Carboxylic acid diquarternary ammonium salt type hydroxypropyl phosphate sodium asphalt emulsifier and preparation method thereof
A technology of sodium hydroxypropyl phosphate and asphalt emulsifier, which is applied in chemical instruments and methods, phosphorus organic compounds, organic chemistry, etc., and can solve the problems of high requirements for production and experimental equipment, high cost of emulsifier raw materials, high temperature reaction, etc. Achieve excellent performance indicators, good aggregate adhesion and storage stability, and improve stability
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
preparation example Construction
[0053] For above asphalt emulsifier, the present invention also provides its preparation method, comprises the following steps:
[0054] (1) N-hydrogenated tallow-1,3-propylenediamine, alcohol solvent and acrylic acid are mixed and reacted to obtain reaction intermediate I, and the structural formula of said reaction intermediate I is
[0055]
[0056] (2) Dissolve sodium dihydrogen phosphate in water, heat to a certain temperature, then gradually add epichlorohydrin, and mix and react to obtain reaction intermediate II, which is 3-chloro-2-hydroxypropyl phosphate sodium
[0057]
[0058] (3) Add the reaction intermediate II to the reaction intermediate I, and mix and react to obtain the carboxylic acid diquaternary ammonium salt type sodium hydroxypropyl phosphate asphalt emulsifier;
[0059] Or, include the following steps:
[0060] (1) N-hydrogenated tallow-1,3-propylenediamine, alcohol solvent and acrylic acid are mixed and reacted to obtain reaction intermediate I...
Embodiment 1
[0089] (1) Preparation of carboxylic acid diquaternary ammonium salt type sodium hydroxypropyl phosphate asphalt emulsifier:
[0090] 1) Add 326.0g of N-hydrogenated tallow-1,3-propylenediamine and 330g of isopropanol into the reactor, heat and stir to dissolve. Then gradually add 219.8g of acrylic acid, and stir at 70°C for 3h.
[0091] 2) Add 491.4g sodium dihydrogen phosphate (NaH 2 PO 4 2H 2 O) and 966g of water, stir to dissolve, and heat to 85°C. Then 194.1 g of epichlorohydrin was added dropwise, and stirred at 85° C. for 7.5 h to obtain an aqueous solution of 3-chloro-2-hydroxypropyl phosphate sodium.
[0092] The above synthetic intermediate product was separated and purified by recrystallization and then detected by FTIR. The results are as follows: 3445cm -1 It is the stretching vibration absorption peak of O-H, 1635cm -1 C-O asymmetric stretching vibration absorption peak, 1297cm -1 It is the stretching vibration absorption peak of P=O, 1093cm -1 It is the ...
Embodiment 2
[0104] (1) Preparation of carboxylic acid diquaternary ammonium salt type sodium hydroxypropyl phosphate asphalt emulsifier:
[0105] 1) Add 326.0g of N-hydrogenated tallow-1,3-propylenediamine and 330g of isopropanol into the reactor, heat and stir to dissolve. Then gradually add 219.8g of acrylic acid, and stir at 70°C for 3h.
[0106] 2) Add 1037.7g trisodium phosphate (Na 3 PO 4 12H 2 O) and 1344g of water, stirred and dissolved, heated to 42°C. Then 194.1 g of epichlorohydrin was added dropwise, and stirred at 42° C. for 5 h to obtain an aqueous solution of sodium glycidyl phosphate.
[0107] The above-mentioned intermediate product synthesized was separated and purified by recrystallization and then detected by FTIR. The results are as follows: 3015cm -1 It is the absorption peak of epoxy group C-H stretching vibration, 1673cm -1 C-O asymmetric stretching vibration absorption peak, 1443cm -1 is the asymmetric bending vibration of methylene, 1360cm -1 It is the st...
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com