Ester derivatives of lower alkene oligomers
    22.
    发明授权
    Ester derivatives of lower alkene oligomers 失效
    低级烯烃低聚物的酯衍生物

    公开(公告)号:US5304675A

    公开(公告)日:1994-04-19

    申请号:US625404

    申请日:1990-12-11

    IPC分类号: C07C1/213 C07C11/02 C07C67/02

    CPC分类号: C07C1/213 C07C11/02

    摘要: An ester product consisting essentially of the acylation product of a mixture of near linear aliphatic 1-alkanols, said alkanols containing six to twenty carbon atoms and having a methyl to methylene branch ratio less than 0.25. These novel esters can be further converted to valuable 1-alkenes by pyrrolysis. In the preferred embodiments, esters are derived by acylation of C.sub.9 -C12 1-alkanols having a methyl to methylene branch ratio less than 0.18.In the preferred method of synthesizing the esters, acylation is carried out using aliphatic carboxylic acid, anhydride, halide or ester as acylating agent, wherein the agent has 2 to 20 carbon atoms. For instance, the acylating agent may comprise acetic anhydride and to produce acetate esters.

    摘要翻译: 基本上由近线性脂族1-链烷醇的混合物的酰化产物,所述链烷醇含有6至20个碳原子并具有小于0.25的甲基 - 亚甲基分支比例的酯产物。 这些新型酯可以通过吡咯分解进一步转化为有价值的1-烯烃。 在优选的实施方案中,通过酰化甲基至亚甲基分支比小于0.18的C 9 -C 12 1-链烷醇衍生酯。 在合成酯的优选方法中,使用脂族羧酸,酸酐,卤化物或酯作为酰化剂进行酰化,其中该试剂具有2至20个碳原子。 例如,酰化剂可以包含乙酸酐并产生乙酸酯。

    Chemically stable stiff backbone polymers as mobility control agents in
oil recovery
    25.
    发明授权
    Chemically stable stiff backbone polymers as mobility control agents in oil recovery 失效
    化学稳定的硬骨架聚合物作为油回收中的迁移控制剂

    公开(公告)号:US4577000A

    公开(公告)日:1986-03-18

    申请号:US426590

    申请日:1982-09-29

    摘要: Certain water-soluble polymers retain their viscosities in high brine environments and are highly useful as surfactant-mobility control agents in oil recovery processes. These polymers have stiff backbone chains which are poly-2,6-dimethyl-p-phenylene oxide, polysulfone or poly(p-phenylene ether-sulfone) and side chains which may be formed by halomethylating phenyl rings of these backbone chains followed by quaternizing the halomethyl groups. For more thickening power, the molecular weight of the polymer can be increased by controlled cross-linking with a calculated amount of difunctional amine.

    摘要翻译: 某些水溶性聚合物在高盐水环境中保持其粘度,并且在油回收过程中作为表面活性剂 - 迁移控制剂非常有用。 这些聚合物具有刚性的主链,其是聚2,6-二甲基 - 对苯醚,聚砜或聚(对 - 亚苯基醚 - 砜)和可以通过卤代甲基化这些主链的苯环然后季铵化形成的侧链 卤代甲基。 为了增加功能,可以通过与计算量的双官能胺的控制交联来增加聚合物的分子量。

    Oil recovery by surfactant-alcohol waterflooding
    26.
    发明授权
    Oil recovery by surfactant-alcohol waterflooding 失效
    通过表面活性剂 - 酒精注水来回收油

    公开(公告)号:US4479894A

    公开(公告)日:1984-10-30

    申请号:US391213

    申请日:1982-06-23

    IPC分类号: C09K8/58 E21B43/22

    CPC分类号: C09K8/584 Y10S507/936

    摘要: Waterflooding process for the recovery of oil from a subterranean formation in which at least a portion of the injected water preferably may contain a preferentially oil-soluble alcohol, a sulfobetaine, a quaternary ammonium compound containing at least one long chain hydrocarbyl group and a quaternary ammonium compound with short chain hydrocarbyl groups. This formulation serves both as a surfactant and a mobility control agent.

    摘要翻译: 用于从地层中回收油的注水方法,其中至少一部分注入的水优选可以含有优先油溶的醇,磺基甜菜碱,含有至少一个长链烃基的季铵化合物和季铵 与短链烃基的化合物。 该制剂既用作表面活性剂又用作迁移率控制剂。

    Oil recovery by waterflooding employing anionic polymeric surfactants
    28.
    发明授权
    Oil recovery by waterflooding employing anionic polymeric surfactants 失效
    使用阴离子聚合物表面活性剂通过注水回收油

    公开(公告)号:US4284517A

    公开(公告)日:1981-08-18

    申请号:US954844

    申请日:1978-10-26

    摘要: A method for the recovery of oil from an oil-containing subterranean formation by waterflooding employing as an injection medium an aqueous solution of an anionic polymeric surfactant formed by reacting a polymer including succinic anhydride moieties with a primary amine to provide a polymeric reaction product in which at least 20 mol percent of the anhydride moieties have been converted, by reaction with said amine, to succinimide or succinamide groups. The polymeric anionic surfactants of the invention exhibit good physical and chemical stability, are shear stable, are effective in maintaining the salt stability of other surfactants (such as petroleum sulfonates) and also function as viscosifiers, even in the presence of significant concentrations of divalent metal ions. According to a preferred form of the invention, the surfactants comprise the reaction product of a copolymer of styrene and maleic anhydride and triethylammonium aniline disulfonate, in which reaction product from 20 mol percent to 40 mol percent of the anhydride moieties have been converted to succinimide or succinamide groups.

    摘要翻译: 一种用于通过水驱从含油地层中回收油的方法,该方法是使用作为注射介质的阴离子聚合物表面活性剂的水溶液形成,所述阴离子聚合物表面活性剂是通过使包含琥珀酸酐部分的聚合物与伯胺反应形成的,以提供聚合反应产物,其中 已经通过与所述胺反应将至少20mol%的酸酐部分转化为琥珀酰亚胺或琥珀酰胺基团。 本发明的聚合阴离子表面活性剂表现出良好的物理和化学稳定性,剪切稳定性,在维持其它表面活性剂(如石油磺酸盐)的盐稳定性方面也是有效的,并且也用作增粘剂,即使在存在显着浓度的二价金属 离子。 根据本发明的优选形式,表面活性剂包括苯乙烯和马来酸酐的共聚物与三乙基胺苯胺二磺酸盐的反应产物,其中20摩尔%至40摩尔%的酸酐部分的反应产物已经转化为琥珀酰亚胺或 琥珀酰胺基团。

    Zeolite synthesis with amino acid directing agents
    29.
    发明授权
    Zeolite synthesis with amino acid directing agents 失效
    沸石合成与氨基酸导向剂

    公开(公告)号:US5573746A

    公开(公告)日:1996-11-12

    申请号:US469180

    申请日:1995-06-06

    摘要: Methods for using amino acid as a directing agent in zeolite synthesis are disclosed comprising the steps of:(a) forming a reaction mixture containing water, an alumina source, a silica source, an alkali metal oxide source, and an amino acid as an exterior directing agent; and(b) recovering a porous inorganic solid from said reaction mixture of step (a).

    摘要翻译: 公开了在沸石合成中使用氨基酸作为引导剂的方法,包括以下步骤:(a)形成含有水,氧化铝源,二氧化硅源,碱金属氧化物源和作为外部的氨基酸的反应混合物 指导代理人 和(b)从步骤(a)的反应混合物回收多孔无机固体。