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1. 发明授权

US4967014A Process for producing formaldehyde and derivatives thereof 失效
标题翻译：生产甲醛及其衍生物的方法
公开(公告)号：US4967014A
公开(公告)日：1990-10-30
申请号：US305596
申请日：1989-02-03
申请人： Junzo Masamoto , Junzo Ohtake , Mamoru Kawamura
发明人： Junzo Masamoto , Junzo Ohtake , Mamoru Kawamura
IPC分类号： C07C45/32 , C07C45/78 , C07C45/81 , C07C45/85 , C07C47/052
CPC分类号： C07C45/81 , C07C45/32 , C07C45/78 , C07C45/85
摘要： A process for formaldehyde production is disclosed comprising the steps of reacting methanol with formaldehyde to form methylal and then oxidizing the resulting methylal to obtain formaldehyde. Formaldehyde derivatives may also be produced. A dilute formaldehyde solution resulting from recovery of the product is recycled and used as feed material for the initial reaction step.

2. 发明授权

US5840826A Process for preparing aromatic polycarbonate 失效
标题翻译：制备芳族聚碳酸酯的方法
公开(公告)号：US5840826A
公开(公告)日：1998-11-24
申请号：US913781
申请日：1997-09-19
申请人： Kyosuke Komiya , Shinsuke Fukuoka , Mamoru Kawamura
发明人： Kyosuke Komiya , Shinsuke Fukuoka , Mamoru Kawamura
IPC分类号： C08G64/30 , C08G64/00
CPC分类号： C08G64/307
摘要： Disclosed is a method for producing an aromatic polycarbonate which comprises subjecting to a transesterification reaction in a polymerizer at least one polymerizable material selected from a molten monomer mixture of an aromatic dihydroxy compound and a diaryl carbonate, and a molten prepolymer obtained from the monomer mixture, wherein a liquid mass of polymerizable material being transesterified in the polymerizer has an exposed surface, and wherein the transesterification reaction of the liquid mass of polymerizable material is performed under reaction conditions such that the following formula (1) is satisfied: log (S/V).gtoreq.2.times.10.sup.-5 .times.Mn+0.8 (1) wherein S represents an evaporation surface area (m.sup.2) which is defined as the area (m.sup.2) of the exposed surface of the liquid mass of polymerizable material; V represents the volume (m.sup.3) of the liquid mass of polymerizable material in the polymerizer; and Mn represents the number average molecular weight of the aromatic polycarbonate to be produced.
摘要翻译： PCT No.PCT / JP96 / 03658 Sec。 371日期：1997年9月19日 102（e）1997年9月19日PCT PCT 1996年12月13日PCT公布。公开号WO97 / 22650 PCT 日期：1997年6月26日公开是一种芳族聚碳酸酯的制造方法，其特征在于，在聚合器中进行酯交换反应，所述酯交换反应是选自芳香族二羟基化合物和碳酸二芳基酯的熔融单体混合物中的至少一种聚合性物质和得到的熔融预聚物从聚合反应器中酯交换的可聚合材料的液体物质具有暴露的表面，并且其中可聚合材料的液体物质的酯交换反应在满足以下公式（1）的反应条件下进行： log（S / V）> / = 2x10-5x + E，ovs M + EE n + 0.8（1）其中S表示蒸发表面积（m2），其定义为暴露表面的面积（m2）可聚合材料液体; V表示聚合反应器中可聚合材料的液体体积的体积（m3）; 和+ E，ovs M + EE n表示待生产的芳族聚碳酸酯的数均分子量。

3. 发明授权

US5847189A Method for continuously producing a dialkyl carbonate and a diol 失效
标题翻译：连续生产碳酸二烷基酯和二醇的方法
公开(公告)号：US5847189A
公开(公告)日：1998-12-08
申请号：US930700
申请日：1997-10-16
申请人： Masahiro Tojo , Shinsuke Fukuoka , Mamoru Kawamura
发明人： Masahiro Tojo , Shinsuke Fukuoka , Mamoru Kawamura
IPC分类号： C07C29/128 , C07C68/06
CPC分类号： C07C29/128 , C07C68/065
摘要： Disclosed is a method for continuously producing a dialkyl carbonate and a diol, comprising: (1) feeding a cyclic carbonate and an aliphatic monohydric alcohol to a continuous multi-stage distillation column, and effecting a transesterification in the presence of a catalyst in the multi-stage distillation column and/or at least one transesterification reactor which communicates fluid-tightly with the distillation column, while continuously withdrawing a low boiling point gaseous mixture containing the produced dialkyl carbonate from a upper portion of the distillation column and a high boiling point liquid mixture from a lower portion of the distillation column; and (2) continuously feeding water and the high boiling point mixture to a hydrolysis reactor, to thereby effect a continuous hydrolysis of the unreacted cyclic carbonate contained therein and produce a diol and carbon dioxide. By the method of the present invention, it becomes possible to produce a dialkyl carbonate and a high purity diol, with high productivity, even when the feedstock aliphatic monohydric alcohol contains a concomitant dialkyl carbonate.
摘要翻译： PCT No.PCT / JP96 / 03746 Sec。 371日期：1997年10月16日 102（e）日期1997年10月16日PCT 1996年12月20日PCT公布。公开号WO97 / 23445 日期1997年7月3日公开是一种连续生产碳酸二烷基酯和二醇的方法，包括：（1）向连续多级蒸馏塔中加入环状碳酸酯和脂肪族一元醇，并进行酯交换反应多级蒸馏塔中的催化剂和/或至少一种与蒸馏塔流体紧密连通的酯交换反应器，同时从蒸馏塔的上部连续抽出含有生成的碳酸二烷基碳酸酯的低沸点气态混合物，来自蒸馏塔下部的高沸点液体混合物; 和（2）将水和高沸点混合物连续供给到水解反应器中，从而使其中所含的未反应的环状碳酸酯的连续水解产生二醇和二氧化碳。通过本发明的方法，即使当原料脂族一元醇含有伴随的碳酸二烷基酯时，也可以以高生产率制备碳酸二烷基酯和高纯度二醇。

4. 发明授权

US5656557A Process for producing various gases for semiconductor production factories 失效
公开(公告)号：US5656557A
公开(公告)日：1997-08-12
申请号：US351476
申请日：1995-02-09
申请人： Yuichi Hata , Jun Sasaki , Mamoru Kawamura , Maki Nakamura , Kazuya Taki , Shuichi Okada
发明人： Yuichi Hata , Jun Sasaki , Mamoru Kawamura , Maki Nakamura , Kazuya Taki , Shuichi Okada
IPC分类号： B01D53/04 , B01D53/26 , C01B13/02 , C01B21/04 , F25J3/04 , F25J3/08 , H01L21/673 , H01L21/677 , C01B21/00
CPC分类号： F25J3/04163 , C01B13/0288 , C01B21/0494 , F25J3/04084 , F25J3/04157 , F25J3/04169 , F25J3/0426 , F25J3/04284 , F25J3/044 , F25J3/04478 , F25J3/04496 , F25J3/04533 , F25J3/04612 , F25J3/04781 , F25J3/04836 , F25J3/04969 , C01B2210/0004 , C01B2210/0006 , C01B2210/0009 , C01B2210/0014 , C01B2210/005 , C01B2210/0053 , C01B2210/007 , F25J2200/72 , F25J2205/82 , F25J2210/42 , F25J2215/40 , F25J2215/42 , F25J2215/44 , F25J2235/04 , F25J2250/20 , F25J2250/42 , F25J2270/90 , F25J2290/62 , Y02C10/08 , Y02P20/152
摘要： Disclosed is a production process and apparatus of high-purity air and various air material gases for semiconductor production factories that, together with enabling the production of high-purity air, also enables the production high-purity nitrogen simultaneous to the production of oxygen-rich air as the finished product. This is accomplished by compressing feed air to a pressure of 3 to 10 kg/cm.sup.2 G, introducing this compressed air into a catalyst tower (8) to convert the carbon monoxide, hydrocarbons and hydrogen contained in the feed air into carbon dioxide and water, and introducing the purified air into an adsorption tower (12a) or (12b) after cooling the heated air following catalytic reaction to remove carbon dioxide, water and other minute amounts of impurities by adsorption. A portion of the resulting purified air is removed as product high-purity air, while the remainder is introduced into a main heat exchanger (18) where it is cooled to substantially the liquefaction temperature. After cooling, the air is introduced into a single rectification tower (19) followed by liquefaction rectification. High-purity nitrogen is then removed from the top of said single rectification tower which is then obtained as product high-purity nitrogen after going through the main heat exchanger (18). On the other hand, oxygen-rich liquefied air is drawn out from the bottom of the single rectification tower (19). This oxygen-rich liquefied air is then introduced into a condenser-evaporator. (24) where it is vaporized and then drawn out. This drawn out air is then introduced into the main heat exchanger (18) where it is heated to an intermediate temperature and then removed. This oxygen-rich air is then introduced into an expansion turbine (35) where it is expanded and lowered in temperature. After generation of cold, the cold is recovered followed by obtaining of the product gas in the form of purified oxygen-rich air.

5. 发明授权

US5210268A Process for continuously producing an aromatic carbonate 失效
标题翻译：连续生产芳香碳酸盐的工艺
公开(公告)号：US5210268A
公开(公告)日：1993-05-11
申请号：US688588
申请日：1991-06-28
申请人： Shinsuke Fukuoka , Masahiro Tojo , Mamoru Kawamura
发明人： Shinsuke Fukuoka , Masahiro Tojo , Mamoru Kawamura
IPC分类号： C07C69/96 , B01D3/34 , C07C68/06
CPC分类号： C07C68/06
摘要： Disclosed is a process for producing an aromatic carbonate or aromatic carbonate mixture by a transesterification reaction between a starting material selected from a dialkyl carbonate, an alkyl aryl carbonate and a mixture thereof and a reactant selected from an aromatic hydroxy compound, an alkyl aryl carbonate and a mixture thereof, wherein the starting material and the reactant are continuously fed to a continuous multi-stage distillation column to effect a transesterification reaction therebetween in the presence of a catalyst in the distillation column, while continuously withdrawing the produced aromatic carbonate or aromatic carbonate mixture as a high boiling point product in a liquid form from a lower portion of the distillation column and continuously withdrawing the by-product as a low boiling point product in a gaseous form from an upper portion of the distillation column by distillation, thereby enabling the aromatic carbonate or aromatic carbonate mixture to be produced continuously. By the method of the present invention, an aromatic carbonate, which is useful as a material for the production of aromatic polycarbonates without using poisonous phosgene or as a material for the production of various isocyanates without using poisonous phosgene, can be produced not only at a high reaction rate but also in a high yield with a high selectivity.
摘要翻译： PCT No.PCT / JP90 / 01734 Sec。 371日期1991年6月28日 102（e）日期1991年6月28日PCT提交1990年12月28日PCT公布。出版物WO91 / 09832 日期：1991年7月11日。公开是通过在碳酸二烷基酯，碳酸烷基芳基酯和其混合物中选择的起始材料之间的酯交换反应和选自芳族羟基化合物，碳酸烷基芳基酯及其混合物，其中将起始原料和反应物连续加入到连续多级蒸馏塔中以在催化剂存在下在蒸馏塔中进行酯交换反应，同时连续地取出从蒸馏塔的下部产生作为液体形式的高沸点产物的芳族碳酸酯或芳族碳酸酯混合物，并从蒸馏塔的上部连续抽出作为气态形式的低沸点产物的副产物通过蒸馏，从而使芳族碳酸酯或芳族碳酸酯混合不断生产。通过本发明的方法，可以生产芳香族碳酸酯，其可用作不使用有毒光气制备芳族聚碳酸酯的材料或用于生产不使用有毒光气的各种异氰酸酯的材料，不仅在反应速度高，而且产率高，选择性高。

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