CN106245038A - 一种循环水低温缓蚀剂 - Google Patents

一种循环水低温缓蚀剂 Download PDF

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CN106245038A
CN106245038A CN201610661162.9A CN201610661162A CN106245038A CN 106245038 A CN106245038 A CN 106245038A CN 201610661162 A CN201610661162 A CN 201610661162A CN 106245038 A CN106245038 A CN 106245038A
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phosphonate
corrosion inhibitor
recirculated water
temperature corrosion
dispersant
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陈维忠
李洪社
喻果
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Weihai Xiang Yu Environmental Protection Science And Technology Co Ltd
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Weihai Xiang Yu Environmental Protection Science And Technology Co Ltd
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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
    • C23F11/00—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent
    • C23F11/08—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids
    • C23F11/18—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids using inorganic inhibitors
    • C23F11/184—Phosphorous, arsenic, antimony or bismuth containing compounds
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F5/00—Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
    • C02F5/08—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents
    • C02F5/086—Condensed phosphates
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F5/00—Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
    • C02F5/08—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents
    • C02F5/10—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F5/00—Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
    • C02F5/08—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents
    • C02F5/10—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances
    • C02F5/14—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances containing phosphorus
    • C02F5/145—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances containing phosphorus combined with inorganic substances
    • 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
    • C23F11/00—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent
    • C23F11/08—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids
    • C23F11/10—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids using organic inhibitors
    • C23F11/167—Phosphorus-containing compounds
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2303/00—Specific treatment goals
    • C02F2303/08—Corrosion inhibition

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Inorganic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Preventing Corrosion Or Incrustation Of Metals (AREA)

Abstract

本发明提供一种循环水低温缓蚀剂，含有锌盐、有机膦酸盐、无机膦酸盐、分散剂和去离子水。本发明能够在金属表面与铁离子或氧化铁反应生成一种网状结构的不透性保护膜，能抑制铁的腐蚀，从而起到缓蚀功能。另外，本循环水低温缓蚀剂同时还具有阻垢的性能，能够减少碳酸钙在热交换器管壁上的沉积以及能够减少水中硫酸钙的沉积。

Description

一种循环水低温缓蚀剂
技术领域
本发明属于循环水专用药剂，特别涉及一种用于循环水的低温缓蚀剂。
背景技术
在工业循环水中，制氧循环冷却水系统有着其特殊性，因系统中有空气预冷设备，主要表现在空冷塔和冷冻机组处于低温运行状态，温度为5℃左右，循环冷却水经过该类设备时，水温下降，引起水中离子溶解度减低而从水中析出，附着在设备表面，易导致设备腐蚀，影响换热效果。因此，需要加入缓蚀剂来抑制腐蚀现象。
本发明提供的循环水低温缓蚀剂，能够在金属表面与铁离子或氧化铁反应生成一种网状结构的不透性保护膜，能抑制铁的腐蚀，从而起到缓蚀功能。另外，本循环水低温缓蚀剂同时还具有阻垢的性能，能够减少碳酸钙在热交换器管壁上的沉积以及能够减少水中硫酸钙的沉积。
发明内容
本发明的目的在于提供一种循环水低温缓蚀剂；具有良好的缓蚀效果；对碳酸钙、硫酸钙等多种垢具有优良的抑制作用和良好的分散作用。同时，该缓蚀剂组分简单、原料易得、成本低廉、毒性低。
本发明所采用的技术方案如下：
一种循环水低温缓蚀剂，含有锌盐、有机膦酸盐、无机膦酸盐、分散剂和去离子水。各组分的重量百分比为：
去离子水 30～80%
锌盐 1～10%
无机膦酸盐 1～10%
有机膦酸盐 5～25%
分散剂 10～30%。
所述的锌盐为硫酸锌、氯化锌、氧化锌中的一种或几种。
所述的有机膦酸盐为羟基亚乙基二膦酸、2-膦酸基-1,2,4-三羧酸丁烷、乙二胺四亚甲基膦酸、氨基三亚甲基膦酸中的一种或几种。
所述的无机膦酸盐为膦酸、三聚磷酸钠、六偏磷酸钠中的一种或几种。
所述的分散剂为丙烯酸-2-丙烯酰胺-2-甲基丙磺酸共聚物、羧酸-磺酸-丙烯酸酯三元共聚物、聚环氧琥珀酸、聚天冬氨酸中的一种或几种。
所述的一种循环水低温缓蚀剂的制备方法：在反应釜中加入30 ～ 80％的去离子水；然后向反应釜中加入1～10％的锌盐和无机膦酸盐，混合搅拌30～60分钟；向上述搅拌后的溶液中加入5 ～ 25％的有机膦酸盐和10～30％的分散剂，并搅拌30～60分钟。
实施例一
按重量百分比选取原料
去离子水 70%
硫酸锌 3%
膦酸 5%
羟基亚乙基二膦酸 10%
丙烯酸-2-丙烯酰胺-2-甲基丙磺酸共聚物 12%
所述的一种循环水低温缓蚀剂的制备方法：在反应釜中加入70％的去离子水；然后向反应釜中加入3％的硫酸锌和5％的膦酸，混合搅拌30分钟；向上述搅拌后的溶液中加入10％的羟基亚乙基二膦酸和12％的丙烯酸-2-丙烯酰胺-2-甲基丙磺酸共聚物，并搅拌30分钟。
实施例二
按重量百分比选取原料
去离子水 40%
氯化锌 5%
六偏磷酸钠 10%
氨基三亚甲基膦酸 25%
聚环氧琥珀酸 20%
所述的一种循环水低温缓蚀剂的制备方法：在反应釜中加入40％的去离子水；然后向反应釜中加入5％的氯化锌和10%的六偏磷酸钠，混合搅拌60分钟；向上述搅拌后的溶液中加入25％的氨基三亚甲基膦酸和20％的聚环氧琥珀酸，并搅拌60分钟。
实验一 缓蚀挂片实验
注：挂片面积28cm2；A3酸洗空白质量损失0.0004；温度20℃。
从腐蚀挂片试验数据结果看，实施例1和实施例2在低温时对碳钢的腐蚀率分别为0.006175和0.008560。低温时对碳钢的缓蚀性能上，本发明低温缓蚀剂的缓蚀性能较优异。

Claims (7)

1.一种循环水低温缓蚀剂，含有锌盐、有机膦酸盐、无机膦酸盐、分散剂和去离子水。
2.根据权利要求1所述循环水低温缓蚀剂，各组分的重量百分比为：
去离子水 30～80%
锌盐 1～10%
无机膦酸盐 1～10%
有机膦酸盐 5～25%
分散剂 10～30%。
3.所述的锌盐为硫酸锌、氯化锌、氧化锌中的一种或几种。
4.所述的有机膦酸盐为羟基亚乙基二膦酸、2-膦酸基-1,2,4-三羧酸丁烷、乙二胺四亚甲基膦酸、氨基三亚甲基膦酸中的一种或几种。
5.所述的无机膦酸盐为膦酸、三聚磷酸钠、六偏磷酸钠中的一种或几种。
6.所述的分散剂为丙烯酸-2-丙烯酰胺-2-甲基丙磺酸共聚物、羧酸-磺酸-丙烯酸酯三元共聚物、聚环氧琥珀酸、聚天冬氨酸中的一种或几种。
7.所述的一种循环水低温缓蚀剂的制备方法：在反应釜中加入30 ～ 80％的去离子水；然后向反应釜中加入1～10％的锌盐和无机膦酸盐，混合搅拌30～60分钟；向上述搅拌后的溶液中加入5 ～ 25％的有机膦酸盐和10～30％的分散剂，并搅拌30～60分钟。
CN201610661162.9A 2016-08-13 2016-08-13 一种循环水低温缓蚀剂 Pending CN106245038A (zh)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108423844A (zh) * 2018-03-21 2018-08-21 河南永业环保工程有限公司 一种环保抑制水垢的循环水用软化剂
CN108796506A (zh) * 2018-07-03 2018-11-13 西南石油大学 高温含氧空气泡沫驱注入系统防腐用缓蚀剂组合物
CN111471988A (zh) * 2020-05-22 2020-07-31 德蓝水技术股份有限公司 一种预膜剂及其制备方法
CN115613034A (zh) * 2022-11-15 2023-01-17 鲁西化工集团股份有限公司煤化工一分公司 一种减弱空分装置水冷塔底部腐蚀工艺

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CN102732892A (zh) * 2011-04-11 2012-10-17 中国石油化工股份有限公司 一种金属缓蚀剂组合物和金属缓蚀剂及其应用
CN103708635A (zh) * 2013-12-11 2014-04-09 山东华亚环保科技有限公司 一种阻垢缓蚀剂

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CN1038312A (zh) * 1988-06-03 1989-12-27 山东省海洋仪器仪表研究所 高效钼酸盐复合缓蚀阻垢剂
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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108423844A (zh) * 2018-03-21 2018-08-21 河南永业环保工程有限公司 一种环保抑制水垢的循环水用软化剂
CN108796506A (zh) * 2018-07-03 2018-11-13 西南石油大学 高温含氧空气泡沫驱注入系统防腐用缓蚀剂组合物
CN108796506B (zh) * 2018-07-03 2020-04-21 中国石油大港油田采油工艺研究院 高温含氧空气泡沫驱注入系统防腐用缓蚀剂组合物
CN111471988A (zh) * 2020-05-22 2020-07-31 德蓝水技术股份有限公司 一种预膜剂及其制备方法
CN115613034A (zh) * 2022-11-15 2023-01-17 鲁西化工集团股份有限公司煤化工一分公司 一种减弱空分装置水冷塔底部腐蚀工艺

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Application publication date: 20161221