METHOD FOR REDUCING THE VISIBLE DOWNWIND DETACHED PLUME OPACITY
    4.
    发明公开
    METHOD FOR REDUCING THE VISIBLE DOWNWIND DETACHED PLUME OPACITY 有权
    方法以减小风分离烟雾蒸汽不透明度

    公开(公告)号:EP2935157A1

    公开(公告)日:2015-10-28

    申请号:EP13807928.0

    申请日:2013-12-05

    IPC分类号: C05C9/00

    CPC分类号: B01D53/58 B01J2/00 C05C9/005

    摘要: The invention relates to a method for reducing aerosol emissions from a urea granulation plant with a recovery of the resulting scrubber bleeds, with • a granulator producing urea from a concentrated urea solution and an evaporation of the included water, giving urea granulates and an exhaust of dust, ammonia and ammonium cyanate, and • a following scrubbing or removing stage for the dust, and • a following scrubbing acid stage, resulting in a first stream comprising mainly aerosols and a second stream comprising ammonium salts, and • a following aerosol stage with spray and collection devices, releasing a first stream of an exhaust of air, and a second stream of ammonium cyanate and water, and • the second stream of the aerosol stage of ammonium cyanate and water is recovered into the urea granulation plant or into a urea fertilizer plant.

    VERFAHREN ZUR HERSTELLUNG VON NATRIUMPERCARBONAT

    公开(公告)号:EP0944549B1

    公开(公告)日:2011-03-30

    申请号:EP97951852.9

    申请日:1997-12-12

    IPC分类号: C01B15/10

    摘要: The invention relates to a novel method for the 'dry' production of sodium percarbonate (dry process). Monohydrate crystal is reacted with a quasi-stoichiometric quantity of concentrated aqueous hydrogen peroxide solution, in relation to the quantity of active oxygen required in the sodium percarbonate. This method can be combined to great advantage with the subsequent compaction of the sodium percarbonate obtained. Sodium percarbonate products containing varying concentrations of active oxygen of at least 10 weight percent, but in particular with high active oxygen concentrations of above 14.5 weight percent, can be produced. The resulting sodium percarbonate products are characterized in that they have remarkably advantageous characteristic as regards dissolution rate, stability and compatibility with detergent base, and are superior to conventional sodium percarbonates obtained, for example, by a crystallisation process. The invention also relates to said percarbonate sodium products and detergent compounds containing same.

    摘要翻译: 本发明涉及一种“干”生产过碳酸钠的新方法(干法)。 相对于过碳酸钠所需的活性氧量,一水合物晶体与准化学计量的浓过氧化氢水溶液反应。 这种方法可以结合使用,以获得随后的过碳酸钠压实。 可以产生含有至少10重量%的变化浓度的活性氧,特别是具有高于14.5重量%的高活性氧浓度的过碳酸钠产品。 所得到的过碳酸钠产品的特征在于它们在溶解速率,稳定性和与洗涤剂基质的相容性方面具有显着有利的特性,并且优于例如通过结晶过程获得的常规过碳酸钠。 本发明还涉及所述过碳酸钠产品和含有其的洗涤剂化合物。

    A GRANULATOR DEVICE FOR THE TREATMENT OF POWDERED PRODUCTS
    7.
    发明授权
    A GRANULATOR DEVICE FOR THE TREATMENT OF POWDERED PRODUCTS 有权
    粒化粉末制品的治疗

    公开(公告)号:EP1651339B1

    公开(公告)日:2009-06-24

    申请号:EP04744194.4

    申请日:2004-08-02

    IPC分类号: B01J2/16 B01D46/24

    摘要: A granulator device (101) for the treatment of powdered products comprises a closed container (102) forming a chamber (103) for treatment of the products, filter elements (104, 105) projecting into the treatment chamber (103), the filter elements comprising a multi-layer filtering wall (105) through which a fluid current can pass, and powder removing parts (106; 107, 108, 109, 110) designed to diffuse at least one service fluid directed towards at least the filtering wall (105); the powder removing parts (106; 107, 108, 109, 110) having at least first diffuser nozzles (107) and at least second diffuser nozzles (108) to diffuse the service fluid so as to free the filtering wall (105) of the powders trapped in it; there also being parts (140, 142, 147) for supporting and driving the filter elements (104, 105) which can change the angle of the filter elements (104, 105) from a first operating position, in which at least the first nozzles (107) act on the filtering wall (105), to a second operating position in which the filter elements (104) are set at an angle to the first operating position to allow the second diffuser nozzles (108) to operate on the filtering wall (105).

    SYSTEM AND METHOD FOR PRODUCING DRUG-LOADED MICROPARTICLES
    8.
    发明授权
    SYSTEM AND METHOD FOR PRODUCING DRUG-LOADED MICROPARTICLES 失效
    系统及其制造方法装载药物微粒

    公开(公告)号:EP0833614B1

    公开(公告)日:2007-02-14

    申请号:EP96918456.3

    申请日:1996-06-06

    申请人: SRI International

    IPC分类号: A61K9/14 A61K38/17 A61K9/16

    摘要: Method and system of producing microparticles loaded with biologically active drugs, including proteins such as ICAM-1, for controlled release of the drugs in a nasal passageway. The method includes introducing a drug/polymer feed solution and an emulsifier into a first mixing chamber to create an emulsion, then mixing a cross-linking agent together with the emulsion under controlled conditions to create microparticles loaded with the drug. The system includes a first mixing chamber, in which the emulsion is created, having a first port for introducing the drug/polymer solution, and a second port angled substantially perpendicular to the first port for introducing the emulsifier. A second mixing chamber adjacent to the first mixing chamber receives the emulsion and either contains a cross-linking agent or receives a stream of a cross-linking agent to solidify the microparticles. The formed microparticles are filtered and deaggregated to form individual microparticles that then may be formulated for nasal passageway delivery.