CN110180224A - A kind of fermentation preparation method of oil modification silicone antifoam agent - Google Patents
A kind of fermentation preparation method of oil modification silicone antifoam agent Download PDFInfo
- Publication number
- CN110180224A CN110180224A CN201910564398.4A CN201910564398A CN110180224A CN 110180224 A CN110180224 A CN 110180224A CN 201910564398 A CN201910564398 A CN 201910564398A CN 110180224 A CN110180224 A CN 110180224A
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- China
- Prior art keywords
- agent
- silicone antifoam
- degrees celsius
- siloxanes
- preparation
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- 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
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Dispersion Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Apparatus Associated With Microorganisms And Enzymes (AREA)
- Preparation Of Compounds By Using Micro-Organisms (AREA)
Abstract
The invention discloses a kind of fermentation preparation method of oil modification silicone antifoam agent, S1: by siloxanes pump squeeze into measuring tank, toward polymeric kettle inside be previously added initiator, catalyst, 100 degrees Celsius or more progress vacuum dehydration 30 minutes；S2: and then with air in nitrogen metathesis polymerizable kettle, and pumped with vacuum, then pour nitrogen protection, it opens siloxanes and measures tank valve, open up charging, control reaction temperature is between 100 degrees Celsius -150 degrees Celsius, and pressure is in 0.35MPa or less.It is convenient that raw material of the present invention obtain, simple process, it can be improved the acid resistance of defoaming agent, it is integrally improved the defoaming effectiveness of defoaming agent, improve the practical value of defoaming agent, since the surface tension of the defoaming agent of siloxanes production is lower, the solubility in water and general oil is low and active height, improves the foam inhibition time.
Description
Technical field
The present invention relates to the preparations that defoaming agent technical field more particularly to a kind of fermentation use oil modification silicone antifoam agent
Method.
Background technique
In existing fermentation process, a large amount of blistering can be generated, then just will affect ferment effect, traditional defoaming agent
Foam inhibition period, defoaming effect are not rapid enough, meanwhile, acid resistance effect is general, for this purpose, we have proposed a kind of fermentation greases
The preparation method of modified siloxane defoaming agent.
Summary of the invention
The purpose of the present invention is to solve disadvantages existing in the prior art, and a kind of fermentation oil modification proposed
The preparation method of silicone antifoam agent.
To achieve the goals above, present invention employs following technical solutions:
A kind of fermentation preparation method of oil modification silicone antifoam agent, comprising the following steps:
S1: by siloxanes pump squeeze into measuring tank, toward polymeric kettle inside be previously added initiator, catalyst, taken the photograph 100
Family name degree or more carries out vacuum dehydration 30 minutes；
S2: and then with air in nitrogen metathesis polymerizable kettle, and pumped with vacuum, then pour nitrogen protection, open siloxanes
Tank valve is measured, charging is opened up, controls reaction temperature between 100 degrees Celsius -150 degrees Celsius, pressure is in 0.35MPa or less；
S3: etc. siloxane reactions it is complete after, keep the temperature 30 minutes, then neutralizer, decolorising agent is added to kettle is neutralized in punishment in advance,
Neutralization reaction 2h or more, temperature are controlled at 100-150 degrees Celsius, and pressure is normal pressure；
S4: after neutralizing completely, opening air compressor machine will filter in material indentation filter, and filtrate is finished product defoaming agent.
Preferably, the initiator is the intermixture of glycerine, pentaerythrite, mixed proportion 1:1.25.
Preferably, the catalyst is potassium hydroxide.
Preferably, the neutralizer is phosphoric acid.
Preferably, the decolorising agent is atlapulgite.
Preferably, the siloxanes, initiator, catalyst, decolorising agent, neutralizer ratio be 100:12:10:5:7.
The invention has the benefit that
Raw material obtain convenient, simple process, can be improved the acid resistance of defoaming agent, are integrally improved the defoaming of defoaming agent
Efficiency improves the practical value of defoaming agent, since the surface tension of the defoaming agent of siloxanes production is lower, in water and general oil
In solubility is low and active height, improve the foam inhibition time.
Specific embodiment
The technical scheme in the embodiments of the invention will be clearly and completely described below, it is clear that described implementation
Example is only a part of the embodiment of the present invention, instead of all the embodiments.
Embodiment
A kind of fermentation preparation method of oil modification silicone antifoam agent, includes the following steps,
S1: by siloxanes pump squeeze into measuring tank, toward polymeric kettle inside be previously added initiator, catalyst, taken the photograph 100
Family name degree or more carries out vacuum dehydration 30 minutes；
S2: and then with air in nitrogen metathesis polymerizable kettle, and pumped with vacuum, then pour nitrogen protection, open siloxanes
Tank valve is measured, charging is opened up, controls reaction temperature between 100 degrees Celsius -150 degrees Celsius, pressure is in 0.35MPa or less；
S3: etc. siloxane reactions it is complete after, keep the temperature 30 minutes, then neutralizer, decolorising agent is added to kettle is neutralized in punishment in advance,
Neutralization reaction 2h or more, temperature are controlled at 100-150 degrees Celsius, and pressure is normal pressure；
S4: after neutralizing completely, opening air compressor machine will filter in material indentation filter, and filtrate is finished product defoaming agent.
Initiator is the intermixture of glycerine, pentaerythrite, and mixed proportion 1:1.25, catalyst is potassium hydroxide, in
Be phosphoric acid with agent, decolorising agent is atlapulgite, siloxanes, initiator, catalyst, decolorising agent, neutralizer ratio be 100:12:
10:5:7。
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (6)
1. the preparation method that oil modification silicone antifoam agent is used in a kind of fermentation, which comprises the following steps:
S1: by siloxanes pump squeeze into measuring tank, toward polymeric kettle inside be previously added initiator, catalyst, at 100 degrees Celsius
It is above to carry out vacuum dehydration 30 minutes；
S2: and then with air in nitrogen metathesis polymerizable kettle, and pumped with vacuum, then pour nitrogen protection, open siloxanes metering
Tank valve opens up charging, controls reaction temperature between 100 degrees Celsius -150 degrees Celsius, pressure is in 0.35MPa or less；
S3: etc. siloxane reactions it is complete after, keep the temperature 30 minutes, then neutralizer, decolorising agent is added to kettle is neutralized in punishment in advance, neutralizes
2h or more is reacted, temperature is controlled at 100-150 degrees Celsius, and pressure is normal pressure；
S4: after neutralizing completely, opening air compressor machine will filter in material indentation filter, and filtrate is finished product defoaming agent.
2. the preparation method that oil modification silicone antifoam agent is used in a kind of fermentation according to claim 1, which is characterized in that
The initiator is the intermixture of glycerine, pentaerythrite, mixed proportion 1:1.25.
3. the preparation method that oil modification silicone antifoam agent is used in a kind of fermentation according to claim 1, which is characterized in that
The catalyst is potassium hydroxide.
4. the preparation method that oil modification silicone antifoam agent is used in a kind of fermentation according to claim 1, which is characterized in that
The neutralizer is phosphoric acid.
5. the preparation method that oil modification silicone antifoam agent is used in a kind of fermentation according to claim 1, which is characterized in that
The decolorising agent is atlapulgite.
6. the preparation method that oil modification silicone antifoam agent is used in a kind of fermentation according to claim 1, which is characterized in that
The siloxanes, initiator, catalyst, decolorising agent, neutralizer ratio be 100:12:10:5:7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910564398.4A CN110180224A (en) | 2019-06-27 | 2019-06-27 | A kind of fermentation preparation method of oil modification silicone antifoam agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910564398.4A CN110180224A (en) | 2019-06-27 | 2019-06-27 | A kind of fermentation preparation method of oil modification silicone antifoam agent |
Publications (1)
| Publication Number | Publication Date |
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| CN110180224A true CN110180224A (en) | 2019-08-30 |
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| CN201910564398.4A Pending CN110180224A (en) | 2019-06-27 | 2019-06-27 | A kind of fermentation preparation method of oil modification silicone antifoam agent |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2003251711A1 (en) * | 2002-08-16 | 2004-03-11 | Dow Corning Corporation | Silicone foam control compositions |
| CN101780384A (en) * | 2009-12-07 | 2010-07-21 | 江苏赛欧信越消泡剂有限公司 | Defoaming composition of polyether modified siloxane |
| CN101791495A (en) * | 2010-03-19 | 2010-08-04 | 新时代(济南)民爆科技产业有限公司 | Defoamer suitable for amino acid fermentation production |
| CN101884852A (en) * | 2010-06-30 | 2010-11-17 | 南京四新科技应用研究所有限公司 | Method for improving properties of polyether defoaming agent |
| CN102527096A (en) * | 2011-05-12 | 2012-07-04 | 湖北新四海化工股份有限公司 | Organic silicon defoaming agent and preparation method thereof |
| EP2649172A1 (en) * | 2010-12-10 | 2013-10-16 | Dow Corning Corporation | Granulated foam control composition |
-
2019
- 2019-06-27 CN CN201910564398.4A patent/CN110180224A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2003251711A1 (en) * | 2002-08-16 | 2004-03-11 | Dow Corning Corporation | Silicone foam control compositions |
| CN101780384A (en) * | 2009-12-07 | 2010-07-21 | 江苏赛欧信越消泡剂有限公司 | Defoaming composition of polyether modified siloxane |
| CN101791495A (en) * | 2010-03-19 | 2010-08-04 | 新时代(济南)民爆科技产业有限公司 | Defoamer suitable for amino acid fermentation production |
| CN101884852A (en) * | 2010-06-30 | 2010-11-17 | 南京四新科技应用研究所有限公司 | Method for improving properties of polyether defoaming agent |
| EP2649172A1 (en) * | 2010-12-10 | 2013-10-16 | Dow Corning Corporation | Granulated foam control composition |
| CN102527096A (en) * | 2011-05-12 | 2012-07-04 | 湖北新四海化工股份有限公司 | Organic silicon defoaming agent and preparation method thereof |
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Application publication date: 20190830 |
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