公开(公告)号：US20090181848A1

公开(公告)日：2009-07-16

申请号：US12408489

申请日：2009-03-20

申请人： Peter E. Lenz ,  Michael J. Nannini ,  James S. Shui

发明人： Peter E. Lenz ,  Michael J. Nannini ,  James S. Shui

IPC分类号： B01J20/14 ,  B02C23/08 ,  B02C23/00

CPC分类号： B01J20/14 ,  B01D39/06 ,  B01J20/10 ,  B01J20/106

摘要： A method of producing a range of diatomaceous earth blended filter aids having selectable permeabilities and less than about 1 percent by weight total of crystalline silica and less than about 0.1% by weight total of respirable crystalline silica. The method includes milling diatomaceous earth ore to a size range of between about 100 micrometers and about 1400 micrometers; calcining the milled diatomaceous earth in a calciner; milling the calcined diatomaceous earth in an adjustable milling and classification system to produce diatomaceous earth filter aids, and blending the diatomaceous earth with expanded perlite to form a low bulk density and low solubility filter aid.

摘要翻译： 一种生产一系列具有可选择的渗透性并且小于约1重量％的结晶二氧化硅和小于约0.1重量％可呼吸结晶二氧化硅的总共的硅藻土混合的助滤剂的方法。 该方法包括将硅藻土研磨至约100微米至约1400微米的尺寸范围; 在煅烧炉中煅烧磨碎的硅藻土; 在可调式研磨和分级系统中研磨煅烧硅藻土以制备硅藻土助滤剂，并将硅藻土与膨胀珍珠岩混合以形成低堆积密度和低溶解度的助滤剂。

公开(公告)号：US08084392B2

公开(公告)日：2011-12-27

申请号：US12167836

申请日：2008-07-03

申请人： Peter E. Lenz ,  Michael J Nannini ,  James S Shui

发明人： Peter E. Lenz ,  Michael J Nannini ,  James S Shui

IPC分类号： B01J20/14 ,  C01B33/12

CPC分类号： B01J20/14 ,  Y10T428/2982

摘要： A method of producing a range of diatomaceous earth filter aids having selectable permeabilities and less than about 1 percent by weight total crystalline silica. The method includes milling diatomaceous earth ore to a size range of between about 100 micrometers and about 1400 micrometers; calcining the milled diatomaceous earth in a calciner; and milling the calcined diatomaceous earth in an adjustable milling and classification system to produce diatomaceous earth filter aids. Systems to implement such methods and compositions produced by such methods are also described.

摘要翻译： 制备一系列具有可选择的渗透性和小于约1重量％的总结晶二氧化硅的硅藻土助滤剂的方法。 该方法包括将硅藻土研磨至约100微米至约1400微米的尺寸范围; 在煅烧炉中煅烧磨碎的硅藻土; 并在可调研磨和分级系统中研磨煅烧的硅藻土以制备硅藻土助滤剂。 还描述了实现由这些方法生产的这些方法和组合物的系统。

公开(公告)号：US20090011240A1

公开(公告)日：2009-01-08

申请号：US12167836

申请日：2008-07-03

申请人： Peter E. Lenz ,  Michael J. Nannini ,  James S. Shui

发明人： Peter E. Lenz ,  Michael J. Nannini ,  James S. Shui

IPC分类号： B01J20/14 ,  B32B5/16 ,  B02C23/00

CPC分类号： B01J20/14 ,  Y10T428/2982

摘要： A method of producing a range of diatomaceous earth filter aids having selectable permeabilities and less than about 1 percent by weight total crystalline silica. The method includes milling diatomaceous earth ore to a size range of between about 100 micrometers and about 1400 micrometers; calcining the milled diatomaceous earth in a calciner; and milling the calcined diatomaceous earth in an adjustable milling and classification system to produce diatomaceous earth filter aids. Systems to implement such methods and compositions produced by such methods are also described.

摘要翻译： 制备一系列具有可选择的渗透性和小于约1重量％的总结晶二氧化硅的硅藻土助滤剂的方法。 该方法包括将硅藻土研磨至约100微米至约1400微米的尺寸范围; 在煅烧炉中煅烧磨碎的硅藻土; 并在可调研磨和分级系统中研磨煅烧的硅藻土以制备硅藻土助滤剂。 还描述了实现由这些方法生产的这些方法和组合物的系统。

公开(公告)号：US5878374A

公开(公告)日：1999-03-02

申请号：US826890

申请日：1997-04-09

申请人： Thomas A. Buchanan ,  Peter E. Lenz

发明人： Thomas A. Buchanan ,  Peter E. Lenz

IPC分类号： B01D37/02 ,  B01D24/44

CPC分类号： B01D37/02

摘要： A device (10) for automatically determining filtration parameters for a sample of a filter aid material includes a measurement tube assembly (14) comprising a generally vertical measurement tube (34) and a septum (40) disposed within the tube for forming a filter cake of a filter aid material, a plurality of actuatable valves (V1-V12) coupled to the inlet (32) and discharge (44) of the measurement tube assembly for controlling water flow into and out of the assembly, a control and processor system (17) including a computer (200) operable to control the valves in accordance with a predetermined cycle to flush a slurry of filter aid into the measurement tube assembly and then cause water to flow under pressure through the measurement tube assembly and through a filter cake formed on the septum, and instrumentation (110, 120, 122, 130, 140) for measuring parameters needed for determining filtration parameters. The computer receives output signals from the instrumentation and calculates filtration parameters such as permeability and wet bulk density.

摘要翻译： 用于自动确定过滤助剂材料样品的过滤参数的装置（10）包括测量管组件（14），其包括大致垂直的测量管（34）和设置在管内的隔膜（40），用于形成滤饼 过滤辅助材料的多个致动阀（V1-V12），其耦合到测量管组件的入口（32）和排出口（44），用于控制进入和离开组件的水流;控制和处理器系统 17），其包括计算机（200），其可操作以根据预定循环来控制所述阀，以将助滤剂的浆料冲洗到所述测量管组件中，然后使水在压力下通过所述测量管组件并通过形成的滤饼 以及用于测量用于确定过滤参数所需的参数的仪器（110,120,122,130,140）。 计算机从仪器接收输出信号，并计算渗透率和湿堆密度等过滤参数。