Abstract: Disclosed is a process for removing the Lewis acid catalyst, polymerization solvent and byproducts, such as ketals, from a polyetherketone comprising(A) introducing into an extraction zone a Lewis acid polymerization catalyst, a polymerization solvent and a polyetherketone,(B) passing an alcohol through the extraction zone to remove a majority of the Lewis acid catalyst and the polymerization solvent,(C) passing water through the extraction zone to remove a majority of the alcohol,(D) contacting the polyetherketone with an aqueous acid solution,(E) passing water through the extraction zone to remove a majority of the acid,(F) passing steam through the extraction zone, and(G) subjecting the polyetherketone to a reduced pressure.

Abstract: Disclosed is a process for preparation of a stream which is both selectively high in 2,6-diiodonaphthalene and also contains substantial quantities of diiodonaphthalene. First, naphthalene is oxyiodinated in the presence of a zeolite catalyst to produce a stream which is selectively high in 2-monoiodonaphthalene and the 2-monoiodonaphthalene is separated from the stream to produce a stream which is both selectively high in 2-monoiodonaphthalene and contains substantial quantities of 2-monoiodonaphthalene. Second, this stream is then oxyiodinated in the presence of a zeolite catalyst to produce a stream which is selectively high in 2,6-diiodonaphthalene and then 2,6-diiodonaphthalene is separated from the stream to produce the stream which is both selectively high in 2,6-diiodonaphthalene and contains substantial quantities of 2,6-diiodonaphthalene.

Abstract: Disclosed is a process comprising preparing a product stream rich in naphthalene and 2-monoiodonaphthalene comprising contacting hydrogen and a feed stream containing iodonaphthalenes selected from the group consisting of monoiodonaphthalene, diiodonaphthalene and triiodonaphthalene and mixtures thereof with an X or Y type zeolite containing an ion selected from the group consisting of sodium, potassium and rubidium and a metal selected from the group selected from the group consisting of palladium, platinum, rhodium and ruthenium.

Abstract: Disclosed is a process for the recovery of the iodine and alkyl value of an alkyl iodide by a process comprising (I) carbonylating an alkyl iodide by a process presence of a carbonylation catalyst, carbon monoxide and a hydrogen donor to obtain a mixture of hydrogen iodide and an acyl compound and (II) oxidizing the hydrogen iodide of step (I) to elemental iodine.

Abstract: In a process for the production of methyl acetate from methanol and glacial acetic acid involving countercurrently flowing acetic acid and methanol through a single reactive distillation column having an extractive distillation section and a methyl acetate/acetic acid rectification section to obtain methyl acetate in the presence of an acidic catalyst, the improvement which comprises producing ultra high purity methyl acetate by the additional step of introducing acetic anhydride and a salt-free acid catalyst into the reactive distillation column between the extractive distillation section and the methyl acetate/acetic acid rectification section.

Abstract: Disclosed is a process for the co-production of an aromatic carboxylic esters and alkyl iodide by the carbonylation of an aromatic iodide in the absence of a Bronsted base and in the presence of an ether and a nickel catalyst.

Abstract: A process comprising preparation of an alkanol and elemental iodine by contacting an iodoalkane containing 1 to 20 carbons, water and molecular oxygen at a temperature in the range of about 50.degree. to about 200.degree. C. and recovering the elemental iodine.

Abstract: A process for the co-production of aromatic carboxylic esters and alkyl iodides by the carbonylation of aromatic iodides in the presence of an ether and an iridium catalyst.

Abstract: Disclosed is a process for the co-production of aromatic carboxylic esters and alkyl iodides by the carbonylation of aromatic iodides in the presence of an ether and a palladium catalyst.

Abstract: Disclosed is a process for the co-production of aromatic carboxylic esters and alkyl iodides by the carbonylation of aromatic iodides in the presence of an ether and a ruthunium catalyst.

Abstract: Disclosed is a process for the co-production of aromatic carboxylic esters and alkyl iodides by the carbonylation of aromatic iodides in the presence of an ether and a rhodium catalyst.

Abstract: The present invention provides a process for the production of high purity methyl acetate from methanol and glacial acetic acid wherein the acetic acid functions both as a reactant and as an extractive agent. The process comprises countercurrently flowing approximately stoichiometric quantities of acetic acid and methanol through a single reactive distillation column in the presence of an acidic catalyst which is preferably sulfuric acid. The column provides intimate contact between the acetic acid and the methanol and between the acetic acid and the azeotropes (methyl acetate/water and methyl acetate/methanol) which are formed in the column. At preferred catalyst concentrations, the residence time in the column is at least about two hours. The process further comprises continuously removing high purity methyl acetate from the top of the column and continuously removing water from the bottom of the column.