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公开(公告)号：US4023938A
公开(公告)日：1977-05-17
申请号：US568341
申请日：1975-04-15
申请人： Hans Guth , Gerhard Jonas , Klaus Kleine-Weischede , Hermann Wieschen , Hans-Joachim Kaiser , Karl-Heinz Dorr , Hugo Grimm
发明人： Hans Guth , Gerhard Jonas , Klaus Kleine-Weischede , Hermann Wieschen , Hans-Joachim Kaiser , Karl-Heinz Dorr , Hugo Grimm
CPC分类号： B01D53/263 , B01D1/007 , B01D53/14 , B01D53/1406 , B01D53/18 , C01B17/56
摘要： In the removal of water from a gas by contact with sulfuric acid, the improvement which comprises supplying the sulfuric acid in finely divided form having a surface of about 10.sup.4 to 10.sup.7 m.sup.2 /h at a concentration of about 95 to 99% and a temperature of about 35.degree. to 80.degree. C and with a contact time of about 0.2 to 2 seconds, whereby the residual moisture content of the gas is reduced to about 30 to 250 mg of H.sub.2 O/Nm.sup.3. Preferably the sulfuric acid is sprayed through a constriction into a vessel through which the gas is passed. The large sulfuric acid surface area permits high levels of dehydration to be achieved with far less sulfuric acid than heretofore believed possible and with small vessels and minimal contact times. Contact may be effected serially in several stages with the spent acids combined, brought up to initial concentration and recirculated.
摘要翻译： 在通过与硫酸接触从气体除去水时，其改进包括以约95至99％的浓度提供具有约104至107m 2 / h表面的细碎形式的硫酸和温度 约35℃至80℃，接触时间约0.2至2秒，从而将气体的残留水分降低至约30至250mg的H 2 O / Nm 3。 优选地，硫酸通过收缩部喷射到气体通过的容器中。 大的硫酸表面积允许以比迄今所认为可能的少得多的硫酸和小容器和最小的接触时间来实现高水平的脱水。 接触可以在几个阶段中连续进行，废酸组合，达到初始浓度并再循环。
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公开(公告)号：US3933575A
公开(公告)日：1976-01-20
申请号：US442937
申请日：1974-02-15
CPC分类号： B01D1/065 , B01D1/00 , B01D1/10 , C01B17/88 , Y10S159/13 , Y10S159/15 , Y10S159/19 , Y10S159/32
摘要： In the processing of a corrosive liquid mixture, such as 50 to 80% aqueous sulfuric acid, by its passage over one surface of a wall of inert heat resistant material, and heating the other surface of said wall, thereby to evaporate from said corrosive liquid mixture the more volatile component thereof, the improvement which comprises heating said wall by contact with an inert liquid material, and heating said inert liquid material indirectly through heat exchange with a normally solid molten material. Desirably the wall of inert material is a pipe surrounded by a molten metal in a first annular jacket and a molten salt in a second annular jacket.
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公开(公告)号：US4014735A
公开(公告)日：1977-03-29
申请号：US605365
申请日：1975-08-15
CPC分类号： B01D1/065 , B01D1/00 , B01D1/10 , C01B17/88 , Y10S159/13 , Y10S159/15 , Y10S159/19 , Y10S159/32
摘要： In the processing of a corrosive liquid mixture, such as 50 to 80% aqueous sulfuric acid, by its passage over one surface of a wall of inert heat resistant material, and heating the other surface of said wall, thereby to evaporate from said corrosive liquid mixture the more volatile component thereof, the improvement which comprises heating said wall by contact with an inert liquid material, and heating said inert liquid material indirectly through heat exchange with a normally solid molten material. Desirably the wall of inert material is a pipe surrounded by a molten metal in a first annular jacket and a molten salt in a second annular jacket.
摘要翻译： 在腐蚀性液体混合物如50-80％硫酸水溶液的加工中，通过其在惰性耐热材料的壁的一个表面上通过并加热所述壁的另一个表面，从而从所述腐蚀性液体中蒸发 混合其挥发性较高的组分，其改进包括通过与惰性液体材料接触来加热所述壁，并通过与常规固体熔融材料的热交换间接加热所述惰性液体材料。 理想地，惰性材料的壁是由第一环形护套中的熔融金属围绕的管和在第二环形护套中的熔融盐。
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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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公开(公告)号：US4153628A
公开(公告)日：1979-05-08
申请号：US836465
申请日：1977-09-26
申请人： Rudolf Gerken , Hans Guth , Christoph Mucke , Willi Potes , Hermann Wieschen
发明人： Rudolf Gerken , Hans Guth , Christoph Mucke , Willi Potes , Hermann Wieschen
CPC分类号： C01B17/58 , C01B17/775 , Y10S423/02
摘要： Spent sulphuric acid, either alongside or mixed with contaminated metal salts such as iron sulphate heptahydrate, is regenerated to fresh acid by countercurrent contact with gases from cleavage of the sulphate salts, such gases containing SO.sub.3 which effects build up of the acid concentration. The built up acid is evaporated in another stage to obtain pure acid. The metal sulphate solids are subjected to high temperature cleavage, generating SO.sub.3 which effects the previous concentration. Cleavage also produces some SO.sub.2 which is converted to SO.sub.3 by wet catalysis.
摘要翻译： 与受污染的金属盐（如七水硫酸铁）一起或与其混合的硫酸可以通过与硫酸盐裂解的气体逆流接触而再生成新鲜的酸，这些气体含有SO 3，从而产生酸浓度。 在另一个阶段将积聚的酸蒸发得到纯酸。 金属硫酸盐固体经受高温裂解，产生影响先前浓度的SO 3。 裂解还产生一些SO2，其通过湿催化转化为SO 3。
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公开(公告)号：US4057075A
公开(公告)日：1977-11-08
申请号：US656478
申请日：1976-02-09
CPC分类号： B01D45/16 , B01D45/08 , F23J11/00 , Y10T137/3003
摘要： This invention relates to an arrangement for separating for films, droplets and sprays from pipe-borne gas flows wherein a pipe is provided with a cross-sectional constriction adapted to accelerate the gas flow in the pipe and annular stripping slot having an annular baffle surface and communicating with a collecting trap, the annular baffle surface being adapted to receive the liquid-containing gas flow and to cause the flow to pass into the collecting trap.
摘要翻译： 本发明涉及一种用于从管道气流中分离膜，液滴和喷雾的装置，其中管道设置有横截面收缩部，其适于加速管道中的气体流动和具有环形挡板表面的环形剥离槽， 与收集阱相通，所述环形挡板表面适于接纳含液体的气流并使流动进入收集阱。
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