CN109550282A - A kind of this figure of high temperature resistant power plant desulfurization defoaming agent and preparation method thereof - Google Patents
A kind of this figure of high temperature resistant power plant desulfurization defoaming agent and preparation method thereof Download PDFInfo
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- CN109550282A CN109550282A CN201811427905.1A CN201811427905A CN109550282A CN 109550282 A CN109550282 A CN 109550282A CN 201811427905 A CN201811427905 A CN 201811427905A CN 109550282 A CN109550282 A CN 109550282A
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- 239000002518 antifoaming agent Substances 0.000 title claims abstract description 67
- 238000006477 desulfuration reaction Methods 0.000 title claims abstract description 35
- 230000023556 desulfurization Effects 0.000 title claims abstract description 35
- 238000002360 preparation method Methods 0.000 title claims abstract description 14
- 229920000570 polyether Polymers 0.000 claims abstract description 86
- 239000004721 Polyphenylene oxide Substances 0.000 claims abstract description 77
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 51
- 239000001257 hydrogen Substances 0.000 claims abstract description 51
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 48
- 239000003921 oil Substances 0.000 claims abstract description 44
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 41
- 239000010703 silicon Substances 0.000 claims abstract description 41
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 41
- -1 aliphatic ester compound Chemical class 0.000 claims abstract description 40
- 125000003903 2-propenyl group Chemical group [H]C([*])([H])C([H])=C([H])[H] 0.000 claims abstract description 38
- 229920005862 polyol Polymers 0.000 claims abstract description 38
- 150000003077 polyols Chemical class 0.000 claims abstract description 38
- 239000000376 reactant Substances 0.000 claims abstract description 27
- 238000006243 chemical reaction Methods 0.000 claims abstract description 13
- ANXXYABAFAQBOT-UHFFFAOYSA-N dodecyl-methyl-bis(trimethylsilyloxy)silane Chemical compound CCCCCCCCCCCC[Si](C)(O[Si](C)(C)C)O[Si](C)(C)C ANXXYABAFAQBOT-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000003995 emulsifying agent Substances 0.000 claims abstract description 9
- 150000001298 alcohols Chemical class 0.000 claims abstract description 8
- 239000000839 emulsion Substances 0.000 claims abstract description 6
- 238000003541 multi-stage reaction Methods 0.000 claims abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 25
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 22
- 239000003054 catalyst Substances 0.000 claims description 20
- 238000003756 stirring Methods 0.000 claims description 20
- 230000006837 decompression Effects 0.000 claims description 14
- 239000007788 liquid Substances 0.000 claims description 14
- 229910052697 platinum Inorganic materials 0.000 claims description 11
- 239000002994 raw material Substances 0.000 claims description 11
- 235000014113 dietary fatty acids Nutrition 0.000 claims description 10
- 239000000194 fatty acid Substances 0.000 claims description 10
- 229930195729 fatty acid Natural products 0.000 claims description 10
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 9
- 230000002378 acidificating effect Effects 0.000 claims description 9
- 150000004665 fatty acids Chemical class 0.000 claims description 9
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 8
- 229920002545 silicone oil Polymers 0.000 claims description 8
- 229920002651 Polysorbate 85 Polymers 0.000 claims description 7
- 229940113171 polysorbate 85 Drugs 0.000 claims description 7
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims description 6
- 239000006185 dispersion Substances 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 4
- GLDOVTGHNKAZLK-UHFFFAOYSA-N octadecan-1-ol Chemical compound CCCCCCCCCCCCCCCCCCO GLDOVTGHNKAZLK-UHFFFAOYSA-N 0.000 claims description 4
- 150000002431 hydrogen Chemical class 0.000 claims description 3
- 235000010482 polyoxyethylene sorbitan monooleate Nutrition 0.000 claims description 3
- 229920000053 polysorbate 80 Polymers 0.000 claims description 3
- 150000000211 1-dodecanols Chemical class 0.000 claims description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 2
- 229910052799 carbon Inorganic materials 0.000 claims description 2
- 239000006260 foam Substances 0.000 abstract description 31
- 230000000694 effects Effects 0.000 abstract description 11
- 230000005764 inhibitory process Effects 0.000 abstract description 10
- 230000003254 anti-foaming effect Effects 0.000 abstract description 3
- 238000010792 warming Methods 0.000 description 21
- 235000021355 Stearic acid Nutrition 0.000 description 14
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 14
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 14
- 239000008117 stearic acid Substances 0.000 description 14
- 239000002002 slurry Substances 0.000 description 11
- 230000006872 improvement Effects 0.000 description 9
- 239000000284 extract Substances 0.000 description 8
- 238000012360 testing method Methods 0.000 description 8
- 239000003795 chemical substances by application Substances 0.000 description 7
- BXWNKGSJHAJOGX-UHFFFAOYSA-N hexadecan-1-ol Chemical compound CCCCCCCCCCCCCCCCO BXWNKGSJHAJOGX-UHFFFAOYSA-N 0.000 description 7
- 239000000463 material Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- JOXIMZWYDAKGHI-UHFFFAOYSA-N toluene-4-sulfonic acid Chemical compound CC1=CC=C(S(O)(=O)=O)C=C1 JOXIMZWYDAKGHI-UHFFFAOYSA-N 0.000 description 7
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 6
- 235000019738 Limestone Nutrition 0.000 description 5
- 238000010521 absorption reaction Methods 0.000 description 5
- 239000006028 limestone Substances 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 150000005846 sugar alcohols Polymers 0.000 description 4
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 3
- 239000007864 aqueous solution Substances 0.000 description 3
- 230000003009 desulfurizing effect Effects 0.000 description 3
- GVGUFUZHNYFZLC-UHFFFAOYSA-N dodecyl benzenesulfonate;sodium Chemical compound [Na].CCCCCCCCCCCCOS(=O)(=O)C1=CC=CC=C1 GVGUFUZHNYFZLC-UHFFFAOYSA-N 0.000 description 3
- 238000004945 emulsification Methods 0.000 description 3
- 238000007667 floating Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 229910021645 metal ion Inorganic materials 0.000 description 3
- 229940080264 sodium dodecylbenzenesulfonate Drugs 0.000 description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- 235000017858 Laurus nobilis Nutrition 0.000 description 2
- 229920001214 Polysorbate 60 Polymers 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- 235000005212 Terminalia tomentosa Nutrition 0.000 description 2
- 244000125380 Terminalia tomentosa Species 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical class [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 239000003546 flue gas Substances 0.000 description 2
- 238000009472 formulation Methods 0.000 description 2
- 238000001802 infusion Methods 0.000 description 2
- 239000006210 lotion Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000012875 nonionic emulsifier Substances 0.000 description 2
- 239000001818 polyoxyethylene sorbitan monostearate Substances 0.000 description 2
- 235000010989 polyoxyethylene sorbitan monostearate Nutrition 0.000 description 2
- 229940113124 polysorbate 60 Drugs 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 description 1
- LQJBNNIYVWPHFW-UHFFFAOYSA-N 20:1omega9c fatty acid Natural products CCCCCCCCCCC=CCCCCCCCC(O)=O LQJBNNIYVWPHFW-UHFFFAOYSA-N 0.000 description 1
- QSBYPNXLFMSGKH-UHFFFAOYSA-N 9-Heptadecensaeure Natural products CCCCCCCC=CCCCCCCCC(O)=O QSBYPNXLFMSGKH-UHFFFAOYSA-N 0.000 description 1
- 239000005642 Oleic acid Substances 0.000 description 1
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 description 1
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000005587 bubbling Effects 0.000 description 1
- 150000007942 carboxylates Chemical class 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000001804 emulsifying effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 description 1
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 description 1
- 230000002688 persistence Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 230000004083 survival effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D19/00—Degasification of liquids
- B01D19/02—Foam dispersion or prevention
- B01D19/04—Foam dispersion or prevention by addition of chemical substances
- B01D19/0404—Foam dispersion or prevention by addition of chemical substances characterised by the nature of the chemical substance
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D19/00—Degasification of liquids
- B01D19/02—Foam dispersion or prevention
- B01D19/04—Foam dispersion or prevention by addition of chemical substances
- B01D19/0404—Foam dispersion or prevention by addition of chemical substances characterised by the nature of the chemical substance
- B01D19/0409—Foam dispersion or prevention by addition of chemical substances characterised by the nature of the chemical substance compounds containing Si-atoms
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Dispersion Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Degasification And Air Bubble Elimination (AREA)
- Emulsifying, Dispersing, Foam-Producing Or Wetting Agents (AREA)
- Silicon Polymers (AREA)
Abstract
The present invention provides a kind of this figure of high temperature resistant power plant desulfurization defoaming agent, is emulsion made of being mixed with after stepwise reaction, the following component comprising corresponding following parts by weight: polyether polyol and 50-80 parts of aliphatic ester compound reactant；Silicon oil of low hydrogen content with 10-25 parts of allyl polyether addition product；1-5 parts of higher alcohols；2-10 parts of emulsifier；1-3 parts of laurylmethicone.Also provide the preparation method of this figure of high temperature resistant power plant desulfurization defoaming agent, comprising the following steps: S1: reaction preparation polyether polyol and aliphatic ester compound reactant；S2: reaction prepares silicon oil of low hydrogen content and allyl polyether addition product；S3: it is mixed with high temperature resistant this figure power plant desulfurization defoaming agent.The purpose of the present invention is to provide a kind of antifoaming speeds faster, and the foam inhibition time is longer, better this figure of high temperature resistant power plant desulfurization defoaming agent of effect and preparation method thereof.
Description
Technical field
The present invention relates to defoaming agent technical field, in particular to a kind of this figure of high temperature resistant power plant desulfurization defoaming agent and its system
Preparation Method.
Background technique
Due to history, policy, technology, resource etc., China's thermal power generation is more than 60% or more.Adjoint Environmental Factors,
For better environment for human survival, pollutant sulfur-containing smoke gas caused by fire coal needs to carry out desulfurization process in thermal power generation.And
The desulfurizing agent that power plant desulfurization processing at present mainly uses is lime stone slurry, in sweetening process, slurries meeting in smoke absorption tower
Because of exhaust gas dust, oil content in flue gas, burn insufficient, metal ion in slurries, and the factors such as water quality cause foam, and foam is not
The absorptivity on absorption tower is only influenced, and it is inaccurate to will lead to liquid level, the problems such as overflow.Foam is eliminated to reduce, guarantees desulfurizer
Normal operation, usual way is that defoaming agent is pumped into absorption tower.
Commonly using desulfurization defoaming agent in the market is polyether-type and organosilicon emulsion-type.Polyether-type is typically chosen polyalcohol polyether and disappears
Infusion, its thermal stability is good, and resistance to compression is anti-shearing, is present in slurries in the form of molecule after addition, changes the surface of slurries
Power can inhibit foam generation, and cannot quickly eliminate to the foam that slurry surface has generated；Organosilicon emulsion-type is to utilize to have
The lower surface tension characteristics of machine silicon, after Over emulsfication slurry surface can rapid dispersion eliminate foam.The disadvantage is that in soda acid ring
Long duration defoaming is unable under border.
For the deficiency of above-mentioned existing defoaming agent, urgent need studies a kind of antifoaming speed faster, the longer defoaming of foam inhibition time
Agent.
Summary of the invention
The purpose of the present invention is to provide a kind of antifoaming speeds faster, and the foam inhibition time is longer, the better high temperature resistant sheet of effect
Figure power plant desulfurization defoaming agent and preparation method thereof.
Above-mentioned technical purpose of the invention has the technical scheme that a kind of this figure of high temperature resistant power plant
Desulfurization defoaming agent is emulsion made of being mixed with after stepwise reaction, comprising corresponding following parts by weight such as the following group
Point:
By using above-mentioned technical proposal, high temperature resistant this figure power plant desulfurization defoaming agent includes polyether polyol and fatty acid
Carboxylate reactant, silicon oil of low hydrogen content and allyl polyether addition product, higher alcohols and emulsifier, of the invention is to solve
During power plant desulfurization, desulfurizing agent lime stone slurry generates foam due to exhaust gas dust, metal ion and water quality etc., influences
Defoaming agent is added in the problem of absorptivity of subsequent absorption tower in lime stone slurry, eliminates foam and foam is inhibited to generate, thus
Subsequent technique is not influenced, present invention employs the polyether polyol and aliphatic ester compound reactant, low Silicon Containing Hydrogen of reaction synthesis
Oil and allyl polyether addition product, so that defoaming agent had not only had hydrophilic radical but also had lipophilic group, and defoaming made of it
Agent combines the advantages of both organic silicone oil and polyether polyol.Polyether polyol acts not only as nonionic emulsifier use
Reduce the dosage of emulsifier in emulsification organic silicone oil, and its stability of emulsion can be increased, in addition, polyethers itself have it is turbid
Point, be higher than cloud point at a temperature of, polyethers present defoaming effect, there is its manufactured defoaming agent at high temperature and preferably disappear
Bubble, foam inhibition effect.
It as a further improvement of the present invention, according to parts by weight, further include 10-15 parts of polydiethylsiloxane.
It as a further improvement of the present invention, according to parts by weight, further include 2-5 parts of Rikemal PO 200.
As a further improvement of the present invention, the higher alcohols be 16 carbon alcohol, octadecanol, two Lauryl Alcohols it is any
One or more kinds of mixtures.
As a further improvement of the present invention, emulsifier is any one of polysorbate60, Tween 80, sorbimacrogol oleate100, polysorbate85
Or more than one mixture.
The present invention also provides a kind of preparation methods of this figure of high temperature resistant power plant desulfurization defoaming agent, it is characterised in that: including
Following steps:
S1: 60-95 parts of polyether polyol are taken, 5-40 parts of fatty acid, 0.2-1.0 parts of acidic catalyst, stirs and protects in kettle
It holds 130-160 DEG C of reaction 4-8h of temperature, and depressurizes and pull out that the water reflected obtains polyether polyol and aliphatic ester compound is anti-
Answer object；
S2: taking containing silicon oil of low hydrogen content and allyl polyether, under molar ratio 1:1.2 proportion, 80-120 DEG C of stirring heating, to
After vacuum extracts raw material institute water content out, 5-20ppm platinum catalyst isopropanol or platinum catalyst ethylene glycol solution is added.To anti-
Answer it is transparent after, keep the temperature 3 hours, cooling obtain silicon oil of low hydrogen content and allyl polyether addition product；
S3: polyether polyol and aliphatic ester compound reactant, silicon oil of low hydrogen content and allyl polyether addition product, emulsification are taken
Agent, higher alcohols, polydiethylsiloxane, laurylmethicone, Rikemal PO 200；Quickly stirring is equal for 70 DEG C of heating
It is even, cooling, then disperse through high speed disperser to obtain for 10-40 minutes stable homogeneous liquid, that is, resistance under the conditions of 10000-50000r/min
High-temperature body type power plant desulfurization defoaming agent.
As a further improvement of the present invention, polyether polyol described in step S1 be L61, L62, PPG600, PPG1000,
One kind of GPE or its several mixture.
As a further improvement of the present invention, it is 0.08%- that the silicon oil of low hydrogen content in the step S2, which is hydrogen content,
0.20% containing hydrogen silicone oil.
As a further improvement of the present invention, in the step S3 reactant raw material components and parts by weight are as follows: polyethers
Polyalcohol with 50-80 part of aliphatic ester compound reactant, silicon oil of low hydrogen content and 10-25 parts of allyl polyether addition product, emulsifier
2-10 parts, 1-5 parts of higher alcohols, 10-15 parts of polydiethylsiloxane, 1-3 parts of laurylmethicone, two oleic acid of propylene glycol
2-5 parts of ester.
Compared with prior art, the invention has the following advantages:
1. invention is to solve during power plant desulfurization, desulfurizing agent lime stone slurry is due to flue gas powder
The problem of reasons such as dirt, metal ion and water quality generate foam, influence the absorptivity of subsequent absorption tower adds in lime stone slurry
Enter defoaming agent, eliminate foam and foam is inhibited to generate, to not influence subsequent technique, present invention employs the polyethers of reaction synthesis
Polyalcohol and aliphatic ester compound reactant, silicon oil of low hydrogen content and allyl polyether addition product so that defoaming agent both had it is hydrophilic
The advantages of group has lipophilic group again, and its manufactured defoaming agent combines both organic silicone oil and polyether polyol.It is poly-
Ethoxylated polyhydric alcohol acts not only as nonionic emulsifier for emulsifying organic silicone oil to reduce the dosage of emulsifier, and can increase
Add its stability of emulsion, in addition, polyethers itself has cloud point, be higher than cloud point at a temperature of, defoaming effect is presented in polyethers, makes it
Manufactured defoaming agent has preferable defoaming, foam inhibition effect at high temperature.
2. the present invention has branch using laurylmethicone, increase and viscosity reduction with shearing force, dispersibility
Increase, promotes the defoaming activity of silicon oil of low hydrogen content, make defoaming agent that excellent brokenly bubble be presented, and under the high temperature conditions, laurel
Base polymethyl siloxane can improve polyether polyol and add with aliphatic ester compound reactant and silicon oil of low hydrogen content with allyl polyether
At the chemical stability of object, the defoaming persistence of defoaming agent is improved.
3. the polydiethylsiloxane that the present invention uses can be improved with self-emulsifying and high temperature resistance, can and it is low hydrogeneous
Silicone oil and allyl polyether addition product are compound, improve the emulsification degree of silicon oil of low hydrogen content and allyl polyether addition product, make lotion
Finer and smoother stabilization improves the stability of defoaming agent under the high temperature conditions, meanwhile, also expand the adaptation range of lotion.
4. Rikemal PO 200 has defoaming effect early period, to tiny difficulty present invention employs Rikemal PO 200
The vesicle to disappear has good defoaming capacity, and brokenly bubble speed is fast, and cooperation silicon oil of low hydrogen content and allyl polyether addition product and polyethers are more
The foam-inhibiting effect of first alcohol and aliphatic ester compound reactant, greatly improves the comprehensive performance of product.
5. defoaming agent stability of the present invention is good, polyethers carboxylate is taken full advantage of, the low surface tension of silicon polyethers, chemistry is surely
It is qualitative, it is without side-effects to bubbling system.
6. product of the present invention additive amount in use is few, have excellent performance, can compare favourably with imported product, and price it is opposite into
Mouth product has a clear superiority.
Specific embodiment
Technical solution of the present invention is clearly and completely described below in conjunction with specific embodiment.Obviously, described
Embodiment be only a part of the embodiments of the present invention, instead of all the embodiments.Based on the embodiment of the present invention, ability
Domain those of ordinary skill every other embodiment obtained without creative efforts, belongs to guarantor of the present invention
The range of shield.
The present invention discloses a kind of this figure of high temperature resistant power plant desulfurization defoaming agents and preparation method thereof, and specific embodiment is such as
Under.
Embodiment 1
S1: taking polyether polyol L61100g, L62100g, and fatty acid is stearic acid 16.7g in 500ml three-necked flask,
It is gradually warmed up to 70 DEG C and is completely dissolved to stearic acid, 0.67g p-methyl benzenesulfonic acid is added as acidic catalyst, stirs and protects in kettle
It holds 130-160 DEG C of reaction 4-8h of temperature, and depressurizes and pull out that the water reflected obtains polyether polyol and aliphatic ester compound is anti-
Answer object；
S2: taking hydrogen content is 0.08% silicon oil of low hydrogen content 100g, and the allyl polyether 30g that molecular weight is 350 is in 250ml
In three-necked flask, stirring is warming up to 80 DEG C, and after vacuum extracts raw material institute water content out, 5ppm platinum catalyst isopropanol is added,
130 DEG C are warming up to, after material reacts transparent by muddiness, keeps the temperature 3 hours, then dial through decompression and remove low boilers, Temperature fall obtains
To silicon oil of low hydrogen content and allyl polyether addition product；
S3: polyether polyol and aliphatic ester compound reactant 200g, silicon oil of low hydrogen content and allyl polyether addition product are taken
40g, polysorbate60 8g, hexadecanol 4g, polydiethylsiloxane 40g, laurylmethicone 4g, Rikemal PO 200 8g
It is warming up to 70 DEG C in 250ml three-necked flask, then disperses to be prepared into for 30 minutes under the conditions of 10000r/min through high speed disperser
To stable homogeneous liquid i.e. this figure power plant desulfurization defoaming agent.
Embodiment 2
S1: taking polyether polyol PPG600100g, PPG1000100g, and fatty acid is stearic acid 84.2g in tri- mouthfuls of 500ml
It in flask, is gradually warmed up to 70 DEG C and is completely dissolved to stearic acid, 2.1g p-methyl benzenesulfonic acid is added as acidic catalyst, in kettle
Stirring keeps 130-160 DEG C of reaction 4-8h of temperature, and decompression pulls out the water reflected and obtains polyether polyol and aliphatic ester
Compound reactant；
S2: taking hydrogen content is 0.2% silicon oil of low hydrogen content 100g, and the allyl polyether 30g that molecular weight is 350 is in 250ml
In three-necked flask, stirring is warming up to 120 DEG C, and after vacuum extracts raw material institute water content out, 20ppm platinum catalyst isopropyl is added
Alcohol is warming up to 130 DEG C, after material reacts transparent by muddiness, keeps the temperature 3 hours, then dial through decompression and remove low boilers, naturally drop
Temperature obtains silicon oil of low hydrogen content and allyl polyether addition product；
S3: polyether polyol and aliphatic ester compound reactant 200g, silicon oil of low hydrogen content and allyl polyether addition product are taken
100g, Tween 80 and sorbimacrogol oleate100 total 25g, hexadecanol 12.5g, polydiethylsiloxane 37.5g, laurylmethicone
7.5g, Rikemal PO 200 12.5g are warming up to 70 DEG C in 250ml three-necked flask, then through high speed disperser in 10000r/
Disperse stable homogeneous liquid i.e. this figure power plant desulfurization defoaming agent to be prepared in 30 minutes under the conditions of min.
Embodiment 3
S1: taking polyether polyol GPE200g, and fatty acid is stearic acid 57.1g in 500ml three-necked flask, is gradually warmed up
It is completely dissolved to 70 DEG C to stearic acid, 1.43g p-methyl benzenesulfonic acid is added as acidic catalyst, stirring keeps temperature in kettle
130-160 DEG C of reaction 4-8h, and decompression pulls out the water reflected and obtains polyether polyol and aliphatic ester compound reactant；
S2: taking hydrogen content is 0.1% silicon oil of low hydrogen content 100g, and the allyl polyether 30g that molecular weight is 350 is in 250ml
In three-necked flask, stirring is warming up to 100 DEG C, and after vacuum extracts raw material institute water content out, 10ppm platinum catalyst isopropyl is added
Alcohol is warming up to 130 DEG C, after material reacts transparent by muddiness, keeps the temperature 3 hours, then dial through decompression and remove low boilers, naturally drop
Temperature obtains silicon oil of low hydrogen content and allyl polyether addition product；
S3: polyether polyol and aliphatic ester compound reactant 200g, silicon oil of low hydrogen content and allyl polyether addition product are taken
52.6g, polysorbate85 24.6g, hexadecanol 9.23g, polydiethylsiloxane 36.92g, laurylmethicone 6.15g, third
Glycol dioleate 9.23g is warming up to 70 DEG C in 250ml three-necked flask, then through high speed disperser under the conditions of 10000r/min
Stable homogeneous liquid i.e. this figure power plant desulfurization defoaming agent is prepared in 30 minutes in dispersion.
Embodiment 4
S1: taking polyether polyol GPE200g, and fatty acid is stearic acid 57.1g in 500ml three-necked flask, is gradually warmed up
It is completely dissolved to 70 DEG C to stearic acid, 1.43g p-methyl benzenesulfonic acid is added as acidic catalyst, stirring keeps temperature in kettle
130-160 DEG C of reaction 4-8h, and decompression pulls out the water reflected and obtains polyether polyol and aliphatic ester compound reactant；
S2: taking hydrogen content is 0.1% silicon oil of low hydrogen content 100g, and the allyl polyether 30g that molecular weight is 350 is in 250ml
In three-necked flask, stirring is warming up to 100 DEG C, and after vacuum extracts raw material institute water content out, 10ppm platinum catalyst isopropyl is added
Alcohol is warming up to 130 DEG C, after material reacts transparent by muddiness, keeps the temperature 3 hours, then dial through decompression and remove low boilers, naturally drop
Temperature obtains silicon oil of low hydrogen content and allyl polyether addition product；
S3: polyether polyol and aliphatic ester compound reactant 200g, silicon oil of low hydrogen content and allyl polyether addition product are taken
52.6g, polysorbate85 24.6g, hexadecanol 9.23g, polydiethylsiloxane 36.92g are warming up to 70 in 250ml three-necked flask
DEG C, then disperse that stable homogeneous liquid i.e. this figure power plant is prepared within 30 minutes under the conditions of 10000r/min through high speed disperser
Desulfurization defoaming agent.
Embodiment 5
S1: taking polyether polyol GPE200g, and fatty acid is stearic acid 57.1g in 500ml three-necked flask, is gradually warmed up
It is completely dissolved to 70 DEG C to stearic acid, 1.43g p-methyl benzenesulfonic acid is added as acidic catalyst, stirring keeps temperature in kettle
130-160 DEG C of reaction 4-8h, and decompression pulls out the water reflected and obtains polyether polyol and aliphatic ester compound reactant；
S2: taking hydrogen content is 0.1% silicon oil of low hydrogen content 100g, and the allyl polyether 30g that molecular weight is 350 is in 250ml
In three-necked flask, stirring is warming up to 100 DEG C, and after vacuum extracts raw material institute water content out, 10ppm platinum catalyst isopropyl is added
Alcohol is warming up to 130 DEG C, after material reacts transparent by muddiness, keeps the temperature 3 hours, then dial through decompression and remove low boilers, naturally drop
Temperature obtains silicon oil of low hydrogen content and allyl polyether addition product；
S3: polyether polyol and aliphatic ester compound reactant 200g, silicon oil of low hydrogen content and allyl polyether addition product are taken
52.6g, polysorbate85 24.6g, hexadecanol 9.23g, laurylmethicone 6.15g are warming up in 250ml three-necked flask
70 DEG C, then disperse that stable homogeneous liquid i.e. this figure electricity is prepared within 30 minutes under the conditions of 10000r/min through high speed disperser
Factory's desulfurization defoaming agent.
Embodiment 6
S1: taking polyether polyol GPE200g, and fatty acid is stearic acid 57.1g in 500ml three-necked flask, is gradually warmed up
It is completely dissolved to 70 DEG C to stearic acid, 1.43g p-methyl benzenesulfonic acid is added as acidic catalyst, stirring keeps temperature in kettle
130-160 DEG C of reaction 4-8h, and decompression pulls out the water reflected and obtains polyether polyol and aliphatic ester compound reactant；
S2: taking hydrogen content is 0.1% silicon oil of low hydrogen content 100g, and the allyl polyether 30g that molecular weight is 350 is in 250ml
In three-necked flask, stirring is warming up to 100 DEG C, and after vacuum extracts raw material institute water content out, 10ppm platinum catalyst isopropyl is added
Alcohol is warming up to 130 DEG C, after material reacts transparent by muddiness, keeps the temperature 3 hours, then dial through decompression and remove low boilers, naturally drop
Temperature obtains silicon oil of low hydrogen content and allyl polyether addition product；
S3: polyether polyol and aliphatic ester compound reactant 200g, silicon oil of low hydrogen content and allyl polyether addition product are taken
52.6g, polysorbate85 24.6g, hexadecanol 9.23g, Rikemal PO 200 9.23g are warming up to 70 DEG C in 250ml three-necked flask,
It is de- to disperse to be prepared for 30 minutes stable homogeneous liquid i.e. this figure power plant under the conditions of 10000r/min through high speed disperser again
Sulphur defoaming agent.
Comparative example 1
S1: taking polyether polyol GPE200g, and fatty acid is stearic acid 57.1g in 500ml three-necked flask, is gradually warmed up
It is completely dissolved to 70 DEG C to stearic acid, 1.43g p-methyl benzenesulfonic acid is added as acidic catalyst, stirring keeps temperature in kettle
130-160 DEG C of reaction 4-8h, and decompression pulls out the water reflected and obtains polyether polyol and aliphatic ester compound reactant；
S2: taking hydrogen content is 0.1% silicon oil of low hydrogen content 100g, and the allyl polyether 30g that molecular weight is 350 is in 250ml
In three-necked flask, stirring is warming up to 100 DEG C, and after vacuum extracts raw material institute water content out, 10ppm platinum catalyst isopropyl is added
Alcohol is warming up to 130 DEG C, after material reacts transparent by muddiness, keeps the temperature 3 hours, then dial through decompression and remove low boilers, naturally drop
Temperature obtains silicon oil of low hydrogen content and allyl polyether addition product；
S3: polyether polyol and aliphatic ester compound reactant 200g, silicon oil of low hydrogen content and allyl polyether addition product are taken
52.6g, polysorbate85 24.6g, hexadecanol 9.23g is warming up to 70 DEG C in 250ml three-necked flask, then exists through high speed disperser
Disperse stable homogeneous liquid i.e. this figure power plant desulfurization defoaming agent to be prepared in 30 minutes under the conditions of 10000r/min.
To defoaming agent test sample in embodiment 1- embodiment 3 and comparative example 1, defoamed according to following measurement standard test
Agent performance:
1, centrifugal stability measures
It takes 7mL defoaming agent in centrifuge tube, is centrifuged 30min in the supercentrifuge that revolving speed is 3000r/min, take out
It sees whether floating oil or layering, if floating oil is not stratified, shows that defoaming agent is stablized yet, if occurring being layered or floating oil phenomenon, show
Defoaming agent is unstable.
2, dispersibility measurement in water
A small amount of defoaming agent is added in the test tube equipped with pure water, is gently swayed, point of observation defoaming agent emulsion in water
Dissipating situation, (diffusion is " excellent " rapidly；Dispersion, and liquid level have the floccule of a small amount of more difficult dispersion be expressed as " in "；It is not easy to disperse,
And more difficult disappear of floccule is " poor ").
3, antifoam performance measures
Sodium dodecyl benzene sulfonate aqueous solution that 30mL mass fraction is 4% is added in 150mL graduated cylinder as foam liquid,
Adapter tube is passed through N2, adjusting flow velocity is about that 3L/min is bubbled, when foam height being made to reach 100mL, 0.025mL defoaming agent is added,
Then quickly the time used in stopwatch record lather collapse, this time are denoted as foam time, and the time is shorter, shows defoaming agent
Defoaming effect is better.
4, suds suppressing properties measure
100mL mass fraction is added in 150mL graduated cylinder to disappear for 4% sodium dodecyl benzene sulfonate aqueous solution and 0.05mL
Infusion defoaming agent, adapter tube are passed through N2, adjusting flow velocity is about that 3L/min is bubbled, and is then quickly occurred used in foam with stopwatch record
Time, this time is denoted as the foam inhibition time, and the time is longer, shows that defoaming agent foam inhibition effect is better.
5, high temperature resistance measures
By the test tube equipped with foam liquid (sodium dodecyl benzene sulfonate aqueous solution that mass fraction is 4%), (advance demand flag goes out
At 100mL) it is placed in oil bath pan, being heated to foam liquid temperature is respectively 30,50,80,100 DEG C, then in different temperatures
Lower foam time and the foam inhibition time for measuring defoaming agent with Section 3 and Section 4 method respectively.
The test performance result of defoaming agent such as following table 1- table 2.
The test of 1 various sample different performance of table
Antifoam performance and suds suppressing properties under 2 different temperatures of table
Embodiment 1, embodiment 2 and embodiment 3 are the every test result for changing formulation dosage and being presented, embodiment 4-6
It is to change the test result that substance is added, it can be deduced that, in a certain range, the increase of formulation dosage, the defoaming of defoaming agent
The trend improved can be presented with suds suppressing properties, the properties that can be seen that embodiment 1-3 in Cong Shangbiao 1 are better than comparative example 1,
Polydiethylsiloxane, laurylmethicone is added, Rikemal PO 200 can improve the defoaming and foam inhibition of defoaming agent
Performance, and the water dispersible of defoaming agent can be improved, significantly improve the stability of defoaming agent.
As can be drawn from Table 2 with the raising of ambient temperature, foam time slightly extends, and the foam inhibition time also slightly contracts
It is short, but antifoam performance and suds suppressing properties are better than comparative example 1 for the tolerance of temperature especially high temperature in embodiment 1-3,
The antifoam performance of embodiment 1-3 and suds suppressing properties are still excellent at 100 DEG C, therefore, polydiethylsiloxane in the present invention, laurel
Base polymethyl siloxane, Rikemal PO 200 cooperate with the high-temperature stability for improving defoaming agent.
A kind of this figure of high temperature resistant power plant desulfurization defoaming agent provided by the present invention and preparation method thereof is carried out above
It is discussed in detail.Principle and implementation of the present invention are described for specific embodiment used herein, above embodiments
Explanation be merely used to help understand method and its core concept of the invention.It should be pointed out that for the common of the art
, without departing from the principle of the present invention, can be with several improvements and modifications are made to the present invention for technical staff, these
Improvement and modification are also fallen within the protection scope of the claims of the present invention.
Claims (9)
1. a kind of this figure of high temperature resistant power plant desulfurization defoaming agent, it is characterised in that: be mixed with after stepwise reaction
Emulsion, the following component comprising corresponding following parts by weight:
2. this figure of high temperature resistant power plant desulfurization defoaming agent according to claim 1, it is characterised in that: according to parts by weight,
It further include 10-15 parts of polydiethylsiloxane.
3. this figure of high temperature resistant power plant desulfurization defoaming agent according to claim 1, it is characterised in that: according to parts by weight,
It further include 2-5 parts of Rikemal PO 200.
4. this figure of high temperature resistant power plant desulfurization defoaming agent according to claim 1, it is characterised in that: the higher alcohols are ten
Six carbon alcohol, octadecanol, two Lauryl Alcohols any one or more than one mixture.
5. this figure of high temperature resistant power plant desulfurization defoaming agent according to claim 1, it is characterised in that: the emulsifier is to spit
Warm 60, any one or more than one mixture of Tween 80, sorbimacrogol oleate100, polysorbate85.
6. a kind of preparation method of this figure of high temperature resistant power plant desulfurization defoaming agent according to claim 1, it is characterised in that:
The following steps are included:
S1: 60-95 parts of polyether polyol are taken, 5-40 parts of fatty acid, 0.2-1.0 parts of acidic catalyst, stirring keeps temperature in kettle
130-160 DEG C of reaction 4-8h is spent, and decompression pulls out the water reflected and obtains polyether polyol and aliphatic ester compound reactant；
S2: taking containing silicon oil of low hydrogen content and allyl polyether, under molar ratio 1:1.2 proportion, 80-120 DEG C of stirring heating, to vacuum
After extracting raw material institute water content out, 5-20ppm platinum catalyst isopropanol or platinum catalyst ethylene glycol solution is added, wait react
After bright, 3 hours are kept the temperature, cooling obtains silicon oil of low hydrogen content and allyl polyether addition product；
S3: taking polyether polyol and aliphatic ester compound reactant, silicon oil of low hydrogen content and allyl polyether addition product, emulsifier,
Higher alcohols, polydiethylsiloxane, laurylmethicone, Rikemal PO 200；70 DEG C of heating quickly stirs evenly,
Cooling, then through high speed disperser under conditions of 10000-50000r/min high speed dispersion 30 minutes stable homogeneous liquid, that is, resistance to
High-temperature body type power plant desulfurization defoaming agent.
7. the preparation method of this figure of high temperature resistant power plant desulfurization defoaming agent according to claim 6, it is characterised in that: step
Polyether polyol described in S1 is one kind or its several mixture of L61, L62, PPG600, PPG1000, GPE.
8. the preparation method of this figure of high temperature resistant power plant desulfurization defoaming agent according to claim 6, it is characterised in that: described
Silicon oil of low hydrogen content in step S2 is the containing hydrogen silicone oil that hydrogen content is 0.08%-0.20%.
9. the preparation method of this figure of high temperature resistant power plant desulfurization defoaming agent according to claim 6, it is characterised in that: described
The raw material components and parts by weight of reactant in step S3 are as follows: polyether polyol and 50-80 parts of aliphatic ester compound reactant are low
Containing hydrogen silicone oil with 10-25 parts of allyl polyether addition product, 2-10 parts of emulsifier, 1-5 parts of higher alcohols, polydiethylsiloxane 10-
15 parts, 1-3 parts of laurylmethicone, 2-5 parts of Rikemal PO 200.
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Denomination of invention: A high-temperature resistant native power plant desulfurization defoamer and its preparation method Granted publication date: 20220308 Pledgee: Bank of China Limited Xiangyang Branch Pledgor: Hubei Longsheng Sihai New Material Co.,Ltd. Registration number: Y2024980006288 |