公开(公告)号：US5021590A

公开(公告)日：1991-06-04

申请号：US485858

申请日：1990-02-22

申请人： Franco Mizia ,  Franco Rivetti ,  Ugo Romano

发明人： Franco Mizia ,  Franco Rivetti ,  Ugo Romano

IPC分类号： C07D307/86 ,  C07D317/24 ,  C07D317/46 ,  C07D317/64 ,  C07C125/067 ,  C07D307/78

CPC分类号： C07D317/46 ,  C07D307/86 ,  C07D317/24

摘要： A process is provided for the preparation of N-alkyl-carbamates by directly reacting low-molecular weight alkyl-isocyanates, in particular methyl isocyanate, and a substituted phenolic precursor in solution in the presence of a basic catalyst compound selected from the class of bicyclic amidines or bicyclic guanidines.

公开(公告)号：US4318862A

公开(公告)日：1982-03-09

申请号：US205949

申请日：1980-11-12

申请人： Ugo Romano ,  Franco Rivetti ,  Nicola Di Muzio

发明人： Ugo Romano ,  Franco Rivetti ,  Nicola Di Muzio

IPC分类号： C07C69/96 ,  B01J23/72 ,  B01J27/00 ,  B01J27/10 ,  B01J27/122 ,  C01B20060101 ,  C01B3/50 ,  C07B61/00 ,  C07C20060101 ,  C07C67/36 ,  C07C68/00 ,  C07C68/04 ,  C07C69/00

CPC分类号： C07C68/005 ,  Y02P20/142

摘要： A process for preparing dimethylcarbonate by reacting methanol with mixtures of carbon monoxide and oxygen which also contain hydrogen. The catalyst is constituted by a salt of a metal of groups IB, IIB or VIII of the periodic system, dissolved or dispersed in the reaction medium.It has been found that the hydrogen does not interfere in the reaction, so that a hydrogen-enriched gaseous mixture (synthesis gas) is withdrawn from the reactor. It is therefore particularly advantageous in that it produces dimethylcarbonate and at the same time provides hydrogen-enriched synthesis gas.

摘要翻译： 一种通过甲醇与还含有氢的一氧化碳和氧气的混合物制备碳酸二甲酯的方法。 催化剂由周期性体系的IB，IIB或VIII族金属的盐构成，溶解或分散在反应介质中。 已经发现氢气不会干扰反应，从而从反应器中排出富氢气体混合物（合成气体）。 因此，特别有利的是它产生碳酸二甲酯，同时提供富氢合成气。

公开(公告)号：US4230881A

公开(公告)日：1980-10-28

申请号：US894139

申请日：1978-04-06

申请人： Ugo Romano ,  Franco Rivetti

发明人： Ugo Romano ,  Franco Rivetti

IPC分类号： B01J23/44 ,  B01J31/00 ,  C07B61/00 ,  C07C69/36 ,  C07C67/36

CPC分类号： C07C69/36

摘要： A method for the preparation of organic esters of oxalic acid by reaction of carbon monoxide under pressure with the corresponding alcohol is disclosed, the improvement consisting in the use of a quite particular catalyst system. The catalyst is a binary system in which the principal member is a palladium complex and the co-catalyst is a compound, preferably an organic compound having an acidic nature, no matter how weak.

摘要翻译： 公开了一种通过一氧化碳在压力下与相应的醇反应来制备草酸的有机酯的方法，该改进包括使用相当特定的催化剂体系。 催化剂是二元体系，其中主要成员是钯络合物，助催化剂是化合物，优选具有酸性的有机化合物，无论多么弱。

公开(公告)号：US06992214B2

公开(公告)日：2006-01-31

申请号：US10220593

申请日：2001-02-01

申请人： Pietro Cesti ,  Aldo Bosetti ,  Franco Mizia ,  Marcella Notari ,  Marco Ricci ,  Franco Rivetti ,  Ugo Romano

发明人： Pietro Cesti ,  Aldo Bosetti ,  Franco Mizia ,  Marcella Notari ,  Marco Ricci ,  Franco Rivetti ,  Ugo Romano

IPC分类号： C07C263/04

CPC分类号： C07C263/04 ,  Y02P20/125 ,  C07C265/12

摘要： Integrated process for the preparation of aromatic isocyanates comprising: the reaction between an aromatic amine and an organiccarbonate in the presence of a catalyst selected from organic and inorganic salts of a metal selected from Zn, Sn, Pb, Cu; the removal of the catalyst; the passivation of the quantity of residual metal in the urethane formed in step a); the removal of the organic solvent and its optional recycling to step a) of the reaction; the evaporation of the aromatic urethane with partial pyrolysis; the complete pyrolysis of the urethane in gas phase; the recovery of the isocyanate.

公开(公告)号：US5457213A

公开(公告)日：1995-10-10

申请号：US73773

申请日：1993-06-08

申请人： Daniele Delledonne ,  Franco Rivetti ,  Ugo Romano

发明人： Daniele Delledonne ,  Franco Rivetti ,  Ugo Romano

IPC分类号： B01J31/12 ,  C07B61/00 ,  C07C68/00 ,  C07C69/96 ,  C07D317/36 ,  C07D317/38

CPC分类号： C07D317/38 ,  C07C68/005 ,  C07D317/36

摘要： Catalytic procedure for the preparation of an organic carbonate having general formula (I): ##STR1## wherein R represents a C.sub.1 -C.sub.10 alkyl radical, linear or branched, or a C.sub.5 -C.sub.8 cycloalkyl radical; or of a cyclic organic carbonate having general formula (II): ##STR2## wherein R' represents a C.sub.2 -C.sub.5 alkylene radical, linear or branched; including the reacting of an aliphatic or cyclo-aliphatic alcohol having general formula (III):R--OH (III)or an aliphatic diol having general formula (IV):HO--R'--OH (IV)wherein R and R' have the meaning described above, with carbon monoxide and oxygen, in the presence of a catalyst composed of a cobalt(II) or cobalt(III) ion and an organic binder containing at least one oxygen atom, characterized in that the process is carried out in the presence of at least one reaction coadjuvant selected from the following groups of linear or cyclic compounds: ureas, nitriles, amides, phosphoramides, sulphones, sulphoxides, carbamates.

摘要翻译： 用于制备具有通式（I）的有机碳酸酯的催化方法：其中R表示直链或支链的C 1 -C 10烷基或C 5 -C 8环烷基; 或具有通式（II）的环状有机碳酸酯：其中R'表示直链或支链的C 2 -C 5亚烷基; 包括具有通式（III）的脂族或环脂族醇：R-OH（III）或具有通式（IV）的脂族二醇：HO-R'-OH（IV）其中R和R'具有 在由钴（II）或钴（III）离子组成的催化剂和含有至少一个氧原子的有机粘合剂存在下，用上述一氧化碳和氧气的含义，其特征在于该方法在 至少一种选自以下一组线性或环状化合物的反应助剂的存在：脲，腈，酰胺，磷酰胺，砜，亚砜，氨基甲酸酯。

公开(公告)号：US5159099A

公开(公告)日：1992-10-27

申请号：US742061

申请日：1991-08-06

申请人： Ugo Romano ,  Franco Rivetti

发明人： Ugo Romano ,  Franco Rivetti

IPC分类号： B01J31/02 ,  C07B61/00 ,  C07C68/00 ,  C07C68/06 ,  C07C69/96

CPC分类号： C07C68/005

摘要： A continuous process is described for preparing a di-alkyl carbonate, e.g. dimethylcarbonate, via oxidative carbonylation of the corresponding alkanol, e.g. methanol, in the presence of a catalyst system containing a copper alkoxy-halide and water with a mole ratio of the water to the copper salt of between 0.25 and 2.0 and preferably between 0.5 and 1. In this manner extremely high di-alkyl carbonate formation rates are obtained.

摘要翻译： 描述了制备碳酸二烷基酯的连续方法，例如 碳酸二甲酯，通过相应的链烷醇的氧化羰基化反应。 甲醇，在含有铜烷氧基卤化物和水的催化剂体系存在下，水与铜盐的摩尔比为0.25-2.0，优选0.5-1。在这种情况下，极高的二烷基碳酸酯形成 费率得到。

公开(公告)号：US4849170A

公开(公告)日：1989-07-18

申请号：US246732

申请日：1988-09-20

申请人： Franco Mizia ,  Franco Rivetti ,  Ugo Romano ,  Luigi Rivola ,  Giuseppe Civardi

发明人： Franco Mizia ,  Franco Rivetti ,  Ugo Romano ,  Luigi Rivola ,  Giuseppe Civardi

IPC分类号： C23F11/12 ,  C23F11/14

CPC分类号： C23F11/141

摘要： A composition of matter for inhibition of stress corrosion stainless steels in contact with aqueous and/or polar organic solutions which contain chloride ions and optionally cuprous ions, comprising an aqueous or polar organic solution of a member selected from the group consisting of quaternary ammonium alkylcarbonates and quaternary ammonium benzylcarbonates having the general formula: ##STR1##

公开(公告)号：US4659845A

公开(公告)日：1987-04-21

申请号：US731538

申请日：1985-05-07

申请人： Franco Rivetti ,  Franco Mizia ,  Guido Garone ,  Ugo Romano

发明人： Franco Rivetti ,  Franco Mizia ,  Guido Garone ,  Ugo Romano

IPC分类号： C07B61/00 ,  A61K20060101 ,  B01J31/00 ,  B01J31/02 ,  B01J31/12 ,  C07C20060101 ,  C07C67/00 ,  C07C227/02 ,  C07C239/00 ,  C07C241/00 ,  C07C265/04 ,  C07C269/02 ,  C07C269/04 ,  C07C271/10 ,  C07C271/44 ,  C07D307/86 ,  C07D317/14 ,  C07D317/44 ,  C07D317/46 ,  C07D317/64 ,  C07C125/067

CPC分类号： C07C269/04 ,  C07C263/04 ,  C07C269/02 ,  Y02P20/582

摘要： Process for the production of N-methylcarbamates: ##STR1## (wherein RO- is the radical of a substituted phenol or of a naphthol), wherein:in a first reaction step methylamine and diphenyl carbonate are reacted with each other, operating in the liquid phase and as a continuous process, in order to form phenol and phenyl-N-methylurethane;in a second reaction step phenyl-N-methylurethane, within the related reaction mixture outcoming from the first step, is thermally continuously decomposed, to yield a gaseous stream containing methyl isocyanate, from which the components different than methyl isocyanate are condensed off;in a third step the methyl isocyanate stream, outcoming from the second step, after an optional preliminary condensation, is continuously fed and contacted with a solution of a substituted phenol or of a naphthol in an inert organic solvent, containing a basic catalyst, to form N-methylcarbamate (I);N-methylcarbamate (I) is finally recovered from the reaction mixture outcoming from the third step.

摘要翻译： 制备N-甲基氨基甲酸酯的方法：（I）（其中RO-是取代的苯酚或萘酚的基团），其中：在第一反应步骤中，甲胺和碳酸二苯酯彼此反应，操作 在液相中并作为连续方法，以形成苯酚和苯基-N-甲基氨基甲酸酯; 在第二反应步骤中，将从第一步骤出来的相关反应混合物内的苯基-N-甲基氨基甲酸酯热分解，得到含有异氰酸甲酯成分的甲基异氰酸酯的气态物流; 在第三步骤中，在任选的预缩合之后，将来自第二步骤的异氰酸甲酯流连续进料并与取代的苯酚或萘酚在含有碱性催化剂的惰性有机溶剂中的溶液接触以形成 N-甲基氨基甲酸酯（I）; 最终从第三步骤的反应混合物中回收N-甲基氨基甲酸酯（I）。

公开(公告)号：US4514339A

公开(公告)日：1985-04-30

申请号：US608984

申请日：1984-05-10

申请人： Ugo Romano ,  Franco Rivetti ,  Giacomo Sasselli

发明人： Ugo Romano ,  Franco Rivetti ,  Giacomo Sasselli

IPC分类号： C07C265/04 ,  C07C20060101 ,  C07C67/00 ,  C07C69/00 ,  C07C241/00 ,  C07C249/00 ,  C07C263/00 ,  C07C263/04

CPC分类号： C07C263/04

摘要： Process for the production of alkyl isocyanates which can be defined by the general formula: R--N.dbd.C.dbd.O wherein R is an alkyl radical having from 1 to 4 carbon atoms by thermal decomposition of phenyl-N-alkyl urethans which can be defined by the general formula: ##STR1## wherein R has the above defined meaning. Said thermal decomposition is carried out without any substance having a catalytic activity being present in the decomposition reaction, by heating to a temperature of from 180.degree. C. to 210.degree. C. under the atmospherical pressure or a slightly reduced pressure, a mixture of phenol and phenyl-N-alkyl urethan, in a molar ratio of the former to the latter equal to or nearly equal to 1:1, removing by vaporization the phenol and the alkyl isocyanate from said vaporized products and maintaining in the reaction mixture, substantially throughout the thermal decomposition a molar ratio of phenol to phenyl-N-alkyl urethan not lower than about 1:1.

摘要翻译： 制备烷基异氰酸酯的方法，其可以由通式RN = C = O定义，其中R是通过苯基-N-烷基氨基甲酸酯的热分解具有1至4个碳原子的烷基，其可以由 通式：其中R具有上述定义的含义。 所述热分解在没有任何具有催化活性的物质在分解反应中进行，通过在大气压或稍微减压下加热至180℃至210℃的温度，苯酚 和苯基-N-烷基氨基甲酸酯以前者与后者的摩尔比等于或几乎等于1:1，通过蒸发从所述汽化产物中蒸发苯酚和异氰酸烷基酯并基本上保持在反应混合物中 苯酚与N-烷基氨基甲酸酯的摩尔比热分解不低于约1：1。

公开(公告)号：US5527943A

公开(公告)日：1996-06-18

申请号：US272229

申请日：1994-07-08

申请人： Franco Rivetti ,  Ugo Romano ,  Guido Garone ,  Maurizio Ghirardini

发明人： Franco Rivetti ,  Ugo Romano ,  Guido Garone ,  Maurizio Ghirardini

IPC分类号： C07C68/00 ,  C07C68/08 ,  C07C69/96

CPC分类号： C07C68/08 ,  C07C68/005

摘要： A method is described enabling HCl and possible entrained CuCl particulate to be removed from a gas-vapor stream leaving a dimethylcarbonate synthesis reactor. The contaminant removal is effected by one of the process fluids used in a small quantity.

摘要翻译： 描述了一种方法，其使HCl和可能夹带的CuCl颗粒从气 - 气流中除去，留下碳酸二甲酯合成反应器。 污染物去除是通过少量使用的工艺流体之一来实现的。