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    • 6. 发明授权
    • Process for the preparation of aluminum oxide carboxylate polymers
containing at most two percent by weight of ester
    • 制备含二氧化铈羧酸酯聚合物的方法,以二酯重量百分比计
    • US5075473A
    • 1991-12-24
    • US521048
    • 1990-05-03
    • Istvan KantorFerenc DenesJanos KisJanos AuerLajos PeterfyL. Peter Farkas.ANG.ntal MatravolgyiJozsef HorvathJozsef Toth
    • Istvan KantorFerenc DenesJanos KisJanos AuerLajos PeterfyL. Peter Farkas.ANG.ntal MatravolgyiJozsef HorvathJozsef Toth
    • C07C29/00C07C31/00C08G59/62C08G79/10C09K3/00C10M119/30
    • C10M119/30C08G79/10C09K3/00C10M2227/09
    • The invention relates to a novel process for the preparation of aluminum oxide carboxylate polymers containing at most 2% by weight of ester by reacting an aluminum alkoxide of the general formula Al(OR).sub.3, wherein R stands for a C.sub.2-5 alkyl group, dissolved in an aromatic or aliphatic hydrocarbon with a solution of a C.sub.8-22 aliphatic or alicyclic monocarboxylic acid or carboxylic acid mixture and water in a C.sub.2-5 alkanol and removing the alkanol(s).The process according to the invention comprises introducing the solution of the aluminum alkoxide to a tube reactor having a 10 to 200 length/diameter ratio at a temperature exceeding by 15.degree.to 50.degree.C. the boiling point of the higher boiling alkanol among that corresponding to the alkanol component of aluminum alkoxide and that used as solvent; then feeding in the alkanolic solution containing the monocarboxylic acid and water, wherein the aluminum/monocarboxylic acid mole ratio is at least 10:1 and the aluminum/water mole ratio is at least 10:1; removing the alkanol formed in the reaction; returning the reaction mixture into the tube reactor; repeating this operation until the mono-carboxylic acid/aluminum mole ratio reaches 0.95 to 1.05 and the water/aluminum mole ratio reaches 0.9 to 1.0; and then making the product obtained free from alkanol.
    • 本发明涉及通过使通式为Al(OR)3的烷氧基铝反应其中R代表C 2-5烷基的方法制备含有至多2重量%酯的氧化铝羧酸盐聚合物的新方法, 用C8-22脂族或脂环族单羧酸或羧酸混合物和水溶解在C 2-5链烷醇中并除去链烷醇的芳族或脂族烃中。 根据本发明的方法包括在超过15℃至50℃的温度下将烷醇铝溶液引入具有10至200个长度/直径比的管式反应器中,其中相应的沸点高的烷醇的沸点 用作醇溶剂的烷醇成分; 然后进料含有一元羧酸和水的链烷醇溶液,其中铝/一元羧酸摩尔比为至少10:1,铝/水摩尔比为至少10:1; 除去反应中形成的链烷醇; 将反应混合物返回到管式反应器中; 重复该操作直到单羧酸/铝摩尔比达到0.95至1.05,水/铝摩尔比达到0.9至1.0; 然后使得到的产物不含链烷醇。