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11. 发明授权

US10852248B2 Apparatus and method for analyzing particles 有权
公开(公告)号：US10852248B2
公开(公告)日：2020-12-01
申请号：US16523226
申请日：2019-07-26
申请人： Heraeus Quarzglas GmbH & Co. KG
发明人： Stefan Weidlich , Markus Schmidt
IPC分类号： G01N21/956 , G01N15/14 , G01N21/53
摘要： One aspect is an apparatus for analyzing particles a capillary as a measuring cell with a hollow channel for receiving or passing through a test sample containing the particles includes a light source for generating a light beam, an optical device for coupling the light beam into the hollow channel at an input point for the purpose of illuminating the test sample, and a detector for detecting scattered light exiting the hollow channel. In one aspects, the hollow channel has an internal diameter DH in the range of 10 μm to 60 μm, that the light beam has a radial light intensity distribution with a minimum beam diameter DL, wherein the following applies to the diameter ratio DL/DH: 0.05

12. 发明授权

US10358373B2 Method for producing a pore-containing opaque quartz glass 有权
公开(公告)号：US10358373B2
公开(公告)日：2019-07-23
申请号：US15602919
申请日：2017-05-23
申请人： Heraeus Quarzglas GmbH & Co. KG
发明人： Christian Schenk , Gerrit Scheich , Nadine Tscholitsch
IPC分类号： C03B19/06 , C03B20/00
摘要： A method for producing a pore-containing opaque quartz glass includes: (a) producing porous SiO2 granulate particles from synthetically produced SiO2, (b) thermally densifying the SiO2 granulate particles to form partly densified SiO2 granulate particles, (c) forming a dispersion from the partly densified SiO2 granulate particles, (d) comminuting the partly densified SiO2 granulate particles to form a slip containing comminuted SiO2 granulate particles, (e) shaping the slip into a shaped body and forming a porous SiO2 green body with a green density rG, and (f) sintering the SiO2 green body into opaque quartz glass. To produce opaque quartz glass that is also suited for the use of spray granulate, during step (b), partly densified SiO2 granulate particles are produced with a specific surface BET-(A) between 0.025 and 2.5 m2/g, and during step (d), comminuted SiO2 granulate particles are produced with a specific surface BET-(B) between 4 and 10 m2/g.

13. 发明授权

US10315947B2 Method for producing a tube of glass 有权
公开(公告)号：US10315947B2
公开(公告)日：2019-06-11
申请号：US15647881
申请日：2017-07-12
申请人： Heraeus Quarzglas GmbH & Co. KG
发明人： Boris Gromann , Nigel Whippey
IPC分类号： B23K101/06 , B23K26/53 , C03B23/07 , C03B23/08 , C03B23/053 , B23K26/38 , B23K103/00
摘要： A method for forming a hollow cylinder, in a single step, into a quartz glass tube with a large outer diameter and high dimensional stability is provided. To produce the tube, the cylinder, while rotating, is softened in portions in a heating zone which is moved at a relative feed rate Va and the softened portion is radially expanded by a centrifugal force and/or internal overpressure applied in the hollow cylinder bore so as to form a deformation zone. The radial expansion of the softened portion is carried out at a location-dependent radial expansion rate Vr, the profile of which along the deformation zone has a maximum value Vr,max which is smaller than 20 cm/min. The temperature in a rear heating portion of the heating zone, assigned to the end of the deformation zone, is lower than in a front heating portion assigned to the beginning of the deformation zone.

14. 发明申请

US20190092674A1 PREPARATION OF AN OPAQUE QUARTZ GLASS BODY 审中-公开
公开(公告)号：US20190092674A1
公开(公告)日：2019-03-28
申请号：US16062303
申请日：2016-12-16
申请人： Heraeus Quarzglas GmbH & Co. KG
发明人： Matthias Otter , Michael Hünermann , Nils Christian Nielsen , Frank Wessely , Andreas Schreiber , Björn Roos , Gerrit Scheich
IPC分类号： C03B19/06 , C03C3/06 , C03C1/02
摘要： One aspect relates to a process for the preparation of a quartz glass body. The process includes providing a silicon dioxide granulate from a pyrogenically produced silicon dioxide powder, making a glass melt out of silicon dioxide granulate, and making a quartz glass body out of at least part of the glass melt. The size of the quartz glass body is reduced to obtain a quartz glass grain. The quartz glass body is processed to make a preform and an opaque quartz glass body is made from the preform. One aspect further relates to an opaque quartz glass body which is obtainable by this process. One aspect further relates to a reactor and an arrangement, which are each obtainable by further processing of the opaque quartz glass body.

15. 发明申请

US20190062197A1 PREPARATION OF QUARTZ GLASS BODIES FROM SILICON DIOXIDE GRANULATE 审中-公开
公开(公告)号：US20190062197A1
公开(公告)日：2019-02-28
申请号：US16061558
申请日：2016-12-16
申请人： Heraeus Quarzglas GmbH & Co. KG
发明人： Matthias OTTER , Walter LEHMANN , Michael HÜNERMANN , Nils Christian NIELSEN , Mirko WITTRIN , Markus WILDE
IPC分类号： C03C1/02 , C03B20/00 , C03B37/027 , C03B37/012 , C03C3/06
摘要： The invention relates to a process for the preparation of a quartz glass body comprising the process steps i.) Providing a silicon dioxide granulate obtainable from a silicon dioxide powder, wherein the silicon dioxide granulate has a larger particle size than the silicon dioxide powder, ii.) Making a glass melt out of silicon dioxide granulate and iii.) Making a quartz glass body out of at least part of the glass melt, wherein the melting crucible has at least one inlet and at least one outlet, wherein at least part of the glass melt is removed via the melting crucible outlet. The invention further relates to a quartz glass body which is obtainable by this process. The invention further relates to a light guide, an illuminant and a formed body, which are each obtainable by further processing of the quartz glass body.

16. 发明申请

US20190010073A1 QUARTZ GLASS COMPONENT OF HIGH THERMAL STABILITY, SEMIFINISHED PRODUCT THEREFOR, AND METHOD FOR PRODUCING THE SAME 审中-公开
公开(公告)号：US20190010073A1
公开(公告)日：2019-01-10
申请号：US16030179
申请日：2018-07-09
申请人： Heraeus Quarzglas GmbH & Co. KG
发明人： Christian SCHENK , Nadine TSCHOLITSCH , Thomas BAIER
IPC分类号： C03B20/00 , C03B32/02
摘要： In a known method for producing a quartz glass component, a crystal formation layer containing a crystallization promoter is produced on a coating surface of a base body of quartz glass. Starting therefrom, to provide a method for producing a quartz glass component of improved thermal strength and long-term stability which displays a comparatively small deformation particularly also in the case of rapid heating-up processes, it is suggested according to one aspect that a porous crystal formation layer containing amorphous SiO2 particles is produced with a mean thickness in the range of 0.1 to 5 mm, and that a substance which contains cesium and/or rubidium is used as the crystallization promoter.

17. 发明授权

US09718690B2 Method for producing a porous carbon product 有权
公开(公告)号：US09718690B2
公开(公告)日：2017-08-01
申请号：US15022340
申请日：2014-09-19
申请人： Heraeus Quarzglas GmbH & Co. KG
发明人： Christian Neumann , Matthias Otter , Jörg Becker , Sascha Pihan
IPC分类号： C01B31/02 , C04B35/52 , C04B35/63 , C04B35/638 , C04B38/00 , C04B38/04 , B01J20/30 , C04B111/00
CPC分类号： C01B31/02 , B01J20/20 , B01J20/28083 , B01J20/28085 , B01J20/3057 , B01J20/3078 , C01B32/05 , C04B35/52 , C04B35/6303 , C04B35/638 , C04B38/0022 , C04B38/04 , C04B2111/00793 , C04B2111/0081 , C04B2111/00836 , C04B2111/00853 , H01M4/583 , H01M4/96 , C04B38/0054 , C04B38/0064
摘要： Methods for producing porous carbon product utilize template material in the form of template particles containing macropores and a polymerizable carbon precursor substance. The macropores of the template are infiltrated with the precursor substance in dissolved or melted form. After carbonization of the infiltrated precursor substance, the template is removed to form the porous carbon product. In order to obtain a carbon structure with hierarchical porosity having a high fraction of mesopores having pore sizes in the range of 2 to 50 nm, after the infiltration and before carbonization, the precursor substance within the macropores of the template is subjected to a treatment at a foaming temperature at which the precursor substance foams under polycondensation and fills the macropores as substantially mesoporous foam, in which at least 70% of the pores have pore sizes in the range of 10 to 150 nm.

18. 发明授权

US09520594B2 Porous carbon product with layer composite structure 有权
标题翻译：多孔碳产品层复合结构
公开(公告)号：US09520594B2
公开(公告)日：2016-12-13
申请号：US14110665
申请日：2012-03-27
申请人： Christian Neumann , Jörg Becker
发明人： Christian Neumann , Jörg Becker
IPC分类号： H01M4/38 , H01M4/04 , H01M4/36 , C04B35/52 , C01B31/00 , C03B19/14 , C03B37/005 , C04B35/524 , C04B35/636 , C04B38/00 , H01M4/136 , H01M4/1397 , H01M4/58 , H01M4/587 , H01M4/62 , H01M10/0525 , H01M4/02
CPC分类号： H01M4/366 , C01B32/00 , C01P2006/12 , C03B19/1492 , C03B37/005 , C04B35/524 , C04B35/636 , C04B38/0032 , C04B2235/3418 , C04B2235/48 , C04B2235/6028 , H01M4/0416 , H01M4/0471 , H01M4/049 , H01M4/136 , H01M4/1397 , H01M4/362 , H01M4/382 , H01M4/5815 , H01M4/587 , H01M4/625 , H01M10/0525 , H01M2004/021 , C04B35/52 , C04B38/0054 , C04B38/0074
摘要： Inexpensive product consisting of porous carbon, with a pore structure which is suitable for retaining electrode parts which can be used in particular for a use as an electrode material for a lithium-sulphur secondary battery, and a method comprising the following method steps: (a) providing a template consisting of inorganic material which contains spherical nanoparticles and pores, (b) infiltrating the pores of the template with a precursor for carbon of a first variety, (c) carbonizing so as to form an inner layer on the nanoparticles with a first microporosity, (d) infiltrating the remaining pores of the template with a precursor substance for carbon of a second variety, (e) carbonizing the precursor substance, wherein an outer layer with a second microporosity which is lower than the first microporosity is produced on the inner layer, and (f) removing the template so as to form the carbon product with layer composite structure, comprising an inner layer consisting carbon with a first, relatively high microporosity, which has a free surface facing a cavity, and an outer layer consisting of carbon with a second, relatively low microporosity, which has a free surface facing away from the cavity.
摘要翻译：由多孔碳组成的廉价产品，其具有适用于保持特别用作锂硫二次电池的电极材料的电极部分的孔结构，以及包括以下方法步骤的方法：（a ）提供由包含球形纳米颗粒和孔的无机材料组成的模板，（b）用第一品种的碳的前体渗透模板的孔，（c）碳化以在纳米颗粒上形成内层，第一微孔，（d）用第二种碳的前体物质渗透模板的剩余孔，（e）碳化前体物质，其中具有低于第一微孔的第二微孔的外层产生于内层，和（f）去除模板以形成具有层复合结构的碳产物，其包含由碳组成的内层第一，具有面向空腔的自由表面的相对高的微孔，以及由具有第二相对低微孔的碳组成的外层，其具有面向空腔的自由表面。

19. 发明授权

US09409810B2 Method for producing synthetic quartz glass granules 有权
标题翻译：生产合成石英玻璃颗粒的方法
公开(公告)号：US09409810B2
公开(公告)日：2016-08-09
申请号：US14390991
申请日：2013-03-20
申请人： Heraeus Quarzglas GmbH & Co KG
发明人： Walter Lehmann , Thomas Kayser
IPC分类号： C03B20/00 , C03B19/09 , C03B19/10 , C03C23/00
CPC分类号： C03B20/00 , C03B19/095 , C03B19/1005 , C03B19/107 , C03B19/1095 , C03B2201/02 , C03B2201/03 , C03C23/0075
摘要： The production of quartz glass granules comprises the granulation of pyrogenically produced silicic acid and the formation of a SiO2 granulate (9), the drying and cleaning of the SiO2 granulate (9) by heating in an atmosphere containing halogen, and the vitrification of the SiO2 granulate (9) under a treatment gas which contains at least 30% by volume of helium and/or hydrogen. This process is time-consuming and expensive. In order to provide a method which, starting from a porous SiO2 granulate (9), allows the cost-effective production of dense, synthetic quartz glass granules suitable for melting bubble-free components of quartz glass, the invention proposes that the cleaning and vitrification of the SiO2 granulate (9) and a post-treatment of the vitrified quartz glass granules are carried out in each case in a rotary tube (6) of a rotary kiln (1), said rotary tube rotating about a central axis (7), wherein the rotary tube (6) comprises an inner wall made of a ceramic material during vitrification, and wherein the vitrified quartz glass granules are subjected to a post-treatment during a treatment period of at least 10 minutes in an atmosphere which contains less than 20% of helium or hydrogen at a treatment temperature of 300° C. or more.
摘要翻译：石英玻璃颗粒的生产包括热解产生的硅酸的成粒和SiO 2颗粒的形成（9），通过在含卤素的气氛中加热来干燥和清洁SiO 2颗粒（9），并且SiO 2的玻璃化颗粒（9）在含有至少30体积％的氦和/或氢气的处理气体下。这个过程是耗时且昂贵的。为了提供从多孔SiO 2颗粒（9）开始的方法，可以成本有效地生产适合于熔化石英玻璃的无气泡组分的致密合成石英玻璃颗粒，本发明提出了清洁和玻璃化的二氧化硅颗粒（9）的后处理和玻璃化的石英玻璃颗粒的后处理在每种情况下在旋转窑（1）的旋转管（6）中进行，所述旋转管围绕中心轴线（7）旋转，其中旋转管（6）在玻璃化期间包括由陶瓷材料制成的内壁，并且其中所述玻璃化石英玻璃颗粒在至少10分钟的处理期间在包含小于在300℃或更高的处理温度下，20％的氦气或氢气。

20. 发明申请

US20160200620A1 METHOD FOR PRODUCING IRON-DOPED SILICA GLASS 有权
标题翻译：生产二氧化硅玻璃的方法
公开(公告)号：US20160200620A1
公开(公告)日：2016-07-14
申请号：US14916608
申请日：2014-09-11
申请人： HERAEUS QUARZGLAS GMBH & CO. KG
发明人： Stefan OCHS
IPC分类号： C03B19/06 , C03C3/06 , C03B25/02
CPC分类号： C03B19/06 , C03B25/02 , C03B37/01413 , C03B37/01446 , C03B2201/075 , C03B2201/40 , C03C3/06 , C03C2203/00
摘要： A method for producing a blank of iron-doped silica glass with high silicic acid content for use as heat protection glass is provided. The method involves: (a) producing an iron-doped SiO2 soot body which contains iron in a first oxidation state Fe3+ by flame hydrolysis of a silicon-containing and an iron-containing starting substance, (b) drying the soot body to obtain a mean hydroxyl group content of less than 10 ppm by weight, and (c) vitrifying the soot body under a reducing atmosphere that is suitable for at least partially reducing the iron from the first oxidation state Fe3+ to a second, lower oxidation state Fe2+. A blank is obtained having an iron content between 0.1 and 1% by weight which exhibits an internal transmission of at most 40% in the infrared wavelength range and an internal transmission of at least 85% in the visible spectral range.
摘要翻译：本发明提供一种用于制造具有高硅酸含量的掺铁石英玻璃的坯料作为保温玻璃的方法。该方法包括：（a）通过含硅和含铁起始物质的火焰水解生产含有第一氧化态Fe 3+的铁的掺铁SiO 2烟灰体，（b）干燥烟灰体以获得平均羟基含量小于10重量ppm，和（c）在适于将铁从第一氧化态Fe 3+至少部分还原为第二次氧化态Fe2 +的还原气氛下使烟灰体玻璃化。获得的铁含量为0.1至1重量％的空白，其在红外波长范围内具有至多40％的内部透光率，在可见光谱范围内内透光率至少为85％。

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