CN105036369A - Antisludging agent for styrene rectification system and preparation method of antisludging agent - Google Patents
Antisludging agent for styrene rectification system and preparation method of antisludging agent Download PDFInfo
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- CN105036369A CN105036369A CN201510368580.4A CN201510368580A CN105036369A CN 105036369 A CN105036369 A CN 105036369A CN 201510368580 A CN201510368580 A CN 201510368580A CN 105036369 A CN105036369 A CN 105036369A
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Abstract
The application discloses an antisludging agent for a styrene rectification system and a preparation method of the antisludging agent. Quadrol tetramethylene sodium etidronate, sodium polyacrylate, triethylene tetramine, formaldehyde, distilled water, phosphorus trichloride, antioxygen, sodium hydroxide, amidogen trimethylene phosphonic acid, hexanediamine tetramethylene phosphonic acid and nitrophenol polymerization inhibitor are weighed in parts by weight, the product can effectively inhibits generation of dirty in the styrene rectification system, and prolongs the operation period of the styrene device; the addition concentration of the antisludging agent is 0.00001%-0.0001% of charging rate of a styrene rectification tower; the effect is durable, and the antisludging agent has an antisludging effect of 98-100% after placing for one month at 50-60 DEG C.
Description
Technical field
The application belongs to cyclization reagent technology field, particularly relates to a kind of environmental protection, styrene rectification system Scale inhibitors that corrosion inhibition is good and preparation method thereof.
Background technology
Scale inhibitors (scaleinhibitor): be the insoluble inorganic salt had in energy disperse water, prevention or the precipitation of interference insoluble inorganic salt in metallic surface, fouling function, and maintain the class medicament that hardware has good heat-transfer effect.Cold exchange device antiseptic corrosion inhibitor is with epoxy resin and specific amino resin for base-material, and it is formulated to add the appropriate various auxiliary agent such as various antirust, anticorrosion, is single component.It has excellent shielding, impervious, rustless property, good scale inhibition, thermal conductivity, the performances such as excellent weak acid resistant, highly basic, organic solvent, its strong adhesion, and rete is bright, pliable and tough, fine and close, hard.
The result of dissemination stops into dirt interparticlely contact with each other and condense, thus can stop the growth of dirt.Becoming dirty particle can be calcium, magnesium ion, can also be dust, silt or other water-insolubles.Dispersion agent is the polymkeric substance with certain relative molecular mass (or polymerization degree), and the height of dispersing property is closely related with the size of relative molecular mass (or polymerization degree).The polymerization degree is too low, then few by absorption divided particles number, dispersion efficiency is low; The polymerization degree is too high, then too much by absorption divided particles number, water body becomes muddy, even forms flco (effect is now close with flocculation agent).Compared with sequestering action, dissemination is efficient.In middle high hardness water, the divergent function of Scale inhibitors plays a major role.PAAS is nontoxic, soluble in water, can run and non-scaling under alkalescence and middle cycles of concentration condition.The crystallite of the salt such as calcium carbonate, calcium sulfate or silt can be scattered in water and not precipitate by PAAS, thus reach scale inhibition object.
ATMP has good chelating, lower bound suppresses and lattice distortion effect.Scaling salt class in water can be stoped to form the formation of incrustation scale, particularly calcium carbonate scale.ATMP is stable chemical nature in water, not facile hydrolysis.When concentration is higher in water, there is good corrosion mitigating effect.AA/AMPS is that vinylformic acid and 2-acrylamide-2-methyl propane sulfonic (AMPS) copolymerization form.Owing to containing the sulfonic group of the good carboxylic acid group of scale inhibition and dispersion performance and strong polarity in molecular structure, can calcium tolerance be improved, have significant scale effect to the calcium phosphate in water, calcium carbonate, zinc dirt etc., and dispersing property be excellent.Composite with organic phosphine, synergism is obvious.Being particularly suitable for the water quality of high pH, high alkalinity, high rigidity, is one of optimal dirt dispersion agent realizing high concentration multiple operation.
HEDP is a kind of organic phosphine 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.At 250 DEG C, still can play good corrosion-mitigation scale-inhibition effect, still very stable at a high ph, not facile hydrolysis, not easily decomposes under general light and heat condition.Comparatively other organic phospho acid (salt) is good for resistance to acids and bases, chlorine-resistant oxidation susceptibility.
EDTMPS is nitrogenous organic multicomponent phosphonic acids, and belong to cathode type inhibiter, compared with inorganic polyphosphate, corrosion inhibition rate is high 3 ~ 5 times.Can be miscible with water, nontoxic pollution-free, chemical stability and temperature tolerance good, at 100 DEG C, still have good scale inhibition effect.EDTMPS can be dissociated into 8 negative ions in aqueous, thus can with multiple metal ion-chelant, form the netted complex compound of multiple monomer structure macromole, loosely is scattered in water, make calcium dirt normal crystallization be destroyed.EDTMPS is good to the scale inhibition effect of calcium sulfate, barium sulfate scale.
EDTMPA has the ability of very strong chelated metal ions, is maximum in all sequestrants comprising EDTA with the complexation constant of cupric ion.EDTMPA is high purity reagent and nontoxic, can be used as the clean-out system of semi-conductor chip for the manufacture of unicircuit in electron trade; That makes radioelement in pharmaceutical industries carries agent, for checking and disease therapy; The sequestering power of EDTMPA, almost all can be alternative with EDTMPA in all places using EDTA to make sequestrant far more than EDTA and DTPA.And universal along with humanity concept, and the formation of novel harmonious society, designs a kind of nontoxic, odorless, environmental protection and good styrene rectification system Scale inhibitors of corrosion inhibition and preparation method thereof is very important.
Summary of the invention
the technical problem solved:
The application, for above-mentioned technical problem, provides a kind of styrene rectification system Scale inhibitors and preparation method thereof, solves that existing Scale Inhibitors for Water cost is high, temperature resistance is poor, the technical problem such as scale inhibition poor stability and slowly-releasing poor performance.
technical scheme:
A kind of styrene rectification system Scale inhibitors, the raw materials by weight portion proportioning of described styrene rectification system Scale inhibitors is as follows: sodium ethylenediamine tetramethylenephosphonate 10-30 part; Sodium polyacrylate 5-25 part; Triethylene tetramine 30-50 part; Formaldehyde 25-45 part; Distilled water 100 parts; Phosphorus trichloride 20-40 part; Oxidation inhibitor 10-30 part; Sodium hydroxide 15-35 part; Amino Trimethylene Phosphonic Acid 8-12 part; Hexamethylenediaminetetramethylene tetramethylene phosphonic acid is 4-16 part; Nitrophenol polymerization inhibitor 20-60 part.
As a preferred technical solution of the present invention: the raw materials by weight portion proportioning of described styrene rectification system Scale inhibitors is as follows: sodium ethylenediamine tetramethylenephosphonate 15-25 part; Sodium polyacrylate 10-20 part; Triethylene tetramine 35-45 part; Formaldehyde 30-40 part; Distilled water 100 parts; Phosphorus trichloride 25-35 part; Oxidation inhibitor 15-25 part; Sodium hydroxide 20-30 part; Amino Trimethylene Phosphonic Acid 9-11 part; Hexamethylenediaminetetramethylene tetramethylene phosphonic acid is 6-12 part; Nitrophenol polymerization inhibitor 30-50 part.
As a preferred technical solution of the present invention: the raw materials by weight portion proportioning of described styrene rectification system Scale inhibitors is as follows: sodium ethylenediamine tetramethylenephosphonate 20 parts; Sodium polyacrylate 15 parts; Triethylene tetramine 40 parts; 35 parts, formaldehyde; Distilled water 100 parts; Phosphorus trichloride 30 parts; 20 parts, oxidation inhibitor; 25 parts, sodium hydroxide; Amino Trimethylene Phosphonic Acid 10 parts; Hexamethylenediaminetetramethylene tetramethylene phosphonic acid is 10 parts; Nitrophenol polymerization inhibitor 40 parts.
As a preferred technical solution of the present invention: described oxidation inhibitor adopts p-tert-butylphenol or 2,6 di t butyl phenol.
As a preferred technical solution of the present invention: described nitrophenol polymerization inhibitor adopts 2,4-DNP or 2,6-dinitro-p-cresol.
As a preferred technical solution of the present invention: the preparation method of described styrene rectification system Scale inhibitors, comprises the steps:
The first step: take sodium ethylenediamine tetramethylenephosphonate, sodium polyacrylate, triethylene tetramine, formaldehyde, distilled water, phosphorus trichloride, oxidation inhibitor, sodium hydroxide, Amino Trimethylene Phosphonic Acid, hexamethylenediaminetetramethylene tetramethylene phosphonic acid and nitrophenol polymerization inhibitor according to parts by weight proportioning;
Second step: add Amino Trimethylene Phosphonic Acid and distilled water in the four-hole boiling flask that electric mixer, dropping funnel, thermometer and reflux condensing tube are housed, be heated to 60-80 DEG C, stir 10-30min, drip sodium ethylenediamine tetramethylenephosphonate and sodium polyacrylate, be warming up to 70-90 DEG C, reaction 2-6h;
3rd step: add quadrol, sodium hydroxide, triethylene tetramine and hexamethylenediaminetetramethylene tetramethylene phosphonic acid, be warming up to 80-100 DEG C, reaction 3-5h;
4th step: be warming up to 100-120 DEG C, add surplus stock, stirs 90-140min, obtains styrene rectification system Scale inhibitors.
beneficial effect:
A kind of styrene rectification system Scale inhibitors of the present invention and preparation method thereof adopts above technical scheme compared with prior art, there is following technique effect: 1, product effectively suppresses the generation that in the middle of styrene rectification system, dirt is dirty, extend the cycle of operation of styrene device; 2, the interpolation concentration of Scale inhibitors is the 0.00001%-0.0001% of phenyl ethylene rectification tower inlet amount; 3, Scale inhibitors usage quantity is few, and save use cost, scale inhibition performance reaches 98-100%, effectively can not only suppress styrene polymerization, can also reduce styrene tar and produce; 4, effect is lasting, and place one month for 50-60 DEG C, scale inhibition effect 98-100%, temperature resistance and scale inhibition good stability, corrosion inhibition is good, with low cost, simple to operate, and in building-up process, no waste mine produces, and the widespread production not division of history into periods can replace current material.
Embodiment
embodiment 1:
Sodium ethylenediamine tetramethylenephosphonate 10 parts is taken according to parts by weight proportioning; Sodium polyacrylate 5 parts; Triethylene tetramine 30 parts; 25 parts, formaldehyde; Distilled water 100 parts; Phosphorus trichloride 20 parts; Tert.-butyl phenol 10 parts; 15 parts, sodium hydroxide; Amino Trimethylene Phosphonic Acid 8 parts; Hexamethylenediaminetetramethylene tetramethylene phosphonic acid is 4 parts; 2,4-DNP 20 parts.
Amino Trimethylene Phosphonic Acid and distilled water is added in the four-hole boiling flask that electric mixer, dropping funnel, thermometer and reflux condensing tube are housed, be heated to 60 DEG C, stir 10min, drip sodium ethylenediamine tetramethylenephosphonate and sodium polyacrylate, be warming up to 70 DEG C, reaction 2h.
Add quadrol, sodium hydroxide, triethylene tetramine and hexamethylenediaminetetramethylene tetramethylene phosphonic acid, be warming up to 80 DEG C, reaction 3h, is warming up to 100 DEG C, adds surplus stock, stirs 90min, obtains styrene rectification system Scale inhibitors.
Product effectively suppresses the generation that in the middle of styrene rectification system, dirt is dirty, extends the cycle of operation of styrene device; The interpolation concentration of Scale inhibitors is 0.0001% of phenyl ethylene rectification tower inlet amount; Effect is lasting, places one month for 50 DEG C, scale inhibition effect 98%.
embodiment 2:
Sodium ethylenediamine tetramethylenephosphonate 30 parts is taken according to parts by weight proportioning; Sodium polyacrylate 25 parts; Triethylene tetramine 50 parts; 45 parts, formaldehyde; Distilled water 100 parts; Phosphorus trichloride 40 parts; Tert.-butyl phenol 30 parts; 35 parts, sodium hydroxide; Amino Trimethylene Phosphonic Acid 12 parts; Hexamethylenediaminetetramethylene tetramethylene phosphonic acid is 16 parts; 2,4-DNP 60 parts.
Amino Trimethylene Phosphonic Acid and distilled water is added in the four-hole boiling flask that electric mixer, dropping funnel, thermometer and reflux condensing tube are housed, be heated to 80 DEG C, stir 30min, drip sodium ethylenediamine tetramethylenephosphonate and sodium polyacrylate, be warming up to 90 DEG C, reaction 6h.
Add quadrol, sodium hydroxide, triethylene tetramine and hexamethylenediaminetetramethylene tetramethylene phosphonic acid, be warming up to 100 DEG C, reaction 5h, is warming up to 120 DEG C, adds surplus stock, stirs 140min, obtains styrene rectification system Scale inhibitors.
Product effectively suppresses the generation that in the middle of styrene rectification system, dirt is dirty, extends the cycle of operation of styrene device; The interpolation concentration of Scale inhibitors is 0.00008% of phenyl ethylene rectification tower inlet amount; Effect is lasting, places one month for 52 DEG C, scale inhibition effect 98%.
embodiment 3:
Sodium ethylenediamine tetramethylenephosphonate 15 parts is taken according to parts by weight proportioning; Sodium polyacrylate 10 parts; Triethylene tetramine 35 parts; 30 parts, formaldehyde; Distilled water 100 parts; Phosphorus trichloride 25 parts; Tert.-butyl phenol 15 parts; 20 parts, sodium hydroxide; Amino Trimethylene Phosphonic Acid 9 parts; Hexamethylenediaminetetramethylene tetramethylene phosphonic acid is 6 parts; 2,6-dinitro-p-cresol 30 parts.
Amino Trimethylene Phosphonic Acid and distilled water is added in the four-hole boiling flask that electric mixer, dropping funnel, thermometer and reflux condensing tube are housed, be heated to 60 DEG C, stir 10min, drip sodium ethylenediamine tetramethylenephosphonate and sodium polyacrylate, be warming up to 70 DEG C, reaction 2h.
Add quadrol, sodium hydroxide, triethylene tetramine and hexamethylenediaminetetramethylene tetramethylene phosphonic acid, be warming up to 80 DEG C, reaction 3h, is warming up to 100 DEG C, adds surplus stock, stirs 90min, obtains styrene rectification system Scale inhibitors.
Product effectively suppresses the generation that in the middle of styrene rectification system, dirt is dirty, extends the cycle of operation of styrene device; The interpolation concentration of Scale inhibitors is 0.00005% of phenyl ethylene rectification tower inlet amount; Effect is lasting, places one month for 55 DEG C, scale inhibition effect 99%.
embodiment 4:
Sodium ethylenediamine tetramethylenephosphonate 25 parts is taken according to parts by weight proportioning; Sodium polyacrylate 20 parts; Triethylene tetramine 45 parts; 40 parts, formaldehyde; Distilled water 100 parts; Phosphorus trichloride 35 parts; 2,6 di t butyl phenol 25 parts; 30 parts, sodium hydroxide; Amino Trimethylene Phosphonic Acid 11 parts; Hexamethylenediaminetetramethylene tetramethylene phosphonic acid is 12 parts; 2,6-dinitro-p-cresol 50 parts.
Amino Trimethylene Phosphonic Acid and distilled water is added in the four-hole boiling flask that electric mixer, dropping funnel, thermometer and reflux condensing tube are housed, be heated to 80 DEG C, stir 30min, drip sodium ethylenediamine tetramethylenephosphonate and sodium polyacrylate, be warming up to 90 DEG C, reaction 6h.
Add quadrol, sodium hydroxide, triethylene tetramine and hexamethylenediaminetetramethylene tetramethylene phosphonic acid, be warming up to 100 DEG C, reaction 5h, is warming up to 120 DEG C, adds surplus stock, stirs 140min, obtains styrene rectification system Scale inhibitors.
Product effectively suppresses the generation that in the middle of styrene rectification system, dirt is dirty, extends the cycle of operation of styrene device; The interpolation concentration of Scale inhibitors is 0.00003% of phenyl ethylene rectification tower inlet amount; Effect is lasting, places one month for 58 DEG C, scale inhibition effect 99%.
embodiment 5:
Sodium ethylenediamine tetramethylenephosphonate 20 parts is taken according to parts by weight proportioning; Sodium polyacrylate 15 parts; Triethylene tetramine 40 parts; 35 parts, formaldehyde; Distilled water 100 parts; Phosphorus trichloride 30 parts; 2,6 di t butyl phenol 20 parts; 25 parts, sodium hydroxide; Amino Trimethylene Phosphonic Acid 10 parts; Hexamethylenediaminetetramethylene tetramethylene phosphonic acid is 10 parts; 2,6-dinitro-p-cresol 40 parts.
Amino Trimethylene Phosphonic Acid and distilled water is added in the four-hole boiling flask that electric mixer, dropping funnel, thermometer and reflux condensing tube are housed, be heated to 70 DEG C, stir 20min, drip sodium ethylenediamine tetramethylenephosphonate and sodium polyacrylate, be warming up to 80 DEG C, reaction 4h.
Add quadrol, sodium hydroxide, triethylene tetramine and hexamethylenediaminetetramethylene tetramethylene phosphonic acid, be warming up to 90 DEG C, reaction 4h, is warming up to 110 DEG C, adds surplus stock, stirs 120min, obtains styrene rectification system Scale inhibitors.
Product effectively suppresses the generation that in the middle of styrene rectification system, dirt is dirty, extends the cycle of operation of styrene device; The interpolation concentration of Scale inhibitors is 0.00001% of phenyl ethylene rectification tower inlet amount; Effect is lasting, places one month for 60 DEG C, scale inhibition effect 100%.
Composition all components in above embodiment all can business be bought.
Above-described embodiment is just for setting forth content of the present invention, instead of restriction, and any change therefore in the implication suitable with claims of the present invention and scope, all should think to be included in the scope of claims.
Claims (6)
1. a styrene rectification system Scale inhibitors, is characterized in that the raw materials by weight portion proportioning of described styrene rectification system Scale inhibitors is as follows: sodium ethylenediamine tetramethylenephosphonate 10-30 part; Sodium polyacrylate 5-25 part; Triethylene tetramine 30-50 part; Formaldehyde 25-45 part; Distilled water 100 parts; Phosphorus trichloride 20-40 part; Oxidation inhibitor 10-30 part; Sodium hydroxide 15-35 part; Amino Trimethylene Phosphonic Acid 8-12 part; Hexamethylenediaminetetramethylene tetramethylene phosphonic acid is 4-16 part; Nitrophenol polymerization inhibitor 20-60 part.
2. a kind of styrene rectification system Scale inhibitors according to claim 1, is characterized in that described styrene rectification system Scale inhibitors raw materials by weight portion proportioning is as follows: sodium ethylenediamine tetramethylenephosphonate 15-25 part; Sodium polyacrylate 10-20 part; Triethylene tetramine 35-45 part; Formaldehyde 30-40 part; Distilled water 100 parts; Phosphorus trichloride 25-35 part; Oxidation inhibitor 15-25 part; Sodium hydroxide 20-30 part; Amino Trimethylene Phosphonic Acid 9-11 part; Hexamethylenediaminetetramethylene tetramethylene phosphonic acid is 6-12 part; Nitrophenol polymerization inhibitor 30-50 part.
3. a kind of styrene rectification system Scale inhibitors according to claim 1, is characterized in that the raw materials by weight portion proportioning of described styrene rectification system Scale inhibitors is as follows: sodium ethylenediamine tetramethylenephosphonate 20 parts; Sodium polyacrylate 15 parts; Triethylene tetramine 40 parts; 35 parts, formaldehyde; Distilled water 100 parts; Phosphorus trichloride 30 parts; 20 parts, oxidation inhibitor; 25 parts, sodium hydroxide; Amino Trimethylene Phosphonic Acid 10 parts; Hexamethylenediaminetetramethylene tetramethylene phosphonic acid is 10 parts; Nitrophenol polymerization inhibitor 40 parts.
4. a kind of styrene rectification system Scale inhibitors according to claim 1, is characterized in that: described oxidation inhibitor adopts p-tert-butylphenol or 2,6 di t butyl phenol.
5. a kind of styrene rectification system Scale inhibitors according to claim 1, is characterized in that: described nitrophenol polymerization inhibitor adopts 2,4-DNP or 2,6-dinitro-p-cresol.
6. a preparation method for styrene rectification system Scale inhibitors described in claim 1, is characterized in that, comprise the steps:
The first step: take sodium ethylenediamine tetramethylenephosphonate, sodium polyacrylate, triethylene tetramine, formaldehyde, distilled water, phosphorus trichloride, oxidation inhibitor, sodium hydroxide, Amino Trimethylene Phosphonic Acid, hexamethylenediaminetetramethylene tetramethylene phosphonic acid and nitrophenol polymerization inhibitor according to parts by weight proportioning;
Second step: add Amino Trimethylene Phosphonic Acid and distilled water in the four-hole boiling flask that electric mixer, dropping funnel, thermometer and reflux condensing tube are housed, be heated to 60-80 DEG C, stir 10-30min, drip sodium ethylenediamine tetramethylenephosphonate and sodium polyacrylate, be warming up to 70-90 DEG C, reaction 2-6h;
3rd step: add quadrol, sodium hydroxide, triethylene tetramine and hexamethylenediaminetetramethylene tetramethylene phosphonic acid, be warming up to 80-100 DEG C, reaction 3-5h;
4th step: be warming up to 100-120 DEG C, add surplus stock, stirs 90-140min, obtains styrene rectification system Scale inhibitors.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510368580.4A CN105036369A (en) | 2015-06-30 | 2015-06-30 | Antisludging agent for styrene rectification system and preparation method of antisludging agent |
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| CN201510368580.4A CN105036369A (en) | 2015-06-30 | 2015-06-30 | Antisludging agent for styrene rectification system and preparation method of antisludging agent |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101838058A (en) * | 2009-12-31 | 2010-09-22 | 上海良田化工有限公司 | Scale inhibitor of ethylene device process water system and using method thereof |
| CN102070394A (en) * | 2010-12-22 | 2011-05-25 | 浙江杭化科技有限公司 | Scale inhibitor for styrene rectification system |
| KR20110099592A (en) * | 2010-03-02 | 2011-09-08 | (주) 에이텍정밀화학 | A concrete hydration modulators |
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2015
- 2015-06-30 CN CN201510368580.4A patent/CN105036369A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101838058A (en) * | 2009-12-31 | 2010-09-22 | 上海良田化工有限公司 | Scale inhibitor of ethylene device process water system and using method thereof |
| KR20110099592A (en) * | 2010-03-02 | 2011-09-08 | (주) 에이텍정밀화학 | A concrete hydration modulators |
| CN102070394A (en) * | 2010-12-22 | 2011-05-25 | 浙江杭化科技有限公司 | Scale inhibitor for styrene rectification system |
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Application publication date: 20151111 |