Isopropylbenzene, or cumene, is traditionally a key component in global phenol production. With a 2011 market demand of 12.4 million tons (Stephan 2013), this makes cumene production nearly a 20 billion dollar per year industry. Nearly all of the cumene produced in the world uses

The cumene process for phenol-acetone production - PDF ... THE CUMENE PROCESS FOR PHENOL–ACETONE PRODUCTION 275 Selectivity, mol % (a) 96 with NH4OH 95 (b) 97 with NH4OH 96 95 94 without NH4OH without NH4OH 93 94 92 93 5 10 15 20 25 30 5 …

Ans: Air oxidation of Cumene leads to the production of Cumene hydroperoxide. When an alkaline solution of Cumene in sodium carbonate is oxidised, passing air in the presence of cobalt naphthalate as a catalyst, cumene hydroperoxide is formed. On treating cumene hydroperoxide with dilute acid, Phenol along with acetone is obtained. Q.6.

to produce phenol as a raw material at a cheaper cost than the current market price of $0.64/lb. The production rate of concern is 190,000 metric tons per year. Basic Flow Diagram and Process Background The phenol production process is based on the oxidation and cleavage of cumene. Major Hazards Oxidation of Cumene (Hock process)[1]:

The cumene process (cumene–phenol process, Hock process) is an industrial process for synthesizing phenol and acetone from benzene and propylene.The term stems from cumene (isopropyl benzene), the intermediate material during the process. It was invented by R. Ūdris and P. Sergeyev in 1942 (USSR)., and independently by Heinrich Hock in 1944 This process converts two relatively cheap ...

Equipment wise Material Balance Sheet; Phenol Production from Cumene; »More detailed. Process flow sheets: Cumene production process flow sheet. Oct 20, 2011 · Cumene production process flow sheet Propylene supplied needs to be separated from Butane and Butene in a debutanizer column to obtain a pure propylene.

Process for the production in continuous or semi-continuous of phenol/acetone from cumene, via cumene hy-droperoxide (CHP), which comprises: a. producing CHP in an air-lift reactor in which at least the upper and/or lower part of the downcomer has a flaring; b. cleaving the cumene hydroperoxide by means of acid treatment in a loop reactor comprising two heat exchangers connected in series and ...

Isopropylbenzene, or cumene, is traditionally a key component in global phenol production. With a 2011 market demand of 12.4 million tons (Stephan 2013), this makes cumene production nearly a 20 billion dollar per year industry. Nearly all of the cumene …

The cumene process for phenol-acetone production - PDF ... THE CUMENE PROCESS FOR PHENOL–ACETONE PRODUCTION 275 Selectivity, mol % (a) 96 with NH4OH 95 (b) 97 with NH4OH 96 95 94 without NH4OH without NH4OH 93 94 92 93 5 10 15 20 25 30 5 10 15 20 25 30 CHP, wt % Fig. 2.

WATSaxsrr : Production of phenol from cumene added dropwise from a dropping funnel, so that the liquid flowed down the wall in a thin layer. The outside of the tube wall was cooled by means of water, kept at 10 C. The reaction mixture was collected in a flask placed in ice under the tube. Fig. 7.

Figure 22.1 Flow sheet of Phenol production from Cumene Fresh cumene is mixed with hydrogenated unreacted cumene, cumene + alpha methyl styrene (recycle streams) . The pre-purification step involves converting unsaturates such as alpha methyl styrene and others to saturates.

What is claimed is: 1. An improved process for the production of phenol and acetone by oxidation of cumene to technical cumene hydroperoxide (CHP) with catalytic cleavage of the CHP, characterized in that the oxidation products are concentrated up to a cumene content in the technical cumene hydroperoxide of 21 to 30 wt. % and this mixture is subjected to the …

A production rate of 300,000 metric tons/year of phenol is considered. In the base case, 0.66 kg of phenol and 0.41 kg of acetone are produced per kg of cumene with an energy consumption of 23,181 ...

A production rate of 300,000 metric tons/year of phenol is considered. In the base case, 0.66 kg of phenol and 0.41 kg of acetone are produced per kg of cumene with an energy consumption of 23,181 kJ/kg phenol. The base case design annual profit is estimated to be 50 million USD with a …

A production rate of 300,000 metric tons/year of phenol is considered. In the base case, 0.66 kg of phenol and 0.41 kg of acetone are produced per kg of cumene with an energy consumption of 23,181 kJ/kg phenol. The base case design annual profit is estimated to be 50 million USD with a …

Cumene production process flow diagram. In this process, aluminum chloride has used a catalyst to for reacting benzene and propylene.