CN110257178A - Galvanizing equipment contaminant removing cleaning agent - Google Patents
Galvanizing equipment contaminant removing cleaning agent Download PDFInfo
- Publication number
- CN110257178A CN110257178A CN201910622844.2A CN201910622844A CN110257178A CN 110257178 A CN110257178 A CN 110257178A CN 201910622844 A CN201910622844 A CN 201910622844A CN 110257178 A CN110257178 A CN 110257178A
- Authority
- CN
- China
- Prior art keywords
- corrosion
- galvanizing equipment
- acid
- zinc
- agent
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/38—Cationic compounds
- C11D1/62—Quaternary ammonium compounds
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/02—Inorganic compounds ; Elemental compounds
- C11D3/04—Water-soluble compounds
- C11D3/042—Acids
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/20—Organic compounds containing oxygen
- C11D3/2075—Carboxylic acids-salts thereof
- C11D3/2082—Polycarboxylic acids-salts thereof
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/26—Organic compounds containing nitrogen
- C11D3/28—Heterocyclic compounds containing nitrogen in the ring
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/26—Organic compounds containing nitrogen
- C11D3/30—Amines; Substituted amines ; Quaternized amines
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/37—Polymers
- C11D3/3746—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C11D3/3757—(Co)polymerised carboxylic acids, -anhydrides, -esters in solid and liquid compositions
- C11D3/3765—(Co)polymerised carboxylic acids, -anhydrides, -esters in solid and liquid compositions in liquid compositions
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Emergency Medicine (AREA)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Abstract
The invention discloses a kind of chemicals for galvanizing equipment, belong to chemical cleaning technique field.It is made of the raw material of following weight percent: surfactant 0.3-1.2%；Imidazoline inhibitor 0.1-1.2%；Dispersing agent 0.1-0.8%；Auxiliary agent 0.2-0.8%；Oxalic acid 7-8%；Hydrochloric acid 12-14%, surplus are water.The present invention is mixed inorganic acid and organic acid by optimum proportioning, make it have scale removal and corrosion inhibition, and together with the dodecylbenzyl ammonium chloride, amphoteric imidazoline corrosion inhibiter, additive compound for having good corrosion inhibition to zinc, galvanizing equipment chemical is made, its and scale removal speed low to metal corrosion rate of zinc is fast, meets the requirement of industrial galvanizing equipment scale removal and inhibition.
Description
Technical field
The present invention relates to one kind to be used for galvanizing equipment contaminant removing cleaning agent, belongs to chemical cleaning technique field.
Background technique
In the industrial production, in novel anticorrosion heat-exchange apparatus and warming equipment, a large amount of dissipating using zinc-plating material
Heat pipe cooler carries out heat exchange, and using water as cooling medium, cooled process fluid flows in heat-dissipating pipe, water and air
Simultaneously flowed outside pipe, the heat of tube fluid by pipe outside water be transmitted to air, achieve the purpose that it is cooling, in order to save water cooling
Formula cooler uses water, using water is cooling in cooling tower, recycling.In large-scale food factory, liquefied gas gas station, steel-making
The cooler that factory is often used is evaporative type cooler, and it is cooled material in pipe that heat-dissipating pipe, which is iron matrix zinc-plating material, and pipe is outer to be
Water.Since used cooling water is typically all untreated unboiled water, so, cooler after use after a period of time,
On the heat-dissipating pipe of zinc-plating material, can usually generate fouling, corrode or multiply bacterium algae etc., cause cooler heat dissipation bad and occurs high
Temperature seriously affects the refrigeration effect of equipment, reduces the service life of equipment, and water wasting is power-consuming, it is necessary to chemical cleaning is carried out to it, with
Restore its original effect.But since metallic zinc belongs to very active amphoteric metal, so in chemical cleaning scale removal,
Using general acidic cleaner, it is difficult to play zinc coat protection inhibition antisepsis, to cause cooler heat-dissipating pipe rotten
Erosion, coolant leakage.For this problem, China scientific research personnel has carried out a large amount of research in the research of zinc inhibitor, with
Liaoning Normal University has carried out a large amount of research and probe in this regard, achieves certain progress, but since corrosion inhibiter and scale removal are used
Solubility in acid it is bad, smell is big, the corrosion of zinc is not solved thoroughly, investment practical application be restricted.
Summary of the invention
In order to solve this problem with defect existing for technical field, the object of the present invention is to provide one kind for plating
The scavenger specially of zinc equipment, it is low to zine corrosion, it can be with quick descaling without destroying zinc coat.
To achieve the purpose of the present invention, The technical solution adopted by the invention is as follows:
The galvanizing equipment is comprised the following raw materials by weight percent with chemical: surfactant 0.3-
1.2%；Imidazoline inhibitor 0.1-1.2%；Dispersing agent 0.1-0.8%；Auxiliary agent 0.2-0.8%；Oxalic acid 7-8%；Hydrochloric acid 12-
14%, surplus is water.
Each raw material preferred ingredient are as follows: surfactant 0.3%；Imidazoline inhibitor 0.1%；Dispersing agent 0.1%；Auxiliary agent
0.2%；Oxalic acid 8%；Hydrochloric acid 12%, surplus are water.
The surfactant is dodecylbenzyl ammonium chloride.
The imidazoline inhibitor is amphoteric imidazoline corrosion inhibiter.
The dispersing agent is polyacrylic acid (PAA).
The auxiliary agent is hexamethylenetetramine.
Further, the equivalent concentration of oxalic acid and hydrochloric acid ratio 1:6.
Preparation method includes the following steps:
(1) preparation of mixed acid solution: hydrochloric acid and oxalic acid are configured by equivalent concentration 1:6.
(2) by dodecylbenzyl ammonium chloride, KLSS-A imidazoline inhibitor, PAA, hexamethylenetetramine are added to step (1)
In mixed acid solution, stir evenly.
The invention has the advantages that 1, present invention uses the inorganic acid hydrochloric acid centainly matched and organic acid oxalic acid, utilize inorganic acid
Scale removal speed is fast, and corrosivity is big, at low cost, and organic acid scale removal speed is slow, feature small to zine corrosion, at high cost, inorganic
Acid and organic acid are mixed by optimum proportioning, make it have scale removal and corrosion inhibition.2, dodecylbenzyl ammonium chloride,
The cleaning agent that KLSS-A amphoteric imidazoline corrosion inhibiter, polyacrylic acid, hexamethylenetetramine and nitration mixture are made into, concertedness is good, no gas
Taste is low to corrosion rate of zinc.3, to the rate of corrosion of zinc by 200g/m2.h it is reduced to 6g/m2.h。
Specific embodiment
The present invention is described further with reference to embodiments, the activity of dodecylbenzyl ammonium chloride described in embodiment
Amount of substance percentage composition about 50%；KLSS-A amphoteric imidazoline corrosion inhibiter is the production of Dongying City Ke Ling Chemical Co., Ltd.；PAA matter
Measuring percentage composition is 38%, and oxalic acid is commercial product；Hydrochloric acid is technical pure, mass percentage 32%；Other reagents are commercially available
Analyze pure medicament.
Embodiment 1
One-component corrosion inhibiter monomer additional amount 2 ‰, is added separately in 1 gram equivalent/L HCL and oxalic acid solution, at 25 DEG C, experiment
Under time 2 h, does and Zn corrosion of metal rotary hanging plate is tested；Electrochemical corrosion experimental, and utilize electron microscope and energy
Corrosion coupon surface microscopic topographic after spectrometer scanning corrosion test, the variation of elemental composition are shown in Table 1.
‰ monomer corrosion inhibiter of table 1,1 gram equivalent/L (oxalic acid) solution+2+pure Zn corrodes rotary hanging plate, electrochemistry, spectrum experiment number
According to
As can be seen from Table 1, zinc is in oxalic acid solution, corrosion of the corrosion inhibiter monomer in addition to dodecylbenzyl ammonium chloride, to zinc
The rate of corrosion of lacing film is generally lower than in the hydrochloric acid solution of same concentration, wherein KLSS-A, hexamethylenetetramine, PAA be at two kinds
It is all relatively low to the rate of corrosion of metallic zinc in acid solution.
Embodiment 2
Under one-component corrosion inhibiter monomer additional amount 2 ‰, it is added separately in 1 gram equivalent/L HCL and oxalic acid mixed solution, 25
DEG C, experimental period 2 is small at present, does and tests to Zn corrosion of metal rotary hanging plate；Electrochemical corrosion experimental, and utilize electron microscopic
Corrosion coupon surface microscopic topographic after mirror and energy disperse spectroscopy scanning corrosion test, the variation of elemental composition are shown in Table 2.
Table 2,1 gram equivalents/L (equivalent proportion oxalic acid: HCL=1:4；1:5；1:6；1:7)+2 ‰ monomer corrosion inhibiter+pure Zn corrosion rotation
Lacing film, electrochemistry, spectrum experiment data
From the corrosion coupon experimental data of each corrosion inhibiter monomer of table 2, sentence in conjunction with the synthesis of electrochemical analysis and electron probing analysis
Disconnected, for corrosion inhibiter monomer in the HCL and oxalic acid mixed solution of 1:6, corrosion mitigating effect is good.
Embodiment 3
The more corrosion inhibiter monomers of not same amount are added in 1 gram equivalent/LHCL and oxalic acid solution (1:6) nitration mixture to be compounded, at 25 DEG C,
Experimental period 2 is small at present, does and tests to Zn corrosion of metal rotary hanging plate；Electrochemical corrosion experimental, and utilize electron microscope
With the corrosion coupon surface microscopic topographic after energy disperse spectroscopy scanning corrosion test, the variation of elemental composition is shown in Table 3.
3:1 gram equivalents/L of table mixed acid solution (equivalent proportion oxalic acid: HCL=1:6)+not same amount monomer corrosion inhibiter+pure Zn corrosion rotation
Lacing film, electrochemistry, power spectrum Orthogonal experiment results
According to the K of corrosion inhibiter monomers different in the experiment of table 31、K2、K3The proportion of optimal combination for being worth corrosion inhibiter monomer is
Dodecylbenzyl ammonium chloride 3 ‰, KLSS-A 1 ‰, PAA 1 ‰, six methines, four ammonium 2 ‰.
Embodiment 4
3 ‰ dodecylbenzyl ammonium chlorides, 1 ‰ are added in 1 gram equivalent/LHCL and oxalic acid solution solution (1:6) nitration mixture
KLSS-A, 1 ‰ PAA, 2 ‰ six methine, four ammonium are compounded, and at 25 DEG C, experimental period 1,2,3,4,5 is small at present, are done to Zn
The experiment of corrosion of metal rotary hanging plate；Electrochemical corrosion experimental, and utilize electron microscope and the corrosion examination of energy disperse spectroscopy scanning
Corrosion coupon surface microscopic topographic after testing, the variation of elemental composition are shown in Table 4.
Corrosion rotary hanging plate that table 4, galvanizing equipment cleaning agent change over time, electrochemistry, spectrum experiment result
As can be seen from Table 4, with the difference of experimental period, the corrosion of the galvanizing equipment cleaning agent to zinc, with the time
Extension, good corrosion mitigating effect is presented.
Embodiment 5
1 gram equivalent/L, 200mL hydrochloric acid, oxalic acid are separately added into 1 gram in nitration mixture (oxalic acid+hydrochloric acid 1:4,1:5,1:6,1:7) solution
Calcium carbonate carries out the comparison of scale removal speed.
The scale removal velocity contrast of table 5, mono-acid and different ratio nitration mixture
Embodiment 6
The lower concertedness comparative test result that different corrosion inhibiter monomer complexes are added equally is matched in table 6,1:6 nitration mixture
As can be seen from Table 6, dodecylbenzyl ammonium chloride, KLSS-A, PAA and six methines, four ammonium are in, 1:6 nitration mixture
Rate of corrosion is minimum, and concertedness is best.
Claims (4)
1. galvanizing equipment contaminant removing cleaning agent, which is characterized in that formed by the raw material mixture of following weight percent:
Surfactant 0.3-1.2%；Imidazoline inhibitor 0.1-1.2%；Dispersing agent 0.1-0.8%；Auxiliary agent 0.2-0.8%；Oxalic acid
7-8%；Hydrochloric acid 12-14%, surplus are water.
2. surfactant described in is dodecylbenzyl ammonium chloride；Imidazoline inhibitor is amphoteric imidazoline corrosion inhibiter；Point
Powder is polyacrylic acid；Auxiliary agent is hexamethylenetetramine.
3. the galvanizing equipment contaminant removing cleaning agent as described in claim 1, which is characterized in that each raw material component are as follows: surface-active
Agent 0.3%；Imidazoline inhibitor 0.1%；Dispersing agent 0.1%；Auxiliary agent 0.2%；Oxalic acid 8%；Hydrochloric acid 12%, surplus are water.
4. the galvanizing equipment contaminant removing cleaning agent as described in claim 1 or 2, which is characterized in that the equivalent of oxalic acid and hydrochloric acid is dense
Degree is than being 1:6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910622844.2A CN110257178B (en) | 2019-07-11 | 2019-07-11 | Descaling cleaning agent for galvanizing equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910622844.2A CN110257178B (en) | 2019-07-11 | 2019-07-11 | Descaling cleaning agent for galvanizing equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110257178A true CN110257178A (en) | 2019-09-20 |
| CN110257178B CN110257178B (en) | 2021-02-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910622844.2A Active CN110257178B (en) | 2019-07-11 | 2019-07-11 | Descaling cleaning agent for galvanizing equipment |
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| Country | Link |
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| CN (1) | CN110257178B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110735144A (en) * | 2019-09-30 | 2020-01-31 | 上海柯灵展新化工有限公司 | acidic cleaning agent for food factory pipelines and preparation method and application thereof |
| CN113897615A (en) * | 2021-09-30 | 2022-01-07 | 河南省科学院能源研究所有限公司 | Zinc plating corrosion inhibitor in mixed acid medium |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102021590A (en) * | 2010-12-14 | 2011-04-20 | 戴锐 | Metal scale remover and using method thereof |
| CN102021097A (en) * | 2009-09-22 | 2011-04-20 | 秦亚兵 | Cleaning scale-removing agent |
| CN102071416A (en) * | 2011-01-31 | 2011-05-25 | 神华集团有限责任公司 | Preparation and application of chemical derusting cleaning agent |
| CN104277932A (en) * | 2014-09-25 | 2015-01-14 | 苏州长盛机电有限公司 | Scale cleaning agent and preparation method thereof |
| CN105695169A (en) * | 2016-01-19 | 2016-06-22 | 马鞍山纽泽科技服务有限公司 | Anti-scaling agent for water heater |
-
2019
- 2019-07-11 CN CN201910622844.2A patent/CN110257178B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102021097A (en) * | 2009-09-22 | 2011-04-20 | 秦亚兵 | Cleaning scale-removing agent |
| CN102021590A (en) * | 2010-12-14 | 2011-04-20 | 戴锐 | Metal scale remover and using method thereof |
| CN102071416A (en) * | 2011-01-31 | 2011-05-25 | 神华集团有限责任公司 | Preparation and application of chemical derusting cleaning agent |
| CN104277932A (en) * | 2014-09-25 | 2015-01-14 | 苏州长盛机电有限公司 | Scale cleaning agent and preparation method thereof |
| CN105695169A (en) * | 2016-01-19 | 2016-06-22 | 马鞍山纽泽科技服务有限公司 | Anti-scaling agent for water heater |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110735144A (en) * | 2019-09-30 | 2020-01-31 | 上海柯灵展新化工有限公司 | acidic cleaning agent for food factory pipelines and preparation method and application thereof |
| CN113897615A (en) * | 2021-09-30 | 2022-01-07 | 河南省科学院能源研究所有限公司 | Zinc plating corrosion inhibitor in mixed acid medium |
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| Publication number | Publication date |
|---|---|
| CN110257178B (en) | 2021-02-05 |
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