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Novel defoaming agent and preparation method thereof

A defoamer, a new type of technology, applied in the direction of separation methods, chemical instruments and methods, foam dispersion/prevention, etc., can solve the problems of poor stability of defoamers, difficulty in achieving the use effect, and affecting the use of defoamers, etc., to achieve good results Frost resistance, excellent compatibility, good use effect

Pending Publication Date: 2021-12-21
和平县长丰环保新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, most of the defoamers use silicone and mineral oil as the dispersion system. The compatibility and dispersibility of the system are strong. The defoamer has poor stability, poor foam suppression performance and long-lasting defoaming. And many other problems, while kitchen waste oil generally refers to all kinds of low-quality oils that exist in daily life, such as recycled cooking oil, repeatedly used frying oil, etc., when used as cooking oil, it will seriously affect people's health
[0003] In order to prevent kitchen waste oil from returning to the dining table, some researchers have studied kitchen waste oil and prepared it into an industrial defoamer. However, kitchen waste oil contains a large amount of animal fat, and it is easy to When the temperature is lower than 10°C, it is easy to form a paste or even a block, which seriously affects the use of defoamers, and it is difficult to achieve a good use effect.

Method used

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  • Novel defoaming agent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] The composition of each material is as follows: 100 parts of kitchen waste oil, 2 parts of ethanol, 4 parts of modified silicone oil, 3 parts of hydrophobic silicon dioxide, 4 parts of paraffin wax, 3 parts of PE wax, 8 parts of metal soap, 12 parts of emulsifier, dispersant 6 doses.

[0028] The preparation method of novel defoamer, comprises the following steps:

[0029] S1: Purchase and filter decolorized kitchen waste oil, then introduce an appropriate amount of kitchen waste oil and ethanol into the reaction kettle, and pass nitrogen into the reaction kettle for protection, and then stir at a stirring speed of 180 Turn per minute, stir for 40 minutes, gradually increase the pressure to 2 atmospheric pressure, and raise the temperature to 250 ° C, under the action of HY and MCM-41 molecular sieve as a catalyst, carry out co-cleavage reaction to obtain a mixture;

[0030] S2: Keep the mixture obtained in S1 in the reactor for 2 hours. After it cools down to 50°C, th...

Embodiment 2

[0035]The composition of each material is as follows: 100 parts of kitchen waste oil, 3 parts of ethanol, 5 parts of modified silicone oil, 4 parts of hydrophobic silicon dioxide, 5 parts of paraffin wax, 5 parts of PE wax, 10 parts of metal soap, 15 parts of emulsifier, dispersant 8 doses.

[0036] The preparation method of novel defoamer, comprises the following steps:

[0037] S1: Purchase and filter decolorized kitchen waste oil, then introduce an appropriate amount of kitchen waste oil and ethanol into the reaction kettle, and pass nitrogen into the reaction kettle for protection, and then stir at a stirring speed of 200 Rotate per minute, after stirring for 50 minutes, gradually increase the pressure to 2.5 atmospheric pressure, and raise the temperature to 260 ° C, under the action of HY and MCM-41 molecular sieve as a catalyst, carry out a co-cracking reaction to obtain a mixture;

[0038] S2: Keep the mixture obtained in S1 in the reactor for 2 hours. After it cools ...

Embodiment 3

[0043] The composition of each material is as follows: 100 parts of kitchen waste oil, 3 parts of ethanol, 4 parts of modified silicone oil, 5 parts of hydrophobic silicon dioxide, 4 parts of paraffin wax, 5 parts of PE wax, 9 parts of metal soap, 14 parts of emulsifier, dispersant 10 doses.

[0044] The preparation method of novel defoamer, comprises the following steps:

[0045] S1: Purchase and filter decolorized kitchen waste oil, then introduce an appropriate amount of kitchen waste oil and ethanol into the reaction kettle, and pass nitrogen into the reaction kettle for protection, and then stir at a stirring speed of 220 Rotate per minute, after stirring for 50 minutes, gradually increase the pressure to 3 atmospheric pressure, and raise the temperature to 270 ° C, under the action of HY and MCM-41 molecular sieve as a catalyst, carry out co-cleavage reaction to obtain a mixture;

[0046] S2: Keep the mixture obtained in S1 in the reactor for 2.5 hours. After it cools d...

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Abstract

The invention provides a novel defoaming agent and a preparation method thereof, which relate to the technical field of defoaming agents. The novel defoaming agent is prepared from kitchen waste oil, ethanol, modified silicone oil, hydrophobic silica, paraffin, PE wax, metallic soap, an emulsifier and a dispersant. The kitchen waste oil after filtration and decoloration is mixed with ethanol, the mixture obtained by catalytic cracking of the molecular sieve, the defoaming substance, the emulsifier, the hydrophobic silicon dioxide and the like are prepared, the mixture formed by cracking of the kitchen waste oil under the catalytic action is a carrier, and the carrier has a certain defoaming effect and good freezing resistance; the dispersant is added, so that the defoaming agent can be rapidly dispersed in the using process, the using effect of rapid defoaming is achieved, on the basis, part of defoaming substances are compounded, the stable defoaming agent is formed, the good defoaming effect and the excellent compatibility are achieved, but the cost is low, the anti-freezing solubility is good, and the better using effect is achieved.

Description

technical field [0001] The invention relates to the technical field of defoamers, in particular to a novel defoamer and a preparation method thereof. Background technique [0002] At present, most of the defoamers use silicone and mineral oil as the dispersion system. The compatibility and dispersibility of the system are strong. The defoamer has poor stability, poor foam suppression performance and long-lasting defoaming. And many other problems, and kitchen waste waste oil generally refers to all kinds of low-quality oils that exist in daily life, such as recycled cooking oil, repeatedly used frying oil, etc., which will seriously affect people's health when used as cooking oil. [0003] In order to prevent kitchen waste oil from returning to the dining table, some researchers have studied kitchen waste oil and prepared it into an industrial defoamer. However, kitchen waste oil contains a large amount of animal fat, and it is easy to When the temperature is lower than 10°...

Claims

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Application Information

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IPC IPC(8): B01D19/04
CPCB01D19/0404
Inventor 黄育朋周光锐颜良运
Owner 和平县长丰环保新材料有限公司
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