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1. 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。

2. 发明授权

US4921542A Finely divided iron oxide black pigments, a process for their preparation and their use 失效
标题翻译：细分的氧化铁黑色颜料，其制备方法及其用途
公开(公告)号：US4921542A
公开(公告)日：1990-05-01
申请号：US250076
申请日：1988-09-28
申请人： Jakob Rademachers , Karl-Werner Ganter , Wolfgang Rambold , Gunter Linde
发明人： Jakob Rademachers , Karl-Werner Ganter , Wolfgang Rambold , Gunter Linde
IPC分类号： C01G49/08 , C08K3/22 , C09C1/22 , C09C1/24 , C09D7/12
CPC分类号： C08K3/22 , C09C1/24 , C01P2004/61 , C01P2006/60
摘要： Iron oxide black pigments useful as coloring pigments for lacquers and plastics are prepared by an improved process wherein finely divided iron oxide black suspensions obtained from the precipitation processor the aniline process are filtered, washed, dried and ground with the improvement in the process comprising grinding the dried iron oxide pigment in a jet mill with air as the grinding medium and with a water content of from about 1 to 6% by weight based on the iron oxide black pigment input to the process.
摘要翻译：通过改进的方法制备可用作漆和塑料着色颜料的氧化铁黑色颜料，其中由沉淀处理剂获得的细碎的氧化铁黑色悬浮液将苯胺方法过滤，洗涤，干燥和研磨，其中包括研磨干燥的氧化铁颜料在喷射式研磨机中以空气作为研磨介质，并且基于输入到该方法的氧化铁黑色颜料，含水量为约1至6重量％。

3. 发明授权

US4443264A Halogen-free zinc ferrite yellow pigments containing alumina and phosphorus oxide and production 失效
标题翻译：无卤锌铁氧体黄色颜料含氧化铝和氧化磷并生产
公开(公告)号：US4443264A
公开(公告)日：1984-04-17
申请号：US413002
申请日：1982-08-30
申请人： Franz Hund , Willi Hennings , Horst Brunn , Peter Kresse , Wolfgang Rambold
发明人： Franz Hund , Willi Hennings , Horst Brunn , Peter Kresse , Wolfgang Rambold
IPC分类号： C08K9/00 , C01B25/37 , C01G49/00 , C08K3/10 , C09C1/00 , C09C1/22 , C09C1/24 , C09C1/40 , C09D7/00 , C09D7/12 , C04B31/02
CPC分类号： C08K3/10 , C09C1/22 , C09C1/40 , C01P2002/08 , C01P2006/60
摘要： A zinc ferrite pigment comprising, by weight, about 99.8 to 90% of ZnFe.sub.2 O.sub.4 and about 0.2 to 10% of the component system (1-x)Al.sub.2 O.sub.3 and xP.sub.2 O.sub.5 wherein 0
摘要翻译：一种锌铁氧体颜料，其包含按重量计约99.8至90％的ZnFe 2 O 4和约0.2至10％的组分体系（1-x）Al 2 O 3和xP 2 O 5，其中0

4. 发明授权

US4067747A Production of improved chromium oxide green pigment 失效
标题翻译：生产改性氧化铬绿色颜料
公开(公告)号：US4067747A
公开(公告)日：1978-01-10
申请号：US656035
申请日：1976-02-06
申请人： Manfred Mansmann , Wolfgang Rambold
发明人： Manfred Mansmann , Wolfgang Rambold
IPC分类号： C01G37/033 , C09C1/00 , C09C1/34
CPC分类号： C09C1/346 , C01P2006/60
摘要： A process for the production of chromium oxide green pigment comprising heating a mixture of ammonium dichromate with at least the stoichiometrically equivalent quantity of a sodium salt selected from the group consisting of chloride and sulfate over a period of at most about 15 minutes to a pigment-forming temperature of about 800 to 1100.degree. C in the presence of about 1 to 45% water based on the weight of the mixture, calcining the mixture at a temperature in the above-mentioned range, and separating the formed pigment from the salts. The mixture may be formed in situ by reaction of sodium dichromate with ammonium chloride or sulfate in the presence of water. The presence during calcining of organic modifiers such as sawdust or of boron compounds such as borax increases, tinting strength and disproportionately affect color. The pigments are brighter, and of higher tinting strength than heretofore produced.
摘要翻译：一种生产氧化铬绿色颜料的方法，其包括将至少在化学计量上等效量的选自氯化物和硫酸盐的钠盐的混合物与至少约15分钟的时间内加入重铬酸铵的混合物，基于混合物的重量，在约1〜45％的水的存在下，在约800〜1100℃的温度下，在上述范围的温度下煅烧混合物，并将形成的颜料与盐分离。混合物可以在水存在下通过使重铬酸钠与氯化铵或硫酸钠反应而原位形成。有机改性剂如木屑或硼化合物如硼砂在煅烧过程中的存在增加，着色强度和不成比例地影响颜色。颜料比以前生产的颜色更亮，颜色更强。

5. 发明授权

US4492600A Corrosion-inhibiting paints and lacquers 失效
标题翻译：防腐涂料和漆
公开(公告)号：US4492600A
公开(公告)日：1985-01-08
申请号：US398226
申请日：1982-07-14
申请人： Horst Brunn , Franz Hund , Wolfgang Rambold , Peter Kresse , Gerd von Szadkowski
发明人： Horst Brunn , Franz Hund , Wolfgang Rambold , Peter Kresse , Gerd von Szadkowski
IPC分类号： C09C3/00 , C09C1/00 , C09C3/08 , C09D5/08 , C04B9/02
CPC分类号： C09D5/082 , C09C1/00 , C01P2002/08 , C01P2004/84 , C01P2006/12
摘要： This invention relates to corrosion-inhibiting paints and lacquers containing pigments comprising an organic corrosion inhibitor intercalated into an inorganic matrix said pigment having the formula wherein ##EQU1## wherein Me(II)O is at least one divalent metal oxide;Me(III).sub.2 O.sub.3 is at least one trivalent metal oxide;A is at least one inorganic acid anhydride;I is at least one organic corrosion inhibitor;aq is from 0.5 to 9 moles of water; andx, y and z are whole or fractional numbers andx has a value of from 0 to 1,y has a value of from 0 to 0.7 andz has a value of from greater than 0 to 0.4,with the proviso that the organic corrosion inhibitor is at least 0.5% by weight of inorganic material a process for the production of these pigments and their use in paints, lacquers and lubricants.
摘要翻译：本发明涉及含有颜料的防腐涂料和含有颜料的漆，所述颜料包括插入无机基质中的有机腐蚀抑制剂，所述颜料具有下式：其中Me（II）O为至少一种二价金属氧化物; Me（III）2 O 3是至少一种三价金属氧化物; A是至少一种无机酸酐; 我至少有一种有机腐蚀抑制剂; 水溶液为0.5至9摩尔水; 并且x，y和z是整数或分数，x具有0至1的值，y具有0至0.7的值，z具有大于0至0.4的值，条件是有机防腐剂为无机材料的至少0.5重量％，用于生产这些颜料的方法及其在油漆，漆和润滑剂中的应用。

6. 发明授权

US4040860A Chromium oxide pigment from sodium chromate dihydrate plus ammonium salt 失效
标题翻译：铬酸钠二水合物加铵盐的氧化铬颜料
公开(公告)号：US4040860A
公开(公告)日：1977-08-09
申请号：US656040
申请日：1976-02-06
申请人： Manfred Mansmann , Wolfgang Rambold
发明人： Manfred Mansmann , Wolfgang Rambold
IPC分类号： C01G37/033 , C01G37/02 , C09C1/34
CPC分类号： C01G37/02 , C01P2006/60
摘要： In the production of chromium oxide green pigment by heating a substantially stoichiometrically equivalent mixture of sodium dichromate dihydrate and an ammonium salt selected from the group consisting of the sulfate and chloride, the improvement which comprises dry mixing sodium dichromate dihydrate having a particle size less than 2 mm with the ammonium salt having a particle size less than about 0.5 mm, heating the resulting mixture over a period of about 15 minutes to a pigment-forming temperature of about 800.degree. to 1100.degree. C, calcining the mixture at a temperature in that range, and separating the formed pigment from the salts. To the mixture prior to heating there may be added sodium hydroxide solution, boron compounds such as borax and/or organic modifiers such as sawdust which improve the color and tinting strength of the resulting pigment. The pigments are brighter, and of higher tinting strength than heretofore produced.
摘要翻译：在通过加热基本上化学计量当量的重铬酸钠二水合物和选自硫酸盐和氯化物的铵盐的混合物来生产氧化铬绿色颜料的改进包括干混合粒度小于2的重铬酸钠二水合物毫米，其中铵盐的粒度小于约0.5毫米，将所得混合物在约15分钟的时间内加热至约800至1100℃的颜料形成温度，在该范围内的温度下煅烧该混合物，并将形成的颜料与盐分离。在加热之前，可以向混合物中加入氢氧化钠溶液，硼化合物等硼化合物和/或诸如锯末的有机改性剂，改善所得颜料的着色和着色强度。颜料比以前生产的颜色更亮，颜色更强。

7. 发明授权

US4378252A Magnetic separation to improve purity of iron oxide pigments 失效
标题翻译：磁选分离提高氧化铁颜料的纯度
公开(公告)号：US4378252A
公开(公告)日：1983-03-29
申请号：US268291
申请日：1981-05-29
申请人： Peter Kiemle , Franz Hund , Ingo Pflugmacher , Wolfgang Rambold
发明人： Peter Kiemle , Franz Hund , Ingo Pflugmacher , Wolfgang Rambold
IPC分类号： C09C1/00 , B03C1/00 , C01B13/16 , C01G49/06 , C09C1/22 , C09C1/24 , C09C3/04
CPC分类号： C01G49/06 , B03C1/00 , C01B13/16 , C09C1/24 , C09C3/04 , C01P2006/60 , C01P2006/62 , C01P2006/65
摘要： A process for increasing the color purity of iron oxide pigment particles admixed with color-modifying impurities and obtained by the Penniman process or the aniline process, comprising introducing the particles into a magnetic field, and removing from the magnetic field two fractions of different magnetizability, the first fraction being iron oxide pigment particles of increased color purity and the second fraction being enriched in impurities.
摘要翻译：一种用于提高与改色杂质混合并通过Penniman方法或苯胺方法获得的氧化铁颜料颗粒的颜色纯度的方法，包括将颗粒引入磁场，并从磁场中除去两种不同磁化性的部分，第一部分是增加色纯度的氧化铁颜料颗粒，第二部分富含杂质。

8. 发明授权

US4235862A Production of low sulphur chromium (III) oxide 失效
标题翻译：生产低硫（III）氧化物
公开(公告)号：US4235862A
公开(公告)日：1980-11-25
申请号：US968588
申请日：1978-12-11
申请人： Wolfgang Rambold , Heinrich Heine , Bruno Raederscheidt , Gerhard Trenczek
发明人： Wolfgang Rambold , Heinrich Heine , Bruno Raederscheidt , Gerhard Trenczek
IPC分类号： C01G37/02 , C01G37/033
CPC分类号： C01G37/02 , C01P2006/80
摘要： A process for the production of low sulphur chromium(III) oxide comprising annealing at a calcining temperature from about 800.degree. C. to 1100.degree. C. a mixture of alkali metal chromate and about 0.7 to 0.96 times its molar amount of ammonium sulfate, and separating the chromium(III) oxide formed from the alkali metal salt. Advantageously the ammonium sulfate in the form of a concentrated solution is mixed with solid alkali metal dichromate and the mixture thereafter is adjusted prior to calcination to a water concentration of less than about 15% by weight of water.
摘要翻译：一种用于生产低硫（III）氧化物的方法，包括在煅烧温度为约800℃至1100℃下退火碱金属铬酸盐和约0.7至0.96倍摩尔量的硫酸铵的混合物，以及分离由碱金属盐形成的氧化铬（III）。有利地，将浓缩溶液形式的硫酸铵与固体碱金属重铬酸盐混合，然后在煅烧之前将混合物调节至水浓度小于约15重量％的水。

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