CN101125715A - Composite corrosion-retarding antisludging agent for treating high-concentration multiple circulating water - Google Patents
Composite corrosion-retarding antisludging agent for treating high-concentration multiple circulating water Download PDFInfo
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- CN101125715A CN101125715A CNA2007101392202A CN200710139220A CN101125715A CN 101125715 A CN101125715 A CN 101125715A CN A2007101392202 A CNA2007101392202 A CN A2007101392202A CN 200710139220 A CN200710139220 A CN 200710139220A CN 101125715 A CN101125715 A CN 101125715A
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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
- C23F14/00—Inhibiting incrustation in apparatus for heating liquids for physical or chemical purposes
- C23F14/02—Inhibiting incrustation in apparatus for heating liquids for physical or chemical purposes by chemical means
Abstract
A compound inhibition antisludging agent is used for treating high-concentration circulation water, comprising a liquid part and a solid part. Based on that the total weight of the liquid part is deemed to be 100 percent, percentages of each component by weight are: organic phosphonic acid 5-40 percent, organic carboxylic acid 5-40 percent and water 20-90 percent; and based on that the total weight of the solid part is deemed to be 100 percent, percentages of each component by weight are: polymer with antisludging effect 5-35 percent, alkaline agent 45-80 percent, azoles 1-10 percent and zinc salt 1-10 percent. The concentrations of the liquid part and the solid part in the circulating water are that: the solid part: the dosage of the agent added into make-up water is 20-200mg/L; the liquid part: total phosphine kept in the circulating water system is 10-15mg/L. The invention has effects of inhibition, antisludging, sterilization and algae removal upon meeting the requirements of the state, can promote the concentration multiple of the circulating water system up to 7.5 or more and can be operated at normal temperature with good effect and without pre-membrane treatment.
Description
Technical field
The present invention relates to a kind of water treatment agent that is used for recirculated water, particularly a kind of composite slow-corrosion scale resistor of handling high concentration multiple recirculated water is used for the processing of high concentration multiple (K＞7.5) recirculated water.
Background technology
At present, both at home and abroad the water treatment agent that adopts mostly is organic phosphine series medicament greatly, and the cycles of concentration of this series medicament is generally between 2～3, and is higher only 4, causes a large amount of wastes of water resources.Especially for the such country of water resources shortage per capita of China, the in short supply of water resources will seriously restrict expanding economy.Existing solid kind scale inhibition agent ubiquity is to the problem that it is poor that the corrosion mitigating effect of carbon steel is made a mistake, can not reach the national standard of corrosion of carbon steel rate 0.1～0.2mm/, solid chemicals is in order to increase its corrosion mitigating effect, often require the pre-film of system, require system temperature to reach 40～50 ℃, and the circulating water system capacity, general little then hundreds of, greatly then several thousand cubes, for the user, be do not allow facile.Can not guarantee definitely that pre-film effect can reach technical requirements even done.CN1715215A discloses a kind of corrosion inhibiting and descaling agent, comprises mercaptobenzothiazole, 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid, vinylformic acid-acrylate-co-polymer of sulfonate, Sodium salts humic acids, xylogen, sodium hydroxide and water.CN1258649A discloses a kind of Recompounded multielement antisludging corrosion inhibitor, comprising organic phospho acid, contain sulfonic group multipolymer, zinc salt and look particular case and the copper material corrosion inhibitor that exists.CN1459424A discloses a kind of special corrosion and scale inhibitor for surface evaporation air cooling that is mainly used in the circulating water system of high rigidity, high basicity, its prescription is: zinc sulfate: 15～25, vinylformic acid-acrylic acid esters co-polymer: 30～36, hydroxyl 1-1-ethylidene diphosphonic acid: 34～46, benzotriazole: 4～6.CN1068312A discloses a kind of corrosion inhibiting antisludging agent for circularly-cooling sea water, comprises poly carboxylic acid, organic phosphonate, organic sludge conditioning agent, nitrogen azole material, components such as poly-phosphate.CN1176229A discloses a kind of composite slow-corrosion scale resistor that is used for the cycle of treatment water coolant, and this recombiner is to be host with 2-hydroxyl phosphino-acetate and its esters, composite organic phospho acid compound, zinc salt and phosphine carboxylic acid cpd.CN1218846A discloses a kind of composite slow-corrosion scale resistor that is used for severe corrosive water quality, and this recombiner is a host with 2-hydroxyl phosphino-acetate and its esters, composite organic phospho acid compound, phosphine carboxylic acid cpd and zinc salt.CN1257841A discloses a kind of corrosion-retarding scale inhibitor for boiler, this corrosion inhibiting and descaling agent is with the zinc salt combination of the organic phosphine and the high corrosion inhibition of the high scale-inhibiting properties of tool, be aided with again with above-mentioned single-component have the dispersion activator of good synergistic effect, auxiliary inhibiter forms, it comprises that following raw material makes: organic multicomponent phosphonic acids and salt thereof, polymaleic anhydride, zinc sulfate, nitrogen-containing heterocycle compound, alkyl oxide and solvent.CN1294092A discloses a kind of composite slow-corrosion scale resistor that is used for demineralized water recirculated water, comprising: in composition weight is 100%, carboxylic sulfonic acid copolymer 5～35%, phosphoric acid ester 5～35%, zinc salt 2～10%, and water.This recombiner can also contain azole compounds, organic phospho acid or its salt and organic phosphine carboxylic acid or its salt.CN1306944A discloses a kind of composite slow-corrosion scale resistor that is used to handle industrial circulating cooling water, comprise following component: in composition weight 100%, hydroxyl phosphino-acetic acid compound 1～20%, isopropylene phosphonic acid polymkeric substance 1～25%, 2-acrylamido-2-methyl propane sulfonic acid and acrylic copolymer 1～35%, zinc salt (in zinc) 1～10%, all the other are water.CN1331050A discloses a kind of composite slow-corrosion scale resistor that is used to handle the soft recirculated cooling water, in recombiner weight is 100%, comprise: the phosphine carboxylic acid 1～30% that contains sulfonic acid, hydroxyl phosphino-acetic acid compound 5～40%, organic phospho acid compound 1～12%, zinc salt 1～20%, water 30～80%.CN1331051A discloses a kind of composite slow-corrosion scale resistor that is used for handling high rigidity recirculated water, is benchmark with the recombiner gross weight, comprising: the organic phosphine carboxylic acid 1～40% that contains sulfonic acid, acrylic copolymer 1～20%, organic phospho acid compound 1～30%, zinc salt 1～30%, water 30～80%.CN1618743A discloses a kind of composite slow-corrosion scale resistor and the application in recirculated cooling water is handled thereof.Composite scale-inhibiting corrosion inhibitor of the present invention includes machine phosphonic acid, organic phosphine carboxylic acid and contains carboxylic acid group's homopolymer or multipolymer, and described phosphine carboxylic acid is hydroxyethylidene diphosphonic acid guanidine-acetic acid or hydroxyethylidene diphosphonic acid guanidine-acetic acid and 2-phosphonate group-1,2,4-butane tricarboxylate's mixture.CN17152163A discloses a kind of stable form corrosion inhibiting and descaling agent, contains Amino Trimethylene Phosphonic Acid (ATMP), ethylenediamine tetramethylene phosphonic acid (EDTMP), amino ethylidine di 2 ethylhexyl phosphonic acid (AEDP), zinc sulfate and water.CN1715451A discloses a kind of corrosion inhibiting and descaling agent efficiently, described corrosion inhibiting and descaling agent contains PAPE (PAPE), zinc sulfate, vinylformic acid-acrylate-co-polymer of sulfonate and water, wherein, the mass percent of each component is as follows: PAPE (PAPE): 30%～40% zinc sulfate: 15%～30% vinylformic acid-acrylate-co-polymer of sulfonate: 5%～10% surplus is a water.CN1754837A discloses a kind of corrosion inhibiting and descaling agent that is used for air-conditioning system, comprises 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid, mercaptobenzothiazole, vinylformic acid-acrylate-co-polymer of sulfonate, xylogen, sodium hydroxide and water.CN1754840A discloses a kind of corrosion inhibiting and descaling agent that is used for industrial cooling circulating water system, and described corrosion inhibiting and descaling agent comprises vinylformic acid-acrylate-co-polymer of sulfonate, mercaptobenzothiazole, Sodium salts humic acids, xylogen and water.CN1506325A discloses a kind of spike type water quality stabilizer, by compound compositions such as Scale inhibitors, inhibiter, spike polymkeric substance, auxiliary agents.It is complicated that above-mentioned technology has, and the recirculated water that makes that has is difficult for moving under the condition of high concentration multiple or high pH value.
Summary of the invention
The objective of the invention is to overcome the shortcoming of prior art, a kind of composite slow-corrosion scale resistor of handling high concentration multiple recirculated water is provided, it can play inhibition, scale inhibition, the sterilization algae removal effect that meets national requirements, concentration multiple of circulating water system is improved, film in advance, normal temperature can move, and result of use is good.
For solving the problems of the technologies described above, the technical solution used in the present invention is as follows:
A kind of composite slow-corrosion scale resistor of handling high concentration multiple recirculated water, its technical scheme are that described composite slow-corrosion scale resistor comprises liquid portion and solid part, wherein:
Liquid portion is the compound formulation of organic phospho acid, organic carboxyl acid and water, and in liquid portion gross weight 100%, the weight percent of each component of liquid portion is: organic phospho acid 5～40%, organic carboxyl acid 5～40%, water 20～90%.
Solid part is the compound formulation of polymkeric substance with scale effect, alkaline agent, azole, zinc salt, in solid part gross weight 100%, the weight percent of each component of solid part is: have the polymkeric substance 5～35% of scale effect, alkaline agent 45～80%, azole 1～10%, zinc salt 1～10%.
The working concentration of liquid portion and solid part is in recirculated water, solid part: it is 20～200mg/L that make up water adds dose; Liquid portion: keep in the recirculated water total phosphine (with PO
4 3-Meter) be 10～15mg/L.
In the technique scheme, in liquid portion gross weight 100%, each preferred weight percent of component institute of liquid portion is: organic phospho acid 15～35%, organic carboxyl acid 10～30%, water 35～70%.In solid part gross weight 100%, each component of solid part preferred weight percent be: have the polymkeric substance 12～30% of scale effect, alkaline agent 57～75%, azole 1～5%, zinc salt 5～8%.Described organic phospho acid can be selected from 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid, Amino Trimethylene Phosphonic Acid, 2-hydroxyethylidene diphosphonic acid guanidine-acetic acid, sodium ethylenediamine tetramethylenephosphonate or diethylenetriamine pentamethylene phosphonic acids a kind of or two kinds (if adopt two kinds of proportionings between them is arbitrarily, and preferred proportioning is 1: 1) wherein.Described organic carboxyl acid can be selected from hydrolytic polymaleic anhydride, maleic acid-acrylic acid copolymer, vinylformic acid-Propylene glycol monoacrylate multipolymer, vinylformic acid-2-acrylamide-2-methyl propane sulfonic acid multipolymer or phosphono-carboxylic acids multipolymer a kind of or two kinds (if adopt two kinds of proportionings between them is arbitrarily, and preferred proportioning is 1: 1) wherein.Described polymkeric substance with scale effect can be selected tannin extract or Sodium salts humic acids for use.Described alkaline agent can be selected from yellow soda ash, tertiary sodium phosphate or sodium hydroxide a kind of or two kinds (is arbitrarily if adopt two kinds of proportionings between them) wherein.Described azole can be selected benzotriazole or mercaptobenzothiazole for use, and described zinc salt can be selected from zinc chloride, zinc sulfate or zinc nitrate a kind of or two kinds (is arbitrarily if adopt two kinds of proportionings between them) wherein.
The preparation method of liquid portion (compound formulation) is, by above-mentioned weight percent water, organic phospho acid and organic carboxyl acid added (in the reactor) in the container successively, and mixing, stirring promptly gets the compound formulation of liquid portion.The preparation method of solid part (compound formulation) is, polymkeric substance, alkaline agent, azole, the zinc salt that will have scale effect by above-mentioned weight percent add in the container (in the reactor), and mixing, stirring promptly gets the compound formulation of solid part.
Compared with the prior art, the present invention has the following advantages:
1. do not use Biocidal algae-killing agent.Polymkeric substance in the composite slow-corrosion scale resistor provided by the present invention (water conditioner) with scale effect, formed environment suppresses the growth of bacterium algae flagellum and makes it atrophy in water, and restriction metabolism makes it can not fine breeding and death.2. the cycles of concentration height moves naturally, concentrates, and system's cycles of concentration can reach more than 7.5.3. water-saving rate height.Between 2.5～3.5, high by only 4, at this moment, annual make up water rate is Q with respect to the general cycles of concentration of organic phosphine series medicament
Mend=1.5%Q
Follow(quantity of circulating water of recirculated water, down with), as the K=7.5 of system and when above, annual Q
Mend=0.8%Q
Follow, Q can economize on water
Joint=1.5%-0.8%=0.7%Q
FollowFor a quantity of circulating water Q
Follow=10000 tons/hour recirculated water, Q per hour can economize on water
Joint=10000 * 0.7%=70 ton/hour, 600,000 tons of year water savings (360 days meters).4. low blowdown.In like manner, make up water has been saved, and blowdown flow rate has also just reduced.The running environment of composite slow-corrosion scale resistor of the present invention in recirculated cooling water is that the pH value is between 8.0～10, calcium hardness in the recirculated cooling water (in lime carbonate) can reach 1000～2000mg/L, and (total alkalinity is 300～600mg/L, the content of chlorion is 0～1000mg/L), in make up water calcium hardness 250mg/L, system's cycles of concentration can reach more than 7.5, and recirculated cooling water is in the level of zero blowdown.5. economize on electricity.Amount of makeup water reduces the also corresponding minimizing of power consumption that also just means this portion water of needs lifting.6. economic benefit and social benefit are obvious.For a concrete circulating water system, the annual cost that composite slow-corrosion scale resistor provided by the present invention and the existing organic phosphine series that adopts usually add Biocidal algae-killing agent quite or lower slightly, the user is easy to accept.7. through experiment (can adopt the composite slow-corrosion scale resistor of preparation in the embodiments of the invention 1), resistance calcium carbonate scale rate of the present invention is greater than 95%; Resistance calcium phosphate scale rate is greater than 95%.Erosion rate: carbon steel: less than 0.12mm/; Naval's copper: less than 0.008mm/; Stainless steel: less than 0.006mm/.Therefore say that scale inhibition effect of the present invention is good, the corrosion inhibition rate height, result of use is good.
In a word, the present invention can play inhibition, scale inhibition, the sterilization algae removal effect that meets national requirements, concentration multiple of circulating water system is improved, and film in advance, normal temperature can move.
Embodiment
Embodiment 1: composite slow-corrosion scale resistor of the present invention comprises liquid portion and solid part (promptly being made up of liquid portion and solid part), wherein: liquid portion is the compound formulation of organic phospho acid, organic carboxyl acid and water, in liquid portion gross weight 100%, the weight percent of each component of liquid portion can be organic phospho acid 25%, organic carboxyl acid 20%, water 55%.Present embodiment prepares 100Kg liquid portion (compound formulation); can be with 55Kg water; the 25Kg organic phospho acid is (as selecting 10Kg 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid and 15Kg Amino Trimethylene Phosphonic Acid for use; perhaps select 25Kg2-hydroxyethylidene diphosphonic acid guanidine-acetic acid for use; perhaps select 12.5Kg sodium ethylenediamine tetramethylenephosphonate and 12.5Kg diethylenetriamine pentamethylene phosphonic acids for use); the 20Kg organic carboxyl acid is (as selecting the 20Kg hydrolytic polymaleic anhydride for use; perhaps select 10Kg maleic acid-acrylic acid copolymer and 10Kg vinylformic acid-Propylene glycol monoacrylate multipolymer for use; perhaps select 1Kg vinylformic acid-2-acrylamide-2-methyl propane sulfonic acid multipolymer and 19Kg phosphono-carboxylic acids multipolymer for use) add (in the reactor) in the container successively, mix; stir and promptly get the compound formulation of liquid portion.
In liquid portion gross weight 100%, the weight percent of each component of aforesaid liquid part can also be organic phospho acid 5%, organic carboxyl acid 40%, water 55%.The weight percent of each component of liquid portion can also be organic phospho acid 40%, organic carboxyl acid 20%, water 40%.The weight percent of each component of liquid portion can also be organic phospho acid 25%, organic carboxyl acid 5%, water 70%.The weight percent of each component of liquid portion can also be organic phospho acid 40%, organic carboxyl acid 40%, water 20%.The weight percent of each component of liquid portion can also be organic phospho acid 5%, organic carboxyl acid 15%, water 80%.The weight percent of each component of liquid portion can also adopt other ratio (sum is 100%).
Solid part is the compound formulation of polymkeric substance with scale effect, alkaline agent, azole, zinc salt, in solid part gross weight 100%, the weight percent of each component of solid part can for: have the polymkeric substance 20% of scale effect, alkaline agent 71%, azole 3%, zinc salt 6%.Present embodiment prepares 100Kg solid part (compound formulation), the polymkeric substance (as selecting 20Kg tannin extract or 20Kg Sodium salts humic acids for use) that 20Kg can be had scale effect, the 71Kg alkaline agent is (as selecting 35Kg yellow soda ash and 36Kg tertiary sodium phosphate for use, perhaps select 71Kg sodium hydroxide for use, perhaps select 11Kg sodium hydroxide and 60Kg tertiary sodium phosphate for use), 3Kg azoles (as selecting 3Kg benzotriazole or 3Kg mercaptobenzothiazole for use), the 6Kg zinc salt is (as selecting 2Kg zinc chloride and 4Kg zinc sulfate for use, perhaps select the 6Kg zinc nitrate for use, perhaps select the 6Kg zinc chloride for use, perhaps select 3Kg zinc sulfate and 3Kg zinc nitrate for use) can add (in the reactor) in the container successively, mix, stir and promptly get the compound formulation of solid part.
In solid part gross weight 100%, the weight percent of above-mentioned each component of solid part can also for: have the polymkeric substance 25% of scale effect, alkaline agent 65%, azole 2%, zinc salt 8%.The weight percent of each component of solid part can also for: have the polymkeric substance 35% of scale effect, alkaline agent 63%, azole 1%, zinc salt 1%.The weight percent of each component of solid part can also for: have the polymkeric substance 20% of scale effect, alkaline agent 71%, azole 5%, zinc salt 4%.The weight percent of each component of solid part can also for: have the polymkeric substance 35% of scale effect, alkaline agent 45%, azole 10%, zinc salt 10%.The weight percent of each component of solid part can also for: have the polymkeric substance 15% of scale effect, alkaline agent 75%, azole 5%, zinc salt 5%.Certainly, the weight percent of each component of solid part can also adopt other ratio (sum is 100%).
The working concentration of liquid portion and solid part is in recirculated water, solid part: it is 20～200mg/L that make up water adds dose; Liquid portion: keep in the recirculated water total phosphine (with PO
4 3-Meter) be 10～15mg/L.For example, it for a quantity of circulating water 10000 tons/hour circulating water system, on average per hour replenish 80 tons in (fresh) water, the water quality of make up water: calcium hardness (total hardness, in lime carbonate) be 250mg/L, total alkalinity is 200mg/L, and the content of chlorion is 21mg/L, and the pH value is between 8.0～9.0.The dose that adds of solid part on average per hour can be: 1600～16000g, per hour can be 6400g/, and this moment, the dose that adds of solid part was 80mg/L.Liquid portion: keeping in the recirculated water total phosphine is 10～15mg/L (determining the actual dose that adds according to total water capacity of system and medicament organic phosphine concentration).
Above-mentioned organic phospho acid can be selected from wherein a kind of of 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid (HEDP), Amino Trimethylene Phosphonic Acid (ATMP), 2-hydroxyethylidene diphosphonic acid guanidine-acetic acid (HPAA), sodium ethylenediamine tetramethylenephosphonate (EDTMPS) or diethylenetriamine pentamethylene phosphonic acids (DTPMP) or two kinds.Specifically be to use wherein a kind of of 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid, Amino Trimethylene Phosphonic Acid, 2-hydroxyethylidene diphosphonic acid guanidine-acetic acid, sodium ethylenediamine tetramethylenephosphonate or diethylenetriamine pentamethylene phosphonic acids separately.Or use 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid and Amino Trimethylene Phosphonic Acid together, or use 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid and 2-hydroxyethylidene diphosphonic acid guanidine-acetic acid together, or use 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid and sodium ethylenediamine tetramethylenephosphonate together, or use 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid and diethylenetriamine pentamethylene phosphonic acids together, or use Amino Trimethylene Phosphonic Acid and 2-hydroxyethylidene diphosphonic acid guanidine-acetic acid together, or use Amino Trimethylene Phosphonic Acid and sodium ethylenediamine tetramethylenephosphonate together, or use Amino Trimethylene Phosphonic Acid and diethylenetriamine pentamethylene phosphonic acids together, or use 2-hydroxyethylidene diphosphonic acid guanidine-acetic acid and sodium ethylenediamine tetramethylenephosphonate together, or use 2-hydroxyethylidene diphosphonic acid guanidine-acetic acid and diethylenetriamine pentamethylene phosphonic acids together, or use sodium ethylenediamine tetramethylenephosphonate and diethylenetriamine pentamethylene phosphonic acids together.If adopting two kinds of proportionings between them is arbitrarily, preferred proportioning is 1: 1.
Above-mentioned organic carboxyl acid can be selected from wherein a kind of of hydrolytic polymaleic anhydride (HPMA), maleic acid-acrylic acid copolymer (MA/AA), vinylformic acid-Propylene glycol monoacrylate multipolymer (T-225), vinylformic acid-2-acrylamide-2-methyl propane sulfonic acid multipolymer (AA/AMPS) or phosphono-carboxylic acids multipolymer (POCA) or two kinds.Specifically be to use wherein a kind of of hydrolytic polymaleic anhydride, maleic acid-acrylic acid copolymer, vinylformic acid-Propylene glycol monoacrylate multipolymer, vinylformic acid-2-acrylamide-2-methyl propane sulfonic acid multipolymer or phosphono-carboxylic acids multipolymer separately.Or use hydrolytic polymaleic anhydride and maleic acid-acrylic acid copolymer together; or use hydrolytic polymaleic anhydride and vinylformic acid-Propylene glycol monoacrylate multipolymer together; or use hydrolytic polymaleic anhydride and vinylformic acid-2-acrylamide-2-methyl propane sulfonic acid multipolymer together; or use hydrolytic polymaleic anhydride and phosphono-carboxylic acids multipolymer together; or use maleic acid-acrylic acid copolymer and vinylformic acid-Propylene glycol monoacrylate multipolymer together; or use maleic acid-acrylic acid copolymer and vinylformic acid-2-acrylamide-2-methyl propane sulfonic acid multipolymer together; or use maleic acid-acrylic acid copolymer and phosphono-carboxylic acids multipolymer together; or use vinylformic acid-Propylene glycol monoacrylate multipolymer and vinylformic acid-2-acrylamide-2-methyl propane sulfonic acid multipolymer together; or use vinylformic acid-Propylene glycol monoacrylate multipolymer and phosphono-carboxylic acids multipolymer together, or use vinylformic acid-2-acrylamide-2-methyl propane sulfonic acid multipolymer and phosphono-carboxylic acids multipolymer together.If adopting two kinds of proportionings between them is arbitrarily, preferred proportioning is 1: 1.
The above-mentioned polymkeric substance with scale effect can be selected tannin extract or Sodium salts humic acids for use.
Above-mentioned alkaline agent can be selected from wherein a kind of of yellow soda ash, tertiary sodium phosphate or sodium hydroxide or two kinds.Specifically be to use wherein a kind of of yellow soda ash, tertiary sodium phosphate or sodium hydroxide separately, or use yellow soda ash and tertiary sodium phosphate together, or use yellow soda ash and sodium hydroxide together, or use tertiary sodium phosphate and sodium hydroxide together.If adopting two kinds of proportionings between them is arbitrarily.
Above-mentioned azole can be selected benzotriazole (BZT) or mercaptobenzothiazole (MBT) for use.
Above-mentioned zinc salt can be selected from wherein a kind of of zinc chloride, zinc sulfate or zinc nitrate or two kinds.Specifically be to use wherein a kind of of zinc chloride, zinc sulfate or zinc nitrate separately, or use zinc chloride and zinc sulfate together, or use zinc chloride and zinc nitrate together, or use zinc sulfate and nitric acid together.If adopting two kinds of proportionings between them is arbitrarily.
Embodiment 2: composite slow-corrosion scale resistor of the present invention comprises liquid portion and solid part, wherein: the weight proportion of each component of liquid portion is: 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid 20g, Amino Trimethylene Phosphonic Acid 15g, hydrolytic polymaleic anhydride 10g, vinylformic acid-Propylene glycol monoacrylate copolymer 1 0g, water 55g adds it in beaker, and stirring gets final product.The weight proportion of each component of solid part is: Sodium salts humic acids 25g, and yellow soda ash 65g, mercaptobenzothiazole 2g, zinc sulfate 8g, placing it in stirs in the container gets final product.
Experiment water quality (make up water water quality): calcium hardness is 200mg/L, and total alkalinity is 200mg/L, chlorion (Cl
-) content be 40mg/L.
Adopt above-mentioned composite slow-corrosion scale resistor of the present invention and above-mentioned experiment water quality to carry out the experiment of static state resistance calcium carbonate scale, with reference to No. the 401st, China Petroleum Chemicals Corporation's " recirculated cooling water analysis and test method ", 80 ℃ of experiment water temperatures concentrate 8 times.
Resistance calcium carbonate scale rate: 98%.
Adopt above-mentioned composite slow-corrosion scale resistor of the present invention and above-mentioned experiment water quality to carry out the experiment of static state resistance calcium phosphate scale, with reference to No. the 402nd, China Petroleum Chemicals Corporation's " recirculated cooling water analysis and test method ", 80 ℃ of experiment water temperatures.
Resistance calcium phosphate scale rate: 96%.
Adopt above-mentioned composite slow-corrosion scale resistor of the present invention and above-mentioned experiment water quality to be rotated the lacing film experiment, with reference to HG/T 2159-91 standard, 80 ℃ of experiment water temperatures, 75 rev/mins of rotating speeds move 96 hours.
Erosion rate: carbon steel 0.092mm/.Naval's copper: 0.006mm/, stainless steel: 0.002mm/.
Embodiment 3: composite slow-corrosion scale resistor of the present invention comprises liquid portion and solid part, wherein: the weight proportion of each component of liquid portion is: 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid 25g, Amino Trimethylene Phosphonic Acid 10g, hydrolytic polymaleic anhydride 1 5g, vinylformic acid-Propylene glycol monoacrylate multipolymer 20g, water 45g adds it in beaker, and stirring gets final product.The weight proportion of each component of solid part is: Sodium salts humic acids 30g, and yellow soda ash 60g, mercaptobenzothiazole 3g, zinc sulfate 7g, placing it in stirs in the container gets final product.
Experiment water quality: (replenishing water quality) calcium hardness is 250mg/L, and total alkalinity is 250mg/L, chlorion (Cl
-) content be 60mg/L.
Adopt above-mentioned composite slow-corrosion scale resistor of the present invention and above-mentioned experiment water quality to carry out static state resistance calcium carbonate scale, static resistance calcium phosphate scale, rotary hanging plate experiment respectively according to the method for embodiment 2, the result is as follows:
Resistance calcium carbonate scale rate: 96%, resistance calcium phosphate scale rate: 97%.
Erosion rate: carbon steel: 0.083mm/, naval's copper: 0.0069mm/, stainless steel 0.003mm/.
Embodiment 4: composite slow-corrosion scale resistor of the present invention comprises liquid portion and solid part, wherein: the weight proportion of each component of liquid portion is: 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid 10g, Amino Trimethylene Phosphonic Acid 20g, hydrolytic polymaleic anhydride 10g, vinylformic acid-Propylene glycol monoacrylate multipolymer 30g, water 30g adds it in beaker, and stirring gets final product.The weight proportion of each component of solid part is: Sodium salts humic acids 20g, and yellow soda ash 70g, mercaptobenzothiazole 2g, zinc sulfate 8g, placing it in stirs in the container gets final product.
Experiment water quality: (replenishing water quality) calcium hardness is 300mg/L, and total alkalinity is 350mg/L, chlorion (Cl
-) content be 80mg/L.
Adopt above-mentioned composite slow-corrosion scale resistor of the present invention and above-mentioned experiment water quality to carry out static state resistance calcium carbonate scale, static resistance calcium phosphate scale, rotary hanging plate experiment respectively according to the method for embodiment 2, the result is as follows:
Resistance calcium carbonate scale rate: 98%, resistance calcium phosphate scale rate: 96%.
Erosion rate: carbon steel 0.12mm/, naval's copper: 0.008mm/, stainless steel: 0.006mm/.
Claims (10)
1. a composite slow-corrosion scale resistor of handling high concentration multiple recirculated water is characterized in that described composite slow-corrosion scale resistor comprises liquid portion and solid part, wherein:
Liquid portion is the compound formulation of organic phospho acid, organic carboxyl acid and water, and in liquid portion gross weight 100%, the weight percent of each component of liquid portion is: organic phospho acid 5～40%, organic carboxyl acid 5～40%, water 20～90%;
Solid part is the compound formulation of polymkeric substance with scale effect, alkaline agent, azole, zinc salt, in solid part gross weight 100%, the weight percent of each component of solid part is: have the polymkeric substance 5～35% of scale effect, alkaline agent 45～75%, azole 1～10%, zinc salt 1～10%;
The working concentration of liquid portion and solid part is in recirculated water, solid part: it is 20～200mg/L that make up water adds dose; Liquid portion: keeping in the recirculated water total phosphine is 10～15mg/L.
2. composite slow-corrosion scale resistor according to claim 1 is characterized in that in liquid portion gross weight 100%, the weight percent of each component of liquid portion is: organic phospho acid 15～35%, organic carboxyl acid 10～30%, water 35～75%.
3. composite slow-corrosion scale resistor according to claim 1, it is characterized in that in solid part gross weight 100%, the weight percent of each component of solid part is: have the polymkeric substance 12～30% of scale effect, alkaline agent 57～75%, azole 1～5%, zinc salt 5～8%.
4. composite slow-corrosion scale resistor according to claim 1 is characterized in that described organic phospho acid is selected from wherein a kind of of 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid, Amino Trimethylene Phosphonic Acid, 2-hydroxyethylidene diphosphonic acid guanidine-acetic acid, sodium ethylenediamine tetramethylenephosphonate or diethylenetriamine pentamethylene phosphonic acids or two kinds.
5. composite slow-corrosion scale resistor according to claim 1 is characterized in that described organic carboxyl acid is selected from wherein a kind of of hydrolytic polymaleic anhydride, toxilic acid-Acrylate copolymer, vinylformic acid-Propylene glycol monoacrylate multipolymer, vinylformic acid-2-acrylamide-2-methyl propane sulfonic acid multipolymer or phosphono-carboxylic acids multipolymer or two kinds.
6. composite slow-corrosion scale resistor according to claim 1 is characterized in that described polymkeric substance with scale effect selects tannin extract or Sodium salts humic acids for use.
7. composite slow-corrosion scale resistor according to claim 1 is characterized in that described alkaline agent is selected from wherein a kind of of yellow soda ash, tertiary sodium phosphate or sodium hydroxide or two kinds.
8. composite slow-corrosion scale resistor according to claim 1 is characterized in that described azole selects benzotriazole or mercaptobenzothiazole for use.
9. composite slow-corrosion scale resistor according to claim 1 is characterized in that described zinc salt is selected from wherein a kind of of zinc chloride, zinc sulfate or zinc nitrate or two kinds.
10. according to claim 1 or 2 or 3 described composite slow-corrosion scale resistors, it is characterized in that described organic phospho acid is selected from wherein two kinds of 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid, Amino Trimethylene Phosphonic Acid, 2-hydroxyethylidene diphosphonic acid guanidine-acetic acid, sodium ethylenediamine tetramethylenephosphonate or diethylenetriamine pentamethylene phosphonic acids, the proportioning between them is 1: 1; Described organic carboxyl acid is selected from wherein two kinds of hydrolytic polymaleic anhydride, toxilic acid-Acrylate copolymer, vinylformic acid-Propylene glycol monoacrylate multipolymer, vinylformic acid-2-acrylamide-2-methyl propane sulfonic acid multipolymer or phosphono-carboxylic acids multipolymer, and the proportioning between them is 1: 1.
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Effective date of registration: 20161118 Address after: 200120 Shanghai City, Pudong New Area China (Shanghai) free trade zone fanchun Road No. 400 Building 1 layer 3 Patentee after: Shanghai Environmental Protection Technology Co., Ltd. Hui Qin Address before: 102 room 3, unit 3, building 052160, industrial road supervision company, Gaocheng, Hebei Patentee before: Fan Guixiu |
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Address after: 200000 Pudong New Area, Shanghai, China (Shanghai) free trade trial area, No. 3, 1 1, Fang Chun road. Patentee after: Shanghai Weiqin Environmental Protection Technology Co., Ltd. Address before: 200120 Pudong New Area, Shanghai, China (Shanghai) free trade trial area, No. 3, 1 1, Fang Chun road. Patentee before: Shanghai Environmental Protection Technology Co., Ltd. Hui Qin |
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