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1. 发明申请

WO1997006910A1 ALKALI METAL DISPERSIONS 审中-公开
标题翻译：阿尔卡利金属分散剂
公开(公告)号：WO1997006910A1
公开(公告)日：1997-02-27
申请号：PCT/US1996013137
申请日：1996-08-13
申请人： FMC CORPORATION
发明人： FMC CORPORATION , DOVER, B., Troy , KAMIENSKI, Conrad, W. , MORRISON, Robert, C. , CURRIN, R., Thomas, Jr. , SCHWINDEMAN, James, A.
IPC分类号： B22F01/00
CPC分类号： C01D15/00 , B22F1/0088 , B22F9/06 , C01D13/00
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 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 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。

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