A novel process is provided which integrates the cracking of hydrocarbon containing feedstocks with the olefins purification and olefins derivative process utilizing dilute olefin feedstocks.

Integrated cracking and olefins derivative process utilizing dilute olefins

OF THE DISCLOSURE: A process for preparing dimethylcarbonate by reacting methanol with mixtures of carbon monoxide and oxygen which also contain hydrogen. The catalyst is constituted by a salt of a metal of groups IB, IIB or VIII of the periodic system, dissolved or dispersed in the reac-tion medium. It has been found that the hydrogen does not interfere in the reaction, so that a hydrogen-enriched gaseous mixture (synthesis gas) is withdrawn from the reactor. It is therefore particularly advantageous in that it produces dimethylcarbonate and at the same time provides hydrogen-enriched synthesis gas.

Process for producing dimethylcarbonate

A process for the preparation of a palladium catalyst for the oxacylation of olefins in the gaseous phase, which comprises impregnating a catalyst carrier with a solution of a palladium compound drying the catalyst at a temperature of below 90° C until a residual solvent content of less than 8% by weight is attained, and reducing the impregnated catalyst with a gas mixture of inert gas and reducing agent.

Process for the preparation of a palladium catalyst

A process for preparing dialkyl oxalates by reacting an aliphatic alcohol with carbon monoxide and oxygen under pressure. In the present process, (a) a catalyst consisting of a mixture of a salt of a platinum group metal and a salt of copper or iron and (b) an accelerator composed of one or more compounds selected from the group consisting of carbonates, hydrogen carbonates, nitrates, sulfates, hydroxides and carboxylates of an alkali metal and of an alkaline earth metal, pyridine, quinoline, glycine, alanine, urea, thiourea, formamide, acetamide, acetylacetone, ethyl acetoacetate, dimethylglyoxime, a tertiary amine, and a substituted or unsubstituted triphenyl phosphine are both used.

Process for preparing dialkyl oxalates

A method and catalyst system for producing aromatic carbonates from aromatic hydroxy compounds. In one embodiment, the method includes the step of contacting at least one aromatic hydroxy compound with oxygen and carbon monoxide in the presence of a carbonylation catalyst system having catalytic amounts of the following components: a Group VIII B metal source; a combination of inorganic co-catalysts including a copper source and at least one of a titanium source or a zirconium source; an onium chloride composition; and a base. Alternative embodiments include inorganic co-catalyst combinations of a lead source and at least one of a titanium source or a manganese source.

Method and catalyst system for producing aromatic carbonates

Oxalic acid (esters) are prepd by oxidn of CO in aq or alcoholic phase with O2 under press at elevated temp and using a catalyst system formed from a salt or a complex cpd of a Pt metal and a salt or a complex of a further metal which is more electropositive than the noble metal and which can occur in several oxidn states

Oxalic acid (ester) prepn - from carbon monoxide and oxygen

An improved method for the oxycarbonylation of olefins to form the corresponding Alpha , Beta -unsaturated carboxylic acids utilizing a catalyst system consisting essentially of A) at least one compound of aluminum, silicon, phosphorus, or gallium, or of an alkaline earth metal and B) at least one compound of iron or copper or of an element of side Groups IV B to VII B of the Periodic System having an atomic weight up to 184.

Method for the oxycarbonylation of olefins

A method for making a carbonic acid ester of the formula ##STR1## wherein R is --CH3, --C2 H5, or --C3 H7, which comprises reacting the corresponding alcohol, ROH, with carbon monoxide and oxygen, under pressure and at elevated temperature, in the presence of a copper-containing catalyst, said catalyst being a complex formed between copper-I-chloride and vanadium trichloride, chromium trichloride, iron trichloride, cobalt-II-chloride, aluminum trichloride, or silicon tetrachloride.

Method of making carbonic acid esters

A process for the catalytic oxycarbonylation of ethylene and propylene by reaction with carbon monoxide and oxygen in a methanolic or ethanolic reaction medium employing a catalyst which contains a compound of vanadium, chromium, iron, cobalt, nickel or copper and chloride, bromide, or iodide ions.

Method for the oxycarbonylation of ethylene and propylene

An improved method for making glycol monoesters and diesters of carboxylic acid by the reaction of an olefin and oxygen in the presence of a carboxylic acid and a catalyst, wherein said catalyst includes a compound of a metal of groups IVB - VIIB having an atomic number between 40 and 42 inclusive or between 72 and 75 inclusive, i.e. zirconium, niobium, molybdenum, hafnium, tantalum, tungsten, or rhenium.

Klaus Kabs

Papers

Oxalic acid (ester) prepn - from carbon monoxide and oxygen

Method for the oxycarbonylation of olefins

Method of making carbonic acid esters

Method for the oxycarbonylation of ethylene and propylene

Method for preparing glycol esters