CN101623672A - 一种混有杂质的硅料的分选方法 - Google Patents
一种混有杂质的硅料的分选方法 Download PDFInfo
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- CN101623672A CN101623672A CN200810136298A CN200810136298A CN101623672A CN 101623672 A CN101623672 A CN 101623672A CN 200810136298 A CN200810136298 A CN 200810136298A CN 200810136298 A CN200810136298 A CN 200810136298A CN 101623672 A CN101623672 A CN 101623672A
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- Prior art keywords
- silicon material
- impurity
- mixed
- electric separation
- silicon
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- 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.)
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- 239000002210 silicon-based material Substances 0.000 title claims abstract description 266
- 239000012535 impurity Substances 0.000 title claims abstract description 186
- 238000000034 method Methods 0.000 title claims abstract description 92
- 238000000926 separation method Methods 0.000 claims abstract description 148
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 45
- 229910010271 silicon carbide Inorganic materials 0.000 claims abstract description 38
- 239000002390 adhesive tape Substances 0.000 claims abstract description 20
- 230000005684 electric field Effects 0.000 claims abstract description 20
- 239000010453 quartz Substances 0.000 claims abstract description 17
- 239000004570 mortar (masonry) Substances 0.000 claims abstract description 16
- 239000000428 dust Substances 0.000 claims abstract description 14
- 238000004064 recycling Methods 0.000 claims abstract description 5
- 239000007787 solid Substances 0.000 claims description 28
- 238000011017 operating method Methods 0.000 claims description 16
- 239000002699 waste material Substances 0.000 claims description 15
- 239000002245 particle Substances 0.000 claims description 13
- 239000004065 semiconductor Substances 0.000 claims description 5
- 239000000615 nonconductor Substances 0.000 claims description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 abstract description 30
- 229910052710 silicon Inorganic materials 0.000 abstract description 26
- 239000010703 silicon Substances 0.000 abstract description 26
- 238000005520 cutting process Methods 0.000 abstract description 7
- 239000002994 raw material Substances 0.000 abstract description 7
- 239000011863 silicon-based powder Substances 0.000 abstract description 6
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 229910021422 solar-grade silicon Inorganic materials 0.000 abstract 1
- 239000007788 liquid Substances 0.000 description 28
- 239000011812 mixed powder Substances 0.000 description 13
- 239000000377 silicon dioxide Substances 0.000 description 13
- 235000013312 flour Nutrition 0.000 description 12
- 239000006185 dispersion Substances 0.000 description 11
- 238000001035 drying Methods 0.000 description 7
- 238000011084 recovery Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 239000000243 solution Substances 0.000 description 5
- 239000013078 crystal Substances 0.000 description 4
- 239000004484 Briquette Substances 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- 229920000297 Rayon Polymers 0.000 description 2
- 230000001476 alcoholic effect Effects 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- DIKBFYAXUHHXCS-UHFFFAOYSA-N bromoform Chemical compound BrC(Br)Br DIKBFYAXUHHXCS-UHFFFAOYSA-N 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 239000003960 organic solvent Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 238000001291 vacuum drying Methods 0.000 description 2
- VNDYJBBGRKZCSX-UHFFFAOYSA-L zinc bromide Chemical compound Br[Zn]Br VNDYJBBGRKZCSX-UHFFFAOYSA-L 0.000 description 2
- UNMYWSMUMWPJLR-UHFFFAOYSA-L Calcium iodide Chemical compound [Ca+2].[I-].[I-] UNMYWSMUMWPJLR-UHFFFAOYSA-L 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 229950005228 bromoform Drugs 0.000 description 1
- 229910001622 calcium bromide Inorganic materials 0.000 description 1
- WGEFECGEFUFIQW-UHFFFAOYSA-L calcium dibromide Chemical compound [Ca+2].[Br-].[Br-] WGEFECGEFUFIQW-UHFFFAOYSA-L 0.000 description 1
- 229940046413 calcium iodide Drugs 0.000 description 1
- 229910001640 calcium iodide Inorganic materials 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 235000013339 cereals Nutrition 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- FJBFPHVGVWTDIP-UHFFFAOYSA-N dibromomethane Chemical compound BrCBr FJBFPHVGVWTDIP-UHFFFAOYSA-N 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000005188 flotation Methods 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000003049 inorganic solvent Substances 0.000 description 1
- 239000003350 kerosene Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 229910021421 monocrystalline silicon Inorganic materials 0.000 description 1
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 1
- 229920005591 polysilicon Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000000375 suspending agent Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 229940102001 zinc bromide Drugs 0.000 description 1
Landscapes
- Electrostatic Separation (AREA)
- Silicon Compounds (AREA)
Abstract
Description
Claims (10)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN200810136298A CN101623672A (zh) | 2008-11-26 | 2008-11-26 | 一种混有杂质的硅料的分选方法 |
Applications Claiming Priority (1)
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CN200810136298A CN101623672A (zh) | 2008-11-26 | 2008-11-26 | 一种混有杂质的硅料的分选方法 |
Publications (1)
Publication Number | Publication Date |
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CN101623672A true CN101623672A (zh) | 2010-01-13 |
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CN200810136298A Pending CN101623672A (zh) | 2008-11-26 | 2008-11-26 | 一种混有杂质的硅料的分选方法 |
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Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101898391A (zh) * | 2010-08-19 | 2010-12-01 | 英利能源(中国)有限公司 | 硅块脱胶系统和脱胶方法 |
WO2012003935A1 (de) | 2010-07-08 | 2012-01-12 | Evonik Degussa Gmbh | Elektrosortierung mittels koronaentladung |
CN102786053A (zh) * | 2012-07-17 | 2012-11-21 | 乐山新天源太阳能科技有限公司 | 用于分离碳化硅与硅粉的装置 |
CN105161301A (zh) * | 2015-09-22 | 2015-12-16 | 广东风华高新科技股份有限公司 | 多层陶瓷电容器的制备方法 |
CN105239163A (zh) * | 2015-09-21 | 2016-01-13 | 新疆大全新能源有限公司 | 多晶硅表面金属杂质含量的控制方法 |
CN109208073A (zh) * | 2018-11-27 | 2019-01-15 | 江苏拓正茂源新能源有限公司 | 一种太阳能多晶硅原料的制备工艺 |
-
2008
- 2008-11-26 CN CN200810136298A patent/CN101623672A/zh active Pending
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2012003935A1 (de) | 2010-07-08 | 2012-01-12 | Evonik Degussa Gmbh | Elektrosortierung mittels koronaentladung |
CN101898391A (zh) * | 2010-08-19 | 2010-12-01 | 英利能源(中国)有限公司 | 硅块脱胶系统和脱胶方法 |
CN101898391B (zh) * | 2010-08-19 | 2012-05-02 | 英利能源(中国)有限公司 | 硅块脱胶系统和脱胶方法 |
CN102786053A (zh) * | 2012-07-17 | 2012-11-21 | 乐山新天源太阳能科技有限公司 | 用于分离碳化硅与硅粉的装置 |
CN105239163A (zh) * | 2015-09-21 | 2016-01-13 | 新疆大全新能源有限公司 | 多晶硅表面金属杂质含量的控制方法 |
CN105161301A (zh) * | 2015-09-22 | 2015-12-16 | 广东风华高新科技股份有限公司 | 多层陶瓷电容器的制备方法 |
CN105161301B (zh) * | 2015-09-22 | 2018-01-30 | 广东风华高新科技股份有限公司 | 多层陶瓷电容器的制备方法 |
CN109208073A (zh) * | 2018-11-27 | 2019-01-15 | 江苏拓正茂源新能源有限公司 | 一种太阳能多晶硅原料的制备工艺 |
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Owner name: JIANGXI SAIWEI LDK SOLAR POLYSILICON CO., LTD. Free format text: FORMER OWNER: LDK SOLAR CO., LTD. Effective date: 20110510 |
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Free format text: CORRECT: ADDRESS; FROM: 338000 SAIWEI INDUSTRIAL PARK, HIGH-TECH. ECONOMIC DEVELOPMENT ZONE, XINYU CITY, JIANGXI PROVINCE TO: 338000 JIANGXI SAIWEI LDK SOLAR POLYSILICON CO., LTD. (MAHONG BASE), XINYU CITY, JIANGXI PROVINCE |
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Effective date of registration: 20110510 Address after: 338000 Jiangxi Xinyu LDK LDK solar polysilicon Co., Ltd. (Ma Hong base), Jiangxi, China Applicant after: Jiangxi Sunways LDK Solar Polysilicon Co., Ltd. Address before: 338000 LDK Industrial Park, hi tech Development Zone, Jiangxi, Xinyu Applicant before: LDK Solar Co., Ltd. |
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Open date: 20100113 |