Environment-friendly boiler descaling acid pickling agent

A pickling agent and boiler technology, applied in the field of daily chemical industry, can solve the problems of high pickling temperature, high process and long time, and achieve the effects of low pickling temperature, simple process and short time.

Inactive Publication Date: 2016-07-06
田建频
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If this continues, the service life of the boiler will be reduced, affecting normal industrial production.
In order to clean up scale, we mostly use pickling agents based on hydrochloric acid. This kind of pickling agent requi

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0007] Embodiment 1, an environment-friendly boiler descaling pickling agent, the various materials are composed of the following weight percentages: cetyl dimethyl benzyl ammonium chloride 20%, phosphoric acid 8%, fluosilicic acid 10%, silicon 2% sodium thiocyanate, 4% ammonium thiocyanate, 1% sodium dodecylbenzenesulfonate, 1% ethylenediaminetetraacetic acid, 1% hydrazine hydrate, and the balance is water.

Embodiment 2

[0008] Embodiment 2, an environment-friendly boiler descaling pickling agent, each material is composed of the following weight percentages: cetyl dimethyl benzyl ammonium chloride 10%, phosphoric acid 15%, fluosilicic acid 8%, silicon 8% sodium thiocyanate, 1% ammonium thiocyanate, 3% sodium dodecylbenzenesulfonate, 0.1% ethylenediaminetetraacetic acid, 3% hydrazine hydrate, and the balance is water.

Embodiment 3

[0009] Embodiment 3, an environment-friendly boiler descaling pickling agent, the various materials are composed of the following weight percentages: 15% cetyl dimethyl benzyl ammonium chloride, 12% phosphoric acid, 9% fluosilicic acid, silicon sodium thiocyanate 5%, ammonium thiocyanate 2%, sodium dodecylbenzenesulfonate 2%, ethylenediaminetetraacetic acid 0.5%, hydrazine hydrate 2%, and the balance is water.

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PUM

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Abstract

The invention relates to the technical field of the daily chemical industry, in particular to an environment-friendly boiler descaling acid pickling agent. The acid pickling agent is prepared from, by weight, 10-20% of benzylhexadecyldimethylammonium chloride, 8-15% of phosphoric acid, 8-10% of fluosilicic acid, 2-8% of sodium silicate, 1-4% of ammonium thiocyanate, 1-3% of sodium dodecyl benzene sulfonate, 0.1-1% of ethylenediaminetetraacetic acid, 1-3% of hydrazine hydrate and the balance water. The environment-friendly boiler descaling acid pickling agent is ideal in performance and simple in technology.

Description

technical field [0001] The invention relates to the technical field of daily chemical industry, in particular to an environmentally friendly pickling agent for descaling boilers. Background technique [0002] Nowadays, in daily industrial production, boiler water will be continuously circulated during use, and the mineral content in the water will continue to increase, which will cause scale on the furnace wall. Scale can greatly reduce the heat exchange efficiency of boiler reactions. If this continues, the service life of the boiler will be reduced, affecting normal industrial production. In order to clean up scale, we mostly use pickling agents based on hydrochloric acid. This kind of pickling agent requires a relatively high process. Generally, the pickling temperature is high, energy consumption is high, and the time is long. In addition, hydrochloric acid is mainly used. The pickling agent will also affect the environment. Contents of the invention [0003] The ob...

Claims

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Application Information

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IPC IPC(8): C23G1/02
Inventor 田建频
Owner 田建频
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