Method for enhancing the production capacity of a urea plant
    212.
    发明专利
    Method for enhancing the production capacity of a urea plant 审中-公开
    提高尿素工厂生产能力的方法

    公开(公告)号:JP2014169300A

    公开(公告)日:2014-09-18

    申请号:JP2014084868

    申请日:2014-04-16

    CPC classification number: C07C273/12

    Abstract: PROBLEM TO BE SOLVED: To provide a method for enhancing the capacity of a urea plant capable of enhancing the respective capacities of a high-pressure synthesis zone and a urea recovery zone alone.SOLUTION: In the provided method for enhancing the production capacity of urea overall, a melamine plant is additionally installed within an urea plant including: a compression zone of carbon dioxide and ammonia provided as raw ingredients; a high-pressure synthesis zone of urea; a urea recovery zone for forming a molten urea; and, optionally, a granulating zone. The additional melamine plant is installed so as to feed, entirely or partially into the melamine plant, the molten urea obtained from the urea recovery zone of the urea plant and to return, entirely or partially to the high-pressure synthesis zone and/or urea recovery zone of the urea plant, a residual gas from the melamine plant.

    Abstract translation: 要解决的问题:提供一种提高能够提高高压合成区和尿素回收区的容量的尿素装置的容量的方法。解决方案:提供尿素生产能力的方法 总的来说,三聚氰胺装置另外安装在尿素装置内,包括:作为原料提供的二氧化碳和氨的压缩区; 尿素高压合成区; 用于形成熔融尿素的尿素回收区; 和任选的造粒区。 另外的三聚氰胺装置被安装成从尿素装置的尿素回收区获得的熔融尿素完全或部分地进入三聚氰胺装置,并且完全或部分地返回到高压合成区和/或尿素 尿素厂的回收区,来自三聚氰胺厂的残留气体。

    PACKAGE MADE FROM LIQUID POLYMER COMPOSITION

    公开(公告)号:JPH0376146A

    公开(公告)日:1991-04-02

    申请号:JP14881790

    申请日:1990-06-08

    Applicant: STAMICARBON

    Abstract: PURPOSE: To obtain a package having an optimal mechanical characteristics in which the possibility of damaging a wire on a carrier is minimized at the time of molding the package by imparting a liquid crystal polymer in a polymer composition with a specified pressure-flow index. CONSTITUTION: The package has an opening for containing an integrated circuit composed of an encapsulating element imparted to a carrier (lead frame) which can be sealed by means of a sealer. The encapsulating element is imparted to a preliminarily formed metal strip serving as a carrier. The metal strip has thickness of several mm to the maximum and made of copper or an iron/ nickel alloy and has higher temperature resistance. Polymer in a polymer composition preferably comprises a unit having oxybenzoyl and biphenoxy and it is produced from terephthalic acid and/or isophthalic acid. That polymer has mean pressure-flow index (PFI) value of maximum 8.5g/10min. The PFI value is a measure of workability and measured under a constant pressure using a rheometer.

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