公开(公告)号：US06248911B1

公开(公告)日：2001-06-19

申请号：US09134445

申请日：1998-08-14

申请人： Carlos E. Canessa ,  Adam J. Brozzetti

发明人： Carlos E. Canessa ,  Adam J. Brozzetti

IPC分类号： C07C5147

CPC分类号： C11B3/001 ,  C11B3/10

摘要： A process and composition for removing trace contaminants from glyceride oils utilizes a metal-substituted silica xerogel having a pH of at least 7.5 to adsorb at least a portion of the contaminants. The process of the invention includes contacting a glyceride oil with such an adsorbent and then separating the adsorbent from the contaminant-depleted glyceride oil, for example, by filtration. The composition of the present invention includes a metal-substituted silica xerogel having a pH of at least 7.5 and an organic acid blended with the xerogel. Preferably, the organic acid is citric acid. Contaminants which can be removed from glyceride oils during the refinement of such oils by the adsorbent include phospholipids, soaps, detrimental metals, and chlorophyll.

摘要翻译： 用于从甘油酯油中除去痕量污染物的方法和组合物使用pH至少为7.5的金属取代二氧化硅干凝胶来吸附至少一部分污染物。 本发明的方法包括使甘油酯油与这种吸附剂接触，然后例如通过过滤将吸附剂与污染物贫乏的甘油酯油分离。 本发明的组合物包括pH至少为7.5的金属取代二氧化硅干凝胶和与干凝胶共混的有机酸。 优选地，有机酸是柠檬酸。 在通过吸附剂精制这种油的过程中，可以从甘油酯油中除去的污染物包括磷脂，肥皂，有害金属和叶绿素。

公开(公告)号：US06380428B1

公开(公告)日：2002-04-30

申请号：US09211791

申请日：1998-12-15

申请人： Santi Kulprathipanja ,  John D. Sherman ,  Amedeo Napolitano ,  John Markovs

发明人： Santi Kulprathipanja ,  John D. Sherman ,  Amedeo Napolitano ,  John Markovs

IPC分类号： C07C5147

CPC分类号： C07C51/47 ,  C07B63/00 ,  C07C53/08

摘要： For the removal of trace quantities of iodine-containing contaminants from corrosive liquid feed streams, an adsorbent with distinct advantages over prior-art materials is provided. The treatment method involves the use of a suitable, silica-rich zeolite which has been cation-exchanged with an iodine-reactive metal. This inorganic adsorbent may be used in unbound form, or it can bound with a substantially insoluble porous inorganic refractory metal oxide binder. Reactivation and regeneration techniques, which are generally incompatible with prior-art adsorbent materials, are also disclosed.

摘要翻译： 为了从腐蚀性液体进料流中除去痕量的含碘污染物，提供了与现有技术材料相比具有明显优点的吸附剂。 处理方法包括使用已经与碘反应性金属进行阳离子交换的合适的二氧化硅富沸石。 该无机吸附剂可以以未结合的形式使用，也可以与基本上不溶的多孔无机难熔金属氧化物粘合剂结合。 还公开了通常与现有技术吸附材料不相容的再活化和再生技术。

公开(公告)号：US06211408B1

公开(公告)日：2001-04-03

申请号：US09275717

申请日：1999-03-24

申请人： Charles B. Hilton

发明人： Charles B. Hilton

IPC分类号： C07C5147

CPC分类号： C08J5/20 ,  B01J39/05 ,  B01J39/19 ,  C08J2383/04

摘要： Macroporous, strong-acid polysiloxane ion exchange resins which have been converted to the silver or mercury form are utilized to remove iodides from non-aqueous organic media. In a particularly preferred method, hexyl iodide is removed from acetic acid.

摘要翻译： 已经转化为银或汞形式的大孔，强酸聚硅氧烷离子交换树脂用于从非水有机介质中除去碘化物。 在特别优选的方法中，从乙酸中除去己基碘。