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1.发明授权Process for obtaining metal oxide and SO.sub.2 -containing gases essentially free of SO.sub.3 and H.sub.2 SO.sub.4 from ferrous sulphate containing salt 失效用于从含硫酸亚铁盐获得基本上不含SO 3和H 2 SO 4的金属氧化物和含SO 2的气体的方法
公开(公告)号：US4304759A
公开(公告)日：1981-12-08
申请号：US145561
申请日：1980-05-01
申请人： Georg Daradimos , Martin Hirsch , Lothar Reh , Jorg Thomas
发明人： Georg Daradimos , Martin Hirsch , Lothar Reh , Jorg Thomas
CPC分类号： C01G49/02 , Y10S423/02
摘要： The invention provides a process for thermally decomposing salts, containing mainly ferrous sulfate wherein said feed material is contacted in a single suspension-type exchanger with exhaust gases formed by reaction of the oxygen-containing gases in the fluidized bed reactor, the fluidizing gas and at least a partial stream of the secondary gas stream are heated by an indirect heat exchange in a fuel-heated heat exchanger, and the quantity of oxygen introduced via which consists of the fluidizing gas and the secondary gas, is controlled in dependence on the quantity of fuel in order to receive an exhaust gas from the suspension-type exchanger with a free oxygen content of 1-6% by volume and a temperature of 300.degree.-450.degree. C.
摘要翻译： 本发明提供了一种热分解盐的方法，其主要含有硫酸亚铁，其中所述进料在单一悬浮式交换器中与通过流化床反应器中的含氧气体，流化气体和 通过在燃料加热的热交换器中的间接热交换来加热第二气流的至少一部分流，并且通过流化气体和二次气体构成的氧气的量根据量 燃料，以从游离氧含量为1-6体积％，温度为300-450℃的悬浮型交换器中接收废气。
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公开(公告)号：US4676824A
公开(公告)日：1987-06-30
申请号：US761017
申请日：1985-07-31
申请人： Georg Daradimos , Martin Hirsch , Wolfram Schnabel
发明人： Georg Daradimos , Martin Hirsch , Wolfram Schnabel
CPC分类号： F23C10/26 , C21B13/08 , F22B31/003 , F22B31/0084 , F23C10/10 , F23G5/30 , F27B19/04 , F27B7/00 , F27D17/004 , F23C2206/101 , F23G2206/203 , F23G2209/14 , Y02E20/12 , Y02P10/136 , Y02P10/212 , Y02P10/265 , Y02P10/283 , Y02P10/34
摘要： Sponge iron is produced by a direct reduction of iron oxide containing materials in a rotary kiln, the material discharged from the rotary kiln is separated into sponge iron and material which contains surplus carbon, the carbon-containing material is burnt in a fluidized bed reactor containing a circulating fluidized bed, and the heat generated by the combustion is recovered and utilized to produce electric power. To ensure a utilization of the surplus energies of the rotary kiln process and to minimize the contents of SO.sub.2, NO.sub.X, and CaS, the dust-containing exhaust gas from the rotary kiln is supplied to the fluidized bed reactor and is afterburnt therein, at least a major part of all oxygen-containing gases supplied to the fluidized bed reactor is supplied as a fluidizing gas to the lower portion of the fluidized bed reactor, the combustion of the combustible constituents is effected with an over-stoichiometric oxygen content, and the solids entrained by the gases discharged from the fluidized bed reactor are recycled to the fluidized bed reactor in such a manner that the weight of solids circulated per hour is at least 5 times the weight of the solids contained in the fluidized bed reactor.
摘要翻译： 通过在回转窑中直接还原含氧化铁的材料制造海绵铁，将从回转窑排出的材料分离成海绵铁和含有多余碳的材料，含碳材料在含有 循环流化床，并且回收利用燃烧产生的热量来产生电力。 为了确保利用回转窑工艺的剩余能量并使SO2，NOX和CaS的含量最小化，来自回转窑的含尘废气被提供给流化床反应器，并在其中被燃烧至少 供应到流化床反应器的所有含氧气体的主要部分作为流化气体供应到流化床反应器的下部，可燃组分的燃烧以超过化学计量的氧含量进行，并且固体 由流化床反应器排出的气体夹带的循环方式使得每小时循环的固体重量至少为流化床反应器中所含固体重量的5倍。
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3.发明授权
公开(公告)号：US4444568A
公开(公告)日：1984-04-24
申请号：US362266
申请日：1982-03-26
CPC分类号： C10J3/84 , C10J3/463 , C10J3/54 , C10J3/721 , C10J3/86 , C10K1/004 , C10K1/026 , C10K1/08 , F23C10/005 , F23C10/10 , C10J2300/0959 , C10J2300/1807 , C10J2300/1884 , F23C2206/101
摘要： In a process of simultaneously producing fuel gas and process heat from carbonaceous materials wherein the carbonaceous materials are gasified in a first fluidized bed stage and the combustible constituents left after the gasification are subsequently burnt in a second fluidized bed stage the throughput rate and the flexibility are increased in that the gasification is carried out at a pressure of up to 5 bars and a temperature of 800.degree. to 1100.degree. C. by a treatment with oxygen-containing gases in the presence of steam in a circulating fluidized bed and 40 to 80% of the carbon contained in the starting material are thus reacted. Sulfur compounds are removed from the resulting gas in a fluidized state at a temperature in the range from 800.degree. to 1000.degree. C. and the gas is then cooled and subjected to dust collection. The gasification residue together with the by-products which have become available in the purification of the gas, such as laden desulfurizing agent, dust and aqueous condensate, are fed to another circulating fluidized bed and the remaining combustible constituents are burnt there with an oxygen excess of 5 to 40%.
摘要翻译： 在同时生产燃料气体和来自含碳材料的工艺热的过程中，其中碳质材料在第一流化床阶段气化，并且在气化之后留下的可燃组分随后在第二流化床阶段中燃烧，生产率和柔性是 增加了在循环流化床中在蒸汽存在下用含氧气体处理，在高达5巴的压力和800至1100℃的温度下进行气化，并且40-80％ 的原料中所含的碳因此反应。 在800〜1000℃的温度下，以流化状态从所得气体中除去硫化合物，然后将气体冷却并进行集尘。 将气化残余物与在净化气体中可获得的副产物（如负载脱硫剂，灰尘和含水冷凝物）一起进料到另一个循环流化床中，剩余的可燃成分在那里燃烧，过氧 为5〜40％。
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公开(公告)号：US4163047A
公开(公告)日：1979-07-31
申请号：US811798
申请日：1977-06-30
申请人： Karl-Heinz Dorr , Georg Daradimos , Hugo Grimm , Georg Schmidt , Rudolf Gerken , Christoph Mucke , Hermann Wieschen
发明人： Karl-Heinz Dorr , Georg Daradimos , Hugo Grimm , Georg Schmidt , Rudolf Gerken , Christoph Mucke , Hermann Wieschen
CPC分类号： C01B17/901 , Y10S423/02
摘要： A process for the recovery of sulfuric acid from waste sulfuric acid containing iron sulfate and from solid iron sulfate of high water content of crystallization which consists essentially of:A. concentrating waste sulfuric acid to an acid concentration of 25-55 weight percent, based upon the suspension, by removing water therefrom;B. mixing the concentrated acid of Step A with recycled concentrated sulfuric acid obtained from Step E to form a resultant acid mixture of acid concentration of 30-65 weight percent, based upon the suspension;C. adding said solid iron sulfate of high water content of crystallization to the acid mixture of Step B thereby obtaining iron sulfate of low water content of crystallization;D. separating the iron sulfate of low water content from the resultant sulfuric acid solution of Step C;E. concentrating the separated sulfuric acid solution of Step D to an acid concentration of 45-70 weight percent, based on salt-free acid, and recycling at least a portion thereof to Step B; andF. thermally decomposing the iron sulfate from Step D to produce iron oxide and sulfur dioxide.
摘要翻译： 一种从含硫酸铁的废硫酸和硫酸高固含量的硫酸中回收硫酸的方法，该方法主要包括：
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