CN108658451A - 用于石英玻璃应用的高纯度二氧化硅颗粒及制备所述颗粒的方法 - Google Patents

用于石英玻璃应用的高纯度二氧化硅颗粒及制备所述颗粒的方法 Download PDF

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Publication number
CN108658451A
CN108658451A CN201810913825.0A CN201810913825A CN108658451A CN 108658451 A CN108658451 A CN 108658451A CN 201810913825 A CN201810913825 A CN 201810913825A CN 108658451 A CN108658451 A CN 108658451A
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method described
silica
value
less
content
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English (en)
Chinese (zh)
Inventor
C·潘茨
G·蒂茨
S·米勒
M·鲁夫
B·弗林斯
H·劳勒德尔
J·贝尼施
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Evonik Operations GmbH
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Evonik Degussa GmbH
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Publication of CN108658451A publication Critical patent/CN108658451A/zh
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    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03BMANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B20/00Processes specially adapted for the production of quartz or fused silica articles, not otherwise provided for
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B33/00Silicon; Compounds thereof
    • C01B33/113Silicon oxides; Hydrates thereof
    • C01B33/12Silica; Hydrates thereof, e.g. lepidoic silicic acid
    • C01B33/18Preparation of finely divided silica neither in sol nor in gel form; After-treatment thereof
    • C01B33/187Preparation of finely divided silica neither in sol nor in gel form; After-treatment thereof by acidic treatment of silicates
    • C01B33/193Preparation of finely divided silica neither in sol nor in gel form; After-treatment thereof by acidic treatment of silicates of aqueous solutions of silicates
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B33/00Silicon; Compounds thereof
    • C01B33/113Silicon oxides; Hydrates thereof
    • C01B33/12Silica; Hydrates thereof, e.g. lepidoic silicic acid
    • C01B33/124Preparation of adsorbing porous silica not in gel form and not finely divided, i.e. silicon skeletons, by acidic treatment of siliceous materials
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B33/00Silicon; Compounds thereof
    • C01B33/113Silicon oxides; Hydrates thereof
    • C01B33/12Silica; Hydrates thereof, e.g. lepidoic silicic acid
    • C01B33/126Preparation of silica of undetermined type
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B33/00Silicon; Compounds thereof
    • C01B33/113Silicon oxides; Hydrates thereof
    • C01B33/12Silica; Hydrates thereof, e.g. lepidoic silicic acid
    • C01B33/126Preparation of silica of undetermined type
    • C01B33/128Preparation of silica of undetermined type by acidic treatment of aqueous silicate solutions
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03BMANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B19/00Other methods of shaping glass
    • C03B19/10Forming beads
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03BMANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B19/00Other methods of shaping glass
    • C03B19/10Forming beads
    • C03B19/1005Forming solid beads
    • C03B19/106Forming solid beads by chemical vapour deposition; by liquid phase reaction
    • C03B19/1065Forming solid beads by chemical vapour deposition; by liquid phase reaction by liquid phase reactions, e.g. by means of a gel phase
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03BMANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B19/00Other methods of shaping glass
    • C03B19/10Forming beads
    • C03B19/1095Thermal after-treatment of beads, e.g. tempering, crystallisation, annealing
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03CCHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C1/00Ingredients generally applicable to manufacture of glasses, glazes, or vitreous enamels
    • C03C1/02Pretreated ingredients
    • C03C1/022Purification of silica sand or other minerals
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03CCHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C14/00Glass compositions containing a non-glass component, e.g. compositions containing fibres, filaments, whiskers, platelets, or the like, dispersed in a glass matrix
    • C03C14/008Glass compositions containing a non-glass component, e.g. compositions containing fibres, filaments, whiskers, platelets, or the like, dispersed in a glass matrix the non-glass component being in molecular form
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03CCHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C3/00Glass compositions
    • C03C3/04Glass compositions containing silica
    • C03C3/06Glass compositions containing silica with more than 90% silica by weight, e.g. quartz
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01PINDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00Particle morphology
    • C01P2004/60Particles characterised by their size
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01PINDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00Physical properties of inorganic compounds
    • C01P2006/14Pore volume
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01PINDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00Physical properties of inorganic compounds
    • C01P2006/16Pore diameter
    • C01P2006/17Pore diameter distribution
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01PINDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00Physical properties of inorganic compounds
    • C01P2006/80Compositional purity
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/29Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2982Particulate matter [e.g., sphere, flake, etc.]

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Manufacturing & Machinery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Geochemistry & Mineralogy (AREA)
  • General Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Silicon Compounds (AREA)
  • Glass Compositions (AREA)
  • Glass Melting And Manufacturing (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
CN201810913825.0A 2011-02-22 2012-02-10 用于石英玻璃应用的高纯度二氧化硅颗粒及制备所述颗粒的方法 Pending CN108658451A (zh)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102011004532A DE102011004532A1 (de) 2011-02-22 2011-02-22 Hochreines Siliciumdioxidgranulat für Quarzglasanwendungen
DE102011004532.5 2011-02-22
CN2012800100352A CN103402933A (zh) 2011-02-22 2012-02-10 用于石英玻璃应用的高纯度二氧化硅颗粒及制备所述颗粒的方法

Related Parent Applications (1)

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CN2012800100352A Division CN103402933A (zh) 2011-02-22 2012-02-10 用于石英玻璃应用的高纯度二氧化硅颗粒及制备所述颗粒的方法

Publications (1)

Publication Number Publication Date
CN108658451A true CN108658451A (zh) 2018-10-16

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ID=45688164

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CN201810913825.0A Pending CN108658451A (zh) 2011-02-22 2012-02-10 用于石英玻璃应用的高纯度二氧化硅颗粒及制备所述颗粒的方法
CN2012800100352A Pending CN103402933A (zh) 2011-02-22 2012-02-10 用于石英玻璃应用的高纯度二氧化硅颗粒及制备所述颗粒的方法

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Country Status (12)

Country Link
US (2) US20140072803A1 (enExample)
EP (1) EP2678280B1 (enExample)
JP (1) JP5897043B2 (enExample)
KR (1) KR101911566B1 (enExample)
CN (2) CN108658451A (enExample)
CA (1) CA2827899C (enExample)
DE (1) DE102011004532A1 (enExample)
ES (1) ES2628382T3 (enExample)
PL (1) PL2678280T3 (enExample)
RU (1) RU2602859C2 (enExample)
TW (1) TWI557073B (enExample)
WO (1) WO2012113655A1 (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020228115A1 (zh) * 2019-05-14 2020-11-19 中天科技精密材料有限公司 石英粉及其制备方法

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10065865B2 (en) 2011-02-22 2018-09-04 Evonik Degussa Gmbh Process for preparing aqueous colloidal silica sols of high purity from alkali metal silicate solutions
CN104860322B (zh) * 2015-05-07 2017-09-26 中海油天津化工研究设计院有限公司 一种低钠离子含量高纯硅溶胶的制备方法
CN108698883A (zh) 2015-12-18 2018-10-23 贺利氏石英玻璃有限两合公司 石英玻璃制备中的二氧化硅的喷雾造粒
TWI733723B (zh) 2015-12-18 2021-07-21 德商何瑞斯廓格拉斯公司 不透明石英玻璃體的製備
KR20180095619A (ko) 2015-12-18 2018-08-27 헤래우스 크바르츠글라스 게엠베하 & 컴파니 케이지 실리카 유리 제조 동안 규소 함량의 증가
CN108698894A (zh) 2015-12-18 2018-10-23 贺利氏石英玻璃有限两合公司 在多腔式烘箱中制备石英玻璃体
KR20180094087A (ko) 2015-12-18 2018-08-22 헤래우스 크바르츠글라스 게엠베하 & 컴파니 케이지 실리카 과립으로부터 실리카 유리 제품의 제조
WO2017103153A1 (de) * 2015-12-18 2017-06-22 Heraeus Quarzglas Gmbh & Co. Kg Glasfasern und vorformen aus quarzglas mit geringem oh-, cl- und al-gehalt
EP3390303B1 (de) 2015-12-18 2024-02-07 Heraeus Quarzglas GmbH & Co. KG Herstellung von quarzglaskörpern mit taupunktkontrolle im schmelzofen
JP6940235B2 (ja) 2015-12-18 2021-09-22 ヘレウス クワルツグラス ゲーエムベーハー ウント コンパニー カーゲー 高融点金属の溶融坩堝内での石英ガラス体の調製
CN109153593A (zh) 2015-12-18 2019-01-04 贺利氏石英玻璃有限两合公司 合成石英玻璃粉粒的制备
WO2017103131A1 (de) * 2015-12-18 2017-06-22 Heraeus Quarzglas Gmbh & Co. Kg Verringern des erdalkalimetallgehalts von siliziumdioxidgranulat durch behandlung von kohlenstoffdotiertem siliziumdioxidgranulat bei hoher temperatur
JP7390198B2 (ja) * 2019-01-28 2023-12-01 三井金属鉱業株式会社 ガラス粒子、それを用いた導電性組成物及びガラス粒子の製造方法
RU2723623C1 (ru) * 2019-12-30 2020-06-16 Общество с ограниченной ответственностью "Инжиниринговый химико-технологический центр" (ООО "ИХТЦ") Способ получения кускового силикагеля
CN111976485B (zh) * 2020-08-17 2022-01-11 宿州竹梦光学科技有限公司 一种汽车中控触屏ag玻璃
CN113104855B (zh) * 2021-04-30 2022-03-15 武汉大学 球形二氧化硅的制备方法
CN113880098B (zh) * 2021-11-17 2022-12-09 江苏海格新材料有限公司 一种高纯球形硅微粉的生产方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60215532A (ja) * 1984-04-12 1985-10-28 Seiko Epson Corp 石英ガラスの製造方法
EP0474158A2 (en) * 1990-09-07 1992-03-11 Mitsubishi Chemical Corporation Silica glass powder and a method for its production and a silica glass body product made thereof
CN1642855A (zh) * 2002-03-18 2005-07-20 瓦克化学有限公司 高纯度硅石粉末、其制造方法及装置
WO2010037702A1 (de) * 2008-09-30 2010-04-08 Evonik Degussa Gmbh Verfahren zur herstellung von hochreinem sio2 aus silikatlösungen
CN101844770A (zh) * 2010-04-27 2010-09-29 中国神华能源股份有限公司 一种利用粉煤灰提铝残渣制备白炭黑的方法

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3459522A (en) 1963-07-08 1969-08-05 Corning Glass Works Method of treating a porous,high silica content glass
US4042361A (en) 1976-04-26 1977-08-16 Corning Glass Works Method of densifying metal oxides
JPS60204612A (ja) * 1984-03-29 1985-10-16 Nippon Sheet Glass Co Ltd 高純度二酸化珪素の製造方法
JPS6212608A (ja) * 1985-07-11 1987-01-21 Nippon Chem Ind Co Ltd:The 高純度シリカ及びその製造方法
US4973462A (en) * 1987-05-25 1990-11-27 Kawatetsu Mining Company, Ltd. Process for producing high purity silica
JPS63291808A (ja) * 1987-05-25 1988-11-29 Kawatetsu Kogyo Kk 高純度シリカの製造方法
JPH02229735A (ja) * 1989-02-28 1990-09-12 Shin Etsu Chem Co Ltd 石英ガラス部材
US5141786A (en) * 1989-02-28 1992-08-25 Shin-Etsu Chemical Co., Ltd. Synthetic silica glass articles and a method for manufacturing them
US5063179A (en) 1990-03-02 1991-11-05 Cabot Corporation Process for making non-porous micron-sized high purity silica
JPH054827A (ja) * 1990-09-07 1993-01-14 Mitsubishi Kasei Corp シリカガラス粉末及びその製法並びにこれを用いたシリカガラス成形体
DE19601415A1 (de) 1995-02-04 1996-08-08 Degussa Granulate auf Basis von pyrogen hergestelltem Siliciumdioxid, Verfahren zu ihrer Herstellung und ihre Verwendung
TWI221149B (en) * 1999-12-28 2004-09-21 Watanabe & Co Ltd Method for producing synthetic quartz glass
JP2001192225A (ja) * 1999-12-28 2001-07-17 Watanabe Shoko:Kk 石英ガラスの製造方法
DE10058616A1 (de) * 2000-11-25 2002-05-29 Degussa Fällungskieselsäuren mit hoher Struktur
EP1258456A1 (en) 2001-05-18 2002-11-20 Degussa AG Silica glass formation process
EP1283195B1 (en) 2001-08-01 2005-10-26 Novara Technology S.R.L. Sol-gel process for the production of optical fiber preforms
DE102004005409A1 (de) * 2004-02-03 2005-08-18 Degussa Ag Hydrophile Fällungskieselsäure für Entschäumerformulierungen
EP1717202A1 (en) 2005-04-29 2006-11-02 Degussa AG Sintered silicon dioxide materials
JP2010018470A (ja) * 2008-07-09 2010-01-28 Tosoh Corp 高純度熔融石英ガラスおよびその製造方法並びに、これを用いた部材および装置
DE102008035867A1 (de) * 2008-08-01 2010-02-04 Evonik Degussa Gmbh Neuartige Fällungskieselsäuren für Trägeranwendungen
CA2738561A1 (en) * 2008-09-30 2010-04-08 Evonik Degussa Gmbh Method for producing high-purity sio2 from silicate solutions

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60215532A (ja) * 1984-04-12 1985-10-28 Seiko Epson Corp 石英ガラスの製造方法
EP0474158A2 (en) * 1990-09-07 1992-03-11 Mitsubishi Chemical Corporation Silica glass powder and a method for its production and a silica glass body product made thereof
CN1642855A (zh) * 2002-03-18 2005-07-20 瓦克化学有限公司 高纯度硅石粉末、其制造方法及装置
WO2010037702A1 (de) * 2008-09-30 2010-04-08 Evonik Degussa Gmbh Verfahren zur herstellung von hochreinem sio2 aus silikatlösungen
CN101844770A (zh) * 2010-04-27 2010-09-29 中国神华能源股份有限公司 一种利用粉煤灰提铝残渣制备白炭黑的方法

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
《化学百科全书》编辑委员会编: "《化工百科全书 第3卷》", 31 March 1993, 北京:化学工业出版社 *
张福初等译: "《断裂力学》", 31 December 1982, 中国建筑工业出版社 *
陈丽特等: ""硅胶的碱处理和有机化改性"", 《江苏化工学院学报》 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020228115A1 (zh) * 2019-05-14 2020-11-19 中天科技精密材料有限公司 石英粉及其制备方法

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CN103402933A (zh) 2013-11-20
TWI557073B (zh) 2016-11-11
RU2602859C2 (ru) 2016-11-20
JP5897043B2 (ja) 2016-03-30
ES2628382T3 (es) 2017-08-02
KR101911566B1 (ko) 2018-10-24
CA2827899A1 (en) 2012-08-30
KR20140022380A (ko) 2014-02-24
DE102011004532A1 (de) 2012-08-23
EP2678280A1 (de) 2014-01-01
TW201247540A (en) 2012-12-01
CA2827899C (en) 2018-06-12
US20140072803A1 (en) 2014-03-13
US20170066654A1 (en) 2017-03-09
JP2014514229A (ja) 2014-06-19
WO2012113655A1 (de) 2012-08-30
PL2678280T3 (pl) 2017-10-31
EP2678280B1 (de) 2017-05-03
RU2013142832A (ru) 2015-03-27

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