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    • 3. 发明授权
    • Potassium sorbate granulate and production processes thereof
    • 山梨酸钾颗粒及其制备方法
    • US06512142B1
    • 2003-01-28
    • US09572499
    • 2000-05-18
    • Mitsuhiro KounoMasayuki OkadaKazuyuki MatsuokaNoboru Kamei
    • Mitsuhiro KounoMasayuki OkadaKazuyuki MatsuokaNoboru Kamei
    • C07C5710
    • C07C51/43C07C57/10
    • A granulated product of potassium sorbate (i) has an overall pore volume of 0.3 ml/g or less, (ii) has an Na content of 450 ppm or less, or (iii) has an overall pore volume of 0.4 ml/g or less, or a granule hardness of 15% or less, and an Na content of 1000 ppm or less. The granulated product is obtained, for example, (i) by granulating a potassium sorbate aqueous solution through fluidized bed granulation drying, (ii) by neutralizing sorbic acid with a potassium sorbate having a molar ratio of Na to K (Na/K) of 0.0024 or less to yield potassium sorbate, and granulating the potassium sorbate, or (iii) by neutralizing sorbic acid with a potassium sorbate having a molar ratio of Na to K (Na/K) of 0.006 or less to yield potassium sorbate, and moisture-conditioning 100 parts by weight of the potassium sorbate with 1 to 8.5 parts by weight of water and 1 to 8 parts by weight of a water-soluble organic solvent and subjecting the resulting mixture to extrusion granulation. The granulated product of potassium sorbate has a highly stable hue over time.
    • 山梨酸钾(i)的造粒产物的总孔体积为0.3ml / g以下,(ii)Na含量为450ppm以下,或(iii)总孔体积为0.4ml / g,或 或者颗粒硬度为15%以下,Na含量为1000ppm以下。 得到造粒物,例如,(i)通过流化床造粒干燥将山梨酸钾水溶液制粒,(ii)通过用山梨酸钾与Na摩尔比K(Na / K)的山梨酸钾中和山梨酸 0.0024以下,得到山梨酸钾,并使山梨酸钾成粒,或者(iii)通过用摩尔比为Na〜K(Na / K)为0.006以下的山梨酸钾中和山梨酸,得到山梨酸钾, 用1〜8.5重量份的水和1〜8重量份的水溶性有机溶剂调节100重量份的山梨酸钾,并将所得混合物进行挤出造粒。 山梨酸钾的粒状产品随着时间的推移具有高度稳定的色调。