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    • 16. 发明授权
    • Method of processing food paraffins and uses of obtained products
    • 加工食品链烷烃的方法及其用途
    • US4042411A
    • 1977-08-16
    • US570424
    • 1975-04-22
    • Ljudmila Petrovna KazakovaAlexei Alexandrovich GundyrevNina Yakovlevna RudakovaFridrikh-Leopold Khaskelevich SharfYaroslav Evstavievich GarunLidia Ivanovna BelyashinaZoya Vasilievna Kocheva
    • Ljudmila Petrovna KazakovaAlexei Alexandrovich GundyrevNina Yakovlevna RudakovaFridrikh-Leopold Khaskelevich SharfYaroslav Evstavievich GarunLidia Ivanovna BelyashinaZoya Vasilievna Kocheva
    • A23C19/16C10G73/38C08L91/08
    • C10G73/38A23C19/163
    • Food paraffins are processed into a mixture of paraffins of normal structure, iso-structure, and naphthenes with side chains of normal and iso-structure, containing from 20 to 32 carbon atoms, and high-melting paraffins of normal structure, by processing the food paraffin at a temperature of 42.degree.-45.degree. C with carbamide taken in the weight ratio of 1:1, in the presence of a solvent consisting of 60 per cent by volume of benzine and 40 per cent by volume of acetone taken in the paraffin:solvent ratio of 1:3-3.5. The resultant reaction mixture consists of a crystalline mass containing high-melting paraffins of normal structure in the form of their complex with carbamide and a solution of a mixture of paraffins of normal structure, iso-structure, and naphthenes with side chains of normal and iso-structure having from 20 to 32 carbon atoms, in said solvent. The crystalline mass and the solution are separated. The solution of the mixture is washed with water at a temperature of 80.degree.-90.degree. C and then water and the solvent are removed by distillation to isolate said mixture. The crystalline mass is treated with water at a temperature of 80.degree.-90.degree. C to prepare an aqueous solution of carbamide and a solution of high-melting paraffins of normal structure in said solvent. These solutions are separated and the solvent is distilled from the solution of high-melting paraffins of normal structure.The mixture of paraffins of normal structure, iso-structure, and naphthenes with side chains of normal and iso-structure, containing from 20 to 32 carbon atoms, obtained by this method, is used as an additive to protective coatings for tin containers intended for canning.
    • 通过加工食品将食品链烷烃加工成具有正常结构,异构结构和环烷烃的链烷烃的混合物,其具有含有20至32个碳原子的正构和异构结构的侧链和正常结构的高熔点链烷烃 石蜡在42°-45℃的温度下,以重量比为1:1的氨基甲酸酯,在由60%体积比的汽油和40%体积的丙酮中加入的溶剂存在于石蜡中 :溶剂比为1:3-3.5。 所得反应混合物由含有正构结构的高熔点链烷烃与其与络合物形式的结晶物质组成,并且具有正构结构,异构结构和环烷烃的链烷烃的混合物与正常和异构体侧链的溶液 在所述溶剂中具有20至32个碳原子的结构。 分离出结晶质量和溶液。 混合物的溶液在80-90℃的温度下用水洗涤,然后通过蒸馏除去水和溶剂以分离所述混合物。 在80〜90℃的温度下用水处理结晶物质,以制备在所述溶剂中具有正常结构的脲的水溶液和高熔点链烷烃溶液。 将这些溶液分离并从正常结构的高熔点石蜡溶液中蒸馏出溶剂。