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1. 发明授权

US5876685A Separation and purification of fluoride from industrial wastes 失效
标题翻译：从工业废物中分离和纯化氟化物
公开(公告)号：US5876685A
公开(公告)日：1999-03-02
申请号：US707907
申请日：1996-09-11
申请人： Gerald A. Krulik , John A. Adams , Dieter Dornisch , David W. Persichini , Christopher S. Blatt
发明人： Gerald A. Krulik , John A. Adams , Dieter Dornisch , David W. Persichini , Christopher S. Blatt
IPC分类号： B01D15/04 , C01B7/19 , C02F1/04 , C02F1/42 , C02F1/58 , C02F1/60 , C02F1/66 , C02F9/00
CPC分类号： C02F9/00 , C01B7/191 , C01B7/196 , C02F1/583 , C02F1/60 , C02F1/04 , C02F1/42 , C02F1/66 , C02F2101/14 , C02F2103/346
摘要： A method for the removal and purification of substantially all of the fluoride ions contained in a solution containing greater than 10 parts per million (ppm) fluoride ion, a mixture of other anions, silicon in the form of a fluorosilicic acid, silicic acid, silicates, or silicon tetrafluoride, and optionally also containing complex metal fluorides, to produce an ultrapure hydrofluoric acid, comprising the steps of (a) adjusting the pH of the solution to an alkaline pH to hydrolyze the fluorosilicic acid and any complex metal fluorides; (b) removing the fluoride ions and other anions from the solution by passing the solution through an ion exchange resin, where the ion exchange resin is adapted to adsorb substantially all of the fluoride passed over the ion exchange resin; (c) displacing the fluoride ions and other anions bound to the ion exchange resin, thereby forming a mixture of anions in an effluent emanating from resin; (d) optionally concentrating the effluent at a high pH and then lowering the pH; and (e) distilling the mixture of anions in the effluent from a sulfuric acid solution to generate ultrapure hydrofluoric acid. An apparatus useful for practicing the method is also disclosed.
摘要翻译：除去和纯化含有大于10ppm（ppm）氟离子，其它阴离子的混合物，氟硅酸形式的硅，硅酸，硅酸盐的溶液中所含的基本上所有的氟离子的方法，或四氟化硅，以及任选地还含有复合金属氟化物，以制备超纯氢氟酸，包括以下步骤：（a）将溶液的pH调节至碱性pH以水解氟硅酸和任何复合金属氟化物; （b）通过使溶液通过离子交换树脂从溶液中除去氟离子和其它阴离子，其中离子交换树脂适于吸附通过离子交换树脂的基本上所有的氟化物; （c）置换与离子交换树脂结合的氟离子和其它阴离子，从而在由树脂发出的流出物中形成阴离子的混合物; （d）任选地在高pH下浓缩流出物，然后降低pH值; 和（e）将来自硫酸溶液的流出物中的阴离子混合物蒸馏以产生超纯氢氟酸。还公开了一种用于实施该方法的装置。

2. 发明授权

US06435224B2 Automatic refill system for ultra pure or contamination sensitive chemicals 失效
公开(公告)号：US06435224B2
公开(公告)日：2002-08-20
申请号：US09921452
申请日：2001-08-02
申请人： Christopher S. Blatt , Richard H. Pearce , Graham Williams , Edward H. Wentworth, III
发明人： Christopher S. Blatt , Richard H. Pearce , Graham Williams , Edward H. Wentworth, III
IPC分类号： F17C1300
CPC分类号： F17C5/00 , F17C5/005 , F17C13/025 , F17C13/026 , F17C13/028 , F17C13/045 , F17C2205/0146 , F17C2205/0326 , F17C2205/0335 , F17C2205/0364 , F17C2221/014 , F17C2221/05 , F17C2223/0123 , F17C2223/013 , F17C2225/0123 , F17C2227/0114 , F17C2227/04 , F17C2227/044 , F17C2227/045 , F17C2250/032 , F17C2250/0413 , F17C2250/0421 , F17C2250/0426 , F17C2250/043 , F17C2250/0439 , F17C2250/0473 , F17C2250/0636 , F17C2250/072 , F17C2270/0518 , G01F1/667 , G01F15/18 , G01F23/2921 , G01F23/2927 , Y10T137/3127
摘要： A highly reliable and safe, modular automatic refill (bulk delivery) system for ultra-high purity pyrophoric metalorganic chemicals employing: a manifold that insures contamination-free operation; a liquid-level detection system with fail-safe redundancy; and an evacuation system which leaves the system's manifold and transfer lines relatively free of chemical fire hazards; leaves them free of oxygen contamination; and leaves the composition of the system's carrier gas unaffected, between refills.

3. 发明授权

US06604555B2 Automatic refill system for ultra pure or contamination sensitive chemicals 失效
公开(公告)号：US06604555B2
公开(公告)日：2003-08-12
申请号：US10211940
申请日：2002-08-02
申请人： Christopher S. Blatt , Richard H. Pearce , Graham Williams , Edward H. Wentworth, III
发明人： Christopher S. Blatt , Richard H. Pearce , Graham Williams , Edward H. Wentworth, III
IPC分类号： F17C1300
CPC分类号： F17C5/005 , F17C5/00 , F17C13/025 , F17C13/026 , F17C13/028 , F17C13/045 , F17C2205/0146 , F17C2205/0326 , F17C2205/0335 , F17C2205/0364 , F17C2221/014 , F17C2221/05 , F17C2223/0123 , F17C2223/013 , F17C2225/0123 , F17C2227/0114 , F17C2227/04 , F17C2227/044 , F17C2227/045 , F17C2250/032 , F17C2250/0413 , F17C2250/0421 , F17C2250/0426 , F17C2250/043 , F17C2250/0439 , F17C2250/0473 , F17C2250/0636 , F17C2250/072 , F17C2270/0518 , G01F1/667 , G01F15/18 , G01F23/2921 , G01F23/2927 , Y10T137/3127
摘要： A highly reliable and safe, modular automatic refill (bulk delivery) system for ultra-high purity pyrophoric metalorganic chemicals employing: a manifold that insures contamination-free operation; a liquid-level detection system with fail-safe redundancy; and an evacuation system which leaves the system's manifold and transfer lines relatively free of chemical fire hazards; leaves them free of oxygen contamination; and leaves the composition of the system's carrier gas unaffected, between refills.

4. 发明授权

US5500095A High efficiency chemical processing 失效
标题翻译：高效化学加工
公开(公告)号：US5500095A
公开(公告)日：1996-03-19
申请号：US224956
申请日：1994-04-08
申请人： Robert T. Shinagawa , Susan M. Jordan , Christopher S. Blatt
发明人： Robert T. Shinagawa , Susan M. Jordan , Christopher S. Blatt
IPC分类号： B01D3/32 , B01D3/42 , C01B17/88 , C01B17/90
CPC分类号： B01D3/322 , B01D3/4205 , B01D3/425 , C01B17/88 , Y10S159/19 , Y10S203/13
摘要： A high efficiency batch sulfuric acid reprocessor system that is capable of producing high purity acid through distillation. Methods of use are also provided. The distillation is monitored and controlled in accordance with temperatures of the system, in particular, the temperature of the column and the temperature of the vapor in a condensing chamber. A stream splitter enables the invention to selectively collect high purity product as well as remove waste or recycle condensate as reflux.
摘要翻译：一种能够通过蒸馏生产高纯度酸的高效率批量硫酸再处理系统。还提供了使用方法。根据系统的温度，特别是塔的温度和冷凝室中的蒸汽的温度来监测和控制蒸馏。流分离器使得本发明能够选择性地收集高纯度产物以及除去废物或再循环冷凝物作为回流。

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