maleic anhydride production process

Process for the production of maleic anhydride

8/8/1989The maleic anhydride yield decay was 1 82% of the initial maleic anhydride yield giving an average maleic anhydride yield decay of 0 23% per month Thus it is apparent that there has been provided in accordance with the instant invention a process that fully satisfies the objects and advantages set forth hereinabove

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Synthesis of Tetrahydrofuran

process Once maleic anhydride is produced from n-butane tetrahydrofuran (THF) is then produced from the maleic anhydride The feed from Distillation Tower 103 goes into a reactor feed prep The mixture is then sent to Reactor 201 Within Reactor 201 Reactions 7-10 occur There is a conversion of maleic anhydride with a 98% selectivity

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1 4

1 4-Butanediol from Maleic Anhydride via Dimethyl Maleate PEP Review 94-1-1 Davy Process Technology (DPT) has recently brought two 1 4-butanediol (BDO) plants on stream These plants use vapor-phase hydrogenation of diethyl maleate (DEM) starting from maleic anhydride (MA) The first plant was the Shinwa Petrochemical plant located in Ulsan

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Styrene maleic anhydride

Styrene maleic anhydride (SMA or SMAnh) is a synthetic polymer that is built-up of styrene and maleic anhydride monomers The monomers can be almost perfectly alternating making it an alternating copolymer [citation needed] but (random) copolymerisation with less than 50% maleic anhydride content is also possible The polymer is formed by a radical polymerization using an organic peroxide

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Maleic acid

Maleic acid is converted into maleic anhydride by dehydration to malic acid by hydration and to succinic acid by hydrogenation It reacts with thionyl chloride or phosphorus pentachloride to give the maleic acid chloride (it is not possible to isolate the mono acid chloride) Maleic acid is a reactant in many Diels-Alder reactions

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Maleic anhydride

Through conversion to fumaric and malic acids maleic anhydride is a vital component of gelling agents flavor enhancers and food preservatives It is also essential to the production of elastane (Spandex) fibers artificial sweeteners paper-sizing water treatments hardeners for epoxy curing hairsprays pharmaceuticals agricultural

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1 4

1 4-Butanediol from Maleic Anhydride via Dimethyl Maleate PEP Review 94-1-1 Davy Process Technology (DPT) has recently brought two 1 4-butanediol (BDO) plants on stream These plants use vapor-phase hydrogenation of diethyl maleate (DEM) starting from maleic anhydride (MA) The first plant was the Shinwa Petrochemical plant located in Ulsan

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Process for the production of 1:4 butanediol from maleic

Abstract A process has been developed for the production of 1:4 butanediol (1:4 BDO from maleic anhydride (MA) The three process steps are:- a) Esterifiction of MA to produce a dialkyl maleate ester based on a modification of commercially proven esterification technology b) Hydrogenation of the ester at moderate temperatures and pressures to 1:4 BD using novel low pressure ester

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Module 6 Detailed design: Evaluation of maleic anhydride

Detailed design: Evaluation of maleic Example application maleic anhydride production – Participants will:! learn to apply a hierarchical approach to evaluate and improve the design of chemical processes! use process diagnostic summary tables to identify pollution prevention opportunities

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Phthalic Anhydride (PA) Production and Manufacturing

Phthalic Anhydride (PA) Production and Manufacturing Process 2010/04/27 Phthalic anhydride was first produced by the oxidation of naphthalene in concentrated sulphuric acid in the presence of mercury sulphate This route was later replaced by the catalytic vapour phase oxidation of naphthalene in air in the presence of a vanadium oxide

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MALEIC ANHYDRIDE

A 0 1% solution of pyridine (or other tertiary amine) in maleic anhydride at 185C gives an exothermic decomposition with rapid evolution of gas [Chem Eng News 42(8) 41 1964] Maleic anhydride is known as an excellent dienophile in the Diels-Alder reaction to produce phthalate ester derivatives

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Phthalic Anhydride Catalysts

Phthalic Anhydride Catalysts BASF provides phthalic anhydride (PA) catalysts for the production of phthalic anhydride from the oxidation of o-xylene and naphthalene/mixed feed BASF has been producing PA for over 140 years and researching PA catalysts for more than 120 years

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Phthalic Anhydride Catalysts

Phthalic Anhydride Catalysts BASF provides phthalic anhydride (PA) catalysts for the production of phthalic anhydride from the oxidation of o-xylene and naphthalene/mixed feed BASF has been producing PA for over 140 years and researching PA catalysts for more than 120 years

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Maleic anhydride

Through conversion to fumaric and malic acids maleic anhydride is a vital component of gelling agents flavor enhancers and food preservatives It is also essential to the production of elastane (Spandex) fibers artificial sweeteners paper-sizing water treatments hardeners for epoxy curing hairsprays pharmaceuticals agricultural

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Process for the production of 1:4 butanediol from maleic

Abstract A process has been developed for the production of 1:4 butanediol (1:4 BDO from maleic anhydride (MA) The three process steps are:- a) Esterifiction of MA to produce a dialkyl maleate ester based on a modification of commercially proven esterification technology b) Hydrogenation of the ester at moderate temperatures and pressures to 1:4 BD using novel low pressure ester

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Maleic Anhydride (MAN)

Two main types of feedstock have been used for commercial maleic anhydride production: benzene and n-butane Irrespective of raw material the oxidation technology and the separation technology of a maleic anhydride plant resembles the fundamental process scheme shown in the figure below Basic Maleic Anhydride Plant Configuration Oxidation

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Maleic Anhydride

Maleic anhydride is a colorless to white solid that forms orthorhombic crystals and decomposes in water (2) Maleic anhydride has an acrid odor with an odor threshold of 0 32 parts per million (ppm) (5 8) The vapor pressure for maleic anhydride is 0 1 to 0 2 mm Hg at 25 C (2) Conversion Factors:

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Maleic Anhydride Production Cost Analysis 2020

Maleic Anhydride Production Cost Analysis 2020 Maleic anhydride is a colourless compound which appears as a crystalline needle flake pellet rod briquette lump or a fused mass A versatile compound maleic anhydride is an organic chemical classified as the acid anhydride of maleic

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Maleic Anhydride Market Applications Price Trends

Maleic Anhydride Market size may have steady growth over forecasted timeframe owing to positive application outlook in copolymers adhesives and unsaturated polyester resin (UPR) Maleic anhydride is manufactured from butane or benzene by oxidation process Benzene is available at higher cost than butane which makes butane favourable raw material

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ES2226901T3

A process for the production of maleic anhydride from n-butane which comprises reacting a mixture of a gas containing molecular oxygen and 0 5-3% by volume of n-butane in a first reactor under conditions effective for the formation of maleic anhydride washing the reaction gas mixture from the first reactor to recover the potential of separable maleic anhydride from the components of the

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Maleic Anhydride Production Cost Reports

This study presents an economic analysis of Maleic Anhydride production from n-butane in the USA Similarly to the process presented in the report "MAN E11A" the process examined in this report also uses a fixed-bed reactor but in this case the recovery system is aqueous-based

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Progress in Maleic Anhydride Production

Abstract Maleic anhydride (furan-2 5-dione) is a key component to an incredibly diverse group of chemistries and commercial applications The ability of maleic anhydride to achieve such great diversity is a direct result of the maleic anhydride's industrial complex capacity to develop economical production routes in the face of ever-increasing governmental scrutiny fierce pricing pressures

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Maleic Anhydride Market Applications Price Trends

Maleic Anhydride Market size may have steady growth over forecasted timeframe owing to positive application outlook in copolymers adhesives and unsaturated polyester resin (UPR) Maleic anhydride is manufactured from butane or benzene by oxidation process Benzene is available at higher cost than butane which makes butane favourable raw material

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Global Maleic Anhydride Market

The global maleic anhydride market size was valued at USD 2 77 billion in 2018 and is projected to expand at a CAGR of 6 7% from 2019 to 2025 Increasing demand for Unsaturated Polyester Resins (UPR) and 1 4-Butanediol (BDO) are expected to augment market growth over the forecast period

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Maleic Anhydride

Huntsmann fixed bed maleic anhydride process Kirk Othmer Encyclopaedia of Chemical Technology by Timothy R Felthouse Joseph C Burnett Ben Horrell Micheal J Mummey and YeongYeong-Jen Kuo Fermentation of sugars to produce citric acid Shreves Chemical Process Industries 5th Edition by George T Austin page 598 Oxidation of ethylene to

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US6310219B1

Disclosed is a process for the production of maleic anhydride which comprises: reacting a hydrocarbon with an oxygen-containing gas in the presence of a catalyst recovering maleic anhydride from the reaction gas recovering unreacted hydrocarbon from the remaining gas and returning the hydrocarbon thus recovered to the reactor for re-use wherein said reaction is effected under the

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India Maleic Anhydride Market: Plant Capacity

4/20/2020The primary objective of the study was to evaluate and forecast Maleic Anhydride capacity production demand inventory and demand - supply gap in India To categorize Maleic Anhydride demand based on end use sales channel and region To study trade dynamics and company share in India Maleic Anhydride market

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Maleic Anhydride

Huntsmann fixed bed maleic anhydride process Kirk Othmer Encyclopaedia of Chemical Technology by Timothy R Felthouse Joseph C Burnett Ben Horrell Micheal J Mummey and YeongYeong-Jen Kuo Fermentation of sugars to produce citric acid Shreves Chemical Process Industries 5th Edition by George T Austin page 598 Oxidation of ethylene to

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Maleic acid

Maleic acid is converted into maleic anhydride by dehydration to malic acid by hydration and to succinic acid by hydrogenation It reacts with thionyl chloride or phosphorus pentachloride to give the maleic acid chloride (it is not possible to isolate the mono acid chloride) Maleic acid is a reactant in many Diels-Alder reactions

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