CN1283673A - Powdered scale-removing agent - Google Patents
Powdered scale-removing agent Download PDFInfo
- Publication number
- CN1283673A CN1283673A CN 00122350 CN00122350A CN1283673A CN 1283673 A CN1283673 A CN 1283673A CN 00122350 CN00122350 CN 00122350 CN 00122350 A CN00122350 A CN 00122350A CN 1283673 A CN1283673 A CN 1283673A
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- Prior art keywords
- sodium
- removing agent
- scale
- urotropine
- powdered
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- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Abstract
A powdered scale-removing agent for boiler, pipeline, etc. contains aminosulfonic acid, sodium borate, sodium tungstate, urotropine, sodium bichromate and ammonium hydrogen fluoride. Its advantages include low corrosion to metal, no pollution and easy application.
Description
The present invention relates to a kind of scale remover.
Scale removal such as existing industrial pipeline boiler are carried out through three steps such as inhibition, pickling, passivation usually, and must use specific equipment to clean by the professional, cost height not only, and security is low, and environment is also had certain pollution.Chinese patent CN1118808A discloses a kind of " scale remover and preparation technology thereof ", the scale remover made from sub-powder of acorn cup and spaonin powder etc. has been described, possess transportation and store advantages such as convenient, that scale removal power is strong, pollution is little, safe in utilization, but its complicated process of preparation, the cost height.
The objective of the invention is to overcome deficiency of the prior art, provide a kind of preparation method easy, cost is low, does not have harm, and is easy to use, free of contamination scale remover.
The object of the present invention is achieved like this:
Powdered scale-removing agent is made up of pickling agent, inhibiter, passivator etc., it is characterized in that the weight percent of each component is:
Thionamic acid 85-95% Sodium Tetraborate 3-5%
Sodium wolframate 0.7-2.7% urotropine 1-3%
Sodium dichromate 99 0.1-1.1% ammonium bifluoride 0.1-2.1%
Mercaptobenzothiazole 0.1-1.1%
The weight proportion of each component is:
Thionamic acid 95% Sodium Tetraborate 3%
Sodium wolframate 0.7% urotropine 1%
Sodium dichromate 99 0.1% ammonium bifluoride 0.1%
Mercaptobenzothiazole 0.1%
The present invention organically combines processes such as pickling, passivation, inhibition, has simplified wash procedure, makes it to be suitable for industry and cleans, and also is suitable for family's metal articles for use scale removal and cleans.The present invention is in cleaning process, and visual cleaning situation increases dosage at any time.
Cleaned equipment through the check of Chemicals technical survey station, Ningxia through the present invention, the result is as follows:
60 ℃ of 3 hours corrosion experiments
Iron and steel＜1 grade corrosion surface, loss of gloss not, no point corrosion
Copper＜1 grade corrosion surface, not loss of gloss
Cast iron＜2 grade corrosion surface, slight loss of gloss, no point corrosion
Aluminium＜2 grade corrosion surface, slight loss of gloss, no point corrosion
The relative molten dirty power 99.6 of hydrochloric acid
(with the contrast of 5% hydrochloric acid)
Under the normal temperature, the corrosion of steel, iron, copper, aluminium all less than 1 grade, or is not had corrosion, brass is not had the dezincify phenomenon, at 60 ℃, corrosion was less than 5 milligrams in 3 hours to aluminium.
In conjunction with the embodiments, the present invention is further described.
Embodiment one:
Thionamic acid 93kg Sodium Tetraborate 3kg
Sodium wolframate 0.7kg urotropine 1kg
Sodium dichromate 99 0.1kg ammonium bifluoride 2.1kg
Mercaptobenzothiazole 0.1kg
This prescription is applicable to the cleaning of boiler and heating system etc.
Embodiment two:
Thionamic acid 87kg Sodium Tetraborate 5kg
Sodium wolframate 2.7kg urotropine 3kg
Sodium dichromate 99 1.1kg ammonium bifluoride 0.1kg
Mercaptobenzothiazole 0.1kg
This prescription is suitable for the cleaning of car, ship water tank etc.
Embodiment three:
Thionamic acid 90kg Sodium Tetraborate 5kg
Sodium wolframate 1.7kg urotropine 1kg
Sodium dichromate 99 1.1kg ammonium bifluoride 0.1kg
Mercaptobenzothiazole 1.1kg
This prescription is applicable to the household electrical appliance of water for cleaning, as kettle, shower, vapour iron etc.
Claims (2)
1. a powdered scale-removing agent is made up of pickling agent, inhibiter, passivator etc., it is characterized in that the weight percent of each component is:
Thionamic acid 85-95% Sodium Tetraborate 3-5%
Sodium wolframate 0.7-2.7% urotropine 1-3%
Sodium dichromate 99 0.1-1.1% ammonium bifluoride 0.1-2.1%
Mercaptobenzothiazole 0.1-1.1%
2. a kind of powdered scale-removing agent according to claim 1 is characterized in that the weight proportion of each component is:
Thionamic acid 95% Sodium Tetraborate 3%
Sodium wolframate 0.7% urotropine 1%
Sodium dichromate 99 0.1% ammonium bifluoride 0.1%
Mercaptobenzothiazole 0.1%
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00122350 CN1100864C (en) | 2000-08-23 | 2000-08-23 | Powdered scale-removing agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00122350 CN1100864C (en) | 2000-08-23 | 2000-08-23 | Powdered scale-removing agent |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1283673A true CN1283673A (en) | 2001-02-14 |
| CN1100864C CN1100864C (en) | 2003-02-05 |
Family
ID=4589205
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00122350 Expired - Fee Related CN1100864C (en) | 2000-08-23 | 2000-08-23 | Powdered scale-removing agent |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1100864C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100392055C (en) * | 2006-04-17 | 2008-06-04 | 甘肃黑马石化工程有限公司 | Solid neutral green chemical cleaning scale remover and its prepn process |
| CN106148019A (en) * | 2016-07-25 | 2016-11-23 | 启东市英辉不锈钢制品有限公司 | A kind of powdery multi-function descaling agent |
| CN106367219A (en) * | 2016-08-11 | 2017-02-01 | 黄平县力星清洗剂生产有限公司 | Cleaning compound used for cleaning concrete mortar dirt and application thereof |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103319008B (en) * | 2012-03-21 | 2015-06-17 | 中国石油化工股份有限公司 | Method for applying desalinated seawater to circulating cooling water system |
-
2000
- 2000-08-23 CN CN 00122350 patent/CN1100864C/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100392055C (en) * | 2006-04-17 | 2008-06-04 | 甘肃黑马石化工程有限公司 | Solid neutral green chemical cleaning scale remover and its prepn process |
| CN106148019A (en) * | 2016-07-25 | 2016-11-23 | 启东市英辉不锈钢制品有限公司 | A kind of powdery multi-function descaling agent |
| CN106367219A (en) * | 2016-08-11 | 2017-02-01 | 黄平县力星清洗剂生产有限公司 | Cleaning compound used for cleaning concrete mortar dirt and application thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1100864C (en) | 2003-02-05 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |