公开(公告)号：US5030415A

公开(公告)日：1991-07-09

申请号：US398114

申请日：1989-08-24

申请人： Karl-Heinz Dorr ,  Hermann Muller ,  Ulrich Sander ,  Wolfram Schalk ,  Ernst Wallis

发明人： Karl-Heinz Dorr ,  Hermann Muller ,  Ulrich Sander ,  Wolfram Schalk ,  Ernst Wallis

IPC分类号： C22C38/00 ,  C22C38/26 ,  C22C38/28 ,  C22C38/44 ,  C22C38/48 ,  F28F21/08

CPC分类号： F28F21/082 ,  C22C38/44 ,  C22C38/48

摘要： Ferritic chromium-molybdenum steels containing26 to 30% chromium1.8 to 3.0% molybdenum3.0 to 4.5% nickelcarbon.ltoreq.0.02%silicon.ltoreq.1.00%manganese.ltoreq.1.00%sulfur.ltoreq.0.015%carbon+nitrogen.ltoreq.0.045%niobium.gtoreq.12.times.%C.ltoreq.1.2%balance iron and impurities which are due to the melting technologyare used as corrosion-resisting material to make structural parts which are resistant to sulfuric acid in a concentration of and above 94% by weight and at a temperature up to the boiling point of the sulfuric acid.

摘要翻译： 含有26至30％铬的铁酸铬铬钢1.8至3.0％的钼3.0至4.5％的镍碳= 0.02％的硅 / = 12x％C = 1.2％由于熔化技术而使铁和杂质的平衡被用作耐腐蚀材料，以制造耐硫酸浓度为94以上的结构部件 重量百分比和在高达硫酸沸点的温度下。

公开(公告)号：US4876065A

公开(公告)日：1989-10-24

申请号：US196034

申请日：1988-05-19

申请人： Manfred Rockel ,  Ernst Wallis ,  Michael Kohler ,  Ulrich Heubner ,  Rolf Kirchheiner

发明人： Manfred Rockel ,  Ernst Wallis ,  Michael Kohler ,  Ulrich Heubner ,  Rolf Kirchheiner

IPC分类号： C22C30/00 ,  C22C38/00 ,  C22C38/42 ,  C22C38/44

CPC分类号： C22C38/001 ,  C22C38/42 ,  C22C38/44

摘要： Disclosed in an improvement in a known Ni-Cr-Fe alloy.The alloy of the invention contains 30 to 32% nickel; 26 to 28% chromium; 0.5 to 1.5% copper; 6 to 7% molybdenum; up to 2% manganese; up to 1.0% silicon; up to 0.2% aluminum; up to 0.03% carbon; 0.10 to 0.25% nitrogen; balance iron and usual impurities.The alloy of the invention has increased pitting corrosion potential and critical crevice corrosion and pitting corrosion temperatures whereas the resistance of the alloy to commercially pure phosphoric acid has not been decreased.

摘要翻译： 公开了一种已知的Ni-Cr-Fe合金的改进。 本发明的合金含有30〜32％的镍; 26〜28％铬; 0.5〜1.5％的铜; 6〜7％的钼; 高达2％的锰; 高达1.0％的硅; 高达0.2％的铝; 高达0.03％的碳; 0.10至0.25％氮气; 平衡铁和常规杂质。 本发明的合金具有增加的点腐蚀潜能和临界缝隙腐蚀和点腐蚀温度，而合金对商业纯磷酸的电阻没有降低。

公开(公告)号：US4906437A

公开(公告)日：1990-03-06

申请号：US313622

申请日：1989-02-21

申请人： Ulrich Heubner ,  Michael Kohler ,  Manfred Rockel ,  Ernst Wallis

发明人： Ulrich Heubner ,  Michael Kohler ,  Manfred Rockel ,  Ernst Wallis

IPC分类号： C22C19/05

CPC分类号： C22C19/055

摘要： For use in making components which are required to have a very high resistance to uniform corrosion and against pitting and crevice corrosion under very highly corrosive conditions encountered in up to date chemical process technology and environmental protection technology, for instance, in flue gas desulfurizing plants for concentrating sulfuric acid, and which are required to be manufactured satisfactorily by conventional hot and cold forming processes an alloy is employed which contains (in % by weight) 22.0 to 24.0 chromium, 15.0 to 16.5 molybdenum, up to 0.3% tungsten, up to 1.5% iron, up to 0.4% vanadium, 0.1 to 0.4% aluminum, 0.001 to 0.04% magnesium and 0.001 to 0.01 calcium, balance nickel and inevitable accompanying elements and impurities.

摘要翻译： 用于制造在最新的化学工艺技术和环境保护技术中遇到的非常高的腐蚀性条件下要求具有非常高的抗均匀腐蚀性和耐点蚀和缝隙腐蚀的部件，例如在烟道气脱硫装置中 浓缩硫酸，需要通过常规的冷热成型方法令人满意地制造，使用含有（重量％）22.0至24.0铬，15.0至16.5钼，至多0.3％钨，至多1.5的合金 ％铁，高达0.4％的钒，0.1至0.4％的铝，0.001至0.04％的镁和0.001至0.01的钙，余量为镍和不可避免的伴随元素和杂质。

公开(公告)号：US5667556A

公开(公告)日：1997-09-16

申请号：US643463

申请日：1996-05-03

申请人： Andreas Orth ,  Peter Weber ,  Uwe Harter ,  Ernst Wallis

发明人： Andreas Orth ,  Peter Weber ,  Uwe Harter ,  Ernst Wallis

IPC分类号： C22B5/14 ,  C22B7/02 ,  C22B19/04 ,  C22B19/28 ,  C22B19/30 ,  C22B7/00

CPC分类号： C22B7/02 ,  C22B19/04 ,  C22B19/28 ,  C22B5/14 ,  Y02P10/212 ,  Y10S75/961

摘要： This invention describes a method of reprocessing zinc- and iron oxide-containing residual material. Zinc- and iron oxide-containing dust and/or sludge is granulated with water, granules and carbonaceous material are fed to a circulating fluidized bed system, the gas-solids suspension circulated in the circulating fluidized bed system is fed to a second fluidized bed reactor, the solids discharged from the second fluidized bed reactor are recycled to the reactor of the circulating fluidized bed system, 50 to 75% by volume of the oxygen required to gasify the carbonaceous material are fed as fluidizing gas to the reactor of the circulating fluidized bed system and 25 to 50% by volume of said required oxygen are fed as a fluidizing gas and secondary gas to the second fluidized bed reactor, iron oxide-containing material is discharged from the reactor of the circulating fluidized bed system and zinc-containing material is discharged with the exhaust gas from the circulating fluidized bed system.

摘要翻译： 本发明描述了一种重新处理含锌和氧化铁的残留材料的方法。 含锌和氧化铁的粉尘和/或污泥用水造粒，颗粒和碳质材料进料到循环流化床系统中，在循环流化床系统中循环的气固体悬浮液进料到第二流化床反应器 将从第二流化床反应器排出的固体再循环到循环流化床系统的反应器中，气化碳质物质所需的50至75体积％的氧气作为流化气体供入循环流化床的反应器 系统和25〜50体积％的所需氧气作为流化气体和二次气体供给到第二流化床反应器，含氧化铁的材料从循环流化床系统的反应器排出，含锌材料为 从循环流化床系统排出废气。

公开(公告)号：US5244551A

公开(公告)日：1993-09-14

申请号：US958529

申请日：1992-10-08

申请人： Volker Brucken ,  Albert Kaune ,  Manfred Potzschke ,  Ernst Wallis

发明人： Volker Brucken ,  Albert Kaune ,  Manfred Potzschke ,  Ernst Wallis

IPC分类号： C23G1/36

CPC分类号： C23G1/36

摘要： A waste pickle which has been formed in the surface treatment of rolled stock consisting of steel and contains metal salts and acids and specifically contains nitric and hydrofluoric acids and nickel salts, chromium salts, and iron salts is subjected to an acid dialysis and a membrane electrolysis. To permit a recycling of free acids at a high rate and a recovering of the metals in a form in which they can directly be used in the melting process, the acid dialysis performed for a recovery of the free nitric acid and hydrofluoric acids is succeeded by a membrane electrolysis, in which the metals are recovered from the depleted effluent from the acid dialysis, which effluent has been depleted of free acid, and the enriched effluent from the acid dialysis, which enriched effluent has been enriched with free acids, and the effluent from the membrane electrolysis, which effluent has been depleted of metals, are subjected to an evaporation.

摘要翻译： 在由钢组成的含有金属盐和酸的轧制材料的表面处理中形成的具体含有硝酸和氢氟酸以及镍盐，铬盐和铁盐的废腌汁进行酸性透析和膜电解 。 为了允许以高速率回收游离酸并以可直接在熔融过程中使用的形式回收金属，用于回收游离硝酸和氢氟酸的酸透析继续 膜电解，其中从酸性透析的贫化流出物中回收金属，其中流出物已经耗尽游离酸，并且来自酸性透析的富集流出物富集的流出物已经富含游离酸，并且流出物 从已经耗尽金属的流出物的膜电解中进行蒸发。