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1. 发明授权

US4344799A Readily dispersible TiO.sub.2 pigment 失效
标题翻译：易分散的TiO2颜料
公开(公告)号：US4344799A
公开(公告)日：1982-08-17
申请号：US203010
申请日：1980-11-03
申请人： Klaus Kohler , Peter Woditsch , Hilmar Rieck , Fritz Rodi
发明人： Klaus Kohler , Peter Woditsch , Hilmar Rieck , Fritz Rodi
IPC分类号： C09C1/36 , C09C1/32 , C09C3/00
CPC分类号： C09C1/3692 , C01P2004/84
摘要： An inorganically after-treated TiO.sub.2 pigment with a coating of hydrophobicizing and hydrophilicizing organic substances, which pigment comprises more than about 95% by weight of TiO.sub.2, shows a loss on annealing of less than about 0.8% (after subtraction of the carbon content) and has a grindometer value smaller than about 30, corresponding to a value of more than about 5.6 on the Hegman scale, is produced by micronizing a mixture of an inorganically after-treated TiO.sub.2 pigment, an untreated TiO.sub.2 pigment and hydrophobicizing and hydrophilicizing organic substances, the after-treated pigment being employed in about 1 to 40% by weight of total TiO.sub.2 pigment and the hydrophobicing and hydrophilicizing substances being employed in about 0.3 to 5% by weight of TiO.sub.2 pigment. The pigments are readily dispersible which simplifies their use in pigmenting lacquers, plastics and paper.
摘要翻译：具有疏水化和亲水化有机物质的无机后处理的TiO 2颜料，该颜料包含大于约95重量％的TiO 2，退火时损失小于约0.8％（减去碳含量之后）和通过将无机后处理的TiO 2颜料，未处理的TiO 2颜料和疏水化和亲水化的有机物质的混合物微粉化，产生小于约30的磨盘值，对应于Hegman规模的值大于约5.6，后处理颜料用于总TiO 2颜料的约1至40重量％，并且疏水和亲水化物质用于约0.3至5重量％的TiO 2颜料。颜料容易分散，这简化了它们在着色漆，塑料和纸张中的应用。

2. 发明授权

US3974079A Production of gamma iron oxide 失效
标题翻译：生产γ氧化铁
公开(公告)号：US3974079A
公开(公告)日：1976-08-10
申请号：US412488
申请日：1973-11-02
申请人： Peter Woditsch , Kurt Hill , Franz Hund , Fritz Rodi
发明人： Peter Woditsch , Kurt Hill , Franz Hund , Fritz Rodi
IPC分类号： C01G49/06 , C09C1/24 , G11B5/706 , H01F1/113
CPC分类号： H01F1/113 , C01G49/06 , C09C1/24 , G11B5/70647 , G11B5/70652 , G11B5/70663 , C01P2004/10 , C01P2004/54 , C01P2004/62 , C01P2006/42 , C01P2006/80
摘要： Process for producing ferromagnetic iron oxides whereby a solution of a ferrous salt is oxidized in the presence of .alpha.-FeO(OH) seed, a basic precipitant, and phosphoric acid or a water soluble salt thereof to form .alpha.-FeO(OH), which can be dehydrated, optionally tempered, reduced and re-oxidized to needle-shaped .gamma.-Fe.sub.2 O.sub.3. The resulting product has high coercive force values which make it especially useful for magnetic impulse recording and reproduction.
摘要翻译：制备铁磁性氧化铁的方法，其中亚铁盐溶液在α-FeO（OH）种子，碱性沉淀剂和磷酸或其水溶性盐的存在下被氧化以形成α-FeO（OH），其中可以脱水，任选回火，还原和再氧化成针状γ-Fe2O3。所得到的产品具有高的矫顽力值，使其对于磁脉冲记录和再现特别有用。

3. 发明授权

US4186028A Fluid pigment suspensions with phosphonocarboxylic acids 失效
标题翻译：具有膦酰基羧酸的流体颜料悬浮液
公开(公告)号：US4186028A
公开(公告)日：1980-01-29
申请号：US911008
申请日：1978-05-30
申请人： Peter Woditsch , Gunther Teichmann , Gunter Linde , Gunter Lailach , Fritz Rodi
发明人： Peter Woditsch , Gunther Teichmann , Gunter Linde , Gunter Lailach , Fritz Rodi
IPC分类号： B01F17/00 , B01F17/14 , C09D17/00 , C09C1/02 , C09C1/08 , C09C1/24 , C09C1/36
CPC分类号： B01F17/0064 , C09D17/004
摘要： In an aqueous fluid dispersible filler or pigment suspension containing a dispersion aid, the improvement which comprises employing as the dispersion aid about 0.01 to 1% by weight, based on solids, of a phosphonocarboxylic acid or a salt thereof. The pigment may be TiO.sub.2 and be present in from 30 to 80% concentration. The dispersion aid may be phosphonobutane-1, 2,4-tricarboxylic acid or a salt, and an amine or alkanolamine may also be present.
摘要翻译：在含有分散助剂的水性流体分散性填料或颜料悬浮液中，其改进包括使用基于固体的基于固体的约0.01至1重量％的膦酰基羧酸或其盐。颜料可以是TiO 2，并且以30至80％的浓度存在。分散助剂可以是膦酰基丁烷-1,2,4-三羧酸或其盐，也可以存在胺或链烷醇胺。

4. 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。

5. 发明授权

US4933014A Magnetic iron oxide pigments and a process for their preparation 失效
标题翻译：磁性氧化铁颜料及其制备方法
公开(公告)号：US4933014A
公开(公告)日：1990-06-12
申请号：US90929
申请日：1987-08-31
申请人： Hendrik Kathrein , Peter Kiemle , Fritz Rodi , Aloys Eiling
发明人： Hendrik Kathrein , Peter Kiemle , Fritz Rodi , Aloys Eiling
IPC分类号： C01G49/00 , G11B5/706 , H01F1/11
CPC分类号： G11B5/70647 , Y10T428/2991
摘要： Magnetic iron oxide pigments useful in magnetic signal recordings having a dependence of coercivity on temperature in the temperature range of from 76K to 298K of less than 0.13 kA/mK and having a coercivity on powder compressed to 0.9 g/cm.sup.3 of greater than 51 kA/m are prepared by coating a magnetic iron oxide core material having the composition FeO.sub.x where x is a number from 1.33 to 1.5 in a first step with a compound containing divalent and trivalent iron having a ratio of Fe(III): Fe(II) from 0.01 to less than 2, and then in a second step coating the pre-coated core with a second coating of a cobalt compound.
摘要翻译：磁性氧化铁颜料可用于具有小于0.13kA / mK的76K至298K的温度范围内矫顽力与温度相关的磁信号记录，并且具有压缩至0.9g / cm 3的粉末矫顽力大于51kA / m是通过在第一步中用含有Fe（III）：Fe（II）的二价和三价铁的化合物涂覆具有组成FeO x的磁性氧化铁芯材料，其中x为1.33至1.5， 0.01至小于2，然后在第二步中用钴化合物的第二涂层涂覆预涂芯。

6. 发明授权

US4689086A Stabilized magnetic pigments 失效
标题翻译：稳定磁性颜料
公开(公告)号：US4689086A
公开(公告)日：1987-08-25
申请号：US790797
申请日：1985-10-24
申请人： Rolf Naumann , Jakob Rademachers , Gunter Buxbaum , Fritz Rodi , Karl Waid
发明人： Rolf Naumann , Jakob Rademachers , Gunter Buxbaum , Fritz Rodi , Karl Waid
IPC分类号： B22F1/00 , C09C1/00 , C09C1/22 , C09C3/00 , C09C3/10 , C09D5/23 , G11B5/706 , G11B5/712 , H01F1/06 , C09C1/24 , C09D17/00
CPC分类号： G11B5/712 , G11B5/70615 , H01F1/061
摘要： Sensitive magnetic pigment particles enclosed in about 0.1 to 5% by weight of a polymeric material thereby preserving the pigment magnetic properties. Advantageously, the polymer, which serves as a packing, is at least one member selected from the group consisting of polycarbonates, polyacrylates, polymethacrylates, polyesters, polyethers, polyurethanes, polyvinyl compounds, polyvinylidene compounds and cellulose compounds. These are compatible with the matrices used to make magnetic tapes.
摘要翻译：密封在约0.1至5重量％聚合物材料中的敏感磁性颜料颗粒，从而保留颜料磁性。有利地，用作填料的聚合物是选自聚碳酸酯，聚丙烯酸酯，聚甲基丙烯酸酯，聚酯，聚醚，聚氨酯，聚乙烯基化合物，聚偏二氟乙烯化合物和纤维素化合物中的至少一种。这些与用于制造磁带的矩阵兼容。

7. 发明授权

US4923519A Magnetic iron oxide pigments and a process for their preparation 失效
标题翻译：磁性氧化铁颜料及其制备方法
公开(公告)号：US4923519A
公开(公告)日：1990-05-08
申请号：US91059
申请日：1987-08-31
申请人： Fritz Rodi , Peter Kiemle , Aloys Eiling , Hendrik Kathrein
发明人： Fritz Rodi , Peter Kiemle , Aloys Eiling , Hendrik Kathrein
IPC分类号： C01G49/00 , G11B5/706 , H01F1/11
CPC分类号： G11B5/70647 , Y10T428/2991
摘要： Magnetic iron oxide pigments having a monomolecular coating of a cobalt compound useful in magnetic signal recordings having a dependence of coercivity on temperature in the temperature range of from 76 K to 298 K of less than 0.13 kA/mK and having a coercivity on powder compressed to 0.9 g/cm.sup.3 of greater than 51 kA/m are prepared applying a preliminary coating of Fe.sub.3 O.sub.4 or a bertholloid compound to a magnetic iron oxide core material having the composition FeO.sub.x where x is a number from 1.33 to 1.55 and then covering the preliminary coating with a cobalt compound.
摘要翻译：具有钴化合物的单分子涂层的磁性氧化铁颜料，其可用于在76K至298K的温度范围内的矫顽力与温度的相关性小于0.13kA / mK的磁信号记录，并且具有压缩至制备大于51kA / m 3的0.9g / cm 3，其中将Fe 3 O 4或硼氢化合物的初步涂层施加到具有FeO x组成的磁性氧化铁芯材料，其中x为1.33至1.55的数值，然后用钴化合物。

8. 发明授权

US5002751A Highly-coercive isometric iron oxides, a process for the production and the use thereof 失效
标题翻译：高强度等距铁氧化物，其生产和使用的方法
公开(公告)号：US5002751A
公开(公告)日：1991-03-26
申请号：US767900
申请日：1985-08-21
申请人： Jurgen Wiese , Gunter Buxbaum , Rolf Schafer , Fritz Rodi
发明人： Jurgen Wiese , Gunter Buxbaum , Rolf Schafer , Fritz Rodi
IPC分类号： C01G49/06 , C01G49/08 , G03G9/08 , G03G9/083 , G11B5/706 , H01F1/11
CPC分类号： C01G49/08 , C01G49/06 , G11B5/70652 , G11B5/70694 , H01F1/11 , C01P2004/62 , C01P2006/12 , C01P2006/42
摘要： Highly-coercive isometric iron oxide useful in magnetic toners for electrostatic photo-copying processes or for magnetic printers is produced by(a) subjecting Fe.sub.3 O.sub.4 pigment produced in a wet process to oxidation and(b) subsequently reducing the oxidized pigment from (a) to produce highly-coercive Fe.sub.3 O.sub.4 pigment.
摘要翻译：通过（a）使在湿法生产的Fe 3 O 4颜料氧化和（b）随后将氧化颜料从（a）还原成（a）至（a））中，生成用于静电复印工艺或磁性打印机的磁性调色剂中的高矫顽力等距氧化铁产生高矫顽力的Fe3O4颜料。

9. 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。

10. 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。

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