会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 6. 发明公开
    • 테레프탈산의 제조 방법
    • 生产过敏性酸和过敏性酸的方法
    • KR1020060041237A
    • 2006-05-11
    • KR1020067000971
    • 2004-07-16
    • 미쓰이 가가쿠 가부시키가이샤
    • 가토가즈히코
    • C07C51/43C07C51/42C07C51/487
    • C07C51/43C07C51/487C07C63/26
    • A method for producing terephthalic acid wherein an aqueous terephthalic acid solution is purified with a platinum group metal catalyst and then terephthalic acid is crystallized from the resultant aqueous solution, which comprises carrying out the crystallization in an agitating vessel which has, in the bottom portion thereof, an agitating blade being formed in a shape of an approximately trapezoidal plate and being capable of changing a rotating number; and a terephthalic acid product having a narrow particle size distribution. The above method allows the production with good efficiency of terephthalic acid crystals which are excellent in powder characteristics, slurry characteristics and reactivity, and can be controlled with respect to the particle size distribution.
    • 一种生产对苯二甲酸的方法,其中用铂族金属催化剂纯化对苯二甲酸水溶液,然后从所得水溶液中结晶对苯二甲酸,其包括在其底部的搅拌容器中进行结晶 搅拌叶片形成为大致梯形板的形状,能够改变旋转数; 和具有窄粒度分布的对苯二甲酸产物。 上述方法允许以粉末特性,浆料特性和反应性优异的对苯二甲酸晶体的高效率生产,并且可以相对于粒度分布进行控制。