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Hardness indicating agent for circulating water and preparation method for hardness indicating agent

A circulating water and indicator technology, which is applied in the field of water treatment, can solve the problems of cumbersome hardness ion methods, etc., and achieve the effects of good indication, simple operation and simple use

Inactive Publication Date: 2014-10-29
WEIHAI XIANGYU TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The series of products of the present invention have the characteristics of quantitative management reference value when the circulating water system operates under a suitable concentration multiple, and solve the trouble of the traditional method of measuring hardness ions.

Method used

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  • Hardness indicating agent for circulating water and preparation method for hardness indicating agent
  • Hardness indicating agent for circulating water and preparation method for hardness indicating agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Select raw materials by weight percentage

[0022] EDTA 1.86%,

[0023] Borax 0.45%,

[0024] PH regulator 0.04%,

[0025] Chrome Black T 0.1%,

[0026] Triethanolamine 10%,

[0027] The rest is water.

[0028] Add water, pH adjuster, EDTA, borax, chrome black T, and triethanolamine into the container sequentially in proportion, and stir at room temperature for 10-15 minutes to obtain the product.

Embodiment 2

[0030] Select raw materials by weight percentage

[0031] EDTA 2.3%,

[0032] Borax 0.48%,

[0033] PH regulator 0.02%,

[0034] Chrome Black T 0.1%,

[0035] Triethanolamine 15%,

[0036] Add water, pH adjuster, EDTA, borax, chrome black T, and triethanolamine into the container sequentially in proportion, and stir at room temperature for 10-15 minutes to obtain the product.

Embodiment 3

[0038] Select raw materials by weight percentage

[0039] EDTA 2.6%,

[0040] Borax 0.48%,

[0041] PH regulator 0.02%,

[0042] Chrome Black T 0.1%,

[0043] Triethanolamine 15%,

[0044] Add water, pH adjuster, EDTA, borax, chrome black T, and triethanolamine into the container sequentially in proportion, and stir at room temperature for 10-15 minutes to obtain the product.

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PUM

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Abstract

The invention discloses a hardness indicating agent for detecting whether the value of hardness ions is greater than a management reference value during circulating water treatment, and a preparation method of the hardness indicating agent, and relates to circulating water treatment. The hardness indicating agent for the circulating water comprises the components in percentage by weight: 3.7-7.5 percent of EDTA, 0.45-0.48 percent of borax, 0.02-0.04 percent of a pH conditioning agent, 0.05-0.2 percent of eriochrome black T, 10-20 percent of triethanolamine, and the balance being water. The preparation method comprises the steps of adding water, the pH conditioning agent, EDTA, borax, eriochrome black T and triethanolamine into a container according to the ratio, and stirring for 10-15 minutes at room temperature to obtain a product.

Description

technical field [0001] The invention relates to water treatment, in particular to a kind of hardness indicator used in circulating water treatment to detect whether hardness ions exceed the management reference value. Background technique [0002] my country is one of the countries with severe water shortages in the world. According to incomplete statistics, some parts of China are seriously short of water, with the water shortage reaching 100 billion cubic meters. my country's economy is in a period of rapid development, and industry is a large water resource consumer and a large waste of water resources. It is understood that the waste of industrial water treatment in my country is mainly due to the low rate of water reuse and the serious loss of water during use. Therefore, improving the reuse rate of industrial water has become the key to industrial water conservation. [0003] In order to reuse water resources and reduce the consumption of water resources, power plant...

Claims

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Application Information

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IPC IPC(8): G01N31/22
Inventor 程晓婷李洪社喻果
Owner WEIHAI XIANGYU TECH
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