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    PROCESS FOR RECOVERING PHOSPHORUS FROM PHOSPHORITIC MATERIALS
    2.
    发明申请
    PROCESS FOR RECOVERING PHOSPHORUS FROM PHOSPHORITIC MATERIALS 审中-公开

    公开(公告)号：WO2018145157A1

    公开(公告)日：2018-08-16

    申请号：PCT/AU2018/050094

    申请日：2018-02-08

    Applicant: COMMONWEALTH SCIENTIFIC AND INDUSTRIAL RESEARCH ORGANISATION

    Inventor： WRIGHT, Steven

    IPC: C01B25/01 ,  C01B25/18

    Abstract: A process for recovering phosphorus from phosphoritic materials in a top submerged lance furnace or a fuming furnace is disclosed. The process employs a mixture of combustion agents to produce reducing conditions in the slag bath and post- combustion oxidising conditions in the headspace of the furnace. The process involves smelting a mixture of a phosphoritic material and a carbonaceous material in the furnace to produce a molten slag in the slag bath and phosphorus vapour in the headspace, wherein the post-combustion oxidising conditions in the headspace favours retention of ferrous oxides in the molten slag to minimise deportment of phosphorus to a ferro-phosphorus alloy; The phosphorus vapour in the headspace is subsequently oxidised to produce phosphorus pentoxide, which is subsequently passed from the headspace to a reactor to recover a phosphoric acid solution.

    SYNTHETIC INORGANIC FLAME RETARDANTS, METHODS FOR THEIR PREPARATION, AND THEIR USE FLAME RETARDANTS
    5.
    发明申请
    SYNTHETIC INORGANIC FLAME RETARDANTS, METHODS FOR THEIR PREPARATION, AND THEIR USE FLAME RETARDANTS 审中-公开
    合成无机阻燃剂，其制备方法及其使用阻燃剂

    公开(公告)号：WO2010059508A1

    公开(公告)日：2010-05-27

    申请号：PCT/US2009/064305

    申请日：2009-11-13

    Applicant: ALBEMARLE CORPORATION ,  GIESSELBACH, Monika ,  HOEPFL, Wolfgang ,  HEINES, Guenther, Peter ,  HERBIET, Rene, G.E.

    Inventor： GIESSELBACH, Monika ,  HOEPFL, Wolfgang ,  HEINES, Guenther, Peter ,  HERBIET, Rene, G.E.

    IPC: C08K3/32 ,  C08K3/34 ,  C01B25/18 ,  C01B33/32 ,  C09K21/02

    CPC classification number: C08K3/32 ,  C01B33/12 ,  C01B33/32 ,  C01P2004/61 ,  C08K3/34 ,  C09K21/02 ,  C09K21/04

    Abstract: Quite unexpectedly, by suitably modifying the crystal structure of hydrogarnets of the general formula M II 3 Mr III 2 (OH) 12 (where M II denotes divalent metal ions, especially alkaline earth metal ions, of Group IIA of the periodic table and M III denotes trivalent metal ions of Group IIIA of the periodic table, especially aluminum) with suitable amounts of incorporated silicate and/or phosphate, flame retardants having both a higher flame retardant efficiency than such traditional mineral flame retardants as ATH and MDH, and a higher thermal stability than ATH can be produced. It has also been found that synthetic hydrogarnets of the general formula M II 3 Mr III 2 (OH) 12 (where M II and M III are as defined above) having cubic crystal shapes can be produced, and these synthetic hydrogarnets also show high flame retardant efficiency.

    Abstract translation: 非常出乎意料地，通过适当地改变通式MII 3MrIII 2（OH）12（其中MII表示二价金属离子，特别是碱土金属离子，元素周期表IIA族的金属离子）的晶体结构，MIII表示三价金属离子的三价金属离子 具有合适量的掺入硅酸盐和/或磷酸盐的元素周期表IIIA族，特别是铝）具有比ATH和MDH的传统矿物阻燃剂更高的阻燃效率和比ATH更高的热稳定性的阻燃剂可以是 产生的。 还已经发现，可以生产具有立方晶体形状的通式MII 3MrIII 2（OH）12（其中MII和MIII如上所定义）的合成水甘油，并且这些合成水甘油也显示出高阻燃效率。

    PHOSPHORIC ACID PRODUCTION METHODS AND COMPOSITIONS
    6.
    发明申请
    PHOSPHORIC ACID PRODUCTION METHODS AND COMPOSITIONS 审中-公开

    公开(公告)号：WO2020072610A1

    公开(公告)日：2020-04-09

    申请号：PCT/US2019/054248

    申请日：2019-10-02

    Applicant: CYTEC INDUSTRIES INC.

    Inventor： QIU, Xueping ,  ZHANG, Lei

    IPC: C01B25/18

    Abstract: A wet process phosphoric acid production method comprises digesting phosphate- containing ore in a slurry comprising sulfuric acid, whereby phosphoric acid and calcium sulfate crystals are formed; and separating the phosphoric acid from the calcium sulfate crystals; wherein a defoamer and a poly(carboxylic acid), or salt thereof, having a weight- average molecular weight of less than 1,000,000 grams per mole (g/mol), are added to the slurry. The poly (carboxylic acid) can be a poly(acrylic acid), or salt thereof, and the defoamer can be a dialkyl sulfo succinate salt and an aliphatic alcohol or a fatty acid ester. The method enhances separation of phosphoric acid from calcium sulfate crystals in wet process phosphoric acid production by any one of increasing the volume average particle size of the calcium sulfate crystals, increasing filtration rate, and reducing foam formation.

    适用于窑法磷酸工艺的原料预处理方法和原料预处理工艺系统
    7.
    发明申请
    适用于窑法磷酸工艺的原料预处理方法和原料预处理工艺系统 审中-公开

    公开(公告)号：WO2014194571A1

    公开(公告)日：2014-12-11

    申请号：PCT/CN2013/081232

    申请日：2013-08-09

    Applicant: 四川玖长科技有限公司

    Inventor： 侯拥和 ,  吴鋆 ,  刘诗华

    IPC: C01B25/18

    CPC classification number: C01B25/185 ,  B02C21/00 ,  B02C23/08 ,  B02C23/18 ,  C01B25/20

    Abstract: 本发明公开了一种适用于窑法磷酸工艺的原料预处理工艺系统，包括相互独立的碳质还原剂、磷矿石和硅石预处理系统，各预处理系统的出口通过输送设备均连接至内球料混合装置，碳质还原剂和硅石预处理系统的出口另通过输送设备均连接至外壳料混合装置；各预处理系统主要由依次相连的单段破碎设备、中间料仓、磨矿设备、储料仓和配料装置组成。本发明还公开了一种适用于窑法磷酸工艺的原料预处理方法，即将碳质还原剂、磷矿石和硅石分别用各自的预处理系统进行预处理，然后送入内球料混合装置进行造球，预处理后的碳质还原剂和硅石另送入外壳料混合装置进行混合。本发明具有结构优化合理、成本低、能耗小、能保证窑法磷酸工艺稳定运行等显著优势。

    窑法磷酸工艺中还原磷矿石的回转窑及解决窑法磷酸工艺窑尾结圈的方法
    8.
    发明申请
    窑法磷酸工艺中还原磷矿石的回转窑及解决窑法磷酸工艺窑尾结圈的方法 审中-公开

    公开(公告)号：WO2014194567A1

    公开(公告)日：2014-12-11

    申请号：PCT/CN2013/081164

    申请日：2013-08-09

    Applicant: 四川玖长科技有限公司

    Inventor： 侯拥和 ,  魏世发 ,  王朋生 ,  王佳宾

    IPC: F27B7/00 ,  C01B25/18

    CPC classification number: C01B25/18 ,  F27B7/06 ,  F27B7/20 ,  F27B7/26 ,  F27D99/0033

    Abstract: 本发明公开了一种用于窑法磷酸工艺中还原磷矿石的回转窑，包括窑体、窑头箱、窑尾箱和驱动窑体转动的驱动装置，在窑头处设有燃料烧嘴，在窑尾箱处设有进料管和一连接至外部水化塔的出口烟道，窑体的上部不设置风管，出口烟道设于以回转窑轴线为中心的窑体半径范围内，且出口烟道中的烟气输送方向与回转窑的轴线方向基本平行或呈小于45°的夹角。采用本发明的回转窑进行窑法磷酸工艺时，使原料从窑尾箱进入，点燃燃料烧嘴加热，磷矿石原料在高温条件下还原后生成出窑烟气，本发明使出窑烟气在进入出口烟道时不发生较大偏移，进而阻止窑尾处产生离心物理沉降，使窑气中的偏磷酸直接随出窑烟气进入水化塔。本发明可有效缓解回转窑窑尾结圈现象。

    CALCIUM FORTIFICATION SUBSTANCE FOR CLEAR BEVERAGES
    9.
    发明申请
    CALCIUM FORTIFICATION SUBSTANCE FOR CLEAR BEVERAGES 审中-公开
    钙清除剂的清除物质

    公开(公告)号：WO2007146184A3

    公开(公告)日：2008-02-07

    申请号：PCT/US2007013619

    申请日：2007-06-08

    Applicant: INNOPHOS INC ,  GODBER JOHN ,  SHAHEED AMR

    Inventor： GODBER JOHN ,  SHAHEED AMR

    IPC: C01B25/00 ,  C01B25/18

    CPC classification number: A23L2/52 ,  A23L33/16

    Abstract: Compositions comprising calcium and phosphate which are sufficiently soluble in water to dissolve essentially without any cloudiness in the water are provided. The compositions may be used to provide clear beverages that are fortified in calcium and phosphate. Methods of making the calcium and phosphate compositions are also provided.

    Abstract translation: 提供了包含钙和磷酸盐的组合物，其充分溶于水以基本上在水中没有任何混浊。 组合物可用于提供在钙和磷酸盐中强化的清澈饮料。 还提供了制备钙和磷酸盐组合物的方法。

    PHOSPHATE ACIDULATION UTILIZING HF ACID
    10.
    发明申请
    PHOSPHATE ACIDULATION UTILIZING HF ACID 审中-公开
    使用HF酸的磷酸盐化合物

    公开(公告)号：WO01096236A1

    公开(公告)日：2001-12-20

    申请号：PCT/US2001/010847

    申请日：2001-06-07

    IPC: C01B7/19 ,  C01B25/18 ,  C01B25/22 ,  C01F11/22 ,  C01F11/46 ,  C01B25/16 ,  C01B25/32

    CPC classification number: C01B25/22 ,  C01B7/191 ,  C01B7/192 ,  C01F11/22 ,  C01F11/46

    Abstract: Phosphoric acid, essentially free from impurities, is prepared by reacting aqueous hydrofluoric acid with phosphate in particles of calcium bearing phosphate rock to form a calcium fluoride pseudomorph solid from which filter-grade phosphoric acid is separated. By reacting the pseudomorph solid with sulfuric acid and thermally treating the reaction product, the HF can be liberated and recycled back to the reaction step of the process. All of the impurities from the phosphate rock are contained in the resulting CaSO4.

    Abstract translation: 基本上不含杂质的磷酸是通过使含氟磷酸盐岩的颗粒中的氢氟酸与磷酸盐反应制成的，以形成氟化钙假晶体固体，从其中分离过滤级磷酸。 通过将假固体与硫酸反应并对反应产物进行热处理，可以将HF释放并循环回到该方法的反应步骤。 所产生的CaSO4中含有所有来自磷酸盐岩的杂质。

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