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    • 9. 发明申请
    • MELT-CRYTALLIZATION SEPARATION AND PURIFICATION PROCESS
    • 熔融分离和纯化方法
    • WO2010019342A1
    • 2010-02-18
    • PCT/US2009/050821
    • 2009-07-16
    • BP CORPORATION NORTH AMERICA INC.WILSAK, Richard, A.ROBERTS, Scott, A.JANULIS, Rose, M.
    • WILSAK, Richard, A.ROBERTS, Scott, A.JANULIS, Rose, M.
    • C07C7/14
    • C07C7/14C07C15/08
    • Processes for separating a solid from a solids-liquids slurry under conditions that prevent ingress of molecular oxygen are advantageous where the presence of molecular oxygen would otherwise reduce efficiencies, contribute to limited product yields, and potentially compromise safe operation of the process or downstream unit operations. Among the various embodiments disclosed herein, is a process utilizing filter columns as solid-liquid separators in combination with crystallization and reslurry unit operations to recover a product component from an initial feed mixture of miscible components. Embodiments of the disclosed processes may include the separation and purification of a product component using a crystallizer in series with a filter column followed by a chemical reactor, using a reslurry drum in series with a filter column, and using a combination of crystallizers and/or reslurry drums in series with at least one filter column. The use of filter columns in such processes is particularly attractive because these columns, when operated under the conditions disclosed herein, limit the undesirable ingress of molecular oxygen into the various process streams, and further improve process efficiencies related to both product component recovery and operating costs.
    • 在防止分子氧进入的条件下将固体与固体液体浆料分离的方法是有利的,其中分子氧的存在否则会降低效率,有助于有限的产物产率,并潜在地危及该方法或下游单元操作的安全操作 。 在本文公开的各种实施方案中,是使用过滤柱作为固液分离器与结晶和再浆化装置操作相组合以从可混溶组分的初始进料混合物中回收产物组分的方法。 所公开的方法的实施方案可以包括使用结晶器与过滤器柱随后是化学反应器串联的结晶器分离和纯化产物组分,使用与过滤柱串联的重整浆鼓,并且使用结晶器和/或 与至少一个过滤柱串联重新重新排列。 在这种方法中使用过滤塔是特别有吸引力的,因为这些柱在本文公开的条件下操作时限制了分子氧不期望地进入各种工艺流中,并且进一步提高了与产品组分回收率和操作成本有关的工艺效率 。