Method of stress corrosion cracking mitigation for nuclear power plant structural materials
    11.
    发明授权
    Method of stress corrosion cracking mitigation for nuclear power plant structural materials 有权
    核电厂结构材料应力腐蚀开裂缓解方法

    公开(公告)号:US07864914B2

    公开(公告)日:2011-01-04

    申请号:US12363905

    申请日:2009-02-02

    IPC分类号: G21C9/00

    CPC分类号: G21C17/0225

    摘要: The object of this invention is to provide a method for mitigating a stress corrosion cracking of reactor structural material which makes it possible to suppress the rise in the main steam line dose rate without secondary effects such as a rise in the concentration of radioactive cobalt-60, etc. in the reactor water. Hydrogen and a reductive nitrogen compound containing nitrogen having a negative oxidation number (for example, hydrazine) are injected into the core water of boiling water nuclear power plant. By injecting the reductive nitrogen compound containing nitrogen having a negative oxidation number into the core water, the stress corrosion cracking of structural material of reactor can be mitigated without side reactions such as a rise in the concentration of cobalt-60, etc.

    摘要翻译: 本发明的目的是提供一种减轻反应堆结构材料的应力腐蚀开裂的方法,其可以抑制主蒸汽管线剂量率的上升而没有二次效应,例如放射性钴-60浓度的升高 等等在反应堆水中。 将氢和含有负氧化数的氮(例如肼)的还原氮化合物注入沸水核电厂的核心水中。 通过将含有负氧化数的氮的还原性氮化合物注入芯水中,可以缓解反应器结构材料的应力腐蚀开裂,而不会发生诸如钴-60等的浓度升高的副反应。

    Waterproof gypsum molded product
    14.
    发明授权
    Waterproof gypsum molded product 失效
    防水石膏成型品

    公开(公告)号:US4341560A

    公开(公告)日:1982-07-27

    申请号:US191824

    申请日:1980-09-26

    CPC分类号: C04B28/14 C04B2111/27

    摘要: The present invention provides a gypsum molded product having excellent waterproof properties without impaired strength by adding alkaline metal alkylsiliconates or phenylsiliconates together with calcium hydroxide or calcium oxide to gypsum; poly(.alpha.,.beta.-unsaturated carboxylic acid) may be used in combination with the above, if desired. According to the present invention, the preparation of a gypsum molded product, particularly a gypsum from desulfurization of exhaust gas, is contemplated.

    摘要翻译: 本发明提供一种具有优异的防水性能的石膏模制产品,而不会因为将强碱性金属烷基硅酸盐或苯基硅氧烷与氢氧化钙或氧化钙一起加入到石膏中而受损, 如果需要,聚(α,β-不饱和羧酸)可以与上述组合使用。 根据本发明,预期石膏模制产品,特别是废气脱硫的石膏的制备。

    Method of stress corrosion cracking mitigating for nuclear power plant structural materials
    15.
    发明授权
    Method of stress corrosion cracking mitigating for nuclear power plant structural materials 有权
    核电厂结构材料应力腐蚀开裂减轻方法

    公开(公告)号:US07869557B2

    公开(公告)日:2011-01-11

    申请号:US12354925

    申请日:2009-01-16

    IPC分类号: G21C9/00

    CPC分类号: G21C17/0225

    摘要: The object of this invention is to provide a method for mitigating a stress corrosion cracking of reactor structural material which makes it possible to suppress the rise in the main steam line dose rate without secondary effects such as a rise in the concentration of radioactive cobalt-60, etc. in the reactor water. Hydrogen and a reductive nitrogen compound containing nitrogen having a negative oxidation number (for example, hydrazine) are injected into the core water of boiling water nuclear power plant. By injecting the reductive nitrogen compound containing nitrogen having a negative oxidation number into the core water, the stress corrosion cracking of structural material of reactor can be mitigated without side reactions such as a rise in the concentration of cobalt-60, etc.

    摘要翻译: 本发明的目的是提供一种减轻反应堆结构材料的应力腐蚀开裂的方法,其可以抑制主蒸汽管线剂量率的上升而没有二次效应,例如放射性钴-60浓度的升高 等等在反应堆水中。 将氢和含有负氧化数的氮(例如肼)的还原氮化合物注入沸水核电厂的核心水中。 通过将含有负氧化数的氮的还原性氮化合物注入芯水中,可以缓解反应器结构材料的应力腐蚀开裂,而不会发生诸如钴-60等的浓度升高的副反应。

    METHOD OF STRESS CORROSION CRACKING MITIGATING FOR NUCLEAR POWER PLANT STRUCTURAL MATERIALS
    16.
    发明申请
    METHOD OF STRESS CORROSION CRACKING MITIGATING FOR NUCLEAR POWER PLANT STRUCTURAL MATERIALS 有权
    应力腐蚀破坏方法对核电厂结构材料的减轻

    公开(公告)号:US20090225928A1

    公开(公告)日:2009-09-10

    申请号:US12354925

    申请日:2009-01-16

    IPC分类号: G21C15/00

    CPC分类号: G21C17/0225

    摘要: The object of this invention is to provide a method for mitigating a stress corrosion cracking of reactor structural material which makes it possible to suppress the rise in the main steam line dose rate without secondary effects such as a rise in the concentration of radioactive cobalt-60, etc. in the reactor water. Hydrogen and a reductive nitrogen compound containing nitrogen having a negative oxidation number (for example, hydrazine) are injected into the core water of boiling water nuclear power plant. By injecting the reductive nitrogen compound containing nitrogen having a negative oxidation number into the core water, the stress corrosion cracking of structural material of reactor can be mitigated without side reactions such as a rise in the concentration of cobalt-60, etc.

    摘要翻译: 本发明的目的是提供一种减轻反应堆结构材料的应力腐蚀开裂的方法,其可以抑制主蒸汽管线剂量率的上升而没有二次效应,例如放射性钴-60浓度的升高 等等在反应堆水中。 将氢和含有负氧化数的氮(例如肼)的还原氮化合物注入沸水核电厂的核心水中。 通过将含有负氧化数的氮的还原性氮化合物注入芯水中,可以缓解反应器结构材料的应力腐蚀开裂,而不会发生诸如钴-60等的浓度升高的副反应。

    METHOD OF STRESS CORROSION CRACKING MITIGATION FOR NUCLEAR POWER PLANT STRUCTURAL MATERIALS
    17.
    发明申请
    METHOD OF STRESS CORROSION CRACKING MITIGATION FOR NUCLEAR POWER PLANT STRUCTURAL MATERIALS 有权
    核电厂结构材料应力腐蚀开裂缓解方法

    公开(公告)号:US20090190712A1

    公开(公告)日:2009-07-30

    申请号:US12363905

    申请日:2009-02-02

    IPC分类号: G21C9/00

    CPC分类号: G21C17/0225

    摘要: The object of this invention is to provide a method for mitigating a stress corrosion cracking of reactor structural material which makes it possible to suppress the rise in the main steam line dose rate without secondary effects such as a rise in the concentration of radioactive cobalt-60, etc. in the reactor water. Hydrogen and a reductive nitrogen compound containing nitrogen having a negative oxidation number (for example, hydrazine) are injected into the core water of boiling water nuclear power plant. By injecting the reductive nitrogen compound containing nitrogen having a negative oxidation number into the core water, the stress corrosion cracking of structural material of reactor can be mitigated without side reactions such as a rise in the concentration of cobalt-60, etc.

    摘要翻译: 本发明的目的是提供一种减轻反应堆结构材料的应力腐蚀开裂的方法,其可以抑制主蒸汽管线剂量率的上升而没有二次效应,例如放射性钴-60浓度的升高 等等在反应堆水中。 将氢和含有负氧化数的氮(例如肼)的还原氮化合物注入沸水核电厂的核心水中。 通过将含有负氧化数的氮的还原性氮化合物注入芯水中,可以缓解反应器结构材料的应力腐蚀开裂,而不会发生诸如钴-60等的浓度升高的副反应。

    Foamed gypsum moulded articles and production thereof
    18.
    发明授权
    Foamed gypsum moulded articles and production thereof 失效
    发泡石膏模制品及其生产

    公开(公告)号:US4330589A

    公开(公告)日:1982-05-18

    申请号:US262916

    申请日:1981-05-12

    摘要: Present invention provides foamed gypsum moulded articles excellent in sound absorbing property and production thereof. The foamed gypsum moulded article has many foam-cells, and the foam-cells are interconnected through fine passages. The fine passages are formed using as a decomposition catalyst of hydrogen peroxide for expansion a cobalt compound produced by pretreating a water soluble cobalt salt with hydrogen peroxide in the presence of alkali. The foamed gypsum moulded article is preferably applicable to an interial wall, ceiling panel, and the like.

    摘要翻译: 本发明提供吸音性优异的发泡石膏成型体及其制造方法。 发泡石膏模制品具有许多泡沫细胞,并且泡沫细胞通过细小的通道相互连接。 作为用于膨胀的过氧化氢的分解催化剂,在碱的存在下,通过用过氧化氢预处理水溶性钴盐而制备的钴化合物形成细通道。 发泡石膏成型体优选适用于中间壁,天花板等。

    Method for treating exhaust gases
    19.
    发明授权
    Method for treating exhaust gases 失效
    废气处理方法

    公开(公告)号:US4044102A

    公开(公告)日:1977-08-23

    申请号:US642625

    申请日:1975-12-19

    CPC分类号: B01D53/8631 B01D53/8625

    摘要: Apparatus for treating exhaust gases comprising a catalyst bed through which the exhaust gas is passed whereby nitrogen oxides and dust present therein are removed from the gas, said catalyst bed being designed such that the catalyst therein is discharged from the bed continuously or intermittantly while being fed in an amount that can compensate for the discharged amount, a heating device for heating the catalyst discharged from the bed to a temperature in a range from about 700.degree. to 1200.degree. C. for reactivation of the catalyst and separation of the dust accumulated on the bed surface and retained in the interstices between the catalyst particles therein, and a device for discharging sulfur dioxides produced during the course of heating the catalyst. This apparatus is very effective in simultaneously removing the nitrogen oxides and the dust from exhaust gases such as boiler exhaust gases.

    摘要翻译: 用于处理废气的设备,包括催化剂床,排气通过该催化剂床,其中存在的氮氧化物和粉尘从气体中除去,所述催化剂床被设计成使得其中的催化剂在进料期间连续地或间歇地从床排出 能够补偿排出量的加热装置,用于将从床排出的催化剂加热至约700℃至1200℃的温度的加热装置,用于催化剂的再活化和积聚在该催化剂上的粉尘的分离 床表面并保留在其中的催化剂颗粒之间的间隙中,以及用于排出在加热催化剂过程中产生的二氧化硫的装置。 该装置非常有效地同时去除诸如锅炉废气的废气中的氮氧化物和灰尘。

    Method for removing sulfur dioxide from waste gases
    20.
    发明授权
    Method for removing sulfur dioxide from waste gases 失效
    从废气中除去二氧化硫的方法

    公开(公告)号:US3983217A

    公开(公告)日:1976-09-28

    申请号:US506048

    申请日:1974-09-16

    IPC分类号: B01D53/50 B01D53/77 C01B17/00

    CPC分类号: B01D53/501

    摘要: A method for removing sulfur dioxide from waste gases by a wet oxidation-absorption method, which is characterized in that an aqueous solution of ammonium sulfate acidified with sulfuric acid at a pH range of 3 - 4 is used as the absorbent. The SO.sub.2 contained in the waste gases is absorbed with the aqueous solution of ammonium sulfate in an absorption tower and then oxidized with air or oxygen to be converted into sulfuric acid in an oxidation tower.

    摘要翻译: 通过湿式氧化吸收法从废气中除去二氧化硫的方法,其特征在于,使用在pH范围为3〜4的硫酸酸化的硫酸铵水溶液作为吸收剂。 废气中所含的SO2在吸收塔中被硫酸铵水溶液吸收,然后用空气或氧气氧化,在氧化塔中转化为硫酸。