Organoalkali compounds and their preparation
    4.
    发明授权
    Organoalkali compounds and their preparation 失效
    有机碱化合物及其制备方法

    公开(公告)号:US5976403A

    公开(公告)日:1999-11-02

    申请号:US65782

    申请日:1998-04-23

    摘要: A process for producing dispersions of atmospherically stable, coated alkali metal particles and atmospherically stable, coated alkali metal powders by agitating a mixture of molten alkali metal in a hydrocarbon oil at dispersion speeds, optionally in the presence of a dispersing agent, contacting the molten alkali metal-hydrocarbon oil dispersion, above or below the surface of the dispersion, with up to 3 weight percent anhydrous carbon dioxide while agitating the dispersion for at least 1 minute. The dispersion in oil can be used directly in chemical reactions. The bulk of the oil can be removed from the dispersions to produce oil wet particles, the oil wet particles car be washed with a low boiling hydrocarbon to produce hydrocarbon wet particles which can be dried to produce atmospherically stable powders of coated metal particles. The dispersed particles in oil, the oil wet particles, the hydrocarbon wet particles and the atmospherically stable powders can each be used in chemical reactions. After washing and drying, the process produces lithium powders having a surface coating composition containing 0.1-0.3 atom percent lithium, 0.3-0.4 atom percent carbon, and 0.3-0.5 atom percent oxygen. The products of the invention may be used to synthesize organometallic compounds, esp. n-butyl lithium and sec-butyl lithium, having low color and low soluble inorganic chloride levels.

    摘要翻译: 通过搅拌熔融碱金属在烃油中的分散速度的混合物,任选地在分散剂存在下,使熔融碱接触,制备大气稳定的涂覆的碱金属颗粒和大气稳定的包覆的碱金属粉末的分散体的方法 在分散体表面上方或下方的金属 - 烃油分散体与最多3重量%的无水二氧化碳同时搅拌分散体至少1分钟。 油中的分散体可以直接用于化学反应。 大部分油可以从分散体中除去以产生油湿颗粒,用低沸点烃洗涤油湿颗粒汽车以产生烃湿颗粒,其可以被干燥以产生大气稳定的涂覆金属颗粒的粉末。 油中的分散颗粒,油湿颗粒,烃湿颗粒和气氛稳定的粉末均可用于化学反应。 洗涤和干燥后,该方法产生具有表面涂层组合物的锂粉末,其中含有0.1-0.3%原子百分比的锂,0.3-0.4%的碳和0.3-0.5%的氧。 本发明的产品可用于合成有机金属化合物, 正丁基锂和仲丁基锂,颜色低,可溶性无机氯化物水平低。

    Alkali metal dispersions
    5.
    发明授权
    Alkali metal dispersions 失效
    碱金属分散体

    公开(公告)号:US5776369A

    公开(公告)日:1998-07-07

    申请号:US639250

    申请日:1996-04-22

    摘要: A process for producing dispersions of atmospherically stable, coated alkali metal particles and atmospherically stable, coated alkali metal powders by agitating a mixture of molten alkali metal in a hydrocarbon oil at dispersion speeds, optionally in the presence of a dispersing agent, contacting the molten alkali metal-hydrocarbon oil dispersion, above or below the surface of the dispersion, with up to 3 weight percent anhydrous carbon dioxide while agitating the dispersion for at least 1 minute. The dispersion in oil can be used directly in chemical reactions. The bulk of the oil can be removed from the dispersions to produce oil wet particles, the oil wet particles can be washed with a low boiling hydrocarbon to produce hydrocarbon wet particles which can be dried to produce atmospherically stable powders of coated metal particle The dispersed particles in oil, the oil wet particles, the hydrocarbon wet particles and the atmospherically stable powders can each be used in chemical reactions. After washing and drying, the process produces lithium powders having a surface coating composition containing 0.1-0.3 atom percent lithium, 0.3-0.4 atom percent carbon, and 0.3-0.5 atom percent oxygen. The products of the invention may be used to synthesize organometallic compounds having low color and low soluble inorganic chloride levels.

    摘要翻译: 通过搅拌熔融碱金属在烃油中的分散速度的混合物,任选地在分散剂存在下,使熔融碱接触,制备大气稳定的涂覆的碱金属颗粒和大气稳定的包覆的碱金属粉末的分散体的方法 在分散体表面上方或下方的金属 - 烃油分散体与最多3重量%的无水二氧化碳同时搅拌分散体至少1分钟。 油中的分散体可以直接用于化学反应。 大部分油可以从分散体中除去以产生油湿颗粒,油湿颗粒可以用低沸点烃洗涤以产生烃湿颗粒,其可以被干燥以产生包覆的金属颗粒的大气稳定的粉末分散的颗粒 在油中,油湿颗粒,烃湿颗粒和气氛稳定的粉末均可用于化学反应。 洗涤和干燥后,该方法产生具有表面涂层组合物的锂粉末,其中含有0.1-0.3%原子百分比的锂,0.3-0.4%的碳和0.3-0.5%的氧。 本发明的产品可用于合成具有低颜色和低可溶性无机氯化物含量的有机金属化合物。

    Functionalized amine initiators for anionic polymerization
    6.
    发明授权
    Functionalized amine initiators for anionic polymerization 失效
    用于阴离子聚合的官能化胺引发剂

    公开(公告)号:US5523364A

    公开(公告)日:1996-06-04

    申请号:US458198

    申请日:1995-06-02

    CPC分类号: C08F12/04 C08F36/04

    摘要: A process for the preparation of hydrocarbon solutions of monofunctional amine initiators of the following general structures: ##STR1## wherein M is defined as an alkali metal, selected from the group consisting of lithium, sodium and potassium, Q is a saturated or unsaturated hydrocarbyl group derived by incorporation of a compound selected from the group consisting of conjugated diene hydrocarbons and alkenyl substituted aromatic hydrocarbons; Z is a hydrocarbon tether group which contains 3-25 carbon atoms; A is an element selected from Group IVa of the periodic table and R.sup.1, R.sup.2, and R.sup.3 are independently selected from hydrogen, alkyl, substituted alkyl, cycloalkyl, aryl or substituted aryl groups, m is an integer from 0 to 7, and n is an integer from 1 to 5, monofunctional amine initiators produced by the process, use of the initiators in a polymerization process and polymers produced by the polymerization process.

    摘要翻译: 制备以下一般结构的单官能胺引发剂的烃溶液的方法:其中M定义为碱金属,其选自锂,钠和钾,Q是饱和或 通过引入选自共轭二烯烃和烯基取代的芳族烃的化合物衍生的不饱和烃基; Z是含有3-25个碳原子的烃系链基团; A是选自元素周期表IVa的元素,R1,R2和R3独立地选自氢,烷基,取代的烷基,环烷基,芳基或取代的芳基,m是0-7的整数,n是 1至5的整数,通过该方法制备的单官能胺引发剂,在聚合方法中使用引发剂和通过聚合方法制备的聚合物。

    Preparation of lithium alkoxides
    9.
    发明授权
    Preparation of lithium alkoxides 失效
    锂盐的制备

    公开(公告)号:US5276219A

    公开(公告)日:1994-01-04

    申请号:US973116

    申请日:1992-11-06

    IPC分类号: C07C29/70 C07C31/30 C07F1/02

    CPC分类号: C07C29/70

    摘要: A process for producing clear, colorless solutions of branched lithium alkoxides containing 3 to 12 carbon atoms, in a polar reaction solvent, comprising reacting a dispersion of lithium metal having a particle size less than 300 microns with a minimum of 5 mole percent excess over stoichiometric of a branched alkyl alcohol containing 4 to 12 carbon atoms, in a polar reaction solvent as the reaction medium, at a temperature between 50.degree. C. and the boiling point of the solvent in an inert atmosphere.

    摘要翻译: 一种在极性反应溶剂中生产含有3至12个碳原子的支链烷氧基化物的透明无色溶液的方法,包括将粒度小于300微米的锂金属分散体与超过化学计量比的至少5摩尔%过量反应 的在极性反应溶剂中作为反应介质的含有4至12个碳原子的支链烷基醇在惰性气氛中在50摄氏度和溶剂的沸点之间。

    Hydrocarbon-soluble organometallic complexes of magnesium and alkali
metals and method of producing same
    10.
    发明授权
    Hydrocarbon-soluble organometallic complexes of magnesium and alkali metals and method of producing same 失效
    镁和碱金属的烃溶性有机金属配合物及其制备方法

    公开(公告)号:US4678614A

    公开(公告)日:1987-07-07

    申请号:US803104

    申请日:1985-11-27

    IPC分类号: C07F3/02

    CPC分类号: C07F3/02

    摘要: Stable alkali metal trialkylmagnesiate compositions are produced in high yields by simultaneously adding to a stirred dispersion of an alkali metal in an inert liquid hydrocarbon solvent a soluble dialkylmagnesium compound and an alkyl halide. By using a 2-alkyl substituted C.sub.4 -C.sub.18 primary alkyl chloride as the alkyl halide, alkali metal trialkylmagnesiates are produced which have excellent solubility, even at low temperatures, and good thermal stability over a wide range of temperatures. Moreover, the trialkylmagnesiates are soluble in liquid aliphatic or cycloaliphatic solvents in the absence of aromatic solvents or Lewis bases, which makes these compositions especially useful for certain applications, such as catalysts in anionic polymerization, where the presence of aromatic solvents or Lewis bases is undesirable.

    摘要翻译: 通过在惰性液体烃溶剂中可溶性二烷基镁化合物和烷基卤化物的同时加入碱金属的搅拌分散体,以高产率制备稳定的碱金属三烷基镁化合物。 通过使用2-烷基取代的C 4 -C 18伯烷基氯作为烷基卤化物,制得碱金属三烷基镁酸盐,即使在低温下也具有优异的溶解性,并且在宽的温度范围内具有良好的热稳定性。 此外,三烷基镁酸酯在不存在芳族溶剂或路易斯碱的情况下可溶于液体脂族或脂环族溶剂,这使得这些组合物特别适用于某些应用,例如阴离子聚合中的催化剂,其中芳族溶剂或路易斯碱的存在是不期望的 。