Isomeric alcohol block polyether with excellent degreasing emulsion performance and preparation method and application of isomeric alcohol block polyether

A block polyether and isomeric alcohol technology, applied in chemical instruments and methods, transportation and packaging, and other chemical processes, can solve problems such as high pour point, high foam, unusable, etc., and achieve excellent oil removal ability, highly operable effect

Active Publication Date: 2019-11-15
联泓(江苏)新材料研究院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Fatty alcohol polyoxyethylene ether is a conventional nonionic surfactant with good emulsification, scouring, oil removal and dispersion properties, but such products usually have the disadvantages of high foam, high pour point and easy gelation. During operation, these disadvantages have negative effects, and even cannot be used in some processes
Isomerized alcohol block polyether is another kind of nonionic surfactant, has the characteristics of low foam, low pour point, and no gel, which can improve these shortcomings of fatty alcohol block polyether, but isomeric in the prior art Alcohol block polyether products have disadvantages such as poor emulsifying power and poor degreasing power

Method used

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  • Isomeric alcohol block polyether with excellent degreasing emulsion performance and preparation method and application of isomeric alcohol block polyether
  • Isomeric alcohol block polyether with excellent degreasing emulsion performance and preparation method and application of isomeric alcohol block polyether
  • Isomeric alcohol block polyether with excellent degreasing emulsion performance and preparation method and application of isomeric alcohol block polyether

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] Example 1: Preparation of Isomerized Undecyl Alcohol Block Polyether

[0055]

[0056] The initiator isomerized undecyl alcohol (C 3 h 7 CH(CH 3 )CH 2 CH(CH 3 )C 3 h 6 OH, the average degree of isomerization is 2) 171g and catalyst (0.34g KOH aqueous solution, wherein the KOH concentration is 50wt%) mixed, 100 ℃ vacuum dehydration until the raw material moisture is lower than 0.1%, and then the dehydrated raw material is sucked into the alkane Oxygenation reactor, vacuumed and filled with N 2 Replacement, heat up to 130°C, slowly feed 290.3g of propylene oxide, control the reaction temperature at 130-140°C, pressure 40-60psi, aging for 60 minutes after adding propylene oxide to obtain the intermediate, and then pass the ring to the intermediate Oxygen 352g, control reaction temperature 140-150°C, pressure 40-60psi, aging for 30 minutes after adding ethylene oxide, cooling to 80°C, gas stripping, discharging, neutralization with acetic acid until pH is about 6....

Embodiment 2

[0057] Example 2: Preparation of Isomerized Undecyl Alcohol Block Polyether

[0058]

[0059] The initiator isomerized undecyl alcohol (C 3 h 7 CH(CH 3 )CH 2 CH(CH 3 )C 3 h 6 OH, the average degree of isomerization is 2) 171g and catalyst (3.4g KOH aqueous solution, wherein the KOH concentration is 50wt%) mixed, 100 ℃ vacuum dehydration until the raw material moisture is lower than 0.1%, and then the dehydrated raw material is sucked into the alkane Oxygenation reactor, vacuumed and filled with N 2 Replacement, heat up to 130°C, slowly feed 232g propylene oxide, control the reaction temperature 130-140°C, pressure 40-60psi, after adding propylene oxide, age for 60 minutes to obtain the intermediate, and then pass epoxy to the intermediate 308g of ethane, controlled reaction temperature 140-150°C, pressure 40-60psi, aging for 30 minutes after adding ethylene oxide, cooling to 80°C, gas stripping, discharging, neutralizing with acetic acid until the pH is 5.0-7.0, and ...

Embodiment 3

[0060] Example 3: Preparation of isomeric tridecanol block polyether

[0061]

[0062] The initiator isomerized tridecyl alcohol (C 3 h 7 CH(CH 3 )CH 2 CH(CH 3 )CH 2 CH(CH 3 )C 2 h 4 OH, the average degree of isomerization is 3) 100g is mixed with catalyst (1.0g KOH aqueous solution, wherein the KOH concentration is 50wt%), vacuum dehydrated at 100°C until the raw material moisture is lower than 0.1%, and then vacuum sucks the dehydrated raw material into alkane Oxygenation reactor, vacuumed and filled with N 2 Replacement, heating up to 130°C, slowly feeding 61.0g propylene oxide, controlling the reaction temperature 130-140°C, pressure 40-60psi, aging for 60 minutes after adding propylene oxide, to obtain the intermediate, and then pass the ring to the intermediate Oxygen 176g, control reaction temperature 140-150°C, pressure 40-60psi, aging for 30 minutes after adding ethylene oxide, cooling to 80°C, air stripping, discharging, acetic acid neutralization to pH 5...

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Abstract

The invention discloses an isomeric alcohol block polyether with excellent degreasing emulsion performance and a preparation method and application of the isomeric alcohol block polyether. The isomeric alcohol block polyether is of a chemical structure of a formula I shown in the specification, in the formula, R is selected from isomeric alkyl of which the average isomerization degree is greater than or equal to 2, n is selected from numbers of 1-8, and m is selected from a number of 2-15. The preparation method comprises the following steps: performing a polymerization reaction on isomeric alcohol R-OH and epoxypropane so as to obtain an intermediate, and performing a polymerization reaction on the obtained intermediate and ethylene oxide so as to obtain the isomeric alcohol block polyether. The obtained isomeric alcohol block polyether has the characteristics of being low in pour point, free of gel, low in foam and excellent in emulsification and degreasing capability, and a degreasing agent and emulsifier raw material with good operability can be provided for the market.

Description

technical field [0001] The invention belongs to the field of surfactants, and in particular relates to an isomeric alcohol block polyether with excellent degreasing and emulsifying properties, a preparation method and application thereof. Background technique [0002] Fatty alcohol polyoxyethylene ether is a conventional nonionic surfactant with good emulsifying, scouring, degreasing and dispersing properties, but such products usually have the disadvantages of high foam, high pour point and easy gelation. During operation, these disadvantages have negative effects, and even cannot be used in some processes. Isomerized alcohol block polyether is another kind of nonionic surfactant, has the characteristics of low foam, low pour point, and no gel, which can improve these shortcomings of fatty alcohol block polyether, but in the prior art isomeric Alcohol block polyether products have disadvantages such as poor emulsifying power and poor degreasing power. Contents of the inv...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G65/28C09K3/32B01F17/42C09K23/42
CPCC08G65/2609C09K3/32C09K23/00
Inventor 应班梁帅李磊李方
Owner 联泓(江苏)新材料研究院有限公司
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