CN113527654A - High-efficiency energy-saving polyether defoaming agent and preparation method thereof - Google Patents
High-efficiency energy-saving polyether defoaming agent and preparation method thereof Download PDFInfo
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- CN113527654A CN113527654A CN202110464417.3A CN202110464417A CN113527654A CN 113527654 A CN113527654 A CN 113527654A CN 202110464417 A CN202110464417 A CN 202110464417A CN 113527654 A CN113527654 A CN 113527654A
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- C08G65/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
- C08G65/02—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring
- C08G65/26—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers and other compounds
- C08G65/2603—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers and other compounds the other compounds containing oxygen
- C08G65/2606—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers and other compounds the other compounds containing oxygen containing hydroxyl groups
- C08G65/2609—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers and other compounds the other compounds containing oxygen containing hydroxyl groups containing aliphatic hydroxyl groups
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Abstract
The invention discloses a high-efficiency energy-saving polyether defoaming agent and a preparation method thereof, wherein the high-efficiency energy-saving polyether defoaming agent comprises 10 parts of methyl silicone oil, 13 parts of n-butyl alcohol, 20-40 parts of polyether polymer mixture, 0.6-2.1 parts of fatty higher alcohol, 0.3-0.5 part of thickening agent, 0.1-0.2 part of catalyst I, 0.1-0.2 part of catalyst II, 0.1-0.2 part of dispersing agent and 0.1-0.3 part of stabilizing agent. According to the invention, the aliphatic high-carbon alcohol is used as the capped hydrophobic chain, the polyether polymer mixture with the hydrophilic chain at intervals is arranged in the middle, the defoaming strength is enhanced, the defoaming speed is increased, the low toxicity is eliminated, various general polyether polyol mixtures are produced by combining the polyether polymer mixture with Propylene Oxide (PO), Butylene Oxide (BO) and Ethylene Oxide (EO) in various combination modes, so that various polyether polyol mixtures can participate in polymerization reaction at the same time, the main chain reaction speed in the reaction process is high, the efficiency is high, the defoaming efficiency of the whole defoaming agent is high, and the energy-saving effect is good.
Description
Technical Field
The invention relates to the field of chemical additives, in particular to an efficient energy-saving polyether defoaming agent and a preparation method thereof.
Background
In the industrial production processes of synthetic latex, paper making, textile, food, fermentation, medicine and the like, a lot of foams and even harmful foams are generated, so that the normal production is influenced, and the foams are eliminated or inhibited by using an antifoaming agent.
However, in the actual use of the prior art, the polyether "330", "PPG" and "GP" polyoxypropylene ethers are not easily dispersed in the fermentation broth due to the hydrophobic chain at the chain end, which causes slow defoaming speed, cannot follow the speed of fermentation foaming, and affects the defoaming effect, and the "GPE", "PPE", "3010", polyoxypropylene ethylene glycol glyceryl ether and the former several defoamers are improved in defoaming performance, but the hydrophilic chain polyoxyethylene chain has low toxicity, so that the phenomena of inhibiting the growth of thalli and killing a small amount of thalli cells occur in the fermentation production, and the fermentation efficiency is affected.
Disclosure of Invention
The invention aims to provide an efficient energy-saving polyether defoaming agent and a preparation method thereof, and aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: the method comprises the following raw materials: 10 parts of methyl silicone oil, 13 parts of n-butyl alcohol, 20-40 parts of polyether polymer mixture, 0.6-2.1 parts of fatty higher alcohol, 0.3-0.5 part of thickening agent, 0.1-0.2 part of catalyst I, 0.1-0.2 part of catalyst II, 0.1-0.2 part of dispersing agent and 0.1-0.3 part of stabilizing agent.
Preferably, the polyether polymer mixture is formed by mixing nine mixtures, wherein the nine mixtures are respectively as follows:
preparing a first mixture by polyaddition reaction of Propylene Oxide (PO), Butylene Oxide (BO) and Ethylene Oxide (EO) simultaneously in the presence of a catalyst;
preparing a mixture II by addition polymerization of Ethylene Oxide (EO), Butylene Oxide (BO) and Propylene Oxide (PO) in the feeding sequence in the presence of a catalyst;
preparing a mixture III by performing addition polymerization on Propylene Oxide (PO), Butylene Oxide (BO) and Ethylene Oxide (EO) in the presence of a catalyst according to the feeding sequence of the PO, the BO and the EO;
propylene Oxide (PO), Butylene Oxide (BO) and Ethylene Oxide (EO) were fed simultaneously, and Ethylene Oxide (EO): propylene Oxide (PO) in a ratio of 2:1 in the presence of a catalyst to produce a mixture iv by polyaddition;
propylene Oxide (PO), Butylene Oxide (BO) and Ethylene Oxide (EO) were fed simultaneously, and Ethylene Oxide (EO): carrying out addition polymerization on Propylene Oxide (PO) in a ratio of 1:2 in the presence of a catalyst to obtain a mixture V;
in the order of addition of Ethylene Oxide (EO), Butylene Oxide (BO) and Propylene Oxide (PO), and Ethylene Oxide (EO): carrying out addition polymerization on Propylene Oxide (PO) at a ratio of 2:1 in the presence of a catalyst to obtain a mixture six;
in the order of addition of Ethylene Oxide (EO), Butylene Oxide (BO) and Propylene Oxide (PO), and Ethylene Oxide (EO): carrying out addition polymerization on Propylene Oxide (PO) in a ratio of 1:2 in the presence of a catalyst to obtain a mixture seven;
in the order of addition of Propylene Oxide (PO), Butylene Oxide (BO) and Ethylene Oxide (EO), and Ethylene Oxide (EO): carrying out addition polymerization on Propylene Oxide (PO) in a ratio of 2:1 in the presence of a catalyst to obtain a mixture eight;
in the order of addition of Propylene Oxide (PO), Butylene Oxide (BO) and Ethylene Oxide (EO), and Ethylene Oxide (EO): propylene Oxide (PO) in a ratio of 1:2 was addition polymerized in the presence of a catalyst to obtain a mixture nine.
Preferably, the thickener is polyvinyl ether, the catalyst I is trifluoroacetic acid, the dispersant is NPE-7, and the stabilizer is OPE-4.
Preferably, the molecular weight of the polyether polymer mixture is 2000-.
Preferably, the viscosity of the methyl silicone oil is 260MPa.s, and the catalyst is one or more of sodium hydroxide, potassium hydroxide, sodium methoxide, sodium tert-butoxide and potassium tert-butoxide.
The invention also provides a preparation method of the high-efficiency energy-saving polyether defoaming agent, which comprises the following steps:
s1: adding methyl silicone oil, n-butanol and a catalyst I into a mixing container, and mixing and reacting with each other at 100 ℃ to obtain a mixed solution;
s2: and (4) putting the mixed solution prepared in the step (S1), the polyether polymer mixture, the fatty high-carbon alcohol, the thickening agent, the catalyst II, the dispersing agent and the stabilizing agent into a mixing container in sequence, and stirring for 2-5 hours to obtain a semitransparent emulsion, namely the polyether defoaming agent.
Preferably, the reaction time in the step S1 is 2-3 h, the pressure inside the mixing container in the step S1 is 0.02-0.1MPa, and the rotating speed is 300 r/min.
Preferably, the temperature in the mixing container in the step S2 is 50-100 ℃, the pressure is 0.02-0.1MPa, and the rotating speed is 300 r/min.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, the aliphatic high-carbon alcohol is used as the capped hydrophobic chain, the polyether polymer mixture with the hydrophilic chain at intervals is arranged in the middle, the defoaming strength is enhanced, the defoaming speed is increased, the low toxicity is eliminated, various general polyether polyol mixtures are produced by combining the polyether polymer mixture with Propylene Oxide (PO), Butylene Oxide (BO) and Ethylene Oxide (EO) in various combination modes, so that various polyether polyol mixtures can participate in polymerization reaction at the same time, the main chain reaction speed in the reaction process is high, the efficiency is high, the defoaming efficiency of the whole defoaming agent is high, and the energy-saving effect is good.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
The invention provides a technical scheme that: the method comprises the following raw materials: 10 parts of methyl silicone oil, 13 parts of n-butyl alcohol, 20 parts of polyether polymer mixture, 0.6-2.1 parts of fatty higher alcohol, 0.3-0.5 part of thickening agent, 0.1-0.2 part of catalyst I, 0.1-0.2 part of catalyst II, 0.1-0.2 part of dispersing agent and 0.1-0.3 part of stabilizing agent.
The polyether polymer mixture is prepared by mixing nine mixtures, wherein the nine mixtures are respectively as follows:
preparing a first mixture by polyaddition reaction of Propylene Oxide (PO), Butylene Oxide (BO) and Ethylene Oxide (EO) simultaneously in the presence of a catalyst;
preparing a mixture II by addition polymerization of Ethylene Oxide (EO), Butylene Oxide (BO) and Propylene Oxide (PO) in the feeding sequence in the presence of a catalyst;
preparing a mixture III by performing addition polymerization on Propylene Oxide (PO), Butylene Oxide (BO) and Ethylene Oxide (EO) in the presence of a catalyst according to the feeding sequence of the PO, the BO and the EO;
propylene Oxide (PO), Butylene Oxide (BO) and Ethylene Oxide (EO) were fed simultaneously, and Ethylene Oxide (EO): propylene Oxide (PO) in a ratio of 2:1 in the presence of a catalyst to produce a mixture iv by polyaddition;
propylene Oxide (PO), Butylene Oxide (BO) and Ethylene Oxide (EO) were fed simultaneously, and Ethylene Oxide (EO): carrying out addition polymerization on Propylene Oxide (PO) in a ratio of 1:2 in the presence of a catalyst to obtain a mixture V;
in the order of addition of Ethylene Oxide (EO), Butylene Oxide (BO) and Propylene Oxide (PO), and Ethylene Oxide (EO): carrying out addition polymerization on Propylene Oxide (PO) at a ratio of 2:1 in the presence of a catalyst to obtain a mixture six;
in the order of addition of Ethylene Oxide (EO), Butylene Oxide (BO) and Propylene Oxide (PO), and Ethylene Oxide (EO): carrying out addition polymerization on Propylene Oxide (PO) in a ratio of 1:2 in the presence of a catalyst to obtain a mixture seven;
in the order of addition of Propylene Oxide (PO), Butylene Oxide (BO) and Ethylene Oxide (EO), and Ethylene Oxide (EO): carrying out addition polymerization on Propylene Oxide (PO) in a ratio of 2:1 in the presence of a catalyst to obtain a mixture eight;
in the order of addition of Propylene Oxide (PO), Butylene Oxide (BO) and Ethylene Oxide (EO), and Ethylene Oxide (EO): propylene Oxide (PO) in a ratio of 1:2 was addition polymerized in the presence of a catalyst to obtain a mixture nine.
The thickening agent is polyvinyl ether, the catalyst I is trifluoroacetic acid, the dispersing agent is NPE-7, and the stabilizing agent is OPE-4.
The molecular weight of the polyether polymer mixture was 2000-5000.
The viscosity of the methyl silicone oil is 260MPa.s, and the catalyst is one or more of sodium hydroxide, potassium hydroxide, sodium methoxide, sodium tert-butoxide and potassium tert-butoxide.
The invention also provides a preparation method of the high-efficiency energy-saving polyether defoaming agent, which comprises the following steps:
s1: adding methyl silicone oil, n-butanol and a catalyst I into a mixing container, and mixing and reacting with each other at 100 ℃ to obtain a mixed solution;
s2: and (4) putting the mixed solution prepared in the step (S1), the polyether polymer mixture, the fatty high-carbon alcohol, the thickening agent, the catalyst II, the dispersing agent and the stabilizing agent into a mixing container in sequence, and stirring for 2-5 hours to obtain a semitransparent emulsion, namely the polyether defoaming agent.
The reaction time in the step S1 is 2-3 h, the pressure in the mixing container in the step S1 is 0.02-0.1Mpa, and the rotating speed is 300 r/min.
In step S2, the temperature in the mixing container is 50-100 deg.C, the pressure is 0.02-0.1Mpa, and the rotation speed is 300 r/min.
The results of the tests on the polyether defoamer prepared as described in example one are given in table one.
Example two
The invention provides a technical scheme that: 10 parts of methyl silicone oil, 13 parts of n-butyl alcohol, 30 parts of polyether polymer mixture, 0.6-2.1 parts of fatty higher alcohol, 0.3-0.5 part of thickening agent, 0.1-0.2 part of catalyst I, 0.1-0.2 part of catalyst II, 0.1-0.2 part of dispersing agent and 0.1-0.3 part of stabilizing agent.
The polyether polymer mixture is prepared by mixing nine mixtures, wherein the nine mixtures are respectively as follows:
preparing a first mixture by polyaddition reaction of Propylene Oxide (PO), Butylene Oxide (BO) and Ethylene Oxide (EO) simultaneously in the presence of a catalyst;
preparing a mixture II by addition polymerization of Ethylene Oxide (EO), Butylene Oxide (BO) and Propylene Oxide (PO) in the feeding sequence in the presence of a catalyst;
preparing a mixture III by performing addition polymerization on Propylene Oxide (PO), Butylene Oxide (BO) and Ethylene Oxide (EO) in the presence of a catalyst according to the feeding sequence of the PO, the BO and the EO;
propylene Oxide (PO), Butylene Oxide (BO) and Ethylene Oxide (EO) were fed simultaneously, and Ethylene Oxide (EO): propylene Oxide (PO) in a ratio of 2:1 in the presence of a catalyst to produce a mixture iv by polyaddition;
propylene Oxide (PO), Butylene Oxide (BO) and Ethylene Oxide (EO) were fed simultaneously, and Ethylene Oxide (EO): carrying out addition polymerization on Propylene Oxide (PO) in a ratio of 1:2 in the presence of a catalyst to obtain a mixture V;
in the order of addition of Ethylene Oxide (EO), Butylene Oxide (BO) and Propylene Oxide (PO), and Ethylene Oxide (EO): carrying out addition polymerization on Propylene Oxide (PO) at a ratio of 2:1 in the presence of a catalyst to obtain a mixture six;
in the order of addition of Ethylene Oxide (EO), Butylene Oxide (BO) and Propylene Oxide (PO), and Ethylene Oxide (EO): carrying out addition polymerization on Propylene Oxide (PO) in a ratio of 1:2 in the presence of a catalyst to obtain a mixture seven;
in the order of addition of Propylene Oxide (PO), Butylene Oxide (BO) and Ethylene Oxide (EO), and Ethylene Oxide (EO): carrying out addition polymerization on Propylene Oxide (PO) in a ratio of 2:1 in the presence of a catalyst to obtain a mixture eight;
in the order of addition of Propylene Oxide (PO), Butylene Oxide (BO) and Ethylene Oxide (EO), and Ethylene Oxide (EO): propylene Oxide (PO) in a ratio of 1:2 was addition polymerized in the presence of a catalyst to obtain a mixture nine.
The thickening agent is polyvinyl ether, the catalyst I is trifluoroacetic acid, the dispersing agent is NPE-7, and the stabilizing agent is OPE-4.
The molecular weight of the polyether polymer mixture was 2000-5000.
The viscosity of the methyl silicone oil is 260MPa.s, and the catalyst is one or more of sodium hydroxide, potassium hydroxide, sodium methoxide, sodium tert-butoxide and potassium tert-butoxide.
The invention also provides a preparation method of the high-efficiency energy-saving polyether defoaming agent, which comprises the following steps:
s1: adding methyl silicone oil, n-butanol and a catalyst I into a mixing container, and mixing and reacting with each other at 100 ℃ to obtain a mixed solution;
s2: and (4) putting the mixed solution prepared in the step (S1), the polyether polymer mixture, the fatty high-carbon alcohol, the thickening agent, the catalyst II, the dispersing agent and the stabilizing agent into a mixing container in sequence, and stirring for 2-5 hours to obtain a semitransparent emulsion, namely the polyether defoaming agent.
The reaction time in the step S1 is 2-3 h, the pressure in the mixing container in the step S1 is 0.02-0.1Mpa, and the rotating speed is 300 r/min.
In step S2, the temperature in the mixing container is 50-100 deg.C, the pressure is 0.02-0.1Mpa, and the rotation speed is 300 r/min.
The results of the tests for the polyether defoamer prepared as described in example two are given in Table one.
EXAMPLE III
The invention provides a technical scheme that: 10 parts of methyl silicone oil, 13 parts of n-butyl alcohol, 40 parts of polyether polymer mixture, 0.6-2.1 parts of fatty higher alcohol, 0.3-0.5 part of thickening agent, 0.1-0.2 part of catalyst I, 0.1-0.2 part of catalyst II, 0.1-0.2 part of dispersing agent and 0.1-0.3 part of stabilizing agent.
The polyether polymer mixture is prepared by mixing nine mixtures, wherein the nine mixtures are respectively as follows:
preparing a first mixture by polyaddition reaction of Propylene Oxide (PO), Butylene Oxide (BO) and Ethylene Oxide (EO) simultaneously in the presence of a catalyst;
preparing a mixture II by addition polymerization of Ethylene Oxide (EO), Butylene Oxide (BO) and Propylene Oxide (PO) in the feeding sequence in the presence of a catalyst;
preparing a mixture III by performing addition polymerization on Propylene Oxide (PO), Butylene Oxide (BO) and Ethylene Oxide (EO) in the presence of a catalyst according to the feeding sequence of the PO, the BO and the EO;
propylene Oxide (PO), Butylene Oxide (BO) and Ethylene Oxide (EO) were fed simultaneously, and Ethylene Oxide (EO): propylene Oxide (PO) in a ratio of 2:1 in the presence of a catalyst to produce a mixture iv by polyaddition;
propylene Oxide (PO), Butylene Oxide (BO) and Ethylene Oxide (EO) were fed simultaneously, and Ethylene Oxide (EO): carrying out addition polymerization on Propylene Oxide (PO) in a ratio of 1:2 in the presence of a catalyst to obtain a mixture V;
in the order of addition of Ethylene Oxide (EO), Butylene Oxide (BO) and Propylene Oxide (PO), and Ethylene Oxide (EO): carrying out addition polymerization on Propylene Oxide (PO) at a ratio of 2:1 in the presence of a catalyst to obtain a mixture six;
in the order of addition of Ethylene Oxide (EO), Butylene Oxide (BO) and Propylene Oxide (PO), and Ethylene Oxide (EO): carrying out addition polymerization on Propylene Oxide (PO) in a ratio of 1:2 in the presence of a catalyst to obtain a mixture seven;
in the order of addition of Propylene Oxide (PO), Butylene Oxide (BO) and Ethylene Oxide (EO), and Ethylene Oxide (EO): carrying out addition polymerization on Propylene Oxide (PO) in a ratio of 2:1 in the presence of a catalyst to obtain a mixture eight;
in the order of addition of Propylene Oxide (PO), Butylene Oxide (BO) and Ethylene Oxide (EO), and Ethylene Oxide (EO): propylene Oxide (PO) in a ratio of 1:2 was addition polymerized in the presence of a catalyst to obtain a mixture nine.
The thickening agent is polyvinyl ether, the catalyst I is trifluoroacetic acid, the dispersing agent is NPE-7, and the stabilizing agent is OPE-4.
The molecular weight of the polyether polymer mixture was 2000-5000.
The viscosity of the methyl silicone oil is 260MPa.s, and the catalyst is one or more of sodium hydroxide, potassium hydroxide, sodium methoxide, sodium tert-butoxide and potassium tert-butoxide.
The invention also provides a preparation method of the high-efficiency energy-saving polyether defoaming agent, which comprises the following steps:
s1: adding methyl silicone oil, n-butanol and a catalyst I into a mixing container, and mixing and reacting with each other at 100 ℃ to obtain a mixed solution;
s2: and (4) putting the mixed solution prepared in the step (S1), the polyether polymer mixture, the fatty high-carbon alcohol, the thickening agent, the catalyst II, the dispersing agent and the stabilizing agent into a mixing container in sequence, and stirring for 2-5 hours to obtain a semitransparent emulsion, namely the polyether defoaming agent.
The reaction time in the step S1 is 2-3 h, the pressure in the mixing container in the step S1 is 0.02-0.1Mpa, and the rotating speed is 300 r/min.
In step S2, the temperature in the mixing container is 50-100 deg.C, the pressure is 0.02-0.1Mpa, and the rotation speed is 300 r/min.
The results of the tests on the polyether defoamer obtained as described in example three are given in table one.
Table one:
and (4) experimental conclusion: as can be seen from Table 1, the defoaming agent prepared by the technical scheme of the invention uses fatty high-carbon alcohol as a capped hydrophobic chain, and the polyether polymer mixture with an interval hydrophilic chain is arranged in the middle, so that the defoaming strength is enhanced, the defoaming speed is improved, the low toxicity is eliminated, nutrients are provided for hyphae in the fermentation process, the viscosity of the defoaming agent prepared by three examples is more than 260mpa.s, the defoaming agent is small in molecular weight, small in surface tension, high in surface activity and strong in defoaming force, the defoaming agent has the functions of foam inhibition and foam breaking for all bubble systems, the defoaming speed and the production efficiency are improved, and the polyether polymer mixture combines various combination modes of Propylene Oxide (PO), Butylene Oxide (BO) and Ethylene Oxide (EO), so that various universal polyether polyol mixtures are produced, and a plurality of polyether polyol mixtures can participate in polymerization reaction simultaneously, the main chain reaction speed is high in the reaction process, the reaction is complete, the branched chain reaction quantity is small, the side reaction is less, the molecular weight of the final reaction product is higher than that of the existing product, namely, the small molecular weight product influencing the defoaming effect is less, and therefore, the defoaming efficiency of the whole defoaming agent is high, and the energy-saving effect is good.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. An efficient energy-saving polyether defoaming agent is characterized in that: the method comprises the following raw materials: 10 parts of methyl silicone oil, 13 parts of n-butyl alcohol, 20-40 parts of polyether polymer mixture, 0.6-2.1 parts of fatty higher alcohol, 0.3-0.5 part of thickening agent, 0.1-0.2 part of catalyst I, 0.1-0.2 part of catalyst II, 0.1-0.2 part of dispersing agent and 0.1-0.3 part of stabilizing agent.
2. The high-efficiency energy-saving polyether defoaming agent as claimed in claim 1, characterized in that: the polyether polymer mixture is prepared by mixing nine mixtures, wherein the nine mixtures are respectively as follows:
preparing a first mixture by polyaddition reaction of Propylene Oxide (PO), Butylene Oxide (BO) and Ethylene Oxide (EO) simultaneously in the presence of a catalyst;
preparing a mixture II by addition polymerization of Ethylene Oxide (EO), Butylene Oxide (BO) and Propylene Oxide (PO) in the feeding sequence in the presence of a catalyst;
preparing a mixture III by performing addition polymerization on Propylene Oxide (PO), Butylene Oxide (BO) and Ethylene Oxide (EO) in the presence of a catalyst according to the feeding sequence of the PO, the BO and the EO;
propylene Oxide (PO), Butylene Oxide (BO) and Ethylene Oxide (EO) were fed simultaneously, and Ethylene Oxide (EO): propylene Oxide (PO) in a ratio of 2:1 in the presence of a catalyst to produce a mixture iv by polyaddition;
propylene Oxide (PO), Butylene Oxide (BO) and Ethylene Oxide (EO) were fed simultaneously, and Ethylene Oxide (EO): carrying out addition polymerization on Propylene Oxide (PO) in a ratio of 1:2 in the presence of a catalyst to obtain a mixture V;
in the order of addition of Ethylene Oxide (EO), Butylene Oxide (BO) and Propylene Oxide (PO), and Ethylene Oxide (EO): carrying out addition polymerization on Propylene Oxide (PO) at a ratio of 2:1 in the presence of a catalyst to obtain a mixture six;
in the order of addition of Ethylene Oxide (EO), Butylene Oxide (BO) and Propylene Oxide (PO), and Ethylene Oxide (EO): carrying out addition polymerization on Propylene Oxide (PO) in a ratio of 1:2 in the presence of a catalyst to obtain a mixture seven;
in the order of addition of Propylene Oxide (PO), Butylene Oxide (BO) and Ethylene Oxide (EO), and Ethylene Oxide (EO): carrying out addition polymerization on Propylene Oxide (PO) in a ratio of 2:1 in the presence of a catalyst to obtain a mixture eight;
in the order of addition of Propylene Oxide (PO), Butylene Oxide (BO) and Ethylene Oxide (EO), and Ethylene Oxide (EO): propylene Oxide (PO) in a ratio of 1:2 was addition polymerized in the presence of a catalyst to obtain a mixture nine.
3. The high-efficiency energy-saving polyether defoaming agent as claimed in claim 1, characterized in that: the thickening agent is polyvinyl ether, the catalyst I is trifluoroacetic acid, the dispersing agent is NPE-7, and the stabilizing agent is OPE-4.
4. The high-efficiency energy-saving polyether defoaming agent as claimed in claim 1, characterized in that: the molecular weight of the polyether polymer mixture is 2000-5000.
5. The high-efficiency energy-saving polyether defoaming agent as claimed in claim 1, characterized in that: the viscosity of the methyl silicone oil is 260MPa.s, and the catalyst is one or more of sodium hydroxide, potassium hydroxide, sodium methoxide, sodium tert-butoxide and potassium tert-butoxide.
6. A preparation method of a high-efficiency energy-saving polyether defoaming agent is characterized by comprising the following steps: the method comprises the following steps:
s1: adding methyl silicone oil, n-butanol and a catalyst I into a mixing container, and mixing and reacting with each other at 100 ℃ to obtain a mixed solution;
s2: and (4) putting the mixed solution prepared in the step (S1), the polyether polymer mixture, the fatty high-carbon alcohol, the thickening agent, the catalyst II, the dispersing agent and the stabilizing agent into a mixing container in sequence, and stirring for 2-5 hours to obtain a semitransparent emulsion, namely the polyether defoaming agent.
7. The preparation method of the high-efficiency energy-saving polyether defoamer as claimed in claim 6, wherein the preparation method comprises the following steps: the reaction time in the step S1 is 2-3 h, the pressure in the mixing container in the step S1 is 0.02-0.1Mpa, and the rotating speed is 300 r/min.
8. The preparation method of the high-efficiency energy-saving polyether defoamer as claimed in claim 6, wherein the preparation method comprises the following steps: in the step S2, the temperature in the mixing container is 50-100 ℃, the pressure is 0.02-0.1Mpa and the rotating speed is 300 r/min.
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| WO2011020447A1 (en) * | 2009-08-19 | 2011-02-24 | 南京四新科技应用研究所有限公司 | New defoamer for papermaking wet end |
| CN105833572A (en) * | 2016-05-31 | 2016-08-10 | 淄博惠生工贸有限公司 | Polyether antifoaming agent and preparation method thereof |
| CN107674194A (en) * | 2017-08-21 | 2018-02-09 | 沈阳浩博实业有限公司 | A kind of polyether antifoam agent and preparation method thereof |
| CN110639241A (en) * | 2019-10-15 | 2020-01-03 | 武汉三友石化有限公司 | Petroleum defoaming agent and preparation method thereof |
-
2021
- 2021-04-28 CN CN202110464417.3A patent/CN113527654A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011020447A1 (en) * | 2009-08-19 | 2011-02-24 | 南京四新科技应用研究所有限公司 | New defoamer for papermaking wet end |
| CN105833572A (en) * | 2016-05-31 | 2016-08-10 | 淄博惠生工贸有限公司 | Polyether antifoaming agent and preparation method thereof |
| CN107674194A (en) * | 2017-08-21 | 2018-02-09 | 沈阳浩博实业有限公司 | A kind of polyether antifoam agent and preparation method thereof |
| CN110639241A (en) * | 2019-10-15 | 2020-01-03 | 武汉三友石化有限公司 | Petroleum defoaming agent and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 吴仁德等: "Si-O-C型聚醚改性有机硅消泡剂乳液的制备及性能研究" * |
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