of EP0099431 Process for production of maleic anhydride comprising contacting n-butane-rich feed consisting essentially of n-butane, molecular oxygen and ballast gas with oxidation catalyst in a heat transfer medium-cooled, tubular reaction zone in which catalyst is graded in terms of reactivity such...
Process for production of maleic anhydride comprising contacting n- butane-rich feed consisting essentially of n-butane, molecular oxygen and ballast gas with oxidation catalyst in a heat transfer medium-cooled, tubular reaction zone in which catalyst is graded in terms of reactivity such that reactiv...
A process for the catalytic production of maleic anhydride from n- butane with sustained high activity for the catalyst which comprises contacting the n-butane feed with oxygen gas and a catalyst comprising oxides of vanadium and phosphorus and maintaining between 0.5 and 50 mole percent propane in...
Maleic anhydride is prepared by contacting maleic acid, or a mixture of maleic and phthalic acids, at a temperature of from 200 DEG to 450 DEG C., in a reaction zone, with moving particles of a dehydration catalyst of particle size of 0.05 to 0.5 mm., condensing from the gases leaving ...
It has been found that phosphoric acid alone and in admixture with phenothiazine and/or methyl-p-benzoquinone reduces residue formed during the fractionation of aqueous crude maleic compositions for the production of maleic anhydride, and in particular, reduces residue due to the presence of small am...
Process for the production of maleic anhydride A process is described for the vapor phase oxidation of hydrocarbons having 4 carbon atoms to produce maleic anhydride comprising contacting the hydrocarbo... GT Click,BJ Barone 被引量: 6发表: 1986年 A process for the co production of maleic anhydr...
This paper gives a simply description of maleic anhydride production process, which employs n-butane as raw material and is realized by fluidized-bed oxida... Y Yang - 《Liaoning Chemical Industry》 被引量: 9发表: 1999年 Process for production of maleic anhydride Process for production of malei...
Process for production of maleic anhydride comprising contacting n-butane-rich feed consisting essentially of n-butane, molecular oxygen and ballast gas with oxidation catalyst in a heat transfer medium-cooled, tubular reaction zone in w... Palmer David Asael,Holzhauer Juergen Klaus 被引量: 11发表...
OF THE DISCLOSUREMALEIC ANHYDRIDE PRODUCTION WITH RECYCLE TREATMENTA process for producing maleic anhydride from a C4 hydrocarbon selected from n-butane and n-butene feed which comprises: (a) feeding the C4 hydrocarbon and air to a reactor; (b) contacting the C4 hydrocarbon and air in the react...
A process for preparing a vanadium, phosphorus, and oxygen catalyst precursor for preparing maleic anhydride by heterogeneously catalyzed gas-phase oxidati... J Weiguny,S Storck,M Duda,... 被引量: 0发表: 2002年 A process for the production of maleic anhydride Process for the production of ...