Fast dissolving water-soluble fertilizer formulations and methods and uses thereof
    1.
    发明授权
    Fast dissolving water-soluble fertilizer formulations and methods and uses thereof 有权
    快速溶解水溶性肥料配方及其方法和用途

    公开(公告)号:US08419820B2

    公开(公告)日:2013-04-16

    申请号:US12361188

    申请日:2009-01-28

    摘要: Improved, solid water-soluble fertilizer (WSF) compositions are presented which comprise at least one acid (optionally nutritive) and at least one basic fertilizer component. In one or more embodiments of the present invention, the WSF compositions demonstrate improved solubility of one or more nutrients or additives in solution, do not require additional dissolution aids or anti-caking agents, demonstrate fast dissolution times, produce precipitate free solutions, are readily compounded without intermediate wetting or drying steps, do not generate gas, and demonstrate improved stability under typical usage conditions. Finally, the WSF compositions may be used in improved processes for the creation of stock solutions, optionally with cold water, and/or delivery of nutrients to plants.

    摘要翻译: 提出了包含至少一种酸(任选营养)和至少一种碱性肥料组分的改进的固体水溶性肥料(WSF)组合物。 在本发明的一个或多个实施方案中,WSF组合物表现出一种或多种营养物或添加剂在溶液中的溶解度的改善,不需要额外的溶解助剂或抗结块剂,证明快速溶解时间,产生无沉淀的溶液,容易 在没有中间润湿或干燥步骤的情况下混合,不产生气体,并且在典型使用条件下证明改进的稳定性。 最后,WSF组合物可以用于改进的方法,用于产生储备溶液,任选地用冷水和/或向植物输送营养物质。

    Water soluble fertilizer compositions
    2.
    发明授权
    Water soluble fertilizer compositions 有权
    水溶性肥料成分

    公开(公告)号:US06312493B1

    公开(公告)日:2001-11-06

    申请号:US09414214

    申请日:1999-10-07

    IPC分类号: C05B700

    摘要: The present invention relates to a solid water soluble fertilizer composition containing one or more fertilizer materials and a phosphate free, organic acid which is solid at ambient temperatures. The fertilizer materials include primary macro nutrients, secondary macro nutrients, micro nutrients and mixtures thereof. The organic acid has a water solubility of at least 10 g/l (at 25° C.) and an acidifying effect in the range of 0.5 to 1.3 g HCO3−/g acid. The acidifying effect is defined as the amount of HCO3− that can be transformed into H2CO3 per gram of acid and is calculated in accordance with the following formula: 61 ⁢ n M w , acid wherein Mw,acid is the molecular weight of said acid and n represents the number of dissociation constants (i.e., pKa values) of the acid below the value of 6.35. The acid should be present in the composition in an amount sufficient to reduce the HCO3− level in water treated with the composition by between about 60-400 parts per million when applied to the water at a dosage of 1 gram per liter.

    摘要翻译: 本发明涉及含有一种或多种肥料和不含磷酸盐的有机酸的固体水溶性肥料组合物,其在环境温度下是固体。 肥料材料包括主要的宏观营养物质,次要的宏观营养物质,微量养分及其混合物。 有机酸的水溶解度至少为10g / l(25℃),酸化效果为0.5〜1.3g HCO3- / g酸。 酸化效果定义为每克酸可以转化为H 2 CO 3的HCO 3的量,并且根据下式计算:其中Mw是所述酸的分子量,n表示解离常数 (即pKa值)低于6.35的值。 当以1克/升的剂量施用于水时,酸应以组合物中存在的量足以将用组合物处理的水中的HCO 3水平降低约60-400ppm /百万分率。

    Controlled release products and processes for the preparation thereof
    6.
    发明授权
    Controlled release products and processes for the preparation thereof 有权
    控制释放产品及其制备方法

    公开(公告)号:US06656882B2

    公开(公告)日:2003-12-02

    申请号:US09795840

    申请日:2001-02-28

    IPC分类号: C05G302

    摘要: A controlled release product is provided having a suppressed initial release period and a predetermined longevity. The product includes a particulate water soluble core material and a semi-permeable coating layer applied on the core material for controlling the release rate of the core material. The semi-permeable coating layer is formulated in accordance with the following equation to provide a release rate wherein initial release of core material from the product is suppressed so that less than about 15 weight percent of core material is released from the product within a 24 hour period after application of the product and wherein longevity of release, at ambient temperature, between the time of application and the time at which at least about 75 weight percent of the core material is released from the product is 60 days or less: WVTR = φ · δ π ⁢   ⁢ d 2 wherein: (i) WVTR is the water vapor transmission rate of the semi-permeable coating expressed in grams·&mgr;m/meters2·day; (ii) &phgr; is the water diffusion rate (water flux) through the semi-permeable coating expressed in grams/day; (iii) &dgr; is the thickness of the coating layer expressed in &mgr;m; and (iv) d is the average diameter of the particulate core material expressed in meters.

    摘要翻译: 提供具有抑制的初始释放期和预定寿命的控释产品。 该产品包括颗粒状水溶性芯材和应用于芯材上的半渗透涂层,用于控制芯材的释放速率。 根据以下等式配制半透性涂层以提供释放速率,其中芯材料从产品中的初始释放被抑制,使得在24小时内从产品中小于约15重量%的芯材料被释放 施用产品之后的时间段,其中在环境温度下,在施用时间和从产物中释放核心材料的至少约75重量%的时间之间的释放寿命为60天以下:其中:( i)WVTR是半渗透膜的水蒸汽透过率,以克/米2日为单位表示;(ii)phi是通过半渗透性涂层的水扩散速率(水通量),以克表示 /天;(iii)三角洲是以妈妈表示的涂层的厚度; 和(iv)d是表示为米的颗粒状芯材的平均直径。