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    • 2. 发明申请
    • PRODUCTION OF SODIUM DIFORMATE
    • 生产SODIUM DIFORMATE
    • WO2007074164A1
    • 2007-07-05
    • PCT/EP2006/070246
    • 2006-12-28
    • BASF AKTIENGESELLSCHAFTHAUK, AlexanderGROPP, StefanLOHMANN, Anna ValeskaHEINZ, Robert
    • HAUK, AlexanderGROPP, StefanLOHMANN, Anna ValeskaHEINZ, Robert
    • C07C51/41C07C51/44C07C53/06A23K1/16A23K1/175A23K1/18
    • C07C51/412C07C51/44C07C53/06
    • The present invention relates to a process for producing a solid sodium diformate preparation having a formic acid content of at least 35% by weight based on the total weight of sodium diformate preparation, in which, at elevated temperature, an aqueous solution (E) is produced which comprises sodium formate and formic acid in a molar ratio of HCOOH:HCOONa of greater than 1.5:1 and which has a molar ratio of HCOOH:H 2 O of at least 1.1 :1 , the aqueous solution (E) is brought to crystallization to obtain a solid phase (F) and a mother liquor (G), and the solid phase (F) is separated off from the mother liquor (G), (i) the mother liquor (G) being fed to a distillation apparatus (DV); (ii) the mother liquor (G) in the distillation apparatus (DV) being admixed with a so- dium-comprising base (A) to obtain a mixture (B) comprising sodium formate and formic acid; (iii) admixing the mixture (B) obtained from step (ii) with formic acid (D) to obtain the aqueous solution (E); and (iv) excess water (C) essentially being ejected only by withdrawal from the distillation apparatus (DV); and also to the use of a solid sodium diformate preparation obtainable by the inventive process as feed additive for animal feed, in particular for monogastric animal feed and especially for animal feed for hogs and/or poultry.
    • 本发明涉及一种固体二甲酸钠制剂的制备方法,其具有基于二甲酸钠制剂的总重量至少35重量%的甲酸含量,其中在升高的温度下,水溶液(E)为 其生成的甲酸钠和甲酸的HCOOH:HCOONa的摩尔比大于1.5:1,HCOOH:H 2 O 2的摩尔比为至少1.1:1,水相 使溶液(E)结晶,得到固相(F)和母液(G),从母液(G)中分离固相(F),(i)母液 )进料到蒸馏装置(DV)中; (ⅱ)蒸馏装置(DV)中的母液(G)与含有ium的碱(A)混合,得到包含甲酸钠和甲酸的混合物(B); (iii)将由步骤(ii)获得的混合物(B)与甲酸(D)混合,得到水溶液(E); 和(iv)过量的水(C)基本上仅通过从蒸馏装置(DV)中取出而排出; 并且还涉及使用本发明方法可获得的固体二甲酸钠制剂作为用于动物饲料的饲料添加剂,特别是单胃动物饲料,特别是用于猪和/或家禽的动物饲料。