CN1160847A - Organic anti-scale corrosion inhibitor and its compounding process - Google Patents
Organic anti-scale corrosion inhibitor and its compounding process Download PDFInfo
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- CN1160847A CN1160847A CN 96118921 CN96118921A CN1160847A CN 1160847 A CN1160847 A CN 1160847A CN 96118921 CN96118921 CN 96118921 CN 96118921 A CN96118921 A CN 96118921A CN 1160847 A CN1160847 A CN 1160847A
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- corrosion inhibitor
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- Preventing Corrosion Or Incrustation Of Metals (AREA)
Abstract
The organic anti-scale corrosion inhibitor is compounded with polymaleic anhydride of organic polyhydroxylate and sodium ethylenediamine tetramethylene phosphonate of organic phosphonate as main component and dodecylacetoxyamine and inorganic alkali as synergist. With obvious anti-scale and corrosion-inhibiting effect, and being suitable for various water quality and boilers, the said anti-scale corrosion inhibitor is used for water treatment alone. Even if in the case of high concentration and low sewage exhaust rate, water in boiler will not produce foam and effervescene.
Description
Organic anti-scale corrosion inhibitor of the present invention and compound method belong to chemical field, relate in particular to a kind of water treating agent for boilers.
In medium hardness water-hard water areas, the water quality salt content is higher, existingly the former hydromining of boiler is added the method that method such as inorganic medicament is handled in the softening and pot with pot extracellular sodium ion interchanger secondary, has following problems: the former equipment purchasing expense height, complicated operation, equipment availability is low, easily causes resin cation to pollute, and regeneration saline solution concentration is wayward, can not remove the basicity in the unboiled water, heat loss is bigger, causes environmental pollution, and the cycle water consumption is big; The latter increases pot water salt content, influences steam quality, and formation secondary incrustation scale is detained at the position of precipitability grain slag water Cycle Difference in pot of generation, the blowdown rate height, and heat loss is big, the cost of water treatment height, boiler can not be accomplished vimala operation.
, also more and more higher at boiler to the requirement of boiler water quality to today that modernization, high parameter, big capacity direction develop.How to guarantee boiler safety, economical operation, energy-saving and cost-reducing, the protection environment is the task of top priority that faces, and the present invention i.e. purpose and making for this reason.
Selecting more efficiently method for treating water is the key that realizes above-mentioned purpose, technical program of the present invention lies in:
1 selects organic polycarboxylate and organic phosphonate as the pot water treatment agent, and the former condenses and peptizaiton by tool, the lattice distortion, and regeneration is from the release film effect; Latter's tool chelation is opened and civilian effect, the crystal distortion.The anticorrosion-antiscaling property that the two equal tool is good.
HPMA and the ethylene diamine tetra methylene phosphonic acid sodium in the organic phosphonate in the organic polycarboxylate of 2 selections are the Main Ingredients and Appearance of anti-incrustation corrosion inhibitor of the present invention.
3 are aided with dodecyl acetate amine and inorganic base as the scale inhibitor synergist.
Because adopt above technical scheme, the present invention can reach following technical-economic index:
Scale inhibition performance＞90% inhibition efficiency＞98% concentration rate, 10 blowdown rates＜5%
Pot alkalinity of water pH value meets the suitable water quality of 0.6 yuan of/ton water of GB1576-93 standard dosage 5ppm disposal cost, boiler type scope is wide.Can be used for water treatment separately, not need other assistant medicament.Energy-conservation, water saving, reduce environmental pollution, easy to operate, cost is low.
Fig. 1 is a process flow diagram of the present invention
Below in conjunction with Fig. 1 in detail embodiment is described in detail.
Handle 10M
3Water needed raw material, consumption and compound method:
1 prepared and diluted liquid:
1. prepare 40000～60000ppm HPMA dilution: accurately pipette technical pure HPMA 68.7～103.1ml, be diluted to 1000ml with pure water.
2. prepare 40000～60000ppm ethylene diamine tetra methylene phosphonic acid sodium dilution: accurately pipette technical pure ethylene diamine tetra methylene phosphonic acid sodium 108.3～162.5ml, be diluted to 1000ml with pure water.
2 preparation mixed liquors:
40～400 g NaOH with the dissolving of 1000～1500ml pure water, in the cooling back immigration plastic containers, are added above-mentioned HPMA dilution of 500～800ml and the above-mentioned ethylene diamine tetra methylene phosphonic acid sodium of 200～500ml dilution, mixing.
3 preparation hot-water boiler corrosion inhibiter:
Above-mentioned mixed liquor is diluted to 5000ml with pure water is finished product.
4 manufacture mixture:
Take by weighing edible soda ash 1000～2200g, caustic soda 40～200g, the two mix is stirred, and in the dilution and the above-mentioned ethylene diamine tetra methylene phosphonic acid sodium of the 200～500ml dilution of the above-mentioned HPMA of 500～800ml slowly added soda ash and caustic soda in the spray mode the mixture and fully stirring makes it even simultaneously.
5 preparation anti-incrustation corrosion inhibitors:
Said mixture is placed die for molding → blowing half an hour → demoulding → dry up → pack → finished product.
Its usage is as follows:
| Classification | Be suitable for water quality | Dosage |
| The hot-water boiler corrosion inhibiter | Hardness≤6mmol/l PH 〉=7 | 500ml/ ton water |
| Anti-incrustation corrosion inhibitor | Hardness≤6mmol/l PH 〉=7 | 150g/ ton water |
Claims (3)
1 one kinds of organic anti-scale corrosion inhibitors, with organic polycarboxylate and organic phosphonate is Main Ingredients and Appearance, it is formulated to be aided with two kinds of scale inhibitor synergist, it is characterized in that: organic polycarboxylate of selecting for use is a HPMA, and organic phosphonate is an ethylene diamine tetra methylene phosphonic acid sodium.
2 organic anti-scale corrosion inhibitors as claimed in claim 1 is characterized in that: the scale inhibitor synergist is dodecyl acetate amine and inorganic base.
3 organic anti-scale corrosion inhibitors as claimed in claim 1 is characterized in that: the method for preparation is
(1) preparation HPMA dilution, its concentration is 40000～60000ppm;
(2) preparation ethylene diamine tetra methylene phosphonic acid sodium dilution, its concentration is 40000～60000ppm;
(3) preparation soda ash, caustic soda, HPMA, ethylene diamine tetra methylene phosphonic acid sodium mixture, the 4th, with 1000～2200g: 40～200g: 500～800ml: 200: the ratio of 500ml is mixed;
(4) moulding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96118921 CN1064752C (en) | 1996-12-20 | 1996-12-20 | Organic anti-scale corrosion inhibitor and its compounding process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96118921 CN1064752C (en) | 1996-12-20 | 1996-12-20 | Organic anti-scale corrosion inhibitor and its compounding process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1160847A true CN1160847A (en) | 1997-10-01 |
| CN1064752C CN1064752C (en) | 2001-04-18 |
Family
ID=5125421
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96118921 Expired - Fee Related CN1064752C (en) | 1996-12-20 | 1996-12-20 | Organic anti-scale corrosion inhibitor and its compounding process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1064752C (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100385040C (en) * | 2005-01-21 | 2008-04-30 | 杜德明 | Antiscaling corrosion inhibitor of boiler and use thereof |
| CN103922491A (en) * | 2014-03-25 | 2014-07-16 | 潍坊格蓝电力环保科技有限公司 | Energy-saving scale inhibiting and removing anticorrosion compound medicament for steam boiler and preparation method of medicament |
| CN108529765A (en) * | 2017-03-01 | 2018-09-14 | 廊坊明泉化工建材有限公司 | A kind of petroleum refining enterprise boiler and drum scale inhibitor special and application thereof |
| CN110818103A (en) * | 2019-11-20 | 2020-02-21 | 德蓝水技术股份有限公司 | Low-pressure boiler scale and corrosion inhibitor and preparation method thereof |
| CN112251757A (en) * | 2020-09-15 | 2021-01-22 | 深圳市崇辉表面技术开发有限公司 | Protective water and preparation method thereof |
-
1996
- 1996-12-20 CN CN 96118921 patent/CN1064752C/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100385040C (en) * | 2005-01-21 | 2008-04-30 | 杜德明 | Antiscaling corrosion inhibitor of boiler and use thereof |
| CN103922491A (en) * | 2014-03-25 | 2014-07-16 | 潍坊格蓝电力环保科技有限公司 | Energy-saving scale inhibiting and removing anticorrosion compound medicament for steam boiler and preparation method of medicament |
| CN108529765A (en) * | 2017-03-01 | 2018-09-14 | 廊坊明泉化工建材有限公司 | A kind of petroleum refining enterprise boiler and drum scale inhibitor special and application thereof |
| CN110818103A (en) * | 2019-11-20 | 2020-02-21 | 德蓝水技术股份有限公司 | Low-pressure boiler scale and corrosion inhibitor and preparation method thereof |
| CN112251757A (en) * | 2020-09-15 | 2021-01-22 | 深圳市崇辉表面技术开发有限公司 | Protective water and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1064752C (en) | 2001-04-18 |
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