CN104071906B - High-efficiency composite scale corrosion inhibitor - Google Patents
High-efficiency composite scale corrosion inhibitor Download PDFInfo
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- CN104071906B CN104071906B CN201410113749.7A CN201410113749A CN104071906B CN 104071906 B CN104071906 B CN 104071906B CN 201410113749 A CN201410113749 A CN 201410113749A CN 104071906 B CN104071906 B CN 104071906B
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Abstract
A kind of high-efficiency composite scale corrosion inhibitor is made by weight percentage primarily of following component: 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid 16 ~ 20 parts, sodium lignosulfonate 10 ~ 15 parts, benzotriazole 3 ~ 5 parts, methylsulfonic acid 2 ~ 5 parts, poly-epoxy succinic acid 5 ~ 8 parts, sodium wolframate 6 ~ 9 parts, thiocarbamide 2 ~ 5 parts, 7 ~ 12 parts, tensio-active agent, deionized water 30 ~ 40 parts.The present invention has stable chemical nature in water, not the feature such as facile hydrolysis.Its sodium lignosulfonate has the compound formulation of good associated treatment effect, can effectively prevent incrustation scale, formation that microorganism glues body, adds acid restrainer thiocarbamide, greatly reduces acid system to the corrosion of porcelain, stainless steel, metallic surface; 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid can form stable complex compound with the many kinds of metal ions such as iron, copper, zinc, can the oxide compound on dissolution of metals surface.Present invention improves the deficiency of existing Scale inhibitors, the good scale inhibition effect of tool the obvious threshold effect of tool.
Description
Technical field
The present invention relates to a kind of anti-incrustation corrosion inhibitor, particularly a kind of high-efficiency composite scale corrosion inhibitor.
Background technology
The Scale inhibitors be applied the earliest in water treatment approximately will calculate polymeric phosphate.Polymeric phosphate, except having scale effect, also has corrosion inhibition concurrently.But its shortcoming is facile hydrolysis is orthophosphoric acid salt, if control improper, original not too serious calcium carbonate scale problem can be made to change very serious calcium phosphate scale problem into.The sixties in 20th century organic phosphoric acid (salt) Scale inhibitors appearance, show that in water, the mitigation and antiscaling technology of calcium carbonate achieves breakthrough progress.Also the ultralow chromium treatment formulations of recirculated cooling water is made to be applied.This ultralow chromium formula uses in the pH value range of 7.5-8.5.The utilization of high ph-values makes to be down to 5-10mg/L to the requirement of the chromate amount for inhibition from the 15-25mg/L of traditional chromium-phosphorus-zinc formula, significantly reduces the disadvantageous effect to environment.Why can do like this, be because the application of organic phospho acid (salt) Scale inhibitors, make in water, to cause dirty salt calcium carbonate obtains control deposition in the cathodic area of metallic surface.This calcium carbonate controlledly deposited, serves the effect of cathodic corrosion inhibitor.
The application of organic phospho acid (salt) Scale inhibitors, also makes this phosphorus system basic treatment formula of recirculated cooling water poly-phosphate-organic phospho acid (salt)-polyacrylic acid (salt) be used widely.But in existing composite water conditioner, due to the unsuitable composite and effect of creating antagonism of each component, cause effect to reduce or the phenomenon lost happens occasionally, the increasing to such an extent as to cost of the consumption of water body medicament inferior increases obviously.And for water bodys inferior such as calcium sulfate scale and barium sulfate scale, calcium magnesium silicate, ironic hydroxide dirt, zinc hydroxide are dirty, then also there is no so specific Scale inhibitors in addition at present, due to medicament long-term storage, run into the unfavorable factors such as oxygen, moisture, each component interaction, the drug effect of composite water conditioner can be scattered and disappeared gradually.
Summary of the invention
The object of the invention is to provide a kind of high-efficiency composite scale corrosion inhibitor, become assignment system unreasonable to solve existing anti-incrustation corrosion inhibitor, wide spectrum, water body reagent cost inferior do not increase obviously, the water body poor effect inferior such as, calcium sulfate scale dirty to calcium magnesium silicate, ironic hydroxide dirt, zinc hydroxide and barium sulfate scale, the technical problem such as should not to put for a long time.
For solving the problems of the technologies described above, technical scheme of the present invention is: a kind of high-efficiency composite scale corrosion inhibitor, and this anti-incrustation corrosion inhibitor is made by weight percentage primarily of following component:
1-Hydroxy Ethylidene-1,1-Diphosphonic Acid 10 ~ 15 parts, sodium lignosulfonate 10 ~ 15 parts, benzotriazole 3 ~ 5 parts, methylsulfonic acid 2 ~ 5 parts, poly-epoxy succinic acid 5 ~ 8 parts, sodium wolframate 6 ~ 9 parts, thiocarbamide 2 ~ 5 parts, 7 ~ 12 parts, tensio-active agent, deionized water 30 ~ 40 parts.
As preferably, described tensio-active agent is one or several mixtures of octadecyl amine hydrochloride, dioctadecylamine hydrochloride, stearyl dimethyl benzyl ammonium chloride, palmityl trimethyl ammonium chloride, dodecyl dimethyl phenyl bromo-phosphonium.
In the present invention's formula, containing phenolic hydroxyl group and carboxyl on its structural unit of sodium lignosulfonate, can insoluble protein complex be generated, be used for controlling suspended substance and iron dirt, there is dispersive ability.Being a kind of dispersion agent and integrated agent, is also a kind of inhibiter.In circulating water treatment agent, utilize this product and the complexing action of zinc, the zinc in water is laid in, can constantly provide a certain amount of zine ion, suppress the corrosion of water system.
Benzotriazole can stabilizing water quality, suppress the corrosion of water system.
Acid restrainer thiocarbamide, greatly reduces acid system to the corrosion of porcelain, stainless steel, metallic surface, is conducive to keeping device crust, cleaned any surface finish can be made as newly.
1-Hydroxy Ethylidene-1,1-Diphosphonic Acid is a kind of organophosphorus acids anti-incrustation corrosion inhibitor, can form stable complex compound with the many kinds of metal ions such as iron, copper, zinc, can the oxide compound on dissolution of metals surface.1-Hydroxy Ethylidene-1,1-Diphosphonic Acid still can play good corrosion-mitigation scale-inhibition effect at 250 DEG C, and still very stable at a high ph, not facile hydrolysis, not easily decomposes under general light and heat condition.Comparatively other organic phosphoric acid (salt) is good for resistance to acids and bases, chlorine-resistant oxidation susceptibility.1-Hydroxy Ethylidene-1,1-Diphosphonic Acid can belong to ion with underwater gold, especially calcium ion forms six annulus inner complexs, thus the good scale inhibition effect of 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid tool the obvious threshold effect of tool, when with compound uses such as the benzotriazole in the scope of the invention, poly-epoxy succinic acid, sodium wolframates, show desirable synergistic effect.
Also can the material of remarkable reduction table (boundary) surface tension when very low concentrations even if tensio-active agent is a class.Along with going deep into of Surfactant research, can significantly change table (boundary) surface properties or the material of character that is related to this, that derive from thus as long as to it is generally acknowledged at present under low concentration, tensio-active agent category can be incorporated into.No matter which kind of tensio-active agent, its molecular structure is formed by two portions.One end of molecule is the hydrophobic group of non-pole oleophylic, sometimes also referred to as oleophilic group; The other end of molecule is the hydrophilic group of polar hydrophilic, sometimes also referred to as lipophobic group or be called hydrophilic head visually.Two class formations and the diametrically opposite molecular fragment of performance or group divide the two ends that are in same molecule and are connected with chemical bond, define a kind of structure of asymmetric, polarity, thus imparting such particular molecule not only hydrophilic, but also oleophylic, is not just again the characteristic of overall hydrophilic or oleophylic.This peculiar structure of tensio-active agent is referred to as " amphiphilic structure " (amphiphilicstructure) usually, and thus surfactant molecule is also often referred to as " parents' molecule ".What the present invention adopted is cats product.
The each component of the present invention plays synergy, has scale inhibition, inhibition lasting medicine, efficient, stable chemical nature, not facile hydrolysis etc., the low feature of cost in water.It is better to water body effects inferior such as calcium magnesium silicate, ironic hydroxide dirt, dirty, the calcium sulfate scale of zinc hydroxide and barium sulfate scales, be applicable to Different Waters scale inhibitor.This invention is applied in the water system such as boiler, pipeline, and its Heat stability is good even still keeps good dispersing property at 250 DEG C, and scale inhibition, corrosion inhibition are good.And in poor-quality water, disperse hydrous oxide and organic dirt etc. also very effective.Can effectively prevent incrustation scale, formation that microorganism glues body, the thus good scale inhibition effect of tool the obvious threshold effect of tool.
Embodiment
Embodiment 1: by mass percentage by 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid 10 parts, sodium lignosulfonate 10 parts, benzotriazole 3 parts, methylsulfonic acid 5 parts, succsinic acid 8 parts, sodium wolframate 9 parts, thiocarbamide 5 parts, 7 parts, tensio-active agent (dodecyl dimethyl phenyl bromo-phosphonium), deionized water 30 parts carries out compound preparation, stirring at normal temperature, until all dissolve, then filtered by 300 mesh filter screens, obtained finished product.
Embodiment 2: by mass percentage by 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid 12 parts, sodium lignosulfonate 13 parts, benzotriazole 4 parts, methylsulfonic acid 4 parts, succsinic acid 7 parts, sodium wolframate 8 parts, thiocarbamide 4 parts, 10 parts, tensio-active agent (dodecyl dimethyl phenyl bromo-phosphonium), deionized water 30 parts carries out compound preparation, stirring at normal temperature, until all dissolve, then filtered by 300 mesh filter screens, obtained finished product.
Embodiment 3: by mass percentage by 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid 13 parts, sodium lignosulfonate 11 parts, benzotriazole 4 parts, methylsulfonic acid 2 parts, succsinic acid 5 parts, sodium wolframate 7 parts, thiocarbamide 3 parts, 8 parts, tensio-active agent (dioctadecylamine hydrochloride), deionized water 30 parts carries out compound preparation, stirring at normal temperature, until all dissolve, then filtered by 300 mesh filter screens, obtained finished product.
Embodiment 4: by mass percentage by 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid 14 parts, sodium lignosulfonate 12 parts, benzotriazole 3 parts, methylsulfonic acid 3 parts, succsinic acid 6 parts, sodium wolframate 6 parts, thiocarbamide 4 parts, 10 parts, tensio-active agent (octadecyl amine hydrochloride), deionized water 30 parts carries out compound preparation, stirring at normal temperature, until all dissolve, then filtered by 300 mesh filter screens, obtained finished product.
Embodiment 5: by mass percentage by 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid 15 parts, sodium lignosulfonate 15 parts, benzotriazole 5 parts, methylsulfonic acid 2 parts, succsinic acid 5 parts, sodium wolframate 8 parts, thiocarbamide 2 parts, 12 parts, tensio-active agent (stearyl dimethyl benzyl ammonium chloride), deionized water 30 parts carries out compound preparation, stirring at normal temperature, until all dissolve, then filtered by 300 mesh filter screens, obtained finished product.
In order to verify effect of the present invention, under identical dosage, the high-efficiency composite scale corrosion inhibitor prepare embodiment 1-5 and existing organophosphorus acids anti-incrustation corrosion inhibitor carry out the simultaneous test of scale inhibition, corrosion mitigating effect: test raw water quality pH6.1, turbidity is 31 degree (NTU), and calcium ion is 1220.5mg/L.In antisludging test, the added amount of chemical of embodiment 1-5 is 30mg/L, and test temperature is 80 DEG C, concentrated 3.0 times.In inhibition (rotary hanging plate) test, the added amount of chemical of embodiment 1-7 is 30mg/L, and test temperature is 50 DEG C, and lacing film speed of rotation is 75 revs/min, and test period is 216 hours.Its result is as shown in table 1.
Table 1 anti-incrustation corrosion inhibitor performance comparison test result
The result shows: compare existing organic phosphoric acid class anti-incrustation corrosion inhibitor product, adopt the present invention fill a prescription preparation anti-incrustation corrosion inhibitor, its scale inhibition and inhibition better effects if.
Finally, it should be pointed out that above embodiment is only the more representational example of the present invention.Obviously, the invention is not restricted to above-mentioned embodiment.Every above embodiment is done according to technical spirit of the present invention any simple modification, equivalent variations and modification, all should think and belong to protection scope of the present invention.
Claims (1)
1. a composite scale-inhibiting corrosion inhibitor, it is characterized in that this composite scale-inhibiting corrosion inhibitor is made by weight percentage primarily of following component: 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid 10 ~ 15 parts, sodium lignosulfonate 10 ~ 15 parts, benzotriazole 3 ~ 5 parts, methylsulfonic acid 2 ~ 5 parts, poly-epoxy succinic acid 5 ~ 8 parts, sodium wolframate 6 ~ 9 parts, thiocarbamide 2 ~ 5 parts, 7 ~ 12 parts, tensio-active agent, deionized water 30 ~ 40 parts; Described tensio-active agent is one or more mixtures in octadecyl amine hydrochloride, dioctadecylamine hydrochloride, stearyl dimethyl benzyl ammonium chloride, palmityl trimethyl ammonium chloride, dodecyl dimethyl phenyl bromo-phosphonium.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104276676B (en) * | 2014-10-22 | 2016-08-17 | 佛山鹏德科技有限公司 | A kind of antisludging agent for boiler recirculated water |
| CN105169954A (en) * | 2015-09-10 | 2015-12-23 | 韩功篑 | Reverse osmosis scale inhibitor for desalting seawater and preparation method thereof |
| CN105314744A (en) * | 2015-12-12 | 2016-02-10 | 沧州泓海化工有限公司 | Novel corrosion and scale inhibitor |
| CN106242086A (en) * | 2016-08-29 | 2016-12-21 | 山东胜伟园林科技有限公司 | A kind of carbonate bases ground antisludging agent and preparation method thereof |
| CN106396137A (en) * | 2016-11-09 | 2017-02-15 | 山东英联化学科技有限公司 | Corrosion and scale inhibitor used for circulating cooling water and preparation method of corrosion and scale inhibitor |
| CN108914104A (en) * | 2018-06-25 | 2018-11-30 | 杨飞 | A kind of octadecylamine shutdown protection solution and preparation method thereof |
| CN110157391A (en) * | 2019-05-28 | 2019-08-23 | 司能石油化工有限公司 | A kind of engine coolant composite corrosion inhibitor and preparation method thereof |
| CN110818104A (en) * | 2019-12-23 | 2020-02-21 | 王其芬 | Method for preparing corrosion and scale inhibition adsorbent by taking lignin in papermaking wastewater as raw material |
| CN113149239A (en) * | 2021-04-06 | 2021-07-23 | 重庆电力高等专科学校 | Preparation of corrosion and scale inhibitor for circulating cooling water |
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| CN1139650A (en) * | 1995-07-05 | 1997-01-08 | 刘春光 | Multi-function water quality treating agent for cooling water system |
| JP2003080294A (en) * | 2001-09-11 | 2003-03-18 | Japan Organo Co Ltd | Scaling inhibitor and method for preventing scaling |
| CN101759307A (en) * | 2009-12-08 | 2010-06-30 | 武汉科技大学 | Compound scale inhibitor for desalting vanadium extracting waste water of shale containing vanadium and use method |
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| FR2961803B1 (en) * | 2010-06-29 | 2013-02-22 | Arkema France | ACID COMPOSITIONS FOR THE REMOVAL OF OXALATES |
| FR2965007B1 (en) * | 2010-09-20 | 2012-10-12 | Snf Sas | IMPROVED PROCESS FOR ASSISTED OIL RECOVERY USING THE ASP TECHNIQUE |
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| CN1085525A (en) * | 1992-10-15 | 1994-04-20 | 聂新宇 | Automatic scale removing agent for water tank of vehicle |
| CN1139650A (en) * | 1995-07-05 | 1997-01-08 | 刘春光 | Multi-function water quality treating agent for cooling water system |
| JP2003080294A (en) * | 2001-09-11 | 2003-03-18 | Japan Organo Co Ltd | Scaling inhibitor and method for preventing scaling |
| CN101759307A (en) * | 2009-12-08 | 2010-06-30 | 武汉科技大学 | Compound scale inhibitor for desalting vanadium extracting waste water of shale containing vanadium and use method |
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