phenol by cumene process
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phenol by cumene process

The Cumene Process for Phenol—Acetone Production

Selective aerobic oxidation of cumene to cumene hydroperoxide (CHP) is an important industrially relevant process since it is one of the intermediates for the production of phenol [67, 68]. On the...

Explain the preparation of phenol from cumene.

Answer. Preparation of phenol from cumene →. To prepare phenol, cumene is first oxidised in the presence of air to cumene hydroperoxide. (Isoprophyl benzene)Cumene. . O2. . Cumene hydroperoxide. Now, cumene hydroperoxide is treated with dilute acid to

How is phenol manufactured by Cumene process?

Cumene is isopropyl benzene. Cumene in presence of sodium carbonate is oxidised by passing air or oxygen. The catalyst is cobalt naphthenate. Temperature is 423 K. The product cumene hydroperoxide is heated with dilute sulphuric acid. It decomposes to phenol and

The cumene process for phenol-acetone production ...

01/07/2007  The cumene process for phenol-acetone production. Devoted to the memory of the inventors of this chemical process, Russian scientists R.Yu. Udris, M.S. Nemtsov, and B.D. Kruzhalov.

The cumene process for phenol-acetone production - PDF ...

The cumene process for phenol–acetone (PA) manufacture is one of the unique high-volume petrochemical processes in which simultaneously two products (phenol and acetone) are obtained from one reactant (cumene), each of the products finding useful application; however, which is most important, their reaction with one another in the joint synthesis results in bisphenol, a chemical that forms the

The Cumene Process for Phenol—Acetone Production

Selective aerobic oxidation of cumene to cumene hydroperoxide (CHP) is an important industrially relevant process since it is one of the intermediates for the production of phenol [67, 68]. On the...

Production of phenol from cumene - ScienceDirect

CONTINUOUS PROCEDURE FOR THE PREPARATION OF PHENOL FROM CUMENE In order to be able to study the overall process an apparatus was developed for the continuous preparation of phenol and acetone from cumene on a small scale. The procedure was based on the results of the experiments discussed in the foregoing chapters. Experimental The apparatus consisted of three sections 1. an oxidation section 189 2. a film reactor for the decomposition of cumene

The cumene process for phenol-acetone production ...

The cumene process for phenol-acetone production. Devoted to the memory of the inventors of this chemical process, Russian scientists R.Yu. Udris, M.S. Nemtsov, and B.D. Kruzhalov.

How is phenol manufactured by Cumene process?

Cumene is isopropyl benzene. Cumene in presence of sodium carbonate is oxidised by passing air or oxygen. The catalyst is cobalt naphthenate. Temperature is 423 K. The product cumene hydroperoxide is heated with dilute sulphuric acid. It decomposes to phenol and by product acetone. Acetone is

(PDF) Production of phenol from cumene - Systematic and ...

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 ...

Phenol, Acetone, Cumene - NexantECA

The commercial cumene to phenol process involves two primary chemical steps, namely oxidation of cumene to cumene hydroperoxide (CHP) and acid catalyzed CHP cleavage to phenol and acetone.

(PDF) Industrial catalytic processes-phenol production ...

The major processing steps include: (1) liquid-phase phenol, AMS, and residue, (6) recovery of phenol and the oxidation of cumene to cumene hydroperoxide [CHP], (2) effluent wastewater via an extraction process to prepare it for concentration of CHP, (3) acid-catalyzed decomposition of further downstream treatment required to meet effluent concentrated CHP to phenol and acetone, (4) neutralization quality

Phenol Production and Manufacturing Process ICIS

06/11/2007  Shell Chemical has developed a phenol process which coproduces both acetone and methyl ethyl ketone (MEK). According to consultants Nexant ChemSystems, it involves the co-oxidation of cumene and sec-butylbenzene, which is made via alkylation of benzene with n-butenes. The process has the potential to change the acetone/MEK ratio within reasonable limits to meet varying market

PRODUCTION OF PHENOL - Academic Writers Bureau

This process of phenol production involves purified or recycled cumene being oxidized. Cumene is fed in a stream into the oxidation vessel which is maintained at 110-115 oC and pH range of 6.0 to 8.0. This mixture is maintained exposed to compressed air until at least 20-25% of the cumene is converted to cumene hydroperoxide . This crude mixture is concentrated to 80% then injected to a ...

Phenol and Acetone CEFIC Petrochemicals Europe Phenol and ...

Production Process Phenol and co-product Acetone are produced via a two-step process starting from cumene (Hock ambient or enriched air to form cumene hydroperoxide. This step is an autocatalytic

Production of phenol from cumene - ScienceDirect

CONTINUOUS PROCEDURE FOR THE PREPARATION OF PHENOL FROM CUMENE In order to be able to study the overall process an apparatus was developed for the continuous preparation of phenol and acetone from cumene on a small scale. The procedure was based on the results of the experiments discussed in the foregoing chapters. Experimental The apparatus consisted of three sections 1. an

(PDF) Production of phenol from cumene - Systematic and ...

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...

The Cumene Process for Phenol—Acetone Production ...

The Cumene Process for Phenol—Acetone Production. V. M. Zakoshansky Petroleum Chemistry volume 47, page 307 (2007)Cite this article. 1012 Accesses. 1 Citations. Metrics details. Abstract. This article is withdrawn for legal reasons and will not appear in the printed version of the journal. However, since the electronic version of this issue has been published already, it was not possible to ...

PRODUCTION OF PHENOL - Academic Writers Bureau

This process of phenol production involves purified or recycled cumene being oxidized. Cumene is fed in a stream into the oxidation vessel which is maintained at 110-115 oC and pH range of 6.0 to 8.0. This mixture is maintained exposed to compressed air until at least 20-25% of the cumene is converted to cumene hydroperoxide . This crude mixture is concentrated to 80% then injected to a ...

Phenol Production Process Design - Tiffany Robinson

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]: C6H5CHCH32+O2→C6H5CCH32OOH C6H5CHCH32+ 1 2 O2→CH32C6H3CH2OH Cleavage reactions to produce phenol and acetone/AMS by-products[1]: C H32 C6 3 2OH→ 6 4 2 3 3+ 2O

Process for the production of phenol and acetone from

As result, one obtains in the process: valued products phenol acetone .varies.-methylstyrene kg/h 25564.5 15812.2 1825 by-products on the outlet from the device "phenolic tar" for the cleavage of cumene hydroperoxide 25.4 in kg/t phenol steam consumption in the case in the case in the case of the in t/t phenol of the of the separation of distillation cleavage acetone and the AMS- 0.94 0.08 ...

Phenol and Acetone CEFIC Petrochemicals Europe Phenol and ...

Production Process Phenol and co-product Acetone are produced via a two-step process starting from cumene (Hock ambient or enriched air to form cumene hydroperoxide. This step is an autocatalytic

Material Balances Design Problem Cumene Production Background

Cumene Production Background Cumene (isopropyl benzene) is produced by reacting propylene and benzene over an acid catalyst. Cumene may be used to increase the octane in gasoline, but its primary use is as a feedstock for manufacturing phenol and acetone. The plant where you are employed has been buying cumene to produce phenol. Management is

Design Report for Cumene Production

09/12/2015  economic feasibility of developing a new cumene production process an existing plant site for the synthesis and purification of cumene with an output goal of 100,000 metric tons per year for a plant life of 15 years. Cumene in the global petrochemical industry is used primarily as a reactant for production of phenol. Benzene and propylene, the two reactants used to create cumene, are

Synthesis of Phenols - CliffsNotes

You can prepare phenols in large quantities by the pyrolysis of the sodium salt of benzene sulfonic acid, by the Dow process, and by the air oxidation of cumene. Each of these processes is described below. You can also prepare small amounts of phenol by the peroxide oxidation of phenylboronic acid and the hydrolysis of diazonium salts.

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