公开(公告)号：US4820421A

公开(公告)日：1989-04-11

申请号：US45079

申请日：1987-05-01

Applicant: David C. Auerswald

Inventor： David C. Auerswald

IPC: B01J39/04 ,  C02F1/42

CPC classification number: B01J39/043

Abstract: Water is demineralized by passage through a water demineralization system. The water demineralization system comprises a series of at least three ion exchange resin zones. The sequential series comprises a strong acid cation (SAC) resin zone, a first anion resin zone, and a weak acid cation (WAC) resin zone. The SAC resin zone comprises a SAC resin for removing cations from the water, the first anion resin zone comprises an anion resin for removing anions from the water, and the WAC resin zone comprises a WAC resin for removing cations from water without substantially splitting any salts present in the water. Means for connecting each resin zone in the series are provided so that water can pass sequentially through the system. A method is also provided for regenerating the WAC resin from sodium and ammonium exhaustants. This method comprises contacting the WAC resin with an aqueous solution of a regenerant that is substantially devoid of sulfur and halogen groups. The regenerant is selected from the group consisting of (a) organic acids, (b) inorganic acids, (c) amine salts of (a) and (b), (d) amines, and (e) combinations thereof.

Abstract translation: 水通过水脱矿质系统脱矿质。 水脱矿质系统包括一系列至少三个离子交换树脂区。 顺序系列包括强酸阳离子（SAC）树脂区，第一阴离子树脂区和弱酸阳离子（WAC）树脂区。 SAC树脂区域包括用于从水中除去阳离子的SAC树脂，第一阴离子树脂区域包括用于从水中除去阴离子的阴离子树脂，WAC树脂区域包括WAC树脂，用于从水中除去阳离子而基本上不分裂任何盐 在水中存在。 提供用于连接串联中的每个树脂区的装置，使得水可以顺序地通过系统。 还提供了从钠和铵排出物再生WAC树脂的方法。 该方法包括使WAC树脂与基本上不含硫和卤素基团的再生剂的水溶液接触。 再生剂选自（a）有机酸，（b）无机酸，（c）（a）和（b）的胺盐，（d）胺和（e）它们的组合。

公开(公告)号：US5124362A

公开(公告)日：1992-06-23

申请号：US14797

申请日：1987-02-13

Applicant: David C. Auerswald ,  Frances M. Cutler

Inventor： David C. Auerswald ,  Frances M. Cutler

IPC: B01J49/00

CPC classification number: B01J49/0078 ,  B01J49/0073

Abstract: A method for removing organic foulants such as organic sulfonates from an anion exchange resin comprises treating the anion exchange resin at an elevated temperature with a defouling solution containing at least 6% ammonium sulfate (wt/wt sulfate). The method is useful for removing organic foulants from the anion exchange resin used for polishing condensate water in power plants.

Abstract translation: 从阴离子交换树脂中除去有机污染物如有机磺酸盐的方法包括用含有至少6％硫酸铵（wt / wt硫酸盐）的防污溶液在升高的温度下处理阴离子交换树脂。 该方法可用于从用于抛光发电厂冷凝水的阴离子交换树脂中除去有机污垢。

公开(公告)号：US4904383A

公开(公告)日：1990-02-27

申请号：US320115

申请日：1989-03-07

Applicant: David C. Auerswald

Inventor： David C. Auerswald

IPC: B01J39/04

CPC classification number: B01J39/043

Abstract: Water is demineralized by passage through a water demineralization system. The water demineralization system comprises a series of at least three ion exchange resin zones. The sequential series comprises a strong acid cation (SAC) resin zone, a first anion resin zone, and a weak acid cation (WAC) resin zone. The SAC resin zone comprises a SAC resin for removing cations from the water, the first anion resin zone comprises an anion resin for removing anions from the water, and the WAC resin zone comprises a WAC resin for removing cations from water without substantially splitting any salts present in the water. Means for connecting each resin zone in the series are provided so that water can pass sequentially through the system. A method is also provided for regenerating the WAC resin from sodium and ammonium exhaustants. This method comprises contacting the WAC resin with an aqueous solution of a regenerant that is substantially devoid of sulfur and halogen groups. The regenerant is selected from the group consisting of (a) organic acids, (b) inorganic acids, (c) amine salts of (a) and (b), (d) amines, and (e) combinations thereof.

Abstract translation: 水通过水脱矿质系统脱矿质。 水脱矿质系统包括一系列至少三个离子交换树脂区。 顺序系列包括强酸阳离子（SAC）树脂区，第一阴离子树脂区和弱酸阳离子（WAC）树脂区。 SAC树脂区域包括用于从水中除去阳离子的SAC树脂，第一阴离子树脂区域包括用于从水中除去阴离子的阴离子树脂，WAC树脂区域包括WAC树脂，用于从水中除去阳离子而基本上不分裂任何盐 在水中存在。 提供用于连接串联中的每个树脂区的装置，使得水可以顺序地通过系统。 还提供了从钠和铵排出物再生WAC树脂的方法。 该方法包括使WAC树脂与基本上不含硫和卤素基团的再生剂的水溶液接触。 再生剂选自（a）有机酸，（b）无机酸，（c）（a）和（b）的胺盐，（d）胺和（e）它们的组合。

公开(公告)号：US4511675A

公开(公告)日：1985-04-16

申请号：US486380

申请日：1983-04-19

Applicant: David C. Auerswald

Inventor： David C. Auerswald

IPC: B01J49/00

CPC classification number: B01J49/0017 ,  B01J49/0021

Abstract: A process for regenerating the anion and cation exchange resins used for polishing water for steam generation allows the polishers to be operated with reduced effluent levels of sodium, chloride and sulfate to prevent corrosion of the steam turbine power plant system. In the process, both the cation and anion exchange resins are treated only with neutral or alkaline aqueous solutions including ammonium sulfate.

Abstract translation: 用于再生用于抛光水以产生蒸汽产生的阴离子和阳离子交换树脂的方法允许抛光机以降低的钠，氯化物和硫酸盐的排放水平操作，以防止蒸汽轮机发电厂系统的腐蚀。 在此过程中，阳离子交换树脂和阴离子交换树脂仅用中性或碱性水溶液（包括硫酸铵）进行处理。