公开(公告)号：US20090245588A1

公开(公告)日：2009-10-01

申请号：US12427959

申请日：2009-04-22

申请人： Andrew Vince ,  Bruce Andrew Firth ,  Shenggen Hu

发明人： Andrew Vince ,  Bruce Andrew Firth ,  Shenggen Hu

IPC分类号： G06K9/00

CPC分类号： G01N33/24 ,  G01N15/0211 ,  G01N15/1475 ,  G01N23/12

摘要： An image (100) of particulate material, such as an X-ray image of coal, is captured and processed to determine a parameter of the material, such as particle density or particle size distribution. The performance or efficiency of a processing system, such as a dense medium separator, can be evaluated by determining parameters of the material before entry to and after exit from the processing system. The parameter is determined by comparing image characteristics (relating to statistical features), to a predetermined set of image characteristics. If the image (100) is obtained by transmission of radiation through the material, accuracy can be improved by measuring the thickness of the material.

摘要翻译： 捕获并处理诸如煤的X射线图像的颗粒材料的图像（100），以确定材料的参数，例如颗粒密度或粒度分布。 可以通过在从处理系统退出之前和之后确定材料的参数来评估诸如致密介质分离器之类的处理系统的性能或效率。 该参数通过将图像特性（与统计特征相关）与预定的图像特征集合进行比较来确定。 如果通过材料的辐射透射来获得图像（100），则可以通过测量材料的厚度来提高精度。

公开(公告)号：US06548039B1

公开(公告)日：2003-04-15

申请号：US09503636

申请日：2000-02-14

申请人： Willem P. C. Duyvesteyn ,  Timothy Malcome Spitler ,  Bruce James Sabacky ,  Andrew Vince ,  Jan Prochazka

发明人： Willem P. C. Duyvesteyn ,  Timothy Malcome Spitler ,  Bruce James Sabacky ,  Andrew Vince ,  Jan Prochazka

IPC分类号： C01G23047

CPC分类号： B82Y30/00 ,  C01G23/053 ,  C01G23/0536 ,  C01P2004/03 ,  C01P2004/32 ,  C01P2004/34 ,  C01P2004/62 ,  C01P2004/64 ,  C01P2004/86 ,  C01P2006/12 ,  C09C1/363

摘要： A hydrometallurgical process is provided for producing pigment grade TiO2 from titanium containing solutions. Generally, the solution is an aqueous solution. The process includes hydrolyzing the solution via complete evaporation in well-controlled conditions of temperature to form titanium oxide of well-defined characteristics. The hydrolyzing can be achieved by spray hydrolysis in a spray dryer. After hydrolyzing, the titanium oxide is calcined to transform the titanium oxide to the desired form of titanium dioxide. The titanium dioxide can be either anatase or rutile. Following calcination, the titanium dioxide is milled to provide the desired particle size distribution and then finished.

摘要翻译： 提供了一种用于从含钛溶液中生产颜料级TiO2的湿法冶金工艺。 通常，溶液是水溶液。 该方法包括在良好控制的温度条件下通过完全蒸发水解溶液以形成具有明确特征的氧化钛。 水解可以通过在喷雾干燥器中喷雾水解来实现。 水解后，将氧化钛煅烧以将氧化钛转化成所需形式的二氧化钛。 二氧化钛可以是锐钛矿或金红石。 煅烧后，研磨二氧化钛以提供所需的粒度分布，然后完成。

公开(公告)号：US07542873B2

公开(公告)日：2009-06-02

申请号：US10558126

申请日：2004-05-20

申请人： Andrew Vince ,  Bruce Andrew Firth ,  Shenggen Hu

发明人： Andrew Vince ,  Bruce Andrew Firth ,  Shenggen Hu

IPC分类号： G06F11/30 ,  G21C17/00

CPC分类号： G01N33/24 ,  G01N15/0211 ,  G01N15/1475 ,  G01N23/12

摘要： An image (100) of particulate material, such as an X-ray image of coal, is captured and processed to determine a parameter of the material, such as particle density or particle size distribution. The performance or efficiency of a processing system, such as a dense medium separator, can be evaluated by determining parameters of the material before entry to and after exit from the processing system. The parameter is determined by comparing image characteristics (relating to statistical features), to a predetermined set of image characteristics. If the image (100) is obtained by transmission of radiation through the material, accuracy can be improved by measuring the thickness of the material.

摘要翻译： 捕获并处理诸如煤的X射线图像的颗粒材料的图像（100），以确定材料的参数，例如颗粒密度或粒度分布。 可以通过在从处理系统退出之前和之后确定材料的参数来评估诸如致密介质分离器之类的处理系统的性能或效率。 该参数通过将图像特性（与统计特征相关）与预定的图像特征集合进行比较来确定。 如果通过材料的辐射透射来获得图像（100），则可以通过测量材料的厚度来提高精度。

公开(公告)号：US06375923B1

公开(公告)日：2002-04-23

申请号：US09500207

申请日：2000-02-07

申请人： Willem P. C. Duyvesteyn ,  Bruce James Sabacky ,  Dirk Edmund Victor Verhulst ,  Paul George West-Sells ,  Timothy Malcome Spitler ,  Andrew Vince ,  James R. Burkholder ,  Bernardus Josephus Paulus Maria Huls

发明人： Willem P. C. Duyvesteyn ,  Bruce James Sabacky ,  Dirk Edmund Victor Verhulst ,  Paul George West-Sells ,  Timothy Malcome Spitler ,  Andrew Vince ,  James R. Burkholder ,  Bernardus Josephus Paulus Maria Huls

IPC分类号： C01G23047

CPC分类号： B82Y30/00 ,  C01G23/053 ,  C01G23/0536 ,  C01P2004/03 ,  C01P2004/32 ,  C01P2004/34 ,  C01P2004/62 ,  C01P2004/64 ,  C01P2004/86 ,  C01P2006/12 ,  C09C1/363

摘要： A hydrometallurgical process is provided for producing pigment grade TiO2 from titaniferous mineral ores, and in particular from ilmenite ore. The ore is leached with a hydrochloric acid, preferably a recycled solution at high hydrochloric acid concentration, to form a leachate containing titanium and iron chloride and a residue. The leachate may be filtered to separate the leachate from the residue. The leachate is cooled to a temperature sufficient to form crystals of FeCl2, which are separated from the leachate. The leachate may be subjected to a reduction step to reduce Fe+3 to Fe+2, before crystallizing. The leachate is subjected to a first solvent extraction to form a pregnant strip solution containing titanium and ferric ions and a raffinate containing ferrous ions. This strip solution is subjected to a second solvent extraction to form a second strip solution containing ferric ions and a raffinate containing titanium ions. The first strip solution may be subjected to an oxidization step before the second solvent extraction. The second raffinate containing titanium ions is hydrolyzed. The hydrolysis can be by water addition or spray hydrolysis. Iron chloride is converted to iron oxide and hydrochloric acid. All product streams containing chlorides are recycled, producing gaseous hydrochloric acid that is used for regenerating the leaching solution.

摘要翻译： 提供了一种湿法冶金工艺，用于从钛矿矿石，特别是钛铁矿矿石生产颜料级TiO2。 用盐酸，优选以高盐酸浓度的再循环溶液浸出矿石，以形成含有钛和氯化铁的沥滤液和残渣。 可以将渗滤液过滤以将残留物中的渗滤液分离。 将浸出液冷却至足以形成与浸出液分离的FeCl 2的晶体的温度。 在结晶之前，可以对渗滤液进行还原步骤以将Fe + 3还原成Fe + 2。 对浸出液进行第一次溶剂萃取，形成含有钛和铁离子的含水溶液和含有亚铁离子的萃余液。 将该条状溶液进行第二溶剂萃取以形成含有铁离子的第二条带溶液和含有钛离子的残液。 第一条带溶液可以在第二溶剂萃取之前进行氧化步骤。 含有钛离子的第二残液被水解。 水解可以通过加水或喷雾水解。 将氯化铁转化为氧化铁和盐酸。 所有含有氯化物的产物流被再循环，产生用于再生浸出溶液的气态盐酸。

公开(公告)号：USD600596S1

公开(公告)日：2009-09-22

申请号：US29320491

申请日：2008-06-27

申请人： Andrew Vince Stephen Walters

设计人： Andrew Vince Stephen Walters

公开(公告)号：US20070095168A1

公开(公告)日：2007-05-03

申请号：US10558126

申请日：2004-05-20

申请人： Andrew Vince ,  Bruce Firth ,  Shenggen Hu

发明人： Andrew Vince ,  Bruce Firth ,  Shenggen Hu

IPC分类号： C21B15/00

CPC分类号： G01N33/24 ,  G01N15/0211 ,  G01N15/1475 ,  G01N23/12

摘要： An image (100) of particulate material, such as an X-ray image of coal, is captured and processed to determine a parameter of the material, such as particle density or particle size distribution. The performance or efficiency of a processing system, such as a dense medium separator, can be evaluated by determining parameters of the material before entry to and after exit from the processing system. The parameter is determined by comparing image characteristics (relating to statistical features or the like of the material), to a predetermined set of image characteristics. If the image (100) is obtained by transmission of radiation through the material, accuracy can be improved by measuring the thickness of the material.

摘要翻译： 捕获并处理诸如煤的X射线图像的颗粒材料的图像（100），以确定材料的参数，例如颗粒密度或粒度分布。 可以通过在从处理系统退出之前和之后确定材料的参数来评估诸如致密介质分离器之类的处理系统的性能或效率。 该参数通过将图像特性（与材料的统计特征等相关）与图像特性的预定集合进行比较来确定。 如果通过材料的辐射透射来获得图像（100），则可以通过测量材料的厚度来提高精度。

公开(公告)号：US20060196814A1

公开(公告)日：2006-09-07

申请号：US10541483

申请日：2003-12-24

申请人： Andrew Vince

发明人： Andrew Vince

IPC分类号： B01D35/00

CPC分类号： B03B13/00 ,  B03B9/005 ,  B03B13/005 ,  G01F1/74 ,  G01N9/26 ,  G01N9/36 ,  G01N15/0272

摘要： A method and apparatus for processing particulate material such as coal, and also for measuring the efficiency of separation of the coal is disclosed. Particulate material is supplied to a separator such as a heavy medium device containing a dense medium (6). A parameter of the device (6) indicative of separation cut point is measured. The parameter may be density of the medium, flow rate of material or pressure of feed as well as medium to coal ratio. Measurements of these parameters are made over a time period and, from the measurements, an induced value indicative of separating efficiency is determined. The induced value provides a measure of separation efficiency and also provides a value which can be compared with a predetermined value so that an alarm can be generated if the value departs from the predetermined value by a predetermined amount.

摘要翻译： 公开了一种用于处理诸如煤之类的颗粒材料的方法和装置，并且还用于测量煤的分离效率。 颗粒材料被供应到分离器，例如包含致密介质（6）的重介质装置。 测量表示分离切断点的装置（6）的参数。 参数可以是介质密度，材料流速或进料压力以及中煤比。 在一段时间内进行这些参数的测量，并且从测量结果确定表示分离效率的诱导值。 感应值提供分离效率的测量，并且还提供可与预定值进行比较的值，使得如果该值偏离预定值预定量，则可以产生报警。