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1. 发明授权

US4090888A Production of black iron oxide pigments 失效
标题翻译：生产黑色氧化铁颜料
公开(公告)号：US4090888A
公开(公告)日：1978-05-23
申请号：US674995
申请日：1976-04-08
申请人： Jakob Rademachers , Franz Hund , Ingo Pflugmacher , Gerhard Winter
发明人： Jakob Rademachers , Franz Hund , Ingo Pflugmacher , Gerhard Winter
IPC分类号： C09C1/22 , C01G49/00 , C01G49/08 , C09C1/00 , C09C1/24
CPC分类号： C09C1/24 , C01P2002/52
摘要： In a two-stage process for producing black iron oxide pigments wherein an iron salt solution is alkalized in a first stage to precipitate about 55 to 70% of the iron, the solution is oxidized to convert the precipitate to goethite, the solution is further alkalized in a second stage to precipitate the balance of the iron, the precipitated iron II hydroxide is allowed to react with goethite to form magnetite, the improvement which comprises effecting the second stage in the presence of an inorganic ionic compound of at least one metal selected from the group consisting of copper, nickel, aluminum, chromium, titanium, zirconium and vanadium in about 0.05 to 5% calculated as metal based on the weight of the final pigment. The resulting pigment is of high color intensity, narrow grain distribution range and pronounced magnetite structure.
摘要翻译：在生产黑铁氧化物颜料的两阶段方法中，其中铁盐溶液在第一阶段碱化以沉淀约55至70％的铁，溶液被氧化以将沉淀物转化成针铁矿，将溶液进一步碱化在第二阶段中，为了沉淀铁的平衡，使析出的铁II氢氧化物与针铁矿反应形成磁铁矿，其改进包括在选自以下的至少一种金属的无机离子化合物存在下进行第二阶段约0.05〜5％的铜，镍，铝，铬，钛，锆和钒组成的组以金属计，基于最终颜料的重量计算。所得颜料具有高颜色强度，窄粒度分布范围和明显的磁铁矿结构。

2. 发明授权

US4355006A Process for the oxidative dissociation of chrome-containing ores 失效
标题翻译：含铬矿石的氧化解离过程
公开(公告)号：US4355006A
公开(公告)日：1982-10-19
申请号：US181551
申请日：1980-08-27
申请人： Jakob Rademachers , Ingo Pflugmacher
发明人： Jakob Rademachers , Ingo Pflugmacher
IPC分类号： C01G37/14 , C22B34/32
CPC分类号： C22B34/32 , Y02P10/234
摘要： A process for the oxidative dissociation of chrome-containing ores comprising agglomerating a mixture of a chrome-containing ore, an alkaline substance and a moist solid residue from a preceding operation as a leaning agent, dissociating the agglomerate and then leaching to form a solution of chromate and a solid residue, and separating said solution from said solid residue still wet with said solution. Advantageously the alkaline substance comprises sodium hydroxide or sodium carbonate, the still wet residue is added in such a quantity that the agglomerates obtained have a moisture content of between about 10 and 15% by weight, and at least about 70% by weight of the agglomerates have a diameter from about 0.1 to 3 mm.
摘要翻译：含铬矿石的氧化解离的方法，包括将来自前述操作的含铬矿石，碱性物质和湿固体残余物的混合物作为倾斜剂凝聚，解离附聚物，然后浸出以形成溶液铬酸盐和固体残余物，并将所述溶液与仍然被所述溶液润湿的所述固体残余物分离。有利地，碱性物质包括氢氧化钠或碳酸钠，仍然湿的残余物的添加量使得所获得的附聚物具有约10至15重量％的水分含量和至少约70重量％的附聚物具有约0.1至3mm的直径。

3. 发明授权

US4235861A Production of iron oxide pigments and sodium sulphate 失效
标题翻译：生产氧化铁颜料和硫酸钠
公开(公告)号：US4235861A
公开(公告)日：1980-11-25
申请号：US011345
申请日：1979-02-12
申请人： Jakob Rademachers , Ingo Pflugmacher
发明人： Jakob Rademachers , Ingo Pflugmacher
IPC分类号： C09C1/22 , C01D5/00 , C01D5/06 , C01G49/02 , C01G49/06 , C01G49/08 , C09C1/00
CPC分类号： C01D5/06 , C01G49/06 , C01G49/08
摘要： In the production of iron oxide pigments and substantially iron-free sodium sulphate from iron sulphate by passing an oxygen-containing gas through an alkalized iron sulphate-containing solution at a temperature of about 40.degree. to 100.degree. C., and separating iron oxide pigment formed from the solids-free sodium sulphate-containing solution, the improvement of which comprises crystallizing out part of the sodium sulphate from the solids-free solution in a first crystallization step, separating the crystals from the sodium sulphate-containing mother liquor, dividing the mother liquor into first and second portions, dissolving solid iron sulphate hydrate in the first portion, adding to the second portion sodium hydroxide thereby to crystallize additional sodium sulphate, separating the additional crystals of sodium sulphate from the rest of the mother liquor, and using the rest of the mother liquor containing sodium sulphate and sodium hydroxide to alkalize further iron sulphate solution in the precipitation of further iron oxide pigment.
摘要翻译：在通过含氧气体通过含碱硫酸铁的溶液在约40℃至100℃的温度下生产氧化铁颜料和基本上不含硫的硫酸钠，并分离氧化铁颜料由不含固体的含硫酸钠溶液形成，其改进包括在第一结晶步骤中从无固体溶液中结晶部分硫酸钠，从含硫酸钠的母液中分离晶体，将将母液分成第一和第二部分，将固体硫酸铁水合物溶解在第一部分中，向第二部分加入氢氧化钠，从而使另外的硫酸钠结晶，将另外的硫酸钠晶体与其余的母液分离，并使用剩余的含有硫酸钠和氢氧化钠的母液将另外的硫酸铁溶液碱化 n进一步氧化铁颜料沉淀。

4. 发明授权

US4985073A Needle shaped alloy powders based on iron and their use 失效
标题翻译：基于铁的针状合金粉末及其用途
公开(公告)号：US4985073A
公开(公告)日：1991-01-15
申请号：US384432
申请日：1989-07-25
申请人： Rolf Naumann , Jakob Rademachers , Fritz Rodi
发明人： Rolf Naumann , Jakob Rademachers , Fritz Rodi
IPC分类号： B22F9/22 , B22F1/00 , C09D5/23 , C09D7/12 , C22C33/02 , G11B5/706 , G11B5/712 , H01F1/047
CPC分类号： C22C33/0264 , B22F1/004 , G11B5/70621 , G11B5/712
摘要： Needle shaped alloy pigment powders consisting essentially of iron, silicon and aluminum, with up to 1.0% by weight of chromium and one or both of cobalt or tin in amounts from 0.3 to 3% by weight of cobalt and from 0.1 to 5.0% by weight of tin, based in each case on the iron, are useful as the magnetic powders used in magnetic recording devices.
摘要翻译：基本上由铁，硅和铝组成的针状合金颜料粉末，含有至多1.0重量％的铬和钴或锡中的一种或两种，其量为0.3-3重量％的钴和0.1-5.0重量％在铁的每种情况下，锡可用作磁记录装置中使用的磁粉。

5. 发明授权

US4781580A Indirectly heated rotary tubular kiln 失效
标题翻译：间接加热旋转管式窑
公开(公告)号：US4781580A
公开(公告)日：1988-11-01
申请号：US51191
申请日：1987-05-14
申请人： Helmut Janz , Fritz Rodi , Alfred Soppe , Jakob Rademachers
发明人： Helmut Janz , Fritz Rodi , Alfred Soppe , Jakob Rademachers
IPC分类号： F27B7/10 , B01J8/10 , C01G49/08 , C21B15/00 , F26B11/04 , F27B7/06 , F27B7/08 , F27B7/16
CPC分类号： F26B11/0477 , F27B7/08 , F27B7/161
摘要： In a rotary tubular kiln for carrying out gas-solids reactions, comprising an indirectly heated, rotatable reaction tube with inner baffles which is provided with charging and removing devices for solid and gas inlet and outlet lines, the improvement which comprises forming the baffles as a central tube which is sealed on both sides and runs along the total length of the kiln, and a spiral which is tightly connected to the central tube and also to the outer rotatable tube. Lifting blades are uniformly distributed along the inner periphery of the rotatable tube. The kiln is suitable for carrying out oxidation, reduction, chlorination, roasting, decomposition, catalytic, annealling and/or cooling processes, e.g. the conversion of hematite to magnetite or goethite to iron.
摘要翻译：在用于进行气体 - 固体反应的旋转管式窑中，包括具有内部挡板的间接加热的可旋转的反应管，其具有用于固体和气体入口和出口管线的装料和除油装置，其改进包括将挡板形成为两侧密封并沿窑总长度延伸的中心管，以及与中心管以及外部可旋转管紧密连接的螺旋。提升叶片沿着可旋转管的内周均匀分布。窑炉适用于进行氧化，还原，氯化，焙烧，分解，催化，退火和/或冷却过程。赤铁矿转变为磁铁矿或针铁矿转铁。

6. 发明授权

US4470844A Agglomerated ferromagnetic iron particles 失效
标题翻译：聚集铁磁铁颗粒
公开(公告)号：US4470844A
公开(公告)日：1984-09-11
申请号：US324915
申请日：1981-11-25
申请人： Jakob Rademachers , Rolf Naumann , Hans-Peter Biermann , Gunter Buxbaum , Wolfgang Rambold
发明人： Jakob Rademachers , Rolf Naumann , Hans-Peter Biermann , Gunter Buxbaum , Wolfgang Rambold
IPC分类号： B22F1/00 , B22F9/04 , C09D5/23 , C09D7/12 , G11B5/62 , G11B5/706 , H01F1/06 , C22C1/04
CPC分类号： B22F1/0096 , G11B5/70621 , H01F1/061
摘要： Spherical agglomerates of surface-stabilized primary particles substantially consisting of iron, having a BET surface of about 5 to 50 m.sup.2 /g, measured on the agglomerate, in non-pyrophoric form and having a bulk density of about 0.5 to 2.0 kg/l and an agglomerate diameter of about 0.5 to 10 mm are produced by(a) reducing in dry phase particles consisting essentially of iron oxide,(b) intensively dispersing the particles in liquid phase,(c) coating the particles with an inorganic and/or organic coating optionally containing corrosion inhibitors,(d) separating the particles from the liquid phase by evaporating the volatile components with a continuously rotating and simultaneously tumbling movement, and(e) subjecting the resulting granulates to a thermal treatment. The particles are especially useful for the production of magnetic recording media.
摘要翻译：基本上由铁组成的表面稳定的一次粒子的球形附聚物，具有约5至50m 2 / g的BET表面积，在附聚物上以非自燃形式测量，堆积密度为约0.5至2.0kg / l，通过（a）在干相中还原基本上由氧化铁组成的颗粒，（b）将颗粒集中分散在液相中，（c）用无机和/或有机物涂覆颗粒，产生约0.5至10mm的团块直径任选地含有腐蚀抑制剂的涂层，（d）通过以连续旋转和同时翻转的运动蒸发挥发性组分，和（e）使所得颗粒经受热处理，从而将颗粒与液相分离。颗粒对于制造磁记录介质特别有用。

7. 发明授权

US4957562A Chrome oxide green, a process for its preparation and its use 失效
标题翻译：氧化铬绿，是其制备和使用的过程
公开(公告)号：US4957562A
公开(公告)日：1990-09-18
申请号：US259597
申请日：1988-10-19
申请人： Jakob Rademachers , Dieter Rade , Hans-Ulrich Hofs , Gunther Teichmann , Gerhard Trenczek
发明人： Jakob Rademachers , Dieter Rade , Hans-Ulrich Hofs , Gunther Teichmann , Gerhard Trenczek
IPC分类号： C01G37/02 , C01B31/30 , C09C1/34 , C09K21/02 , C22B34/32
CPC分类号： C22B34/32 , C01B31/303 , C09C1/34 , C01P2004/50 , C01P2004/61 , C01P2006/12 , C01P2006/82
摘要： Chrome green oxide useful, inter alia, as a coloring material and having a water number of 10 to 40 g/100 g is prepared by adding sulphonic acid compounds, polyphosphoric acid compounds, polyacrylic acid compounds or mixtures thereof, in quantities of from 0.1 to 2% by weight, to an aqueous suspension of chrome oxide green pigment having a BET surface area of from 1 to 20 m.sup.2 /g before drying, and then drying the suspension.
摘要翻译：通过将磺酸化合物，多磷酸化合物，聚丙烯酸化合物或其混合物的添加量从0.1至0.1重量份制备，尤其可用作着色材料并且具有10至40g / 100g的水数的铬绿色氧化物 2重量％，与干燥前的BET表面积为1〜20m 2 / g的氧化铬绿色颜料的水性悬浮液混合，然后干燥。

8. 发明授权

US4919726A Process for the production of rutile mixed-phase pigments 失效
标题翻译：用于生产金红石混合相颜料的方法
公开(公告)号：US4919726A
公开(公告)日：1990-04-24
申请号：US298382
申请日：1989-01-18
申请人： Jakob Rademachers , Volker Wilhelm
发明人： Jakob Rademachers , Volker Wilhelm
IPC分类号： C01G23/00 , C09C1/36
CPC分类号： C09C1/36 , C01P2002/30
摘要： A process for the production of rutile mixed-phase pigments comprising calcinating of a solid mixture of titanium dioxide or titanium oxide hydroxide with a dye-producing compound of a metal, in one or more directly heated, continuously operated rotary kilns, wherein in terms of material flow, air is introduced into the kiln atmosphere countercurrently to the direction of flow of the solids in the second half of the rotary kiln.
摘要翻译：一种用于生产金红石混合相颜料的方法，包括在一个或多个直接加热的连续操作的旋转窑中煅烧二氧化钛或氧化钛氢氧化物与金属的染料产生化合物的固体混合物，其中以材料流动，空气与回转窑后半部分固体的流动方向逆流地引入窑气氛中。

9. 发明授权

US4629500A Use of novel rotary tubular kiln 失效
标题翻译：使用新型旋转管式窑
公开(公告)号：US4629500A
公开(公告)日：1986-12-16
申请号：US637469
申请日：1984-08-03
申请人： Helmut Janz , Fritz Rodi , Alfred Soppe , Jakob Rademachers
发明人： Helmut Janz , Fritz Rodi , Alfred Soppe , Jakob Rademachers
IPC分类号： F27B7/10 , B01J8/10 , C01G49/08 , C21B15/00 , F26B11/04 , F27B7/06 , F27B7/08 , F27B7/16 , C21B13/08
CPC分类号： F26B11/0477 , F27B7/08 , F27B7/161
摘要： In a rotary tubular kiln for carrying out gas-solids reactions, comprising an indirectly heated, rotatable reaction tube with inner baffles which is provided with charging and removing devices for solid and gas inlet and outlet lines, the improvement which comprises forming the baffles as a central tube which is sealed on both sides and runs along the total length of the kiln, and a spiral which is tightly connected to the central tube and also to the outer rotatable tube. Lifting blades are uniformly distributed along the inner periphery of the rotatable tube. The kiln is suitable for carrying out oxidation, reduction, chlorination, roasting, decomposition, catalytic, annealing and/or cooling processes, e.g. the conversion of hematite to magnetite or goethite to iron.
摘要翻译：在用于进行气体 - 固体反应的旋转管式窑中，包括具有内部挡板的间接加热的可旋转的反应管，其具有用于固体和气体入口和出口管线的装料和除油装置，其改进包括将挡板形成为两侧密封并沿窑总长度延伸的中心管，以及与中心管以及外部可旋转管紧密连接的螺旋。提升叶片沿着可旋转管的内周均匀分布。窑炉适用于进行氧化，还原，氯化，焙烧，分解，催化，退火和/或冷却过程。赤铁矿转变为磁铁矿或针铁矿转铁。

10. 发明授权

US3956006A Composite pigment of isometric rutile and acicular modified potassium hexatitanate 失效
标题翻译：等量金红石和针状改性的六钛酸钾的复合颜料
公开(公告)号：US3956006A
公开(公告)日：1976-05-11
申请号：US438330
申请日：1974-01-31
申请人： Gerhard Winter , Werner Fuhr , Jakob Rademachers
发明人： Gerhard Winter , Werner Fuhr , Jakob Rademachers
IPC分类号： C09C1/00 , C09C1/36 , D21H17/67
CPC分类号： C09C1/0084 , D21H17/675 , C01P2002/30 , C01P2004/84
摘要： A white composite pigment, containing isometric rutile pigment particles and acicular modified potassium hexatitanate, is produced by reacting titanium dioxide or a titanium compound which can be converted into titanium dioxide under the reaction conditions in the presence of rutile seeds with a potassium compound which reacts basically under the reaction conditions, a mineralizer and a polyvalent metal fluoride at a temperature of about 700.degree. to 1100.degree.C.
摘要翻译：含有等距金红石颜料颗粒和针状改性的六钛酸钾的白色复合颜料是通过使二氧化钛或钛化合物在金红石种子存在下的反应条件下与基本上反应的钾化合物反应的钛化合物反应制备的在反应条件下，在约700〜1100℃的温度下进行矿化剂和多价金属氟化物。

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