CN101671022A - 一种从单/多晶硅切割料浆中回收太阳能级多晶硅的方法 - Google Patents
一种从单/多晶硅切割料浆中回收太阳能级多晶硅的方法 Download PDFInfo
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- CN101671022A CN101671022A CN200910187695A CN200910187695A CN101671022A CN 101671022 A CN101671022 A CN 101671022A CN 200910187695 A CN200910187695 A CN 200910187695A CN 200910187695 A CN200910187695 A CN 200910187695A CN 101671022 A CN101671022 A CN 101671022A
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- polysilicon
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- cutting slurry
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- 229910021420 polycrystalline silicon Inorganic materials 0.000 title claims abstract description 57
- 229920005591 polysilicon Polymers 0.000 title claims abstract description 53
- 238000000034 method Methods 0.000 title claims abstract description 36
- 238000005520 cutting process Methods 0.000 title claims abstract description 35
- 239000002002 slurry Substances 0.000 title claims abstract description 32
- 229910021421 monocrystalline silicon Inorganic materials 0.000 title abstract description 5
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 44
- 239000000843 powder Substances 0.000 claims abstract description 44
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 42
- 239000010703 silicon Substances 0.000 claims abstract description 42
- 239000000463 material Substances 0.000 claims abstract description 38
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims abstract description 26
- 238000005554 pickling Methods 0.000 claims abstract description 17
- 239000002202 Polyethylene glycol Substances 0.000 claims abstract description 11
- 229920001223 polyethylene glycol Polymers 0.000 claims abstract description 11
- 238000001914 filtration Methods 0.000 claims abstract description 10
- 238000001035 drying Methods 0.000 claims abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 8
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 44
- 238000003756 stirring Methods 0.000 claims description 42
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 33
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 28
- -1 polyoxyethylene Polymers 0.000 claims description 24
- 235000012054 meals Nutrition 0.000 claims description 23
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 claims description 22
- 229920003171 Poly (ethylene oxide) Polymers 0.000 claims description 22
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 claims description 22
- 239000007864 aqueous solution Substances 0.000 claims description 20
- 239000000243 solution Substances 0.000 claims description 20
- 239000002994 raw material Substances 0.000 claims description 17
- 239000007788 liquid Substances 0.000 claims description 16
- 229910017053 inorganic salt Inorganic materials 0.000 claims description 15
- 239000002184 metal Substances 0.000 claims description 15
- 238000002360 preparation method Methods 0.000 claims description 15
- 238000004062 sedimentation Methods 0.000 claims description 15
- 239000006228 supernatant Substances 0.000 claims description 15
- 229910052751 metal Inorganic materials 0.000 claims description 14
- 239000000203 mixture Substances 0.000 claims description 13
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 10
- 239000002253 acid Substances 0.000 claims description 10
- 238000007670 refining Methods 0.000 claims description 9
- 239000013078 crystal Substances 0.000 claims description 6
- 229910052786 argon Inorganic materials 0.000 claims description 5
- YXTPWUNVHCYOSP-UHFFFAOYSA-N bis($l^{2}-silanylidene)molybdenum Chemical compound [Si]=[Mo]=[Si] YXTPWUNVHCYOSP-UHFFFAOYSA-N 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 5
- 229910021343 molybdenum disilicide Inorganic materials 0.000 claims description 5
- 230000003252 repetitive effect Effects 0.000 claims description 5
- 238000000967 suction filtration Methods 0.000 claims description 5
- 238000010792 warming Methods 0.000 claims description 5
- 208000006558 Dental Calculus Diseases 0.000 claims description 3
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 claims description 3
- DPDMMXDBJGCCQC-UHFFFAOYSA-N [Na].[Cl] Chemical compound [Na].[Cl] DPDMMXDBJGCCQC-UHFFFAOYSA-N 0.000 claims description 3
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 claims description 2
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims description 2
- 239000001110 calcium chloride Substances 0.000 claims description 2
- 229910001628 calcium chloride Inorganic materials 0.000 claims description 2
- 229910052938 sodium sulfate Inorganic materials 0.000 claims description 2
- 235000011152 sodium sulphate Nutrition 0.000 claims description 2
- 239000002210 silicon-based material Substances 0.000 abstract description 10
- 238000005516 engineering process Methods 0.000 abstract description 9
- 239000012535 impurity Substances 0.000 abstract description 3
- 238000005266 casting Methods 0.000 abstract 2
- 230000004927 fusion Effects 0.000 abstract 2
- 238000007711 solidification Methods 0.000 abstract 1
- 230000008023 solidification Effects 0.000 abstract 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 8
- 238000011084 recovery Methods 0.000 description 7
- 238000004857 zone melting Methods 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 238000007796 conventional method Methods 0.000 description 4
- 239000012467 final product Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000000377 silicon dioxide Substances 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000000746 purification Methods 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 239000008247 solid mixture Substances 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 2
- 230000018044 dehydration Effects 0.000 description 2
- 238000006297 dehydration reaction Methods 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 235000013312 flour Nutrition 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000002441 X-ray diffraction Methods 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000002939 deleterious effect Effects 0.000 description 1
- 238000005188 flotation Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
- 229960001866 silicon dioxide Drugs 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000011863 silicon-based powder Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Images
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- Silicon Compounds (AREA)
Abstract
Description
成分 | Si | SiC | Fe | 其它 |
含量(质量%) | 30.5250 | 34.9966 | 5.9570 | 余量 |
成分 | Si | SiC | Fe | 其它 |
含量(质量%) | 89.402 | 10.140 | 0.458 | 余量 |
Claims (8)
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CN2009101876958A CN101671022B (zh) | 2009-09-28 | 2009-09-28 | 一种从单/多晶硅切割料浆中回收太阳能级多晶硅的方法 |
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CN2009101876958A CN101671022B (zh) | 2009-09-28 | 2009-09-28 | 一种从单/多晶硅切割料浆中回收太阳能级多晶硅的方法 |
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CN101671022A true CN101671022A (zh) | 2010-03-17 |
CN101671022B CN101671022B (zh) | 2011-05-25 |
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CN2009101876958A Expired - Fee Related CN101671022B (zh) | 2009-09-28 | 2009-09-28 | 一种从单/多晶硅切割料浆中回收太阳能级多晶硅的方法 |
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Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101941699A (zh) * | 2010-09-14 | 2011-01-12 | 东北大学 | 由单晶硅和多晶硅切割废料中回收硅和碳化硅的方法 |
CN102163645A (zh) * | 2010-11-25 | 2011-08-24 | 浙江昱辉阳光能源有限公司 | 一种用于多线切割后硅片的预冲洗方法 |
CN102530967A (zh) * | 2012-01-06 | 2012-07-04 | 中国矿业大学 | 一种利用废旧硅钼棒制备白炭黑的工艺 |
CN102583543A (zh) * | 2012-02-08 | 2012-07-18 | 中国矿业大学 | 废二硅化钼中钼的回收方法 |
CN102642835A (zh) * | 2012-04-19 | 2012-08-22 | 镇江环太硅科技有限公司 | 从金刚线切割晶硅产生的废料中回收硅料的方法 |
CN102815704A (zh) * | 2012-09-18 | 2012-12-12 | 复旦大学 | 一种回收硅切削废料制备太阳能级多晶硅的方法 |
CN103086378A (zh) * | 2013-01-28 | 2013-05-08 | 东北大学 | 一种用晶体硅切割废料电热冶金制备太阳能多晶硅的方法 |
CN104962763A (zh) * | 2015-05-25 | 2015-10-07 | 北京科技大学 | 一种用晶体硅切割废料生产铬系铁合金的方法 |
CN105523557A (zh) * | 2016-02-14 | 2016-04-27 | 东北大学 | 一种晶体硅金刚石线切割废料浆回收再利用的方法 |
CN105603291A (zh) * | 2016-02-01 | 2016-05-25 | 四川川投峨眉铁合金(集团)有限责任公司 | 回收利用晶体硅切割废粉料冶炼硅铬合金的生产方法 |
CN108408728A (zh) * | 2018-03-26 | 2018-08-17 | 张余庆 | 一种晶体硅切割废料浆处理装置 |
CN113603094A (zh) * | 2021-08-19 | 2021-11-05 | 江苏美科太阳能科技有限公司 | 一种多晶硅边角料提纯至高纯硅的方法 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101113029B (zh) * | 2006-07-26 | 2010-09-29 | 金柏林 | 单晶硅切割废液的处理回收方法 |
CN101327622B (zh) * | 2007-06-21 | 2011-04-06 | 正申科技(北京)有限责任公司 | 单晶与多晶硅线切割用砂浆回收方法 |
-
2009
- 2009-09-28 CN CN2009101876958A patent/CN101671022B/zh not_active Expired - Fee Related
Cited By (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101941699B (zh) * | 2010-09-14 | 2012-08-22 | 东北大学 | 由单晶硅和多晶硅切割废料中回收硅和碳化硅的方法 |
CN101941699A (zh) * | 2010-09-14 | 2011-01-12 | 东北大学 | 由单晶硅和多晶硅切割废料中回收硅和碳化硅的方法 |
CN102163645A (zh) * | 2010-11-25 | 2011-08-24 | 浙江昱辉阳光能源有限公司 | 一种用于多线切割后硅片的预冲洗方法 |
CN102530967A (zh) * | 2012-01-06 | 2012-07-04 | 中国矿业大学 | 一种利用废旧硅钼棒制备白炭黑的工艺 |
CN102530967B (zh) * | 2012-01-06 | 2013-04-17 | 中国矿业大学 | 一种利用废旧硅钼棒制备白炭黑的工艺 |
CN102583543B (zh) * | 2012-02-08 | 2014-04-30 | 中国矿业大学 | 废二硅化钼中钼的回收方法 |
CN102583543A (zh) * | 2012-02-08 | 2012-07-18 | 中国矿业大学 | 废二硅化钼中钼的回收方法 |
CN102642835A (zh) * | 2012-04-19 | 2012-08-22 | 镇江环太硅科技有限公司 | 从金刚线切割晶硅产生的废料中回收硅料的方法 |
CN102815704A (zh) * | 2012-09-18 | 2012-12-12 | 复旦大学 | 一种回收硅切削废料制备太阳能级多晶硅的方法 |
CN103086378A (zh) * | 2013-01-28 | 2013-05-08 | 东北大学 | 一种用晶体硅切割废料电热冶金制备太阳能多晶硅的方法 |
CN103086378B (zh) * | 2013-01-28 | 2014-07-23 | 东北大学 | 一种用晶体硅切割废料电热冶金制备太阳能多晶硅的方法 |
CN104962763A (zh) * | 2015-05-25 | 2015-10-07 | 北京科技大学 | 一种用晶体硅切割废料生产铬系铁合金的方法 |
CN105603291A (zh) * | 2016-02-01 | 2016-05-25 | 四川川投峨眉铁合金(集团)有限责任公司 | 回收利用晶体硅切割废粉料冶炼硅铬合金的生产方法 |
CN105523557A (zh) * | 2016-02-14 | 2016-04-27 | 东北大学 | 一种晶体硅金刚石线切割废料浆回收再利用的方法 |
CN108408728A (zh) * | 2018-03-26 | 2018-08-17 | 张余庆 | 一种晶体硅切割废料浆处理装置 |
CN108408728B (zh) * | 2018-03-26 | 2022-09-30 | 张余庆 | 一种晶体硅切割废料浆处理装置 |
CN113603094A (zh) * | 2021-08-19 | 2021-11-05 | 江苏美科太阳能科技有限公司 | 一种多晶硅边角料提纯至高纯硅的方法 |
CN113603094B (zh) * | 2021-08-19 | 2023-03-03 | 江苏美科太阳能科技股份有限公司 | 一种多晶硅边角料提纯至高纯硅的方法 |
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CN101671022B (zh) | 2011-05-25 |
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Inventor after: Xing Pengfei Inventor after: Wang Yaobin Inventor after: Guo Jing Inventor after: Li Ruibing Inventor after: Lin Anthony Inventor after: Tu Ganfeng Inventor before: Xing Pengfei Inventor before: Wang Yaobin Inventor before: Guo Jing Inventor before: Li Jinjiang Inventor before: Lin Anthony Inventor before: Tu Ganfeng |
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Free format text: CORRECT: INVENTOR; FROM: XING PENGFEI WANG YAOBIN GUO JING LI JINJIANG LIN ANTHONY TU GANFENG TO: XING PENGFEI WANG YAOBIN GUO JING LI RUIBING LIN ANTHONY TU GANFENG |
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Application publication date: 20100317 Assignee: INNER MONGOLIA HUAXIN SILICON MATERIAL TECHNOLOGY CO.,LTD. Assignor: Northeastern University Contract record no.: 2018210000031 Denomination of invention: Method for recovering solar-grade polysilicon from single crystal silicon/polysilicon cutting slurry Granted publication date: 20110525 License type: Exclusive License Record date: 20181115 |
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