Process for producing 1, 3-propanediol
    44.
    发明申请
    Process for producing 1, 3-propanediol 有权
    1,3-丙二醇生产方法

    公开(公告)号:US20040222153A1

    公开(公告)日:2004-11-11

    申请号:US10430498

    申请日:2003-05-06

    Abstract: Disclosed herein are processes for the recovery of 1,3-propanediol from an aqueous feed stream. The present invention involves contacting an aqueous feed stream that comprises water, 1,3-propanediol, and at least one contaminant with at least one solvent extractant to form a mixture. The mixture is separated into a first phase and a second phase. The second phase comprises a majority of the water from the aqueous feed stream. The first phase comprises solvent extractant and at least some of the 1,3-propanediol that was present in the aqueous feed stream. The weight ratio in the first phase of 1,3-propanediol to any one contaminant present is greater than the weight ratio of 1,3-propanediol to the same contaminant in the aqueous feed stream prior to the aqueous feed stream being contacted with the solvent extractant. The first phase can be removed from the separated second phase in order to recover the 1,3-propanediol.

    Abstract translation: 本文公开了从含水原料流中回收1,3-丙二醇的方法。 本发明涉及将包含水,1,3-丙二醇和至少一种污染物的含水进料流与至少一种溶剂萃取剂接触以形成混合物。 将混合物分离成第一相和第二相。 第二相包含来自含水进料流的大部分水。 第一阶段包括溶剂萃取剂和存在于含水进料流中的至少一些1,3-丙二醇。 在水性进料流与溶剂接触之前,1,3-丙二醇与任何一种污染物的第一相中的重量比大于1,3-丙二醇与含水进料流中相同污染物的重量比 萃取剂。 为了回收1,3-丙二醇,可以将第一相从分离的第二相中除去。

    High molecular weight primary aliphatic alcohols obtained from natural products and uses thereof
    45.
    发明申请
    High molecular weight primary aliphatic alcohols obtained from natural products and uses thereof 有权
    由天然产物获得的高分子量伯脂肪醇及其用途

    公开(公告)号:US20030096876A1

    公开(公告)日:2003-05-22

    申请号:US10133986

    申请日:2002-04-25

    CPC classification number: C07C29/76 C07C29/86 C07C31/125 C07C33/025

    Abstract: The present invention relates to a naturally obtained mixture of higher molecular weight primary aliphatic alcohols which contain 20 to 34 carbon atoms. This invention also relates to the process for obtaining the alcohol mixture by extraction and purification with organic solvents from a natural product, such as beeswax with and without saponification of the natural product. The alcohol mixture obtained from beeswax has enhanced purity and contains a mixture of alcohols having 20, 22, 24, 26, 27, 28, 30, 32 and 34 carbon atoms. The alcohol mixture is useful in pharmaceutical compositions, foodstuffs and dietary supplements and is effective for lowering cholesterol and LDL-cholesterol and increasing HDL-cholesterol levels so that it is effective in treating hypercholesterolemia. Consequently the composition may be used to reduce the risk of coronary heart disease, to inhibit the atherosclerotic process (platelet hyperaggregability, ischemia and thrombosis) and also to act as an anti-inflammatory and anti-thrombotic agent. The composition also possesses neurotrophic properties and is useful for improving male sexual activity.

    Abstract translation: 本发明涉及一种天然得到的含有20至34个碳原子的较高分子量伯脂肪醇的混合物。 本发明还涉及通过天然产物如天然产物皂化天然产物如蜂蜡中的有机溶剂萃取和纯化获得醇混合物的方法。 从蜂蜡获得的醇混合物具有提高的纯度,并且含有具有20,22,24,26,27,28,30,32和34个碳原子的醇的混合物。 酒精混合物可用于药物组合物,食品和膳食补充剂中,并有效降低胆固醇和低密度脂蛋白胆固醇,并增加HDL-胆固醇水平,从而有效治疗高胆固醇血症。 因此,该组合物可用于降低冠心病的风险,抑制动脉粥样硬化过程(血小板超聚集,缺血和血栓形成),并且还可用作抗炎和抗血栓形成剂。 该组合物还具有神经营养性质,可用于改善男性的性活动。

    High molecular weight primary aliphatic alcohols obtained from natural products and uses thereof
    46.
    发明申请
    High molecular weight primary aliphatic alcohols obtained from natural products and uses thereof 审中-公开
    由天然产物得到的高分子量伯脂肪醇及其用途

    公开(公告)号:US20020099099A1

    公开(公告)日:2002-07-25

    申请号:US09949285

    申请日:2001-09-07

    CPC classification number: C07C29/76 C07C29/86 C07C31/125 C12C11/02 C07C31/02

    Abstract: The present invention relates to a naturally obtained mixture of higher molecular weight primary aliphatic alcohols which contain 20 to 34 carbon atoms. This invention also relates to the process for obtaining the alcohol mixture by extraction and purification with organic solvents from a natural product, such as beeswax with and without saponification of the natural product. The alcohol mixture obtained from beeswax has enhanced purity and contains a mixture of alcohols having 20, 22, 24, 26, 27, 28, 30, 32 and 34 carbon atoms. The alcohol mixture is useful in pharmaceutical compositions, foodstuffs and dietary supplements and is effective for lowering cholesterol levels so that it is effective in treating hypercholesterolemia.

    Abstract translation: 本发明涉及一种天然得到的含有20至34个碳原子的较高分子量伯脂肪醇的混合物。 本发明还涉及通过天然产物如天然产物皂化天然产物如蜂蜡中的有机溶剂萃取和纯化获得醇混合物的方法。 从蜂蜡获得的醇混合物具有提高的纯度,并且含有具有20,22,24,26,27,28,30,32和34个碳原子的醇的混合物。 醇混合物可用于药物组合物,食品和膳食补充剂中,并有效降低胆固醇水平,从而有效治疗高胆固醇血症。

    Process for producing a polyol
    48.
    发明申请
    Process for producing a polyol 有权
    多元醇的制造方法

    公开(公告)号:US20020007095A1

    公开(公告)日:2002-01-17

    申请号:US09874276

    申请日:2001-06-06

    CPC classification number: C07C29/38 C07C29/80 C07C29/86 Y02P20/582 C07C31/22

    Abstract: A process for producing a polyol by reacting an aliphatic aldehyde with formaldehyde in the presence of a basic catalyst, which comprises a step of concentration which comprises removing water and unreacted formaldehyde from a reaction liquid by distillation; a step of extraction which comprises extracting the polyol from a concentrated reaction liquid with an extracting reagent; a step of washing with water which comprises washing an extract liquid with water and separating the liquid into an oil layer containing the polyol and an aqueous layer; wherein by useing an specific aliphatic aldehyde as the extracting agent and recovering the extracting reagent from the oil layer containing the polyol after adjusting pH of the oil layer, a high purity polyhydric alcohol can be obtained at a high yield with suppressed formation of byproducts such as acetal compounds and aldol compounds.

    Abstract translation: 一种通过在碱性催化剂存在下使脂族醛与甲醛反应制备多元醇的方法,该方法包括浓缩步骤,该步骤包括通过蒸馏从反应液中除去水和未反应的甲醛; 提取步骤,其包括用提取试剂从浓缩的反应液中提取多元醇; 用水洗涤步骤,包括用水洗涤萃取液并将液体分离成含有多元醇和水层的油层; 其中,通过使用特定的脂族醛作为提取剂,并且在调整油层的pH后,从含有多元醇的油层中回收提取试剂,可以高产率地获得高纯度的多元醇,抑制副产物的形成,例如 缩醛化合物和醛醇化合物。

    Process improvement to produce low color trimethylolpropane
    49.
    发明授权
    Process improvement to produce low color trimethylolpropane 失效
    生产低色三羟甲基丙烷的工艺改进

    公开(公告)号:US5948943A

    公开(公告)日:1999-09-07

    申请号:US951607

    申请日:1997-10-16

    CPC classification number: C07C29/86 C07C29/38

    Abstract: Disclosed is a process for acquiring crude trimethylolpropane (TMP) of low reacted color. TMP is generally prepared by the condensation of n-butyraldehyde and formaldehyde in an alkali solution. The mixture is then concentrated and placed through an extractor. It has been found that a high concentration of low color TMP is present in the extractor and may by obtained by taking a slip stream of hot organic/water/TMP from the extractor and allowing the mixture to cool and phase separate. Upon separation of the phases, TMP generally having an acid wash color of about or less than 5 GU is recovered from the water phase. Disclosed is use of a single and multistage extractor.

    Abstract translation: 公开了一种获得低反应颜色的粗三羟甲基丙烷(TMP)的方法。 通常通过正丁醛和甲醛在碱性溶液中缩合制备TMP。 然后将混合物浓缩并通过提取器放置。 已经发现,提取器中存在高浓度的低色TMP,并且可以通过从提取器中取出热的有机/水/ TMP的滑流获得并使混合物冷却并分相。 在分离相时,从水相中回收通常具有大约或小于5GU的酸洗颜色的TMP。 公开了使用单级和多级提取器。

    Recovery of isopropyl acetate and ethanol from an isopropyl acetate
ethanol and water-containing stream
    50.
    再颁专利
    Recovery of isopropyl acetate and ethanol from an isopropyl acetate ethanol and water-containing stream 失效
    从乙酸异丙酯乙醇和含水流中回收乙酸异丙酯和乙醇

    公开(公告)号:USRE35107E

    公开(公告)日:1995-12-05

    申请号:US929169

    申请日:1992-08-11

    Inventor: William J. Curry

    CPC classification number: C07C29/86 B01D11/0488 B01D3/40 C07C67/58 Y10S203/13

    Abstract: High purity isopropyl acetate and ethanol are recovered from a process stream containing isopropyl acetate, ethanol and water by a multiple step process including extracting substantially all of the ethanol from the stream using water as a solvent, stripping the extract stream to remove substantially all of the remaining isopropyl acetate as an overhead recycle stream, which is combined with the fresh feed stream prior to the extraction step, fractionating the ethanol-rich stripping column bottoms stream to produce a ethanol-water azeotropic overhead stream and using a portion of the fractionating column bottoms stream as the solvent for the extraction step.

    Abstract translation: 通过多步法从含有乙酸异丙酯,乙醇和水的工艺物流中回收高纯度乙酸异丙酯和乙醇,包括使用水作为溶剂从流中提取基本上所有的乙醇,汽提萃取物流以除去基本上所有的 剩余的乙酸异丙酯作为塔顶再循环料流,其在萃取步骤之前与新鲜进料流组合,分馏富含乙醇的汽提塔塔底物流以产生乙醇 - 水共沸塔顶馏出物并使用一部分分馏塔底 流作为萃取步骤的溶剂。

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