公开(公告)号：US4370205A

公开(公告)日：1983-01-25

申请号：US289592

申请日：1981-08-03

Applicant: Peter R. Pujado

Inventor： Peter R. Pujado

IPC: C07C15/44 ,  B01D3/14 ,  C07C1/00 ,  C07C7/04 ,  C07C15/02 ,  C07C15/085 ,  C07C27/00 ,  C07C37/08 ,  C07C37/74 ,  C07C39/02 ,  C07C39/04 ,  C07C67/00

CPC classification number: B01D3/143 ,  C07C7/04

Abstract: A process is disclosed for the recovery of a phenol-free cumene fraction from a mixture thereof with phenol and water. Said mixture is introduced into a first fractionation column at conditions to separate a bottom fraction comprising a major portion of said phenol and an overhead fraction comprising said cumene and water and a residual portion of said phenol. The overhead fraction is condensed to form an aqueous phase containing a minor portion of the residual phenol and a water-saturated organic phase comprising cumene and the balance of said residual phenol. The water-saturated organic phase is then further treated in a second fractionation column whereby cumene is recovered as an overhead fraction substantially free of phenol.

Abstract translation: 公开了一种从酚和水的混合物中回收无苯酚枯烯部分的方法。 将所述混合物引入第一分馏塔中，以分离包含所述苯酚的主要部分的塔底馏分和包含所述枯烯和水的塔顶馏分和所述苯酚的残余部分。 将塔顶馏分冷凝以形成含有少部分残余苯酚的水相和含有枯烯的水饱和有机相，余量为残余苯酚。 然后将水饱和的有机相在第二分馏塔中进一步处理，由此回收作为基本上不含苯酚的塔顶馏分的枯烯。

公开(公告)号：US4333801A

公开(公告)日：1982-06-08

申请号：US289591

申请日：1981-08-03

Applicant: Peter R. Pujado

Inventor： Peter R. Pujado

IPC: B01D3/14 ,  C07C1/00 ,  C07C7/04 ,  C07C15/085 ,  C07C15/44 ,  C07C27/00 ,  C07C37/74 ,  C07C39/04 ,  C07C67/00

CPC classification number: B01D3/14 ,  C07C7/04 ,  Y10S203/20

Abstract: A process is disclosed for the recovery of a cumene/alpha-methylstyrene fraction from a mixture thereof with phenol and water. Said mixture is introduced into a fractionation column at conditions to separate an overhead fraction comprising cumene and alpha-methylstyrene and a phenol bottoms fraction. A vapor stream comprising cumene, alpha-methylstyrene and a phenol-water azeotrope is withdrawn from an intermediate level of said column and condensed to form an organic phase and an aqueous phase comprising phenol. The latter is discharged, and the former is recycled to the column. The overhead fraction thus requires substantially less caustic to neutralize the residual phenol container therein.

Abstract translation: 公开了从苯酚和水的混合物中回收异丙苯/α-甲基苯乙烯部分的方法。 在分离包含枯烯和α-甲基苯乙烯和苯酚底部馏分的塔顶馏分的条件下，将所述混合物引入分馏塔。 将含有异丙基苯，α-甲基苯乙烯和苯酚 - 水共沸物的蒸气流从所述塔的中间水平中取出并冷凝以形成有机相和包含苯酚的水相。 后者被排出，前者被回收到塔中。 因此，塔顶馏分因此需要相当少的苛性碱来中和其中的残余酚类容器。

公开(公告)号：US4305886A

公开(公告)日：1981-12-15

申请号：US184727

申请日：1980-09-08

Applicant: Peter R. Pujado

Inventor： Peter R. Pujado

IPC: B01J8/00 ,  C07C253/26 ,  C07C120/14

CPC classification number: B01J8/0055 ,  C07C253/28

Abstract: A process for the ammoxidation of aromatic hydrocarbons in a fluidized bed reactor is disclosed. The upper level of a dense bed of fluidized catalyst is maintained near the inlet of the particle separator located at the top of the reactor. This reduces the temperature variation and the homogeneous reactions within the reactor and also increases the useful life of the catalyst.

Abstract translation: 公开了一种在流化床反应器中芳族烃的氨氧化方法。 在位于反应器顶部的颗粒分离器的入口附近保持流化催化剂的致密床的上层。 这降低了反应器内的温度变化和均相反应，并且还增加了催化剂的使用寿命。

公开(公告)号：US4284583A

公开(公告)日：1981-08-18

申请号：US171226

申请日：1980-07-22

Applicant: Peter R. Pujado

Inventor： Peter R. Pujado

IPC: C07C253/26 ,  C07C120/14 ,  B01J37/12 ,  F27B15/08

CPC classification number: C07C253/28 ,  Y02P20/584

Abstract: A process for the ammoxidation of alkylaromatic hydrocarbons in a fluidized bed reactor is disclosed. A relatively small stream of catalyst is removed from an unsegregated single catalyst bed within the reaction zone and passed into a regeneration zone operated at a higher temperature. Metals on the catalyst are oxidized by contact in the regeneration zone with a preheated oxygen containing gas stream, which is then passed into the reaction zone. The residual oxygen in this gas stream may supply 15 percent or more of the oxygen consumed in the reaction zone. The continuous regeneration maintains the metals on the catalyst in a high oxidation state.

Abstract translation: 公开了一种在流化床反应器中烷基芳烃的氨氧化方法。 在反应区内从未分离的单个催化剂床上除去相对较小的催化剂流，并进入在较高温度下操作的再生区。 催化剂上的金属通过在再生区中与预热的含氧气流接触而被氧化，然后将其通入反应区。 该气流中的残余氧气可以提供反应区中消耗的氧气的15％或更多。 连续再生使催化剂上的金属维持在高氧化态。