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1. 发明授权

US4508538A Recovery of fumed SiO.sub.2 失效
标题翻译：回收热解SiO2
公开(公告)号：US4508538A
公开(公告)日：1985-04-02
申请号：US212762
申请日：1980-12-04
申请人： Joel F. M. Leathers , Donald W. Calvin
发明人： Joel F. M. Leathers , Donald W. Calvin
IPC分类号： C01B33/18 , C01B33/12
CPC分类号： C01B33/184 , C01P2006/11 , C01P2006/12 , C01P2006/90
摘要： A method of recovering fumed hydrophobic SiO.sub.2, produced by the flame hydrolysis of a ternary azeotrope of H.sub.2 SiF.sub.6, HF, and H.sub.2 O, is disclosed. The method involves passing the fumed hydrophobic silica, as it leaves the combustion chamber, through a nonclassifying agglomerator at a residence (travel) time of from about 0.5 to several seconds, preferably about 1.0 to about 5.0 seconds, then separating the fumed silica from the product stream in a cyclone separator or other means for collecting dispersoids.
摘要翻译：公开了通过H 2 SiF 6，HF和H 2 O的三元共沸物的火焰水解产生的热解疏水性SiO 2的回收方法。该方法包括当其离开燃烧室时通过非分类凝聚器在约0.5至几秒，优选约1.0至约5.0秒的停留（行进）时间内使热解的疏水性二氧化硅通过，然后将热解法二氧化硅从旋风分离器中的产物流或用于收集分散质的其它方式。

2. 发明授权

US4059680A Method of preparing fumed SiO.sub.2 失效
标题翻译：制备热解法SiO（HD 2）的方法
公开(公告)号：US4059680A
公开(公告)日：1977-11-22
申请号：US724683
申请日：1976-09-20
申请人： Joel F. M. Leathers , Donald W. Calvin
发明人： Joel F. M. Leathers , Donald W. Calvin
IPC分类号： C01B7/19 , C01B33/10 , C01B33/18 , C01B33/12 , C01B7/22
CPC分类号： C01B33/183 , C01B33/103 , C01B33/184 , C01B7/193 , C01P2004/62
摘要： Fluorosilicic acid solutions, which normally undergo decomposition when distilled, thereby creating unwanted forms of SiO.sub.2, are rendered stable during distillation by providing in the fluorosilicic acid solution an amount of HF which is at least about 10 parts of HF per 36 parts of H.sub.2 SiF.sub.6 and an amount of H.sub.2 O which is at least about 54 parts of H.sub.2 O per 36 parts of H.sub.2 SiF.sub.6. The mixture is distilled to remove any excess H.sub.2 O and excess HF that is present, without encountering formation of SiO.sub.2, until an azeotropic solution containing about 36% H.sub.2 SiF.sub.6, about 10% HF and about 54% H.sub.2 O is reached. The ternary azeotrope, being of constant quality and concentration, is more suitable for use in various processes, such as processes for making fumed SiO.sub.2, than H.sub.2 SiF.sub.6 solutions which are not of constant quality or concentration.
摘要翻译：通常在蒸馏过程中经历分解，从而产生不想要的形式的SiO 2的氟硅酸溶液在蒸馏期间通过在氟硅酸溶液中提供一定量的HF，每36个H 2 SiF 6和至少约10份HF，每36份H 2 SiF 6至少约54份H 2 O的量。将混合物蒸馏以除去存在的任何过量的H 2 O和过量的HF，而不会形成SiO 2，直到达到含有约36％H 2 SiF 6，约10％HF和约54％H 2 O的共沸溶液。具有恒定质量和浓度的三元共沸物比不具有恒定质量或浓度的H 2 SiF 6溶液更适合用于各种工艺中，例如制造热解法SiO 2的方法。

3. 发明授权

US4008130A Method for distilling a ternary azeotrope of fluorosilicic acid, hydrogen fluoride and water 失效
标题翻译：用于蒸馏氟硅酸，氟化氢和水的三元共沸物的方法
公开(公告)号：US4008130A
公开(公告)日：1977-02-15
申请号：US660294
申请日：1976-02-23
申请人： Joel F. M. Leathers , Donald W. Calvin
发明人： Joel F. M. Leathers , Donald W. Calvin
IPC分类号： B01D3/00 , C01B7/19 , C01B33/10 , B01D3/36
CPC分类号： C01B33/103 , C01B7/191 , C01P2004/62
摘要： Fluorosilicic acid solutions, which normally undergo decomposition when distilled, thereby creating unwanted forms of SiO.sub.2, are rendered stable during distillation by providing in the fluorosilicic acid solution an amount of HF which is at least about 10 parts of HF per 36 parts of H.sub.2 SiF.sub.6 and an amount of H.sub.2 O which is at least about 54 parts of H.sub.2 O per 36 parts of H.sub.2 SiF.sub.6. The mixture is distilled to remove any excess H.sub.2 O and excess HF that is present, without encountering formation of SiO.sub.2, until an azeotropic solution containing about 36% H.sub.2 SiF.sub.6, about 10% HF and about 54% H.sub.2 O is reached. The ternary azeotrope, being of constant quality and concentration, is more suitable for use in various processes, such as processes for making fumed SiO.sub.2, than H.sub.2 SiF.sub.6 solutions which are not of constant quality or concentration.
摘要翻译：通常在蒸馏过程中经历分解，从而产生不想要的形式的SiO 2的氟硅酸溶液在蒸馏期间通过在氟硅酸溶液中提供一定量的HF，每36个H 2 SiF 6和至少约10份HF，每36份H 2 SiF 6至少约54份H 2 O的量。将混合物蒸馏以除去存在的任何过量的H 2 O和过量的HF，而不会形成SiO 2，直到达到含有约36％H 2 SiF 6，约10％HF和约54％H 2 O的共沸溶液。具有恒定质量和浓度的三元共沸物比不具有恒定质量或浓度的H 2 SiF 6溶液更适合用于各种工艺中，例如制造热解法SiO 2的方法。

4. 发明授权

US4625440A Tentering frame for sheet-like members 失效
标题翻译：用于片状构件的托盘框架
公开(公告)号：US4625440A
公开(公告)日：1986-12-02
申请号：US759769
申请日：1985-07-29
申请人： Hiep D. Dang , Roy L. Hicks , Joel F. M. Leathers
发明人： Hiep D. Dang , Roy L. Hicks , Joel F. M. Leathers
IPC分类号： C25B9/20 , C25B13/00 , D06C3/08
CPC分类号： C25B9/206 , C25B13/00
摘要： A tentering apparatus for tensioning a sheet-like member, for example, a membrane used in an electrolyzer. The tentering apparatus includes four clamping assemblies arranged in a picture frame shape configuration with four corner members and a connector member for connecting the clamping assemblies to the corner members and adapted for tensioning the sheet-like member.
摘要翻译：用于张紧片状构件的拉幅装置，例如用于电解槽中的膜。该拉幅装置包括四个夹紧组件，其以具有四个角部件的相框形状配置和用于将夹持组件连接到角部件并适于张紧片状部件的连接器部件布置。

5. 发明授权

US4660308A Tentering frame for sheet-like members 失效
标题翻译：用于片状构件的托盘框架
公开(公告)号：US4660308A
公开(公告)日：1987-04-28
申请号：US759768
申请日：1985-07-29
申请人： Hiep D. Dang , Roy L. Hicks , Joel F. M. Leathers
发明人： Hiep D. Dang , Roy L. Hicks , Joel F. M. Leathers
IPC分类号： D06C3/08
CPC分类号： D06C3/08
摘要： A tentering apparatus for tensioning a sheet-like member, for example, a membrane used in an electrolyzer. The apparatus includes four clamping assemblies arranged in a frame-shape configuration within an outer frame member, and a fastener, such as a threaded bolt and wing unit, for fastening the clamping assemblies to the outer frame members and for tensioning the sheet-like member.
摘要翻译：用于张紧片状构件的拉幅装置，例如用于电解槽中的膜。该装置包括四个夹紧组件，该夹紧组件以外框架构件内的框架形状布置，以及紧固件，例如螺栓和翼单元，用于将夹紧组件紧固到外框架构件上并用于张紧片状构件。

6. 发明授权

US4578885A Tentering frame for sheet-like members 失效
标题翻译：用于片状构件的托盘框架
公开(公告)号：US4578885A
公开(公告)日：1986-04-01
申请号：US759770
申请日：1985-07-29
申请人： Hiep D. Dang , Roy L. Hicks , Joel F. M. Leathers
发明人： Hiep D. Dang , Roy L. Hicks , Joel F. M. Leathers
IPC分类号： D06C3/08
CPC分类号： D06C3/08
摘要： A tentering apparatus for tensioning a sheet-like member, for example, a membrane used in an electrolyzer. The tentering apparatus includes four clamping assemblies arranged in a picture frame shape configuration adapted for clamping at least a portion of its periphery of a sheet-like member. One pair of clamping assemblies have studs at each end rotatably mounted at the ends of the second pair of clamping assemblies. A planar sheet-like member is tensioned by clamping the periphery of the sheet-like member and applying a pulling force generally outwardly and normal to the second pair of clamping assemblies and rotating the first pair of clamping assemblies to cause a pulling force generally normal to the first pair of clamping assemblies.
摘要翻译：用于张紧片状构件的拉幅装置，例如用于电解槽中的膜。拉幅装置包括四个夹紧组件，其布置成适于夹紧其片状构件的周边的至少一部分的相框形状构造。一对夹紧组件在每端具有可旋转地安装在第二对夹紧组件的端部处的螺柱。通过夹紧片状构件的周边并且施加大致向外并垂直于第二对夹紧组件的拉力并使第一对夹紧组件旋转以使拉力大致垂直于第一对夹紧组件。

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