PROCESS FOR THE PREPARATION OF URETHANES
    1.
    发明申请
    PROCESS FOR THE PREPARATION OF URETHANES 审中-公开
    制备URETHANES的方法

    公开(公告)号:WO1986005178A1

    公开(公告)日:1986-09-12

    申请号:PCT/US1986000411

    申请日:1986-02-25

    CPC classification number: C07C271/06

    Abstract: Process for preparing urethanes by reacting a solution of a nitrogen-containing organic compound and a hydroxyl-containing organic compound with carbon monoxide in the presence of a ruthenium catalyst. The selectivity of this process is increased by the use of methanol instead of various other alkanols, e.g. ethanol. Preferably the catalyst is a halide-free ruthenium catalyst, e.g. a ruthenium carbonyl complex.

    Abstract translation: 在钌催化剂存在下使含氮有机化合物和含羟基有机化合物的溶液与一氧化碳反应制备聚氨酯的方法。 该方法的选择性通过使用甲醇代替各种其它链烷醇而增加。 乙醇。 优选地,催化剂是不含卤化物的钌催化剂,例如 羰基钌络合物。

    CARBONYLATION PROCESS
    2.
    发明申请
    CARBONYLATION PROCESS 审中-公开
    碳化过程

    公开(公告)号:WO1986005179A1

    公开(公告)日:1986-09-12

    申请号:PCT/US1986000415

    申请日:1986-02-25

    Abstract: Process for carbonylating a nitrogen-containing organic compound, selected from the group consisting of nitro, nitroso, azo, and azoxy compounds, by reacting said nitrogen-containing organic compound, with carbon monoxide, wherein the improvement comprises the step of : (a) reacting said nitrogen-containing compound with carbon monoxide, in the presence of a primary amine and a catalyst, essentially free of redox active metal components selected from the group consisting of rhodium and ruthenium.

    Abstract translation: 通过使所述含氮有机化合物与一氧化碳反应来羰基化选自硝基,亚硝基,偶氮和偶氮氧化合物的含氮有机化合物的方法,其中所述改进包括以下步骤:(a) 在伯胺和催化剂的存在下使所述含氮化合物与一氧化碳反应,基本上不含选自铑和钌的氧化还原活性金属组分。

    PROCESS FOR THE PREPARATION OF URETHANES
    3.
    发明申请
    PROCESS FOR THE PREPARATION OF URETHANES 审中-公开
    制备URETHANES的方法

    公开(公告)号:WO1985001285A1

    公开(公告)日:1985-03-28

    申请号:PCT/US1984001437

    申请日:1984-09-11

    CPC classification number: C07C271/06

    Abstract: A process for preparing urethanes by reacting a solution of a nitrogen-containing organic compound and a hydroxyl-containing organic compound with carbon monoxide in the presence of a ruthenium catalyst. In one embodiment of the process of this invention, the ruthenium catalyst is a halide-free ruthenium catalyst and the rate of conversion and selectivity to urethane is increased by providing a primary amine in the reaction solution. In another embodiment, the rate of conversion and selectivity to urethane is increased by providing a bis-phosphine ruthenium compound as the catalyst.

    Abstract translation: 在钌催化剂存在下,通过使含氮有机化合物和含羟基的有机化合物的溶液与一氧化碳反应制备聚氨酯的方法。 在本发明方法的一个实施方案中,钌催化剂是不含卤化物的钌催化剂,通过在反应溶液中提供伯胺来提高氨基甲酸酯的转化率和选择性。 在另一个实施方案中,通过提供双膦钌化合物作为催化剂,提高了转化率和对氨基甲酸酯的选择性。

    METHOD OF PREPARING AMMONIA
    4.
    发明申请
    METHOD OF PREPARING AMMONIA 审中-公开
    制备氨基酸的方法

    公开(公告)号:WO1990000153A1

    公开(公告)日:1990-01-11

    申请号:PCT/DK1989000149

    申请日:1989-06-19

    Abstract: When producing ammonia in a conventional ammonia plant there is obtained a substantially improved process economy by incorporating a fuel cell into the ammonia plant. A gas stream rich in carbon dioxide, obtained during the production of ammonia, is passed to the cathode gas loop of the fuel cell; and/or a purged gas stream emanating from the process plant and containing one or more components usable as fuel for the fuel cell is fed to the anode chamber of the fuel cell. Finally, exhaust gas usable as fuel is passed from the anode chamber of the fuel cell to the front end of the process plant. An improved production of electricity is obtained in the fuel cell; and the stream rich in carbon dioxide formed in the ammonia plant is utilized, whereas normally it is a waste product.

    Abstract translation: 当在常规氨装置中生产氨时,通过在氨装置中加入燃料电池可获得显着提高的工艺经济性。 在生产氨期间获得的富含二氧化碳的气流被传递到燃料电池的阴极气体回路; 和/或从处理装置发出并含有可用作燃料电池的燃料的一种或多种组分的净化气流被供给到燃料电池的阳极室。 最后,作为燃料使用的废气从燃料电池的阳极室通到处理厂的前端。 在燃料电池中获得改善的电力生产; 并且利用在氨装置中形成的富含二氧化碳的物流,而通常它是废物。

    CRYSTALLINE ALUMINOSILICATE AND A METHOD FOR ITS PREPARATION
    5.
    发明申请
    CRYSTALLINE ALUMINOSILICATE AND A METHOD FOR ITS PREPARATION 审中-公开
    水晶铝酸钠及其制备方法

    公开(公告)号:WO1987004368A1

    公开(公告)日:1987-07-30

    申请号:PCT/DK1987000004

    申请日:1987-01-20

    CPC classification number: B01J21/16 B01J29/049 B01J2229/42 C01B33/28

    Abstract: Synthetic layered crystalline aluminosilicates which, apart from the possible presence of water of crystallization, have the general formula expressed as moles of oxides ratios: (M2/nO)x : (SiO2)y : (Al2O3)z, where M represents one or more n-valent cations selected amongst sodium, potassium and any other cations capable of replacing sodium or potassium by ion-exchange, the ratio y/z being between 15 and 300, the ratio x/z being determined from the criterion of electron neutrality between anions and cations, and wherein the structural aluminium is tetrahedrally coordinated in crystal lattice, are suitable as catalysts for the preparation of higher hydrocarbons from a raw material containing lower olefins or oxygenates. These aluminosilicates are prepared from a synthesis mixture the composition of which, expressed as moles of oxides, is: SiO2/Al2O3: 5-500, preferably: 10-300; M2/nO/SiO2: 0.1-10, preferably: 0.1-2; OH/SiO2: 0.1-5, preferably: 0.2-4; H2O/SiO2: 5-200, preferably: 5-75. The synthesis mixture is held under autogenous pressure at a temperature of 80-270 DEG C for 4 hours to 100 days, preferably at 95-160 DEG C for 10 hours to 30 days.

    Abstract translation: 除了可能存在结晶水之外,合成层状结晶硅铝酸盐具有以氧化物摩尔数表示的通式:(M2 / nO)x:(SiO 2)y:(Al 2 O 3)z,其中M表示一个或多个 选自钠,钾和能够通过离子交换替代钠或钾的任何其它阳离子的n价阳离子,比率y / z在15和300之间,x / z是根据阴离子之间的电子中性标准确定的 和阳离子,并且其中结构铝在晶格中四面体配位,适合作为用于由含低级烯烃或含氧化合物的原料制备高级烃的催化剂。 这些铝硅酸盐由合成混合物制备,其组成以氧化物的摩尔数表示,为:SiO 2 / Al 2 O 3:5-500,优选为:10-300; M2 / nO / SiO2:0.1-10,优选:0.1-2; OH / SiO 2:0.1-5,优选0.2-4; H 2 O / SiO 2:5-200,优选5-75。 合成混合物在80-270℃的自生压力下保持4小时至100天,优选在95-160℃保持10小时至30天。

    PROCESS AND APPARATUS FOR EXOTHERMIC REACTIONS
    6.
    发明申请
    PROCESS AND APPARATUS FOR EXOTHERMIC REACTIONS 审中-公开
    过程反应的方法和装置

    公开(公告)号:WO1990009234A1

    公开(公告)日:1990-08-23

    申请号:PCT/DK1990000034

    申请日:1990-02-12

    Abstract: A cooled reactor for exothermic catalytic conversion of gaseous materials, e.g. for the oxo synthesis, for the conversion of hydrogen and nitrogen to form ammonia and for the reaction of carbon oxides with hydrogen to form methanol, comprises a cylindrical pressure shell (10), distributor means (34) for synthesis gas, at least one tube sheet (30) and one or more catalyst beds (20) provided with cooling tubes (38) for the indirect cooling of reacting gas. Each cooling tube (38) consists of an outer tube (4) provided with a heat exchanging outer wall (7); this outer tube surrounds and is coaxial with an inner tube (2) and hence defines an annular space the inner wall of which is provided with perforations (8) to direct the stream of cooling gas, which may consist of or contain components of the synthesis gas, to the annular space and along the heat exchanging wall. There is obtained a very rapid equalization of temperature differences in the catalyst bed, which causes an improved yield and hence makes it possible to decrease the amount of catalyst for a given process.

    SULFURIC ACID PROCESS AND APPARATUS
    7.
    发明申请
    SULFURIC ACID PROCESS AND APPARATUS 审中-公开
    硫酸工艺和装置

    公开(公告)号:WO1989012024A1

    公开(公告)日:1989-12-14

    申请号:PCT/DK1989000129

    申请日:1989-05-18

    CPC classification number: B01D53/8609 C01B17/76 C01B17/806 Y02C20/30

    Abstract: Flue gases etc. may contain SO2 which should be prevented from admission to the atmosphere. SO2 is oxidized to SO3 and condensed with steam to H2SO4-vapours which are condensed in vertical glass tubes cooled from the outside. In principle the condensate is collected near the bottom of the tubes. In the cooling process a mist of very small H2SO4 droplets is formed and tends to escape to the atmosphere. Environmental regulations continually increase the demands on reducing the amount of acid mist escaping. According to the invention an important method to achieve a reduction of the escape of acid mist is to pass the gas leaving each tube through an aerosol filter in gastight connection with the tube top. Such a filter may consist of acid resistant fibres or filaments having a thickness of 0.04-0.7 mm and may be arranged in specified manners to ensure a drop of pressure through below 20 mbar. Moreover, the sulfuric acid caught in the filter is caused to flow downwardly through the tube countercurrently with the feed gas. Various embodiments of filters and filter media for the purpose are disclosed. The sulfuric acid recovered is highly pure and highly concentrated.

    PURIFICATION OF SULPHIDE-CONTAINING GASES
    9.
    发明申请
    PURIFICATION OF SULPHIDE-CONTAINING GASES 审中-公开
    纯化含硫气体

    公开(公告)号:WO1990014876A1

    公开(公告)日:1990-12-13

    申请号:PCT/DK1990000115

    申请日:1990-05-03

    Abstract: The removal of sulphides from gas streams while using a solid absorbent containing tin, tin oxides or mixtures thereof and optionally a stabilizing component consisting of nickel, copper, cobalt, iron or oxides thereof takes place by contacting the sulphide-containing gas stream with the solid absorbent, which is expediently in the form of a carrier with the tin component and the stabilizing component; hereby the absorbent is sulphided and the gas stream desulphided. Subsequently the sulphided absorbents are regenerated by being contacted with a stream of steam. The regeneration process employed is substantially thermoneutral so that superheating and consequent sintering of the absorbent is avoided; moreover it is not necessary to operate at low temperatures, whereby the formation of sulphates as a by-product is avoided.

    A METHOD AND AN APPARATUS FOR CONTINUOUSLY PURIFYING AN OXYGEN-CONTAINING GAS FOR COMBUSTIBLE CONTAMINANTS
    10.
    发明申请
    A METHOD AND AN APPARATUS FOR CONTINUOUSLY PURIFYING AN OXYGEN-CONTAINING GAS FOR COMBUSTIBLE CONTAMINANTS 审中-公开
    用于连续净化可燃污染物的含氧气体的方法和装置

    公开(公告)号:WO1990004742A1

    公开(公告)日:1990-05-03

    申请号:PCT/DK1989000242

    申请日:1989-10-16

    CPC classification number: F23G7/07 F23G7/068

    Abstract: Combustible impurities in oxygen-containing offgases are burnt according to a method and by an apparatus of the type in which at least some of the heat of combustion is recovered by a regenerative heat exchange in two identical heat exchange zones (10, 11) containing a solid heat exchange material and separated by a combustion chamber (15). The air or gas to be purified flows through both of the heat exchange zones and by means of valves (1, 2, 3, 4) the direction of flow is changed periodically so that the two zones are alternately heated and cooled in periods of 0.1-60 minutes. The risk of discharge of unburnt combustible contaminants to the atmosphere is minimized by dividing the purified gas stream in the first 1-50 % of each period into two part streams of which one is discharged directly from the combustion chamber (15) to a recipient (22) whereas the other is passed through the heat exchange zone (10 or 11) being heated and from there recycled through a line (25 or 24) controlled by a valve (7 or 6) and combined with unpurified gas being passed to the heat exchange zone (11 or 10) being cooled.

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