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Synthesis method of dimer acid emulsifier

A synthesis method and dimer acid technology, applied in chemical instruments and methods, non-explosive/non-thermal agent components, dissolution, etc., can solve problems such as harsh emulsification conditions, poor emulsifiability, and poor stability, and achieve stable product quality. Effects of improved emulsification and improved stability

Pending Publication Date: 2021-09-28
昆明澳融科技有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The emulsifier currently used in industrial colloidal explosives is S-80 or polyisobutylene succinimide polymer emulsifier (the former has poor stability and the latter has insufficient emulsification), but due to the presence of oil in the production of industrial colloidal explosives phase and water phase, the density difference is large, and the acidity of the supersaturated solution of nitrate is low. On the other hand, due to the performance requirements of oxygen balance in industrial explosives, the addition of emulsifiers and oil phase materials is relatively low, resulting in the current existence of industrial colloidal explosives. Defects that need to be improved, such as poor emulsifiability during the process, high safety risks during emulsification, harsh emulsification conditions, and poor product stability

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Embodiment 1: a kind of synthetic method of dimer acid emulsifier, it is to add high-purity dimer acid 500g in the reactor with mechanical stirrer, condenser, vacuum device, thermometer, stir and heat up to 80 ℃, add Diethylene glycol 100g, NaOH solution 0.5g, turn on the stirring and vacuum pump, keep the vacuum degree 50-100mmHg, slowly raise the temperature, when the temperature reaches 130°C, keep the vacuum state and control the heating rate under stirring state 10-20°C / h, Make the formed water evaporate gradually. When the temperature rises to 190°C, keep warm for 1 hour, turn off the vacuum pump, slowly cool down to 150°C, add diluent oil and cool down to 90°C, add tetraethylenepentamine, turn on the stirring and vacuum pump, and slowly Raise the temperature at a rate of 8-10°C / h. When the temperature rises to 130°C and keep the reaction for 1 hour, take a sample and measure the acid value to be less than 1 mg / g. After the reaction, a light yellow transparent emul...

Embodiment 2

[0025] Embodiment 2: a kind of synthetic method of dimer acid emulsifier, it is to add high-purity dimer acid 500g in the reactor with mechanical stirrer, condenser, vacuum device, thermometer, stir and heat up to 80 ℃, add Glycerin 110g, NaOH solution 0.6g, turn on the stirring and vacuum pump, keep the vacuum at 100-700mmHg, and slowly raise the temperature. The water gradually evaporates, when the temperature rises to 180°C, keep warm for 1 hour, turn off the vacuum pump, slowly cool down to 120°C, add diluent oil and cool down to 90°C, add diethanolamine, turn on the stirring and vacuum pump, slowly heat up, the temperature rise speed 8-10°C / h, when the temperature rises to 170°C, keep the reaction for 1h, take a sample and measure the acid value is less than 1mg / g, and the light yellow transparent emulsifier is obtained after the reaction is completed.

Embodiment 3

[0026] Embodiment 3: a kind of synthetic method of dimer acid emulsifier, it is to add high-purity dimer acid 500g in the reactor with mechanical stirrer, condenser, vacuum device, thermometer, stir and heat up to 80 ℃, add Sorbitol 130g, NaOH solution 1g, turn on the stirring and vacuum pump, keep the vacuum degree 50-200mmHg, slowly raise the temperature, when the temperature reaches 130°C, keep the vacuum state and control the heating rate under stirring state 10-20°C / h, so that the formed The water is gradually evaporated. When the temperature rises to 190°C, keep warm for 2 hours, turn off the vacuum pump, slowly cool down to 120°C, add diluent oil and cool down to 90°C, add ethylenediamine, turn on the stirring and vacuum pump, and slowly heat up. The speed is 8-10°C / h, when the temperature rises to 140°C, keep the reaction for 1h, take a sample and measure the acid value is less than 1mg / g, and the light yellow transparent emulsifier is obtained after the reaction is com...

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Abstract

The invention discloses a synthesis method of a dimer acid emulsifier, the synthesis method comprises the following steps: (1) adding dimer acid into a reactor, stirring and heating to 80 DEG C, and starting a vacuum pump; (2) adding polyol and a catalyst solution, continuously heating to 150-190 DEG C, stirring and reacting for 2-5 hours, and controlling the heating speed at 20-30 DEG C / h to obtain an intermediate containing a lipid group; (3) cooling the intermediate containing the lipid group in the step (2) to 120 DEG C, adding a diluent, then adding polyamine or alcohol amine, controlling the temperature to be 120-180 DEG C for reaction, stirring and reacting for 1-2 hours in a vacuum state, controlling the heating speed to be 10-20 DEG C / h, and stopping the reaction after all water generated by the reaction is evaporated; and (4) cooling and discharging to obtain the emulsifier with the content of 70% or above. The emulsifier is used for industrial colloidal explosives, the emulsibility in the product preparation process is greatly improved, the emulsifier can be smoothly emulsified under the condition that the stirring strength in the emulsion preparation process is reduced, the emulsifier has a certain self-emulsifying function, and the stability of colloid is greatly improved after the emulsification is finished.

Description

technical field [0001] The invention relates to a method for preparing an emulsifier, in particular to a method for synthesizing a dimer acid emulsifier. Background technique [0002] Dimer acid is a dibasic acid produced by the addition polymerization of two molecules of C8 unsaturated fatty acids, such as oleic acid and linoleic acid. It contains two polar carboxyl groups and a large non-polar hydrocarbon group. Its chemical The properties are similar to fatty acids. The molecule contains two carboxyl groups, which can undergo various reactions such as lipidation and amination. There are relatively large alkyl groups and 1-3 double bonds in the molecule, which can undergo chemical reactions such as addition and polymerization. . Dimer acid is generally used in the fields of resins, cosmetics, and lubricating oils. The emulsifier currently used in industrial colloidal explosives is S-80 or polyisobutylene succinimide polymer emulsifier (the former has poor stability and t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01F17/22B01F17/16B01F17/38C06B23/00C09K23/22C09K23/16C09K23/38
CPCC06B23/009
Inventor 耿千皓宋瀛莹耿艳林
Owner 昆明澳融科技有限责任公司
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