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1.发明授权
公开(公告)号：US4762695A
公开(公告)日：1988-08-09
申请号：US94074
申请日：1987-09-04
申请人： Hiroshi Endo , Shigeo Iiri , Masaru Hayashi , Tsutomu Yamashita , Satoshi Yamaguchi , Motoo Seimiya
发明人： Hiroshi Endo , Shigeo Iiri , Masaru Hayashi , Tsutomu Yamashita , Satoshi Yamaguchi , Motoo Seimiya
CPC分类号： C22B34/36 , B22F9/22 , C01G39/003 , C01G41/003 , C22B3/42 , C22B34/34 , Y02P10/234 , Y10S423/14
摘要： High-purity molybdenum or tungsten powder can be produced by a process comprising (a) decomposing a powder or an oxide powder of molybdenum or tungsten with hydrogen peroxide water; (b) bringing the resulting aqueous solution of molybdenum or tungsten into contact with a cation exchange resin; (c) concentrating the aqueous solution; and (d) reducing a concentrated solid material. By omitting reducing step (d), one can obtain high-purity molybdenum or tungsten oxide powders. Because the Mo and W powders and MoO.sub.3 and WO.sub.3 powders prepared by this invention are of an extremely high purity, they are useful as materials for targets of VLSI elements.
摘要翻译： 可以通过以下方法制备高纯度的钼或钨粉末：（a）用过氧化氢水分解钼或钨的粉末或氧化物粉末; （b）使所得到的钼或钨水溶液与阳离子交换树脂接触; （c）浓缩水溶液; 和（d）还原浓缩的固体物质。 通过省略步骤（d），可以获得高纯度的钼或氧化钨粉末。 由于通过本发明制备的Mo和W粉末和MoO 3和WO 3粉末具有非常高的纯度，因此它们可用作VLSI元素靶的材料。
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公开(公告)号：US4414124A
公开(公告)日：1983-11-08
申请号：US250555
申请日：1981-04-03
申请人： Hiroshi Endo , Masashi Awa , Shigeo Iiri , Toshihiko Oguchi , Isao Suzuki , Naoyuki Hirate , Masaru Hayashi
发明人： Hiroshi Endo , Masashi Awa , Shigeo Iiri , Toshihiko Oguchi , Isao Suzuki , Naoyuki Hirate , Masaru Hayashi
CPC分类号： H01F1/11 , C01G49/0036 , C01G49/0063 , C01G49/0072 , C01G49/009 , C01G51/006 , C01G53/006 , C04B35/2683 , C01P2002/52 , C01P2004/03 , C01P2004/22 , C01P2004/51 , C01P2004/54 , C01P2004/62 , C01P2006/42
摘要： Barium-ferrite series powders are prepared from an alkaline aqueous solution containing a prescribed ratio of ions of the metals equal to those contained in the powder. In the first stage, the alkaline aqueous solution is heated at a constant volume at 150.degree. to 300.degree. C. to precipitate a precursor of the barium-ferrite series powder. Then, the precursor is baked at 700.degree. to 1,000.degree. C. to crystallize the precursor.
摘要翻译： 钡 - 铁素体系粉末由含有规定比例的金属离子的碱性水溶液制备成等于粉末中所含的金属。 在第一阶段中，将碱性水溶液在150〜300℃恒定体积加热，析出钡铁氧体系粉末的前体。 然后，将前体在700℃至1000℃下烘烤以使前体结晶。
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3.发明授权
公开(公告)号：US5439564A
公开(公告)日：1995-08-08
申请号：US149827
申请日：1993-11-10
申请人： Shumpei Shimizu , Toshitsura Cho , Shigeo Iiri
发明人： Shumpei Shimizu , Toshitsura Cho , Shigeo Iiri
CPC分类号： B01J39/04 , C02F1/469 , Y10S423/14
摘要： The invention is a method of processing a waste liquid containing at least an organic quaternary ammonium hydroxide. The waste liquid is brought into contact with a cation-exchanging material so as to make the organic quaternary ammonium ions adsorbed by the material to thereby remove the ions from the liquid (adsorbing step), and optionally the cation-exchanged water obtained by the contact is again processed to separate and remove resist peelings and surfactants therefrom. The invention is also a method of processing the organic quaternary ammonium hydroxide-containing waste liquid for recovering a valuable substance of the organic quaternary ammonium hydroxide therefrom. The method comprises the adsorbing step and an eluting step of bringing an eluent into contact with the cation-exchanging material that has adsorbed the organic quaternary ammonium ions so as to elute the ions from the material followed by an electrolyzing step of electrolyzing the eluate obtained in the eluting step to recover an aqueous solution of the organic quaternary ammonium hydroxide. The anodic liquid drawn from the electrolytic cell in the electrolyzing step may be re-circulated to the eluting step to be used as an eluent therein.By the invention, an organic quaternary ammonium hydroxide-containing waste liquid may be processed efficiently and inexpensively to give a low-COD, clean processed water, which may be directly discharged into rivers and others. If desired, the valuable substance of the organic quaternary ammonium hydroxide may be recovered efficiently and inexpensively at a high purity level.
摘要翻译： 本发明是一种处理至少含有有机季铵氢氧化物的废液的方法。 使废液与阳离子交换材料接触，以使有机季铵离子被材料吸附，从而从液体中除去离子（吸附步骤），任选地通过接触获得的阳离子交换水 再次加工以分离并除去抗蚀剂剥离物和表面活性剂。 本发明也是一种处理有机季铵氢氧化物废液的方法，用于从其中回收有机季铵氢氧化物的有价值物质。 该方法包括吸附步骤和洗脱步骤，使洗脱液与吸附有机季铵离子的阳离子交换材料接触，以从材料中洗脱离子，然后电解所得的洗脱液的电解步骤 用于回收有机氢氧化季铵水溶液的洗脱步骤。 在电解步骤中从电解池中抽出的阳极液体可以再循环至洗脱步骤以用作其中的洗脱剂。 通过本发明，可以有效地且廉价地加工有机季铵氢氧化物废液，以得到可以直接排放到河流等中的低COD，清洁的加工水。 如果需要，有机季铵氢氧化物的有价值物质可以以高纯度水平有效和廉价地回收。
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公开(公告)号：US5545309A
公开(公告)日：1996-08-13
申请号：US438962
申请日：1995-05-11
申请人： Shumpei Shimizu , Toshitsura Cho , Shigeo Iiri
发明人： Shumpei Shimizu , Toshitsura Cho , Shigeo Iiri
CPC分类号： B01J39/04 , C02F1/469 , Y10S423/14
摘要： The invention is a method of processing a waste liquid containing at least an organic quaternary ammonium hydroxide. The waste liquid is brought into contact with a cation-exchanging material so as to make the organic quaternary ammonium ions adsorbed by the material to thereby remove the ions from the liquid (adsorbing step), and optionally the cation-exchanged water obtained by the contact is again processed to separate and remove resist peelings and surfactants therefrom. The invention is also a method of processing the organic quaternary ammonium hydroxide-containing waste liquid for recovering a valuable substance of the organic quaternary ammonium hydroxide therefrom. The method comprises the adsorbing step and an eluting step of bringing an eluent into contact with the cation-exchanging material that has adsorbed the organic quaternary ammonium ions so as to elute the ions from the material followed by an electrolyzing step of electrolyzing the eluate obtained in the eluting step to recover an aqueous solution of the organic quaternary ammonium hydroxide. The anodic liquid drawn from the electrolytic cell in the electrolyzing step may be re-circulated to the eluting step to be used as an eluent therein.By the invention, an organic quaternary ammonium hydroxide-containing waste liquid may be processed efficiently and inexpensively to give a low-COD, clean processed water, which may be directly discharged into rivers and others. If desired, the valuable substance of the organic quaternary ammonium hydroxide may be recovered efficiently and inexpensively at a high purity level.
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