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62 条记录 (耗时 0.021 秒)

    REDUCED METHYL BROMIDE PROCESS FOR MAKING TETRABROMOBISPHENOL-A
    41.
    发明公开
    REDUCED METHYL BROMIDE PROCESS FOR MAKING TETRABROMOBISPHENOL-A 失效
    VERFAHREN ZUR HERSTELLUNG VON四溴双酚A-MIT METHYLBROMID

    公开(公告)号：EP0781263A4

    公开(公告)日：1998-07-08

    申请号：EP95930919

    申请日：1995-08-22

    申请人： GREAT LAKES CHEMICAL CORP

    发明人： SANDERS DAVID C ,  MACK ARTHUR G ,  TIMBERLAKE LARRY D

    IPC分类号： C07C37/62 ,  C07C39/16 ,  C07C39/367

    CPC分类号： C07C37/62 ,  C07C39/367

    摘要： A reduced methyl bromide process for making tetrabromobisphenol-A in methanol, including: dissolving bisphenol-A in a methanol solvent to form a bisphenol-A methanol solution, adding bromide to the bisphenol-A methanol solution to brominate bisphenol-A and form tetrabromobisphenol-A and hydrogen bromide, exposing the bisphenol-A methanol solution to an amount of a hydrogen peroxide agent to reduce the amount of methyl bromide co-product resulting from the bromination of bisphenol-A in methanol by reducing the amount of hydrogen bromide co-product available to react with the methanol, and collecting the resulting tetrabromobisphenol-A product thus formed after the bromination is substantially complete.

    摘要翻译： 一种用于在甲醇中制备四溴双酚A的甲基溴化方法，包括：将双酚A溶解在甲醇溶剂中以形成双酚A甲醇溶液，向双酚A甲醇溶液中加入溴以溴化双酚A并形成四溴双酚A， 溴化氢，将双酚A甲醇溶液暴露于一定量的过氧化氢试剂，以减少由甲醇中双酚A溴化而产生的甲基溴共同产物的量，通过减少可用的溴化氢副产物的量 与甲醇反应，并在溴化后收集由此形成的四溴双酚A产物基本上完成。

    INORGANIC PERBROMIDE COMPOSITIONS AND METHODS OF USE THEREOF.
    45.
    发明公开
    INORGANIC PERBROMIDE COMPOSITIONS AND METHODS OF USE THEREOF. 失效
    ANORGANISCHE PERBROMIDZUSAMMENSETZUNG UND VERFAHREN ZU DEREN VERWENDUNG。

    公开(公告)号：EP0652979A4

    公开(公告)日：1995-09-27

    申请号：EP93918586

    申请日：1993-07-28

    申请人： GREAT LAKES CHEMICAL CORP

    发明人： DADGAR AHMAD ,  HOWARTH JONATHAN N ,  SERGENT RODNEY H ,  FAVSTRITSKY NICOLAI A ,  MCKEOWN JULIE A ,  BORDEN DENNIS W ,  SANDERS BRENT M ,  LIKENS L JANE

    IPC分类号： C22B3/10 ,  C22B11/00

    CPC分类号： C22B11/04 ,  C22B3/10 ,  C22B3/24 ,  C22B3/42 ,  Y02P10/234

    摘要： A process for leaching platinum and palladium wherein an aqueous leaching solution containing bromine and bromide ion contacts a precious metal source to produce an aqueous leachate. A precursor composition for producing an aqueous leaching solution for leaching platinum and palladium. A process for electrogenerating bromine and a process for leaching platinum and palladium wherein bromine is electrogenerated and contacts a precious metal source to produce an aqueous leachate. A process for leaching gold, silver, platinum and palladium wherein bromine is electrogenerated from a solution containing chloride ions and bromide ions.

    摘要翻译： 一种浸出铂和钯的方法，其中含有溴和溴离子的含水浸出溶液与贵金属源接触以产生含水浸出液。 用于生产用于浸出铂和钯的含水浸出溶液的前体组合物。 一种电解溴的方法和一种浸出铂和钯的方法，其中溴被电解并与贵金属源接触以产生含水浸出液。 一种浸出金，银，铂和钯的方法，其中溴从含有氯离子和溴离子的溶液中电解生成。

    METHOD OF DECOMPOSING GASEOUS HALOCARBONS.
    46.
    发明公开
    METHOD OF DECOMPOSING GASEOUS HALOCARBONS. 失效
    方法ZUR ZERESZZZUNG VONGASFÖRMIGENHALOGENKOHLENSTOFFVERBINDUNGEN。

    公开(公告)号：EP0659102A4

    公开(公告)日：1995-08-16

    申请号：EP93921387

    申请日：1993-09-07

    申请人： GREAT LAKES CHEMICAL CORP

    发明人： IIKUBO YUICHI ,  QIAN JOHN C

    IPC分类号： B01D53/68 ,  B01D53/70 ,  B01D53/14 ,  B01D53/34

    CPC分类号： B01D53/70 ,  Y02C20/30

    摘要： A method of completely decomposing gasesous halocarbons at temperatures of between about 500 C and about 700 C, preferably about 600 C. The gaseous halocarbons may initially pass through a vaporizer tube (14), before entering the reaction tube (13). The reaction and vaporizer tubes are heated by ceramic fiber heaters (15 and 16). Temperatures were monitored and controlled by a thermocouple inserted into the heaters. Gas flows are monitored with two flowmeters. This sytem for decomposing gaseous halocarbons has the advantage of mixing the halocarbon gas with oxygen and maintaining the temperature at 600 C for a length of time sufficient to eliminate all halocarbons from the gas.

    摘要翻译： 一种在大约500℃至大约700℃，优选大约600℃的温度下完全分解气态卤化碳的方法。在进入反应管（13）之前，气态卤化碳最初可以通过蒸发管（14）。 反应和蒸发器管由陶瓷纤维加热器（15和16）加热。 通过插入加热器的热电偶监测和控制温度。 用两个流量计监测气体流量。 这种分解气态卤化碳的系统具有将卤化碳气体与氧气混合并将温度保持在600℃足够长的时间以从气体中消除所有卤化碳的优点。

    PRODUCT STREAM PROCESSING METHODS, PRODUCT STREAM PROCESSING SYSTEMS, AND MIXTURES
    48.
    发明公开
    PRODUCT STREAM PROCESSING METHODS, PRODUCT STREAM PROCESSING SYSTEMS, AND MIXTURES 审中-公开
    产品的当前应用方法，产物流处理系统和MIXES

    公开(公告)号：EP1725511A4

    公开(公告)日：2007-11-14

    申请号：EP04704095

    申请日：2004-01-21

    申请人： GREAT LAKES CHEMICAL CORP

    发明人： SHARMA VIMAL ,  LOWERY WILLIAM R ,  MCKAY SHAUN E ,  EVERS BENNY D

    IPC分类号： C07C21/18 ,  C07C17/20 ,  C07C17/38 ,  C07C17/383 ,  C07C19/08

    CPC分类号： C07C19/08 ,  C07C17/206 ,  C07C17/38 ,  C07C17/383

    摘要： Product stream processing methods, systems, and mixtures are provided. A reaction product stream can have a first amount of a halogen exchange by product and an azeotropic composition of a halogen exchange reaction product and a halogen donating reactant. A majority of the halogen exchange by-product from the reaction product stream can be removed to produce a mixture. The mixture can include the halogen exchange reaction product, the halogen donating reactant, and a second amount of the halogen exchange by-product that is less than the first amount of the halogen donating reactant. A majority of the halogen exchange reaction product containing less than the azeotropic amount of the halogen donating reactant can be removed from the mixture. Exemplary halogen exchange reaction product, halogen donating reactant and halogen exchange by-product are CH2F2, HF, and HCI respectively.

    STABILIZED ALKYL BROMIDE SOLVENTS
    49.
    发明公开
    STABILIZED ALKYL BROMIDE SOLVENTS 失效
    STABILISIERTE ALKYLBROMIDHALTIGELÖSUNGSMITTEL

    公开(公告)号：EP0996704A4

    公开(公告)日：2002-01-02

    申请号：EP98934375

    申请日：1998-07-09

    申请人： GREAT LAKES CHEMICAL CORP

    发明人： DEGROOT RICHARD J

    IPC分类号： C07C17/42 ,  C07C19/075 ,  C11D7/26 ,  C11D7/28 ,  C11D7/30 ,  C11D7/32 ,  C11D7/50 ,  C11D11/00 ,  C23G5/028

    CPC分类号： C11D7/261 ,  C07C17/42 ,  C07C19/075 ,  C11D7/263 ,  C11D7/264 ,  C11D7/266 ,  C11D7/28 ,  C11D7/30 ,  C11D7/3227 ,  C11D7/5018 ,  C11D11/0029 ,  C23G5/028 ,  C23G5/02861

    摘要： This invention provides a stabilized alkyl bromide based solvent system that is useful for cleaning and degreasing a wide variety of metal objects. The solvent is stabilized with a stabilizer system that includes a dialkyl carbonate such as dimethyl carbonate and optionally other stabilizers and/or acid scavengers to inhibit the metal induced decomposition of the alkyl bromide based solvent. The stabilized solvent is applied to metal articles by any known or conventional means to solvate and entrain greases, oils and other undesirable matter from the article's surface.

    摘要翻译： 本发明提供了一种稳定的烷基溴基溶剂体系，其可用于清洗和脱脂各种各样的金属物体。 溶剂用包含碳酸二烷基酯如碳酸二甲酯和任选的其它稳定剂和/或酸清除剂的稳定剂体系稳定以抑制烷基溴基溶剂的金属诱导分解。 通过任何已知的或常规的手段将稳定的溶剂施加到金属制品上，以从制品表面溶解并夹带油脂，油和其它不希望的物质。