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1. 发明申请

US20120123087A1 METHOD FOR PRODUCING CRUDE TALL OIL BY SOAP WASHING WITH CALCIUM CARBONATE REMOVAL 有权
标题翻译：通过用碳酸钙去除的洗涤剂生产原油的方法
公开(公告)号：US20120123087A1
公开(公告)日：2012-05-17
申请号：US13302471
申请日：2011-11-22
申请人： Robert E. BOWLES , C. Douglas Foran , Joseph H. GRIFFIN , F. Edwin SWANN
发明人： Robert E. BOWLES , C. Douglas Foran , Joseph H. GRIFFIN , F. Edwin SWANN
IPC分类号： B01D17/00
CPC分类号： C11B13/005 , C11B13/02 , Y02W30/74
摘要： A method for producing crude tall oil from black liquor soap while removing calcium carbonate and lignates is disclosed. Black liquor soap is first combined with an alkaline ash medium having a lower concentration of lignates and inorganic solids than the black liquor soap, to form washed tall oil soap, fortified brine, lignates, and calcium carbonate. The washed tall oil soap is then separated from the fortified brine, lignates, and calcium carbonate, by centrifugation, decantation, filtration, settling, or a combination of these techniques. Acidification of the washed tall oil soap gives crude tall oil and a spent acid mixture. The crude tall oil is separated from the spent acid. The spent acid is made alkaline, and at least a portion of it is returned for use as alkaline wash medium. The method avoids accumulation of calcium sulfate in acidulation units.
摘要翻译：公开了一种从黑液皂生产粗妥尔油同时除去碳酸钙和木质素的方法。首先将黑液皂与具有比黑液皂更低的木质素和无机固体浓度的碱性灰分介质组合，以形成洗涤的妥尔油皂，强化的盐水，木质素和碳酸钙。然后通过离心，倾析，过滤，沉降或这些技术的组合将经洗涤的妥尔油皂与强化的盐水，木质素和碳酸钙分离。洗涤的妥尔油皂的酸化产生粗的妥尔油和废酸混合物。将粗的妥尔油与废酸分离。废酸被制成碱性，并且其中至少一部分被返回以用作碱性洗涤介质。该方法避免硫酸钙在酸化单位中积累。

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