Method for preparing rosin-based surfactant

A technology based on surfactants and surfactants is applied in the field of preparation of rosin-based surfactants, which can solve problems such as insufficient application fields, incomplete varieties, and no literature reports, and achieve outstanding green effect, low surface tension, Simple preparation process

Inactive Publication Date: 2010-09-15
INST OF CHEM IND OF FOREST PROD CHINESE ACAD OF FORESTRY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The research and development of polyoxyethylene ether phosphate is earlier in foreign countries, but our country is still in the development stage, the varieties are not complete, and the application fields are not wide enough.
Therefore, the research and development of polyoxyethylene ether phosphate has important practical significance, but there is no literature report about rosin-based polyoxyethylene ether phosphate

Method used

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  • Method for preparing rosin-based surfactant
  • Method for preparing rosin-based surfactant

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] A preparation method of rosin-based surfactant, comprising the steps of:

[0016] The first step, add its quality 0.1~1.0% catalyzer, 0~18% polyalcohol and 2~3000% polyethylene glycol or alkylene oxide in molten rosin or derivative thereof, and it is heated at a temperature of Reaction at 230-290°C for 2-5 hours; Among them, the catalysts are MgO, ZnO, tetrakis [β-(3,5-di-tert-butyl-4-hydroxyphenyl)propionic acid] pentaerythritol ester, bis(3,5- One or more of di-tert-butyl-4-hydroxybenzylphosphonic acid monoethyl ester) calcium, 2,6-di-tert-butyl p-cresol, the proportion of the mixture is any proportion; the catalyst accounts for rosin or The percentage of its derivative mass can be 0.1%, 0.2%, 0.3%, 0.5%, 0.7%, 0.9%, and the percentage of polyethylene glycol accounting for rosin or its derivative mass can be 10%, 100%, 500%, 800%, 1500%, 1800%, 2000%, 2500%, the molecular weight of polyethylene glycol can be 200, 600, 1000, 4000, 6000, 8000, 10000, 20000, rosin deriv...

Embodiment 2

[0021] Heat and melt 87g of rosin, when the temperature rises to 230°C, add 0.3g of ZnO, and add 230g of polyethylene glycol 4000 several times in batches, raise the temperature to 265°C, keep it for 4h, depressurize and evacuate, when the temperature drops to 85 At ℃, add 0.6g tert-butylhydroquinone and 6g phosphorus pentoxide in batches, and discharge after 3 hours of heat preservation to obtain a rosin-based surfactant; its critical micelle concentration is 1.2×10 -6 mol / L, the surface tension is 28.4mN / m, the calcium soap dispersibility is 4.8%, and the Krafft point is less than 0°C.

Embodiment 3

[0023] Heat and melt 50g of maleic rosin, when the temperature rises to 230°C, add 0.2g of MgO, and add 413g of polyethylene glycol 10000 in batches, raise the temperature to 270°C, keep it for 4h, depressurize and evacuate, when the temperature drops When the temperature reaches 85°C, add 0.2g p-, p-dicumyl diphenylamine and 4g phosphorus oxychloride in batches, keep warm for 3 hours, and discharge to obtain a rosin-based surfactant; its critical micelle concentration is 1.8× 10 -5mol / L, the surface tension is 26.3mN / m, the calcium soap dispersibility is 3.6%, and the Krafft point is less than 0°C.

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Abstract

The invention discloses a method for preparing a rosin-based surfactant, which comprises the following steps: 1, adding a catalyst in an amount of 0.1 to 1.0 percent based on the mass of the rosin or a rosin derivative and polyethylene glycol or alkylene oxide in an amount of 2 to 3,000 percent based on the mass of the rosin or a rosin derivative into the molten rosin or a rosin derivative to allow the polyethylene glycol or alkylene oxide to react with the rosin or a rosin derivative at the temperature of 230 to 290 DEG C for 2 to 5 hours; 2, perform reduced pressure vacuumization and keeping a vacuum degree of less than or equal to 2kPa for 5 to 60 minutes to remove low-boiling-point substances; and 3, decreasing the temperature to 60 to 120 DEG C, adding antioxygen in an amount of 0.1 to 1 percent based on the mass of the rosin or a rosin derivative and an esterifying agent in an amount of 5 to 12 percent based on the mass of the rosin or a rosin derivative in batch into the product obtained by the step, performing a reaction at the temperature of 65 to 110 DEG C for 2 to 6 hours, and discharging the resulting material to obtain the rosin-based surfactant. The product has low surface tension, low critical micelle concentration, high emulsifying performance and low Krafft point and can be used as an emulsifier, a dispersant and an oil field assistant.

Description

technical field [0001] The invention relates to a preparation method of a surfactant, in particular to a preparation method of a rosin-based surfactant. Background technique [0002] Rosin is an important natural renewable resource in my country. Because of its unique structure and performance, it has attracted widespread attention. Its derivatives are widely used in various departments of daily life and are an indispensable chemical raw material. Its main components are abietic acid type resin acid and pimaric acid type resin acid, both of which are three-membered phenanthrene ring skeleton structure, with good lipophilicity, introduced by chemical reaction of two functional groups of carboxyl group and double bond Hydrophilic groups can produce surfactants with different structures. As early as the 1920s, foreign countries began to use rosin to synthesize surfactants. In the 1960s, rosin acid sulfonate and rosin amine polyoxyethylene ether were synthesized. After the 1970...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G65/48C08G65/327B01F17/52B01F17/42B01F17/14A01N25/30A61K8/86D06M15/53C09K23/14C09K23/42C09K23/52
Inventor 商士斌李建芳宋湛谦高宏饶小平
Owner INST OF CHEM IND OF FOREST PROD CHINESE ACAD OF FORESTRY
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