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    • 6. 发明公开
    • Thermal flow sensor having an asymmetric design
    • Thermischer Durchflussmesser mit不对称设计
    • EP1837308A2
    • 2007-09-26
    • EP07075520.2
    • 2005-06-29
    • Codman & Shurtleff, Inc.
    • Neuenschwander, BeatSchwarzenback, HansueliBurger, JuergenZumkehr, FrankCrivelli, Rocco
    • C01F20060101
    • G01F1/6845
    • A thermal flow sensor has a first, second and third substrate, each having a first side and a second opposite side. The first substrate is connected to the second substrate such that the second side of the first substrate abuts the first side of the second substrate. The third substrate is connected to the second substrate such that the second side of the second substrate abuts the first side of the third substrate. The second substrate has a groove formed therein so as to form a conduit bounded by the second substrate and the second side of the first substrate and the first side of the third substrate. The conduit has a fluid flow direction. A heater is disposed on the first side of the first substrate opposed to the conduit. A first temperature sensor is disposed on the first side of the first substrate opposed to the conduit and at a first predetermined distance from the heater in a direction opposite to the fluid flow direction. A second temperature sensor is disposed on the first side of the first substrate opposed to the conduit and at a second predetermined distance from the heater in a direction opposite to the fluid flow direction. The second predetermined distance is greater than the first predetermined direction.
    • 热流传感器具有第一,第二和第三基板,每个具有第一侧和第二相对侧。 第一基板连接到第二基板,使得第一基板的第二面邻接第二基板的第一侧。 第三基板连接到第二基板,使得第二基板的第二侧邻接第三基板的第一侧。 第二基板具有形成在其中的槽,以形成由第二基板限定的导管,第一基板的第二侧和第三基板的第一侧。 导管具有流体流动方向。 加热器设置在与导管相对的第一基板的第一侧上。 第一温度传感器设置在与导管相对的第一基板的第一侧上,并且在与流体流动方向相反的方向上与加热器隔开第一预定距离。 第二温度传感器设置在与导管相对的第一基板的第一侧上,并且在与流体流动方向相反的方向上与加热器隔开第二预定距离。 第二预定距离大于第一预定方向。
    • 9. 发明授权
    • Process for producing pure magnesium oxide
    • 纯氧化镁生产工艺
    • US4944928A
    • 1990-07-31
    • US342503
    • 1989-02-27
    • Michael GrillGerhard Graf
    • Michael GrillGerhard Graf
    • C01F5/06C01F20060101C01F5/00C01F5/02C01F5/10C01F5/30
    • C01F5/30C01F5/10C01P2004/61
    • A process for the preparation of pure magnesium oxide, especially suitable for the preparation of refractory products, from magnesium silicate and magnesium hydrosilicate materials such as olivine, serpentine, garnierite, or the like, the starting material being decomposed (digested) with hydrochloric acid, the residues being separated from the decomposition slurry and the sesquioxides to be regarded as contaminants and other contaminants being precipitated from the crude brine thus obtained by the addition of crude serpentine as a pH increasing substance, the precipitates being separated and the magnesium chloride solution thus obtained being subjected to thermal decomposition, particularly by spray calcination, whereby magnesium oxide is obtained and hydrogen chloride is recovered.
    • PCT No.PCT / AT88 / 00048 Sec。 371日期1989年2月27日 102(e)日期1989年2月27日PCT Filed 1988年6月23日PCT Pub。 出版物WO88 / 10236 日期:1988年12月29日。一种由硅酸镁和硅酸镁硅酸盐材料如橄榄石,蛇纹石,闪点岩等制备纯氧化镁的方法,特别适用于制备耐火材料,原料被分解 (消化),残留物与分解浆料和三倍氧化物分离,被认为是污染物,其他污染物从这样得到的粗盐水中沉淀,通过加入粗蛇形碱作为pH增加物质,析出物被分离 将得到的氯化镁溶液进行热分解,特别是通过喷雾煅烧,得到氧化镁,回收氯化氢。