CN109534802A

CN109534802A - A kind of far infrared of usury desert material is from raw glaze china and its preparation process

Info

Publication number: CN109534802A
Application number: CN201811583049.9A
Authority: CN
Inventors: 温克仁
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-12-24
Filing date: 2018-12-24
Publication date: 2019-03-29
Anticipated expiration: 2038-12-24
Also published as: CN109534802B

Abstract

The present invention relates to a kind of far infrareds of usury desert material from raw glaze china and its preparation process, including the following raw material by weight percentage: being derived from the grains of sand in desert: 50% ~ 60%；Pyrophillite: 10% ~ 20%；Camwood knag: 8% ~ 15%；Gangue: 10% ~ 18%；Magnesium-based bentonite: 2% ~ 4%；Potassium feldspar: 4% ~ 8%；Albite: 4% ~ 8%；Spodumene: 2% ~ 5%；Zirconium silicate: 3% ~ 5%；Wollastonite: 4% ~ 6%；The production technology of the Bone China includes the following steps: to be formulated ingredient, ball milling, sieving, removes iron, filters pressing, first time pugging, second of pugging and sizing firing；Produced by the present invention to have preferable toughness and higher intensity from raw glaze china, good thermal stability suitable for the environment of rapid heat cycle, while having preferable radiance and wide spectrum.

Description

A kind of far infrared of usury desert material is from raw glaze china and its preparation process

Technical field

The present invention relates to ceramic technology fields, and in particular to a kind of usury with desert material far infrared from raw glaze china and its Preparation process.

Background technique

With the continuous development of ceramic technology, people make ceramics using different raw materials and different technique, and ceramics go out Many new types are showed, china and far-infrared ceramic are exactly two wherein more popular types.China is a kind of generally acknowledged High-grade porcelain, Dehua jade porcelain, which is exactly that one kind in china is significant, to be represented, and raw material is mainly wanted based on animal bone ash, is added a certain amount of Soft porcelain made of kaolin, quartz, feldspar etc. has fine and smooth porcelain, whiteness height, transparency height, glaze smooth, mechanical strong Spend the advantages that high, but a large amount of developments and utilizations of mineral resources, ore is increasingly poor, Longyan kaolin ore reserves substantially under Drop, exploitation receive stringent limitation, to maintain the quality and yield of china, using the new original for capableing of alternative ore resource Material is the research direction of the following china development.The eighties in last century, high radiated infrared ceramic material was flourished in foreign countries, The wide husband in the high island of Japan, high fields great one et al. use Fe₃O₄、MnO₂, the transition metal oxides such as CuO, CoO be raw material, normal direction is made All band radiance is greater than 0.90 high radiated infrared ceramic material；Patent of the ParkerHolding company, the U.S. in its application Claim in document, uses AB₂O₄Type inorganic compound is formed as infrared radiant material, and wherein A is mainly by Mg, Zn, Mn, Ni, Co Deng composition, B is mainly Al, Cr, Mn, Fe etc..Far-infrared ceramic is through more than 20 kinds of inorganic compounds and trace meter or specific day Right ore is sintered in different proportions respectively, is produced larger to the dependence of nonrenewable resources.To high-quality resource It excessively utilizes, accelerates the too fast exhaustion of resource, increase the production cost of far-infrared ceramic.

Desert occupies the 10% of land area, and 1,720,000 square kilometres of China's sandy land area accounts for nearly the 1/ of national territorial area 5.Currently, being to develop recovery industry and modern agriculture using the most important approach in desert, and the grains of sand in desert are introduced into It is a kind of completely new thinking and developing direction in traditional ceramics industry, mining mineral resource amount can be reduced, reduce ceramic industry Energy consumption promotes the development and reform of ceramics while meeting the megatrend of energy-saving and emission-reduction, ecological protection.The desert grains of sand Middle light mineral content is very high, and generally 90% or more, light mineral main component is quartz, feldspar and calcite, alternative ceramics Quartz and the materials such as feldspar in raw materials for production, can by using the scheme of the sand grains alternative ore resource in desert with being introduced into desert Area provides a new sand control sand prevention road.

Application No. is 201410210975.7 Chinese patents to disclose a kind of iron tailings far-infrared ceramic material and its system Preparation Method, specifically disclosed ceramic material is mainly by iron tailings 35~75%, clay 1~9%, silica 1 1~25%, carbon Sour calcium 11~25% and aluminium oxide 2~6% are constituted, and the sum of each component is 100%, at the same with iron tailings, clay, silica, Calcium silicates and aluminium oxide are raw material, and iron is made after ball milling, sieving, ingredient, stirring, drying, mixing, dry-pressing formed and sintering Tailing far-infrared ceramic material.The invention takes full advantage of iron tailings, reduces production cost, but far-infrared ceramic material is made Expect brittle, poor toughness and radiation wave band is relatively narrow.Application No. is 201410211126.3 Chinese patents to disclose one kind containing dilute The iron tailings far-infrared ceramic material and preparation method thereof of soil, specifically disclosed ceramic material mainly by iron tailings 35~75%, Clay 1~7%, silica 6~25%, calcium carbonate 6~25%, aluminium oxide 2~7% and rare earth 1~9% are constituted, each component The sum of be 100%, while using iron tailings, clay, silica, calcium silicates and aluminium oxide as primary raw material, and be to add with rare earth Add agent, the iron tail containing rare earth is mainly made after ball milling, sieving, ingredient, stirring, drying, mixing, dry-pressing formed and sintering process Mine far-infrared ceramic material.The invention not only takes full advantage of iron tailings while can be improved the far infrared transmission ability of ceramics, The far infrared of high emissivity is radiated, but far-infrared ceramic material ductile strength obtained is poor, thermostable type is poor, Wu Fashi Environment for rapid heat cycle.

Summary of the invention

To solve the above problem in the prior art, the present invention provides a kind usury with desert material far infrared from raw glaze China and its preparation process introduce desert grains of sand substitution kaolin ore and quartz mine in china pug, can be made have compared with Good toughness and higher intensity from raw glaze china, thermostable type is good, suitable for the environment of rapid heat cycle, while have compared with Good wide spectrum and radiance.

Technical solution of the present invention:

A kind of far infrared of usury desert material is from raw glaze china, china pug component and weight percent are as follows: is derived from The grains of sand in desert: 45%~55%；Pyrophillite: 8%~10%；Camwood knag: 6%~8%；Gangue: 10%~13%；Magnesium Base bentonite: 2%~4%；Potassium feldspar: 4%~8%；Albite: 3%~6%；Micron order spodumene: 1%~3%；Silicic acid Zirconium: 2%~4%；Wollastonite: 4%~6%.

Wherein, chemical composition is by weight percentage in the china pug are as follows: SiO₂: 60%~70%；Al₂O₃: 15% ~20%；CaO:2.0%~4.5%；ZrO₂: 3.5%~5.0%；Na₂O+K₂O:2.6%~4.6%；Fe₂O₃: 1.2%~ 2.0%；MgO:2.8%~3.8%；LiO₂: 0.8%~1.5%；TiO₂: 0.5%~1.0%；P₂O₅: 0.05%~ 0.2%.

Wherein, the desert grains of sand are deposited in by ultrasonic cleaning removal after the grains of sand needs for being derived from desert are mixed with water The siliceous scale and siliceous film on surface.

Wherein, the camwood knag needs successively to be pre-processed by smashing slurry, magnetic separation and the process flow of bleaching.

From the preparation process of raw glaze china, process flow is followed successively by is matched by formula for a kind of far infrared of usury desert material Material, sieving, removes iron, filters pressing, first time pugging, second of pugging, sizing firing at ball milling；The china pug 1200 DEG C~ It is once sintered into 1300 DEG C of high temperature from raw glaze china, the sintering procedure of once-firing is as follows:

(1) room temperature~200 DEG C are heated up 2~3h to 300 DEG C at a slow speed, are fired in oxygen atmosphere, heating rate 1 ~1.5 DEG C/min；

(2) 200 DEG C~900 DEG C, heating rate is improved, holding heating rate is 8~10 DEG C/min；

(3) 900 DEG C~1200 DEG C, reducing heating rate prevents china from cracking, and heating rate is 3~5 DEG C/min；

(4) in 1200 DEG C~1300 DEG C range 3~6h of inside holding, it is passed through nitrogen in this temperature range, builds nitrogen gas Atmosphere promotes china crystal phase stabilization to be formed；

(5) 1300 DEG C~600 DEG C, high temperature is quickly cooled down the stage, and rate of temperature fall is 16~18 DEG C/min；

(6) 100 DEG C or less are naturally cooled to.

Wherein, the pH of pug is adjusted as 7~8 in alkalescent in the first time pugging and second of pugging；Because of pug In contain camwood knag, camwood knag contains more carbonaceous humus, and humus and lye effect can hydrolyze to form protective glue Body facilitates mud material forming performance improvement.

The invention has the following beneficial effects:

1, clay, quartz and the feldspar being introduced into bone china paste in the present invention in grains of sand substitution part Dehua jade porcelain billet material Equal raw materials, wherein grains of sand proportion is up to the use of 50%~60% alternative clay mineral；The grains of sand contain 90% or more The light minerals such as quartz, feldspar and calcite, can be with SiO in bone china paste₂、CaO、 Al₂O₃、Na₂O、K₂The ingredients such as O are substituted, Wherein, the clay raw material of Dehua jade porcelain is reduced from Longyan kaolin using the grains of sand instead of whole quartz mines mostly The use of kaolin ore and hydroxyapatite saves the cost of winning of mineral resources, has been greatly reduced mineral resources utilization, The exploitation and waste for reducing mineral resources, reduce production cost.It realizes simultaneously and desert is made full use of, be a kind of complete New sand control thinking and scheme meet the development trend of ecological protection and circular economy.

2, far infrared produced by the present invention from raw glaze china there is preferable toughness and higher intensity, fracture toughness to be greater than 12MPa·m^1/2, glaze surface intensity is greater than 580kg, f/mm², flexural strength is all satisfied ceramic high-ductility between 450-460MPa High-strength requirement, and good thermal stability, it is not cracked to exchange multiple china in -20 DEG C~180 DEG C of section, is suitable for In the environment of rapid heat cycle, while higher infrared emittance is able to maintain at 5-20 μm.

2, bone china paste and glaze are mixed in the present invention and is integrated, realized in sintering procedure from raw glaze, without " applying Glaze " process guarantees that glaze is uniform, prevents finished product china surface from thin glaze, glaze line, crawling and the dirty defect of glaze occur.Meanwhile it adopting About half is reduced than process used in traditional china technological process of production with single firing process, " polishing " process is not necessarily to, reduces Dust emission；Without " washing " process, reduce water resources consumption；Without a large amount of heating, coolings and drying process, energy is saved Source reduces energy consumption and " three wastes " discharge.

3, the main component in the present invention in pyrophillite, camwood knag and gangue is silica and aluminium oxide, still The crystal phase and structure of aluminium oxide are different in three kinds of raw materials, pass through between the aluminium oxide of different crystal phases under conditions of high-temperature calcination In-situ compound technology is equivalent to as mutual additional toughening crystal phase, without introducing other reinforcing agent or crystal seed, three kinds of oxidations Aluminium crystal seed, which can interpenetrate, grows into that grain aspect ratio is big, the equally distributed chip reinforcement of whisker, and three kinds of aluminium oxide crystalline substances Although grain is different, compatibility is preferable, interlaced with each other to be connected to form three-dimensional netted distribution, and then enhances the toughness of china And intensity, while three kinds of raw material itself toughenings eliminate matrix phase and toughening mutually physically or chemically not to a certain extent Compatibility, ensure that the thermodynamic stability of matrix phase and toughening phase, and then improve the thermal stability of china.

4, it joined magnesium-based bentonite in china pug in the present invention, contain Mg in magnesium-based bentonite²⁺, can and Fe²⁺Instead The solid solution that MgFeO should be generated, with TiO₂Reaction generates MgOTiO₂, Fe²⁺And TiO₂It can precipitate, can weaken The adverse effect of iron, titanium to china whiteness, while the Mg that magnesium-based bentonite introduces²⁺With milkiness effect, it is also beneficial to improve bone Porcelain billet body whiteness；The degree of purity that can be improved color when colored china is made in different pigment is added simultaneously.

5, the present invention in joined wollastonite in powder, zirconium silicate and spodumene, wherein zirconium silicate chemical stability is good, not by The influence of china firing atmosphere, and the base glaze separating property of china can be significantly improved, improve china hardness of glaze surface；Zirconium silicate simultaneously Baddeleyite is formed after china high-temperature calcination, is because it is after ceramic firing so that whitening effect can be played in ceramic glaze Baddeleyite etc. is constituted, incident light wave is constituted and is scattered, the effect for reaching milkiness, brightening；Spodumene can enable china to be subjected to The environmental change of rapid heat cycle guarantees good thermal stability；Firing temperature can be greatly lowered in wollastonite in powder, shorten firing Time largely saves fuel, hence it is evident that reduces product cost；The mechanical performance of product is improved simultaneously, is reduced the crack of product and is stuck up Bent, increase glaze gloss improves idiosome intensity, and then improves the qualification rate of product.

Specific embodiment

Below with reference to preferred embodiment, the present invention is further illustrated.

Embodiment 1

A kind of far infrared of usury desert material is from raw glaze china, china pug component and weight percent are as follows: is derived from The grains of sand 50% in desert；Pyrophillite 10%；Camwood knag 8%；Gangue 10%；Magnesium-based bentonite 2%；Potassium feldspar 6%；Albite 3%；Micron order spodumene 3%；Zirconium silicate 2%；Wollastonite 6%.

Preferably, chemical composition is by weight percentage in the china pug are as follows: SiO₂: 60%；Al₂O₃: 20%；CaO: 4.5%；ZrO₂: 5.0%；Na₂O+K₂O:4.6%；Fe₂O₃: 1.2%；MgO:2.8%； LiO₂: 0.8%；TiO₂: 1.0%； P₂O₅: 0.1%.

Preferably, the process flow that above-mentioned china pug prepares china is followed successively by by formula ingredient, is derived from desert for 50% The grains of sand, 10% pyrophillite, 8% camwood knag, 10% gangue, 2% magnesium-based bentonite, 6% potassium feldspar, 3% Albite, 3% micron order spodumene, 2% zirconium silicate and 6% nanometer wollastonite be put into ball mill and mixed Grinding, wherein material: ball: uniformly mixed pug is made in water 1:1.5:0.5；Then, uniformly mixed pug be successively sieved, Except iron, filters pressing, first time pugging, second of pugging and sizing sintering process, final pug can cross 350 meshes.

Preferably, sand is deposited in by ultrasonic cleaning removal after the grains of sand needs for being derived from desert are mixed with aqueous solution The sand of the siliceous scale and siliceous film on unconcerned grains of sand surface, desert passes through prolonged weathering, siliceous scale and siliceous film It is widely present etc. the siliceous beds of precipitation on grains of sand surface, substance adsorption energy Europe and the charge-carrying capability of the grains of sand can be changed.

Preferably, the camwood knag needs successively to be pre-processed by smashing slurry, magnetic separation and the process flow of bleaching.

Wherein, the pH of pug is adjusted as 7 in alkalescent in the first time pugging and second of pugging；Because containing in pug There is camwood knag, camwood knag contains more carbonaceous humus, and humus and lye effect can hydrolyze to form protecting colloid, have Help mud material forming performance improvement.

Embodiment 2

A kind of far infrared of usury desert material is from raw glaze china, china pug component and weight percent are as follows: is derived from The grains of sand 55% in desert；Pyrophillite 8%；Camwood knag 6%；Gangue 11%；Magnesium-based bentonite 3%；Potassium feldspar 4%；Albite 4%；Micron order spodumene 1%；Zirconium silicate 4%；Wollastonite 4%.

Preferably, chemical composition is by weight percentage in the china pug are as follows: SiO₂: 65%；Al₂O₃: 18%；CaO: 3%；ZrO₂: 4%；Na₂O+K₂O:3.2%；Fe₂O₃: 1.8%；MgO:3.2%； LiO₂: 1%；TiO₂: 0.75%；P₂O₅: 0.05%.

Preferably, the process flow that above-mentioned china pug prepares china is followed successively by by formula ingredient, is derived from desert for 55% The grains of sand, 8% pyrophillite, 6% camwood knag, 11% gangue, 3% magnesium-based bentonite, 4% potassium feldspar, 4% Albite, 1% micron order spodumene, 4% zirconium silicate and 4% nanometer wollastonite ball mill in carry out mixed grinding, Wherein expect: ball: uniformly mixed pug is made in water 1:1.5:0.5；Then, uniformly mixed pug by sieving, except iron, Filters pressing, first time pugging, second of pugging and sizing sintering process, final pug can cross 350 meshes.

Preferably, Desert Sand is deposited in by ultrasonic cleaning removal after the grains of sand needs for being derived from desert are mixed with water The sand of the siliceous scale and siliceous film on grain surface, desert passes through prolonged weathering, the silicon such as siliceous scale and siliceous film The matter beds of precipitation are widely present on grains of sand surface, can change substance adsorption energy Europe and the charge-carrying capability of the grains of sand.

Preferably, the pH of pug is adjusted as 8 in alkalescent in the first time pugging and second of pugging；Because in pug Containing camwood knag, camwood knag contains more carbonaceous humus, and humus and lye effect can hydrolyze to form protecting colloid, Facilitate mud material forming performance improvement.

Embodiment 3

A kind of far infrared of usury desert material is from raw glaze china, china pug component and weight percent are as follows: is derived from The grains of sand 45% in desert；Pyrophillite 9%；Camwood knag 7%；Gangue 13%；Magnesium-based bentonite 4%；Potassium feldspar 8%；Albite 4%；Micron order spodumene 2%；Zirconium silicate 3%；Wollastonite 5%.

Preferably, chemical composition is by weight percentage in the china pug are as follows: SiO₂: 70%；Al₂O₃: 15%；CaO: 2.0%；ZrO₂: 3.5%；Na₂O+K₂O:2.6%；Fe₂O₃: 2.0%；MgO:3.5%； LiO₂: 0.8%；TiO₂: 0.5%； P₂O₅: 0.1%.

Preferably, the process flow that above-mentioned china pug prepares china is followed successively by by formula ingredient, is derived from desert for 45% The grains of sand, 9% pyrophillite, 7% camwood knag, 13% gangue, 4% magnesium-based bentonite, 8% potassium feldspar, 4% Albite, 2% micron order spodumene, 3% zirconium silicate and 5% nanometer wollastonite be put into ball mill and mixed Grinding, wherein material: ball: uniformly mixed pug is made in water 1:1.5:0.5；Then, uniformly mixed pug by sieving, Except iron, filters pressing, first time pugging, second of pugging and sizing sintering process, final pug can cross 350 meshes.

China pug made of raw material proportioning according to above-mentioned implementation 1-3 is once calcined in 1200 DEG C~1300 DEG C high temperature At from raw glaze china, the process of once-firing is as follows:

(1) room temperature~200 DEG C are heated up 2~3h to 300 DEG C at a slow speed, are fired in oxygen atmosphere, heating rate 1 ~1.5 DEG C/min；It heats up at a slow speed to prevent molding blank from cracking, sloughs the free water in molding blank and the combination on pug surface Water, pug enter the stage of dehydration and drying and consolidation steadily；

(2) 200 DEG C~800 DEG C, heating rate is improved, holding heating rate is 8~10 DEG C/min；The bone during this temperature Hydroxyl in porcelain pug in pyrophillite is constantly sloughed, camwood knag, gangue and organic impurities and humus in magnesium-based bentonite It gradually decomposes at high operating temperatures, china pug is fired in this temperature range and consolidated；Simultaneously in this temperature range, with temperature It constantly increases, the occurrence status of iron is also constantly changing in pyrophillite, under conditions of high-temperature oxydation, because of the oxygen atom in environment It is spread along vacancy into the crystal of pyrophillite, and impurity iron ionic valence condition in lattice is caused to change with energy level, pyrophyllite powder Body is gradually converted into snowy white, increases the whiteness of pug, while pyrophillite crystal form takes place and is changed into inclined pyrophillite, unsetting SiO₂And cristobalite；

(3) 800 DEG C~1200 DEG C, heating rate is 3~5 DEG C/min, carries out the sintering shrinkage forming process of china pug； Anyway crystal transition and crystal seed growth gradually occur for pyrophillite, camwood knag and gangue in this temperature range china pug, In-situ reaction reaction occurs in three kinds of raw materials between the aluminium oxide of different crystal phases, is the critical period of transformation toughening, reduces at this time Heating rate can prevent china from cracking；

(4) in 1200 DEG C~1300 DEG C range 3~6h of inside holding, it is passed through nitrogen in this temperature range, builds nitrogen gas Atmosphere, avoids the interference of ambient atmos, while extending soaking time, collectively promotes the three-dimensional netted crystal phase of china inside pug formation Structure gradually tends towards stability, and then improves china toughness after molding；

(5) 1300 DEG C~600 DEG C, high temperature is quickly cooled down the stage, and rate of temperature fall is 16~18 DEG C/min；In this temperature range Chilling is needed, prevents the low price ferro element contained in molding china to be oxidized to high price iron again and makes china yellowing, quality It is impermeable；

(6) 100 DEG C or less are naturally cooled to.

Comparative example 1:

A kind of High-tenacity high-strength far-infrared ceramic material, ceramic components are calculated by mass percentage are as follows: SiC toughening whisker 5%； Nanometer ZrO₂(2Y) precursor 15%；And the MgO proportion as framework material is 15%；Surplus is nanometer α-Al₂O₃； The nanometer ZrO₂(2Y) is the zirconium oxide precursor for being mixed with 2% rare-earth yttrium；The MgO is submicron order powder, granularity It is 0.1-1 μm；α-the Al₂O₃Purity is 99% or more nano alumina powder jointed, granularity 50-200nm；The SiC whisker Length is 200-500 μm.

Comparative example 2

A kind of iron tailings far-infrared ceramic material and preparation method thereof containing rare earth:

A, iron tailings is put into ball milling 30min in ball mill, after ball milling, crosses 350 meshes, obtains iron tailings powder；

B, the iron tailings powder for taking the step A of weight 35% to obtain, then add the titanium dioxide of the clay of weight 7%, 25% Silicon, 25% calcium carbonate, 7% aluminium oxide and 1% lanthanum nitrate and above-mentioned raw materials weight 15% water, mix simultaneously continue Stir 30min；

C, by the mixture in step B under the conditions of 100 DEG C, 1h is dried；

D, the mixing after drying in step C is crossed into 120 meshes after ball milling mixing 60min；

It E, is 30MPa in briquetting pressure by the mixing in step D, under conditions of pressure maintaining 1.5min, pottery is made in compression moulding Green body, is then put into sintering furnace and is sintered by porcelain billet body, finally the obtained iron tailings far-infrared ceramic material containing rare earth.

The performance test from raw glaze china of usury desert material:

Table 1 is normal direction total emissivity test result

Inspection project	Embodiment 1	Embodiment 2	Embodiment 3	Comparative example 1	Comparative example 2
						Normal direction whole radiation rate	0.88	0.90	0.91	0.80	0.85

As seen from the above table, it is produced by the present invention from raw glaze china even across higher than 800 DEG C condition processing after, infrared spoke It penetrates rate and is still maintained at higher level, the infrared emittance draw at 5-20 μm can reach 0.90 or more.

2 comprehensive mechanical property test result of table

As seen from the above table, the present invention, which is made from the intensity and toughness of raw glaze china, can reach height made from comparative example 1 The standard of strength high toughness, while water absorption rate is small, good transmittance, improves the thermal stability and rapid heat cycle state change of china Under stability, if desired add pigment and colored china be made, whiteness higher position can be improved the pure of the color of colored china Cleanliness.

In conclusion the present invention, which is made, from raw glaze china infrared emittance averagely can reach 0.90 or more, at the same have compared with Good mechanical property, preferable thermostable type, higher whiteness and light transmittance.

The above embodiment is a preferred embodiment of the present invention, but embodiments of the present invention are not by above-described embodiment Limitation, other any changes, modifications, substitutions, combinations, simplifications made without departing from the spirit and principles of the present invention, It should be equivalent substitute mode, be included in protection scope of the present invention.

Claims

1. a kind of far infrared of usury desert material is from raw glaze china, it is characterised in that: china pug component and weight percent Than are as follows: it is derived from the grains of sand in desert: 45% ~ 55%；Pyrophillite: 8% ~ 10%；Camwood knag: 6% ~ 8%；Gangue: 10% ~ 13%；Magnesium-based is swollen Profit soil: 2% ~ 4%；Potassium feldspar: 4% ~ 8%；Albite: 3% ~ 6%；Micron order spodumene: 1% ~ 3%；Zirconium silicate: 2% ~ 4%；Wollastonite: 4%~6%。

2. a kind of far infrared of usury desert material as described in claim 1 is from raw glaze china, it is characterised in that: the bone Chemical composition is by weight percentage in porcelain pug are as follows: SiO₂: 60% ~ 70%；Al₂O₃: 16% ~ 20%；CaO:2.5% ~ 4.5%；ZrO₂: 3.5%~5.0%；Na₂O+K₂O:2.6% ~ 4.6%；Fe₂O₃: 1.2% ~ 2.5%；MgO:2.8% ~ 3.8%；LiO₂: 0.8% ~ 1.5%；TiO₂: 0.5%~1.0%；P₂O₅: 0.1% ~ 0.2%.

3. a kind of far infrared of usury desert material as described in claim 1 is from raw glaze china, it is characterised in that: described to take The siliceous scale and silicon for being deposited in desert grains of sand surface are removed after needing to mix with water from the grains of sand in desert by ultrasonic cleaning Matter film.

4. a kind of far infrared of usury desert material as described in claim 1 is from raw glaze china, it is characterised in that: the purple Knaur needs successively to be pre-processed by smashing slurry, magnetic separation and the process flow of bleaching.

5. a kind of far infrared of usury according to any one of claims 1 to 4 desert material is from the preparation work of raw glaze china Skill, process flow are followed successively by by formula ingredient, ball milling, sieving, remove iron, filters pressing, first time pugging, second of pugging, sizing burning At, it is characterised in that: china pug is once sintered into 1200 DEG C ~ 1300 DEG C high temperature from raw glaze china, once-firing Sintering procedure is as follows:

(1) room temperature ~ 200 DEG C, at a slow speed heat up 2 ~ 3h to 300 DEG C, be fired in oxygen atmosphere, heating rate be 1 ~ 1.5 DEG C/ min；

(2) 200 DEG C ~ 900 DEG C, heating rate is improved, holding heating rate is 8 ~ 10 DEG C/min；

(3) 900 DEG C ~ 1200 DEG C, reducing heating rate prevents china from cracking, and heating rate is 3 ~ 5 DEG C/min；

(4) in 1200 DEG C ~ 1300 DEG C range 3 ~ 6h of inside holding, it is passed through nitrogen in this temperature range, builds nitrogen atmosphere, promotes China crystal phase stabilization is formed；

(5) 1300 DEG C ~ 600 DEG C, high temperature is quickly cooled down the stage, and rate of temperature fall is 16 ~ 18 DEG C/min；

(6) 100 DEG C or less are naturally cooled to.

6. a kind of preparation process of the far infrared of usury desert material as claimed in claim 5 from raw glaze china, feature Be: the pH that pug is adjusted in the first time pugging and second of pugging is 7 ~ 8 in alkalescent.