CN105152369A - Corrosion and scale inhibitor - Google Patents
Corrosion and scale inhibitor Download PDFInfo
- Publication number
- CN105152369A CN105152369A CN201510551924.5A CN201510551924A CN105152369A CN 105152369 A CN105152369 A CN 105152369A CN 201510551924 A CN201510551924 A CN 201510551924A CN 105152369 A CN105152369 A CN 105152369A
- Authority
- CN
- China
- Prior art keywords
- percent
- acid
- corrosion
- water
- acrylic ester
- 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
Abstract
The invention relates to a corrosion and scale inhibitor which comprises the following components in percentage by weight: 20 to 35 percent of acrylic acid-acrylic ester-phosphonic acid-acrylamide copolymer, 8 to 18 percent of 2-phosphono butane-1,2,4-tricarboxylic acid, 5 to 10 percent of diethylene triamine penta methylene phosphonic acid, 1 to 7 percent of organophosphorus sulfonate acid, 0.1 to 2 percent of styrene-acrylic, 1 to 4 percent of zinc chloride, 0.01 to 0.2 percent of hydrochloric acid and 35 to 55 percent of water. The invention also provides a preparation method of the corrosion and scale inhibitor. According to the corrosion and scale inhibitor disclosed by the invention, the problems that circulating water is easily scaled and corroded in a high-hardness and high-alkalinity operation process can be solved, and pretreatment when a factory needs to replenish water is avoided, so that the cost is reduced; in addition, concentration multiple of the circulating water is improved, and low-phosphorus environmental protection is realized.
Description
Technical field
The invention belongs to industrial circulation water treatment pharmaceutical arts, relate to a kind of corrosion inhibiting and descaling agent.
Background technology
The support of new and high technology stimulates the high speed development of modern industry, and the steady running of production system is the basis ensureing productivity, and industrial circulating cooling water system is a rather important ring in whole system.The water source of northern China mostly is the water of high rigidity, high alkalinity, this just causes whole circulating water system easily serious fouling and corrosion phenomenon to occur in operational process, especially at the heat exchanger section that temperature is higher, serious fouling and corrosion can affect the normal operation of interchanger, the work-ing life of shortening equipment, thus the normal table affecting whole production system runs.Therefore, need to invent a kind of corrosion inhibiting and descaling agent to overcome the problems referred to above.
Summary of the invention
The object of this invention is to provide a kind of corrosion inhibiting and descaling agent, overcome the high rigidity of recirculated water, high alkalinity easily corrodes and the problem of fouling when running.
Another object of the present invention is to provide the preparation method of above-mentioned corrosion inhibiting and descaling agent.
The present invention is achieved through the following technical solutions:
One, a corrosion inhibiting and descaling agent, comprises the following component of components by weight percentage:
Two, according to a preparation method for above-mentioned corrosion inhibiting and descaling agent, comprise the following steps:
(1) by acrylic acid-acrylic ester-phosphonic acids-acrylamide copolymer, 2-phosphonobutane-1,2,4 tricarboxylic acid, diethylene triamine pentamethylene phosphonic, organophosphorus sulfonic acid, cinnamic acrylic ester mixing;
(2) raised temperature to 40 ~ 70 DEG C;
(3) in mixture, add zinc chloride and hydrochloric acid, make up water, keep temperature-resistant, stir, leave standstill and be cooled to room temperature.
Adopt the positively effect of technique scheme: corrosion inhibiting and descaling agent of the present invention can solve the problem of recirculated water easy fouling and corrosion when high rigidity, high alkalinity run, factory is made not need when moisturizing to carry out advanced processing, cost-saving, and improve the cycles of concentration of recirculated water, accomplish low-phosphorous environment-friendly.
Embodiment
Below by embodiment and comparative example, technical scheme of the present invention is described further, but should not be construed as limitation of the present invention:
Embodiment 1
In the present embodiment, each component of corrosion inhibiting and descaling agent is as follows:
The step of preparation method is:
(1) by acrylic acid-acrylic ester-phosphonic acids-acrylamide copolymer, 2-phosphonobutane-1,2,4 tricarboxylic acid, diethylene triamine pentamethylene phosphonic, organophosphorus sulfonic acid, cinnamic acrylic ester mixing;
(2) raised temperature to 50 DEG C;
(3) in mixture, add zinc chloride and hydrochloric acid, make up water, keep temperature-resistant, stir, leave standstill and be cooled to room temperature.
Embodiment 2
In the present embodiment, each component of corrosion inhibiting and descaling agent is as follows:
The step of preparation method is:
(1) by acrylic acid-acrylic ester-phosphonic acids-acrylamide copolymer, 2-phosphonobutane-1,2,4 tricarboxylic acid, diethylene triamine pentamethylene phosphonic, organophosphorus sulfonic acid, cinnamic acrylic ester mixing;
(2) raised temperature to 60 DEG C;
(3) in mixture, add zinc chloride and hydrochloric acid, make up water, keep temperature-resistant, stir, leave standstill and be cooled to room temperature.
Embodiment 3
In the present embodiment, each component of corrosion inhibiting and descaling agent is as follows:
The step of preparation method is:
(1) by acrylic acid-acrylic ester-phosphonic acids-acrylamide copolymer, 2-phosphonobutane-1,2,4 tricarboxylic acid, diethylene triamine pentamethylene phosphonic, organophosphorus sulfonic acid, cinnamic acrylic ester mixing;
(2) raised temperature to 40 DEG C;
(3) in mixture, add zinc chloride and hydrochloric acid, make up water, keep temperature-resistant, stir, leave standstill and be cooled to room temperature.
Embodiment 4
In the present embodiment, each component of corrosion inhibiting and descaling agent is as follows:
The step of preparation method is:
(1) by acrylic acid-acrylic ester-phosphonic acids-acrylamide copolymer, 2-phosphonobutane-1,2,4 tricarboxylic acid, diethylene triamine pentamethylene phosphonic, organophosphorus sulfonic acid, cinnamic acrylic ester mixing;
(2) raised temperature to 70 DEG C;
(3) in mixture, add zinc chloride and hydrochloric acid, make up water, keep temperature-resistant, stir, leave standstill and be cooled to room temperature.
Embodiment 5
In the present embodiment, each component of corrosion inhibiting and descaling agent is as follows:
The step of preparation method is:
(1) by acrylic acid-acrylic ester-phosphonic acids-acrylamide copolymer, 2-phosphonobutane-1,2,4 tricarboxylic acid, diethylene triamine pentamethylene phosphonic, organophosphorus sulfonic acid, cinnamic acrylic ester mixing;
(2) raised temperature to 55 DEG C;
(3) in mixture, add zinc chloride and hydrochloric acid, make up water, keep temperature-resistant, stir, leave standstill and be cooled to room temperature.
Embodiment 6
In the present embodiment, each component of corrosion inhibiting and descaling agent is as follows:
The step of preparation method is:
(1) by acrylic acid-acrylic ester-phosphonic acids-acrylamide copolymer, 2-phosphonobutane-1,2,4 tricarboxylic acid, diethylene triamine pentamethylene phosphonic, organophosphorus sulfonic acid, cinnamic acrylic ester mixing;
(2) raised temperature to 65 DEG C;
(3) in mixture, add zinc chloride and hydrochloric acid, make up water, keep temperature-resistant, stir, leave standstill and be cooled to room temperature.
Embodiment 7
In the present embodiment, each component of corrosion inhibiting and descaling agent is as follows:
The step of preparation method is:
(1) by acrylic acid-acrylic ester-phosphonic acids-acrylamide copolymer, 2-phosphonobutane-1,2,4 tricarboxylic acid, diethylene triamine pentamethylene phosphonic, organophosphorus sulfonic acid, cinnamic acrylic ester mixing;
(2) raised temperature to 45 DEG C;
(3) in mixture, add zinc chloride and hydrochloric acid, make up water, keep temperature-resistant, stir, leave standstill and be cooled to room temperature.
Comparative example 1
The experiment of recirculated water static-state scale inhibition and recirculated water rotary hanging plate corrosion experiment are carried out to the corrosion inhibiting and descaling agent in embodiment 1-7:
Experimental temperature is 80 DEG C, and lacing film material is carbon steel,
Recirculated water calcium hardness is (with CaCO
3meter) be 425.6mg/L, total alkalinity is (with CaCO
3meter) be 678.5mg/L,
With this city corrosion inhibiting and descaling agent for contrast, result is as following table:
As shown above, corrosion inhibiting and descaling agent of the present invention can improve corrosion inhibition rate and scale inhibition performance greatly, the problem of recirculated water easy fouling and corrosion when high rigidity, high alkalinity run can be solved, factory is made not need when moisturizing to carry out advanced processing, cost-saving, and improve the cycles of concentration of recirculated water, accomplish low-phosphorous environment-friendly.
Claims (2)
1. a corrosion inhibiting and descaling agent, is characterized in that: the following component comprising components by weight percentage:
2. a preparation method for corrosion inhibiting and descaling agent according to claim 1, is characterized in that: comprise the following steps:
(1) by acrylic acid-acrylic ester-phosphonic acids-acrylamide copolymer, 2-phosphonobutane-1,2,4 tricarboxylic acid, diethylene triamine pentamethylene phosphonic, organophosphorus sulfonic acid, cinnamic acrylic ester mixing;
(2) raised temperature to 40 ~ 70 DEG C;
(3) in mixture, add zinc chloride and hydrochloric acid, make up water, keep temperature-resistant, stir, leave standstill and be cooled to room temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510551924.5A CN105152369A (en) | 2015-09-02 | 2015-09-02 | Corrosion and scale inhibitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510551924.5A CN105152369A (en) | 2015-09-02 | 2015-09-02 | Corrosion and scale inhibitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105152369A true CN105152369A (en) | 2015-12-16 |
Family
ID=54793497
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510551924.5A Pending CN105152369A (en) | 2015-09-02 | 2015-09-02 | Corrosion and scale inhibitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105152369A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1417138A (en) * | 2001-11-08 | 2003-05-14 | 北京燕山石油化工公司研究院 | Composite scale-inhibiting corrosion inhibitor suitable for reusing ammonia nitrogen containing effluent as circular cooling water |
| CN1618743A (en) * | 2003-11-20 | 2005-05-25 | 中国石油化工股份有限公司北京燕山分公司研究院 | Composite corrosion and scale inhibitor and its application in treating circulating cooling water |
| CN101759301A (en) * | 2008-12-26 | 2010-06-30 | 上海淼清水处理有限公司 | Anti-incrustation corrosion inhibitor for circulating water system with high concentration time and high chloride ion content |
| CN101759300A (en) * | 2008-12-26 | 2010-06-30 | 上海淼清水处理有限公司 | Composite scale and corrosion inhibitor |
| US20110076219A1 (en) * | 2009-09-25 | 2011-03-31 | Cytec Technology Corp. | Preventing or reducing scale in wet-process phosphoric acid production |
-
2015
- 2015-09-02 CN CN201510551924.5A patent/CN105152369A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1417138A (en) * | 2001-11-08 | 2003-05-14 | 北京燕山石油化工公司研究院 | Composite scale-inhibiting corrosion inhibitor suitable for reusing ammonia nitrogen containing effluent as circular cooling water |
| CN1618743A (en) * | 2003-11-20 | 2005-05-25 | 中国石油化工股份有限公司北京燕山分公司研究院 | Composite corrosion and scale inhibitor and its application in treating circulating cooling water |
| CN101759301A (en) * | 2008-12-26 | 2010-06-30 | 上海淼清水处理有限公司 | Anti-incrustation corrosion inhibitor for circulating water system with high concentration time and high chloride ion content |
| CN101759300A (en) * | 2008-12-26 | 2010-06-30 | 上海淼清水处理有限公司 | Composite scale and corrosion inhibitor |
| US20110076219A1 (en) * | 2009-09-25 | 2011-03-31 | Cytec Technology Corp. | Preventing or reducing scale in wet-process phosphoric acid production |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103739093B (en) | For the Ternary polymerization type corrosion inhibiting and descaling agent and preparation method thereof of central air-conditioning recirculated cooling water | |
| CN102815796A (en) | Composite phosphorus-free corrosion and scale inhibitor and its application | |
| CN104058511A (en) | Non-phosphorus composite corrosion and scale inhibitor used for circulating water | |
| CN103539269B (en) | Compound aggregate type corrosion and scale inhibitor and preparation method thereof | |
| CN101700935A (en) | Phosphorus-free corrosion-inhibition antiscalant used for industrial circulation cooling water | |
| CN101302060A (en) | Corrosion and scale inhibitor for industrial recirculated cooling water | |
| CN103030217B (en) | Water conditioning agent and preparation method thereof | |
| CN103420497A (en) | Non-phosphorous corrosion and scale inhibitor containing lignosulfonate and application thereof | |
| CN112047498A (en) | Circulating water phosphorus-free corrosion and scale inhibitor and preparation method thereof | |
| CN102276071A (en) | Phosphorus-free scale and corrosion inhibitor for circulating cooling water treatment | |
| CN103241846A (en) | Composite scale and corrosion inhibitor | |
| CN104230015B (en) | A kind of composite slow release antisludging agent suitable in petrifaction sewage reuse circulation | |
| CN104803494A (en) | Corrosion and scale inhibitor for recirculated cooling water | |
| CN103265126B (en) | Non-phosphorus environment-friendly softening water corrosion inhibitor | |
| CN108996714A (en) | A kind of recirculated cooling water phosphate-free corrosion inhibition antisludging agent | |
| CN103539270B (en) | AA (Acrylic Acid)/BA (Butyl Acrylate)/AMPS (2-acrylamide-2-methylpro panesulfonic acid) ternary phosphate-free polymerized type corrosion and scale inhibitor and preparation method thereof | |
| CN105152369A (en) | Corrosion and scale inhibitor | |
| CN102229618A (en) | Hexamethylenediamine tetramethylene phosphonic acid disodium salt and its production process | |
| CN104528967A (en) | Low-phosphorus high-efficiency scale inhibition and dispersion agent | |
| CN105217806A (en) | Circulating water corrosion inhibitor and application thereof | |
| CN102502976A (en) | High-efficiency scale inhibition and dispersion bactericide and preparation method thereof | |
| CN103819012B (en) | Scale and corrosion inhibitor for high-alkalinity and high-hardness water | |
| CN103523936B (en) | Non-phosphorus corrosion and scale inhibitor for low-hardness water system industrial recycling cooling water | |
| CN106115948A (en) | Recirculated water composite scale corrosion inhibiter | |
| CN103708635B (en) | Scale and corrosion inhibitor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20151216 |