CN1754843A - Descaling agent for industrial cooling circulating water system surface cleaning - Google Patents
Descaling agent for industrial cooling circulating water system surface cleaning Download PDFInfo
- Publication number
- CN1754843A CN1754843A CN 200410066837 CN200410066837A CN1754843A CN 1754843 A CN1754843 A CN 1754843A CN 200410066837 CN200410066837 CN 200410066837 CN 200410066837 A CN200410066837 A CN 200410066837A CN 1754843 A CN1754843 A CN 1754843A
- Authority
- CN
- China
- Prior art keywords
- surface cleaning
- circulating water
- descaling agent
- cooling circulating
- water system
- 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.)
- Pending
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 26
- 238000001816 cooling Methods 0.000 title claims abstract description 19
- 239000003795 chemical substances by application Substances 0.000 title claims abstract description 13
- 238000004140 cleaning Methods 0.000 title claims abstract description 12
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 claims abstract description 22
- BDAGIHXWWSANSR-UHFFFAOYSA-N Formic acid Chemical compound OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 claims abstract description 13
- 235000006408 oxalic acid Nutrition 0.000 claims abstract description 7
- 239000013505 freshwater Substances 0.000 claims abstract description 3
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 claims description 6
- 235000019253 formic acid Nutrition 0.000 claims description 6
- 229940124530 sulfonamide Drugs 0.000 claims description 6
- FDDDEECHVMSUSB-UHFFFAOYSA-N sulfanilamide Chemical compound NC1=CC=C(S(N)(=O)=O)C=C1 FDDDEECHVMSUSB-UHFFFAOYSA-N 0.000 claims description 4
- 230000002000 scavenging effect Effects 0.000 claims description 3
- 125000000565 sulfonamide group Chemical group 0.000 claims description 2
- 239000000126 substance Substances 0.000 abstract description 4
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 abstract 1
- 239000000498 cooling water Substances 0.000 abstract 1
- 239000004615 ingredient Substances 0.000 abstract 1
- 239000002184 metal Substances 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- MIMUSZHMZBJBPO-UHFFFAOYSA-N 6-methoxy-8-nitroquinoline Chemical compound N1=CC=CC2=CC(OC)=CC([N+]([O-])=O)=C21 MIMUSZHMZBJBPO-UHFFFAOYSA-N 0.000 description 1
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 235000011089 carbon dioxide Nutrition 0.000 description 1
- 239000012459 cleaning agent Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 239000003599 detergent Substances 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 235000012204 lemonade/lime carbonate Nutrition 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- NDLPOXTZKUMGOV-UHFFFAOYSA-N oxo(oxoferriooxy)iron hydrate Chemical compound O.O=[Fe]O[Fe]=O NDLPOXTZKUMGOV-UHFFFAOYSA-N 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 235000019600 saltiness Nutrition 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
Landscapes
- Preventing Corrosion Or Incrustation Of Metals (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Abstract
The present pertains to the field of chemical industry, wherein a surface cleaning descaling agent for industrial circulating water systems is disclosed, whose principal ingredients include sulfonic acid amide, aminic acid and oxalic acid. The descaling agent can be used for industrial cooling water circulation systems, and can be used for the descaling and derusting treatment of ships, fresh water device and other water-cooling equipment.
Description
Technical field
The invention belongs to chemical field, relate to a kind of chemical detergent, more specifically, the present invention relates to is a kind of descaling agent for industrial cooling circulating water system surface cleaning.
Background technology
In industrial cooling circulating water system, water coolant evaporates in cooling tower, makes that saltiness increases gradually in the recirculated water, adds that carbonic acid gas is resolved loss in the water in tower, makes that the lime carbonate tendency that fouling is separated out on heat-transfer surface increases in the water.
At present, domestic acidic chemical cleaning agent at industrial cooling circulating water system mainly is to adopt hydrochloric acid, sulfuric acid, nitric acid, ammonium bifluoride etc.These medicaments not only corrodibility strong, remove the poor effect of dirt layer, and mostly be liquid packing, this use, all very inconvenient aspect the transportation, improper use also can bring certain danger.
At the defective of above prior art, the inventor has carried out technological improvement, and through long term studies, development removes and a kind ofly removes rust deposite, incrustation scale is effective, speed is fast, transport stable industrial cooling circulating water system scale remover easy to use, safe.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of descaling agent for industrial cooling circulating water system surface cleaning, and its main component is selected from sulphonamide, formic acid, oxalic acid.
More particularly, descaling agent for industrial cooling circulating water system surface cleaning of the present invention, the prescription of employing is by weight percentage:
Sulphonamide: 40～60%;
Formic acid: 20～30%;
Oxalic acid: 15～32%.
On the other hand, descaling agent for industrial cooling circulating water system surface cleaning of the present invention also can be used for the scale removal, Chu Rust of water cooling equipments such as boats and ships, fresh water device, steam condenser.
Descaling agent for industrial cooling circulating water system surface cleaning suitable addition of the present invention is: possess water meter by system, and a dosage 500-1000mg/L, PH control 4～5, scavenging period is 24～48 hours.
Prescription according to the present invention is prepared, and the outward appearance of the scale remover of acquisition is white or talks yellow powder or crystal; Its total phosphoric acid is (with PO
3 -4Meter) content is greater than 18.0%; PH value (1% aqueous solution) is less than 3.0.
Scale remover of the present invention use and deposit all very convenient safety.Be host with the sulphonamide in the prescription, it is all littler than general mineral acid to corrosion of metal.Oxalic acid is compared for ferric oxide with other organic acid also very strong dissolving power, and it can be used under the lower temperature, yet when being used to clean, can generate settling because the solubleness of the salt that generates such as ironic oxalate and caoxalate etc. is low.Formic acid also has very strong oxidized metal dissolving power, and can play a role at multiple oxidized metal, and corrodibility is little, and is effective.More than three kinds of components after compound preparation, can supply the effect that performance is maximum mutually.
Embodiment
The prescription that the present invention preferably adopts is (weight percent): sulphonamide 50%; Formic acid 25%, oxalic acid 25%.Need not to be dissolved in water, can directly in equipment, add according to certain dosage.
Possess water meter by system, a dosage 500-1000mg/L, PH control 4～5, scavenging period is 24～48 hours.
As a result, disposing, the dirt that the industrial cooling circulating water system pipe surface exists all is cleaned clean and discharges, and reaches the scale removal purpose of expection fully.
Claims (4)
1. a descaling agent for industrial cooling circulating water system surface cleaning is characterized in that, its main component is selected from sulphonamide, formic acid and oxalic acid.
2. descaling agent for industrial cooling circulating water system surface cleaning according to claim 1 is characterized in that, the prescription of employing is by weight percentage:
Sulphonamide: 40～60%;
Formic acid: 20～30%;
Oxalic acid: 15～32%.
3. descaling agent for industrial cooling circulating water system surface cleaning according to claim 1 is characterized in that, described scale remover also can be used for the scale removal, Chu Rust of water cooling equipments such as boats and ships, fresh water device, steam condenser.
4. descaling agent for industrial cooling circulating water system surface cleaning according to claim 1 is characterized in that, possesses water meter by system, and a dosage is 500-1000mg/L, PH control 4～5, and scavenging period is 24～48 hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410066837 CN1754843A (en) | 2004-09-29 | 2004-09-29 | Descaling agent for industrial cooling circulating water system surface cleaning |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410066837 CN1754843A (en) | 2004-09-29 | 2004-09-29 | Descaling agent for industrial cooling circulating water system surface cleaning |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1754843A true CN1754843A (en) | 2006-04-05 |
Family
ID=36688439
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410066837 Pending CN1754843A (en) | 2004-09-29 | 2004-09-29 | Descaling agent for industrial cooling circulating water system surface cleaning |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1754843A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105565518A (en) * | 2015-12-18 | 2016-05-11 | 昆明理工大学 | Composite water quality stabilizer for steelmaking converter turbid circulating water treatment |
| CN110882630A (en) * | 2019-12-02 | 2020-03-17 | 中国海洋石油集团有限公司 | Descaling agent of ceramic ultrafiltration membrane system for treating oily sewage in oil field and preparation method thereof |
-
2004
- 2004-09-29 CN CN 200410066837 patent/CN1754843A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105565518A (en) * | 2015-12-18 | 2016-05-11 | 昆明理工大学 | Composite water quality stabilizer for steelmaking converter turbid circulating water treatment |
| CN110882630A (en) * | 2019-12-02 | 2020-03-17 | 中国海洋石油集团有限公司 | Descaling agent of ceramic ultrafiltration membrane system for treating oily sewage in oil field and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |