Process for producing amino acid or salt thereof by column technique and production apparatus thereof
    171.
    发明申请
    Process for producing amino acid or salt thereof by column technique and production apparatus thereof 有权
    通过柱技术制备氨基酸或其盐的方法及其制备装置

    公开(公告)号:US20050284813A1

    公开(公告)日:2005-12-29

    申请号:US11166755

    申请日:2005-06-27

    CPC classification number: B01D15/363 B01D15/163 B01J41/05 C07C227/40

    Abstract: According to the process for producing amino acid or salt thereof in the present invention, in the adsorption step, an amino acid-containing aqueous solution is fed into a pressure tight column so that a free amino acid is adsorbed on a carbonate-type anion exchange resin packed in the pressure tight column. Subsequently, in the elution step, eluent liquid containing a hydrogen carbonate ion and/or a carbonate ion is injected into the pressure tight column in a pressurized state to elute the amino acid adsorbed on the anion exchange resin and simultaneously to regenarate the anion exchange resin into the carbonate-type. In the case of purifying an acidic amino acid, an aqueous ammonium carbonate solution is employed as the eluent liquid. In the case of purifying a neutral amino acid, an aqueous carbonic acid solution, an aqueous hydrogen carbonate solution, an aqueous ammonium hydrogen carbonate solution or an aqueous ammonium carbonate solution is employed as the eluent liquid. Further, a breakthrough liquid discharged from the adsorption step is optionally concentrated to remove the volatile carbonate acid component and ammonium component from the breakthrough liquid. Thus, the solid content in the breakthrough liquid can be reduced.

    Abstract translation: 根据本发明的氨基酸或其盐的制造方法,在吸附工序中,将含有氨基酸的水溶液进料到耐压塔中,使游离氨基酸吸附在碳酸盐型阴离子交换 树脂包装在压力柱中。 随后,在洗脱步骤中,将含有碳酸氢根离子和/或碳酸根离子的洗脱液以加压状态注入压力柱中,以洗脱吸附在阴离子交换树脂上的氨基酸,同时重新设计阴离子交换树脂 进入碳酸盐型。 在纯化酸性氨基酸的情况下,使用碳酸铵水溶液作为洗脱液。 在纯化中性氨基酸的情况下,使用碳酸水溶液,碳酸氢钠水溶液,碳酸氢铵水溶液或碳酸铵水溶液作为洗脱液。 此外,任选地浓缩从吸附步骤排出的突破性液体,以从穿透液中除去挥发性碳酸酯组分和铵组分。 因此,可以降低透液中的固体含量。

    Method and apparatus for deionizing water
    173.
    发明申请
    Method and apparatus for deionizing water 审中-公开
    去离子水的方法和设备

    公开(公告)号:US20040251207A1

    公开(公告)日:2004-12-16

    申请号:US10459041

    申请日:2003-06-11

    Inventor: Robert Carlberg

    Abstract: A method and apparatus for producing deionized water by passing water to be treated through a deionizing and water treatment system having carbon filtration and beds of packed ion exchange resins, specifically including beds of mixed anion resins, so that sediment and impurity ions are removed as adsorbed on the ion exchange sites of the resins and a method of regenerating the ion exchange resins after having its ion-exchanging and adsorbing abilities lowered.

    Abstract translation: 通过使具有碳过滤的去离子水处理系统和填充离子交换树脂床,特别是包含混合阴离子树脂的床进行处理的水来生产去离子水的方法和装置,使得沉积物和杂质离子被吸附除去 在树脂的离子交换位置和离子交换树脂的离子交换和吸附能力降低后再生离子交换树脂的方法。

    Device for the deionization of substances that are not stable at acidic pH
    175.
    发明授权
    Device for the deionization of substances that are not stable at acidic pH 有权
    在酸性pH下不稳定的物质去离子的装置

    公开(公告)号:US06432306B1

    公开(公告)日:2002-08-13

    申请号:US09547904

    申请日:2000-04-11

    CPC classification number: B01J47/028 B01J41/05 B01J39/07 B01J41/07

    Abstract: A process based on ion exchange with separated beds is disclosed for the deionization of substances that are not stable in the presence of strongly acidic cation exchangers, wherein the solution to be deionized is contacted with a first bed consisting of a basic anion exchanger in the form of hydrogen carbonate and subsequently with a second bed, connected in series, consisting of a weakly acidic cation exchanger in hydrogen form.

    Abstract translation: 公开了一种基于与分离床的离子交换的方法,用于在强酸性阳离子交换剂存在下不稳定的物质的去离子,其中待去离子的溶液与由碱性阴离子交换剂组成的第一床 的碳酸氢盐,随后与第二床串联连接,由氢形式的弱酸性阳离子交换剂组成。

    Recovery of iodide from chemical process wastewater
    176.
    发明授权
    Recovery of iodide from chemical process wastewater 失效
    从化学工艺废水中回收碘化物

    公开(公告)号:US06379556B1

    公开(公告)日:2002-04-30

    申请号:US09394325

    申请日:1999-09-13

    CPC classification number: C02F1/42 B01J41/05 B01J49/57 B01J41/07

    Abstract: The recovery of iodide from chemical process wastewater is accomplished by loading the wastewater containing iodide onto a strongly basic anion-exchange resin in free-base form; eluting the sorbed iodide from the resin with aqueous strong acid (e.g., hydrochloric acid); loading the iodide-rich cuts onto a weakly basic anion-exchange resin in free-base form; and eluting the sorbed iodide with aqueous base (e.g., sodium hydroxide). The recovered iodide typically has sufficient purity to permit its re-use in the chemical process.

    Abstract translation: 从化学处理废水中回收碘化物是通过将含有碘化物的废水以游离碱形式加载到强碱性阴离子交换树脂上来实现的; 用强酸水溶液(如盐酸)从树脂中洗脱吸附的碘化物; 将富含碘化物的切片以游离碱形式加载到弱碱性阴离子交换树脂上; 并用碱水溶液(例如氢氧化钠)洗脱吸附的碘化物。 回收的碘化物通常具有足够的纯度以允许其在化学过程中重复使用。

    Phenolic resin purification
    178.
    发明授权
    Phenolic resin purification 失效
    酚醛树脂净化

    公开(公告)号:US06200479B1

    公开(公告)日:2001-03-13

    申请号:US08783211

    申请日:1997-01-14

    Abstract: The invention is for a process of removing acid salt contaminants from a resin solution. The process comprises providing an organic solution of a phenolic resin having a portion of its phenolic hydroxyl groups condensed with an acid halide in the presence of a base catalyst. The organic solutions is then contacted with a strong acid cation exchange resin and a base anion exchange resin for a time sufficient to remove essentially all of said acid salt contaminants. Acid salt contamination is reduced to a level below normal detection limits.

    Abstract translation: 本发明是从树脂溶液中除去酸盐污染物的方法。 该方法包括在碱催化剂的存在下提供其酚羟基的一部分与酰卤缩合的酚醛树脂的有机溶液。 然后将有机溶液与强酸阳离子交换树脂和碱性阴离子交换树脂接触足够时间以除去基本上所有的酸盐污染物。 酸盐污染降低到正常检测限以下的水平。

    Chemical process
    179.
    发明授权

    公开(公告)号:US3769401A

    公开(公告)日:1973-10-30

    申请号:US3769401D

    申请日:1970-11-19

    Applicant: FROSST & CO

    Inventor: THOMPSON L

    CPC classification number: B01J41/05

    Abstract: THE INVENTION DISCLOSED HEREIN RELATES TO A NOVEL PROCESS FOR THE ISOLATION AND PURIFICATION OF CONJUGATED ESTROGENS BY BRINGING EQUINE PREGNANCY URINE OR, ALTERNATIVELY, AN AQUEOUS EXTRACT DERIVED FROM EQUINE PREGANCY URINE OR, ALTERNATIVELY, AN AQUEOUS EXTRACT DERIVED FROM EQUINE PREGNANCY RUINE, INTO CONTAC WITH AN ANION EXCHANGE RESIN, THEREBY ABSORBING SAID CONJUGATED ESTROGENS ON SAID RESIN, AND ELUTING THE RESIN WITH AN AQUEOUS ALCOHOL ELUTING SOLVENT CONTAINING CHLORIDE IONS. CONJUGATED ESTROGENS DERIVED FROM EQUINE PREGANCY URINE (PMU) HAVE BEEN USED FOR MANY YEARS IN ESTROGENIC PREPARATIONS.

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