Rosin cation asphalt emulgent

The technology of asphalt emulsifier and rosin yang is applied in the field of preparation of fine chemical cationic asphalt emulsifier, which can solve the problems of little room for product improvement and limited raw materials of emulsifier, and achieve the effect of excellent emulsifying performance and reducing production cost.

Inactive Publication Date: 2006-11-15
DALIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this method is that the raw materials of the emulsif

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Gum rosin (average molecular weight 302g / mol) 40g, triethylenetetramine 22g add in the reactor, be warming up to 160 ℃ and react for 5 hours, after cooling to 65 ℃, add 95% ethanol 62g, stir, obtain about 124g solid content 50 % of rosin intermediates.

[0017] 30 g of octadecyl tertiary amine, 9.3 g of epichlorohydrin (99%) and 39 g of 95% ethanol were added to the reactor, and the temperature was raised to 60° C. for 5 hours to obtain about 78 g of quaternary ammonium salt of octadecyl tertiary amine with a solid content of 50%. body.

[0018] Add 38g of trimethylamine into the reactor, maintain the reaction temperature at about 28-35°C, slowly add 22g of hydrochloric acid, and keep for 1 hour. Slowly add 18g of epichlorohydrin (99wt%), at about 42-55°C, add about 22g of 30% liquid caustic soda, and react for 3-4 hours to obtain 104g of trimethylamine quaternary ammonium salt intermediate with a concentration of about 32%.

[0019] Rosin intermediate 33g, trimethyla...

Embodiment 2

[0023] Maleic anhydride-modified 117# rosin (average molecular weight 280g / mol) 30g, triethylenetetramine 20g was added in the reactor, the temperature was raised to 160°C for 5 hours, after cooling to 65°C, 95% ethanol 50g was added, Stir evenly to obtain about 100 g of rosin intermediate with a solid content of 50%.

[0024] 30 g of octadecyl tertiary amine, 9.3 g of epichlorohydrin (99%) and 39 g of 95% ethanol were added to the reactor, and the temperature was raised to 60° C. for 5 hours to obtain about 78 g of quaternary ammonium salt of octadecyl tertiary amine with a solid content of 50%. Body 78g.

[0025] Add 38g of trimethylamine into the reactor, maintain the reaction temperature at about 28-35°C, slowly add 22g of hydrochloric acid, and keep for 1 hour. Slowly add 18g of epichlorohydrin (99wt%), at about 42-55°C, add about 22g of 30% liquid caustic soda, and react for 3-4 hours to obtain 104g of trimethylamine quaternary ammonium salt intermediate with a concentr...

Embodiment 3

[0030] Gum rosin (average molecular weight 302g / mol) 40g, diethylenetriamine 18g is added in the reactor, is heated up to 160 ℃ and reacts for 5 hours, after cooling to 65 ℃, adds 95% ethanol 58g, stirs, obtains about 116g solid content 50 % of rosin intermediates.

[0031] 30 g of octadecyl tertiary amine, 9.3 g of epichlorohydrin (99%) and 39 g of 95% ethanol were added to the reactor, and the temperature was raised to 60° C. for 5 hours to obtain 78 g of quaternary ammonium salt intermediate of octadecyl tertiary amine with a solid content of 50%. .

[0032] Add 38g of trimethylamine into the reactor, maintain the reaction temperature at about 28-35°C, slowly add 22g of hydrochloric acid, and keep for 1 hour. Slowly add 18g of epichlorohydrin (99wt%), at about 42-55°C, add about 22g of 30% liquid caustic soda, and react for 3-4 hours to obtain 104g of trimethylamine quaternary ammonium salt intermediate with a concentration of about 32%.

[0033] Rosin intermediate 30g, t...

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PUM

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Abstract

The invention relates to a rosin cationic bitumen emulsifier. The rosin intermediate is reacted by the rosin and the polyethylene polyamine, then to condensate with the different types of the quaternary ammonium salt to get the emulsifier. The emulsifier can be used to produce the normal cationic emulsifying asphalt or the SBR modified emulsifying asphalt for the road priming oil and the felting oil. The character of the invention is to use the nature resin rosin as the material, so the cost has decreased and it meets the environment need. The emulsifying asphalt can reach the need of the standard of the China ministry of communications and the America ASTMD2397.

Description

technical field [0001] The invention relates to a preparation method of a fine chemical cationic asphalt emulsifier. Background technique [0002] Rosin is a complex mixture, about 90% of which are acidic substances, of which resin acid isomers are the main ones, while containing a small amount of fatty acids. The molecular formula of resin acid is C 19 h 29 COOH, it has many isomers, all have a tricyclic phenanthrene skeleton, and most of them are monobasic acids containing two double bonds. For the rosin in the mixture, the prepared emulsifier has good emulsifying performance, and the mixing performance of the emulsified asphalt and different stone materials is good. In order to improve the performance of rosin, maleic anhydride is often used to prepare modified rosin, which can also be used to prepare cationic asphalt emulsifier. [0003] With the application of cationic emulsified asphalt, the varieties of asphalt emulsifiers are gradually enriched. The condensation ...

Claims

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Application Information

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IPC IPC(8): C09F1/04C09K23/52
Inventor 申凯华李荫国张海峰曹立
Owner DALIAN UNIV OF TECH
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