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1.发明授权Process for separating methyl substituted naphthalene by crystallization under pressure 失效在压力下通过结晶分离甲基取代萘的方法
公开(公告)号：US4992619A
公开(公告)日：1991-02-12
申请号：US320008
申请日：1989-03-07
申请人： Shunichi Koide , Shinji Aihara , Hiroshi Takeshita , Harumasa Tanabe , Masami Takao , Hitoshi Hatakeyama
发明人： Shunichi Koide , Shinji Aihara , Hiroshi Takeshita , Harumasa Tanabe , Masami Takao , Hitoshi Hatakeyama
摘要： The invention intends to separating a methyl derivative of naphthalene (2,6-dimethyl naphthalene or 2-methyl naphthalene) from a mixture material in a high purity more than 98 weight %. The starting material is preliminarily treated at a raised temperature up to 220.degree. c. at the highest and with LHSV of 0.1-6 Hr.sup.-1 in the presence of an acid catalyst usually used for olefin polymerization. The treated material is distillated to remove the polymerized impurities and to raise the naphthalene derivative content at least up to 50 weight %. And then the obtained material is subjected to the crystallization under a pressure of 500-2500 kgf/cm.sup.2 at a temperature of 80.degree.-150.degree. C. (for 2,6-DMN) or 10.degree.-35.degree. C. (for 2-MN).
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公开(公告)号：US5220098A
公开(公告)日：1993-06-15
申请号：US756792
申请日：1991-09-09
CPC分类号： C07C7/14
摘要： The present invention relates to a process for separating 2,7-DMN, characterized in that a mixture containing at least 50% by weight of 2,7-DMN and the other DMN isomers obtained by preliminarily concentrating a fraction in the range of 250.degree.-270.degree. C. of catalytically cracked petroleum oil is preliminarily adjusted to a temperature of 60.degree.-90.degree. C. to form a slurry containing the crystal of 2,7-DMN, which is placed in a tightly sealed pressure vessel, adiabatically pressurized to the range of 500-2,500 kgf/cm.sup.2 and solidified to form a state of co-existing of solid and liquid phases, liquid is then discharged under pressure from the solid-liquid co-existing system, the solid remaining in the vessel is pressed to discharge the liquid remaining between the solid particles, which are integrated to give 2,7-DMN having a purity of 98% by weight or more.
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公开(公告)号：US4044111A
公开(公告)日：1977-08-23
申请号：US685625
申请日：1976-05-12
申请人： Isao Furuta , Hiroshi Tamura , Masami Takao
发明人： Isao Furuta , Hiroshi Tamura , Masami Takao
摘要： The present invention provides a method of converting NO.sub.3.sup.- ions which are contained in denitration waste liquids to nonpoisonous N.sub.2 gas or to valuable by-products. In the method of the invention, concentrated sulfuric acid is added to the waste liquid which results from denitration of exhaust gases which contains calcium nitrate and calcium chloride to obtain a mixed solution of nitric acid, hydrochloric acid, sulfuric acid and calcium sulfate. The ratio of the chloride ions to nitrate ions in the mixed solution is adjusted within the range of Cl.sup.- /NO.sub.3.sup.- = 2-3; the mixed solution is heated to 110.degree. to 150.degree. C after adjusting the concentration of sulfuric acid in the solution to 10 to 70% by weight to thereby convert the mixed solution to a mixed gas essentially including NOCl, Cl.sub.2 and nitrogen oxides. The mixed gas is then passed through concentrated sulfuric acid having a concentration higher than 80% which is maintained at a temperature of 80.degree. to 150.degree. C to obtain a nitrosylsulfuric acid solution. A mixed gas containing SO.sub.2 and H.sub.2 O is passed into the thusly formed nitrosylsulfuric acid solution to obtain a mixed gas containing NO, NO.sub.2 and SO.sub.2 which is then introduced into a reducing solution to convert the nitrogen oxides to N.sub.2 gas.
摘要翻译： 本发明提供将硝酸废液中含有的NO 3 - 离子转化为无毒N 2气体或有价值的副产物的方法。 在本发明的方法中，向含有硝酸钙和氯化钙的废气脱硝所产生的废液中加入浓硫酸，得到硝酸，盐酸，硫酸，硫酸钙的混合溶液。 混合溶液中氯离子与硝酸根离子的比例调节在Cl- / NO3- = 2-3范围内; 将溶液中的硫酸浓度调整为10〜70重量％后，将混合溶液加热至110〜150℃，由此将混合溶液转化为基本上含有NOCl，Cl 2和氮氧化物的混合气体。 然后将混合气体通过浓度高于80％的浓硫酸，将其保持在80-150℃的温度下，得到亚硫酰基硫酸溶液。 将含有SO 2和H 2 O的混合气体进入如此形成的亚硝酰基硫酸溶液中，得到含有NO，NO 2和SO 2的混合气体，然后将其引入还原溶液中以将氮氧化物转化为N 2气体。
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公开(公告)号：US5580500A
公开(公告)日：1996-12-03
申请号：US297811
申请日：1994-08-30
申请人： Kazuo Muramatsu , Manabu Hisada , Hideki Yamamuro , Hideo Ashida , Satoru Takada , Masami Takao , Yoshihiro Hara , Nobuhiro Ota
发明人： Kazuo Muramatsu , Manabu Hisada , Hideki Yamamuro , Hideo Ashida , Satoru Takada , Masami Takao , Yoshihiro Hara , Nobuhiro Ota
IPC分类号： C04B35/524 , C01B31/00
CPC分类号： C04B35/524
摘要： A carbon substrate manufacturing method includes a hot molding step, a burn-carbonizing step, a hot isostatical pressure treatment step, and a mirror polishing step. In the hot molding step, molding is performed while heating thermosetting resin powders to be a hard carbon substrate after burn-carbonizing, where the thermosetting resin powders are of a particle size 150 .mu.m or more, HPF 80-150 mm, a moisture content 1.0-3.0 weight %, Fe, Ni, Si and Ca respectively 5 ppm or less. In the burn-carbonizing process, a disk shaped resin molded body is filled into a graphite cylinder and burn-carbonized by heating from the external while the condition therefor is maintained in that the disk shaped resin molded body is stacked holding therein a graphite spacer at every one sheet basis or at every plurality of sheet basis and is loaded on its top with a tungsten carbide weight, where the graphite spacer has a heat conductivity 100 kcal/m.hr..degree. C. or less, a bulk density 1.70-1.85, and a flatness degree 10 .mu.m or less.
摘要翻译： 碳基板制造方法包括热成型步骤，燃烧碳化步骤，热等压压力处理步骤和镜面抛光步骤。 在热成型工序中，在将热固化性树脂粉末在烧成碳化后作为硬质碳基板加热的同时进行成型，其中热固性树脂粉末的粒径为150μm以上，HPF为80-150mm，水分含量 1.0-3.0重量％，Fe，Ni，Si和Ca分别为5ppm以下。 在烧成碳化工序中，将圆盘状树脂成形体填充到石墨圆筒中，通过加热从外部进行燃烧碳化，同时保持其状态，将盘状树脂成型体层叠在一起，将石墨间隔件 每一片或多个片材基础，并以碳化钨重量装载在其顶部，其中石墨间隔物具有100kcal / m·hr的热导率。 ℃以下，体积密度1.70-1.85，平坦度10μm以下。
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公开(公告)号：US3979191A
公开(公告)日：1976-09-07
申请号：US544380
申请日：1975-01-27
申请人： Isao Furuta , Kazuhito Yagaki , Masami Takao
发明人： Isao Furuta , Kazuhito Yagaki , Masami Takao
CPC分类号： B01D53/56
摘要： Exhaust gases are denitrated by a method comprising removing NO from exhaust gases which comprises washing the exhaust gas with a first aqueous solution containing a chloride of Mg or Ca, and a hypochlorite of Mg or Ca, and washing said washed gas with a second aqueous solution of an alkali.
摘要翻译： 废气通过包括从排气中除去NO的方法进行脱硝，其包括用含有Mg或Ca的氯化物的第一水溶液和Mg或Ca的次氯酸盐洗涤废气，并用第二水溶液洗涤所洗涤的气体 的碱。
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6.发明授权
公开(公告)号：US5326607A
公开(公告)日：1994-07-05
申请号：US676569
申请日：1991-03-28
申请人： Kazuo Muramatsu , Nobuhiro Ohta , Shunsuke Takada , Motoharu Sato , Masami Takao , Hiroko Nagata , Satoru Takada
发明人： Kazuo Muramatsu , Nobuhiro Ohta , Shunsuke Takada , Motoharu Sato , Masami Takao , Hiroko Nagata , Satoru Takada
CPC分类号： C04B41/91 , C04B41/53 , C09K3/14 , G11B5/7305 , G11B5/82 , G11B5/84 , Y10T428/24355 , Y10T428/2457 , Y10T428/30
摘要： The surface of a blank for a textured amorphous carbon substrate is polished in a surface with a predetermined surface roughness, and then the blank with a polished surface is heated at a predetermined temperature in an oxidizing atmosphere to form minute irregularities in the polished surface through a reaction expressed by C+O.sub.2 =CO.sub.2 so that the surface is textured in an appropriate surface roughness. A randomly textured amorphous carbon substrate has a randomly textured surface with a surface roughness Ra in the range of 20 to 100 .ANG. and the ratio Ra.sub.2 /Ra.sub.1, where Ra.sub.1 is the surface roughness with respect to a circumferential direction, and Ra.sub.2 is the surface roughness with respect to a radial direction, in the range of 0.75 to 1.25 .ANG.. A concentrically textured amorphous carbon substrate has a concentrically textured surface with a surface roughness Ra in the range of 30 to 100 .ANG. or in the range of 40 to 200 .ANG., and the ratio Ra.sub.2 /Ra.sub.1 of 1.75 or greater.
摘要翻译： 在具有预定表面粗糙度的表面上抛光用于织构化非晶碳基底的坯料的表面，然后将具有抛光表面的坯料在氧化气氛中加热到预定温度，以在抛光表面中形成微小的凹凸，通过 由C + O 2 = CO 2表示的反应，使得表面以适当的表面粗糙度纹理化。 无规构造的无定形碳基板具有表面粗糙度Ra在20〜100范围内的无规纹理表面，Ra2 / Ra1的比率Ra1是相对于圆周方向的表面粗糙度，Ra2是表面粗糙度 相对于径向方向，在0.75至1.25的范围内。 同心纹理的非晶碳衬底具有表面粗糙度Ra在30至100安培范围内或40至200安培范围内的同心纹理表面，Ra2 / Ra1的比值为1.75或更高。
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