一系列具有酰胺基[ N,N'-二甲基-N,N'-双(2-烷基酰胺乙基)-乙二胺氧化物(烷基= C 11 H 23,C 13 H 27,C 15 H 31,C 17 H 35)]通过三步合成路线合成,其化学结构已通过质谱,FTIR和1H-NMR谱。已经测量了这些化合物的表面活性。结果表明,这些合成的胺-氧化物双子表面活性剂在2.92×10 -5 mol L -1的浓度下将水的表面张力降低至约26.91 mN m -1的最小值。此外,它们的临界胶束浓度(CMC)值和甲苯的溶解度随着疏水链长度从12到18的增加而降低。等电点测量表明,它们的p I值在4.0到10.5的范围内。
Synthesis of Bis[
<i>N</i>
,
<i>N</i>
′‐(alkylamideethyl)ethyl] Triethylenediamine Bromide Surfactants and Their Oilfield Application Investigation
作者:Ming Zhou、Jinzhou Zhao、Xingqi Hu
DOI:10.1007/s11743-011-1313-0
日期:2012.5
Bis[N,N′‐(alkylamideethyl)ethyl] triethylenediaminesurfactants are quaternary ammonium salt Gemini surfactants with amide, which are synthesized from fatty acid (dodecanoic, hexadecanoic, tetradecanoic and octadecanoic) methyl esters, triethylene tetramine and ethylbromide. The chemical structures of the prepared compounds were characterized by elemental analysis, FTIR and 1H‐NMR spectra, melting
双[ N,N '-(烷基酰胺乙基)乙基]三亚乙基二胺表面活性剂是具有酰胺的季铵盐双子表面活性剂,由脂肪酸(十二烷酸酯,十六烷酸酯,十四烷酸酯和十八烷酸酯),三亚乙基四胺和乙基溴合成。通过元素分析,FTIR和1表征了所制备化合物的化学结构。H‐NMR spectra, melting point and Krafft point. Several properties of the synthesized surfactants were studied including surface tension, critical micelle concentration, interfacial tension, emulsification power, salt effect, corrosion inhibition efficiency and biological activity.
SURFACTANT COMPOSITION, AND MANUFACTURING METHOD AND APPLICATION OF SAME
申请人:China Petroleum & Chemical Corporation
公开号:US20160122621A1
公开(公告)日:2016-05-05
This invention relates to a surfactant composition, production and use thereof in tertiary oil recovery. The present surfactant composition comprises a cationic surfactant and an anionic-nonionic surfactant, and exhibits significantly improved interfacial activity and stability as compared with the prior art. With the present surfactant composition, a flooding fluid composition for tertiary oil recovery with improved oil displacement efficiency and oil washing capability as compared with the prior art could be produced.
Amphoteric surfactants having multiple hydrophobic and hydrophilic groups
申请人:RHONE-POULENC INC.
公开号:EP0697244A1
公开(公告)日:1996-02-21
According to the invention, an improved class of amphoteric surfactant having improved surfactant properties characterized as mild and environmentally safe has been provided comprising compounds of the formula:
The amphoteric surfactant of the subject invention have at least two hydrophobic moieties and at least two hydrophilic groups per molecule and are useful as emulsifiers, detergents, dispersants and solubilizing agents.
Surfactant composition, and manufacturing method and application of same
申请人:China Petroleum & Chemical Corporation
公开号:US10723936B2
公开(公告)日:2020-07-28
This invention relates to a surfactant composition, production and use thereof in tertiary oil recovery. The present surfactant composition comprises a cationic surfactant and an anionic-nonionic surfactant, and exhibits significantly improved interfacial activity and stability as compared with the prior art. With the present surfactant composition, a flooding fluid composition for tertiary oil recovery with improved oil displacement efficiency and oil washing capability as compared with the prior art could be produced.