Using dialkyl amide <i>via</i> forming hydrophobic deep eutectic solvents to separate citric acid from fermentation broth
作者:Lijuan Liu、Qifeng Wei、Yong Zhou、Xiulian Ren
DOI:10.1039/c9gc04401a
日期:——
traditional calcium salt method which produces a large amount of waste gypsum residue, a new way of separating citric acid from fermentation broth was developed by forming hydrophobic deep eutectic solvents (DESs), in which amide and citric acid were used as the hydrogen bond acceptor and donor respectively when amide was in contact with the fermentation broth containing citric acid. Among these amides
如今,开发适当的技术是社会减少环境影响的最大挑战之一。在这项研究中,为避免传统的钙盐方法产生大量的石膏废渣,通过形成疏水性深共熔溶剂(DESs)(其中酰胺和柠檬酸为二氯乙烷),开发了一种从发酵液中分离柠檬酸的新方法。当酰胺与含柠檬酸的发酵液接触时,分别用作氢键受体和供体。在这些酰胺中,C 10 H 21根据分子大小和形状,发现NO是与柠檬酸形成疏水性DES的有效氢键受体,其最大疏水平衡常数为3.14。通过使用FT-IR和量子化学(QC)计算分析化学键,研究了疏水性DES的形成机理。通过升高疏水性DES的温度来再生C 10 H 21 NO。再生的C 10 H 21 NO表现出良好的再循环特性,而形成疏水性DES的能力没有明显降低。这种获得高质量柠檬酸的有效方法为分离其他羧酸提供了新思路。
METHODS AND COMPOSITIONS FOR USE IN OIL AND/OR GAS WELLS COMPRISING A TERPENE ALCOHOL
申请人:Flotek Chemistry, LLC
公开号:EP3144366A1
公开(公告)日:2017-03-22
Methods and compositions comprising an emulsion or a microemulsion for use in various aspects of the life cycle of an oil and/or gas well are provided. In some embodiments, the emulsion or the microemulsion comprises an aqueous phase, a nonaqueous phase comprising a terpene alcohol a non-oxygenated terpene, and a surfactant, and optionally, one or more additives.
Methods and compositions for use in oil and/or gas wells
申请人:Flotek Chemistry, LLC
公开号:US10000693B2
公开(公告)日:2018-06-19
Methods and compositions comprising an emulsion or a microemulsion for use in various aspects of the life cycle of an oil and/or gas well are provided. In some embodiments, the emulsion or the microemulsion comprises water, a solvent, and a surfactant, and optionally, one or more additives.
Methods and compositions for use in oil and/or gas wells comprising a terpene alcohol
申请人:Flotek Chemistry, LLC
公开号:US10287483B2
公开(公告)日:2019-05-14
Methods and compositions comprising an emulsion or a microemulsion for use in various aspects of the life cycle of an oil and/or gas well are provided. In some embodiments, the emulsion or the microemulsion comprises an aqueous phase, a non-aqueous phase comprising a terpene alcohol a non-oxygenated terpene, and a surfactant, and optionally, one or more additives.
Polymers and emulsions for use in oil and/or gas wells
申请人:Flotek Chemistry, LLC
公开号:US10577531B2
公开(公告)日:2020-03-03
Methods and compositions comprising an emulsion or a microemulsion and a polymer for use in an oil and/or gas well are provided. In some embodiments, the emulsion or the microemulsion comprises water, a solvent, and a surfactant, and optionally, one or more additives. In certain embodiments, the polymer comprises a copolymer comprising an acrylamide.