Method for analyzing aqueous ammonium carbamate solution, and method for operating unreacted gas absorber
    1.
    发明授权
    Method for analyzing aqueous ammonium carbamate solution, and method for operating unreacted gas absorber 有权
    用于分析氨基甲酸铵水溶液的方法和操作未反应的气体吸收剂的方法

    公开(公告)号:US08663995B2

    公开(公告)日:2014-03-04

    申请号:US13321529

    申请日:2010-05-12

    IPC分类号: F17D3/00 G01N33/18 G01N33/00

    摘要: There are provided a method for analyzing an aqueous ammonium carbamate solution whereby the composition of an unreacted-gas absorber outlet liquid can be specified in real time, and a method for operating an unreacted gas absorber by use of the same. The method for analyzing the composition of an aqueous ammonium carbamate solution includes determining ammonia component concentration, carbon dioxide component concentration, and water concentration of the aqueous ammonium carbamate solution, which is the unreacted-gas absorber outlet liquid in a urea production process, by using a correlation among viscosity, temperature, and carbon dioxide component concentration of the aqueous solution and a correlation among density, temperature, ammonia component concentration, and carbon dioxide component concentration of the aqueous solution, wherein the ammonia component concentration is a concentration of a sum of free ammonia and equivalent ammonia of ammonium carbamate which are contained in the aqueous solution, and the carbon dioxide component concentration is a concentration of equivalent carbon dioxide of ammonium carbamate contained in the aqueous solution.

    摘要翻译: 提供了一种用于分析氨基甲酸铵水溶液的方法,其中可以实时指定未反应气体吸收剂出口液体的组成,以及使用该方法操作未反应的气体吸收剂。 用于分析氨基甲酸铵水溶液的组成的方法包括在尿素生产过程中测定作为未反应气体吸收剂出口液体的氨基甲酸铵水溶液的氨组分浓度,二氧化碳组分浓度和水浓度,通过使用 水溶液的粘度,温度和二氧化碳组分浓度之间的相关性以及水溶液的密度,温度,氨组分浓度和二氧化碳组分浓度之间的相关性,其中氨组分浓度是 游离氨和氨水溶液中的氨基甲酸铵等量的氨,二氧化碳成分浓度是水溶液中含有的氨基甲酸铵的二氧化碳当量浓度。

    POLYORGANOSILOXANE COMPOSITION, CURED PRODUCT OF THE COMPOSITION, AND METHOD FOR PRODUCING THE COMPOSITION
    5.
    发明申请
    POLYORGANOSILOXANE COMPOSITION, CURED PRODUCT OF THE COMPOSITION, AND METHOD FOR PRODUCING THE COMPOSITION 失效
    聚烯烃氧基组合物,组合物固化产物及其组合物的制造方法

    公开(公告)号:US20110282086A1

    公开(公告)日:2011-11-17

    申请号:US13128509

    申请日:2009-11-06

    IPC分类号: C07F7/28 C07F7/18

    摘要: Disclosed is an organosiloxane composition which can be produced at low cost and is usable for bonding of glasses, metals and resins. The organosiloxane composition can provide a cured product exhibiting excellent heat resistance and cold resistance, while having high strength and high transparency. Specifically disclosed is a polyorganosiloxane composition containing (A) a polyorganosiloxane wherein at least one end of each molecule is modified with a silanol group, and (B) 0.5-4.0 moles of a metal alkoxide per 1 mole of the polyorganosiloxane, wherein the mean molecular weight (Mw) of the polyorganosiloxane according to the mass fraction is not more than 1,000. Also specifically disclosed are a cured product of the composition and a method for producing the composition.

    摘要翻译: 公开了可以低成本制造并且可用于玻璃,金属和树脂的结合的有机硅氧烷组合物。 有机硅氧烷组合物可以提供具有优异的耐热性和耐寒性的固化产品,同时具有高强度和高透明度。 具体公开了含有(A)聚有机硅氧烷的聚有机硅氧烷组合物,其中每个分子的至少一个末端用硅烷醇基改性,和(B)每1摩尔聚有机硅氧烷0.5-4.0摩尔金属醇盐,其中平均分子量 聚有机硅氧烷的质量分数的重量(Mw)不大于1,000。 还具体公开了组合物的固化产物和该组合物的制造方法。

    POLYORGANOSILOXANE COMPOSITION AND CURED PRODUCTION THEREOF
    6.
    发明申请
    POLYORGANOSILOXANE COMPOSITION AND CURED PRODUCTION THEREOF 有权
    聚硅氧烷组合物及其固化生产

    公开(公告)号:US20110207864A1

    公开(公告)日:2011-08-25

    申请号:US13124492

    申请日:2009-10-22

    IPC分类号: C08K5/11 C08K5/07

    摘要: Disclosed are: a polyorganosiloxane composition which can be cured into a product having high strength and has little influence on the environment; and a cured product of the polyorganosiloxane composition. Specifically disclosed are: a polyorganosiloxane composition comprising (A) a polyorganosiloxane in which at least one end in the molecule is modified with a silanol, (B) a titanium alkoxide in an amount of 0.01 to 2 moles relative to 1 mole of the polyorganosiloxane, and (C) an α-hydroxycarbonyl compound or a hydroxycarboxylic acid ester in an amount of 0.01 to 2 moles relative to 1 mole of the polyorganosiloxane; and a cured product of the polyorganosiloxane composition.

    摘要翻译: 公开了一种聚有机硅氧烷组合物,其可以固化成具有高强度并且对环境影响很小的产品; 和聚有机硅氧烷组合物的固化产物。 具体公开的是:聚有机硅氧烷组合物,其包含(A)聚有机硅氧烷,其中分子中的至少一个末端用硅烷醇改性,(B)相对于1摩尔聚有机硅氧烷0.01至2摩尔量的钛醇盐, 和(C)相对于1摩尔聚有机硅氧烷为0.01〜2摩尔的α-羟基羰基化合物或羟基羧酸酯; 和聚有机硅氧烷组合物的固化产物。

    Polyorganosiloxane composition and cured production thereof
    8.
    发明授权
    Polyorganosiloxane composition and cured production thereof 有权
    聚有机硅氧烷组合物及其固化生产

    公开(公告)号:US08455593B2

    公开(公告)日:2013-06-04

    申请号:US13124492

    申请日:2009-10-22

    摘要: Disclosed are: a polyorganosiloxane composition which can be cured into a product having high strength and has little influence on the environment; and a cured product of the polyorganosiloxane composition. Specifically disclosed are: a polyorganosiloxane composition comprising (A) a polyorganosiloxane in which at least one end in the molecule is modified with a silanol, (B) a titanium alkoxide in an amount of 0.01 to 2 moles relative to 1 mole of the polyorganosiloxane, and (C) an α-hydroxycarbonyl compound or a hydroxycarboxylic acid ester in an amount of 0.01 to 2 moles relative to 1 mole of the polyorganosiloxane; and a cured product of the polyorganosiloxane composition.

    摘要翻译: 公开了一种聚有机硅氧烷组合物,其可以固化成具有高强度并且对环境影响很小的产品; 和聚有机硅氧烷组合物的固化产物。 具体公开的是:聚有机硅氧烷组合物,其包含(A)聚有机硅氧烷,其中分子中的至少一个末端用硅烷醇改性,(B)相对于1摩尔聚有机硅氧烷0.01至2摩尔量的钛醇盐, 和(C)相对于1摩尔聚有机硅氧烷为0.01〜2摩尔的α-羟基羰基化合物或羟基羧酸酯; 和聚有机硅氧烷组合物的固化产物。

    METHOD FOR ANALYZING AQUEOUS AMMONIUM CARBAMATE SOLUTION, AND METHOD FOR OPERATING UNREACTED GAS ABSORBER
    9.
    发明申请
    METHOD FOR ANALYZING AQUEOUS AMMONIUM CARBAMATE SOLUTION, AND METHOD FOR OPERATING UNREACTED GAS ABSORBER 有权
    用于分析水溶性氨基甲酸铵溶液的方法和操作无气体吸收剂的方法

    公开(公告)号:US20120060931A1

    公开(公告)日:2012-03-15

    申请号:US13321529

    申请日:2010-05-12

    IPC分类号: F17D3/00 G01N33/18

    摘要: There are provided a method for analyzing an aqueous ammonium carbamate solution whereby the composition of an unreacted-gas absorber outlet liquid can be specified in real time, and a method for operating an unreacted gas absorber by use of the same. The method for analyzing the composition of an aqueous ammonium carbamate solution includes determining ammonia component concentration, carbon dioxide component concentration, and water concentration of the aqueous ammonium carbamate solution, which is the unreacted-gas absorber outlet liquid in a urea production process, by using a correlation among viscosity, temperature, and carbon dioxide component concentration of the aqueous solution and a correlation among density, temperature, ammonia component concentration, and carbon dioxide component concentration of the aqueous solution, wherein the ammonia component concentration is a concentration of a sum of free ammonia and equivalent ammonia of ammonium carbamate which are contained in the aqueous solution, and the carbon dioxide component concentration is a concentration of equivalent carbon dioxide of ammonium carbamate contained in the aqueous solution.

    摘要翻译: 提供了一种用于分析氨基甲酸铵水溶液的方法,其中可以实时指定未反应气体吸收剂出口液体的组成,以及使用该方法操作未反应的气体吸收剂。 用于分析氨基甲酸铵水溶液的组成的方法包括在尿素生产过程中测定作为未反应气体吸收剂出口液体的氨基甲酸铵水溶液的氨组分浓度,二氧化碳组分浓度和水浓度,通过使用 水溶液的粘度,温度和二氧化碳组分浓度之间的相关性以及水溶液的密度,温度,氨组分浓度和二氧化碳组分浓度之间的相关性,其中氨组分浓度是 游离氨和氨水溶液中的氨基甲酸铵等量的氨,二氧化碳成分浓度是水溶液中含有的氨基甲酸铵的二氧化碳当量浓度。