Coated Granular Material and Method for Producing Coated Granular Material
    5.
    发明申请
    Coated Granular Material and Method for Producing Coated Granular Material 审中-公开
    涂层颗粒材料和生产涂层颗粒材料的方法

    公开(公告)号:US20130039965A1

    公开(公告)日:2013-02-14

    申请号:US13576316

    申请日:2011-03-04

    CPC分类号: C05G3/0029 A01N25/26

    摘要: A coated granular material of the present invention includes: a water-soluble granular substance; a coating layer applied to at least a surface of the water-soluble granular substance and containing a thermosetting resin A formed from a resin liquid having a molar ratio A of isocyanate groups to hydroxyl groups of 0.5 to 0.99; and a protection layer applied to the coating layer and containing a thermosetting resin B formed from a resin liquid having a molar ratio B of isocyanate groups to hydroxyl groups of 0.75 to 2.0, wherein the molar ratio B of the protection layer is greater than the molar ratio A of the coating layer. The present coated granular material is capable of achieving both of a short-term release pattern and an initial release limiting function and maintaining good quality.

    摘要翻译: 本发明的涂覆颗粒材料包括:水溶性颗粒状物质; 涂覆层至少涂覆在水溶性颗粒状物质的表面上并含有由异氰酸酯基的摩尔比A与羟基的树脂液体形成的热固性树脂A为0.5〜0.99; 以及保护层,其涂布在涂层上并含有由异氰酸酯基的摩尔比B与羟基的摩尔比为0.75〜2.0构成的热固性树脂B,其中保护层的摩尔比B大于摩尔比 涂层的比A。 本发明的涂覆颗粒材料能够实现短期释放模式和初始释放限制功能,并且保持良好的质量。

    Sewage sludge recycling with a pipe cross-reactor
    6.
    发明申请
    Sewage sludge recycling with a pipe cross-reactor 有权
    用管道交叉反应器进行污水回用污泥

    公开(公告)号:US20050279146A1

    公开(公告)日:2005-12-22

    申请号:US10884856

    申请日:2004-07-06

    申请人: Gary Greer Gary Dahms

    发明人: Gary Greer Gary Dahms

    摘要: An improved process for enhancing the plant nutrient value of relatively low analysis organic waste material (e.g., sewage sludge) involves treating the waste material with an acid and base in a pipe-cross reactor. The process more particularly involves mixing the waste material with water to form a slurry (or initially taking the waste material as a slurry); pumping the slurry to a pipe-cross reactor for reaction with a base, acid, and water to form a melt; spraying the melt onto a recycling bed of fines in a granulator, and flashing off the water contained in the melt as steam; rolling the melt onto recycled fine particles in a granulator to form granulated particles; and drying these granulated particles to form an enhanced plant nutrient value composition (e.g., a fertilizer or soil conditioner having a greater “NPK” value than the original relatively low analysis organic waste material). The invention also includes fertilizers produced according to the improved process, which fertilizers are of the same size and shape and density of commonly used fertilizers. The method advantageously utilizes the heat generated by the exothermic acid-base reaction in the pipe-cross reactor to remove the approximately 80% water from sludge, thus saving large amounts of energy normally used in conventional drying or burning methods, while, at the same time, conserving the intrinsic values of the nutrients and humates contained in the sludge. In one embodiment, the process includes a method of disposing of spent acid from a hot dip galvanizing process or a steel pickling process involving incorporating the spent acid to maintain the low pH of a venturi scrubber used in the improved process.

    摘要翻译: 用于提高相对低分析的有机废物(例如,污水污泥)的植物营养价值的改进方法包括在管交叉反应器中用酸和碱处理废料。 该方法更具体地涉及将废料与水混合以形成浆料(或者最初以废料作为浆料); 将浆料泵送到管交叉反应器中以与碱,酸和水反应以形成熔体; 在造粒机中将熔体喷射到细粒的再循环床上,并将蒸汽中包含在熔体中的水闪烁; 在造粒机中将熔体滚动到再循环的细颗粒上以形成造粒颗粒; 并干燥这些造粒颗粒以形成增强的植物营养价值组合物(例如,具有比原始相对较低分析的有机废物材料更大的“NPK”值的肥料或土壤调理剂)。 本发明还包括根据改进方法生产的肥料,其中肥料具有与常用肥料相同的尺寸,形状和密度。 该方法有利地利用了在交叉反应器中由放热酸碱反应产生的热量从污泥中除去约80%的水,从而节省了常规干燥或燃烧方法中通常使用的大量能量,同时 时间,保持污泥中所含营养物和腐殖酸的内在价值。 在一个实施方案中,该方法包括从热浸镀锌工艺或钢酸洗工艺处理废酸的方法,包括掺入废酸以维持改进方法中使用的文丘里洗涤器的低pH。

    Magnesium thiosulfate solution and process for preparing same
    7.
    发明授权
    Magnesium thiosulfate solution and process for preparing same 有权
    硫代硫酸镁溶液及其制备方法

    公开(公告)号:US06921523B2

    公开(公告)日:2005-07-26

    申请号:US10682863

    申请日:2003-10-14

    摘要: An efficient process for the preparation of magnesium thiosulfate involves reaction of magnesium hydrosulfite and sulfur at elevated temperature. Magnesium hydrosulfite can be prepared from commercial magnesium oxide and sulfur. Sulfur dioxide can be used to maintain pH. The resulting product is an emulsion of liquid magnesium thiosulfate and solid byproducts. Under controlled conditions, including mole ratios of MgO to sulfur, temperature of the reaction process, and pH, as well as rate and duration of SO2 purging, production of byproducts can be reduced to less than about 2% by weight. The magnesium thiosulfate solution can be prepared with concentrations of at least about 25%, preferably at least about 30%.

    摘要翻译: 制备硫代硫酸镁的有效方法包括在升高的温度下连二亚硫酸镁和硫的反应。 连二亚硫酸镁可以由市售的氧化镁和硫制成。 二氧化硫可用于维持pH值。 所得产物是液体硫代硫酸镁和固体副产物的乳液。 在控制条件下,包括MgO与硫的摩尔比,反应过程的温度和pH,以及SO 2清洗的速率和持续时间,副产物的产生可以减少到小于约2 重量%。 硫代硫酸镁溶液可以以至少约25%,优选至少约30%的浓度制备。

    Agricultural items and agricultural methods comprising biodegradable copolymers
    8.
    发明授权
    Agricultural items and agricultural methods comprising biodegradable copolymers 失效
    包括可生物降解共聚物的农产品和农业方法

    公开(公告)号:US06903053B2

    公开(公告)日:2005-06-07

    申请号:US10309997

    申请日:2002-12-04

    IPC分类号: A01N25/10 C05G5/00

    摘要: An agricultural item comprising a biodegradable polyhydroxyalkanoate copolymer comprising two randomly repeating monomer units. The first randomly repeating monomer unit has the structure: wherein R1 is H or a C1-2 alkyl, and n is 1 or 2; and the second randomly repeating monomer unit has the structure: wherein R2 is a C3-19 alkyl or a C3-19 alkenyl. At least 50% of the randomly repeating monomer units have the structure of the first randomly repeating monomer unit.

    摘要翻译: 一种农业物品,其包含可生物降解的聚羟基链烷酸酯共聚物,其包含两个随机重复的单体单元。 第一个随机重复的单体单元具有以下结构:其中R 1是H或C 1-12烷基,n是1或2; 并且第二个随机重复的单体单元具有以下结构:其中R 2是C 3〜19 - 烷基或C 3〜19 - 烯基。 至少50%的随机重复单体单元具有第一个无规重复的单体单元的结构。

    Slow-release polyurethane(urea) encapsulated fertilizer
    10.
    发明申请
    Slow-release polyurethane(urea) encapsulated fertilizer 审中-公开
    缓释聚氨酯(尿素)包封肥料

    公开(公告)号:US20050066697A1

    公开(公告)日:2005-03-31

    申请号:US10675536

    申请日:2003-09-30

    IPC分类号: C05C9/00 C05G3/00 C05G5/00

    CPC分类号: C05G3/0029

    摘要: This invention relates to polyurethane(urea) encapsulated fertilizer particles which exhibit slow-release properties and to a process for their production. In one embodiment, the process comprises a) applying a polyisocyanate component to fertilizer particles to form isocyanate coated fertilizer particles, b) mixing an inert inorganic filler with said isocyanate coated fertilizer, c) adding an isocyanate-reactive component to the mixture of step b) and d) allowing the reactive components to react to form filler containing polyurethane(urea) encapsulated fertilizer particles containing from about 1 to about 15 percent by weight of filled polyurethane(urea), said percent by weight based on the total weight of the encapsulated fertilizer, with the proviso that the weight ratio of polyurethane(urea) to filler is from about 80:20 to about 30:70.

    摘要翻译: 本发明涉及具有缓释特性的聚氨酯(脲)包封肥料颗粒及其生产方法。 在一个实施方案中,该方法包括a)将多异氰酸酯组分施用于肥料颗粒以形成异氰酸酯涂覆的肥料颗粒,b)将惰性无机填料与所述异氰酸酯涂覆的肥料混合,c)将异氰酸酯反应性组分加入到步骤b的混合物中 )和d)允许反应性组分反应以形成含有约1至约15重量%的填充聚氨酯(尿素)的含聚氨酯(脲)包封肥料颗粒的填料,所述重量百分比基于包封的 肥料,条件是聚氨酯(脲)与填料的重量比为约80:20至约30:70。