WO2007066428A1 - 高純度シリコンの製造装置及び製造方法 - Google Patents
高純度シリコンの製造装置及び製造方法 Download PDFInfo
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- WO2007066428A1 WO2007066428A1 PCT/JP2006/314821 JP2006314821W WO2007066428A1 WO 2007066428 A1 WO2007066428 A1 WO 2007066428A1 JP 2006314821 W JP2006314821 W JP 2006314821W WO 2007066428 A1 WO2007066428 A1 WO 2007066428A1
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- Prior art keywords
- silicon
- crucible
- slag
- molten
- impurity
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Links
- 229910052710 silicon Inorganic materials 0.000 title claims abstract description 246
- 239000010703 silicon Substances 0.000 title claims abstract description 246
- 238000000034 method Methods 0.000 title abstract description 41
- 230000008569 process Effects 0.000 title abstract description 8
- 239000002893 slag Substances 0.000 claims abstract description 163
- 239000000463 material Substances 0.000 claims abstract description 109
- 238000010438 heat treatment Methods 0.000 claims abstract description 60
- 238000004519 manufacturing process Methods 0.000 claims abstract description 52
- 230000003647 oxidation Effects 0.000 claims abstract description 52
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 52
- 230000005674 electromagnetic induction Effects 0.000 claims abstract description 35
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 237
- 239000012535 impurity Substances 0.000 claims description 61
- 239000007800 oxidant agent Substances 0.000 claims description 26
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 12
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 11
- 239000007787 solid Substances 0.000 claims description 9
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 8
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 7
- 239000000377 silicon dioxide Substances 0.000 claims description 6
- 238000007599 discharging Methods 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 5
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 5
- 229910052581 Si3N4 Inorganic materials 0.000 claims description 4
- 239000011575 calcium Substances 0.000 claims description 4
- 239000000292 calcium oxide Substances 0.000 claims description 4
- 150000004649 carbonic acid derivatives Chemical class 0.000 claims description 4
- JYYOBHFYCIDXHH-UHFFFAOYSA-N carbonic acid;hydrate Chemical class O.OC(O)=O JYYOBHFYCIDXHH-UHFFFAOYSA-N 0.000 claims description 4
- 150000004679 hydroxides Chemical class 0.000 claims description 4
- 239000000395 magnesium oxide Substances 0.000 claims description 4
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims description 4
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims description 4
- 229910052783 alkali metal Inorganic materials 0.000 claims description 3
- 150000001340 alkali metals Chemical class 0.000 claims description 3
- 229910052784 alkaline earth metal Inorganic materials 0.000 claims description 3
- 150000001342 alkaline earth metals Chemical class 0.000 claims description 3
- 229910052791 calcium Inorganic materials 0.000 claims description 3
- KZHJGOXRZJKJNY-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Si]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O KZHJGOXRZJKJNY-UHFFFAOYSA-N 0.000 claims description 3
- 229910052863 mullite Inorganic materials 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 3
- -1 calcium halide Chemical class 0.000 claims description 2
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 claims description 2
- 229910052796 boron Inorganic materials 0.000 abstract description 23
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 abstract description 22
- 239000002994 raw material Substances 0.000 abstract description 19
- 238000007670 refining Methods 0.000 abstract description 8
- 239000000155 melt Substances 0.000 abstract description 5
- 230000006698 induction Effects 0.000 description 23
- 238000005553 drilling Methods 0.000 description 17
- 230000008018 melting Effects 0.000 description 17
- 238000002844 melting Methods 0.000 description 17
- 229910052751 metal Inorganic materials 0.000 description 10
- 239000002184 metal Substances 0.000 description 10
- 229910000831 Steel Inorganic materials 0.000 description 7
- 238000010586 diagram Methods 0.000 description 7
- 230000003628 erosive effect Effects 0.000 description 7
- 230000005484 gravity Effects 0.000 description 7
- 239000010959 steel Substances 0.000 description 7
- 230000004907 flux Effects 0.000 description 6
- 230000001590 oxidative effect Effects 0.000 description 6
- 239000011449 brick Substances 0.000 description 5
- 230000007797 corrosion Effects 0.000 description 5
- 238000005260 corrosion Methods 0.000 description 5
- 239000004020 conductor Substances 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 238000005498 polishing Methods 0.000 description 4
- 238000009991 scouring Methods 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 239000002131 composite material Substances 0.000 description 3
- 238000007747 plating Methods 0.000 description 3
- 229920001296 polysiloxane Polymers 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000000746 purification Methods 0.000 description 3
- 239000004065 semiconductor Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 238000010977 unit operation Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 2
- KKCBUQHMOMHUOY-UHFFFAOYSA-N Na2O Inorganic materials [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 description 2
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- UIIMBOGNXHQVGW-DEQYMQKBSA-M Sodium bicarbonate-14C Chemical compound [Na+].O[14C]([O-])=O UIIMBOGNXHQVGW-DEQYMQKBSA-M 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 229910000287 alkaline earth metal oxide Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910000019 calcium carbonate Inorganic materials 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 229910002804 graphite Inorganic materials 0.000 description 2
- 239000010439 graphite Substances 0.000 description 2
- 238000000227 grinding Methods 0.000 description 2
- 150000004677 hydrates Chemical class 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 239000011823 monolithic refractory Substances 0.000 description 2
- 239000012811 non-conductive material Substances 0.000 description 2
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000011574 phosphorus Substances 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- FDNAPBUWERUEDA-UHFFFAOYSA-N silicon tetrachloride Chemical compound Cl[Si](Cl)(Cl)Cl FDNAPBUWERUEDA-UHFFFAOYSA-N 0.000 description 2
- 239000002210 silicon-based material Substances 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 238000000638 solvent extraction Methods 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 238000007738 vacuum evaporation Methods 0.000 description 2
- 229910001928 zirconium oxide Inorganic materials 0.000 description 2
- 241000282693 Cercopithecidae Species 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 235000008708 Morus alba Nutrition 0.000 description 1
- 240000000249 Morus alba Species 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 229910000288 alkali metal carbonate Inorganic materials 0.000 description 1
- 150000008041 alkali metal carbonates Chemical class 0.000 description 1
- 229910000272 alkali metal oxide Inorganic materials 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 235000010216 calcium carbonate Nutrition 0.000 description 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 238000007429 general method Methods 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000001095 inductively coupled plasma mass spectrometry Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 description 1
- 239000001095 magnesium carbonate Substances 0.000 description 1
- 229910000021 magnesium carbonate Inorganic materials 0.000 description 1
- 235000014380 magnesium carbonate Nutrition 0.000 description 1
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 description 1
- 239000000347 magnesium hydroxide Substances 0.000 description 1
- 229910001862 magnesium hydroxide Inorganic materials 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 239000012768 molten material Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 229910000027 potassium carbonate Inorganic materials 0.000 description 1
- 235000011181 potassium carbonates Nutrition 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000005368 silicate glass Substances 0.000 description 1
- 150000003376 silicon Chemical class 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B33/00—Silicon; Compounds thereof
- C01B33/02—Silicon
- C01B33/037—Purification
Definitions
- This relates to the equipment for manufacturing silicon and the method of manufacturing silicon using the same, and particularly to the high silicon 6) above suitable for solar cells.
- the present invention relates to an apparatus for manufacturing silicon suitable for manufacturing according to, and a method for manufacturing silicon using the same.
- the silicon used in this conductor is to convert the metal silicon of the purity obtained by lathe into silicon carbide, which is then pyrolyzed. It is manufactured by the so-called Siemens method and requires a very complex and rigorous process process, which inevitably increases the cost. For this reason, the silicon in the conductor is not suitable because it is too expensive and too expensive to manufacture for positive-current applications where cost is required to meet the demand.
- the report describes a method of combining chemical ranks and air evaporation under given conditions to produce a quality silica material, and in particular, in Implementation 3, the element of p was introduced in the induction pot.
- the contained silicon material is intermittently heated via black with frequent use (), held between by and, after being discharged, vacuum evaporation is performed under a given condition using an induction device.
- the usual method such as induction of electrical resistance is used in the report, and the silicon in the crushed form is mixed with the alkali compound and / or the component of the alkali compound and then melted and then melted.
- a method of refining silicon by contacting with a plasma is disclosed.
- the flux processing process of using aluminal, adding flux to the silicon with a wow concentration of pp or less, or adding flack containing a salt-based component, and the silica after the flattening process were completed.
- a method of manufacturing a silicon with a flattering process for removing the silicon flutter after completion is proposed.
- Impurity absorber consisting mainly of is added to silicon and mechanically by the rotation mechanism.
- the gas containing the vaporizable component of water vapor that reacts with impurities to form gaseous compounds is introduced. It describes a method of making a metal that releases the processing gas to the outside of the silicon via the absorber.
- the material is supplied on the molten silicon in the crucible.
- the charge is divided into several times, and the waste is discharged using the above sludge so that the amount used is kept to the minimum necessary and the molten silicon in the crucible is used.
- the stage we adopted a direct stage that directly electromagnetically melts the molten silicon in the crucible, thereby enabling the molten silicon in the crucible to be heated quickly and attempting to use the raw material silicon.
- the wall surface of the acupuncture point in the silicon area of Narirutsu should be strengthened.
- the silicon when the silicon is indirectly heated, the slur surface at the part in contact with the crucible is cooled by the radiation to the crucible, which has a relatively low temperature, from the slur surface open to the atmosphere. The degree decreases.
- the silicon is indirectly heated, the erosion of the crucible by the slur is better than that when the silicon is directly heated. It is speculated that this is partly due to the low value.
- Another object of the present invention is to use low-priced metal silicon as a raw material, which is suitable for solar cells due to slur, and has a high silicon content of 6 or more, especially a silicon content of at least ⁇ pp less than silicon. It is to provide a silicon device suitable for manufacturing an industrial model at low cost.
- the wall side above has the function of directly electromagnetically melting the molten silicon inside the pot.
- the columns are arranged and the above is at least direct
- the silicon device is characterized in that the region where the molten silicon comes into contact with the wall surface of the pot is made of an oxidizing material.
- a direct step arranged on the wall side of the ruth is used as the step of the above silicon, and as mentioned above, a small number of steps are used.
- the method for producing the silicon is characterized in that the area where the molten silicon comes into contact with the wall surface of the pot is made of an oxidizing agent in the direct stage.
- Ruth is made up of an oxidizing agent alone or an antioxidant agent and a non-oxidizing agent.
- an oxidizing agent alone or an antioxidant agent and a non-oxidizing agent.
- mullite, alumina, alumina cement, and carbon As a material that does not hinder the heat of the silicon generated by the fields of the section, a material having at least the above resistance was used, or a material was used as the quality of Ruth.
- a material containing a non-conductive material was used to prevent the generation of inductive flow. It's a thing. In this way, a device that does not interfere with the heat of the molten silicon and has an electromagnetic coil or the like arranged in that part is called a direct stage.
- the area where the wall and the silicon come into contact with each other is made of an oxidizing agent and does not contaminate the silicon under the operating conditions, and the silicon is generated by the external stage. It must not interfere with the heat of.
- an oxidizer alone, not only the oxidizer but also the high temperature is required.
- oxidizable if it exists in the silicon region where the molten silicon comes into contact with at least the direct stage, for example, a method of oxidizing an oxidizable tile, a method of spraying an oxidizer to a predetermined level, an oxidizer Amorphous material is placed between the outside and the outside to keep the oxidizing agent inside the pot, and the method to hold the oxidizing agent not to be bonded by the combination using the force of the dome.
- It may be a lining material provided on the inner wall of the crucible, or the silicon region may be made of an oxidizing material even if it is not a crucible body, and further, the body of the crucible body may be made of an oxidizing material. Good.
- oxidizers it can be selected in consideration of the oxidizability for (slurry) required by Ruth, depending on the degree of slurry, but it is preferable to select it in Gnesia or Mula.
- oxidative molten slurries come into contact with each other, and the slurries are supplied in several batches, and the smelting is discharged each time, so if, for example, a stage is used, this will occur.
- the silicon swings in the pot and heat is applied to the wall of the pot, so it is preferable to place it below that. If the wall made of this oxidant is higher than the normal level, its eating habit is reduced, and on the contrary, if it is lower, its eating habit is improved but it becomes vulnerable to damage and becomes damaged. Become.
- the method of controlling the air quality of the wall made of the oxidizing material it is possible to adopt the method generally used in the industry.
- the degree of crucible and heating of the added crucible and controlling the degree of particles constituting the crucible it is possible to manufacture a wall made of the oxidizing agent of the target pores.
- the method of measuring the gas of a wall made of Ruth's oxidizer can be measured using a general method, for example, the ratio of multiplying weight to true weight.
- the silicon was transferred from the silicon into the slurries as the slurries. It is preferable to use a mixture of an impurity that captures impurities in the inside and an impurity that immobilizes in the silicon and facilitates transfer from the molten silicon into the slurry.
- the impurity agent in the solid state onto the molten silicon in the pot. More preferably, the impurity-purifying agent, or
- Agents and impurities at least some agents, or some agents and impurities
- Examples of the above-mentioned slurries include, for example, a mixture of two or more selected from the group consisting of alumina-silica, lumium oxide, and calcium halide, and the agent for the above-mentioned slurries is an alkali agent.
- examples thereof include a mixture of two or more selected from the group consisting of an acid salt of a genus Lithium, a hydrate and a hydroxide of an alkali metal, an acid salt of an Algal genus, a hydrated carbonate and a hydroxide.
- Examples of the alkali that forms the impurity agent include lithium, sodium calcium, gnesium lucium, and barium.
- Examples of the agent include: Examples include sodium, sodium carbonate, sodium hydrogencarbonate, sodium hydrogencarbonate, magnesium carbonate, ruthenium carbonate, or magnesium hydroxide, sodium hydroxide, and sodium hydroxide. it can.
- Manufacture of Ming-Silicon which is not particularly limited, is the first step in which the silicon is prepared by a separately prepared device and the amount of the obtained silicon is placed in a pot and directly specified in the stage. Heating (or incubating) each time, and then the batch of the material consisting of impurities and the impurity agent from the slurry (the batch of the material to be fed in several times in the pot and / or in the solid state). Of the molten slurries are maintained for a certain period of time before being smelted, and then the smelting is discharged in stages (these are divided into several times below). The work done using a batch of fees
- the second is to explain the state of the silicone of the acupuncture point in the induction coil during the slash operation.
- 3 is the same as 2 for explaining the state of acupuncture silicone in the induction coil during slur.
- the crucible is made to house the silicon (shown in VI) and the slide (shown in degrees more than this) made of this silicon, and turn the acupuncture on the wall side of the acupuncture point.
- the induction coil () 2 that directly radiates the molten silicon inside the The coil 2 is provided with an oxidizing oxidizer 3) provided in the silicon a region of the acupuncture point where molten silicon comes into contact.
- the acupoint induction coil 2 is housed in 4 of which is provided with a mouth portion 4a corresponding to the acupoint mouth portion b.
- the silicon is placed by the device, the amount of the obtained silicon F VI is poured into the pot, and the 5 is closed, and then the induction coil 2 The heat of the molten silicon is started by energizing, and the silicon VI is heated up to a certain temperature below () above and the temperature is maintained thereafter.
- open point 5 of the acupuncture point and set a fixed amount (corresponding to the batch of the fee divided into several times) from the impure hopper 7 a
- the silicon is transferred to for use, and the silicon is solidified in this pot to complete the cycle and obtain the product silicon.
- the silicon slurry g contained in the crucible is the induction coil 2 2 as shown in 23, and the silicon is the crucible provided with the lining material 3.
- the (3) Z of the induction coil 2 is subjected to an inductive force (lenz) on the molten silicon VI in the crucible, which causes a pinchka to act on the molten silicon.
- a d that reaches the pot is generated between the lever and the silicone lining material 3, and the molten slag g enters into this d, and the slur g that has entered this d is at a temperature higher than that of the slag g.
- the temperature is higher than that of slur 9 which is located above silicon a of the crucible.
- the slag g crowded in d was heated to the molten liquid (below).
- the erosion of this acupoint can be resolved by selecting the oxidizing agent in consideration of the erosion of the inner lining material 3 of the above.
- a crucible made of aluminium cement with a size of xx is used, and in the silicon region, the inner diameter X is shown.
- an indeterminate shape is injected between the oxidative tensioning material (oxidation) shown in Fig. 1 and the wall surface of the crucible to determine the output as a direct stage.
- the coil was used.
- the body and the impure agent were used in kg respectively.
- the later time was taken as the time interval.
- a sample was taken from the product silicone obtained by solidification after the completion of the citrus using a cutting machine, and the obtained sample was measured for rons by plasmometry. Also, as in the above, the raw material silicon is citrated, and the longness of the sample obtained in the work of this cycle is calculated and averaged to obtain the ron (B) of the product silicon in this implementation.
- the crucible silicon a consisted of the oxidizing agent shown in 3 and consisted of the wall shown in 3, and the other pores consisted of alumina roof tile, except that the material shown in 3 was used.
- Manufacture silicon in the same manner as above, and in the same manner as above, in the long (B) cycle of silicon manufacture.
- This acupuncture point was prepared by adhering silicon a and other silicon.
- the crucible body consists of a wall made of oxidizer in Table 4Z and having 4
- the crucible wall is divided into sections, and each section is made of the same oxidant as in the same manner as in the case of the same but with different pore-filling material (oxidation, slurring, and making silicon
- carbonization, mullite, and alumina ignite were used as the oxidation resistance material of the lining material, and the lining material of the above-mentioned drawing was 2 3 4 5 6
- a large number of couples are placed on the wall surface of the ruth in correspondence with the above-mentioned compartments to measure the degree of slaking, and it is monitored whether molten silicon or molten sludge is generated by penetrating the ruth. did.
- the degree of the thermocouple in a certain image exceeds the predetermined value found in the preliminary experiment, it is considered that it occurred in the image and the penetration material is replaced for each cycle.
- the painting was rehabilitated and the next citar was continued.
- the number of citrus performed up to the upholstery in a certain painting was defined as the number of cytals in the lining applied to this painting.
- Fig. 6 Z shows the results of a series of tests. Note that in 6 the element indicating mullite alumina and the element indicating gnesia and the dotted lines indicating the element are overlapped on the axis indicating the number of times of use cital. The citral number was favorable even in the case of these oxidizing agents in the range below the pores.
- the raw material silicon was prepared in the same manner as above except that zirconium oxide was used as the material and the pore filling material was oxidized in the silicon area of the acupuncture body. It happened and it was necessary to replace the lining material.
- inexpensive metal silicon is used as the raw material, and slabs produce at least 6 high silicon, especially at least the amount of long silicon. Since it is possible to manufacture the silicon under pp at a low cost by an industrial model, it is necessary to manufacture a high silicon suitable for a positive battery which is required to be cost-effective in particular. It is of the intellectual value.
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Silicon Compounds (AREA)
Abstract
Description
Claims
Priority Applications (5)
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US12/086,041 US8038973B2 (en) | 2005-12-06 | 2006-07-20 | High purity silicon production system and production method |
EP06781733.8A EP1958923A4 (en) | 2005-12-06 | 2006-07-20 | APPARATUS AND PROCESS FOR PRODUCING HIGH-PURITY SILICON |
CN2006800458121A CN101321696B (zh) | 2005-12-06 | 2006-07-20 | 高纯度硅的制造装置以及制造方法 |
BRPI0619471-0A BRPI0619471A2 (pt) | 2005-12-06 | 2006-07-20 | sistema de produção de silìcio de alta pureza é método de sua produção |
NO20082608A NO20082608L (no) | 2005-12-06 | 2008-06-04 | Apparat og fremgamgsmate for fremstilling av hoyrent silisium |
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JP2005352672A JP4850501B2 (ja) | 2005-12-06 | 2005-12-06 | 高純度シリコンの製造装置及び製造方法 |
JP2005-352672 | 2005-12-06 |
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US (1) | US8038973B2 (ja) |
EP (1) | EP1958923A4 (ja) |
JP (1) | JP4850501B2 (ja) |
KR (1) | KR101075600B1 (ja) |
CN (1) | CN101321696B (ja) |
BR (1) | BRPI0619471A2 (ja) |
NO (1) | NO20082608L (ja) |
WO (1) | WO2007066428A1 (ja) |
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- 2006-07-20 BR BRPI0619471-0A patent/BRPI0619471A2/pt not_active IP Right Cessation
- 2006-07-20 EP EP06781733.8A patent/EP1958923A4/en not_active Withdrawn
- 2006-07-20 KR KR1020087013670A patent/KR101075600B1/ko not_active IP Right Cessation
- 2006-07-20 CN CN2006800458121A patent/CN101321696B/zh not_active Expired - Fee Related
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20120321541A1 (en) * | 2010-03-01 | 2012-12-20 | Dow Corning Corporation | Methods for Refining Aluminum-Containing Silicon |
CN104817087A (zh) * | 2015-05-04 | 2015-08-05 | 佳科太阳能硅(龙岩)有限公司 | 非石墨坩埚在中频炉上精炼硅的方法 |
CN113748086A (zh) * | 2019-04-30 | 2021-12-03 | 瓦克化学股份公司 | 使用颗粒介体精炼粗硅熔体的方法 |
CN113748086B (zh) * | 2019-04-30 | 2024-02-06 | 瓦克化学股份公司 | 使用颗粒介体精炼粗硅熔体的方法 |
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JP2007153693A (ja) | 2007-06-21 |
EP1958923A4 (en) | 2015-05-27 |
NO20082608L (no) | 2008-08-27 |
EP1958923A1 (en) | 2008-08-20 |
US8038973B2 (en) | 2011-10-18 |
BRPI0619471A2 (pt) | 2011-10-04 |
KR20080068735A (ko) | 2008-07-23 |
CN101321696B (zh) | 2012-05-23 |
CN101321696A (zh) | 2008-12-10 |
KR101075600B1 (ko) | 2011-10-21 |
JP4850501B2 (ja) | 2012-01-11 |
US20090155158A1 (en) | 2009-06-18 |
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