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公开(公告)号：US5149439A
公开(公告)日：1992-09-22
申请号：US828111
申请日：1992-01-30
申请人： James D. Birchall
发明人： James D. Birchall
CPC分类号： C02F1/66 , C02F1/688 , Y10S210/911 , Y10T428/2993
摘要： An agent for the treatment of water containing dissolved aluminum comprises a particulate alkali metal or quaternary ammonium silicate, the particles having a coating of a water-insoluble silicate over at least a part of their surface, and a process of treating water which comprises dissolving the agent in the water.
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公开(公告)号：US5053175A
公开(公告)日：1991-10-01
申请号：US441606
申请日：1989-11-27
IPC分类号： C04B35/634 , C04B35/638 , C04B35/80
CPC分类号： C04B35/63416 , C04B35/634 , C04B35/638 , C04B35/80
摘要： A process for the production of a fibre-reinforced ceramic composite by forming a precursor structure comprising a matrix of a composition comprising particulate ceramic material, liquid diluent and organic binder and fibres within the matrix, in which the fibres are formed from a composition comprising particulate ceramic material, liquid diluent and organic binder, and heating the precursor structure in order to evaporate the liquid diluent, decompose the organic binder and sinter the particles of ceramic material in both the matrix and the fibres. Also, a precursor structure as described. The ceramic composite may have a density of 95% or more of the maximum theoretical density.
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公开(公告)号：US4353746A
公开(公告)日：1982-10-12
申请号：US160368
申请日：1980-06-17
摘要： A hydraulic cement characterized by the particle size distribution of the hydraulic cement being multi-modal, preferably bimodal or trimodal, and in which preferably there are present two or more distinct bands or modes of particle sizes and in which the total weight of particles of intermediate size does not exceed 20% of the total weight of the particles in the bands or modes adjacent thereto, and a cement composition comprising the hydraulic cement and not greater than 25% of water by weight of the hydraulic cement.
摘要翻译： 一种水硬性水泥，其特征在于水硬性水泥的粒度分布是多模态的，优选双峰型或三峰型，其中优选地存在两种或更多种不同的粒度的不同的带或模式，其中中间体的颗粒的总重量 尺寸不超过与其相邻的带或模式中的颗粒的总重量的20％，以及包含水硬性水泥并且不大于水硬性水泥重量的25％的水泥组合物的水泥组合物。
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公开(公告)号：US4320074A
公开(公告)日：1982-03-16
申请号：US40314
申请日：1979-05-18
IPC分类号： C04B35/10 , B01D53/86 , B01J21/04 , B01J35/06 , C01F7/02 , C04B35/622 , D01F9/00 , D01F9/08 , B29C6/00 , C04B35/02
CPC分类号： C04B35/62236 , B01D53/864 , B01J35/06 , C04B35/62231 , Y10S264/19
摘要： The process relates to the preparation of a shaped body having at least one dimension less than 100 microns and comprising alumina or an alumina hydrate. An aqueous composition comprising a water-soluble aluminum compound, for example aluminum chloride, sulphate, acetate, formate, propionate, oxalate, phosphate or nitrate and a water-soluble organic polymer is formed into the desired shape. The body so formed is dried, and is subjected to hydrothermal treatment at a temperature of at least 200.degree. C. to decompose the aluminum compound to alumina or an alumina hydrate. The body is optionally further heated subsequent to the hydrothermal treatment.
摘要翻译： 该方法涉及具有至少一个尺寸小于100微米并且包含氧化铝或水合氧化铝的成形体的制备。 包含水溶性铝化合物，例如氯化铝，硫酸盐，乙酸盐，甲酸盐，丙酸盐，草酸盐，磷酸盐或硝酸盐和水溶性有机聚合物的水性组合物形成所需形状。 将如此形成的主体干燥，并在至少200℃的温度下进行水热处理，以将铝化合物分解成氧化铝或氧化铝水合物。 任选地在水热处理之后进一步加热体。
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公开(公告)号：US4159913A
公开(公告)日：1979-07-03
申请号：US803232
申请日：1977-06-03
申请人： James D. Birchall , Roger M. Pybus
发明人： James D. Birchall , Roger M. Pybus
IPC分类号： C08K3/00 , C01B33/18 , C08K3/34 , C08K9/04 , C08L7/00 , C08L21/00 , C08L33/00 , C08L33/02 , C09C1/30 , C09C1/44 , C09C1/28
CPC分类号： C09C1/309 , C08K9/04 , C01P2004/64 , C01P2004/84 , Y10T428/2993
摘要： The deposition of a carbonaceous coating on the surface of a particulate siliceous filler by catalytic thermal decompositon of an organic compound, to improve the value of the said filler in organic polymer compositions, is difficult with some varieties of siliceous filler. The invention is based on the treatment of the initial siliceous filler with a solution of an ammonium salt or a salt of an organic base to displace alkali metal ions, which are believed to inhibit the desired catalytic decomposition. The treatment is carried on to reduce the alkali metal ions (especially sodium) to an acceptably low level, preferably below about 500 ppm. The treatment is especially applicable to precipitated silica fillers.
摘要翻译： 通过有机化合物的催化热分解在有机聚合物组合物中沉积含碳涂层在颗粒状硅质填料的表面上，以改善有机聚合物组合物中所述填料的价值，对于一些各种硅质填料是困难的。 本发明基于用铵盐或有机碱的盐溶液处理初始硅质填料以置换碱金属离子，这被认为可抑制所需的催化分解。 进行处理以将碱金属离子（特别是钠）还原成可接受的低水平，优选低于约500ppm。 该处理特别适用于沉淀二氧化硅填料。
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