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31.发明授权Process for precipitating iron as jarosite with a low non-ferrous metal content 失效将铁沉淀为具有低有色金属含量的黄钾铁矾的方法
公开(公告)号：US4305914A
公开(公告)日：1981-12-15
申请号：US75948
申请日：1979-09-17
CPC分类号： C01G9/06 , C01G49/009 , C01G49/14 , C21B15/00 , C21B3/04 , C22B19/26 , C22B3/20 , C22B3/44 , C01P2004/62 , C01P2006/80 , Y02P10/234 , Y02W30/542
摘要： A process for precipitating iron as a jarosite from a sulphate solution containing ferric iron, free acid and valuable non-ferrous metals, characterized by cooling the solution; partially neutralizing the free acidity, and then clarifying the solution; heating the clarified solution to a temperature not exceeding the boiling point at atmospheric pressure, in the presence of at least one ion selected from the group consisting of sodium, potassium and ammonium ions, and in the presence of recycled jarosite, and without the addition of any further neutralizing agent, so that substantially all of the ferric iron is precipitated as a jarosite; and separating precipitated jarosite from the solution; thereby producing a jarosite contaminated with only minor amounts of non-ferrous metals, and a solution which may be further processed by established procedures for the recovery of dissolved valuable non-ferrous metals therefrom. The invention also contemplates a dilution step, and recycle of jarosite.
摘要翻译： 一种从含有三价铁，游离酸和有价值的有色金属的硫酸盐溶液中析出铁作为黄钾铁矾的方法，其特征在于冷却溶液; 部分中和游离酸度，然后澄清溶液; 在至少一种选自钠，钾和铵离子的离子存在下，在再生的黄钾铁矾存在下，将澄清溶液加热到不超过大气压沸点的温度，并且不加入 任何进一步的中和剂，使得基本上所有的三价铁作为黄钾铁矾沉淀; 并将沉淀的黄钾铁矾与溶液分离; 从而产生仅被少量有色金属污染的黄钾铁矾，以及可以通过用于从其中回收溶解的有价值的有色金属的既定程序进一步加工的溶液。 本发明还考虑了稀释步骤和回收黄钾铁矾。
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公开(公告)号：US4199349A
公开(公告)日：1980-04-22
申请号：US831401
申请日：1977-09-08
CPC分类号： C21B5/008 , C21B13/00 , C21B13/08 , Y10S75/962
摘要： A process for producing feedstock of highly metallized reduced iron from a metalliferrous slurry in which the slurry is subjected to high pressure filtration (9) and the resultant filter cake is then broken up and fed into a kiln (10) for firing together with a reductant.The slurry may be ferruginous waste products from ironmaking/steelmaking processes i.e. in-plant fines and additions may be made to the slurry (1 to 7) to aid the reduction stage of the process or to aid the agglomeration stage.
摘要翻译： 从金属矿浆中生产高度金属化的还原铁的原料的方法，其中浆料经过高压过滤（9），然后将所得的滤饼分解并进料到窑（10）中以与还原剂一起焙烧 。
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公开(公告)号：US4172715A
公开(公告)日：1979-10-30
申请号：US937921
申请日：1978-08-30
申请人： Roger L. Altman , Karl D. Libsch , M. Vikram Rao
发明人： Roger L. Altman , Karl D. Libsch , M. Vikram Rao
CPC分类号： C04B5/00 , C21B3/04 , Y02W30/542
摘要： The autoignition of slags produced by the soda smelting of metal containing substances such as lead and antimony bearing materials is prevented through the minimization of iron and entrained coke in the slag and through removal of entrained coke from the slag.
摘要翻译： 通过最小化炉渣中的铁和夹带的焦炭以及通过从渣中除去夹带的焦炭，可以防止由含金属的物质如铅和锑承载材料生产的炉渣的自燃。
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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：US4149898A
公开(公告)日：1979-04-17
申请号：US880004
申请日：1978-02-21
申请人： Jerzy Grzymek , Anna Derdacka , Zofia Konik , Bronislaw Werynski
发明人： Jerzy Grzymek , Anna Derdacka , Zofia Konik , Bronislaw Werynski
CPC分类号： C01F7/18 , C04B5/00 , C04B7/00 , C21B3/04 , C22B7/04 , C01P2006/11 , C01P2006/80 , Y02P10/218 , Y02W30/542
摘要： A method for obtaining aluminum oxide where the smelted metallurgical slag is subjected to a slow cooling and then self-decomposition by simultaneous action of ultrasound or vibration of high frequency, carried out, which accelerates the formation, in a glassy (vitrous) phase, of a polymorphous, crystalline, high-temperature modification of calcium aluminate, 12 CaO.multidot.7Al.sub.2 O.sub.3, which can be easily lixiviated with aqueous solutions of soda. From lye liquors after extraction, the aluminum oxide is then recovered and the residue, after lixiviation, is burnt to standard portland clinker keeping possibly the lowest proportion of the quantity of clinker produced in relation to the quantity of obtained aluminum oxide.
摘要翻译： 一种获得氧化铝的方法，其中熔融冶金炉渣经历缓慢冷却，然后通过超声波的同时作用或高频振动进行自分解，其在玻璃状（玻璃态）相中进行加速形成 多晶，结晶，高温改性的铝酸钙12 CaO x 7 Al 2 O 3，其可以容易地用苏打水溶液浸泡。 从提取后的碱液中回收氧化铝，并且将浸出后的残余物燃烧到标准波特兰熟料上，保持相对于获得的氧化铝量产生的熟料量的最低比例。
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公开(公告)号：US4105439A
公开(公告)日：1978-08-08
申请号：US801786
申请日：1977-05-31
申请人： Thomas M. Barnes
发明人： Thomas M. Barnes
CPC分类号： C21C5/28 , C21B3/04 , C21C5/32 , Y02W30/542
摘要： In a method of producing successive heats of refined steel wherein successive charges of molten, impure iron are refined by oxygen in the presence of at least one flux to form molten, refined steel and liquid slag, followed by the separation of said molten, refined steel and liquid slag, the improvement wherein a liquid slag from one of said refining operations is brought into contact with and caused to react with a batch of molten, impure iron which comprises a charge for a subsequent refining operation other than the immediate next successive refining operation to that from which the said liquid slag was obtained, such that at least some of the free and combined iron contained in said slag is substantially reduced and dissolved into said molten, impure iron, and such that the molten, impure iron is at least partially refined.
摘要翻译： 在制造连续的精炼钢的方法中，其中在存在至少一种助熔剂的情况下，熔融的不纯铁的连续电荷被氧气精炼以形成熔融，精炼的钢和液态炉渣，然后将所述熔融精炼钢 和液体炉渣，其中来自所述精炼操作之一的液体炉渣与一批熔融的不纯铁接触并引起与一批熔融的不纯铁反应的改进，其包括除了即时下一个连续精炼操作之外的后续精炼操作的装料 获得所述液体渣的原料，使得所述炉渣中所含的游离和组合铁中的至少一些基本上被还原并溶解到所述熔融的不纯铁中，并且使得熔融的不纯铁至少部分地 精制。
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公开(公告)号：US4071355A
公开(公告)日：1978-01-31
申请号：US685971
申请日：1976-05-13
申请人： John O. Staggers
发明人： John O. Staggers
IPC分类号： C21B3/04
CPC分类号： C21B3/04 , Y02W30/542
摘要： An improved method is described for processing pig iron containing vanadium to obtain a slag containing at least 8 percent vanadium and having a vanadium to iron ratio of at least 0.5 which is directly useful as a refining agent for producing ferrovanadium alloys, the improvement residing in simultaneously introducing a highly oxidizing gas and a protective fluid below the upper surface of a bath of the molten pig iron maintained at a temperature in the range of 2600.degree. to 2900.degree. F. to oxidize vanadium preferentially, as compared to iron, and thereby produce a vanadium-containing slag in which the ratio of vanadium to iron is increased.
摘要翻译： 描述了一种改进的方法来处理含有钒的生铁，以获得含有至少8％钒并且钒与铁之比至少为0.5的炉渣，其直接用作生产铁钒合金的精炼剂，其改进同时存在 将高氧化性气体和保护流体引入熔融生铁浴的上表面，保持在2600〜2900°F的温度范围内，与铁相比优先氧化钒，由此产生 其中钒与铁的比率增加的含钒矿渣。
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38.发明授权
公开(公告)号：US4052196A
公开(公告)日：1977-10-04
申请号：US006193
申请日：1970-01-27
申请人： Gerald Namy , August Becker , Klaus Trappe
发明人： Gerald Namy , August Becker , Klaus Trappe
CPC分类号： B01D47/06 , C21B3/04 , C22B1/14 , C22B7/02 , Y02P10/212 , Y02W30/542 , Y10S75/961
摘要： A method and apparatus for moistening the charge material of an ore-dressing plant with an iron oxide containing dust-water dispersion comprising the thickening of the dispersion into a mud, a pumping of the mud from the thickener to a mixing device where the mud is mixed with the charge material, and controlling the amount of mud dependent upon the water requirements of the ore-dressing plant by varying the amount of mud conveyed. In case of a mud blockage of the system, means are provided for flushing the system out with rinsing water.
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39.发明授权Process for separating iron, zinc and lead from flue dust and/or flue sludge 失效从烟道灰尘和/或烟道污泥中分离铁，锌和铅的工艺
公开(公告)号：US4018680A
公开(公告)日：1977-04-19
申请号：US661040
申请日：1976-02-24
申请人： Rudolf Kupfer
发明人： Rudolf Kupfer
CPC分类号： C22B7/02 , C21B3/04 , C22B3/22 , C22B7/04 , Y02P10/234 , Y02W30/542 , Y10S75/961
摘要： There is disclosed a process for separating iron, zinc and lead from flue dust and/or flue sludge, wherein the three following reaction stages are performed in the aqueous phase:A. Oxidation of the iron and filtration of the resulting first turbid liquid;B. Suspension and acidification of a first filtration residue and subsequent filtration of the resulting second turbid liquid, whereby a second filtration residue containing mainly iron sludge is obtained;C. Neutralization of the filtrate and subsequent filtration of the resulting third turbid liquid, whereby a third filtration residue containing the precipated heavy metals is obtained.
摘要翻译： 公开了从烟道灰尘和/或烟道污泥中分离铁，锌和铅的方法，其中在水相中进行以下三个反应阶段：
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40.发明授权
公开(公告)号：US3929461A
公开(公告)日：1975-12-30
申请号：US44615674
申请日：1974-02-27
CPC分类号： C22B34/1204 , C22B34/22
摘要： Vanadium and titanium values are recovered from vanadium containing titaniferous iron ore by subjecting the ore to a reduction process to separate the iron from the slag containing the vanadium and titanium, fusing the slag with an alkali metal salt, oxidizing the vanadium to its plus five oxidation state, and recovering the vanadium and titanium by conventional techniques.
摘要翻译： 通过对矿石进行还原处理以从含有钒和钛的炉渣中分离出铁，将炉渣与碱金属盐熔合，将钒氧化成其五次氧化，从含钒含铁铁矿石中回收钒和钛的值 状态，并通过常规技术回收钒和钛。
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