Separation of citric acid from fermentation broth with a strongly basic
anionic exchange resin adsorbent
    61.
    发明授权
    Separation of citric acid from fermentation broth with a strongly basic anionic exchange resin adsorbent 失效
    用强碱性阴离子交换树脂吸附剂从发酵液中分离柠檬酸

    公开(公告)号:US4851574A

    公开(公告)日:1989-07-25

    申请号:US122161

    申请日:1987-11-16

    IPC分类号: C07C51/47

    CPC分类号: C07C51/47

    摘要: Citric acid is separated from a fermentation broth by using an adsorbent comprising a strongly water-insoluble, macroreticular or gel, basis anionic exchange resin possessing quaternary amine functional groups, said a anionic exchange resin having a cross-linked acrylic or styrene resin matrix and a desorbent comprising water or dilute sulfuric acid. The pH of the feed is maintained below the first ionization constant (pKa.sub.1) of citric acid to maintain selectivity.

    摘要翻译: 所述阴离子交换树脂具有交联的丙烯酸或苯乙烯树脂基质和具有季铵胺官能团的阴离子交换树脂,所述吸附剂包含具有强非水溶性,大网络或凝胶的基于阴离子交换树脂的吸附剂,从发酵液中分离柠檬酸。 包含水或稀硫酸的解吸剂。 饲料的pH值保持在柠檬酸的第一电离常数(pKa1)以下以保持选择性。

    Process for separating glucose and mannose with CA/NH4 - exchanged ion
exchange resins
    62.
    发明授权
    Process for separating glucose and mannose with CA/NH4 - exchanged ion exchange resins 失效
    用CA / NH4交换离子交换树脂分离葡萄糖和甘露糖的方法

    公开(公告)号:US4837315A

    公开(公告)日:1989-06-06

    申请号:US64642

    申请日:1987-06-22

    IPC分类号: C07H3/02

    CPC分类号: C07H3/02

    摘要: Mannose is separated from mixtures with glucose and other saccharides by adsorption of sulfonated polystyrene divinylbenzene crosslinked ion exchange resins, and desorbing the adsorbate with water. Glucose is removed from the adsorption process in the raffinate.

    摘要翻译: 甘露糖通过吸附磺化聚苯乙烯二乙烯基苯交联离子交换树脂与葡萄糖和其他糖类的混合物分离,并用水解吸附物质。 从残液中的吸附过程中除去葡萄糖。

    Process for separating fatty acids
    66.
    发明授权
    Process for separating fatty acids 失效
    分离脂肪酸的方法

    公开(公告)号:US4524030A

    公开(公告)日:1985-06-18

    申请号:US539859

    申请日:1983-10-07

    IPC分类号: C11C1/08

    CPC分类号: C11C1/08 C07C51/47

    摘要: This invention comprises a process for separating a fatty acid from a mixture comprising a fatty acid and a rosin acid, which process comprises contacting the mixture at separation conditions with a molecular sieve comprising a crystalline silica, thereby selectively retaining the fatty acid. The fatty acid is recovered from the molecular sieve by displacement with a displacement fluid comprising an ester containing less than six carbon atoms per molecule. Once the rosin acid is removed from the feed mixture, the process is also effective in separating the fatty acids from each other, using the same molecular sieve and displacement fluid.

    摘要翻译: 本发明包括从包含脂肪酸和松香酸的混合物中分离脂肪酸的方法,该方法包括在分离条件下使混合物与包含结晶二氧化硅的分子筛接触,从而选择性地保留脂肪酸。 通过置换含有每分子含有少于6个碳原子的酯的置换液从分子筛中回收脂肪酸。 一旦从进料混合物中除去松香酸,该方法也有效地使用相同的分子筛和置换流体彼此分离脂肪酸。

    Process for separating fatty acids from unsaponifiables
    67.
    发明授权
    Process for separating fatty acids from unsaponifiables 失效
    从不皂化物中分离脂肪酸的方法

    公开(公告)号:US4519952A

    公开(公告)日:1985-05-28

    申请号:US533463

    申请日:1983-09-19

    IPC分类号: C11C1/08

    CPC分类号: C11C1/08

    摘要: This invention comprises a process for separating a fatty acid from a mixture comprising a fatty acid and an unsaponifiable compound, which process comprises contacting the mixture at separation conditions with a molecular sieve comprising a crystalline silica having a silica to alumina mole ratio of at least 12, thereby selectively retaining the fatty acid. The fatty acid is recovered from the molecular sieve by displacement at displacement conditions with a displacement fluid soluble in the feed mixture and having a polarity index of at least 3.5.

    摘要翻译: 本发明包括从包含脂肪酸和不皂化合物的混合物中分离脂肪酸的方法,该方法包括在分离条件下将混合物与包含二氧化硅与氧化铝摩尔比为至少12的结晶二氧化硅的分子筛 ,从而选择性地保留脂肪酸。 脂肪酸通过在置换条件下置换而从分子筛中回收,其中位移流体可溶于进料混合物并具有至少3.5的极性指数。

    Process for separating oleic acid from linoleic acid
    68.
    发明授权
    Process for separating oleic acid from linoleic acid 失效
    从亚油酸分离油酸的方法

    公开(公告)号:US4511514A

    公开(公告)日:1985-04-16

    申请号:US435134

    申请日:1982-10-18

    IPC分类号: C07C51/47 C11C1/08 C11B3/16

    摘要: This invention comprises a process for separating oleic acid from a feed mixture comprising an oleic acid and linoleic acid, which process comprises contacting the mixture at separation conditions with a molecular sieve comprising silicalite, thereby selectively retaining the oleic acid. The oleic acid may be recovered from the molecular sieve by displacement with a displacement fluid. The feed mixture may also contain rosin acids in which case a first molecular sieve comprising silicalite is used to separate the fatty acids from the rosin acids.

    摘要翻译: 本发明包括从包含油酸和亚油酸的进料混合物中分离油酸的方法,该方法包括在分离条件下将混合物与包含硅沸石的分子筛接触,从而选择性地保留油酸。 可以通过用置换流体置换从分子筛中回收油酸。 进料混合物还可以含有松香酸,在这种情况下,使用包含硅沸石的第一分子筛将脂肪酸与松香酸分离。

    Process for separating unsaponifiables from fatty and rosin acids
    69.
    发明授权
    Process for separating unsaponifiables from fatty and rosin acids 失效
    将不皂化物与脂肪和松香酸分离的方法

    公开(公告)号:US4496478A

    公开(公告)日:1985-01-29

    申请号:US584030

    申请日:1984-02-27

    IPC分类号: C11C1/08 C09F1/00 C09F5/10

    CPC分类号: C11C1/08

    摘要: A process for separating an unsaponifiable compound from a feed mixture including fatty and/or rosin acids. The process comprises: (a) forming an emulsion with the feed mixture, an organic solvent in which the feed mixture is soluble and an emulsifying liquid capable of forming an emulsion with the feedstock and organic solvent, the polarity index of the emulsifying liquid being at least 2.4 higher than the polarity index of the organic solvent; (b) effecting the formation of three phases from the emulsion, an organic solvent phase containing the major portion of the fatty or rosin acids, an emulsifying liquid phase and a semi-solid sludge phase containing the major portion of the unsaponifiable compound; and (c) separating the three phases.

    摘要翻译: 一种从不可皂化的化合物与包含脂肪和/或松香酸的进料混合物分离的方法。 该方法包括:(a)与进料混合物形成乳液,其中可混合进料混合物的有机溶剂和能够与原料和有机溶剂形成乳液的乳化液,乳化液体的极性指数为 比有机溶剂的极性指数低2.4; (b)从乳液形成三相,含有主要部分的脂肪或松香酸的有机溶剂相,含有主要部分不可皂化化合物的乳化液相和半固体污泥相; 和(c)分离三相。

    Use of esterified silica for separation of ethanol from water
    70.
    发明授权
    Use of esterified silica for separation of ethanol from water 失效
    使用酯化二氧化硅从水中分离乙醇

    公开(公告)号:US4343623A

    公开(公告)日:1982-08-10

    申请号:US219121

    申请日:1980-12-22

    IPC分类号: C07C29/76 C10L1/02

    CPC分类号: C10L1/02 C07C29/76

    摘要: An adsorptive separation process for separating ethanol from a feed mixture comprising ethanol and water, which process comprises contacting the feed mixture with an adsorbent comprising esterified silica selectively adsorbing substantially all of the ethanol to be separated to the substantial exclusion of the water and thereafter recovering high purity ethanol. A desorption step may be used to desorb the adsorbed ethanol.

    摘要翻译: 用于从包含乙醇和水的进料混合物中分离乙醇的吸附分离方法,该方法包括使进料混合物与包含酯化二氧化硅的吸附剂接触,所述吸附剂选择性地吸附要分离的基本上所有的乙醇以实质上排除水,然后回收高 纯乙醇。 解吸步骤可用于解吸吸附的乙醇。