METHOD FOR PRODUCING OF ULTRA-CLEAN AND HIGH-PURITY ELECTRONIC GRADE REAGENTS
    71.
    发明申请
    METHOD FOR PRODUCING OF ULTRA-CLEAN AND HIGH-PURITY ELECTRONIC GRADE REAGENTS 失效
    生产超清洁和高纯度电子级分试剂的方法

    公开(公告)号:US20110094872A1

    公开(公告)日:2011-04-28

    申请号:US12914716

    申请日:2010-10-28

    IPC分类号: B01D3/34

    摘要: A method for producing of ultra-clean and High-purity electronic grade reagents is disclosed. The industrial grade reagents are chemically pretreated and filtered, and the colature is rectified. Heating the steam during the rectification to overheated steam, and filtering the overheated steam used the microporous membrane to remove the solid particulates. Condensing the overheated steam and the secondarily filter to remove the dust in the product. Due to the adoption of the technical scheme, the ultra-clean and High-purity isopropanol produced is in conformity with standard SEMI-C12 and the hydrochloric acid to standard SEMI-C8. And the method is applicable for the large-scale continuous production.

    摘要翻译: 公开了一种生产超清洁和高纯度电子级试剂的方法。 将工业级试剂进行化学预处理和过滤,并且校正整齐。 在精馏过程中加热蒸汽以使过热蒸汽过滤,并过滤过热蒸汽,使用微孔膜除去固体颗粒物。 冷凝过热蒸汽,然后过滤,以除去产品中的灰尘。 由于采用了技术方案,所生产的超清洁和高纯度异丙醇符合标准SEMI-C12和盐酸标准SEMI-C8。 该方法适用于大规模连续生产。

    Method of Concentrating Hydrochloric Acid
    72.
    发明申请
    Method of Concentrating Hydrochloric Acid 失效
    浓盐酸方法

    公开(公告)号:US20100264372A1

    公开(公告)日:2010-10-21

    申请号:US12426308

    申请日:2009-04-20

    IPC分类号: C09K3/00 C01B7/01

    CPC分类号: C01B7/0706

    摘要: A method for producing concentrated HCl vapor from an aqueous solution of HCl, including: (a) introducing an aqueous feed liquor to an evaporation chamber containing a mother liquor, the feed liquor having an initial, super-azeotropic HCl concentration; (b) directly contacting a liquor of these liquors with a heat-laden heat transfer fluid, to transfer heat from the fluid; (c) utilizing the heat to evaporate HCl, within the chamber, to produce the concentrated HCl vapor and to produce the mother liquor, the mother liquor including an aqueous phase having a reduced concentration of HCl, with respect to the initial HCl concentration; (d) subjecting the mother liquor to a liquid-liquid separation to produce a liquid phase containing HCl, and another liquid phase containing the heat transfer fluid in a heat-depleted state, with respect to the heat transfer fluid in step (b); (e) heating the heat transfer fluid in the heat-depleted state, to regenerate the heat-laden heat transfer fluid, and (f) returning this heat transfer fluid to step (b).

    摘要翻译: 一种从HCl水溶液中生产浓HCl蒸气的方法,包括:(a)将含水原料液引入到含有母液的蒸发室中,该进料液体具有初始的超共沸HCl浓度; (b)将这些液体的液体与加热的传热流体直接接触,以从流体传递热量; (c)利用热量在室内蒸发HCl以产生浓缩的HCl蒸气并产生母液,该母液包含相对于初始HCl浓度具有降低的HCl浓度的水相; (d)相对于步骤(b)中的传热流体,使母液进行液液分离以产生含有HCl的液相和含有热耗尽状态的传热流体的另一液相; (e)加热处于耗热状态的传热流体,以再生载热的传热流体,和(f)将该传热流体返回到步骤(b)。

    Processes for Removing Carbon Monoxide from a Crude HCl Gas, and HCl Oxidation Processes Using Purified HCl Gas Obtained Thereby
    73.
    发明申请
    Processes for Removing Carbon Monoxide from a Crude HCl Gas, and HCl Oxidation Processes Using Purified HCl Gas Obtained Thereby 审中-公开
    从粗HCl气体中除去一氧化碳的方法以及使用由此获得的纯化的HCl气体的HCl氧化方法

    公开(公告)号:US20100092373A1

    公开(公告)日:2010-04-15

    申请号:US12579445

    申请日:2009-10-15

    IPC分类号: C01B7/04

    CPC分类号: C01B7/0706

    摘要: The present invention relates to a process for removing gases comprising carbon monoxide from a crude HCl gas which comprises at least carbon monoxide with or without nitrogen, consisting at least of the process steps of: a) compressing the crude HCl gas to an elevated pressure in a compression stage; b) cooling the compressed crude HCl gas so as to liquefy hydrogen chloride, leaving the gas comprising carbon monoxide; c) removing this gas comprising carbon monoxide from the liquefied hydrogen chloride; d) evaporating the liquid hydrogen chloride and providing it as purified HCl gas for the HCl oxidation process, and to an HCl oxidation process coupled to this process.

    摘要翻译: 本发明涉及一种从含有或不含氮的至少一氧化碳的粗HCl气体中除去包含一氧化碳的气体的方法,该方法至少包括以下步骤:a)将粗HCl气体压缩至高压 压缩阶段 b)冷却压缩的原生HCl气体以使氯化氢液化,留下包含一氧化碳的气体; c)从液化的氯化氢中除去包含一氧化碳的气体; d)蒸发液体氯化氢并将其提供为用于HCl氧化过程的纯化HCl气体,以及与该方法偶联的HCl氧化方法。

    HYDROGEN CHLORIDE SUPPLY SYSTEM, AIR POLLUTION CONTROL SYSTEM, AND HYDROGEN CHLORIDE SUPPLY CONTROL SYSTEM
    75.
    发明申请
    HYDROGEN CHLORIDE SUPPLY SYSTEM, AIR POLLUTION CONTROL SYSTEM, AND HYDROGEN CHLORIDE SUPPLY CONTROL SYSTEM 有权
    氢氯化物供应系统,空气污染控制系统和氯化氢供应控制系统

    公开(公告)号:US20090182650A1

    公开(公告)日:2009-07-16

    申请号:US12349804

    申请日:2009-01-07

    摘要: An air pollution control system comprises: a carry-in tank truck that carries in a feedstock, i.e., concentrated hydrochloric acid (35% hydrochloric acid); a hydrogen chloride vaporizer that vaporizes the concentrated hydrochloric acid to obtain hydrogen chloride; a liquid level regulator that separates residual hydrogen chloride from extracted dilute hydrochloric acid discharged as a by-product from the hydrogen chloride vaporizer, and that regulates the liquid level of the hydrogen chloride vaporizer; a concentration regulating tank that regulates the hydrochloric acid concentration of extracted dilute hydrochloric acid 25B from which the residual hydrogen chloride has been separated to a predetermined concentration (e.g., 22%); a by-product tank that stores therein dilute hydrochloric acid regulated to have a predetermined concentration; and a carry-out tank truck that carries out the dilute hydrochloric acid with a predetermined concentration discharged from the by-product tank.

    摘要翻译: 一种空气污染控制系统,包括:携带原料即携带式罐车,即浓盐酸(35%盐酸); 蒸发浓盐酸得到氯化氢的氯化氢蒸发器; 将剩余氯化氢与作为副产物从氯化氢蒸发器排出的萃取的稀盐酸分离并调节氯化氢蒸发器的液面的液位调节器; 浓度调节槽,其调节从其中分离残留氯化氢至预定浓度(例如22%)的提取的稀盐酸25B的盐酸浓度; 副产品罐,其中储存调节为具有预定浓度的稀盐酸; 以及进行从副产物罐排出的预定浓度的稀盐酸的运载罐车。

    Process for purification of anhydrous hydrogen chloride gas
    76.
    发明授权
    Process for purification of anhydrous hydrogen chloride gas 有权
    纯化无水氯化氢气体的方法

    公开(公告)号:US07555917B2

    公开(公告)日:2009-07-07

    申请号:US10787608

    申请日:2004-02-26

    IPC分类号: F25J3/00

    CPC分类号: B01D53/002 C01B7/0706

    摘要: High boiling contaminants such as chloro-aromatic compounds are removed from a gas by compressing the gas containing the contaminant, cooling the compressed gas to reduce the temperature of the gas to at least 20° C. above the outlet temperature of a second cooling stage but above the freezing point of the highest melting compound in the first cooling stage, further cooling the gas in a second cooling stage to at least −20° C., returning cooled gas from the second cooling stage to the first cooling stage, and recovering condensate streams which contain the contaminant compound from the first and second cooling stages. An apparatus suitable for carrying out this process is also disclosed. The process of the present invention is particularly useful for removing chloro-aromatic compounds from anhydrous hydrogen chloride gas.

    摘要翻译: 通过压缩含有污染物的气体从气体中除去高沸点污染物,例如氯 - 芳族化合物,冷却压缩气体,将气体的温度降低至高于第二冷却阶段的出口温度至少20℃,但是 高于第一冷却阶段中最高熔融化合物的凝固点,在第二冷却阶段进一步将气体冷却至至少-20℃,将冷却的气体从第二冷却段返回到第一冷却阶段,并回收冷凝物 含有来自第一和第二冷却阶段的污染化合物的物流。 还公开了一种适于实施该方法的装置。 本发明的方法特别适用于从无水氯化氢气体中除去氯代芳族化合物。

    PROCESSES FOR THE PRODUCTION OF ORGANIC ISOCYANATES
    80.
    发明申请
    PROCESSES FOR THE PRODUCTION OF ORGANIC ISOCYANATES 审中-公开
    生产有机异氰酸酯的方法

    公开(公告)号:US20070276154A1

    公开(公告)日:2007-11-29

    申请号:US11752395

    申请日:2007-05-23

    IPC分类号: C07C263/10 C07C51/58

    摘要: Processes for the production of organic isocyanates, comprising the production of phosgene by reaction of CO with Cl2, the reaction of the phosgene with organic amines to form the organic isocyanates, and the separation of the organic isocyanates, which is characterised in that the carbon monoxide is removed from the HCl-containing waste gas from the isocyanate synthesis by reaction with chlorine to form phosgene. The phosgene can be separated off and can optionally be fed back into an isocyanate synthesis The HCl-containing, CO-depleted gas is preferably subjected to HCl oxidation (Deacon). A closed chlorine cycle can be used in the isocyanate synthesis.

    摘要翻译: 用于生产有机异氰酸酯的方法,包括通过CO与Cl 2反应生成光气,光气与有机胺的反应形成有机异氰酸酯,分离有机异氰酸酯, 其特征在于,通过与氯反应从异氰酸酯合成中从含HCl的废气中除去一氧化碳以形成光气。 可以将光气分离出来,并且可以任选地反馈到异氰酸酯合成中。含HCl的CO-贫化气体优选进行HCl氧化(Deacon)。 封闭的氯循环可用于异氰酸酯合成。