WO2018196031A1 - 低磷环保型复合缓蚀阻垢剂及其制备方法 - Google Patents

低磷环保型复合缓蚀阻垢剂及其制备方法 Download PDF

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WO2018196031A1
WO2018196031A1 PCT/CN2017/083428 CN2017083428W WO2018196031A1 WO 2018196031 A1 WO2018196031 A1 WO 2018196031A1 CN 2017083428 W CN2017083428 W CN 2017083428W WO 2018196031 A1 WO2018196031 A1 WO 2018196031A1
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parts
component
sodium
water
scale inhibitor
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龚彩萍
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龚彩萍
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    • 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
    • C02F5/12—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 nitrogen
    • C02F5/125—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 nitrogen combined with inorganic substances
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/02—Non-contaminated water, e.g. for industrial water supply
    • C02F2103/023—Water in cooling circuits

Definitions

  • the invention relates to a corrosion and scale inhibitor, in particular to a low phosphorus environment-friendly composite corrosion and scale inhibitor and a preparation method thereof.
  • the object of the present invention is to provide a low-phosphorus environment-friendly composite corrosion and scale inhibitor and a preparation method thereof, which solve one or more of the above prior art problems.
  • the low phosphorus environment-friendly composite corrosion and scale inhibitor of the invention has the following composition:
  • component A comprises, by weight: 12-20 parts of sodium polysuccinate, sodium polyaspartate 6 -12 parts, 11-20 parts of water, 2.5-4 parts of isoamyl alcohol, 2-3 parts of imidazoline type corrosion inhibitor;
  • component B comprises, by weight: 10-16 parts of polymaleic acid, water 11 -18 points, 8-17 parts of sodium molybdate.
  • component A comprises, by weight, 15 parts of sodium polyepoxysuccinate, 10 parts of sodium polyaspartate, 12 parts of water, 3 parts of isoamyl alcohol, and an imidazoline type corrosion inhibitor 2.5. Share.
  • component B comprises, by weight, 12 parts of polymaleic acid, 13 parts of water, and 10 parts of sodium molybdate.
  • the oxazoline type corrosion inhibitor is benzotriazole or methylbenzotriazole.
  • the sodium molybdate is zinc chloride or zinc sulfate heptahydrate.
  • the preparation method of the low phosphorus environment-friendly composite corrosion and scale inhibitor of the invention is as follows, comprising the following steps:
  • Preparation solution A sodium polyepoxysuccinate, sodium polyaspartate, isoamyl alcohol, imidazole
  • the porphyrin type corrosion inhibitor is placed in a container and stirred with water, and used;
  • Preparation solution B Put polymaleic acid, sodium molybdate in a container, add water, stir and mix, and set aside;
  • the amount of addition is 50-70 mg/L, and the total phosphorus content of the obtained circulating water is less than 0.5 mg/L, which achieves the comprehensive discharge of national sewage.
  • the first-level standard in the standard "maximum allowable emission concentration of pollutants" can be directly discharged when it is required to be discharged. It is a true low-phosphorus environmentally-friendly slow-acting scale inhibitor.
  • component A comprises, by weight: 15 parts of sodium polyepoxysuccinate, 10 parts of sodium polyaspartate, 12 parts of water, 3 parts of isoamyl alcohol, and 3 parts of imidazoline type corrosion inhibitor; component B includes, by weight, 11 parts of polymaleic acid, 13 parts of water, and 10 parts of sodium molybdate.
  • the oxazoline type corrosion inhibitor is benzotriazole or methylbenzotriazole; sodium molybdate is zinc chloride or zinc sulfate heptahydrate.
  • the preparation method of the low phosphorus environment-friendly composite corrosion and scale inhibitor of the invention is as follows, comprising the following steps:
  • Preparation solution A sodium polyepoxysuccinate, sodium polyaspartate, isoamyl alcohol, imidazoline type corrosion inhibitor in a container, add water, stir and mix;
  • Preparation solution B Put polymaleic acid, sodium molybdate in a container, add water, stir and mix, and set aside;
  • component A comprises, by weight: 15 parts of sodium polyepoxysuccinate, 10 parts of sodium polyaspartate, 12 parts of water, 3 parts of isoamyl alcohol, and 2.5 parts of imidazoline type corrosion inhibitor
  • component B comprises, by weight, 12 parts of polymaleic acid, 13 parts of water, and 12 parts of sodium molybdate.
  • the oxazoline type corrosion inhibitor is benzotriazole or methylbenzotriazole; sodium molybdate is zinc chloride or zinc sulfate heptahydrate.
  • the preparation method of the low phosphorus environment-friendly composite corrosion and scale inhibitor of the invention is as follows, comprising the following steps:
  • Preparation solution A sodium polyepoxysuccinate, sodium polyaspartate, isoamyl alcohol, imidazoline type corrosion inhibitor in a container, add water, stir and mix;
  • Preparation solution B Put polymaleic acid, sodium molybdate in a container, add water, stir and mix, and set aside;
  • component A comprises, by weight: 15 parts of sodium polyepoxysuccinate, 10 parts of sodium polyaspartate, 15 parts of water, 3 parts of isoamyl alcohol, and 2.5 parts of imidazoline type corrosion inhibitor
  • component B comprises, by weight, 12 parts of polymaleic acid, 13 parts of water, and 10 parts of sodium molybdate.
  • the oxazoline type corrosion inhibitor is benzotriazole or methylbenzotriazole; sodium molybdate is zinc chloride or zinc sulfate heptahydrate.
  • the preparation method of the low phosphorus environment-friendly composite corrosion and scale inhibitor of the invention is as follows, comprising the following steps:
  • Preparation solution A sodium polyepoxysuccinate, sodium polyaspartate, isoamyl alcohol, imidazoline type corrosion inhibitor in a container, add water, stir and mix;
  • Preparation solution B Put polymaleic acid, sodium molybdate in a container, add water, stir and mix, and set aside;
  • component A comprises, by weight: 15 parts of sodium polyepoxysuccinate, 10 parts of sodium polyaspartate, 12 parts of water, 3.5 parts of isoamyl alcohol and 2.5 parts of imidazoline type corrosion inhibitor; component B comprises, by weight, 12 parts of polymaleic acid, 13 parts of water, and 10 parts of sodium molybdate.
  • the oxazoline type corrosion inhibitor is benzotriazole or methylbenzotriazole; sodium molybdate is zinc chloride or zinc sulfate heptahydrate.
  • the preparation method of the low phosphorus environment-friendly composite corrosion and scale inhibitor of the invention is as follows, comprising the following steps:
  • Preparation solution A sodium polyepoxysuccinate, sodium polyaspartate, isoamyl alcohol, imidazoline type corrosion inhibitor in a container, add water, stir and mix;
  • Preparation solution B Put polymaleic acid, sodium molybdate in a container, add water, stir and mix, and set aside;
  • component A comprises, by weight: 18 parts of sodium polyepoxysuccinate, 10 parts of sodium polyaspartate, 12 parts of water, 3 parts of isoamyl alcohol and 2.5 parts of imidazoline type corrosion inhibitor; component B comprises, by weight, 12 parts of polymaleic acid, 13 parts of water, and 10 parts of sodium molybdate.
  • the oxazoline type corrosion inhibitor is benzotriazole or methylbenzotriazole; sodium molybdate is zinc chloride or zinc sulfate heptahydrate.
  • the preparation method of the low phosphorus environment-friendly composite corrosion and scale inhibitor of the invention is as follows, comprising the following steps:
  • Preparation solution A sodium polyepoxysuccinate, sodium polyaspartate, isoamyl alcohol, imidazoline type corrosion inhibitor in a container, add water, stir and mix;
  • Preparation solution B Put polymaleic acid, sodium molybdate in a container, add water, stir and mix, and set aside;
  • the inventors have obtained through a large number of experiments that the composite corrosion and scale inhibitor belongs to a low-phosphorus formula, and the total phosphorus content of the circulating cooling water during use is less than 0.5 mg/L, and the sewage does not cause oxidative pollution to the water body. It is an environmentally friendly water stabilizer.
  • the polymer poly(epoxysuccinate), sodium polyaspartate, polymaleic acid and organic phosphate used in this product have good scale inhibition and dispersion properties and can be used for high In the water quality of alkalinity, the concentration of zinc used is less than 3 mg/L, which is less than the national zinc emission standard.
  • the present invention can be used as long as the composite scale inhibitor is directly added to the circulating cooling water, the amount of addition is 50-70 mg / L, the total phosphorus content of the obtained circulating water is less than 0.5 mg / L, It meets the first-level standard in the National Sewage Comprehensive Discharge Standard “The Maximum Allowable Emission Concentration of the Second Kind of Pollutants”. When it is required to discharge, it can be directly discharged. It is a true low-phosphorus environmentally-friendly slow-acting scale inhibitor.

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

Abstract

一种农药用乳化剂及其制备方法，包括组份A和组份B,组份A与组份B的比例为1:1；其中组份A按重量份包括:聚环氧琥珀酸钠12-20份、聚天冬氨酸钠6-12份、水11-20份、异戊醇2.5-4份、咪唑啉型缓蚀剂2-3份；组份B按重量份包括：聚马来酸10-16份、水11-18分、钼酸钠8-17份。由此，在使用时，只要将该复合阻垢剂中的直接加入循环冷却水中即可，加入量为50-70mg/L，所得循环水中的总磷含量小于0.5mg/L，达到国家污水综合排放标准《第二类污染物最高允许排放浓度》中的一级标准，当需要排放时，可以直接排放，是一种真正的低磷环保性缓时阻垢剂。

Description

[根据细则37.2由ISA制定的发明名称]　低磷环保型复合缓蚀阻垢剂及其制备方法 技术领域
本发明涉及缓蚀阻垢剂，尤其涉及一种低磷环保型复合缓蚀阻垢剂及其制备方法。
背景技术
工业循环冷却水在使用过程中，随着其浓缩倍数的提高，对设备的腐蚀和结垢加剧，须加入化学药剂予以处理，这类药剂被称为缓蚀阻垢剂，国外自20世纪30年代在循环水中使用缓蚀阻垢剂以来，水处理剂已由单一的铬系发展到现在的硅系、钼系、磷系、钨系以及全有机系等，循环水的高浓缩倍数运行已促使阻垢剂成为工业水处理剂中发展最快的一个品种，也是当前国内外水处理剂研究和开发的热点，工业水处理剂的初期是使用丹宁、木质素、磺化木质素、磺化丹宁、改性淀粉和羧甲基纤维素等天然有机物质作为分散剂，控制水垢的生成。但其用量大，效果差，在高温下容易分解等缺点也较为明显。
发明内容
本发明的目的是在于提供一种低磷环保型复合缓蚀阻垢剂及其制备方法，解决上述现有技术问题中的一个或者多个。
本发明的低磷环保型复合缓蚀阻垢剂，组成如下：
包括组份A和组份B，组份A与组份B的比例为1∶1；其中组份A按重量份包括：聚环氧琥珀酸钠12-20份、聚天冬氨酸钠6-12份、水11-20份、异戊醇2.5-4份、咪唑啉型缓蚀剂2-3份；所述组份B按重量份包括：聚马来酸10-16份、水11-18分、钼酸钠8-17份。
在一种实施方式中：组份A按重量份包括：聚环氧琥珀酸钠15份、聚天冬氨酸钠10份、水12份、异戊醇3份、咪唑啉型缓蚀剂2.5份。
在一种实施方式中：组份B按重量份包括：聚马来酸12份、水13分、钼酸钠10份。
在一种实施方式中：唑啉型缓蚀剂为苯并三氮唑或甲基苯并三氮唑。在一种实施方式中：钼酸钠为氯化锌或七水硫酸锌。
本发明的低磷环保型复合缓蚀阻垢剂的制备方法如下，包括以下步骤：
①制备溶液A：将聚环氧琥珀酸钠、聚天冬氨酸钠、异戊醇份、咪唑 啉型缓蚀剂置于容器中加水搅拌混合，备用；
②制备溶液B：将聚马来酸、钼酸钠置于容器中加水搅拌混合，备用；
③将上述制备好的溶液A和溶液B混合，温度加热至90摄氏度，持续搅拌20min，最后自然冷却至常温，即制得成品。
本发明在使用时，只要将该复合阻垢剂中的直接加入循环冷却水中即可，加入量为50-70mg/L，所得循环水中的总磷含量小于0.5mg/L，达到国家污水综合排放标准《第；类污染物最高允许排放浓度》中的一级标准，当需要排放时，可以直接排放，是一种真正的低磷环保性缓时阻垢剂。
具体实施方式
下面通过实施例对本发明作进一步详细说明。
实施例1
低磷环保型复合缓蚀阻垢剂，组成如下：
包括组份A和组份B，组份A与组份B的比例为1∶1；其中组份A按重量份包括：聚环氧琥珀酸钠15份、聚天冬氨酸钠10份、水12份、异戊醇3份、咪唑啉型缓蚀剂3份；组份B按重量份包括：聚马来酸11份、水13分、钼酸钠10份。
其中，唑啉型缓蚀剂为苯并三氮唑或甲基苯并三氮唑；钼酸钠为氯化锌或七水硫酸锌。
本发明的低磷环保型复合缓蚀阻垢剂的制备方法如下，包括以下步骤：
①制备溶液A：将聚环氧琥珀酸钠、聚天冬氨酸钠、异戊醇份、咪唑啉型缓蚀剂置于容器中加水搅拌混合，备用；
②制备溶液B：将聚马来酸、钼酸钠置于容器中加水搅拌混合，备用；
③将上述制备好的溶液A和溶液B混合，温度加热至85摄氏度，持续搅拌20min，最后自然冷却至常温，即制得成品。
实施例2
低磷环保型复合缓蚀阻垢剂，组成如下：
包括组份A和组份B，组份A与组份B的比例为1∶1；其中组份A按重量份包括：聚环氧琥珀酸钠15份、聚天冬氨酸钠10份、水12份、异戊醇3份、咪唑啉型缓蚀剂2.5份；组份B按重量份包括：聚马来酸12份、水13分、钼酸钠12份。
其中，唑啉型缓蚀剂为苯并三氮唑或甲基苯并三氮唑；钼酸钠为氯化锌或七水硫酸锌。
本发明的低磷环保型复合缓蚀阻垢剂的制备方法如下，包括以下步骤：
①制备溶液A：将聚环氧琥珀酸钠、聚天冬氨酸钠、异戊醇份、咪唑啉型缓蚀剂置于容器中加水搅拌混合，备用；
②制备溶液B：将聚马来酸、钼酸钠置于容器中加水搅拌混合，备用；
③将上述制备好的溶液A和溶液B混合，温度加热至90摄氏度，持续搅拌20min，最后自然冷却至常温，即制得成品。
实施例3
低磷环保型复合缓蚀阻垢剂，组成如下：
包括组份A和组份B，组份A与组份B的比例为1∶1；其中组份A按重量份包括：聚环氧琥珀酸钠15份、聚天冬氨酸钠10份、水15份、异戊醇3份、咪唑啉型缓蚀剂2.5份；组份B按重量份包括：聚马来酸12份、水13分、钼酸钠10份。
其中，唑啉型缓蚀剂为苯并三氮唑或甲基苯并三氮唑；钼酸钠为氯化锌或七水硫酸锌。
本发明的低磷环保型复合缓蚀阻垢剂的制备方法如下，包括以下步骤：
①制备溶液A：将聚环氧琥珀酸钠、聚天冬氨酸钠、异戊醇份、咪唑啉型缓蚀剂置于容器中加水搅拌混合，备用；
②制备溶液B：将聚马来酸、钼酸钠置于容器中加水搅拌混合，备用；
③将上述制备好的溶液A和溶液B混合，温度加热至95摄氏度，持续搅拌20min，最后自然冷却至常温，即制得成品。
实施例4
低磷环保型复合缓蚀阻垢剂，组成如下：
包括组份A和组份B，组份A与组份B的比例为1∶1；其中组份A按重量份包括：聚环氧琥珀酸钠15份、聚天冬氨酸钠10份、水12份、异戊醇3.5份、咪唑啉型缓蚀剂2.5份；组份B按重量份包括：聚马来酸12份、水13分、钼酸钠10份。
其中，唑啉型缓蚀剂为苯并三氮唑或甲基苯并三氮唑；钼酸钠为氯化锌或七水硫酸锌。
本发明的低磷环保型复合缓蚀阻垢剂的制备方法如下，包括以下步骤：
①制备溶液A：将聚环氧琥珀酸钠、聚天冬氨酸钠、异戊醇份、咪唑啉型缓蚀剂置于容器中加水搅拌混合，备用；
②制备溶液B：将聚马来酸、钼酸钠置于容器中加水搅拌混合，备用；
③将上述制备好的溶液A和溶液B混合，温度加热至90摄氏度，持续搅拌20min，最后自然冷却至常温，即制得成品。
实施例5
低磷环保型复合缓蚀阻垢剂，组成如下：
包括组份A和组份B，组份A与组份B的比例为1∶1；其中组份A按重量份包括：聚环氧琥珀酸钠18份、聚天冬氨酸钠10份、水12份、异戊醇3份、咪唑啉型缓蚀剂2.5份；组份B按重量份包括：聚马来酸12份、水13分、钼酸钠10份。
其中，唑啉型缓蚀剂为苯并三氮唑或甲基苯并三氮唑；钼酸钠为氯化锌或七水硫酸锌。
本发明的低磷环保型复合缓蚀阻垢剂的制备方法如下，包括以下步骤：
①制备溶液A：将聚环氧琥珀酸钠、聚天冬氨酸钠、异戊醇份、咪唑啉型缓蚀剂置于容器中加水搅拌混合，备用；
②制备溶液B：将聚马来酸、钼酸钠置于容器中加水搅拌混合，备用；
③将上述制备好的溶液A和溶液B混合，温度加热至90摄氏度，持续搅拌15min，最后自然冷却至常温，即制得成品。
上述实施例的产品在处理循环冷却水的时候与常规缓蚀阻垢剂处理效果对比试验如下：
Figure PCTCN2017083428-appb-000001
Figure PCTCN2017083428-appb-000002
其中，发明人通过大量的实验得出，本复合缓蚀阻垢剂属于低磷配方，使用过程中循环冷却水的总磷含量小于0.5mg/L其排污水不会对水体造成富氧化污染，是一种环境友好的水质稳定剂，本品所用的聚合物聚环氧琥珀酸钠、聚天冬氨酸钠、聚马来酸、有机磷酸盐均具有良好的阻垢分散性能，可用于高碱度的水质中，锌的使用浓度低于3mg/L，小于国家锌排放标准。
综上所述，本发明在使用时，只要将该复合阻垢剂中的直接加入循环冷却水中即可，加入量为50-70mg/L，所得循环水中的总磷含量小于0.5mg/L，达到国家污水综合排放标准《第二类污染物最高允许排放浓度》中的一级标准，当需要排放时，可以直接排放，是一种真正的低磷环保性缓时阻垢剂。
以上所述仅是本发明的一种实施方式，应当指出，对于本领域普通技术人员来说，在不脱离本发明创造构思的前提下，还可以做出若干相似的变形和改进，这些也应视为本发明的保护范围之内。

Claims (6)

  1. 一种低磷环保型复合缓蚀阻垢剂，其特征在于：包括组份A和组份B,组份A与组份B的比例为1:1；其中所述组份A按重量份包括:聚环氧琥珀酸钠12-20份、聚天冬氨酸钠6-12份、水11-20份、异戊醇2.5-4份、咪唑啉型缓蚀剂2-3份；所述组份B按重量份包括：聚马来酸10-16份、水11-18分、钼酸钠8-17份。
  2. 根据权利要求1所述的一种低磷环保型复合缓蚀阻垢剂，其特征在于：所述组份A按重量份包括：聚环氧琥珀酸钠12-20份、聚天冬氨酸钠6-12份、水11-20份、异戊醇2.5-4份、咪唑啉型缓蚀剂2-3份。
  3. 根据权利要求1所述的一种低磷环保型复合缓蚀阻垢剂，其特征在于：所述组份B按重量份包括：聚马来酸10-16份、水11-18分、钼酸钠8-17份。
  4. 根据权利要求1所述的一种低磷环保型复合缓蚀阻垢剂，其特征在于：所述咪唑啉型缓蚀剂为苯并三氮唑或甲基苯并三氮唑。
  5. 根据权利要求1所述的一种低磷环保型复合缓蚀阻垢剂，其特征在于：所述钼酸钠为氯化锌或七水硫酸锌。
  6. 根据权利要求1-5任一项所述的低磷环保型复合缓蚀阻垢剂的制备方法，其特征在于：包括以下步骤：
    ①制备溶液A：将聚环氧琥珀酸钠、聚天冬氨酸钠、异戊醇份、咪唑啉型缓蚀剂置于容器中加水搅拌混合，备用；
    ②制备溶液B：将聚马来酸、钼酸钠置于容器中加水搅拌混合，备用；
    ③将上述制备好的溶液A和溶液B混合，温度加热至90摄氏度，持续搅拌20min，最后自然冷却至常温，即制得成品。
PCT/CN2017/083428 2017-04-27 2017-05-08 低磷环保型复合缓蚀阻垢剂及其制备方法 WO2018196031A1 (zh)

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