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公开(公告)号：KR1019940002334B1
公开(公告)日：1994-03-23
申请号：KR1019910003054
申请日：1991-02-26
Applicant: 한국화학연구원
IPC: B01D1/30
Abstract: The crystalization cooling device consists of a hopper (1), double-pipe heat exchangers and multi-pipe heat exchangers, which are connected to the flanges formed on the top surface of the hopper. On each heat exchanger is a pneumatic cylinder (3) or (4) equipped with a scraper on the lower end of the rod, thereby powder particles attached to the wall are removed by friction.
Abstract translation: 结晶冷却装置由料斗（1），双管热交换器和多管热交换器组成，其与形成在料斗顶表面上的凸缘连接。 在每个热交换器上是在杆的下端装有刮刀的气动缸（3）或（4），从而通过摩擦除去附着在壁上的粉末颗粒。
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Patent Agency Ranking
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公开(公告)号：KR1019940009589B1
公开(公告)日：1994-10-15
申请号：KR1019910002860
申请日：1991-02-22
Applicant: 한국화학연구원
IPC: C07C255/51
Abstract: The method manufactures the isophthalonitrile from reacting isophthalic acid and ammonia. The manufacturing method comprises: A) synthesizing meta-cyanobenzoic acid from a isophthalic acid of 150-500μ powder and ammonia at 350-450 deg.C; B) converting to isophthalonitrile by a catalyst of active alumina or silica in reactor of a fluidized bed type at 350-450 deg.C.
Abstract translation: 该方法由间苯二甲酸和氨反应生产间苯二甲腈。 制备方法包括：A）在350-450℃下从间苯二甲酸150-500μ的粉末和氨合成间 - 氰基苯甲酸; B）在350-450℃的流化床类型的反应器中通过活性氧化铝或二氧化硅的催化剂转化为间苯二腈。
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