Method and fluidized bed granulator for the production of granules from a slurry

    公开(公告)号:US12233394B2

    公开(公告)日:2025-02-25

    申请号:US17271317

    申请日:2019-10-18

    Inventor: Howard Volke

    Abstract: A method for granulating a slurry in a fluidized bed granulator having a main longitudinal direction from a seed end where granulation is initiated, to a product discharge end where granules are discharged from the fluidized bed granulator, including at least one fluidized bed compartment, an injection section and a granulation section, separated by a bottom plate including one or more injection nozzles, wherein a feed slurry is provided to the injection section, wherein a first fraction of the feed slurry provided to the injection section is injected into the granulation section through the one or more injection nozzles and a second fraction of the feed slurry, being the remainder of the feed slurry, is passed through the injection section without being injected into the granulation section. A fluidized bed granulator for the granulation of slurries for fertilizer products such as UAS according to the method of the invention.

    USE OF A LIQUID COMPOSITION FOR COATING PARTICLES

    公开(公告)号:US20220055958A1

    公开(公告)日:2022-02-24

    申请号:US17414574

    申请日:2019-12-18

    Applicant: Arkema France

    Abstract: The present invention relates to the use of a liquid formulation for coating granular materials, said formulation comprising at least one oil a renewable origin and at least one anionic surfactant comprising at least one functional group having one or more heteroatom(s), the electronegativity of which is strictly less than 2.5. The present invention further relates to the granular material coated with said liquid formulation.

    Fertilizer particle
    7.
    发明授权

    公开(公告)号:US11034626B2

    公开(公告)日:2021-06-15

    申请号:US16462643

    申请日:2017-11-30

    Abstract: The present disclosure provides robust fertilizer particles suitable for fertigation. A composition comprising mineral oil, primary alkylamines and water-insoluble particles may coat fertilizer particles and make them suitable for fertigation. Furthermore, the coated particles display reduced dusting tendency. The coating composition may be applied as a thin, single, continuous layer covering the particle core. The coating may avoid surface film problems when the particles are dissolved in water, even if the very hydrophobic mineral oil is less dense than water. It may be counterintuitive to include water-insoluble particles in a fertilizer particle for fertigation, however the claimed particles may be dissolved to make a fertigation solution that avoid problems in tanks, nozzles and piping of the fertigation systems.

    PEDOSPHERE-IMPROVING GRANULATE, METHOD FOR PRODUCING SAME, AND USE THEREOF

    公开(公告)号:US20210122684A1

    公开(公告)日:2021-04-29

    申请号:US16965371

    申请日:2018-11-30

    Abstract: A method for producing a pedosphere-improving granulate (6) and granulate itself, the method includes a) producing a raw material dispersion including at least one inorganic secondary phosphate (1) and at least one reaction agent (2) in a liquid phase (4), b) separating part of the liquid phase (4) from the raw material dispersion, c) granulating and/or extruding the remaining raw material dispersion with a reduced liquid phase (4), d) either returning the liquid phase (4) separated in process step b) to process step a) in order to produce a raw material dispersion without at least partly separating (5) heavy metals or at least partly separating heavy metals (7) from the liquid phase (4) separated in process step b) and discharging the heavy metals (7) out of the process and subsequently returning the separated heavy metal reduced liquid phase (4) in order to produce a raw material dispersion in a manner analogous to process step a) and/or returning the liquid phase to process step c), and e) repeating process steps a) to d).

    FERTILIZER PARTICLE
    10.
    发明申请
    FERTILIZER PARTICLE 审中-公开

    公开(公告)号:US20190276375A1

    公开(公告)日:2019-09-12

    申请号:US16462643

    申请日:2017-11-30

    Abstract: The present disclosure provides robust fertilizer particles suitable for fertigation. A composition comprising mineral oil, primary alkylamines and water-insoluble particles may coat fertilizer particles and make them suitable for fertigation. Furthermore, the coated particles display reduced dusting tendency. The coating composition may be applied as a thin, single, continuous layer covering the particle core. The coating may avoid surface film problems when the particles are dissolved in water, even if the very hydrophobic mineral oil is less dense than water. It may be counterintuitive to include water-insoluble particles in a fertilizer particle for fertigation, however the claimed particles may be dissolved to make a fertigation solution that avoid problems in tanks, nozzles and piping of the fertigation systems.

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