WO2019090520A1 - Metal pipe cleaning liquid and method for preparing same - Google Patents

Metal pipe cleaning liquid and method for preparing same Download PDF

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Publication number
WO2019090520A1
WO2019090520A1 PCT/CN2017/109966 CN2017109966W WO2019090520A1 WO 2019090520 A1 WO2019090520 A1 WO 2019090520A1 CN 2017109966 W CN2017109966 W CN 2017109966W WO 2019090520 A1 WO2019090520 A1 WO 2019090520A1
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WIPO (PCT)
Prior art keywords
parts
fatty alcohol
acid
degreaser
metal pipe
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PCT/CN2017/109966
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French (fr)
Chinese (zh)
Inventor
周长贵
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苏州荣能环保科技有限公司
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Application filed by 苏州荣能环保科技有限公司 filed Critical 苏州荣能环保科技有限公司
Priority to PCT/CN2017/109966 priority Critical patent/WO2019090520A1/en
Priority to CN201780002691.0A priority patent/CN108064317A/en
Publication of WO2019090520A1 publication Critical patent/WO2019090520A1/en

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Classifications

    • 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
    • C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
    • C23G5/00—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents
    • C23G5/02—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents using organic solvents
    • C23G5/028—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents using organic solvents containing halogenated hydrocarbons
    • 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
    • C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
    • C23G5/00—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents
    • C23G5/02—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents using organic solvents
    • C23G5/028—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents using organic solvents containing halogenated hydrocarbons
    • C23G5/02809—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents using organic solvents containing halogenated hydrocarbons containing chlorine and fluorine
    • C23G5/02825—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents using organic solvents containing halogenated hydrocarbons containing chlorine and fluorine containing hydrogen
    • C23G5/02829—Ethanes
    • C23G5/02832—C2H3Cl2F
    • 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
    • C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
    • C23G5/00—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents
    • C23G5/02—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents using organic solvents
    • C23G5/028—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents using organic solvents containing halogenated hydrocarbons
    • C23G5/02854—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents using organic solvents containing halogenated hydrocarbons characterised by the stabilising or corrosion inhibiting additives
    • 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
    • C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
    • C23G5/00—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents
    • C23G5/02—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents using organic solvents
    • C23G5/032—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents using organic solvents containing oxygen-containing compounds

Definitions

  • the invention belongs to the technical field of pipeline cleaning, and in particular relates to a metal pipeline cleaning liquid and a preparation method thereof.
  • a pipe is a device that is connected by a pipe, a pipe coupling, a valve, or the like for conveying a gas, a liquid, or a fluid with solid particles.
  • a pipe a pipe coupling, a valve, or the like for conveying a gas, a liquid, or a fluid with solid particles.
  • the fluid flows from a high pressure portion of the pipeline to a low pressure portion, and can also be transported by the pressure or gravity of the fluid itself.
  • Pipes are used in a wide range of applications, including water supply, drainage, heating, gas supply, long-distance transportation of oil and gas, agricultural irrigation, hydraulic engineering, and various industrial installations.
  • the existing pipeline cleaning agents are mostly solvent-based.
  • the main raw material of common cleaning agents is kerosene.
  • the cleaning power and volatilization speed of kerosene are difficult to meet the needs of current industrial pipelines.
  • the disadvantage of these cleaning agents is that the cleaned pipes are easy to oxidize and blacken, which causes troubles for subsequent processing, especially affecting the processing of precision components, and in the pipeline use process, a large amount of lubricating oil is used, and the lubricating oil has a comparative advantage. Strong adhesion makes the cleaning solution clean.
  • the technical problem mainly solved by the invention is to provide a metal pipe cleaning liquid and a preparation method thereof, which have strong cleaning ability and high speed, can prevent or slow the corrosion of the corrosion of the metal pipe surface by the chemical substance, and prevent the surface of the metal pipe from being oxidized after cleaning.
  • a technical solution adopted by the present invention is to provide a metal pipe cleaning liquid which is prepared from the following raw materials by weight: 2-3 parts of phosphoric acid, 3-4 parts of secondary alkanol sulfate; 2-3 parts of fluorosilicic acid, 5-8 parts of hydroxyethylidene diphosphonic acid, 1-2 parts of fatty alcohol propylene oxide polyether, 2-3 parts of fatty alcohol polyoxyethylene ether, diethylene triamine 10 -15 parts, 8-10 parts of sodium tripolyphosphate, 20-30 parts of degreaser, 2-3 parts of chelating agent and 50-60 parts of deionized water;
  • the ratio of the addition ratio of the phosphoric acid, the secondary alkanol sulfate, the hydroxyethylidene diphosphonic acid and the fluorosilicic acid is 10-15% of the total weight fraction, and the fatty alcohol ring
  • the sum of the ratio of the addition of the oxypropylene polyether and the fatty alcohol polyoxyethylene ether is 3-4% of the total weight fraction.
  • the degreaser is a dichloroethane degreaser, a trichloroethylene degreaser, an isopropanol degreaser or a monofluorodichloroethane degreaser.
  • the chelating agent is a citric acid chelating agent.
  • the preparation method of the metal pipe cleaning liquid is carried out according to the following steps:
  • Step 1 heating the deionized water to a certain temperature, adding hydroxyethylidene diphosphonic acid, fatty alcohol propylene oxide polyether, fatty alcohol polyoxyethylene ether, diethylene triamine, three according to the above parts by weight Sodium polyphosphate, degreaser and chelating agent, and uniformly stirred to prepare a solution;
  • Step 2 Phosphoric acid, secondary alkanol sulfate, fluorosilicic acid and hydroxyethylidene diphosphonic acid are added to the solution prepared in the first step in the above mass fraction, stirred, and cooled to room temperature.
  • the deionized water is heated to 50-80 °C.
  • stirring time in the second step is 1.5-2 hours.
  • the invention has the beneficial effects that the invention adopts phosphoric acid, secondary alkanol sulfate, fluorosilicic acid and hydroxyethylidene diphosphonic acid as corrosion inhibitors, and can form with various metal ions such as iron, copper, aluminum and zinc.
  • a stable complex that prevents or slows the corrosion of corrosive chemicals on the surface of metal pipes and prevents oxidation of the surface of metal pipes after cleaning;
  • the degreasing agent of the invention is a dichloroethane degreaser, a trichloroethylene degreaser, an isopropanol degreaser or a difluorodichloroethane degreaser, so that the oil is loosened, dissolved, emulsified and dispersed, thereby being separated from the surface of the metal pipe.
  • a dichloroethane degreaser a trichloroethylene degreaser, an isopropanol degreaser or a difluorodichloroethane degreaser
  • the chelating agent of the invention is a citric acid chelating agent, which avoids substances harmful to the environment, and is safe and environmentally friendly.
  • a metal pipe cleaning solution is made of the following raw materials by weight: 2-3 parts of phosphoric acid, 3-4 parts of secondary alkyl alcohol sulfate, 2-3 parts of fluorosilicic acid, hydroxyethylidene 5-8 parts of bisphosphonate, 1-2 parts of fatty alcohol propylene oxide polyether, 2-3 parts of fatty alcohol polyoxyethylene ether, 10-15 parts of diethylene triamine, 8-10 parts of sodium tripolyphosphate 20-30 parts of degreasing agent, 2-3 parts of chelating agent and 50-60 parts of deionized water;
  • the ratio of the addition ratio of the phosphoric acid, the secondary alkanol sulfate, the hydroxyethylidene diphosphonic acid and the fluorosilicic acid is 10-15% of the total weight fraction, and the fatty alcohol ring
  • the sum of the ratio of the addition of the oxypropylene polyether and the fatty alcohol polyoxyethylene ether is 3-4% of the total weight fraction.
  • the degreaser is a dichloroethane degreaser, a trichloroethylene degreaser, an isopropanol degreaser or a monofluorodichloroethane degreaser.
  • the chelating agent is a citric acid chelating agent.
  • the preparation method of the metal pipe cleaning liquid is carried out according to the following steps:
  • Step 1 heating the deionized water to a certain temperature, adding hydroxyethylidene diphosphonic acid, fatty alcohol propylene oxide polyether, fatty alcohol polyoxyethylene ether, diethylene triamine, three according to the above parts by weight Sodium polyphosphate, degreaser and chelating agent, and uniformly stirred to prepare a solution;
  • Step 2 Phosphoric acid, secondary alkanol sulfate, fluorosilicic acid and hydroxyethylidene diphosphonic acid are added to the solution prepared in the first step in the above mass fraction, stirred, and cooled to room temperature.
  • the deionized water is heated to 50-80 °C.
  • the stirring time in the second step is 1.5-2 hours.
  • the invention uses phosphoric acid, secondary alkanol sulfate, fluorosilicic acid and hydroxyethylidene diphosphonic acid as corrosion inhibitors, and can form with various metal ions such as iron, copper, aluminum and zinc.
  • a stable complex that prevents or slows the corrosion of corrosive chemicals on the surface of metal pipes and prevents oxidation of the surface of metal pipes after cleaning;
  • the degreasing agent of the invention is a dichloroethane degreaser, a trichloroethylene degreaser, an isopropanol degreaser or a difluorodichloroethane degreaser, so that the oil is loosened, dissolved, emulsified and dispersed, thereby being separated from the surface of the metal pipe.
  • a dichloroethane degreaser a trichloroethylene degreaser, an isopropanol degreaser or a difluorodichloroethane degreaser
  • the chelating agent of the invention is a citric acid chelating agent, which avoids substances harmful to the environment, and is safe and environmentally friendly.

Abstract

A metal pipe cleaning liquid is prepared from the following raw materials in parts by weight: 2-3 parts of phosphoric acid, 3-4 parts of secondary alkanol sulfate, 2-3 parts of fluorosilicic acid, 5-8 parts of hydroxyethylidene diphosphonic acid, 1-2 parts of fatty alcohol-propylene oxide polyether, 2-3 parts of fatty alcohol-polyoxyethylene ether, 10-15 parts of diethylene triamine, 8-10 parts of sodium tripolyphosphate, 20-30 parts of degreaser, 2-3 parts of chelating agent, and 50-60 parts of deionized water; the sum of the addition proportions of the phosphoric acid, the secondary alkanol sulfate, the hydroxyethylidene diphosphonic acid, and the fluorosilicic acid is 10-15% of the total parts by weight; the sum of the addition proportions of the fatty alcohol-propylene oxide polyether and the fatty alcohol-polyoxyethylene ether is 3-4% of the total parts by weight. Also disclosed is a method for preparing the cleaning liquid.

Description

一种金属管道清洗液及其制备方法Metal pipe cleaning liquid and preparation method thereof 技术领域Technical field
本发明属于管道清洗技术领域，特别是涉及一种金属管道清洗液及其制备方法。The invention belongs to the technical field of pipeline cleaning, and in particular relates to a metal pipeline cleaning liquid and a preparation method thereof.
背景技术Background technique
管道是用管子、管子联接件和阀门等连接成的用于输送气体、液体或带固体颗粒的流体的装置。通常，流体经鼓风机、压缩机、泵和锅炉等增压后，从管道的高压处流向低压处，也可利用流体自身的压力或重力输送。管道的用途很广泛，主要用在给水、排水、供热、供煤气、长距离输送石油和天然气、农业灌溉、水力工程和各种工业装置中。A pipe is a device that is connected by a pipe, a pipe coupling, a valve, or the like for conveying a gas, a liquid, or a fluid with solid particles. Usually, after being pressurized by a blower, a compressor, a pump, a boiler, etc., the fluid flows from a high pressure portion of the pipeline to a low pressure portion, and can also be transported by the pressure or gravity of the fluid itself. Pipes are used in a wide range of applications, including water supply, drainage, heating, gas supply, long-distance transportation of oil and gas, agricultural irrigation, hydraulic engineering, and various industrial installations.
但是由于长期的使用，管内的油泥、锈垢固化造成原管径变小；废水中的酸、碱物质易对管道壁产生腐蚀；管道内的异物不定期的清除造成管道堵塞等等，这些问题都影响了管道的正常使用，因此对管道进行清洗，使管道内恢复材质本身表面，有着实质的有意义，它能有效的保证设备的安全和延长设备的使用寿命。However, due to long-term use, the sludge and rust in the pipe are solidified, which causes the original pipe diameter to become small; the acid and alkali substances in the wastewater are easy to corrode the pipe wall; the irregular removal of foreign matter in the pipe causes the pipe to be blocked, etc. Both affect the normal use of the pipeline, so cleaning the pipeline and restoring the surface of the material itself in the pipeline has substantial significance. It can effectively ensure the safety of the equipment and extend the service life of the equipment.
现有管道清洗剂多为溶剂型，常用清洗剂的主要原料为煤油，煤油的清洗力和挥发速度均难以满足目前工业管道管使用的需要。这些清洗剂存在的缺点是，清洗后的管道容易氧化发黑，给后续加工带来麻烦，特别对精密元器件的加工造成影响，而且在管道使用过程中，大量使用润滑油，润滑油具有较强的粘附性，使得清洗液的清洗效果差。The existing pipeline cleaning agents are mostly solvent-based. The main raw material of common cleaning agents is kerosene. The cleaning power and volatilization speed of kerosene are difficult to meet the needs of current industrial pipelines. The disadvantage of these cleaning agents is that the cleaned pipes are easy to oxidize and blacken, which causes troubles for subsequent processing, especially affecting the processing of precision components, and in the pipeline use process, a large amount of lubricating oil is used, and the lubricating oil has a comparative advantage. Strong adhesion makes the cleaning solution clean.
发明内容Summary of the invention
本发明主要解决的技术问题是提供一种金属管道清洗液及其制备方法，清洗能力强、速度快，可以防止或减缓腐蚀的化学物质对金属管道表面的腐蚀，防止清洗后金属管道表面氧化。The technical problem mainly solved by the invention is to provide a metal pipe cleaning liquid and a preparation method thereof, which have strong cleaning ability and high speed, can prevent or slow the corrosion of the corrosion of the metal pipe surface by the chemical substance, and prevent the surface of the metal pipe from being oxidized after cleaning.
为解决上述技术问题，本发明采用的一个技术方案是：提供一种金属管道清洗液，由以下重量份的原料制成：磷酸2-3份、仲烷醇基硫酸盐3-4份、 氟硅酸2-3份、羟基亚乙基二膦酸5-8份、脂肪醇环氧丙烷聚醚1-2份、脂肪醇聚氧乙烯醚2-3份、二亚乙基三胺10-15份、三聚磷酸钠8-10份、脱脂剂20-30份、螯合剂2-3份和去离子水50-60份；In order to solve the above technical problems, a technical solution adopted by the present invention is to provide a metal pipe cleaning liquid which is prepared from the following raw materials by weight: 2-3 parts of phosphoric acid, 3-4 parts of secondary alkanol sulfate; 2-3 parts of fluorosilicic acid, 5-8 parts of hydroxyethylidene diphosphonic acid, 1-2 parts of fatty alcohol propylene oxide polyether, 2-3 parts of fatty alcohol polyoxyethylene ether, diethylene triamine 10 -15 parts, 8-10 parts of sodium tripolyphosphate, 20-30 parts of degreaser, 2-3 parts of chelating agent and 50-60 parts of deionized water;
所述磷酸、所述仲烷醇基硫酸盐、所述羟基亚乙基二膦酸和所述氟硅酸四者添加比例之和占总重量份数的10-15％，所述脂肪醇环氧丙烷聚醚和所述脂肪醇聚氧乙烯醚二者添加比例之和占总重量分数的3-4％。And the ratio of the addition ratio of the phosphoric acid, the secondary alkanol sulfate, the hydroxyethylidene diphosphonic acid and the fluorosilicic acid is 10-15% of the total weight fraction, and the fatty alcohol ring The sum of the ratio of the addition of the oxypropylene polyether and the fatty alcohol polyoxyethylene ether is 3-4% of the total weight fraction.
进一步地说，由以下重量份的原料制成：磷酸3份、仲烷醇基硫酸盐4份、氟硅酸3份、羟基亚乙基二膦酸6份、脂肪醇环氧丙烷聚醚2份、脂肪醇聚氧乙烯醚3份、二亚乙基三胺12份、三聚磷酸钠8份、脱脂剂25份、螯合剂3份和去离子水60份。Further, it is made up of the following raw materials by weight: 3 parts of phosphoric acid, 4 parts of secondary alkyl alcohol sulfate, 3 parts of fluorosilicic acid, 6 parts of hydroxyethylidene diphosphonic acid, and propylene oxide polyether 2 of fatty alcohol. Parts: 3 parts of fatty alcohol polyoxyethylene ether, 12 parts of diethylene triamine, 8 parts of sodium tripolyphosphate, 25 parts of degreaser, 3 parts of chelating agent and 60 parts of deionized water.
进一步地说，所述脱脂剂为二氯乙烷脱脂剂、三氯乙烯脱脂剂、异丙醇脱脂剂或一氟二氯乙烷脱脂剂。Further, the degreaser is a dichloroethane degreaser, a trichloroethylene degreaser, an isopropanol degreaser or a monofluorodichloroethane degreaser.
进一步地说，所述螯合剂为柠檬酸螯合剂。Further, the chelating agent is a citric acid chelating agent.
所述一种金属管道清洗液的制备方法，按照下述步骤进行：The preparation method of the metal pipe cleaning liquid is carried out according to the following steps:
步骤一、将去离子水加热至一定的温度，按上述重量份数加入羟基亚乙基二膦酸、脂肪醇环氧丙烷聚醚、脂肪醇聚氧乙烯醚、二亚乙基三胺、三聚磷酸钠、脱脂剂和螯合剂，搅拌均匀制得溶液；Step 1: heating the deionized water to a certain temperature, adding hydroxyethylidene diphosphonic acid, fatty alcohol propylene oxide polyether, fatty alcohol polyoxyethylene ether, diethylene triamine, three according to the above parts by weight Sodium polyphosphate, degreaser and chelating agent, and uniformly stirred to prepare a solution;
步骤二、将磷酸、仲烷醇基硫酸盐、氟硅酸和羟基亚乙基二膦酸按上述质量分数加入到步骤一制得的溶液中，进行搅拌，并冷却至室温。Step 2. Phosphoric acid, secondary alkanol sulfate, fluorosilicic acid and hydroxyethylidene diphosphonic acid are added to the solution prepared in the first step in the above mass fraction, stirred, and cooled to room temperature.
进一步地说，所述步骤一中将去离子水加热至50-80℃。Further, in the first step, the deionized water is heated to 50-80 °C.
进一步地说，所述步骤二中搅拌时间为1.5-2小时。Further, the stirring time in the second step is 1.5-2 hours.
本发明的有益效果是：本发明以磷酸、仲烷醇基硫酸盐、氟硅酸和羟基亚乙基二膦酸为缓蚀剂，能同铁、铜、铝、锌等多种金属离子形成稳定的络合物，可以防止或减缓腐蚀的化学物质对金属管道表面的腐蚀，防止清洗后金属管道表面氧化；The invention has the beneficial effects that the invention adopts phosphoric acid, secondary alkanol sulfate, fluorosilicic acid and hydroxyethylidene diphosphonic acid as corrosion inhibitors, and can form with various metal ions such as iron, copper, aluminum and zinc. A stable complex that prevents or slows the corrosion of corrosive chemicals on the surface of metal pipes and prevents oxidation of the surface of metal pipes after cleaning;
本发明的脱脂剂为二氯乙烷脱脂剂、三氯乙烯脱脂剂、异丙醇脱脂剂或一氟二氯乙烷脱脂剂，使油污松动、溶解、乳化、分散，从而脱离金属管道表面，完成除油和清洗的全过程，清洗能力强、速度快； The degreasing agent of the invention is a dichloroethane degreaser, a trichloroethylene degreaser, an isopropanol degreaser or a difluorodichloroethane degreaser, so that the oil is loosened, dissolved, emulsified and dispersed, thereby being separated from the surface of the metal pipe. Complete the whole process of degreasing and cleaning, the cleaning ability is strong and the speed is fast;
本发明的螯合剂为柠檬酸螯合剂，避免了对环境产生有危害的物质，安全环保。The chelating agent of the invention is a citric acid chelating agent, which avoids substances harmful to the environment, and is safe and environmentally friendly.
具体实施方式Detailed ways
下面对本发明的较佳实施例进行详细阐述，以使本发明的优点和特征能更易于被本领域技术人员理解，从而对本发明的保护范围做出更为清楚明确的界定。The preferred embodiments of the present invention are described in detail below, so that the advantages and features of the present invention can be more readily understood by those skilled in the art.
实施例：一种金属管道清洗液，本发明由以下重量份的原料制成：磷酸2-3份、仲烷醇基硫酸盐3-4份、氟硅酸2-3份、羟基亚乙基二膦酸5-8份、脂肪醇环氧丙烷聚醚1-2份、脂肪醇聚氧乙烯醚2-3份、二亚乙基三胺10-15份、三聚磷酸钠8-10份、脱脂剂20-30份、螯合剂2-3份和去离子水50-60份；EXAMPLES: A metal pipe cleaning solution, the invention is made of the following raw materials by weight: 2-3 parts of phosphoric acid, 3-4 parts of secondary alkyl alcohol sulfate, 2-3 parts of fluorosilicic acid, hydroxyethylidene 5-8 parts of bisphosphonate, 1-2 parts of fatty alcohol propylene oxide polyether, 2-3 parts of fatty alcohol polyoxyethylene ether, 10-15 parts of diethylene triamine, 8-10 parts of sodium tripolyphosphate 20-30 parts of degreasing agent, 2-3 parts of chelating agent and 50-60 parts of deionized water;
所述磷酸、所述仲烷醇基硫酸盐、所述羟基亚乙基二膦酸和所述氟硅酸四者添加比例之和占总重量份数的10-15％，所述脂肪醇环氧丙烷聚醚和所述脂肪醇聚氧乙烯醚二者添加比例之和占总重量分数的3-4％。And the ratio of the addition ratio of the phosphoric acid, the secondary alkanol sulfate, the hydroxyethylidene diphosphonic acid and the fluorosilicic acid is 10-15% of the total weight fraction, and the fatty alcohol ring The sum of the ratio of the addition of the oxypropylene polyether and the fatty alcohol polyoxyethylene ether is 3-4% of the total weight fraction.
由以下重量份的原料制成：磷酸3份、仲烷醇基硫酸盐4份、氟硅酸3份、羟基亚乙基二膦酸6份、脂肪醇环氧丙烷聚醚2份、脂肪醇聚氧乙烯醚3份、二亚乙基三胺12份、三聚磷酸钠8份、脱脂剂25份、螯合剂3份和去离子水60份。It is made up of the following raw materials by weight: 3 parts of phosphoric acid, 4 parts of secondary alkyl alcohol sulfate, 3 parts of fluorosilicic acid, 6 parts of hydroxyethylidene diphosphonic acid, 2 parts of fatty alcohol propylene oxide polyether, fatty alcohol 3 parts of polyoxyethylene ether, 12 parts of diethylene triamine, 8 parts of sodium tripolyphosphate, 25 parts of degreaser, 3 parts of chelating agent and 60 parts of deionized water.
所述脱脂剂为二氯乙烷脱脂剂、三氯乙烯脱脂剂、异丙醇脱脂剂或一氟二氯乙烷脱脂剂。The degreaser is a dichloroethane degreaser, a trichloroethylene degreaser, an isopropanol degreaser or a monofluorodichloroethane degreaser.
所述螯合剂为柠檬酸螯合剂。The chelating agent is a citric acid chelating agent.
所述一种金属管道清洗液的制备方法，按照下述步骤进行：The preparation method of the metal pipe cleaning liquid is carried out according to the following steps:
步骤一、将去离子水加热至一定的温度，按上述重量份数加入羟基亚乙基二膦酸、脂肪醇环氧丙烷聚醚、脂肪醇聚氧乙烯醚、二亚乙基三胺、三聚磷酸钠、脱脂剂和螯合剂，搅拌均匀制得溶液；Step 1: heating the deionized water to a certain temperature, adding hydroxyethylidene diphosphonic acid, fatty alcohol propylene oxide polyether, fatty alcohol polyoxyethylene ether, diethylene triamine, three according to the above parts by weight Sodium polyphosphate, degreaser and chelating agent, and uniformly stirred to prepare a solution;
步骤二、将磷酸、仲烷醇基硫酸盐、氟硅酸和羟基亚乙基二膦酸按上述质量分数加入到步骤一制得的溶液中，进行搅拌，并冷却至室温。 Step 2. Phosphoric acid, secondary alkanol sulfate, fluorosilicic acid and hydroxyethylidene diphosphonic acid are added to the solution prepared in the first step in the above mass fraction, stirred, and cooled to room temperature.
所述步骤一中将去离子水加热至50-80℃。In the first step, the deionized water is heated to 50-80 °C.
所述步骤二中搅拌时间为1.5-2小时。The stirring time in the second step is 1.5-2 hours.
本发明的工作原理如下：本发明以磷酸、仲烷醇基硫酸盐、氟硅酸和羟基亚乙基二膦酸为缓蚀剂，能同铁、铜、铝、锌等多种金属离子形成稳定的络合物，可以防止或减缓腐蚀的化学物质对金属管道表面的腐蚀，防止清洗后金属管道表面氧化；The working principle of the invention is as follows: the invention uses phosphoric acid, secondary alkanol sulfate, fluorosilicic acid and hydroxyethylidene diphosphonic acid as corrosion inhibitors, and can form with various metal ions such as iron, copper, aluminum and zinc. A stable complex that prevents or slows the corrosion of corrosive chemicals on the surface of metal pipes and prevents oxidation of the surface of metal pipes after cleaning;
本发明的脱脂剂为二氯乙烷脱脂剂、三氯乙烯脱脂剂、异丙醇脱脂剂或一氟二氯乙烷脱脂剂，使油污松动、溶解、乳化、分散，从而脱离金属管道表面，完成除油和清洗的全过程，清洗能力强、速度快；The degreasing agent of the invention is a dichloroethane degreaser, a trichloroethylene degreaser, an isopropanol degreaser or a difluorodichloroethane degreaser, so that the oil is loosened, dissolved, emulsified and dispersed, thereby being separated from the surface of the metal pipe. Complete the whole process of degreasing and cleaning, the cleaning ability is strong and the speed is fast;
本发明的螯合剂为柠檬酸螯合剂，避免了对环境产生有危害的物质，安全环保。The chelating agent of the invention is a citric acid chelating agent, which avoids substances harmful to the environment, and is safe and environmentally friendly.
以上所述仅为本发明的实施例，并非因此限制本发明的专利范围，凡是利用本发明说明书所作的等效结构变换，或直接或间接运用在其他相关的技术领域，均同理包括在本发明的专利保护范围内。 The above is only the embodiment of the present invention, and thus does not limit the scope of the patent of the present invention. Any equivalent structural transformation made by the specification of the present invention, or directly or indirectly applied to other related technical fields, is equally included in the present invention. Within the scope of patent protection of the invention.

Claims (7)

  1. 一种金属管道清洗液，其特征在于：由以下重量份的原料制成：磷酸2-3份、仲烷醇基硫酸盐3-4份、氟硅酸2-3份、羟基亚乙基二膦酸5-8份、脂肪醇环氧丙烷聚醚1-2份、脂肪醇聚氧乙烯醚2-3份、二亚乙基三胺10-15份、三聚磷酸钠8-10份、脱脂剂20-30份、螯合剂2-3份和去离子水50-60份；A metal pipe cleaning liquid characterized by being made of the following raw materials by weight: 2-3 parts of phosphoric acid, 3-4 parts of sec-alkanol sulfate, 2-3 parts of fluorosilicic acid, and hydroxyethylidene 5-8 parts of phosphonic acid, 1-2 parts of fatty alcohol propylene oxide polyether, 2-3 parts of fatty alcohol polyoxyethylene ether, 10-15 parts of diethylene triamine, 8-10 parts of sodium tripolyphosphate, 20-30 parts of degreaser, 2-3 parts of chelating agent and 50-60 parts of deionized water;
    所述磷酸、所述仲烷醇基硫酸盐、所述羟基亚乙基二膦酸和所述氟硅酸四者添加比例之和占总重量份数的10-15％，所述脂肪醇环氧丙烷聚醚和所述脂肪醇聚氧乙烯醚二者添加比例之和占总重量分数的3-4％。And the ratio of the addition ratio of the phosphoric acid, the secondary alkanol sulfate, the hydroxyethylidene diphosphonic acid and the fluorosilicic acid is 10-15% of the total weight fraction, and the fatty alcohol ring The sum of the ratio of the addition of the oxypropylene polyether and the fatty alcohol polyoxyethylene ether is 3-4% of the total weight fraction.
  2. 根据权利要求1所述的一种金属管道清洗液，其特征在于：由以下重量份的原料制成：磷酸3份、仲烷醇基硫酸盐4份、氟硅酸3份、羟基亚乙基二膦酸6份、脂肪醇环氧丙烷聚醚2份、脂肪醇聚氧乙烯醚3份、二亚乙基三胺12份、三聚磷酸钠8份、脱脂剂25份、螯合剂3份和去离子水60份。The metal pipe cleaning liquid according to claim 1, which is prepared from the following raw materials by weight: 3 parts of phosphoric acid, 4 parts of secondary alkyl alcohol sulfate, 3 parts of fluorosilicic acid, and hydroxyethylene 6 parts of bisphosphonate, 2 parts of fatty alcohol propylene oxide polyether, 3 parts of fatty alcohol polyoxyethylene ether, 12 parts of diethylene triamine, 8 parts of sodium tripolyphosphate, 25 parts of degreaser, 3 parts of chelating agent And 60 parts of deionized water.
  3. 根据权利要求1所述的一种金属管道清洗液，其特征在于：所述脱脂剂为二氯乙烷脱脂剂、三氯乙烯脱脂剂、异丙醇脱脂剂或一氟二氯乙烷脱脂剂。The metal pipe cleaning liquid according to claim 1, wherein the degreasing agent is a dichloroethane degreaser, a trichloroethylene degreaser, an isopropanol degreaser or a difluorodichloroethane degreaser. .
  4. 根据权利要求1所述的一种金属管道清洗液，其特征在于：所述螯合剂为柠檬酸螯合剂。A metal pipe cleaning solution according to claim 1, wherein said chelating agent is a citric acid chelating agent.
  5. 根据权利要求1所述的一种金属管道清洗液的制备方法，其特征在于：按照下述步骤进行：The method for preparing a metal pipe cleaning liquid according to claim 1, wherein the following steps are performed:
    步骤一、将去离子水加热至一定的温度，按上述重量份数加入羟基亚乙基二膦酸、脂肪醇环氧丙烷聚醚、脂肪醇聚氧乙烯醚、二亚乙基三胺、三聚磷酸钠、脱脂剂和螯合剂，搅拌均匀制得溶液；Step 1: heating the deionized water to a certain temperature, adding hydroxyethylidene diphosphonic acid, fatty alcohol propylene oxide polyether, fatty alcohol polyoxyethylene ether, diethylene triamine, three according to the above parts by weight Sodium polyphosphate, degreaser and chelating agent, and uniformly stirred to prepare a solution;
    步骤二、将磷酸、仲烷醇基硫酸盐、氟硅酸和羟基亚乙基二膦酸按上述质量分数加入到步骤一制得的溶液中，进行搅拌，并冷却至室温。Step 2. Phosphoric acid, secondary alkanol sulfate, fluorosilicic acid and hydroxyethylidene diphosphonic acid are added to the solution prepared in the first step in the above mass fraction, stirred, and cooled to room temperature.
  6. 根据权利要求5所述的一种金属管道清洗液的制备方法，其特征在于：所述步骤一中将去离子水加热至50-80℃。The method for preparing a metal pipe cleaning solution according to claim 5, characterized in that in the first step, the deionized water is heated to 50-80 °C.
  7. 根据权利要求5所述的一种金属管道清洗液的制备方法，其特征在于： 所述步骤二中搅拌时间为1.5-2小时。 The method for preparing a metal pipe cleaning liquid according to claim 5, wherein: The stirring time in the second step is 1.5-2 hours.
PCT/CN2017/109966 2017-11-08 2017-11-08 Metal pipe cleaning liquid and method for preparing same WO2019090520A1 (en)

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