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    • 22. 发明申请
    • Process for the Production of Titanium Products
    • 钛产品生产工艺
    • US20090158895A1
    • 2009-06-25
    • US12083362
    • 2006-10-15
    • Asher VitnerAharon EyalRevital Mali
    • Asher VitnerAharon EyalRevital Mali
    • C01B17/96C01G23/04C01G25/06C22B34/12
    • C01G23/002B82Y30/00C01G23/008C01G23/04C01G23/0532C01G49/009C01G49/14C01P2004/62C01P2004/64C01P2006/80
    • The invention provides a method for the Industrial purification of a titanium feed stream of purity P1, by the formation of a titanium-double-salt precipitate of purity P2 and a titanium solution with purity P3, wherein P2>P1>P3, the method comprising the steps of: i. forming, from the feed, a medium comprising water, titanium ion, a cation selected from the group consisting of ammonium, cations of alkali metals, protons and a combination thereof, and an anion selected from the group consisting of OH, SO4, HSO4, halides and a combination thereof, which formed medium is further characterized by the presence of (a) a double-salt precipitate comprising titanium ion, at least one of the cations and at least one of the anions; and (b) a titanium solution; and wherein the concentration of the anion in the titanium solution is higher than 15% and the ratio between the concentrations of the cation and the anion in the titanium solution is higher than 0.2 and lower than 1.6; and ii. separating at least a portion of the precipitate from the solution.
    • 本发明提供了通过形成纯度为P2的钛 - 双盐沉淀物和纯度为P3的钛溶液(其中P2> P1> P3),纯化P1纯钛进料流的工业纯化方法,该方法包括 步骤:i。 从进料形成包含水,钛离子,选自铵,碱金属阳离子,质子及其组合的阳离子和选自OH,SO 4,HSO 4, 形成介质的卤化物及其组合的特征还在于存在(a)包含钛离子,至少一种阳离子和至少一种阴离子的双盐沉淀物; 和(b)钛溶液; 并且其中钛溶液中阴离子的浓度高于15%,并且钛溶液中阳离子和阴离子的浓度之比高于0.2且低于1.6; 和ii。 从溶液中分离出至少一部分沉淀物。
    • 24. 发明授权
    • Process for the recovery of citric acid
    • 回收柠檬酸的方法
    • US07411090B2
    • 2008-08-12
    • US10548171
    • 2004-03-03
    • Avraham BanielAsher VitnerDavid GonenDavid Heidel
    • Avraham BanielAsher VitnerDavid GonenDavid Heidel
    • C07C51/42C07C55/00
    • C07C51/43C07C51/48C07C59/265
    • The invention provides a process for the recovery of citric acid from an aqueous solution feed stream originating in fermentation of carbohydrates and utilizing an amine solvent extraction step for separation of impurities comprising: subjecting said aqueous solution feed stream A to a treatment for partial recovery of citric acid, wherein said treatment is other than amine solvent extraction, to form a first portion of purified citric acid B and a secondary feed stream F; subjecting at least a portion G of said secondary feed stream F to a treatment consisting of amine solvent extraction to form a second portion of purified citric acid solution and to reject substantial of impurities initially present in said portion of said secondary feed stream; subjecting said second portion of purified citric acid solution to crystallization; and recycling mother liquor from said crystallization.
    • 本发明提供了一种从源于碳水化合物发酵的水溶液进料流中回收柠檬酸的方法,并利用胺溶剂萃取步骤分离杂质,其包括:使所述水溶液进料流A处理部分回收柠檬酸 酸,其中所述处理不是胺溶剂萃取,以形成纯化柠檬酸B的第一部分和第二进料流F; 使至少一部分G的所述二次进料流F经受由胺溶剂萃取组成的处理以形成第二部分纯化的柠檬酸溶液并且排除最初存在于所述第二进料流的所述部分中的大量杂质; 对所述第二部分纯化柠檬酸溶液进行结晶; 并从所述结晶中回收母液。
    • 28. 发明申请
    • METHOD FOR PREPARING A HYDROLYZATE
    • 制备水解产物的方法
    • US20130028833A1
    • 2013-01-31
    • US13577215
    • 2011-02-06
    • Aharon EyalAsher VitnerRevital Mali
    • Aharon EyalAsher VitnerRevital Mali
    • C01B7/01C09K3/00
    • C01B7/0737
    • The present invention provides an organic phase composition comprising (f) a first solvent (S1) characterized by water solubility of less than 10% and by at least one of (a1) having a polarity related component of Hoy's cohesion parameter (delta-P) between 5 and 10 mPa1/2 and (b1) having a Hydrogen bonding related component of Hoy's cohesion parameter (delta-H) between 5 and 20 MPa1/2; (g) a second solvent (S2) characterized by water solubility of at least 30% and by at least one of (a2) having a delta-P greater than 8 MPa1/2 and (b2) having a delta-H greater than 12 MPa1/2; (h) water (i) HCl, and (j) a chloride salt.
    • 本发明提供一种有机相组合物,其包含(f)第一溶剂(S1),其特征在于水溶解度小于10%,和至少一种(a1)具有Hoy的内聚参数(Δ-P)的极性相关成分, 5和10mPa1 / 2之间,(b1)具有5至20MPa1 / 2的Hoy粘附参数(δ-H)的氢键相关组分; (g)第二溶剂(S2),其特征在于水溶解度为至少30%,并且至少一种具有δ-P大于8MPa1 / 2的(a2)和(b2)具有大于12的Δ-H MPa1 / 2; (h)水(i)HCl,和(j)氯化物盐。