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1.发明授权Method for dewatering particle collections controlled by monitoring changing mass 失效通过监测改变质量控制颗粒收集的方法
公开(公告)号：US5167832A
公开(公告)日：1992-12-01
申请号：US642420
申请日：1991-01-17
摘要： The invention relates to a method for dewatering particle collections with the aid of a filter press in a cyclic sequence comprising filling, dewatering and emptying stages. The various stages within each cycle and between consecutive cycles are followed-up and determined by measuring continuously a magnitude which varies with the mass of the press and its contents, preferably the pressure exerted by the press and its contents on the surface supporting the press.
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2.发明授权Method of determining degree of reduction in a sulfate liquor using IR and UV spectroscopy 失效使用IR和UV光谱测定硫酸盐液体还原程度的方法
公开(公告)号：US5582684A
公开(公告)日：1996-12-10
申请号：US256413
申请日：1994-09-29
CPC分类号： G01N21/33 , G01N33/182 , Y10T436/182 , Y10T436/188
摘要： The invention relates to a method of determining the concentration of sulfide and optionally also of polysulfide in liquors and solutions of smelt deriving from the sulfate process. According to the method, the concentrations are determined by measuring the light absorption of the liquor or the solution in the ultra-violet range. According to one preferred embodiment, the method is applied to determine the degree of reduction in sulfate liquor and smelt derived from burning liquor, wherein the concentrations of sulfate, thiosulfate and optionally sulfite and/or carbonate are determined by measuring the light absorption of the liquor or the solution in the infrared range, whereafter the degree of reduction is calculated from the measuring data obtained.
摘要翻译： PCT No.PCT / SE92 / 00850 Sec。 371日期1994年9月29日 102（e）日期1994年9月29日PCT提交1992年12月9日PCT公布。 公开号WO93 / 14390 日期：1993年7月22日本发明涉及一种确定硫酸盐浓度的方法以及任选地还可以从硫酸盐过程产生的熔融物和溶液中的多硫化物的浓度。 根据该方法，通过测量液体或溶液在紫外范围内的光吸收来确定浓度。 根据一个优选实施方案，该方法用于确定来自燃烧液体的硫酸盐液体和熔体的还原程度，其中硫酸盐，硫代硫酸盐和任选的亚硫酸盐和/或碳酸盐的浓度通过测量液体的光吸收来确定 或红外范围内的解决方案，然后根据获得的测量数据计算减少度。
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