CN102344203B - High-temperature-resistant scale inhibitor for circulating water - Google Patents
High-temperature-resistant scale inhibitor for circulating water Download PDFInfo
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- CN102344203B CN102344203B CN2010105862270A CN201010586227A CN102344203B CN 102344203 B CN102344203 B CN 102344203B CN 2010105862270 A CN2010105862270 A CN 2010105862270A CN 201010586227 A CN201010586227 A CN 201010586227A CN 102344203 B CN102344203 B CN 102344203B
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F14/00—Inhibiting incrustation in apparatus for heating liquids for physical or chemical purposes
- C23F14/02—Inhibiting incrustation in apparatus for heating liquids for physical or chemical purposes by chemical means
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Abstract
The invention provides a high-temperature-resistant scale inhibitor for circulating water, which is prepared from the following raw materials in parts by weight: 15-25 parts of polyaspartic acid, 5-15 parts of PBTCA (2-phosphonobutane-1,2,4-tricarboxylic acid), 17-24 parts of HEDP (1-hydroxy ethylidene-1,1-diphosphonic acid), 18-26 parts of carboxymethyl sulfosuccinic acid, 3-8 parts of metal passivator and 20-25 parts of water. The high-temperature-resistant scale inhibitor for circulating water is preferably prepared from 20 parts of polyaspartic acid, 10 parts of PBTCA, 20 parts of HEDP, 20 parts of carboxymethyl sulfosuccinic acid, 5 parts of metal passivator and 15 parts of water. The high-temperature-resistant scale inhibitor for circulating water is prepared by the following steps: adding polyaspartic acid and water into a reaction kettle, stirring for 20-30 minutes, adding PBTCA and HEDP, continuing stirring for 15-20 minutes, adding carboxymethyl sulfosuccinic acid and metal passivator while stirring for 10-15 minutes, and stopping stirring to obtain the scale inhibitor. The carboxymethyl sulfosuccinic acid is synthesized by the following steps: adding 50 parts of thioglycollic acid and 50 parts of maleic acid into a reactor, heating in water bath while controlling the temperature at 100 DEG C, adding 1 part of catalyst, and reacting for 3 hours to obtain the carboxymethyl sulfosuccinic acid. The metal passivator adopted by the product is semicarbazide; and the catalyst is resin D301-R.
Description
Technical field
The present invention relates to recirculated water and use Scale inhibitors, especially screened and have the good high temperature resistance and the product of anti-scale inhibition effect, can guarantee that recirculated water normally moves at pyritous.
Background technology
Water resources is one of important energy source of Economic development.In recent years, the contradiction of the quickening of process of industrialization and water resources relative shortage is outstanding day by day, and accounts for the cooling water more than process water 80 % if use recirculated cooling water, will be one of measure of effective conserve water resource.The recirculated cooling water of treatment agent of aborting not only can prevent the corrosion on Equipment fouling but also can reach water-saving dp; But, thereby limited the range of application of water conditioner because the Scale inhibitors composition exists some shortcoming (as under hot conditions, being prone to decomposition etc.) in the water conditioner.
At present, developed in a large number in, the water conditioner and the corresponding Scale inhibitors of use coldcondition under, and in actual production, obtained widespread use.Yet along with development of modern industry; The temperature of heat transferring medium water improves greatly; Existing water conditioner and corresponding Scale inhibitors have been difficult to be suitable for the high temperature cooling water treatment to be needed, like Scale inhibitors scale-inhibiting properties and influence factor in the high-temperature water, with reference to " Beijing University of Chemical Technology's journal " 01 phase of calendar year 2001.It is very necessary that research and development can adapt to the water conditioner and the corresponding Scale inhibitors that use under the hot conditions.
The complexcase that the present invention is directed to high temperature circulation water are researched and developed and are designed, and the resistant to elevated temperatures Scale inhibitors that finally obtains has splendid effect and productive value, for indispensable guarantee has been created in the energy-saving and emission-reduction of enterprise.
Summary of the invention
The objective of the invention is to: a kind of circulating water antisludging agent that can be used under the high-temperature condition is provided, and it not only has the effect of high temperature resistance, also has good scale inhibition effect, belongs to environmentfriendly products.
The objective of the invention is to realize like this: a kind of high temperature resistant Scale inhibitors that is used for recirculated water; Raw material is prepared with parts by weight, is made up of HEDP, 18-26 part ethyloic sulfo-Succinic Acid, 3-8 part metal passivator, 20-25 part water of 15-25 part SAP 73,5-15 part PBTCA, 17-24 part; Its best preparation is made up of 20 parts of SAP 73s, 10 parts of PBTCA, 20 parts of HEDP, 20 parts of ethyloic sulfo-Succinic Acid, 5 parts of metal passivators, 15 parts of water; Through preparing: add SAP 73 and water stirring to reaction kettle, time 20-30 minute, add PBTCA and HEDP again; Continue to stir 15-20 minute; Under agitation add ethyloic sulfo-Succinic Acid and metal passivator, stirred 10-15 minute, evenly promptly stop to stir Scale inhibitors;
Wherein ethyloic sulfo-Succinic Acid is synthetic: add Thiovanic acid and 50 parts of toxilic acids of 50 parts to reactor drum, heating in water bath, controlled temperature are 100 ℃, add 1 part of catalyzer again, reacts 3 hours, must its product.
Described Scale inhibitors, the metal passivator of selecting for use are Urea,amino-.
Described Scale inhibitors, catalyst system therefor are resin D301-R.
Described Scale inhibitors, institute's with medicament and synthetic medicament are the commercially available prod.
Performance of products test of the present invention:
1, estimates the performance of Scale inhibitors according to standard GB/T 16632-2008 " water conditioner performance of antisludging agent mensuration ".
The comparing result of scale-inhibiting properties is seen table 1 under this product and the common Scale inhibitors regular situation.
Can know from last table data: under identical dosage, the scale inhibition effect of high temperature Scale inhibitors of the present invention slightly is better than conventional Scale inhibitors, reaches standard-required.
2, (120 ℃) scale inhibition ability under high-temperature condition
This product and conventional the Scale inhibitors at high temperature comparing result of (120 ℃) scale-inhibiting properties are seen table 2.
Can know from last table data: under identical dosage, the scale inhibition effect of high temperature Scale inhibitors of the present invention will be much better than conventional Scale inhibitors under high-temperature condition, reaches standard-required.
The present invention's synthetic ethyloic sulfo-Succinic Acid voluntarily is that the performance of products performance provides guarantee, and its performance of copolymer parameter is: solid content >=20%; Density 1.10-1.30; PH value (1% aqueous solution) 1.5-3.0; Reach the design requirements of original product, show technical progress.
Embodiment
Control Example of the present invention is described further.
Embodiment
Raw material is prepared with parts by weight, is made up of 25 parts of SAP 73s, 15 parts of PBTCA, 24 parts HEDP, 26 parts of ethyloic sulfo-Succinic Acid, 8 parts of metal passivators, 25 parts of water;
Its best is formulated as 20 parts of SAP 73s, 10 parts of PBTCA, 20 parts of HEDP, 20 parts of ethyloic sulfo-Succinic Acid, 5 parts of metal passivators, 15 parts of water; Through preparing:
A, synthetic ethyloic sulfo-Succinic Acid:
Thiovanic acid ten toxilic acids → ethyloic sulfo-Succinic Acid
Thiovanic acid and 50 parts of toxilic acids of in the there-necked flask that TM, whisking appliance, return line are housed, adding 50 parts, the heating in water bath controlled temperature is 100 ℃, does under the situation of catalyzer reaction at resin D301-R 3 hours, ethyloic sulfo-Succinic Acid;
B, composite:
Under stirring state, add SAP 73 and water, stirs 25 minutes even after; Add the HEDP of PBTCA and part again, stirred 18 minutes, add ethyloic sulfo-Succinic Acid and metal passivator (Urea,amino-) at last; Stirred 10 minutes, and evenly promptly got corrosion inhibitor product.
The checking of production test ground:
The used recirculated water in certain power station is underground water, and its salinity is 1274mg/L, and the temperature of recirculated water when crossing interchanger can reach 110-130 ℃; Add conventional Scale inhibitors; Dosage is 120mg/L, and its interchanger every three months will clean once, have a strong impact on ordinary production; After using this product instead, dosage is reduced to 80mg/L, and the time of cleaning also became cleaning in present 18 months once from original three months, guaranteed the normal use of power plant.
Claims (1)
1. high temperature resistant Scale inhibitors that is used for recirculated water; It is characterized in that: raw material is prepared with parts by weight, is made up of HEDP, 18-26 part ethyloic sulfo-Succinic Acid, 3-8 part metal passivator, 20-25 part water of 15-25 part SAP 73,5-15 part PBTCA, 17-24 part; Through preparing: add SAP 73 and water stirring to reaction kettle, time 20-30 minute, add PBTCA and HEDP again; Continue to stir 15-20 minute; Under agitation add ethyloic sulfo-Succinic Acid and metal passivator, stirred 10-15 minute, evenly promptly stop to stir Scale inhibitors;
Wherein ethyloic sulfo-Succinic Acid is synthetic: add Thiovanic acid and 50 parts of toxilic acids of 50 parts to reactor drum, heating in water bath, controlled temperature are 100 ℃, add 1 part of catalyzer again, reacts 3 hours, must its product.
2, Scale inhibitors according to claim 1 is characterized in that: the metal passivator of selecting for use is a Urea,amino-.
3, Scale inhibitors according to claim 1 is characterized in that: catalyst system therefor is resin D301-R.
4, Scale inhibitors according to claim 1 is characterized in that: institute's with medicament and synthetic medicament are the commercially available prod.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010105862270A CN102344203B (en) | 2010-12-14 | 2010-12-14 | High-temperature-resistant scale inhibitor for circulating water |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105862270A CN102344203B (en) | 2010-12-14 | 2010-12-14 | High-temperature-resistant scale inhibitor for circulating water |
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| CN102344203A CN102344203A (en) | 2012-02-08 |
| CN102344203B true CN102344203B (en) | 2012-11-28 |
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| CN2010105862270A Active CN102344203B (en) | 2010-12-14 | 2010-12-14 | High-temperature-resistant scale inhibitor for circulating water |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105036362A (en) * | 2015-06-30 | 2015-11-11 | 苏州佑君环境科技有限公司 | Low-phosphorous and environmental friendly antisludging agent and preparation method of antisludging agent |
| CN105215266A (en) * | 2015-09-21 | 2016-01-06 | 蚌埠冠宜型材科技有限公司 | A kind of casting Wooden Pattern Making method of high stability |
| US10351453B2 (en) | 2016-04-14 | 2019-07-16 | Nch Corporation | Composition and method for inhibiting corrosion |
| KR102506078B1 (en) * | 2017-06-27 | 2023-03-07 | 엔씨에이취 코오포레이션 | Compositions and methods for inhibiting corrosion and scale |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1323750A (en) * | 2001-06-19 | 2001-11-28 | 华东理工大学 | Composite water treating agent with polyasparagic acid as main component |
| CN1743282A (en) * | 2004-08-31 | 2006-03-08 | 中国石化北京燕化石油化工股份有限公司 | Low-phosphorus composite antiincrustation corrosion inhibitor and its use for water treatment |
| CN1868924A (en) * | 2005-05-25 | 2006-11-29 | 北京化工大学 | Trielement synergistic corrosion inhibitor |
| CN101700937A (en) * | 2009-11-14 | 2010-05-05 | 深圳市南峰水处理服务有限公司 | Composite scale inhibitor |
-
2010
- 2010-12-14 CN CN2010105862270A patent/CN102344203B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1323750A (en) * | 2001-06-19 | 2001-11-28 | 华东理工大学 | Composite water treating agent with polyasparagic acid as main component |
| CN1743282A (en) * | 2004-08-31 | 2006-03-08 | 中国石化北京燕化石油化工股份有限公司 | Low-phosphorus composite antiincrustation corrosion inhibitor and its use for water treatment |
| CN1868924A (en) * | 2005-05-25 | 2006-11-29 | 北京化工大学 | Trielement synergistic corrosion inhibitor |
| CN101700937A (en) * | 2009-11-14 | 2010-05-05 | 深圳市南峰水处理服务有限公司 | Composite scale inhibitor |
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Address after: 830013 Urumqi high tech Zone (new city) North Industrial Park, blue sky road, No. 216, No. Patentee after: DELAND WATER TECHNOLOGY Co.,Ltd. Address before: 830013, 216, Lantian Road, North Industrial Zone, hi tech Zone, the Xinjiang Uygur Autonomous Region, Urumqi Patentee before: XINJIANG DELAND Co.,Ltd. |
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