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    • 2. 发明授权
    • Methods for production of titanium oxide particles, and particles and preparations produced thereby
    • 生产氧化钛颗粒的方法,以及由此制备的颗粒和制剂
    • US07763232B2
    • 2010-07-27
    • US12096143
    • 2006-12-21
    • Asher VitnerAharon Eyal
    • Asher VitnerAharon Eyal
    • C01G23/047C01G23/053C01G23/04
    • C01G23/053B82Y30/00C01G23/0532C01G23/0536C01G23/08C01P2004/62C01P2004/64C01P2006/12
    • The invention provides a method for the formation of small-size titanium oxide particles, comprising the steps of a) preparing a starting aqueous solution comprising at least one of titanic ions and complexes thereof, at a concentration of at least 0.1% w/w titanium; b) maintaining the solution at a temperature lower than 70° C. for a retention time in which hydrolysis takes place, the extent of the hydrolysis being sufficient to produce O.i mmol protons per mmol of titanium present in solution, wherein the time does not exceed 14 days, to form a system containing a retained solution; and c) adjusting the conditions in the system by at least one of the steps of: i) heating the retained solution to elevate the temperature thereof by at least 1° C.; ii) changing the pH of the retained solution by at least 0.1 units; and iii) diluting the retained solution by at least 20% whereby there are formed particles, wherein the majority of the particles formed are between about 2 nm and about 500 nm in size.
    • 本发明提供一种形成小尺寸氧化钛颗粒的方法,包括以下步骤:a)制备含有至少0.1%w / w钛的钛离子及其配合物中的至少一种的起始水溶液 ; b)将溶液保持在低于70℃的温度下进行水解的停留时间,水解程度足以产生溶解在溶液中的每毫摩尔钛的O 1 mmol质子,其中时间不超过 14天,形成含有保留溶液的体系; 以及c)通过以下步骤中的至少一个步骤来调节所述系统中的条件:i)加热所述保留的溶液以将其温度升高至少1℃; ii)将保留溶液的pH值改变至少0.1单位; 和iii)将保留的溶液稀释至少20%,由此形成颗粒,其中形成的大部分颗粒的尺寸在约2nm和约500nm之间。
    • 6. 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。
    • 9. 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。