MX2021014519A - Afinación química selectiva de pequeñas burbujas en vidrio. - Google Patents

Afinación química selectiva de pequeñas burbujas en vidrio.

Info

Publication number
MX2021014519A
MX2021014519A MX2021014519A MX2021014519A MX2021014519A MX 2021014519 A MX2021014519 A MX 2021014519A MX 2021014519 A MX2021014519 A MX 2021014519A MX 2021014519 A MX2021014519 A MX 2021014519A MX 2021014519 A MX2021014519 A MX 2021014519A
Authority
MX
Mexico
Prior art keywords
molten glass
fining
undercurrent
skimmer
glass bath
Prior art date
Application number
MX2021014519A
Other languages
English (en)
Inventor
Roger P Smith
Zhongming Wang
Scott Weil
Original Assignee
Owens Brockway Glass Container
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Owens Brockway Glass Container filed Critical Owens Brockway Glass Container
Publication of MX2021014519A publication Critical patent/MX2021014519A/es

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03BMANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B5/00Melting in furnaces; Furnaces so far as specially adapted for glass manufacture
    • C03B5/16Special features of the melting process; Auxiliary means specially adapted for glass-melting furnaces
    • C03B5/225Refining
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03BMANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B5/00Melting in furnaces; Furnaces so far as specially adapted for glass manufacture
    • C03B5/16Special features of the melting process; Auxiliary means specially adapted for glass-melting furnaces
    • C03B5/235Heating the glass
    • C03B5/2356Submerged heating, e.g. by using heat pipes, hot gas or submerged combustion burners
    • 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
    • C03C1/004Refining agents
    • 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
    • C03C3/076Glass compositions containing silica with 40% to 90% silica, by weight
    • C03C3/078Glass compositions containing silica with 40% to 90% silica, by weight containing an oxide of a divalent metal, e.g. an oxide of zinc
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03BMANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2211/00Heating processes for glass melting in glass melting furnaces
    • C03B2211/20Submerged gas heating
    • C03B2211/22Submerged gas heating by direct combustion in the melt
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03BMANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2211/00Heating processes for glass melting in glass melting furnaces
    • C03B2211/20Submerged gas heating
    • C03B2211/22Submerged gas heating by direct combustion in the melt
    • C03B2211/23Submerged gas heating by direct combustion in the melt using oxygen, i.e. pure oxygen or oxygen-enriched air
    • 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P40/00Technologies relating to the processing of minerals
    • Y02P40/50Glass production, e.g. reusing waste heat during processing or shaping

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Combustion & Propulsion (AREA)
  • Glass Compositions (AREA)
  • Glass Melting And Manufacturing (AREA)
  • Surface Treatment Of Glass (AREA)

Abstract

Se describe un método para afinar el vidrio que incluye hacer fluir un baño de vidrio fundido (22) a través de una cámara de afinación (20). El baño de vidrio fundido (22) tiene una corriente subyacente (62) que fluye debajo de un espumador (50) que se sumerge parcialmente en el baño de vidrio fundido (22). Uno o más agentes de afinación se introducen en la corriente subyacente del baño de vidrio fundido directamente debajo del espumador a partir de un gas portador. De esta manera, el o los agentes de afinación se pueden dirigir selectivamente a las burbujas de gas (82) dibujadas debajo del espumador (50) dentro de la corriente subyacente (62) del baño de vidrio fundido (22) para su retiro. El método se puede emplear para afinar el vidrio fundido producido en un crisol de combustión sumergida (14). También se describe un recipiente de afinación para afinar vidrio fundido.
MX2021014519A 2019-10-01 2020-09-30 Afinación química selectiva de pequeñas burbujas en vidrio. MX2021014519A (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US16/590,072 US11697608B2 (en) 2019-10-01 2019-10-01 Selective chemical fining of small bubbles in glass
PCT/US2020/053396 WO2021067352A1 (en) 2019-10-01 2020-09-30 Selective chemical fining of small bubbles in glass

Publications (1)

Publication Number Publication Date
MX2021014519A true MX2021014519A (es) 2022-03-17

Family

ID=73014599

Family Applications (1)

Application Number Title Priority Date Filing Date
MX2021014519A MX2021014519A (es) 2019-10-01 2020-09-30 Afinación química selectiva de pequeñas burbujas en vidrio.

Country Status (11)

Country Link
US (2) US11697608B2 (es)
EP (1) EP4038027B1 (es)
AU (1) AU2020357627A1 (es)
BR (1) BR112021025302A2 (es)
CA (1) CA3144523A1 (es)
CL (1) CL2021003110A1 (es)
CO (1) CO2022003295A2 (es)
DE (1) DE202020005892U1 (es)
MX (1) MX2021014519A (es)
PE (1) PE20220922A1 (es)
WO (1) WO2021067352A1 (es)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11667555B2 (en) * 2020-02-12 2023-06-06 Owens-Brockway Glass Container Inc. Glass redox control in submerged combustion melting
US11485664B2 (en) 2019-10-01 2022-11-01 Owens-Brockway Glass Container Inc. Stilling vessel for submerged combustion melter
US11697608B2 (en) * 2019-10-01 2023-07-11 Owens-Brockway Glass Container Inc. Selective chemical fining of small bubbles in glass
US11459263B2 (en) 2019-10-01 2022-10-04 Owens-Brockway Glass Container Inc. Selective chemical fining of small bubbles in glass
CN114276001B (zh) * 2021-09-18 2024-03-26 长兴旗滨玻璃有限公司 一种低气泡含量的浮法玻璃制备方法及浮法玻璃

Family Cites Families (89)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US590068A (en) 1897-09-14 Clutch
US1923221A (en) * 1931-03-23 1933-08-22 Mercie P Locke Process of melting glass
FR1559817A (es) * 1968-01-23 1969-03-14
FR2456713A1 (fr) * 1979-05-17 1980-12-12 Emballage Ste Gle Pour Melanges vitrifiables
US4632687A (en) * 1985-06-25 1986-12-30 Ppg Industries, Inc. Method of melting raw materials for glass or the like using solid fuels or fuel-batch mixtures
US5006144A (en) * 1990-06-25 1991-04-09 Ppg Industries, Inc. Melting glass with oxidation control and lowered emissions
US5100453A (en) * 1991-03-07 1992-03-31 Glasstech, Inc. Method for recycling scrap mineral fibers
DE4207059C1 (de) * 1992-03-06 1993-10-21 Schott Glaswerke Verfahren zur Läuterung oxidischer Schmelzen
US5395806A (en) * 1993-08-28 1995-03-07 Chemical Products Corporation Dense, granular alkaline earth metal carbonate and alkali metal salt composition for use in glass manufacture
US5665137A (en) * 1995-08-15 1997-09-09 Owens-Corning Fiberglas Technology, Inc. Method for controlling secondary foam during glass melting
US5922097A (en) * 1996-06-12 1999-07-13 Praxair Technology, Inc. Water enhanced fining process a method to reduce toxic emissions from glass melting furnaces
US5785726A (en) * 1996-10-28 1998-07-28 Corning Incorporated Method of reducing bubbles at the vessel/glass interface in a glass manufacturing system
FR2774085B3 (fr) * 1998-01-26 2000-02-25 Saint Gobain Vitrage Procede de fusion et d'affinage de matieres vitrifiables
DE19822437C1 (de) * 1998-05-19 1999-07-29 Schott Glas Verfahren zum physikalischen Läutern einer Flüssigkeit und Vorrichtung zur Durchführung des Verfahrens
JP3861460B2 (ja) * 1998-06-26 2006-12-20 旭硝子株式会社 溶融ガラスの減圧脱泡方法
DE19939771B4 (de) * 1999-08-21 2004-04-15 Schott Glas Verfahren zur Läuterung von Glasschmelzen
DE10009425A1 (de) * 2000-02-28 2001-09-06 Schott Glas Verfahren zur Sauerstoffläuterung von Glasschmelzen
US20020134287A1 (en) * 2001-03-23 2002-09-26 Olin-Nunez Miguel Angel Method and system for feeding and burning a pulverized fuel in a glass melting furnace, and burner for use in the same
US7538050B2 (en) * 2002-02-05 2009-05-26 Nippon Electric Glass Co., Ltd. Glass composition
DE10214449B4 (de) * 2002-03-30 2005-03-24 Schott Ag Verfahren zur Herstellung von alkalifreien Aluminosilicatgläsern
FR2843107B1 (fr) 2002-07-31 2005-06-17 Saint Gobain Four a cuves en serie pour la preparation de composition de verre a faible taux d'infondus
US20060174655A1 (en) * 2003-04-15 2006-08-10 Hisashi Kobayashi Process of fining glassmelts using helium bubblles
US7451621B2 (en) * 2005-05-25 2008-11-18 Praxair Technology, Inc. Bubble formation in liquid such as molten glass
FR2887870B1 (fr) * 2005-06-30 2007-10-05 Snc Eurokera Soc En Nom Collec Elaboration de vitroceramiques de beta-quartz et/ou de beta-spodumene, d'articles en de telles vitroceramiques; vitroceramiques, arcticles en lesdites vitroceramiques et verres precurseurs
US20070207912A1 (en) * 2006-03-02 2007-09-06 Guardian Industries Corp. Method of making glass including use of boron oxide for reducing glass refining time
FR2905693B1 (fr) * 2006-09-07 2009-06-26 Saint Gobain Vetrotex Fusion du verre en presence de sulfure
KR20090089349A (ko) * 2006-11-30 2009-08-21 아사히 가라스 가부시키가이샤 글래스 용융 장치
US8196434B2 (en) * 2007-08-08 2012-06-12 Corning Incorporated Molten glass delivery apparatus for optical quality glass
CN101835718B (zh) * 2007-10-25 2013-11-06 旭硝子株式会社 基板用玻璃组合物及其制造方法
US20090320525A1 (en) * 2008-06-26 2009-12-31 William Weston Johnson Method of bubbling a gas into a glass melt
DE102009006958B4 (de) * 2009-01-31 2012-08-16 Beteiligungen Sorg Gmbh & Co. Kg Schmelzeinrichtung für die Erzeugung einer Glasschmelze, Verfahren und Verwendung
DE102009013714B4 (de) * 2009-03-20 2016-07-21 Schott Ag Verfahren zum Läutern von Glasschmelzen
DE102009002336B4 (de) * 2009-04-09 2012-09-20 Schott Ag Verfahren und Vorrichtung zum Läutern einer Glasschmelze
JP2011068856A (ja) * 2009-08-31 2011-04-07 Canon Inc 着色粒子
US8402787B2 (en) * 2009-10-21 2013-03-26 Ocv Intellectual Capital, Llc Molten glass delivery and refining system
US20150050461A1 (en) * 2010-03-18 2015-02-19 Dening Yang Plate glass with colorful glaze layer and manufacuring process thereof
DE102010023176B4 (de) * 2010-06-09 2013-02-21 Schott Ag Verfahren zur Herstellung von Klarglas oder klarem Ziehglas unter Verwendung eines speziellen Läuterverfahrens
US9021838B2 (en) 2010-06-17 2015-05-05 Johns Manville Systems and methods for glass manufacturing
US8707739B2 (en) * 2012-06-11 2014-04-29 Johns Manville Apparatus, systems and methods for conditioning molten glass
US9145319B2 (en) * 2012-04-27 2015-09-29 Johns Manville Submerged combustion melter comprising a melt exit structure designed to minimize impact of mechanical energy, and methods of making molten glass
US8973405B2 (en) * 2010-06-17 2015-03-10 Johns Manville Apparatus, systems and methods for reducing foaming downstream of a submerged combustion melter producing molten glass
US9776903B2 (en) * 2010-06-17 2017-10-03 Johns Manville Apparatus, systems and methods for processing molten glass
US8997525B2 (en) 2010-06-17 2015-04-07 Johns Manville Systems and methods for making foamed glass using submerged combustion
US8991215B2 (en) 2010-06-17 2015-03-31 Johns Manville Methods and systems for controlling bubble size and bubble decay rate in foamed glass produced by a submerged combustion melter
US9096452B2 (en) 2010-06-17 2015-08-04 Johns Manville Methods and systems for destabilizing foam in equipment downstream of a submerged combustion melter
US9096453B2 (en) * 2012-06-11 2015-08-04 Johns Manville Submerged combustion melting processes for producing glass and similar materials, and systems for carrying out such processes
WO2012074023A1 (ja) * 2010-12-02 2012-06-07 旭硝子株式会社 ガラス溶融炉、ガラス素地の変性方法、溶融ガラスの製造方法、ガラス製品の製造方法およびガラス製品の製造装置
US8806896B2 (en) * 2012-10-17 2014-08-19 Owens-Brockway Glass Container Inc. Process for melting and refining silica-based glass
DE102012100233B4 (de) * 2012-01-12 2014-05-15 Schott Ag Hochtransmittive Gläser mit hoher Solarisationsbeständigkeit, ihre Verwendung und Verfahren zu ihrer Herstellung
DE102012202695B4 (de) 2012-02-22 2015-10-22 Schott Ag Verfahren zur Herstellung von Gläsern und Glaskeramiken, LAS-Glas und LAS-Glaskeramiken und deren Verwendung
CN104136386B (zh) * 2012-02-24 2018-06-05 Ppg工业俄亥俄公司 具有高氧化的铁含量的含锂玻璃及其制造方法
US9533905B2 (en) * 2012-10-03 2017-01-03 Johns Manville Submerged combustion melters having an extended treatment zone and methods of producing molten glass
US9643869B2 (en) * 2012-07-03 2017-05-09 Johns Manville System for producing molten glasses from glass batches using turbulent submerged combustion melting
WO2014055199A1 (en) * 2012-10-03 2014-04-10 Johns Manville Methods and systems for destabilizing foam in equipment downstream of a submerged combustion melter
US9227865B2 (en) * 2012-11-29 2016-01-05 Johns Manville Methods and systems for making well-fined glass using submerged combustion
US9249042B2 (en) * 2013-03-01 2016-02-02 Owens-Brockway Glass Container Inc. Process and apparatus for refining molten glass
US9637406B2 (en) * 2013-03-15 2017-05-02 Owens-Brockway Glass Container Inc. Apparatus for melting and refining silica-based glass
GB201313653D0 (en) * 2013-07-31 2013-09-11 Knauf Insulation Doo Skofja Loka Melting of vitrifiable material
US9611163B2 (en) 2014-03-05 2017-04-04 Owens-Brockway Glass Container Inc. Process and apparatus for refining molten glass
US9533909B2 (en) * 2014-03-31 2017-01-03 Corning Incorporated Methods and apparatus for material processing using atmospheric thermal plasma reactor
US9932258B1 (en) * 2014-04-17 2018-04-03 Owens-Brockway Glass Container Inc. Apparatus and process for making glass and glass gobs
EP3137426B1 (fr) * 2014-04-29 2019-03-13 Saint-Gobain Glass France Procédé et dispositif de fusion et d'affinage du verre
US9776904B2 (en) * 2014-06-06 2017-10-03 Owens-Brockway Glass Container Inc. Process and apparatus for refining molten glass
CN106458677B (zh) * 2014-06-12 2019-10-08 Agc株式会社 熔融玻璃的制造方法、玻璃物品的制造方法、以及熔融玻璃制造装置
TW201641452A (zh) * 2015-03-20 2016-12-01 康寧公司 用以減少玻璃熔融物中附聚物的方法與系統
WO2016185863A1 (ja) * 2015-05-15 2016-11-24 日本電気硝子株式会社 強化ガラス板の製造方法、強化用ガラス板及び強化ガラス板
US10730779B2 (en) * 2015-09-01 2020-08-04 Owens-Brockway Glass Container Inc. Glass manufacturing apparatus and related processes
US10081563B2 (en) * 2015-09-23 2018-09-25 Johns Manville Systems and methods for mechanically binding loose scrap
SI3162771T1 (sl) * 2015-10-05 2019-01-31 Johns Manville Upravljanje pene v napravi, ki se nahaja za talilno napravo, s prilagoditvijo vsebnosti alkalijskega oksida v talilni napravi
US10144666B2 (en) * 2015-10-20 2018-12-04 Johns Manville Processing organics and inorganics in a submerged combustion melter
US9856958B2 (en) 2015-12-08 2018-01-02 GM Global Technology Operations LLC Torsional vibration damper
DE102016103755A1 (de) * 2016-03-02 2017-09-07 Beteiligungen Sorg Gmbh & Co. Kg Refiner und Glasschmelzanlage
DE102016109974A1 (de) * 2016-05-31 2017-11-30 Schott Ag Verfahren zur Herstellung eines Glasproduktes sowie verfahrensgemäß erhaltenes Glasprodukt
US10233105B2 (en) * 2016-10-14 2019-03-19 Johns Manville Submerged combustion melters and methods of feeding particulate material into such melters
JP6694074B2 (ja) * 2016-11-14 2020-05-13 Hoya株式会社 磁気記録媒体基板用ガラス、磁気記録媒体基板、磁気記録媒体および磁気記録再生装置用ガラススペーサ
WO2019023801A1 (en) * 2017-08-02 2019-02-07 National Research Council Of Canada SILICA GLASS COMPOSITES BASED ON BORE NITRIDE NANOTUBES
US10815142B2 (en) * 2018-03-15 2020-10-27 Owens-Brockway Glass Container Inc. Gradient fining tank for refining foamy molten glass and a method of using the same
US10807896B2 (en) * 2018-03-15 2020-10-20 Owens-Brockway Glass Container Inc. Process and apparatus for glass manufacture
JP2022501300A (ja) * 2018-09-25 2022-01-06 コーニング インコーポレイテッド 寸法安定性ガラス
DE102018124075A1 (de) * 2018-09-28 2020-04-02 Beteiligungen Sorg Gmbh & Co. Kg Schmelzwanne und Glasschmelzanlage
US11370686B2 (en) * 2019-10-01 2022-06-28 Owens-Brockway Glass Container Inc. Fining submerged combustion glass
US11319235B2 (en) * 2019-10-01 2022-05-03 Owens-Brockway Glass Container Inc. Glass manufacturing process
US11440829B2 (en) * 2019-10-01 2022-09-13 Owens-Brockway Glass Container Inc. Utilization of sulfate in the fining of submerged combustion melted glass
US11459263B2 (en) * 2019-10-01 2022-10-04 Owens-Brockway Glass Container Inc. Selective chemical fining of small bubbles in glass
US11667555B2 (en) * 2020-02-12 2023-06-06 Owens-Brockway Glass Container Inc. Glass redox control in submerged combustion melting
US11680005B2 (en) * 2020-02-12 2023-06-20 Owens-Brockway Glass Container Inc. Feed material for producing flint glass using submerged combustion melting
US11697608B2 (en) * 2019-10-01 2023-07-11 Owens-Brockway Glass Container Inc. Selective chemical fining of small bubbles in glass
US20210246060A1 (en) * 2020-02-12 2021-08-12 Owens-Brockway Glass Container Inc. Producing Flint Glass Using Submerged Combustion Melting
DE102020106050A1 (de) * 2020-03-05 2021-09-09 Schott Ag Verfahren und Vorrichtung zum Schmelzen und Läutern von Glas, Glaskeramik oder insbesondere von zu Glaskeramik keramisierbarem Glas sowie verfahrensgemäß hergestelltes Glas oder Glaskeramik

Also Published As

Publication number Publication date
WO2021067352A1 (en) 2021-04-08
PE20220922A1 (es) 2022-05-30
EP4038027A1 (en) 2022-08-10
US20230348307A1 (en) 2023-11-02
CO2022003295A2 (es) 2022-04-19
CA3144523A1 (en) 2021-04-08
CL2021003110A1 (es) 2022-07-22
DE202020005892U1 (de) 2023-04-21
BR112021025302A2 (pt) 2022-04-12
EP4038027B1 (en) 2023-09-20
AU2020357627A1 (en) 2021-12-23
US20210094858A1 (en) 2021-04-01
US11697608B2 (en) 2023-07-11

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