Triple anionic-nonionic surfactant, and preparation method and application thereof

A non-ionic surface, active agent technology, used in the preparation of sulfonates, chemical instruments and methods, preparation of organic compounds, etc., can solve the problems of reduced product yield, connection of one or two or three, etc. Alkali resistance, simplified preparation process and equipment, and the effect of product purity

Active Publication Date: 2019-09-13
SHANDONG XINGANG CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But this method exists following shortcoming or deficiency in the third step reaction of introducing anion group: 1. due to the hydrolysis of sodium chloroacetate, sodium chloroethylsulfonate, 3-chloro-2-hydroxypropanesulfonate etc. , the product yield is reduced; ② a certain amount of inorganic salt is produced; ③ the distribution of anionic groups at the end of polyoxyethylene ether has a certain randomness, and there may be one or two or three anionic groups connected in a triplet molecule the situation exists

Method used

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  • Triple anionic-nonionic surfactant, and preparation method and application thereof
  • Triple anionic-nonionic surfactant, and preparation method and application thereof
  • Triple anionic-nonionic surfactant, and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Example 1 Preparation of nonylphenol polyoxyethylene ether-3,5-dimethylene-didodecylphenol polyoxyethylene ether sodium sulfonate

[0028] Add 1mol of nonylphenol polyoxyethylene ether (10EO) into the reaction vessel, add 0.2mol of solid sodium hydroxide, heat up to 55°C and stir evenly, add 2.2mol of formaldehyde solution, keep the temperature at 60°C, and react for 6h.

[0029] Add 2 mol of dodecylphenol polyoxyethylene ether (10EO) sulfonic acid into the reactor, gradually raise the temperature to 90°C and stir for 10 hours to obtain the product. Use NaOH solution to adjust to neutrality, that is, sodium nonylphenol polyoxyethylene ether-3,5-dimethylene-didodecylphenol polyoxyethylene ether sulfonate.

[0030] .

Embodiment 2

[0031] Example 2 Preparation of potassium nonylphenol polyoxyethylene ether-3,5-dimethylene-didodecylphenylhydroxypropyl sulfonate

[0032] Add 1mol of nonylphenol polyoxyethylene ether (15EO) into the reaction vessel, add 0.5mol of solid sodium hydroxide, heat up to 55°C and stir evenly, add 3.0mol of formaldehyde solution, keep the temperature at 60°C, and react for 6h.

[0033] Add 2 mol of dodecylphenylhydroxypropyl sulfonic acid into the reactor, gradually raise the temperature to 100°C and stir for 8 hours to obtain the product. Use KOH solution to adjust to neutrality, that is, potassium nonylphenol polyoxyethylene ether-3,5-dimethylene-didodecylphenylhydroxypropyl sulfonate.

[0034] .

Embodiment 3

[0035] Example 3 Preparation of nonylphenol polyoxyethylene ether-3,5-dimethylene-didodecylphenol polyoxyethylene ether hydroxypropanesulfonate ammonium

[0036] Add 1mol of nonylphenol polyoxyethylene ether (30EO) into the reaction vessel, add 1.2mol of solid sodium hydroxide, heat up to 55°C and stir evenly, add 3.0mol of formaldehyde solution, keep the temperature at 60°C, and react for 24h.

[0037] Add 2 mol of dodecylphenol polyoxyethylene ether (5EO) hydroxypropanesulfonic acid into the reactor, gradually raise the temperature to 110°C and stir for 12 hours to obtain the product. use NH 4 The OH solution is adjusted to be neutral, that is, nonylphenol polyoxyethylene ether-3,5-dimethylene-dodedecylphenol polyoxyethylene ether hydroxypropanesulfonate ammonium.

[0038] .

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PUM

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Abstract

The invention provides a triple anionic-nonionic surfactant, and a preparation method and application thereof, belonging to the technical field of surfactants. The preparation method of the inventioncan overcome the technical problems of generation of inorganic salts, randomness of products, low yield and the like in conventional preparation methods. According to a technical scheme in the invention, the preparation method comprises the following two steps: preparation of a hydroxymethyl alkyl phenol polyoxyethylene ether intermediate; and preparation of the triple anionic-nonionic surfactant.The triple anionic-nonionic surfactant is applicable to exploitation of high-temperature high-salt petroleum reservoirs.

Description

technical field [0001] The invention relates to the technical field of surfactants, in particular to a triple anion-nonionic surfactant and its preparation method and application. Background technique [0002] Most of the oil displacement agents used in oilfield exploitation are compounded by anionic and nonionic surfactants. The two have a synergistic effect, which can effectively reduce the oil-water interfacial tension and improve oil recovery. [0003] Patent application CN105312008A discloses a preparation method of a triple anion-nonionic surfactant, including ① using formaldehyde and alkylphenol polyoxyethylene ether to prepare an alkylphenol polyoxyethylene ether hydroxymethyl intermediate; ② passing the intermediate and Condensation of alkylphenol polyoxyethylene ether to prepare triple alkylphenol polyoxyethylene ether nonionic surfactant; ③ Anionic groups are connected to the end of polyoxyethylene ether of the triple structure nonionic surfactant. In the method,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C41/30C07C43/178C07C303/32C07C309/10C09K8/584E21B43/22B01F17/42B01F17/52C09K23/42C09K23/52
CPCC07C41/30C07C303/32C09K8/584E21B43/16C09K23/00
Inventor 丁锡刚吴庆凯姜力华
Owner SHANDONG XINGANG CHEM
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