CN1715214A - Acid descaling agent - Google Patents
Acid descaling agent Download PDFInfo
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- CN1715214A CN1715214A CN 200410025513 CN200410025513A CN1715214A CN 1715214 A CN1715214 A CN 1715214A CN 200410025513 CN200410025513 CN 200410025513 CN 200410025513 A CN200410025513 A CN 200410025513A CN 1715214 A CN1715214 A CN 1715214A
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- descaling agent
- acidic descaling
- acid
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- cleaning
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Abstract
The present invention belongs to the field of chemical technology, and discloses one kind of acid descaling agent. The acid descaling agent contains EDTA, sodium humate, polyphosphate, hydroxy ethylidene diphosphonic acid and water, and has pH value of 2-3.5. The present invention also discloses the application and usage of the acid descaling agent. The acid descaling agent can eliminate carbonate scale, sulfate scale, rust scale and other kinds of mineral deposit, silt deposit, etc. effectively.
Description
Technical field
The invention belongs to chemical field, relate to a kind of chemical detergent, more specifically, the present invention relates to a kind of acidic descaling agent.
Background technology
At present, domestic acidic chemical cleaning agent at center air-condition circle water system, industrial cooling circulating water system mainly is to adopt hydrochloric acid, sulfuric acid, nitric acid, ammonium bifluoride etc.Wherein make with the most use with hydrochloric acid.Acid can wash hard scale of being made up of alkaline earth metal carbonate in the hardware and the corrosion product of being made up of metal oxide effectively.The carbonate of these acid and metal or oxide compound reaction make it to change into the soluble metal salt class.Clean cleaning system with these clean-out systems and must add inhibiter before, though present restrainer corrosion mitigating effect is better, most of effective inhibiter all has specificity to a certain extent, promptly only at several metals of certain several acid rust inhibition is arranged.When the system that is cleaned was made up of multiple metal, improper if inhibiter is selected for use, consequence was hardly imaginable.The corrosion mitigating effect of inhibiter is subjected to the restriction of pickling agent concentration still more, if operator's experience is not abundant, add acid or add the method for inhibiter inappropriate, cause the too high or local density of corrosion inhibitor of local acid concentration on the low side, all can make the metal at these positions suffer heavy corrosion.Secondly, acidic cleaner commonly used often can only be at removing a certain dirt layer, and is not obvious to the dirt layer cleaning performance that system is made up of polycomponent.
In order to solve above shortcoming, the inventor has created a kind of energy remove carbonate scale, the acidic descaling agent of the settling of sulfate scale, rust deposite and other mineral substance, silt stores etc. safely, effectively apace.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of acidic descaling agent, contains ethylenediamine tetraacetic acid (EDTA), Sodium salts humic acids, poly-phosphate, 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid, water, and the weight percent of each component is as follows:
Ethylenediamine tetraacetic acid (EDTA) 10%～16%;
Sodium salts humic acids 5%～8%;
Poly-phosphate 20%～27%;
1-Hydroxy Ethylidene-1,1-Diphosphonic Acid 35%～42%;
Water 10%～16%;
PH value after being made into is 2～3.5.
Preferably, the weight percent of each component is as follows:
Ethylenediamine tetraacetic acid (EDTA) 15%;
Sodium salts humic acids 5%;
Poly-phosphate 25%;
1-Hydroxy Ethylidene-1,1-Diphosphonic Acid 40%;
Water 15%;
PH value after being made into is 2～3.5.
Technical problem to be solved by this invention also is to provide the various application of acidic descaling agent of the present invention.Acidic descaling agent of the present invention can be used for the cleaning of incrustation scale, rust deposite, algae in the water systems such as interchanger, central air-conditioning, hot-water supply system and cooling tower.Acidic descaling agent of the present invention also can be used for the cleaning of stove and recycle system incrustation scale thereof.Acidic descaling agent of the present invention also can be used for washing the cleaning of Xian chamber, lavatory, bathroom, ceramic tile facing dirt.Acidic descaling agent of the present invention also can be used for the cleaning of similar dirts such as industrial cooling apparatus.
When adopting the present invention to clean, Dilution ratio according to the thick definite acidic descaling agent of dirt, add behind the medicament and to survey PH one time every half an hour in preceding 4 hours, PH is between 2.5-4.5 in control, adds acidic descaling agent when PH＞4.5, maintenance water pump circulation in preceding 8 hours, closed the pump static immersing then 10 hours, turn on pump circulation 2-6 hour again, clean behind the cleaning fluid discharge with the clear water rinsing, add passivator at last, passivation is more than 48 hours.The Dilution ratio of acidic descaling agent is about 10% generally speaking.
Acidic descaling agent of the present invention does not resemble has extremely strong corrosive nature to metal the strong acid, it is to rely on penetrating power and make organic acid infiltrate through the dirt layer to the effect of peeling off of mud, and and then complexing dissolving and removing, the dirt that dissolves all is muddy or Powdered.
According to formulation provided by the present invention, the major technique of the acidic descaling agent of acquisition sees Table 1:
Table 1
| Proportion | 1.05 | Outward appearance | The faint yellow aqueous solution |
| Firing property | Do not fire | Acid-basicity | Acid |
| Use temperature | ＜70℃ | Working concentration | 5-15％ |
Acidic descaling agent of the present invention can safety, remove carbonate scale effectively apace, the acidic descaling agent of the settling of sulfate scale, rust deposite and other mineral substance, silt stores etc., and easy and simple to handle, with low cost.
Embodiment
Embodiment 1
A kind of acidic descaling agent of the present invention contains ethylenediamine tetraacetic acid (EDTA), Sodium salts humic acids, poly-phosphate, 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid, water, and the weight percent of each component is as follows:
Ethylenediamine tetraacetic acid (EDTA) 10%～16%;
Sodium salts humic acids 5%～8%;
Poly-phosphate 20%～27%;
1-Hydroxy Ethylidene-1,1-Diphosphonic Acid 35%～42%;
Water 10%～16%;
PH value after being made into is 2～3.5.
Preferably, the weight percent of each component is as follows:
Ethylenediamine tetraacetic acid (EDTA) 15%;
Sodium salts humic acids 5%;
Poly-phosphate 25%;
1-Hydroxy Ethylidene-1,1-Diphosphonic Acid 40%;
Water 15%;
PH value after being made into is 2～3.5.
Technical problem to be solved by this invention also is to provide the various application of acidic descaling agent of the present invention.Acidic descaling agent of the present invention can be used for the cleaning of incrustation scale, rust deposite, algae in the water systems such as interchanger, central air-conditioning, hot-water supply system and cooling tower.Acidic descaling agent of the present invention also can be used for the cleaning of stove and recycle system incrustation scale thereof.Acidic descaling agent of the present invention also can be used for washing the cleaning of Xian chamber, lavatory, bathroom, ceramic tile facing dirt.Acidic descaling agent of the present invention also can be used for the cleaning of similar dirts such as industrial cooling apparatus.
When adopting the present invention to clean, Dilution ratio according to the thick definite acidic descaling agent of dirt, add behind the medicament and to survey PH one time every half an hour in preceding 4 hours, PH is between 2.5-4.5 in control, adds acidic descaling agent when PH＞4.5, maintenance water pump circulation in preceding 8 hours, closed the pump static immersing then 10 hours, turn on pump circulation 2-6 hour again, clean behind the cleaning fluid discharge with the clear water rinsing, add passivator at last, passivation is more than 48 hours.The Dilution ratio of acidic descaling agent is about 10% generally speaking.
Embodiment 2
The wash cycles method
1. it is unimpeded the need cleaning system to be done to check that affirmation needs to clean the position current comprehensively, and system does not have the heavy corrosion fault.
2. the position that will clean and other position of not cleaning are separated, and insert temporary pipeline and add explosive barrel, form circulation loop.As no recycle pump itself, must external recycle pump.
3. add up quantity of circulating water, check that circulation loop has or not leakage.
4. according to the Dilution ratio (general 10%) of the thick definite acidic descaling agent of dirt, add behind the medicament and to survey PH one time every half an hour in preceding 4 hours, PH is between 2.5-4.5 in control, adds scale remover when PH＞4.5.Maintenance water pump circulation in preceding 8 hours was closed the pump static immersing 10 hours, turn on pump circulation 2-6 hour more then.
5. clean behind the cleaning fluid discharge with the clear water rinsing.
Claims (6)
1, a kind of acidic descaling agent is characterized in that: it contains ethylenediamine tetraacetic acid (EDTA), Sodium salts humic acids, poly-phosphate, 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid, water, and the weight percent of each component is as follows:
Ethylenediamine tetraacetic acid (EDTA) 10%～16%;
Sodium salts humic acids 5%～8%;
Poly-phosphate 20%～27%;
1-Hydroxy Ethylidene-1,1-Diphosphonic Acid 35%～42%;
Water 10%～16%;
PH value after being made into is 2～3.5.
2, a kind of acidic descaling agent as claimed in claim 1 is characterized in that: the weight percent of each component is as follows:
Ethylenediamine tetraacetic acid (EDTA) 15%;
Sodium salts humic acids 5%;
Poly-phosphate 25%;
1-Hydroxy Ethylidene-1,1-Diphosphonic Acid 40%;
Water 15%;
PH value after being made into is 2～3.5.
3, the application of the described acidic descaling agent of claim 1 is characterized in that: described acidic descaling agent is used for the cleaning of water system incrustation scales such as interchanger, central air-conditioning, hot-water supply system and cooling tower, rust deposite, algae.
4, the application of the described acidic descaling agent of claim 1 is characterized in that: described acidic descaling agent is used for the cleaning of stove and recycle system incrustation scale thereof.
5, the application of the described acidic descaling agent of claim 1 is characterized in that: described acidic descaling agent is used to wash the cleaning of Xian chamber, lavatory, bathroom, ceramic tile facing dirt.
6, the described acidic descaling agent of claim 1, it is characterized in that: described acidic descaling agent is used for the cleaning of similar dirts such as industrial cooling apparatus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410025513 CN1715214A (en) | 2004-06-28 | 2004-06-28 | Acid descaling agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410025513 CN1715214A (en) | 2004-06-28 | 2004-06-28 | Acid descaling agent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1715214A true CN1715214A (en) | 2006-01-04 |
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ID=35821427
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410025513 Pending CN1715214A (en) | 2004-06-28 | 2004-06-28 | Acid descaling agent |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1715214A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101913713A (en) * | 2010-03-16 | 2010-12-15 | 上海立昌环境工程有限公司 | Sulfate scale cleaning agent |
| CN103803730A (en) * | 2013-12-27 | 2014-05-21 | 卢连喜 | Scale inhibitor for gas pump circulating cooling water system |
| CN105821426A (en) * | 2016-05-09 | 2016-08-03 | 爱环吴世(苏州)环保有限公司 | Cleaning agent suitable for refrigerator heat exchanger |
| CN106219777A (en) * | 2016-07-25 | 2016-12-14 | 启东市方圆塑胶制品有限公司 | A kind of acidic descaling agent |
-
2004
- 2004-06-28 CN CN 200410025513 patent/CN1715214A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101913713A (en) * | 2010-03-16 | 2010-12-15 | 上海立昌环境工程有限公司 | Sulfate scale cleaning agent |
| CN101913713B (en) * | 2010-03-16 | 2012-02-29 | 上海立昌环境工程有限公司 | Sulfate scale cleaning agent |
| CN103803730A (en) * | 2013-12-27 | 2014-05-21 | 卢连喜 | Scale inhibitor for gas pump circulating cooling water system |
| CN105821426A (en) * | 2016-05-09 | 2016-08-03 | 爱环吴世(苏州)环保有限公司 | Cleaning agent suitable for refrigerator heat exchanger |
| CN106219777A (en) * | 2016-07-25 | 2016-12-14 | 启东市方圆塑胶制品有限公司 | A kind of acidic descaling agent |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |