公开(公告)号：US08088266B2

公开(公告)日：2012-01-03

申请号：US12389676

申请日：2009-02-20

Applicant: Curtis Douglas Dove ,  Goang Cheng Chang ,  Wei-Liang Yang

Inventor： Curtis Douglas Dove ,  Goang Cheng Chang ,  Wei-Liang Yang

IPC: B01D61/44

CPC classification number: B01D61/422 ,  B01D61/46 ,  C02F1/4693 ,  C02F2103/346

Abstract: An electrodialysis method for the treatment of silicate-containing potassium hydroxide etching waste solution is provided. The method comprises: providing a reaction tank including a cathode, an anode, and two cation dialysis membranes, wherein the reaction tank is divided by the cation dialysis membranes into a cathode chamber, an anode chamber and a waste solution disposing chamber located therebetween; filling a sulfuric acid solution into the anode chamber; filling a potassium hydroxide solution into the cathode chamber; introducing a silicate-containing potassium hydroxide etching waste solution into the waste solution disposing chamber; and applying a voltage and a current density to each of the chambers to render potassium ions to transport from the waste solution chamber through the cation dialysis membrane to the cathode chamber.

Abstract translation: 提供了一种用于处理含硅酸盐的氢氧化钾蚀刻废液的电渗析方法。 该方法包括：提供包括阴极，阳极和两个阳离子透析膜的反应槽，其中反应槽被阳离子透析膜分成阴极室，阳极室和位于其间的废溶液处理室; 将硫酸溶液填充到阳极室中; 将氢氧化钾溶液填充到阴极室中; 将含硅酸盐的氢氧化钾蚀刻废液引入废液处理室; 以及向每个室施加电压和电流密度以使钾离子从废溶液室通过阳离子透析膜输送到阴极室。

公开(公告)号：US20100213077A1

公开(公告)日：2010-08-26

申请号：US12389676

申请日：2009-02-20

Applicant: CURTIS DOUGLAS DOVE ,  Goang Cheng Chang ,  Wei-Liang Yang

Inventor： CURTIS DOUGLAS DOVE ,  Goang Cheng Chang ,  Wei-Liang Yang

IPC: C25F7/02

CPC classification number: B01D61/422 ,  B01D61/46 ,  C02F1/4693 ,  C02F2103/346

Abstract: An electrodialysis method for the treatment of silicate-containing potassium hydroxide etching waste solution is provided. The method comprises: providing a reaction tank including a cathode, an anode, and two cation dialysis membranes, wherein the reaction tank is divided by the cation dialysis membranes into a cathode chamber, an anode chamber and a waste solution disposing chamber located therebetween; filling a sulfuric acid solution into the anode chamber; filling a potassium hydroxide solution into the cathode chamber; introducing a silicate-containing potassium hydroxide etching waste solution into the waste solution disposing chamber; and applying a voltage and a current density to each of the chambers to render potassium ions to transport from the waste solution chamber through the cation dialysis membrane to the cathode chamber.

Abstract translation: 提供了一种用于处理含硅酸盐的氢氧化钾蚀刻废液的电渗析方法。 该方法包括：提供包括阴极，阳极和两个阳离子透析膜的反应槽，其中反应槽被阳离子透析膜分成阴极室，阳极室和位于其间的废溶液处理室; 将硫酸溶液填充到阳极室中; 将氢氧化钾溶液填充到阴极室中; 将含硅酸盐的氢氧化钾蚀刻废液引入废液处理室; 以及向每个室施加电压和电流密度以使钾离子从废溶液室通过阳离子透析膜输送到阴极室。

公开(公告)号：US06734686B2

公开(公告)日：2004-05-11

申请号：US10118778

申请日：2002-04-08

Applicant: Chi-Hui Lin ,  Cheng-Jye Chu ,  Pai-Mou Lee ,  Goang-Cheng Chang

Inventor： Chi-Hui Lin ,  Cheng-Jye Chu ,  Pai-Mou Lee ,  Goang-Cheng Chang

IPC: G01R2726

CPC classification number: G01F23/268 ,  G01F23/263 ,  G01F23/266 ,  G01N27/226

Abstract: This invention relates to a method for detecting quantity variation of high purity liquid chemicals by way of detecting capacitance variation to determine the liquid level of liquid chemicals. Meanwhile, the ratio of the area of the smallest electrode of the capacitor to the distance between the electrodes is adjusted to magnify the capacitance so that a very small variation can be observed clearly. This invention also discloses a device to carry out this method.

Abstract translation: 本发明涉及一种用于通过检测电容变化来检测高纯度液体化学品的量变化以确定液体化学品的液位的方法。 同时，电容器的最小电极的面积与电极之间的距离的比率被调节以放大电容，使得可以清楚地观察到非常小的变化。 本发明还公开了一种执行该方法的装置。