Patent application number | Description | Published |
20120215025 | Oxidation Of Hydrocarbons - In a process for oxidizing a hydrocarbon, the hydrocarbon is contacted with oxygen in the presence of an N-substituted cyclic imide and under conditions to oxidize the hydrocarbon to produce an oxidized hydrocarbon product and at least one decomposition product of the N-substituted cyclic imide. At least a portion of the at least one decomposition product is contacted with hydroxylamine or a salt thereof under conditions to convert the at least one decomposition product back to said imide. | 08-23-2012 |
20120323045 | Dehydrogenation of Cyclohexanone to Produce Phenol - In a process for the dehydrogenation of cyclohexanone to produce phenol, a feed comprising cyclohexanone is contacted with a dehydrogenation catalyst under dehydrogenation conditions comprising a temperature of less than 400° C. and a pressure of less than 690 kPa, gauge, such 0.1 to 50 wt % of the cyclohexanone in said feed is converted to phenol and the dehydrogenation product contains less than 100 ppm by weight of alkylbenzenes. | 12-20-2012 |
20130202522 | "HYDROALKYLATION PROCESSES" - The invention relates to hydroalkylation processes. In the processes, a hydrogen stream comprising hydrogen and an impurity is treated to reduce the amount of the impurity in the hydrogen stream. The hydrogen is then hydroalkylated with benzene to form at least some cyclohexylbenzene. The processes also relate to treating a benzene stream comprising benzene and an impurity with an adsorbent to reduce the amount of the impurity in the benzene stream. The hydroalkylation processes described herein may be used as part of a process to make phenol. | 08-08-2013 |
20130211157 | Cyclohexylbenzene Compositions - In a process for producing phenol and cyclohexanone, a feed comprising cyclohexylbenzene is oxidized to produce an oxidation reaction product comprising cyclohexyl-1-phenyl-1-hydroperoxide. At least a portion of the oxidation reaction product is then cleaved to produce a cleavage reaction product comprising phenol, cyclohexanone, and at least one contaminant At least a portion of the cleavage reaction product is contacted with an acidic material to convert at least a portion of the at least one contaminant to a converted contaminant and thereby produce a modified reaction product. The composition comprising cyclohexylbenzene may have at least 10 wt % of cyclohexylbenzene; 1 wppm to 1 wt % of bicyclohexane; 1 wppm to 1 wt % of biphenyl; and 1 wppm to 2 wt % of methylcyclopentylbenzene, wherein the wt % s and wppms are based upon total weight of the composition. | 08-15-2013 |
20130217921 | "PROCESSES FOR PRODUCING PHENOL" - In a process for producing phenol and cyclohexanone, a feed comprising cyclohexylbenzene is oxidized to produce an oxidation reaction product comprising cyclohexyl-1-phenyl-1-hydroperoxide. At least a portion of the oxidation reaction product is then cleaved to produce a cleavage reaction product comprising phenol, cyclohexanone, and at least one contaminant. At least a portion of the cleavage reaction product is contacted with an acidic material to convert at least a portion of the at least one contaminant to a converted contaminant and thereby produce a modified reaction product. | 08-22-2013 |
20130217922 | Processes for Producing Phenol - Disclosed herein is a process for producing phenol. The process includes oxidizing at least a portion of a feed comprising cyclohexylbenzene to produce an oxidation composition comprising cyclohexyl-1-phenyl-1-hydroperoxide. The oxidation composition may then be cleaved in the presence of an acid catalyst to produce a cleavage reaction mixture comprising the acid catalyst, phenol and cyclohexanone. At least a portion of the cleavage reaction mixture may be neutralized with a basic material to form a treated cleavage reaction mixture. In various embodiments, the treated cleavage reaction mixture contains no greater than 50 wppm of the acid catalyst or no greater than 50 wppm of the basic material. | 08-22-2013 |
20130225871 | Phenol Compositions - Described herein are compositions having (a) at least 99 wt % phenol; and (b) 0.1 wppm to 1000 wppm of at least one of the following components: bicyclohexane, cyclohexylbenzene, methylcyclopentylbenzene, hydroxycyclohexanone, cyclohexenone, cyclohexanol, cyclohexanone, cyclohexanedione, benzoic acid, hexanal, and methycyclopentanone, wherein the wt % and wppm are based upon the total weight of the composition. | 08-29-2013 |
20130277605 | Cyclohexylbenzene Compositions - In a process for producing phenol and cyclohexanone, a feed comprising cyclohexylbenzene is oxidized to produce an oxidation reaction product comprising cyclohexyl-1-phenyl-1-hydroperoxide. At least a portion of the oxidation reaction product is then cleaved to produce a cleavage reaction product comprising phenol, cyclohexanone, and at least one contaminant. At least a portion of the cleavage reaction product is contacted with an acidic material to convert at least a portion of the at least one contaminant to a converted contaminant and thereby produce a modified reaction product. The oxidation reaction product may have at least 50 wt % of cyclohexylbenzene, no greater than 80 wt % of cyclo-hexyl-1-phenyl-1-hydroperoxide, and 0.1 wt % to 10 wt % of another hydroperoxide. | 10-24-2013 |
20130296614 | Dehydrogenation Processes and Phenol Compositions - Described herein is a process for producing phenol in which (a) benzene and hydrogen are contacted with a hydroalkylation catalyst under hydroalkylation conditions to produce cyclohexylbenzene; (b) the cyclohexylbenzene is contacted with an oxidation catalyst under oxidation conditions to produce cyclohexylbenzene hydroperoxide; (c) the cyclohexylbenzene hydroperoxide is contacted with a cleavage catalyst under cleavage conditions to produce a cleavage effluent comprising phenol and cyclohexanone; (d) the cyclohexanone is contacted with a dehydrogenation catalyst under dehydrogenation conditions to produce a dehydrogenation effluent having at least a portion of the cyclohexanone and a first contaminant; and (e) the first contaminant is contacted with an acidic material under contaminant treatment conditions to convert at least a portion of the first contaminant into a converted first contaminant. Phenol compositions made from the above-described process are also described herein. | 11-07-2013 |
20140336417 | Oxidation of Cyclohexylbenzene - In a process for oxidizing cyclohexylbenzene, a composition comprising cyclohexylbenzene is contacted with oxygen in at least one oxidation zone under oxidation conditions sufficient to produce at least some (i) cyclohexylbenzene hydroperoxide; (ii) a first byproduct; and (iii) a second byproduct in an effluent. A ratio β is determined according to the following formula: | 11-13-2014 |
20140371489 | Process for Producing Phenol - In a process for producing phenol, a feed comprising cyclohexylbenzene hydroperoxide is contacted with a cleavage catalyst comprising a fluorinated acidic resin under cleavage conditions effective to convert at least a portion of the cyclohexylbenzene hydroperoxide into phenol and cyclohexanone. | 12-18-2014 |
20150038747 | Process for Producing Phenol - In a process for producing phenol, cyclohexylbenzene is oxidized to form a first reaction product comprising cyclohexylbenzene hydroperoxide and at least a portion of the cyclohexylbenzene hydroperoxide is then cleaved to form a second reaction product comprising phenol and cyclohexanone. At least one of the first and second reaction products comprises cyclohexenone, which is hydrogenated to produce further cyclohexanone. | 02-05-2015 |
20150065753 | Process for Producing Phenol and Cyclohexanone - In a process for separating a mixture comprising cyclohexanone and phenol, at least a portion of the mixture is distilled in the presence of a solvent including at least two alcoholic hydroxyl groups attached to non-adjacent saturated carbon atoms and at least one hemiketal defined by the formula (I) or the formula (II): | 03-05-2015 |