公开(公告)号：US5423965A

公开(公告)日：1995-06-13

申请号：US149837

申请日：1993-11-10

Applicant: Gerhard Kunz

Inventor： Gerhard Kunz

IPC: B01J47/08 ,  B01J49/00 ,  B01D61/44

CPC classification number: B01J49/0052 ,  B01J47/08

Abstract: An electrolytic process and apparatus are disclosed for regenerating separate bed ion exchange resins used to demineralize aqueous solutions, preferably softened water, without the use of additional chemicals. The cation exchanger is regenerated by applying a DC electric voltage between an anode and a cathode across the cation exchanger whereby hydrogen ions produced at the anode displace cations previously absorbed on the cation exchanger during the previous demineralization cycle. The displaced cations move towards the cathode under the influence of the electric voltage and there form a caustic solution with hydroxyl ions produced by the cathode. The cathodically generated caustic solution is then used to chemically regenerate the anion exchanger in a traditional manner. Two embodiments of the invention are disclosed, one of which is an intermittent system of demineralization and regeneration and the other is a continuously operating system.

Abstract translation: 公开了一种用于再生分离床离子交换树脂的电解方法和装置，其用于使水溶液，优选软化水软化，而不使用额外的化学品。 通过在阳极交换器之间施加阳极和阴极之间的直流电压来再生阳离子交换器，由此在阳极处产生的氢离子在先前的脱盐循环期间移动先前在阳离子交换器上吸收的阳离子。 置换的阳离子在电压的影响下向阴极移动，并且形成由阴极产生的羟基离子的苛性碱溶液。 然后将阴极生成的苛性碱溶液以传统方式化学再生阴离子交换剂。 公开了本发明的两个实施例，其中之一是脱盐和再生的间歇系统，另一个是连续操作的系统。

公开(公告)号：US5108616A

公开(公告)日：1992-04-28

申请号：US369238

申请日：1989-06-22

Applicant: Gerhard K. Kunz

Inventor： Gerhard K. Kunz

IPC: B01J49/00 ,  B01J49/02 ,  C02F1/42

CPC classification number: B01J49/0086 ,  B01J49/02 ,  C02F1/42

Abstract: The invention concerns an ion exchange process and system, particularly for the regeneration step following a softening or desalination of aqueous solutions. The regenerant solution is fed in an upward stream through the ion exchanger in a direction opposite to the charging direction, as a sequence of intermittent pulse intervals consisting of pulse flow followed by a period of no flow. During the pulse flow, there is limited hydrodynamic lifting of the ion exchange resin beds in layers, followed by subsequent sedimentation during the pause period, without mixing of the layers.

Abstract translation: 本发明涉及一种离子交换方法和系统，特别是在水溶液软化或脱盐之后的再生步骤。 再生剂溶液沿着与充电方向相反的方向通过离子交换器沿向上的流进料，作为由脉冲流和随后一段无流动组成的间歇脉冲间隔的序列。 在脉冲流动期间，离子交换树脂床的水力动力提升有限，随后在暂停期间随后沉降，而不会混合各层。