公开(公告)号：US06200545B1

公开(公告)日：2001-03-13

申请号：US09235876

申请日：1999-01-22

申请人： David Bruce Dreisinger

发明人： David Bruce Dreisinger

IPC分类号： C02F126

CPC分类号： C22B11/08 ,  C02F1/26 ,  C22B3/0043 ,  C22B3/0063 ,  Y02P10/234 ,  Y10S210/903 ,  Y10S210/904

摘要： The invention provides a process for recovering hydrogen cyanide from an aqueous solution by extracting the hydrogen cyanide into an organic solvent phase. The organic solvent may comprise a neutral organophosphorous compounds, such as compounds selected from the group consisting of alkyl or aryl substituted phosphates, phosphonates and phosphine oxides. In alternative embodiments the organophosphorous compound is tri-butyl phosphate, di-butyl-butyl-phosphonate or tri-alkyl phosphine oxides. The organic solvent may be diluted in an organic diluent, such as an aliphatic or kerosene-type diluent. Alternative dilutions may be used, such as 75%, 50% or 25%. In some embodiments, the pH of the aqueous solution containing dissolved cyanide may be adjusted to between 2 and 8, or between 3 and 7, or between 4 and 6. The organic solvent may be contacted following extraction with a basic aqueous solution to strip cyanide from the organic solvent into a basic aqueous cyanide strip solution. The stripped organic solvent may then be returned to the loading process, to extract HCN from fresh aqueous solution.

摘要翻译： 本发明提供了通过将氰化氢萃取到有机溶剂相中从水溶液中回收氰化氢的方法。 有机溶剂可以包含中性有机亚磷化合物，例如选自烷基或芳基取代的磷酸酯，膦酸酯和氧化膦的化合物。 在替代实施方案中，有机亚磷化合物是磷酸三丁酯，二丁基 - 丁基膦酸酯或三烷基氧化膦。 有机溶剂可以在有机稀释剂中稀释，例如脂族或煤油型稀释剂。 可以使用替代稀释剂，例如75％，50％或25％。 在一些实施方案中，含有溶解氰化物的水溶液的pH可以调节至2至8，或3至7之间，或4至6之间。有机溶剂可在萃取后与碱性水溶液接触以剥离氰化物 从有机溶剂中加入碱性氰化氰水溶液。 然后将汽提的有机溶剂返回加载过程，从新鲜水溶液中提取HCN。

公开(公告)号：US06767465B1

公开(公告)日：2004-07-27

申请号：US10019667

申请日：2002-01-02

申请人： Jaewon Choung ,  Jozef Szymanski ,  Zhenghe Xu

发明人： Jaewon Choung ,  Jozef Szymanski ,  Zhenghe Xu

IPC分类号： C02F126

CPC分类号： B03B9/005 ,  B03D3/02 ,  B03D3/06 ,  C10L1/322

摘要： A process for recovering fine coals and clarifying water for recycling features with three distinct mechanisms: hydrophobic extraction, electrolyte coagulation, and macromolecular flocculation, which if desired may be integrated into a single stage. The hydrophobic extraction is accomplished using oil to form a coal-in-oil mixture. The process water is clarified using a flocculants, more preferably a combination of coagulant and anionic flocculants. With a well defined reagent addition scheme, this process allows a combustible recovery greater than 88% at an ash content less than 11%, while producing a clean water containing less than 20 ppm suspended solids from a tailing's stream. The coal-in-oil mixture may be used as a fuel for example in coal-firing boilers and power generators.

摘要翻译： 一种用于回收细煤和澄清水以回收特征的方法，其具有三种不同的机理：疏水萃取，电解质凝结和大分子絮凝，如果需要，其可以整合到单一阶段。 使用油完成疏水萃取以形成油包油混合物。 使用絮凝剂，更优选凝结剂和阴离子絮凝剂的组合来澄清工艺用水。 通过明确的试剂添加方案，该方法允许在灰分含量低于11％时可燃回收率大于88％，同时从尾矿流中产生含有少于20ppm悬浮固体的干净水。 油包油混合物可以用作例如燃煤锅炉和发电机中的燃料。

公开(公告)号：US06217767B1

公开(公告)日：2001-04-17

申请号：US08147090

申请日：1993-11-03

申请人： Remly Paul Clark

发明人： Remly Paul Clark

IPC分类号： C02F126

CPC分类号： C02F1/20 ,  C02F3/02 ,  C02F2101/32 ,  C02F2103/06 ,  Y02W10/15

摘要： A process for the removal of hydrocarbon contaminates from groundwater and/or wastewater in ground wells, treatment trenches or above-ground tanks which utilizes differential pressure between the area above the groundwater and/or wastewater and the purging gas introduced therein to the upward flow of bubbles of the purging gas through the groundwater and/or wastewater requiring stripping or volatilization to remove the hydrocarbon contaminates therefrom.

摘要翻译： 一种从地下水和/或地下水井，地下水处理槽或地下储罐中除去碳氢化合物污染物的过程，其利用地下水和/或废水之间的区域与引入其中的净化气体之间的压差， 吹扫气体通过地下水和/或需要汽提或挥发以除去烃污染物的废水的气泡。

公开(公告)号：US06511603B1

公开(公告)日：2003-01-28

申请号：US09695126

申请日：2000-10-24

申请人： Mark Dietz ,  E. Philip Horwitz

发明人： Mark Dietz ,  E. Philip Horwitz

IPC分类号： C02F126

CPC分类号： B01J45/00 ,  C02F1/26 ,  C02F2101/006 ,  C22B3/002 ,  C22B26/20 ,  Y02P10/234 ,  Y10S423/14 ,  Y10T428/2991 ,  Y10T428/2993 ,  Y10T428/2998

摘要： An extractant medium for extracting alkaline earth cations from an aqueous acidic sample solution is described as are a method and apparatus for using the same. The separation medium is free of diluent, free-flowing and particulate, and comprises a Crown ether that is a 4,4′(5′)[C4-C8-alkylcyclohexano]18-Crown-6 dispersed on an inert substrate material.

摘要翻译： 作为使用该酸性溶液的方法和装置，还描述了从酸性样品溶液水溶液中提取碱土金属阳离子的萃取介质。 分离介质不含稀释剂，自由流动和颗粒，并且包含分散在惰性基材上的4,4'（5'）[C4-C8-烷基环己烷] 18-冠-6的冠醚。

公开(公告)号：US06402952B2

公开(公告)日：2002-06-11

申请号：US09823039

申请日：2001-03-29

申请人： Ryan D. McMurtrey ,  Daniel M. Ginosar ,  Kenneth S. Moor ,  G. Michael Shook ,  John M. Moses ,  Donna L. Barker

发明人： Ryan D. McMurtrey ,  Daniel M. Ginosar ,  Kenneth S. Moor ,  G. Michael Shook ,  John M. Moses ,  Donna L. Barker

IPC分类号： C02F126

CPC分类号： C02F1/26 ,  B01D11/0403 ,  B01D11/0407 ,  B01D11/0426 ,  B01D11/0488 ,  B09C1/02 ,  B09C2101/00 ,  C02F2101/322 ,  C02F2103/06

摘要： An apparatus and method for extraction of chemicals from an aquifer remediation aqueous effluent are provided. The extraction method utilizes a critical fluid for separation and recovery of chemicals employed in remediating aquifers contaminated with hazardous organic substances, and is particularly suited for separation and recovery of organic contaminants and process chemicals used in surfactant-based remediation technologies. The extraction method separates and recovers high-value chemicals from the remediation effluent and minimizes the volume of generated hazardous waste. The recovered chemicals can be recycled to the remediation process or stored for later use.

摘要翻译： 提供了一种从含水层修复含水废液中提取化学物质的装置和方法。 提取方法利用临界流体分离和回收用于修复被有害有机物质污染的含水层的化学品，特别适用于分离和回收基于表面活性剂的修复技术中使用的有机污染物和加工化学品。 提取方法从修复废水中分离和回收高价值化学品，并最大限度地减少产生的危险废物的数量。 回收的化学品可以回收到修复过程中或存储以供以后使用。

公开(公告)号：US06787038B2

公开(公告)日：2004-09-07

申请号：US10067273

申请日：2002-02-05

申请人： Mark Brusseau ,  Thomas Boving ,  William Blanford ,  Eric Klingel ,  John McCray ,  Xiaojiang Wang

发明人： Mark Brusseau ,  Thomas Boving ,  William Blanford ,  Eric Klingel ,  John McCray ,  Xiaojiang Wang

IPC分类号： C02F126

CPC分类号： C02F1/26 ,  B09C1/002 ,  B09C1/02 ,  C02F1/20 ,  C02F2101/003 ,  C02F2101/006 ,  C02F2101/20 ,  C02F2101/306 ,  C02F2101/32 ,  C02F2101/36

摘要： Pollutants are extracted from sub-surface water using an aqueous solution of cyclodextrin and a vertical circulating well. Complexes of the pollutant and cyclodextrin are recovered from the bottom of the well. When the pollutant is volatile, the complexes are separated into pollutant and cyclodextrin by air stripping.

摘要翻译： 使用环糊精和垂直循环井的水溶液从地下水中提取污染物。 污染物和环糊精的复合物从井的底部回收。 当污染物挥发时，通过气提将复合物分离成污染物和环糊精。

公开(公告)号：US06398960B1

公开(公告)日：2002-06-04

申请号：US09702533

申请日：2000-10-31

申请人： Robert C. Borden ,  Michael D. Lee

发明人： Robert C. Borden ,  Michael D. Lee

IPC分类号： C02F126

CPC分类号： B09C1/10 ,  B09C1/00 ,  B09C1/002 ,  C02F2103/04 ,  C02F2103/36 ,  C02F2305/06

摘要： A method for remediating aquifers and groundwater contaminated, for example, by toxic halogenated organic compounds, certain inorganic compounds, and oxidized heavy metals and radionuclides, using the introduction of an innocuous oil, preferably an edible, food grade oil such as soybean oil, formulated into a microemulsion preferably by mixing with a natural food-grade emulsifier (such as lecithin) and water.

摘要翻译： 一种补救含水层和地下水的方法，例如通过有毒的卤化有机化合物，某些无机化合物和氧化的重金属和放射性核素的污染，使用无毒油，优选可食用的食品级油如大豆油 优选通过与天然食品级乳化剂（例如卵磷脂）和水混合而成为微乳液。