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公开(公告)号：US4377414A
公开(公告)日：1983-03-22
申请号：US184069
申请日：1980-09-04
CPC分类号： C04B18/062 , C04B18/021 , Y02W30/92 , Y10S588/901
摘要： Strong dense shaped articles such as pellets suitable for use as gravel substitutes are produced by the described method from solid fly ash-containing water materials obtained by a lime based dry scrubbing flue gas desulfurization operation. In this method the dry ash-containing waste powder, which also contains calcium sulfite or sulfate reaction products and unreacted lime, is first uniformly contacted with a critical amount of water and then immediately compacted at a critical compaction ratio to provide a handleable green body in which the fly ash particles are positioned with respect to one another so that the interstitial spaces are sufficient to accommodate the volumetric changes in wthe cementitious materials without any deleterious expansion of the article as the article is cured.
摘要翻译： 通过所述方法，通过石灰基洗涤烟气脱硫操作获得的含固体含飞灰的水性物质，制备适合用作砾石替代物的稠密成形制品。 在该方法中，还含有亚硫酸钙或硫酸盐反应产物和未反应的石灰的含干灰渣的废粉末首先与临界量的水均匀接触，然后以临界压实比立即压实，以提供可处理的生坯 其中飞灰颗粒相对于彼此定位，使得间隙空间足以适应胶结材料的体积变化，而在制品固化时物品没有任何有害的膨胀。
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公开(公告)号：US4354876A
公开(公告)日：1982-10-19
申请号：US191065
申请日：1980-09-26
申请人： William C. Webster
发明人： William C. Webster
CPC分类号： C04B18/08 , C04B18/06 , Y02W30/92 , Y10S588/901
摘要： Cured compacted products suitable for use as landfill materials, embankments, roadbase compositions and the like are produced by the described method from fly ash-containing waste materials obtained by a lime based dry scrubbing flue gas desulfurization operation. In this method the dry fly ash-containing waste powder, which also contains calcium sulfite or sulfate reaction products and unreacted lime, is contacted with a predetermined amount of water and mixed under critical mixing conditions to provide a powder/water mixture which is placed at a suitable utilization site, e.g., a landfill disposal site, and compacted under sufficient load to achieve at least about 70% of the laboratory dry density. The resulting products have compressive strengths after curing of at least about 25 psi and permeabilities of less than 1.times.10.sup.-5 cm/sec.
摘要翻译： 通过所述方法，由通过石灰基洗涤烟气脱硫操作获得的含有飞灰的废料制备适用于填埋材料，路堤，路基组合物等的固化压实产品。 在该方法中，将含有亚硫酸钙或硫酸盐反应产物和未反应的石灰的含干粉煤灰的废粉与预定量的水接触，并在临界混合条件下混合以提供粉末/水混合物，将其置于 一个合适的利用场所，例如垃圾填埋处理场，并在足够的压力下压实，达到实验室干密度的至少约70％。 所得产品在固化后具有至少约25psi的压缩强度和小于1×10-5cm / sec的渗透性。
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3.发明授权
公开(公告)号：US5584792A
公开(公告)日：1996-12-17
申请号：US370803
申请日：1995-01-10
申请人： William C. Webster
发明人： William C. Webster
CPC分类号： C02F11/008 , C04B28/021 , Y02W30/92 , Y02W30/96 , Y10S106/01
摘要： A method for stabilizing wet, oily petroleum refinery wastes and other similar wastes without the need for Portland cement. The waste is combined with at least 5 weight percent of a novel cementitious reagent composition comprised of Powder River Basin fly ash and circulating fluid bed combustion ash in weight ratios ranging from 1:9 to 9:1.
摘要翻译： 稳定湿，油性炼油厂废物和其他类似废物的方法，无需波特兰水泥。 该废物与至少5重量％的由Powder River Basin飞灰和循环流化床燃烧灰组成的新型水泥质试剂组合物的重量比为1:9至9:1的重量比组合。
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4.发明授权Highly activated mixtures for constructing load bearing surfaces and method of making the same 失效用于构造承载表面的高活性混合物及其制备方法
公开(公告)号：US4018619A
公开(公告)日：1977-04-19
申请号：US651457
申请日：1976-01-22
CPC分类号： C04B28/18 , Y02W30/92 , Y10S106/01
摘要： Improved cementitious composition results from a process comprised of mechanical size reduction and activation of a mixture of lime and fly ash and the addition thereto of fly ash and aggregate, as needed, to make a mix of the desired proportions. A quicker and more complete reaction between the lime and fly ash results from deagglomeration of lime particles caused by interaction with the fly ash and/or by the increased availability of reactant materials due to particle size reduction of both the lime and the fly ash. The mechanical size reduction and activation process may be carried out, for example, in a ball mill or centrifugal impact mill.
摘要翻译： 改进的水泥组合物由包括机械尺寸减小和石灰和飞灰的混合物的活化以及根据需要添加到其中的粉煤灰和骨料的方法产生，以制备所需比例的混合物。 石灰和飞灰之间的更快和更完整的反应是由于与飞灰的相互作用引起的石灰颗粒的解聚和/或由于石灰和飞灰的粒径减小而引起的反应物材料的可用性增加。 机械尺寸的还原和活化过程可以在例如球磨机或离心式冲击式研磨机中进行。
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公开(公告)号：US4153655A
公开(公告)日：1979-05-08
申请号：US708200
申请日：1976-07-23
CPC分类号： C21B3/04 , B03B9/04 , C04B7/26 , C22B1/005 , Y02P10/212 , Y02P40/145 , Y02W30/542
摘要： Methods of making finely divided product from fly ash compositions, including both dry fly ash compositions and aqueous suspensions of fly ash in combination with alkaline earth metal compounds. The fly ash composition, preferably including 10 to 50% combined alkaline earth metal oxides, is heated to molten condition while collecting gases evolving therefrom, including sulfur oxide gases. The top portion of the melt is then poured in a manner causing a molten stream thereof to be divided into a multiplicity of fractions and cooled to solid form while encompassed by a fluid cooling medium in a manner to produce either a shot or a granulated aggregate product. The bottom portion of the melt is nearly pure metallic iron which is recovered, as such, for other uses. Preferably, the molten stream impinges on a rotating member in a manner to produce shot, or is quenched in a water bath to form a granulated type product.
摘要翻译： 从粉煤灰组合物制备细分产物的方法，包括干粉煤灰组合物和粉煤灰与碱土金属化合物组合的水悬浮液。 优选地包括10-50％组合的碱土金属氧化物的飞灰组合物在收集从其中逸出的气体（包括硫氧化物气体）的同时被加热到熔融状态。 然后以使得其熔融流分为多个级分并冷却至固体形式同时被流体冷却介质包围的方式倒入熔体的顶部，以产生射流或粒化聚集体产物 。 熔体的底部是几乎纯的金属铁，其被回收，用于其它用途。 优选地，熔融流以产生喷射的方式撞击在旋转构件上，或者在水浴中淬火以形成造粒型产品。
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公开(公告)号：US4028130A
公开(公告)日：1977-06-07
申请号：US524148
申请日：1974-11-15
CPC分类号： E01C3/04 , C02F11/008 , C04B18/0418 , C04B28/021 , C04B28/18 , Y02W30/91 , Y02W30/92 , Y02W30/95 , Y10S106/01
摘要： Digested sewage sludge resulting from sewage plant treatment of municipal sewage is disposed of and used in an ecologically acceptable manner by the incorporation of such sludge in hardenable compositions further including, for example, lime, fly ash and, in some cases, alkaline earth metal sulfates and/or soil or other inert or complimentary additives. These hardenable compositions may be emplaced in an area open to the atmosphere and permitted to cure over a period of time to act as land fill or as road base materials.
摘要翻译： 污水处理城市污水产生的消化污水污泥是以生态可接受的方式处理和使用，通过将这种污泥并入可硬化的组合物中，其进一步包括例如石灰，飞灰和在一些情况下，碱土金属硫酸盐 和/或土壤或其它惰性或补充添加剂。 这些可硬化的组合物可以放置在大气开放的区域中并允许在一段时间内固化以充当填土或用作路基材料。
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公开(公告)号：US5877393A
公开(公告)日：1999-03-02
申请号：US892465
申请日：1997-07-14
申请人： William C. Webster
发明人： William C. Webster
IPC分类号： A62D3/00 , A62D3/33 , A62D3/36 , A62D101/08 , A62D101/24 , A62D101/43
CPC分类号： A62D3/33 , A62D2101/08 , A62D2101/24 , A62D2101/43
摘要： A process for treating contaminated waste to stabilize environmentally harmful heavy metals. The waste is contacted with a mixture of a sulfide, preferably calcium sulfide, an inorganic phosphate, which prevents oxidation of sulfide, and a base that at least includes calcium hydroxide. The process stabilizes harmful, heavy metal materials in the waste but avoids the prior art disadvantage of emitting hydrogen sulfide.
摘要翻译： 处理污染废物以稳定对环境有害的重金属的过程。 废物与硫化物，优选硫化钙，防止硫化物氧化的无机磷酸盐和至少包括氢氧化钙的碱的混合物接触。 该方法稳定了废物中的有害的重金属材料，但是避免了现有技术中排放硫化氢的缺点。
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公开(公告)号：US4259271A
公开(公告)日：1981-03-31
申请号：US36156
申请日：1979-05-04
CPC分类号： B22F9/10 , B01J2/04 , C03B19/1015
摘要： Improved method for making generally spherical particulate shot-like product comprising permitting a siliceous-aluminous composition of specified characteristics onto a rotating squirrel cage rotor near top dead center thereof and causing said impinging molten material to be projected in droplet form and cooled while suspended in a gaseous cooling medium, such as air, into an amorphous generally spherical product, suitable for use as an abrasive or filler material.
摘要翻译： 用于制备通常为球形的颗粒状射状产品的改进方法包括将具有特定特征的硅质铝组合物在其上死点附近旋转的鼠笼式转子上，并使所述冲击熔融材料以液滴形式投影并在悬浮在 气态冷却介质，例如空气，成为无定形的大致球形产品，适合用作磨料或填料。
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9.再颁专利Process for treating aqueous chemical waste sludges and compositions produced thereby 失效用于处理含水化学废物淤泥及由此生产的组合物的方法
公开(公告)号：USRE29783E
公开(公告)日：1978-09-26
申请号：US766796
申请日：1977-02-08
CPC分类号： C04B28/065 , C02F1/66 , C02F11/008
摘要： Waste sludges containing small amounts of certain types of reactive materials are treated by adding to such sludges materials capable of producing aluminum ions, lime and/or sulfate bearing compounds to produce a composition having a sufficient concentration of sulfate ions, aluminum ions and equivalents thereof, and calcium ions and equivalents thereof. Fly ash is preferred source of aluminum ions for this purpose. Over a period of time such compositions harden by the formation of calcium sulfo-aluminate hydrates. Hardening of the sludge facilitates its disposition and may permit the reclamation of the land now occupied by large settling ponds for such sludge. Still further, the solidification of such settling ponds may provide permanent land fill which permits immediate use of the land without the necessity for removal of the sludge. Aggregate materials may also be incorporated in the solidified waste.
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