利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

32 条记录 (耗时 0.011 秒)

    VERFAHREN ZUR ELEKTRODIALYTISCHEN HERSTELLUNG VON LITHIUMHYDROXID-HALTIGEN WÄSSRIGEN LÖSUNGEN AUS VERUNREINIGTEN LITHIUMHALTIGEN WÄSSRIGEN DILUATEN
    12.
    发明公开
    VERFAHREN ZUR ELEKTRODIALYTISCHEN HERSTELLUNG VON LITHIUMHYDROXID-HALTIGEN WÄSSRIGEN LÖSUNGEN AUS VERUNREINIGTEN LITHIUMHALTIGEN WÄSSRIGEN DILUATEN 审中-公开
    用于生产氢氧化锂的电渗析含水溶液中被污染的含锂水性DILUATEN

    公开(公告)号：EP3061518A1

    公开(公告)日：2016-08-31

    申请号：EP16157263.1

    申请日：2016-02-25

    申请人： Technische Universität Bergakademie Freiberg

    发明人： Bertau, Martin, Prof. Dr. ,  Martin, Gunther

    IPC分类号： B01D61/44 ,  C01D5/02 ,  C25B1/16

    CPC分类号： C01D15/02 ,  B01D61/445 ,  B01D2311/08 ,  B01D2311/2649

    摘要： Die Erfindung betrifft ein Verfahren zur Herstellung von lithiumhydroxidhaltigen wässrigen Lösungen, bei dem ein verunreinigtes, lithiumhaltiges, wässriges Diluat elektrodialytisch durch mindestens eine Elektrodialysezelle in ein lithiumhydroxidhaltiges wässriges Konzentrat und eine Säure getrennt wird und dabei Diluat, Konzentrat und Säure in drei unabhängigen Prozessströmen im kontinuierlichen Kreislauf geführt werden, wobei mindestens einer der drei Prozessströme kontinuierlich durch eine Einheit zum Filtrieren des Prozessstromes gelenkt wird und eine Vorrichtung zur Herstellung von lithiumhydroxidhaltigen wässrigen Lösungen.

    摘要翻译： 本发明涉及一种用于lithiumhydroxidhaltigen水溶液的制备，其中被污染的，含锂的，含水的稀释液是由至少一个电渗析池在一lithiumhydroxidhaltiges含水浓缩物和酸电渗析分离，从而稀释液，浓缩并在三个独立的过程酸在连续循环流 被引导，其中，所述三个工艺流中的至少一个通过一个单元被连续地引导用于过滤工艺流和用于生产lithiumhydroxidhaltigen水溶液的装置。

    POTASSIUM SULFATE CONTAINING TRACE ELEMENTS
    16.
    发明公开
    POTASSIUM SULFATE CONTAINING TRACE ELEMENTS 审中-公开

    公开(公告)号：EP3647300A1

    公开(公告)日：2020-05-06

    申请号：EP18203979.2

    申请日：2018-11-01

    申请人： Tessenderlo Group NV

    发明人： Strobbe, Mark ,  Losson, Patrick

    IPC分类号： C05D1/02 ,  C05D1/00 ,  C05D9/02 ,  C01D5/02

    摘要： The present invention relates to a process of the preparation of an improved potassium sulfate product comprising micronutrients, said process comprising the steps of: (i) providing a potassium sulfate at a temperature of between about 50°C and about 500°C, and (ii) mixing said potassium sulfate with or more micronutrients selected from the group consisting of sodium, zinc, manganese, magnesium, iron, molybdenum, copper, boron, or mixtures thereof. The present invention also relates to product as such obtained.

    A PROCESS FOR PRODUCING SILICA, SODIUM SULFITE AND SODIUM HYDROGEN SULFITE WITH SODIUM SULFATE
    17.
    发明公开
    A PROCESS FOR PRODUCING SILICA, SODIUM SULFITE AND SODIUM HYDROGEN SULFITE WITH SODIUM SULFATE 审中-公开
    用于生产硅，钠和WITH硫酸钠

    公开(公告)号：EP1888461A1

    公开(公告)日：2008-02-20

    申请号：EP06742113.1

    申请日：2006-06-06

    申请人： Degussa (Wellink Silica (Nanping) Co., Ltd.

    发明人： Lu, Yuanjian, No. 18 Jinbu Road, Ziyun Street

    IPC分类号： C01B33/113 ,  C01D5/14 ,  C01D5/02 ,  C09C1/28

    CPC分类号： C01B33/32 ,  C01B33/193 ,  C01D5/02 ,  C01D5/14

    摘要： The present invention provides a process for producing silica, sodium sulfite and sodium hydrogen sulfite with sodium sulfate, wherein quartz sand, sodium sulfate and carbon are mixed and charged into a furnace for reaction and the obtained solid sodium silicate and sulfur dioxide are used to prepare silica, sodium sulfite and sodium hydrogen sulfite according to the following steps: 1) To produce silica: said solid sodium silicate is dissolved in water and filtered to produce a water glass solution; then sulfuric acid is reacted with said water glass solution to produce precipitated silica and sodium sulfate; and the precipitated silica is washed, filtered, liquefied and dried to produce silica; 2) To produce sodium sulfite: soda is added into a sodium hydrogen sulfite solution to produce sodium sulfite solution; one part of said sodium sulfite solution is concentrated and evaporated to obtain dry sodium sulfite; and the other part of the sodium sulfite solution is reacted with the sulfur dioxide produced during the production of the sodium silicate to produce sodium hydrogen sulfite solution, which can be recycled and reused in step (2); 3) To produce sodium hydrogen sulfite: soda is added into a sodium hydrogen sulfite solution followed by reacting with the sulfur dioxide produced during the production of the sodium silicate to produce a supersaturated sodium hydrogen sulfite solution, which is crystallized and dried to obtain a dry solid sodium hydrogen sulfite. The process of the present invention produces various products at low production cost and without causing environmental problems, and thus it has great practical value.

    PROCESS FOR PRODUCING POTASSIUM SULPHATE
    19.
    发明公开
    PROCESS FOR PRODUCING POTASSIUM SULPHATE 审中-公开

    公开(公告)号：EP3680217A1

    公开(公告)日：2020-07-15

    申请号：EP19150853.0

    申请日：2019-01-08

    申请人： Tessenderlo Group NV

    发明人： LANDUYT, Peter

    IPC分类号： C01D5/02 ,  C01B7/03

    摘要： A process for the production of potassium sulphate by conversion of potassium chloride and sulphuric acid using a muffle furnace, said furnace comprising a reaction chamber and a combustion chamber, wherein in the reaction chamber potassium chloride (KCI) and potassium hydrogen sulfate (KHSO4) are reacted to form potassium sulphate while supplying heat to the reaction chamber from the combustion chamber, wherein the combustion chamber has at least a pair of regenerative burners and wherein the process comprises the steps of alternatingly causing one of the regenerative burners to perform a combustion operation in the combustion chamber to heat the reaction chamber and another of the regenerative burners to perform a heat-regenerating operation in a regenerator, wherein the pressure in the combustion chamber is kept at a pressure of between 0.2 and 3 mbarg.