic acid calcium material and preparation method thereof | |
| CN102268693A (en) | Method for preparing rare-earth magnesium alloy | |
| CN105329922A (en) | Preparation method of magnesium oxide crystal powder | |
| CN105417956B (en) | The method that microlite is manufactured with tailings of high silicon iron | |
| CN107586979A (en) | A kind of microalloying of rare earth high conductivity copper alloy and preparation method thereof | |
| CN102241498A (en) | Artificial jade based on red mud, and production method thereof | |
| CN102241502A (en) | Artificial jade based on gangue and manufacturing method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C05 | Deemed withdrawal (patent law before 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130501 |