Aqueous cleaning formulation containing a 2-piperazinone, method of
using the same and concentrate for preparing the same
    3.
    发明授权
    Aqueous cleaning formulation containing a 2-piperazinone, method of using the same and concentrate for preparing the same 失效
    含有2-哌嗪酮的水性清洁制剂,其使用方法及其制备方法

    公开(公告)号:US5196146A

    公开(公告)日:1993-03-23

    申请号:US784203

    申请日:1991-10-28

    摘要: An aqueous formulation for cleaning grease and oil from metal, plastic, glass or other surfaces includes water, a surfactant, and a corrosion-inhibiting amount of a 2-piperazinone. The surfactant is chosen from the class of materials possessing at least some ability in aqueous solution to disperse the grease and oil in an aqueous suspension. The formulation preferably includes both an anionic and a nonionic surfactant. The 2-piperazinone inhibits corrosion of the metal or other surface without unduly reducing the dispersive ability of the surfactant(s). The preferred 2-piperazinones for use in the disclosed invention are 4-(2-hydroxyethyl)-2-piperazinone (4-HEP) and N,N-dimethyl-2-piperazinone (NNDP). The formulation is used by agitation in contact with the surface to be cleaned, for example, by mechanical agitation of the surface, by spraying the formulation against the surface, or by the application of ultrasound waves. A concentrate for preparing the formulation contains the surfactant(s) and 2-piperazinone at a concentration 5 to 20 times their concentrations in the formulation; the concentrate is then diluted with 5 to 20 parts of water to yield the formulation.

    摘要翻译: 用于从金属,塑料,玻璃或其他表面清洁油脂和油的水性制剂包括水,表面活性剂和防腐蚀量的2-哌嗪酮。 表面活性剂选自在水溶液中具有至少一些能力的材料,以将油脂和油分散在水性悬浮液中。 制剂优选包括阴离子和非离子表面活性剂。 2-哌嗪酮抑制金属或其他表面的腐蚀,而不会过度降低表面活性剂的分散能力。 用于本发明的优选的2-哌嗪酮是4-(2-羟乙基)-2-哌嗪酮(4-HEP)和N,N-二甲基-2-哌嗪酮(NNDP)。 通过与待清洁的表面接触的搅拌使用该制剂,例如通过机械搅动表面,通过将制剂喷雾在表面上,或通过施加超声波来使用。 用于制备制剂的浓缩物含有浓度为制剂浓度5至20倍的表面活性剂和2-哌嗪酮; 然后将浓缩物用5至20份水稀释以得到制剂。

    Process for recovering organic compounds from aqueous streams containing same
    4.
    发明授权
    Process for recovering organic compounds from aqueous streams containing same 有权
    从含有它们的水流中回收有机化合物的方法

    公开(公告)号:US07713418B2

    公开(公告)日:2010-05-11

    申请号:US10590685

    申请日:2005-02-18

    IPC分类号: B01D15/00 C02F1/44 B01D11/04

    摘要: A method for a liquid-liquid extraction of hydrophilic organic compounds from aqueous solutions thereof is described. The method generally includes intermixing a sufficient quantity of a specified glycol ether with the aqueous liquor at a first temperature to form a suspension comprising an aqueous raffinate phase and a glycol ether extract phase; separating the glycol ether extract phase from the aqueous raffinate phase; heating the glycol ether extract phase to a second, higher temperature to form a suspension comprising an aqueous extract phase containing a portion of the hydrophilic organic compound and a glycol ether raffinate phase; and separating this glycol ether raffinate phase from the aqueous extract phase. The selected glycol ether has an inverse solubility in water and the partition ratio, value K, for the hydrophilic organic compound is greater than 0.1. This method is useful for recovering valuable hydrophilic organic acids produced via fermentation or produced or used in various manufacturing processes.

    摘要翻译: 描述了从其水溶液中液 - 液萃取亲水性有机化合物的方法。 该方法通常包括在第一温度下将足够量的特定二醇醚与含水液体混合以形成包含残液相和二醇醚萃取相的悬浮液; 从萃余水相中分离出乙二醇醚萃取相; 将乙二醇醚提取相加热至第二较高温度以形成包含含有一部分亲水性有机化合物和二醇醚萃余相的含水萃取相的悬浮液; 并从水相萃取相中分离出该二醇醚萃余相。 所选择的二醇醚在水中具有相反的溶解度,并且亲水性有机化合物的分配比值K大于0.1。 该方法可用于回收通过发酵生产或生产或用于各种制造工艺中的有价值的亲水性有机酸。

    Anionic polymerization of cis- and trans-1,3-pentadiene from a mixture
of saturated and unsaturated hydrocarbons
    5.
    发明授权
    Anionic polymerization of cis- and trans-1,3-pentadiene from a mixture of saturated and unsaturated hydrocarbons 失效
    来自饱和和不饱和烃的混合物的顺式和反式-1,3-戊二烯的阴离子聚合

    公开(公告)号:US4486614A

    公开(公告)日:1984-12-04

    申请号:US517171

    申请日:1983-07-25

    摘要: 1,3-pentadiene is polymerized from a mixture of saturated and unsaturated hydrocarbon compounds, the compounds having primarily 5 carbon atoms per molecule, with an anionic polymerization initiator. The mixture of saturated and unsaturated hydrocarbon compounds is contacted, in an inert atmosphere, with an anionic polymerization initiator to form a reaction mixture. The anionic polymerization initiator is present in an amount sufficient to inactivate polymerization-terminating compounds present in the mixture and to initiate polymerization of 1,3-pentadiene from the mixture. The reaction mixture is heated with stirring to a temperature sufficient to inactivate the polymerization terminating compounds. After inactivation of the polymerization terminating compounds, the reaction mixture is then heated with stirring to a temperature sufficient to initiate polymerization of 1,3-pentadiene from the reaction mixture. Polymer recovery and subsequent functionalization, if any, follow thereafter.

    摘要翻译: 1,3-戊二烯由饱和和不饱和烃化合物的混合物聚合,每分子具有大约5个碳原子的化合物与阴离子聚合引发剂一起聚合。 饱和和不饱和烃化合物的混合物在惰性气氛中与阴离子聚合引发剂接触以形成反应混合物。 阴离子聚合引发剂的存在量足以使存在于混合物中的聚合终止化合物失活并引发1,3-戊二烯从混合物中的聚合。 将反应混合物在搅拌下加热至足以灭活聚合终止化合物的温度。 在聚合终止化合物失活后,然后将反应混合物在搅拌下加热至足以引发来自反应混合物的1,3-戊二烯聚合的温度。 聚合物回收和随后的功能化(如果有的话)随后进行。

    Enzymatic resolution of propylene glycol alkyl (or aryl) ethers and ether acetates
    6.
    发明授权
    Enzymatic resolution of propylene glycol alkyl (or aryl) ethers and ether acetates 失效
    丙二醇烷基(或芳基)醚和醚乙酸酯的酶解

    公开(公告)号:US07264960B2

    公开(公告)日:2007-09-04

    申请号:US10502692

    申请日:2003-03-21

    IPC分类号: C12P41/00

    CPC分类号: C12P7/18 C12P41/004

    摘要: Glycol ether acetates, and in particular propylene glycol alkyl (or aryl) ether acetates, can be resolved enzymatically by enantioselective hydrolysis with a hydrolase at high concentrations of substrates; in some embodiments, the hydrolase is a lipase. Glycol ethers, and in particular propylene glycol alkyl (or aryl) ethers, can be resolved enzymatically by enantioselective transesterification with a hydrolase, in the presence of an acyl donor, at high concentrations of substrates; in some embodiments, the hydrolase is a lipase.

    摘要翻译: 乙二醇醚乙酸酯,特别是丙二醇烷基(或芳基)醚乙酸酯可以通过在高浓度底物下用水解酶进行对映选择性水解来酶解; 在一些实施方案中,水解酶是脂肪酶。 乙二醇醚,特别是丙二醇烷基(或芳基)醚可以通过在酰基供体存在下,在高浓度底物下用水解酶进行对映选择性酯交换酶解解; 在一些实施方案中,水解酶是脂肪酶。

    Solvent recovery from waste oils
    7.
    发明授权
    Solvent recovery from waste oils 失效
    从废油中回收溶剂

    公开(公告)号:US5429720A

    公开(公告)日:1995-07-04

    申请号:US187361

    申请日:1994-01-26

    IPC分类号: B01D3/34

    CPC分类号: B01D3/34

    摘要: A distillation process for separating spent organic solvents such as trichloroethane or d-limonene from their contaminants such as oil is improved by the addition of a perfluorinated alkane or mixture of such alkanes to permit more efficient separation of the solvents from the oil.

    摘要翻译: 通过加入全氟化烷烃或这种烷烃的混合物来改进从其污染物如油分离废有机溶剂如三氯乙烷或d-柠檬烯的蒸馏方法,以允许溶剂与​​油的更有效的分离。

    Process for removing water from aqueous solutions of proteins
    10.
    发明授权
    Process for removing water from aqueous solutions of proteins 有权
    从蛋白质水溶液中除去水分的方法

    公开(公告)号:US08883472B2

    公开(公告)日:2014-11-11

    申请号:US10590095

    申请日:2005-02-18

    IPC分类号: C07K1/00 C07K1/14

    CPC分类号: C07K1/145

    摘要: A method for extracting water from an aqueous solution of a protein comprising the steps of: (a) intermixing the aqueous solution of the protein with a sufficient quantity of at least one glycol ether at a temperature at least 30 centigrade degrees above the lower critical solution temperature (LCST), preferably at least 20 centigrade degrees above the LCST, and most preferably at least 10 degrees above the LCST, to form a suspension comprising a concentrated aqueous protein phase and a liquid organic phase comprising said at least one glycol ether and at least 10 percent water extracted from the aqueous solution of the protein, wherein the glycol ether has an inverse solubility in water, with the proviso that the solubility of the glycol ether in water is significantly less than the solubility of water in the glycol ether, and the glycol ether does not significantly deactivate the protein, and (b) separating the concentrated aqueous protein phase formed in step (a) from at least a portion of the liquid organic phase.

    摘要翻译: 一种从蛋白质水溶液中提取水的方法,包括以下步骤:(a)将蛋白质水溶液与足够量的至少一种二醇醚在比较低临界溶液高至少30摄氏度的温度下混合 温度(LCST),优选高于LCST至少20摄氏度,最优选高于LCST至少10度,以形成包含浓缩的蛋白质水相和包含所述至少一种二醇醚的液体有机相的悬浮液,并且在 从蛋白质水溶液中提取的最少10%的水,其中乙二醇醚在水中具有相反的溶解度,条件是二醇醚在水中的溶解度显着小于水在乙二醇醚中的溶解度,以及 乙二醇醚不会使蛋白质显着失活,和(b)将步骤(a)中形成的浓缩水性蛋白质相从至少一个孔 液体有机相。