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1. 发明授权

US07807119B2 Bayer process for production of alumina trihydrate, the said improvement relating to separation of aluminate liquor and insoluble residues 失效
标题翻译：用于生产三水合氧化铝的拜耳法，所述改进涉及铝酸盐液体和不溶性残留物的分离
公开(公告)号：US07807119B2
公开(公告)日：2010-10-05
申请号：US11573749
申请日：2005-09-19
申请人： Jean-Marc Rousseaux , Gerard Pignol , Yves Magnan
发明人： Jean-Marc Rousseaux , Gerard Pignol , Yves Magnan
IPC分类号： C01F7/00
CPC分类号： B01D21/01 , B01D21/26 , B01D21/267 , C01F7/0646 , Y10T137/85954
摘要： A process for the production of alumina trihydrate by alkaline digestion of bauxite using the Bayer process in which aluminate liquor and insoluble residues are separated using a solid/liquid separation device (E; W2; DC) characterised in that the said slurry (21a; 41; 230′) is at least partially passed through a hydrocyclone (H1; H21; H22; H3) to improve and accelerate the separation of the sodium aluminate liquor from the insoluble residues in the slurry (21a; 41; 230′) containing the said liquor and the said residues and that supplies or is derived from the said liquid-solid separation device. In a first embodiment, at least one hydrocyclone is used at the upstream side of the settler-thickener, as clarifier of the pregnant liquor. In a second embodiment, at least one hydrocyclone is used as a thickener of insoluble residue mud. In a third embodiment, a hydrocyclone is used in combination with the causticisation settler.
摘要翻译：使用使用固/液分离装置（E; W2; DC）分离铝酸盐液体和不溶性残余物的拜耳法碱性消解铝土矿来生产氧化铝三水合物的方法，其特征在于所述浆料（21a; 41 ; 230'）至少部分地通过水力旋流器（H1; H21; H22; H3），以改善和加速铝酸钠液体与含有所述的水蒸气分离器的浆液（21a; 41; 230'）中的不溶性残留物的分离液和所述残留物，并且供应或衍生自所述液固分离装置。在第一实施方案中，在沉降器 - 增稠剂的上游侧使用至少一种水力旋流器作为怀孕液体的澄清剂。在第二个实施方案中，使用至少一个水力旋流器作为不溶残余泥浆的增稠剂。在第三个实施例中，水力旋流器与苛化沉降器组合使用。

2. 发明授权

US07704471B2 Bayer process for production of alumina trihydrate by alkaline digestion of bauxite, the process comprising a predesilication step 失效
标题翻译：通过铝土矿的碱性消解生产氧化铝三水合物的拜耳法，该方法包括预清洗步骤
公开(公告)号：US07704471B2
公开(公告)日：2010-04-27
申请号：US11569290
申请日：2005-05-11
申请人： Eric Tizon , Clotilde Fryns
发明人： Eric Tizon , Clotilde Fryns
IPC分类号： C01F7/00
CPC分类号： C01F7/47 , C01F7/0613 , C01F7/062
摘要： A Bayer process comprises grinding and then digestion of bauxite by bringing it into contact with a sodium aluminate liquor. Digestion consists of forming a slurry that is then treated to separate insoluble residues from the sodium aluminate liquor. The liquor is then crystallized and recycled back to green liquor after having been separated from the alumina trihydrate precipitated during crystallization. The process comprises a predesilication treatment during which the ground bauxite, before digestion, is brought into contact with an aqueous sodic solution that has a content of carbonates, sulphates and possibly chlorides which, expressed as a percentage related to the caustic concentration, has less than half of the corresponding impurities content of the spent liquor. Preferably, the pure caustic soda used to compensate for caustic soda losses in the Bayer circuit, previously injected just after evaporation, is now added in the aqueous sodic solution for the predesilication treatment.
摘要翻译：拜耳方法包括通过使其与铝酸钠液体接触来研磨并随后消化铝土矿。消化由形成浆料组成，然后将其处理以从铝酸钠液体中分离出不溶性残留物。然后在结晶中沉淀出的三水合氧化铝被分离后，将液体结晶并循环回绿液。该方法包括预清洗处理，其中在消化之前，研磨的铝土矿与含有碳酸盐，硫酸盐和可能的氯化物的水溶液接触，其以与苛性碱浓度相关的百分比表示，具有小于废液中相应杂质含量的一半。优选地，用于补偿先前在蒸发之后注入的拜耳回路中的苛性钠损失的纯苛性钠现在被加入用于预溶解处理的水溶液中。

3. 发明授权

US07429314B2 Device for controlling the travel distance of a chisel in a feeding system for an aluminium production electrolytic cell 失效
标题翻译：用于控制用于铝生产电解槽的供料系统中凿子行进距离的装置
公开(公告)号：US07429314B2
公开(公告)日：2008-09-30
申请号：US11220905
申请日：2005-09-08
申请人： Sebastien Couvreur , Jerome Bos , Silvino Caetano , Christian Dreyer
发明人： Sebastien Couvreur , Jerome Bos , Silvino Caetano , Christian Dreyer
IPC分类号： C25C3/14
CPC分类号： C25C3/14
摘要： Device for equipment of a cell (1) comprising an electrolytic bath (4) covered with a crust (5), with a chisel (13) that can be moved vertically between a high position in which it is above the crust (5) and a low position in which the crust (5) is perforated and in which contact is made with the bath (4), the device (11) comprising means of detecting electrical contact between the chisel (13) and the bath (4), these means comprising an electrical circuit (19) capable of making an electrical measurement between the chisel (13) and a point (20) in the cell used as an electrical reference, and taking immediate action on the actuator to cause vertical upwards displacement of the chisel when a predetermined value of an electrical measurement is reached. The electrical circuit (19) is connected to the chisel (13), to the rod (14) of the chisel (13) or to the actuator rod (17) through connecting means capable of creating a point contact (24) at least one point between the circuit (19) and the chisel (13), the rod (14) of the chisel (13) or the actuator rod, these connecting means (23) being acted upon by elastic means (25) pushing them towards the chisel (13), the rod (14) of the chisel (13) or the actuator rod (17) respectively.
摘要翻译： 1.一种电池设备（1），包括被地壳（5）覆盖的电解槽（4），凿子（13）能够在高于地壳（5）上方的高位置和所述装置（11）包括检测所述凿子（13）和所述沐浴（4）之间的电接触的装置，所述装置（11）包括用于检测所述地壳（5）穿孔的低位置，并且所述装置（11）装置包括能够在凿子（13）和用作电气参考的电池中的点（20）之间进行电气测量的电路（19），并且立即对致动器作用以引起凿子的垂直向上位移当达到电测量的预定值时。电路（19）通过能够形成点接触（24）的连接装置连接到凿子（13），连接到凿子（13）的杆（14）或致动器杆（17）电路（19）和凿子（13）之间，凿子（13）的杆（14）或致动器杆的这些连接装置（23）由弹性装置（25）作用，将它们推向凿子（13），凿子（13）的杆（14）或致动器杆（17）。

4. 发明授权

US07258155B2 Ingot mould for quenching metals and ingots thus obtained 失效
标题翻译：用于淬火由此获得的金属和锭的锭模
公开(公告)号：US07258155B2
公开(公告)日：2007-08-21
申请号：US10543419
申请日：2004-02-17
申请人： Thomas Spadone , Robert Rey-Flandrin
发明人： Thomas Spadone , Robert Rey-Flandrin
IPC分类号： B22D5/00
CPC分类号： B22D5/005 , B22D7/005
摘要： An ingot mold for metals which is intended for the production of an ingot through the cooling and solidification of a liquid metal mass. The mold includes a wall which defines a base and an inner surface having a part S, known as the cooling surface, which can discharge all or part of the heat energy released by the metal mass during the cooling and solidification thereof. The cooling surface S includes at least one flat surface element Si which forms all or part of the base (4) of the ingot mold. There is also at least one point C on a plane Pi which is tangential to each surface element Si, such that all of the segments of a straight line D connecting every point R of the cooling surface S to point C are only located inside the mold. Further, the total area of surface elements Si is at least equal to 10% of the surface S. The ingot mold can be used to accelerate the production of ingots.
摘要翻译：用于金属的锭模，其用于通过液态金属块的冷却和凝固来生产锭。模具包括限定基部的壁和具有被称为冷却表面的部分S的内表面，其可以在其冷却和固化期间排出金属块释放的全部或部分热能。冷却表面S包括至少一个平坦表面元件Si，其形成锭模具的全部或部分基部（4）。在与每个表面元件Si相切的平面Pi上还存在至少一个点C，使得将冷却表面S的每个点R连接到点C的直线D的所有段仅位于模具内。此外，表面元素Si的总面积至少等于表面S的10％。锭模可以用于加速锭的生产。

5. 发明授权

US06983060B1 Method to measure degree and homogeneity of alumina calcination 失效
标题翻译：测量氧化铝煅烧程度和均匀度的方法
公开(公告)号：US06983060B1
公开(公告)日：2006-01-03
申请号：US10130260
申请日：2000-11-21
申请人： Valerie Martinent-Catalot , Jean-Michel Lamerant , Bernard Rouit
发明人： Valerie Martinent-Catalot , Jean-Michel Lamerant , Bernard Rouit
IPC分类号： G06K9/00 , G01N21/25 , G01N33/20 , G01N37/00
CPC分类号： G01N21/31
摘要： A method for measuring degree and homogeneity of calcination of alumina utilizing an image analysis device equipped with a sensitive camera in a spectral analysis window corresponding to a wavelength range equal to or in the vicinity of visible light. The method includes the steps of mixing alumina under analysis in a liquid wherein the refractive index is, in the wavelength range, between the refractive index of a lightly calcined alumina and the refractive index of a strongly calcined alumina, preparing a slide for observation of the mixture in the image analysis device, the mixture being illuminated by stable polychromatic radiation compatible with the spectral analysis window, receiving an image by the camera and processing a signal resulting in the definition of an image composed of a given number of pixels with three calorimetric components, and statistically processing the pixels using their calorimetric components and determining the calcination degree and the homogeneity of the calcination.
摘要翻译：使用在与可见光相等或附近的光谱分析窗口对应的光谱分析窗口中，配备有敏感照相机的图像分析装置，测量氧化铝煅烧程度和均匀性的方法。该方法包括以下步骤：在液体中混合氧化铝，其中折射率在波长范围内在轻度煅烧氧化铝的折射率和强烈煅烧氧化铝的折射率之间，制备用于观察混合物通过与光谱分析窗口相容的稳定多色辐射照射，通过照相机接收图像并处理由三个量热分量组成的给定数量像素组成的图像的信号，并使用其量热分量统计处理像素，并确定煅烧程度和煅烧的均匀性。

6. 发明授权

US06838024B1 Method for making carbon blocks highly resistant to thermal shock 失效
标题翻译：制造耐热冲击的碳块的方法
公开(公告)号：US06838024B1
公开(公告)日：2005-01-04
申请号：US10111400
申请日：2000-11-21
申请人： Christian Dreyer , Bernard Samanos
发明人： Christian Dreyer , Bernard Samanos
IPC分类号： B29B9/00 , B29B11/14 , C01B31/00 , C04B20060101 , C04B35/532 , C04B35/626 , C25C20060101 , C25C3/12 , H01M4/58
CPC分类号： C25C3/125 , C04B35/532
摘要： The invention relates to a simplified production process with which it is possible to obtain carbon blocks, in particular anodes intended for aluminium production using the Hall-Héroult electrolysis process, which have high thermal shock resistance. This process comprises a grain size distribution adjustment operation of a carbon aggregate which includes: a) separating an initial ungraded carbon aggregate AC into a first fraction F1 made up of grains whose sizes are smaller than X, and into a second fraction F2 made up of grains whose sizes are X or greater, X lying between 0.2 and 2 mm; b) crushing B1 the first fraction F1 and part P1 of the second fraction F2 such as to obtain a powder F comprising a controlled proportion of ultra-fine grains; c) mixing the remaining part P2 of fraction F2 and said powder F in proportions with which it is possible to obtain crude carbon blocks whose so-called “Gr/S” ratio between the proportion PGr of grains larger than 0.3 mm and the proportion PS of grains between 30 μm and 0.3 mm in size is at least equal to 4 and baked carbon blocks of high density.
摘要翻译：本发明涉及一种简化的生产方法，通过该方法可以获得具有高耐热冲击性的使用Hall-Héroult电解方法的碳块，特别是用于铝生产的阳极。该方法包括碳骨料的粒度分布调整操作，其包括：a）将初始未分级碳骨料AC分离成由尺寸小于X的晶粒构成的第一级分F1，并分成由尺寸为X或更大的X，X在0.2和2mm之间; b）将第一级分F1和第二级分F2的部分P1粉碎B1以获得包含受控比例的超细晶粒的粉末F; c ），以比例可以得到比例的组分F2和粉末F的剩余部分P2，其中所得的粗碳块的粒径大于0.3mm的所谓的“Gr / S”比例与比例PS 30μm至0.3mm之间的颗粒至少等于4，并且具有高密度的烘烤碳块。

7. 发明授权

US6065867A Method and device for measuring the temperature and the level of the molten electrolysis bath in cells for aluminum production 失效
标题翻译：用于测量铝生产的电池中熔融电解槽的温度和水平的方法和装置
公开(公告)号：US6065867A
公开(公告)日：2000-05-23
申请号：US570496
申请日：1995-12-11
申请人： Benoit Sulmont , Pierre Homsi , Olivier Granacher
发明人： Benoit Sulmont , Pierre Homsi , Olivier Granacher
IPC分类号： C25C3/20 , G01K13/00 , C25C3/14 , G01F23/24
CPC分类号： C25C3/20
摘要： A method for measuring temperature and electrolyte level of a molten electrolysis bath in a cell for production of aluminum by electrolysis of alumina includes the steps of: (a) piercing the crust of a solidified bath with a crust breaker and immersing into the electrolyte, an extremity of a temperature probe to a sufficient depth until an initial temperature reading of at least 850.degree. C. is measured, then maintaining the immersion of the probe, in said electrolyte for a length of time which is less than the time taken to establish the thermal equilibrium of the probe in the electrolyte, (b) withdrawing the probe and determining a temperature of the electrolyte by extrapolation of the temperature values measured by the probe, (c) measurement of the level of electrolyte in the cell by moving the lower extremity of the probe into contact with the electrolyte while recording potential signals between the cathodic substrate and the probe, and recording position signals corresponding to the position of the probe, and (d) determining the level of the electrolyte by comparison of recorded potential and position signals.
摘要翻译：用于通过电解氧化铝来测量用于生产铝的电池中的熔融电解槽的温度和电解质水平的方法包括以下步骤：（a）用地壳破碎机刺穿固化浴的外壳并浸入电解液中，测量温度探针的极端至足够的深度，直到测量至少850℃的初始温度读数，然后将探针浸没在所述电解质中的时间长度小于建立所述时间所需的时间探针在电解质中的热平衡，（b）取出探针并通过推测由探针测量的温度值来确定电解质的温度，（c）通过移动下肢来测量细胞中的电解质水平的探针与电解质接触，同时在阴极基底和探针之间记录潜在信号，并记录与th相对应的位置信号 e位置;（d）通过比较记录的电位和位置信号来确定电解质的水平。

8. 发明授权

US5955673A Cathode sputtering targets selected by ultrasonic inspection for their low level of particle emission 失效
标题翻译：通过超声波检查选择的阴极溅射靶，因为其低水平的颗粒物排放
公开(公告)号：US5955673A
公开(公告)日：1999-09-21
申请号：US631365
申请日：1996-04-12
申请人： Michel Leroy , Jean Muller
发明人： Michel Leroy , Jean Muller
IPC分类号： G01N29/04 , C23C14/34 , C23C14/54 , C23F4/00 , G01N29/11 , G01N29/30 , G01N29/10
CPC分类号： C23C14/3414 , G01N29/11 , G01N29/30 , G01N2291/015 , G01N2291/0231 , G01N2291/0237 , G01N2291/0289 , G01N2291/044 , G01N2291/101 , G01N2291/2697
摘要： A process using ultrasonic inspection for testing the internal soundness of cathode sputtering targets, whose active part is made of aluminum with a very high degree of purity or a very pure aluminum alloy, consisting, after selection of an ultrasound sensor functioning at an operating frequency greater than 5 MHz, preferably between 10 and 50 MHz, and adjusting the appropriate measurement sequence, using a target immersed in a liquid and which has ceratin artificial defects simulating decohesions in the target, taking a count in terms of size and number of the internal decohesions per unit volume and selecting, for the applications requiring a very high degree of etching fineness, the targets with a decohesion density of .ltoreq.0.1 decohesion larger than 0.1 mm/cm.sup.3 of active metal of the target, and cathode sputtering targets selected according to the process having no more than 0.1 internal decohesion larger than 0.1 mm/cm.sup.3 of active metal of the target.
摘要翻译：一种使用超声波检查的方法来测试阴极溅射靶的内部健全性，其活性部分由具有非常高纯度的铝或非常纯的铝合金制成，其包括在选择工作频率更高的超声波传感器之后优选在10MHz和50MHz之间，并且使用浸没在液体中的目标调整适当的测量序列，并且具有模拟目标中的解吸度的人造缺陷，以内部解嵌入的大小和数量计数并且对于需要非常高的蚀刻细度的应用，选择具有大于0.1mm / cm 3的解吸密度大于目标靶的活性金属的解吸密度的靶和根据该过程具有不超过0.1的内部去粘度大于靶的活性金属的0.1mm / cm 3。

9. 发明授权

US5882499A Process for regulating the temperature of the bath of an electrolytic pot for the production of aluminium 失效
标题翻译：用于调节用于生产铝的电解槽的浴的温度的方法
公开(公告)号：US5882499A
公开(公告)日：1999-03-16
申请号：US933057
申请日：1997-09-18
申请人： Olivier Bonnardel , Pierre Homsi
发明人： Olivier Bonnardel , Pierre Homsi
IPC分类号： C25C3/20 , C25C3/06
CPC分类号： C25C3/20
摘要： The process according to the invention solves the problem of the individual thermal regulation of electrolytic pots. It involves acting on the temperature of the pot by means of the setpoint resistance Ro which is modulated so as to correct the temperature both by anticipation and by reversed feedback. On the one hand, correction by anticipation, known as "a priori" correction allows for known, quantified disturbances and allows their effect on the temperature of the pot to be compensated in advance. On the other hand, reversed feedback correction, known as "a posteriori" correction, involves determining, from direct measurement at regular time intervals of the temperature of the electrolytic bath, a mean temperature corrected as a function of periodic operating procedures and allows the variations and deviations from the setpoint temperature to be compensated. The corrections are made by regular adjustment of a positive or negative so-called additional resistance value which is added to the setpoint resistance Ro of the pot. Correction reversed feedback preferably acts in such a way that, if the corrected mean temperature of the bath is lower than the setpoint temperature, this additional resistance is consequently increased, if the corrected mean temperature of the bath is falling, this additional resistance is also consequently increased, if this corrected mean temperature is higher than the set point temperature, this additional resistance is consequently reduced and if this corrected mean temperature is rising, this additional resistance is also consequently reduced.
摘要翻译：根据本发明的方法解决了电解槽单独热调节的问题。它涉及通过设定点电阻Ro对锅的温度作用，该设定点电阻Ro被调制以便通过预期和反向反馈来校正温度。一方面，通过预期校正，被称为“先验”校正允许已知的量化的干扰，并且允许它们预先对待锅补偿的温度的影响。另一方面，称为“后验”校正的反向反馈校正涉及从以电解槽温度的规则时间间隔的直接测量确定作为周期性操作程序的函数校正的平均温度，并允许变化以及与要补偿的设定点温度的偏差。通过定期调整正或负的所谓附加电阻值进行校正，该值被加到电位器的设定点电阻Ro。校正反向反馈优选地以这样的方式起作用，即如果浴的校正平均温度低于设定点温度，则该附加电阻因此增加，如果浴的校正平均温度下降，则该附加电阻也因此如果该校正平均温度高于设定点温度，则该附加电阻因此降低，并且如果该校正平均温度升高，则该附加电阻也因此降低。

10. 发明授权

US5879478A Process for semi-solid forming of thixotropic aluminum-silicon-copper alloy 失效
标题翻译：触变铝硅铜合金的半固体成型工艺
公开(公告)号：US5879478A
公开(公告)日：1999-03-09
申请号：US806399
申请日：1997-02-26
申请人： Willem Loue , Michel Garat
发明人： Willem Loue , Michel Garat
IPC分类号： B22D11/00 , B22D17/00 , C22C1/00 , C22C1/02 , C22C21/02 , C22C21/04 , C22C21/00
CPC分类号： C22C1/005 , C22C21/04
摘要： The invention relates to an aluminum alloy for thixoforming with the composition (by weight): Si: 5%-7.2% Cu: 1%-5% Mg
摘要翻译：本发明涉及一种组合物（按重量计）触变成形的铝合金：Si：5％-7.2％Cu：1％-5％Mg <1％Zn <3％Fe <1.5％其他元素各为1％总共<3％，％Si <7.5-％Cu / 3，当再次加热到半固体状态至达到35％和55％之间的液体馏分比率时，不存在非重熔多面体硅晶体。

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