Synthesis And Properties Of Cardanol Betaine Surfactants

As the rapid development of social economy in China,there has been a huge demand for the natural gas and oil.Under this kind of background,utilizing tertiary oil recovery technology to promote the availability of oil is of great significance for the alienation of oil pressure in our country.It also has a strategic importance for the maintenance and stability of oil in our country.Thus surfactant EOR(Enhanced Oil Recovery)as a kind of core technology of tertiary oil recovery has been widely reported by media.This dissertation specifically reports the insufficiency of tertiary oil recovery technology and systematically concludes different vantages and drawbacks of EOR technologies.Based on this,this paper uses cardanol as the raw material in the experiment and obtains the raw material with the help of epichlorohydrin to get the cardanol glycidyl ether.Then it is reacted with diethylamine to get the tertiary amine which further reacts with 3-chloro-2 hydroxy sodium sulfonate to get two-cardanol betaine type amphoteric surfactant active agent.Through a experiment of FT-IR and UV expression test on the products,it is concluded that the obtained product has been testified to be the target product.This paper discusses two-cardanol betaine type amphoteric surfactant active agent in different situations and at the same time,it also makes a research on the stability of the water solution two-cardanol betaine type amphoteric surfactant active agent as well as its polymer.As tested by the experiments,in three kinds of inorganic salt solution with same concentration,the two-cardanol betaine type amphoteric surfactant active agent attracts the quartz sand the most featured by Na2SO4 followed by CaCl2 and NaCl.As the increase of temperature,four kinds of solution with different concentration and the oil surface of median space all show a declining tendency followed by an increasing tendency.With the increase of mineralization degree,there is an increasing tendency of surface tension between two-cardanol betaine type amphoteric surfactant active agent and median space.On the contrary,there is a declining tendency of the surface tension of two-cardanol betaine type amphoteric surfactant active agent added with inorganic salt.