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公开(公告)号：US4601875A
公开(公告)日：1986-07-22
申请号：US532471
申请日：1983-09-15
CPC分类号： C22C1/0441 , H01F1/0577 , Y10T29/49076
摘要： Permanent magnetic materials of the Fe-B-R type are produced by:preparing an metallic powder having a mean particle size of 0.3-80 microns and a composition of, by atomic percent, 8-30% R (rare earth elements), 2-28% B, and the balance Fe, compacting, sintering at a temperature of 900-1200 degrees C., and aging at a temperature ranging from 350 degrees C. to the temperature for sintering. Co and additional elements M (Ti, Ni, Bi, V, Nb, Ta, Cr, Mo, W, Mn, Al, Sb, Ge, Sn, Zr, Hf) may be present.
摘要翻译： 通过以下方式制备Fe-BR型永久磁性材料：制备平均粒径为0.3-80微米的金属粉末，原子百分比为8-30％的R（稀土元素），2-28 ％B，余量为Fe，压实，烧结温度为900-1200摄氏度，并在350摄氏度至烧结温度下老化。 可以存在Co和附加元素M（Ti，Ni，Bi，V，Nb，Ta，Cr，Mo，W，Mn，Al，Sb，Ge，Sn，Zr，Hf）。
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22.发明申请METHOD FOR CONCENTRATING AQUEOUS 3-HYDROXY-2,2-DIMETHYLPROPANAL SOLUTION 有权浓缩水性3-羟基-2,2-二甲基丙烯酸溶液的方法公开(公告)号：US20130334028A1
公开(公告)日：2013-12-19
申请号：US14002442
申请日：2012-03-02
IPC分类号： C07C45/84
CPC分类号： C07C45/84 , C07D319/06 , C07C47/19
摘要： The present invention provides a method for concentrating an aqueous solution containing at least 3-hydroxy-2,2-dimethyl propanal and/or a dimer thereof, which includes subjecting a mixed solution of an aqueous solution containing at least 3-hydroxy-2,2-dimethyl propanal and/or a dimer thereof and an azeotropic agent to azeotropic distillation in a distillation column to distil off water and the azeotropic agent from the mixed solution, wherein the mixed solution is prepared by adding, as the azeotropic agent, at least one selected from the group consisting of 1-butanol, 2-butanol, 2-methyl-1-propanol, 1-pentanol and 1-hexanol to the aqueous solution.
摘要翻译： 本发明提供一种浓缩含有至少3-羟基-2,2-二甲基丙醛和/或其二聚体的水溶液的方法，其包括将含至少3-羟基-2,2-二甲基丙醛和/ 2-二甲基丙醛和/或其二聚体和共沸剂在蒸馏塔中共沸蒸馏以从混合溶液中蒸馏出水和共沸剂，其中混合溶液通过作为共沸剂至少加入至少 一种选自1-丁醇，2-丁醇，2-甲基-1-丙醇，1-戊醇和1-己醇的水溶液。
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公开(公告)号：US20130225889A1
公开(公告)日：2013-08-29
申请号：US13884378
申请日：2011-11-08
IPC分类号： C07C5/31
CPC分类号： C07C5/31 , C07C5/29 , C07C2527/1206 , C07C2527/1213 , C07C2603/20 , C07C2603/74 , C07C13/615
摘要： According to the present invention, a method can be provided for producing 1,3-dimethyladamantane represented by formula (2) by performing a skeletal isomerization reaction using, as catalysts, 0.5 to 1 .5 parts by weight of HF and 0.05 to 0.5 parts by weight of BF3 with respect to 1 part by weight of perhydroacenaphthene represented by formula (1) under a reaction temperature of 60 to 110° C.
摘要翻译： 根据本发明，可以提供通过使用0.5〜1.5重量份HF和0.05〜0.5重量份的作为催化剂的骨架异构化反应来制造式（2）所示的1,3-二甲基金刚烷的方法 的BF 3相对于由式（1）表示的1重量份全氢苊在60〜110℃的反应温度下进行。
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公开(公告)号：US07534311B2
公开(公告)日：2009-05-19
申请号：US10567502
申请日：2004-08-10
申请人： Hiroyuki Tomizawa , Yutaka Matsuura
发明人： Hiroyuki Tomizawa , Yutaka Matsuura
IPC分类号： H01F1/08
CPC分类号： C22C38/06 , B22F2003/248 , B22F2998/00 , B22F2998/10 , C22C33/0278 , C22C38/005 , C22C38/10 , C22C38/16 , C22C2202/02 , H01F1/0577 , H01F1/058 , B22F3/02 , B22F2202/05 , B22F9/08 , B22F9/023 , B22F9/04 , B22F3/10 , B22F3/24
摘要： A rare-earth sintered magnet according to the present invention, of which the main phase is an R2T14B type compound phase, includes: 27 mass % through 32 mass % of R, which is at least one rare-earth element that is selected from the group consisting of Nd, Pr, Tb, and Dy and that always includes at least one of Nd and Pr; 60 mass % through 73 mass % of T, which is either Fe alone or a mixture of Fe and Co; 0.85 mass % through 0.98 mass % of Q, which is either B alone or a mixture of B and C and which is converted-into B on a number of atoms basis when its mass percentage is calculated; more than 0 mass % through 0.3 mass % of Zr; at most 2.0 mass % of an additive element M, which is at least one element selected from the group consisting of Al, Cu, Ga, In and Sn; and inevitably contained impurities.
摘要翻译： 根据本发明的稀土类烧结磁体，其主相是R2T14B型化合物相，包括：27质量％〜32质量％的R，其是至少一种稀土元素，其选自 由Nd，Pr，Tb和Dy构成的组，并且总是包括Nd和Pr中的至少一种; 60质量％至73质量％的T，其为单独的Fe或Fe和Co的混合物; 0.85质量％至0.98质量％的Q，其为单独的B或B和C的混合物，并且当其质量百分比计算时，以多个原子转化为B; 大于0质量％至0.3质量％的Zr; 至多2.0质量％的添加元素M，其为选自Al，Cu，Ga，In和Sn中的至少一种元素; 并且不可避免地含有杂质。
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公开(公告)号：US06277275B1
公开(公告)日：2001-08-21
申请号：US09432185
申请日：1999-11-02
IPC分类号： B01D3506
CPC分类号： C02F1/482 , B01J19/087 , B01J2219/0852 , B01J2219/0862 , B01J2219/0866 , B01J2219/0877 , H01F7/0278
摘要： A magnetism applying circuit, which has a construction in which the different polarity ends of a pair of permanent magnets are connected to the respective ends of a yoke having a V-letter shape, is attached to a pipe so as to place the permanent magnets close to the pipe. Therefore, a magnetic fluid treatment apparatus which can reduce magnetic field leakage is formed.
摘要翻译： 具有将一对永磁体的不同极性端部连接到具有V字形状的磁轭的各端的结构的磁性施加电路安装在管道上，以将永久磁铁置于闭合状态 到管道。 因此，形成能够减小磁场泄漏的磁性流体处理装置。
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公开(公告)号：US5645651A
公开(公告)日：1997-07-08
申请号：US485183
申请日：1995-06-07
申请人： Setsuo Fujimura , Yutaka Matsuura , Masato Sagawa
发明人： Setsuo Fujimura , Yutaka Matsuura , Masato Sagawa
CPC分类号： C22C1/0441 , H01F1/057 , H01F1/0577
摘要： Magnetic materials comprising Fe, B, R (rare earth elements) and Co having a major phase of Fe--Co--B--R intermetallic compound(s) of tetragonal systems and sintered anisotropic permanent magnets consisting essentially of, by atomic percent, 8-30% R (at least one of rare earth elements inclusive of Y), 2-28% B, no less than 50% Co, and the balance being Fe with impurities. Those may contain additional elements M (Ti, Ni, Bi, V, Nb, Ta, Cr, Mo, W, Mn, Al, Sb, Ge, Sn, Zr, Hf) providing Fe--Co--B--R--M type materials and magnets.
摘要翻译： 包含Fe，B，R（稀土元素）和具有四方晶系的Fe-Co-BR金属间化合物的主相的Co的磁性材料和基本上由原子百分比组成的烧结各向异性永久磁体的磁性材料为8-30％ R（包括Y的稀土元素中的至少一种），2-28％B，不低于50％的Co，余量为含杂质的Fe。 这些可以含有Fe-Co-B-R-M型材料和磁铁的附加元素M（Ti，Ni，Bi，V，Nb，Ta，Cr，Mo，W，Mn，Al，Sb，Ge，Sn，Zr，Hf）。
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公开(公告)号：US5183516A
公开(公告)日：1993-02-02
申请号：US877400
申请日：1992-04-30
申请人： Masato Sagawa , Setsuo Fujimura , Yutaka Matsuura
发明人： Masato Sagawa , Setsuo Fujimura , Yutaka Matsuura
CPC分类号： H01F1/0577 , C22C1/0441 , H01F1/057
摘要： Magnetic materials comprising Fe, B and R (rare earth elements) having a major phase of an Fe-B-R intermetallic compound which may be a tetragonal system, wherein at least 50 at % of R consists of Nd and/or Pr, and anisotropic sintered permanent magnets consisting essentially of 8-30 at % R, 2-28 at %, B and the balance being Fe with impurities. These magnetic materials and permanent magnets may contain additional elements M (Ti, Ni, Bi, V, Nb, Ta, Cr, Mo, W, Mn, Al, Sb, Ge, Sn, Zr, Hf), thus providing Fe-B-R-M type materials and magnets.
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公开(公告)号：US5110377A
公开(公告)日：1992-05-05
申请号：US523338
申请日：1990-05-14
CPC分类号： H01F1/0577 , B22F3/24 , C22C1/0441
摘要： A process for producing permanent magnet materials, which comprises the steps of:forming an alloy powder having a mean particle size of 0.3-80 microns and composed of, in atomic percentage, 8-30% R (provided that R is at least one of rare earth elements including Y), 2-28% B, and the balance being Fe and inevitable impurities,sintering the formed body at a temperature of 900.degree.-1200.degree. C.,subjecting the sintered body to a primary heat treatment at a temperature of 750.degree.-1000.degree. C.,then cooling the resultant body to a temperature of no higher than 680.degree. C. at a cooling rate of 3.degree.-2000.degree. C./min, andfurther subjecting the thus cooled body to a secondary heat treatment at a temperature of 480.degree.-700.degree. C.35 MGOe, 40 MGOe or higher energy product can be obtained with specific compositions.
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公开(公告)号：US5096512A
公开(公告)日：1992-03-17
申请号：US224411
申请日：1988-07-26
申请人： Masato Sagawa , Setsuo Fujimura , Yutaka Matsuura
发明人： Masato Sagawa , Setsuo Fujimura , Yutaka Matsuura
CPC分类号： C22C1/0441 , H01F1/057 , H01F1/0577
摘要： Magnetic materials comprising Fe, B and R (rare earth elements) having a major phase of an Fe-B-R intermetallic compound which may be a tetragonal system, wherein at least 50 at % of R consists of Nd and/or Pr, and anisotropic sintered permanent magnets consisting essentially of 8-30 at % R, 2028 at %, B and the balance being Fe with impurities. These magnetic materials and permanent magnets may contain additional elements M (Ti, Ni, Bi, V, Nb, Ta, Cr, Mo, W, Mn, Al, Sb, Ge, Sn, Zr, Hf), thus providing Fe-B-R-M type materials and magnets.
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公开(公告)号：US4975129A
公开(公告)日：1990-12-04
申请号：US249654
申请日：1988-09-27
CPC分类号： H01F1/0577
摘要： A magnetically anisotropic sintered permanent magnet of the FeBR system in which R is sum of R.sub.1 and R.sub.2 wherein:R.sub.1 is Dy, Tb, Gd, Ho, Er, Tm and/or Yb, andR.sub.2 comprises 80 at % or more of Nd and Pr in R.sub.2 and the balance of at least one of other rare earth elements exclusive of R.sub.1,said system comprising by atomic percent, 0.05 to 5% of R.sub.1, 12.5 to 20% of R, 4 to 20% of B, and the balance being Fe with impurities. Additional elements M(Ti, Zr, Hf, Cr, Mn, Ni, Ta, Ge, Sn, Sb, Bi, Mo, Nb, Al, V, W,) may be present.
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