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1. 发明授权

US6142309A Method of determining the amount of residue in carbon black 失效
标题翻译：确定炭黑中残留物量的方法
公开(公告)号：US6142309A
公开(公告)日：2000-11-07
申请号：US185718
申请日：1998-11-04
申请人： James R. Wilson , Achille Bucci , Maurizio Lucchi , Angela G. Kimball
发明人： James R. Wilson , Achille Bucci , Maurizio Lucchi , Angela G. Kimball
IPC分类号： G01N15/00 , G01N15/02 , B03B7/00
CPC分类号： G01N15/02 , G01N2015/0046
摘要： Test methods are provided for determining the amount of contaminants in a carbon black sample. The test procedures include screening a known amount of carbon black to separate larger particles in the sample from smaller particles. The sample and/or separated larger particles are treated with a separating force to disperse larger agglomerates of carbon black into smaller aggregates of carbon black and to separate contaminants from carbon black aggregates. The treated sample or separated larger particles can then be screened to again separate larger particles from smaller particles. The separating force may be a water wash stream which contacts the sample or separated larger particles at a pressure of from about 15 psi to about 35 psi. The separating force may instead or additionally be generated by a dispersing agent which can be combined with the sample or separated larger particles in an amount or concentration sufficient to disperse larger agglomerates of carbon black into smaller carbon black aggregates. The measured weight of the separated contaminants and the measured weight of the carbon black sample can be used to determine the weight percent of certain contaminants in the carbon black sample.
摘要翻译：提供测试方法来确定炭黑样品中污染物的量。测试程序包括筛选已知量的炭黑以将样品中的较大颗粒与较小颗粒分离。用分离力处理样品和/或分离的较大颗粒以将较大的炭黑附聚物分散成较小的炭黑聚集体，并将污染物与炭黑聚集体分离。然后可以将经处理的样品或分离的较大颗粒进行筛选，以再次从较小颗粒分离更大的颗粒。分离力可以是在约15psi至约35psi的压力下接触样品或分离的较大颗粒的水洗流。分离力可以替代地或另外由分散剂产生，分散剂可以与样品或分离的较大的颗粒结合，其量或浓度足以将较大的炭黑附聚物分散到较小的炭黑聚集体中。分离的污染物的测量重量和炭黑样品的测量重量可用于确定炭黑样品中某些污染物的重量百分数。

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