Titanium electrode for chlorine generator and preparation method thereof

A technology of chlorine generator and titanium electrode, which is applied in the field of titanium electrode and its preparation, can solve the problems of high chlorine analysis potential and excessive oxygen, and achieve the effect of increasing service life and improving chlorine production efficiency

Inactive Publication Date: 2010-12-22
INTEX IND (XIAMEN) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] U.S. Patent No. 4,336,282 discloses a kind of electrode related to the electrolysis of low-concentration soluble chlorid

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] 1) Sandblasting the surface of a 0.8 mm thick titanium plate with a required area, then removing the oil stains on the surface with acetone, heating and boiling with 5% oxalic acid solution for 4 hours, then taking it out and soaking it in distilled water for later use.

[0020] 2) Weigh 0.0g of chloroplatinic acid, 2.5g of chloroiridic acid and 7.5g of ruthenium trichloride in a 250ml beaker, add 150ml of isopropanol, and then add 25ml of 37.5% concentrated hydrochloric acid;

[0021] 3) Put the solution obtained in step 2) in ice water, stir well to dissolve the solute completely, then brush it on the surface of the treated titanium plate, dry it at room temperature, and then put it in an oven at 120°C for 3 minutes, then place it in the Bake in a muffle furnace at 500°C for 5 minutes;

[0022] 4) Repeat the steps of brushing, drying, baking, and baking in step 3) 30 times to obtain the titanium electrode sample 1 for the chlorine generator of the present invention. ...

Embodiment 2

[0024] 1) Sandblasting the surface of a 0.8 mm thick titanium plate with a required area, then removing the oil stains on the surface with acetone, heating and boiling with 5% oxalic acid solution for 4 hours, then taking it out and soaking it in distilled water for later use.

[0025] 2) Weigh 1.0g of chloroplatinic acid, 2.25g of chloroiridic acid and 6.75g of ruthenium trichloride in a 250ml beaker, add 150ml of isopropanol, and then add 25ml of 37.5% concentrated hydrochloric acid;

[0026] 3) Put the solution obtained in step 2) in ice water, stir well to dissolve the solute completely, then brush it on the surface of the treated titanium plate, dry it at room temperature, and then put it in an oven at 120°C for 3 minutes, then place it in the Bake in a muffle furnace at 500°C for 5 minutes;

[0027] 4) Repeat the steps of brushing, drying, baking, and baking in step 3) 30 times to obtain the titanium electrode sample 2 for the chlorine generator of the present invention....

Embodiment 3

[0029] 1) Sandblasting the surface of a 0.8 mm thick titanium plate with a required area, then removing the oil stains on the surface with acetone, heating and boiling with 5% oxalic acid solution for 4 hours, then taking it out and soaking it in distilled water for later use.

[0030] 2) Weigh 3.0g of chloroplatinic acid, 1.75g ​​of chloroiridic acid and 5.25g of ruthenium trichloride in a 250ml beaker, add 150ml of isopropanol, and then add 25ml of 37.5% concentrated hydrochloric acid;

[0031] 3) Put the solution obtained in step 2) in ice water, stir well to dissolve the solute completely, then brush it on the surface of the treated titanium plate, dry it at room temperature, and then put it in an oven at 120°C for 3 minutes, then place it in the Bake in a muffle furnace at 500°C for 5 minutes;

[0032] 4) Repeat the steps of brushing, drying, baking and baking in step 3) 30 times to obtain the titanium electrode sample 3 for chlorine generator of the present invention.

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PUM

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Abstract

The invention provides a titanium electrode for a chlorine generator and a preparation method thereof, relating to a chlorine generator. The invention provides a titanium electrode with higher chlorine yield efficiency and longer service life for a chlorine generator and a preparation method thereof. The titanium electrode for the chlorine generator is provided with a titanium substrate on which a surface coating is arranged, wherein the surface coating is an oxide layer prepared from the following metals in percentage by mass: 0-70 percent of platinum, 10-80 percent of iridium and 20-90 percent of ruthenium. The preparation method comprises the following steps of: soaking the titanium substrate after surface treatment in water for later use; dissolving chloroplatinic acid, chloro-iridic acid and ruthenium trichloride in a mixed solution of isopropyl alcohol and hydrochloric acid to obtain a coating solution; and cooling, stirring and recoating the coating solution on the titanium substrate, drying, baking, recoating and baking to obtain the finished product.

Description

technical field [0001] The invention relates to a chlorine generator, in particular to a titanium electrode used in the chlorine generator and a preparation method thereof. Background technique [0002] With the continuous pollution of water resources on the earth and the continuous shortage of water resources, more and more recreational facilities such as swimming pools, living water halls or saunas are favored by people. In order to ensure the quality of water in these recreational facilities, it is usually necessary to The most common way to disinfect the water used is to use chlorine gas disinfection or a mixed disinfection method of chlorine gas and copper ions. In order to keep the available chlorine in water within a reasonable range of 1-3ppm, and at the same time avoid the local chlorine concentration caused by rapid chlorine production is too high and hurt people, the general practice is to put about 0.3% table salt in the circulating water, and then electrolyze th...

Claims

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Application Information

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IPC IPC(8): C25B11/08C25B11/10C25B1/26
Inventor 林华乡蔡志发陈华清
Owner INTEX IND (XIAMEN) CO LTD
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