Process for the extraction of fats and oils
    2.
    发明授权
    Process for the extraction of fats and oils 失效
    脂肪和油的提取方法

    公开(公告)号:US5405633A

    公开(公告)日:1995-04-11

    申请号:US131296

    申请日:1993-10-04

    IPC分类号: C09F5/02 C11B1/10 A23D9/02

    CPC分类号: C11B1/104

    摘要: A process for the extraction of fats and oils from natural substances using liquid propane as the solvent is described in which the extraction is carried out at a pressure of 10 to 30 bar and a temperature of 10.degree. to 55.degree. C. and the separation of the extracted fats and oils from the solvent is carried out by means of pressure reduction or/and temperature increase to .ltoreq.80.degree. C. High quality products are isolated in this way in a good yield and under mild conditions.

    摘要翻译: 描述了使用液体丙烷作为溶剂从天然物质中提取脂肪和油的方法,其中提取在10至30巴的压力和10至55℃的温度下进行, 从溶剂中提取的脂肪和油通过减压或/或升温至<80℃进行。高产品以这种方式以良好的产率和温和的条件分离。

    Process for the fractionation of wool wax acid mixtures
    7.
    发明授权
    Process for the fractionation of wool wax acid mixtures 失效
    羊毛蜡酸混合物分馏方法

    公开(公告)号:US5811563A

    公开(公告)日:1998-09-22

    申请号:US614131

    申请日:1996-03-12

    摘要: Disclosed is a process for the fractionation of wool wax acid mixtures by dissolving the starting material in a polar organic solvent (mixture). The dissolved wool wax acid mixture is treated at a temperature between -5 and 30.degree. C. and at a pressure between 10 and 70 bar with gaseous carbon dioxide and the hydroxy-fatty acids that accumulate as a solid are separated from the solution.

    摘要翻译: 公开了通过将原料溶解在极性有机溶剂(混合物)中来分级羊毛蜡酸混合物的方法。 将溶解的羊毛蜡酸混合物在-5至30℃的温度和10至70巴之间的压力下用气态二氧化碳处理,并将作为固体积聚的羟基脂肪酸与溶液分离。

    Process for the purification of carbohydrate derivatives with
surface-active properties
    9.
    发明授权
    Process for the purification of carbohydrate derivatives with surface-active properties 失效
    具有表面活性特性的碳水化合物衍生物的纯化方法

    公开(公告)号:US5703228A

    公开(公告)日:1997-12-30

    申请号:US598348

    申请日:1996-02-08

    IPC分类号: C07H1/06 C07H15/04 C07H1/00

    CPC分类号: C07H15/04

    摘要: A process is described for the purification of carbohydrate derivatives with surface-active properties in which an extraction process is used to liberate the solid or liquid starting material from undesired lipophilic by-products by the use of compressed propane or a proportionate mixture thereof with butane at pressures between 8 and 150 bar and a process temperature below 120.degree. C. In this way it is possible to isolate valuable raw materials in a gentle manner either batch-wise or continuously which meet the high purity requirements, for example in the field of cosmetics.

    摘要翻译: 描述了用于纯化具有表面活性特性的碳水化合物衍生物的方法,其中使用提取方法通过使用压缩丙烷或其与丁烷的比例混合物从不期望的亲脂性副产物释放固体或液体原料 压力在8至150巴之间,加工温度低于120℃。以这种方式,可以以温和的方式分离或连续分离有价值的原料,以满足高纯度要求,例如在化妆品领域 。

    Method of thickening salt-containing media by adding methacrylate derivatives
    10.
    发明申请
    Method of thickening salt-containing media by adding methacrylate derivatives 审中-公开
    通过加入甲基丙烯酸酯衍生物来增稠含盐介质的方法

    公开(公告)号:US20080004188A1

    公开(公告)日:2008-01-03

    申请号:US11706873

    申请日:2007-02-15

    IPC分类号: C09K8/12

    摘要: Methacrylate derivatives are added to salt-containing media to thicken the media, and are particularly useful in the exploration of mineral oil or natural gas deposits. The salt-containing media have a specific density of 1.2 to 2.5 kg/l. The respective methacrylate derivatives, which may be, e.g., mono- and/or difunctional variants, have been found to be particularly suitable, are used in a volume ratio of 100 to 1:1 and an amount of 0.5 to 15% by volume. The thickening of the salt-containing media is effected primarily as gel formation, which can be carried out with the aid of free radical initiators and at elevated temperatures. In particular, completion brines, drilling and drill-in fluids and fracturing fluids and acids having high salt contents are to be regarded as aqueous media. The methacrylate derivatives have a markedly good solubility in heavy brines, as are used primarily in upstream processes of the oil industry. They can also be polymerized subterraneously, and they simultaneously have a high thermal stability.

    摘要翻译: 将甲基丙烯酸酯衍生物加入到含盐介质中以增稠介质,并且特别可用于勘探矿物油或天然气沉积物。 含盐介质的特定密度为1.2〜2.5kg / l。 已经发现各自的甲基丙烯酸酯衍生物,其可以是例如单 - 和/或二官能的变体,特别适合的是以体积比为100:1至1:1,量为0.5至15体积%的量使用。 含盐介质的增稠主要作为凝胶形成,其可以借助自由基引发剂和升高的温度进行。 具体来说,完井盐水,钻井钻井液和压裂液以及盐含量高的酸被认为是含水介质。 甲基丙烯酸酯衍生物在重盐水中具有显着良好的溶解度,主要用于石油工业的上游方法。 它们也可以在亚区域聚合,同时具有很高的热稳定性。