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1. 发明授权

US5502259A Method for purification of phenol 失效
标题翻译：苯酚纯化方法
公开(公告)号：US5502259A
公开(公告)日：1996-03-26
申请号：US290258
申请日：1994-08-15
申请人： Vladimir M. Zakoshansky , Irina I. Vasilieva , Andrei K. Griaznov
发明人： Vladimir M. Zakoshansky , Irina I. Vasilieva , Andrei K. Griaznov
IPC分类号： B01J29/06 , B01J29/08 , B01J29/18 , B01J29/20 , B01J29/65 , B01J35/10 , C07B61/00 , C07C37/08 , C07C37/70 , C07C37/74 , C07C37/82 , C07C39/04 , C07C45/53 , C07C45/79 , C07C37/68
CPC分类号： C07C45/79 , C07C37/82 , C07C45/53 , Y02P20/52 , Y02P20/584
摘要： The invention relates to a method for purification of phenol and specifically to a method for purification of phenol produced within the process of joint phenol and acetone production by cumene method.The aim of the invention is to develop a catalyst which has high activity for phenol purification from organic mico-impurities with regeneration of the catalyst and which has high mechanical strength and stability with long catalyst life.This result is obtained by phenol purification using a heterogeneous zeolite catalyst. The acidity of the catalyst measured by butane cracking (K.sub.A) is more than 10.It is preferable to use zeolites which are designated according to the classification of the International Zeolite Association by indices FAU (zeolites X, Y), MFI (for example, ZSM-5), MOR (mordenite), MAZ (omega), BEA (beta), FER (ferrierite) and others. These zeolites can be used with binders (aluminum oxide, silica gel, aluminosilicates or aluminophosphates) and without them. It is preferable to use zeolite of the Y type with an aluminosilicate binder and a the value of K.sub.A =50-80 cm.sup.3 /min*g and Si/Al ratio more than 3. The concentration of sodium, potassium and other alkali agents on the basis of their oxides does not exceed 2 wt %, preferably not more than 0.3 wt %. It is preferable to use zeolites with medium and large pores. Size of zeolites pores should be within the range 4 .ANG. in diameter and more. The most preferable zeolites are with large pores (>6 .ANG. in diameter) such as Y and mordenite.
摘要翻译：本发明涉及一种纯化苯酚的方法，特别涉及通过异丙苯法在联苯酚和丙酮生产过程中产生的苯酚纯化方法。本发明的目的是开发一种催化剂，该催化剂具有较高的活性，用于有机微杂杂质的纯化，催化剂的再生，并具有较高的机械强度和稳定性以及较长的催化剂寿命。该结果通过使用非均相沸石催化剂的苯酚纯化获得。通过丁烷裂解（KA）测量的催化剂的酸度大于10.优选使用根据国际沸石协会的分类指定的沸石，通过指数FAU（沸石X，Y），MFI（例如， ZSM-5），MOR（丝光沸石），MAZ（ω），BEA（β），FER（镁碱沸石）等。这些沸石可以与粘合剂（氧化铝，硅胶，硅铝酸盐或铝磷酸盐）一起使用，没有它们。优选使用Y型沸石与铝硅酸盐粘合剂，KA = 50-80cm 3 / min * g，Si / Al比大于3。钠，钾和其他碱剂的浓度其氧化物的基数不超过2重量％，优选不大于0.3重量％。优选使用具有中孔和大孔的沸石。沸石孔隙的大小应在直径4 ANGSTROM以内。最优选的沸石具有大孔（直径大于等于6埃），例如Y和丝光沸石。

2. 发明授权

US5908962A Cumene oxidation process 失效
标题翻译：枯烯氧化过程
公开(公告)号：US5908962A
公开(公告)日：1999-06-01
申请号：US20395
申请日：1998-02-09
申请人： Vladimir Mikhailovich Zakoshansky , Andrei Konstantinovich Griaznov , Irina I. Vasilieva , John W. Fulmer , William D. Kight
发明人： Vladimir Mikhailovich Zakoshansky , Andrei Konstantinovich Griaznov , Irina I. Vasilieva , John W. Fulmer , William D. Kight
IPC分类号： C07C407/00 , C07C409/10
CPC分类号： C07C409/10 , C07C407/00
摘要： Greater efficiency in a water-alkaline emulsion cumene oxidation process using a cascade of reactors is obtained by splitting the reactor cascade into 2 stages with the first stage utilizing NH.sub.4 NaCO.sub.3 as the active carbonate in the stage containing less than 18% by weight cumene hydroperoxide and using Na.sub.2 CO.sub.3 as the active carbonate in the stage containing more than 18% by weight cumene hydroperoxide. By directly injecting ammonia into a recycle stream organic acids are efficiently neutralized. A counter current water wash of the second stage also increases process efficiency by scrubbing out unwanted impurities. Control of pH in the process improves efficiency and reduces impurity levels.
摘要翻译：在使用级联反应器的水 - 碱性乳液异丙苯氧化过程中，通过将反应器级联分为两个阶段获得更高的效率，其中第一阶段利用NH 4 NaCO 3作为活性碳酸酯在含有少于18重量％氢过氧化枯烯的阶段中使用在含有超过18重量％氢过氧化枯烯的阶段中，作为活性碳酸钠的Na 2 CO 3。通过将氨直接注入循环流中，有机酸被有效地中和。第二阶段的逆流水洗还通过洗去不需要的杂质来提高工艺效率。该过程中pH值的控制可提高效率并降低杂质浓度。

3. 发明授权

US5767322A Cumene oxidation process 失效
公开(公告)号：US5767322A
公开(公告)日：1998-06-16
申请号：US670304
申请日：1996-06-27
申请人： Vladimir Mikhailovich Zakoshansky , Andrei Konstantinovich Griaznov , Irina I. Vasilieva , John W. Fulmer , William D. Kight
发明人： Vladimir Mikhailovich Zakoshansky , Andrei Konstantinovich Griaznov , Irina I. Vasilieva , John W. Fulmer , William D. Kight
IPC分类号： C07C407/00 , C07C409/10
CPC分类号： C07C409/10 , C07C407/00
摘要： Greater efficiency in a water-alkaline emulsion cumene oxidation process using a cascade of reactors is obtained by splitting the reactor cascade into 2 stages with the first stage utilizing NH.sub.4 NaCO.sub.3 as the active carbonate in the stage containing less than 18% by weight cumene hydroperoxide and using Na.sub.2 CO.sub.3 as the active carbonate in the stage containing more than 18% by weight cumene hydroperoxide. By directly injecting ammonia into a recycle stream organic acids are efficiently neutralized. A counter current water wash of the second stage also increases process efficiency by scrubbing out unwanted impurities. Control of pH in the process improves efficiency and reduces impurity levels.

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