摘要:
A process for the preparation of methanol by contacting CO and H.sub.2 with a novel catalytic system formed by combining (a) a nickel salt of a carboxylic acid having a pK.sub.a >4.76, (b) an alcohol, and (c) a hydride of an alkali metal or of an alkaline earth metal.
摘要:
A process for the production of methanol comprising contacting a gaseous mixture of carbon monoxide and hydrogen with a catalytic system, obtainable by combination of:component (a): a substantially dry nickel formate,component (b): water in a predetermined amount in relation to the nickel formate amount and,component (c): an alcoholate derived from an alkali metal or from an alkaline earth metal, and activation the combined components,and a catalyst system to be used in this process.Preferably the molar ratio between nickel formate and water is in the rate from 1:3.5 to 1:1 and more preferably from 1:3.0 to 1:1.5.
摘要:
A process for the preparation of methanol by contacting CO and H.sub.2 with a novel catalytic system formed by combining (a) a nickel salt of a carboxylic acid having a pK.sub.a >4.76, (b) an alcohol, and (c) a hydride of an alkaki metal or of an alkaline earth metal.
摘要:
A process for the production of methanol comprising contacting a gaseous mixture of carbon monoxide and hydrogen with a catalytic system, obtainable by combination of:component (a): a salt containing a cation of an element of Group VIII of the Periodic Table of the Elements,component (b): an alcohol, andcomponent (c): an alcoholate derived from an alkali metal or from an alkaline earth metal,and activation the combined components, and a catalyst system to be used in this process.
摘要:
A process for the preparation of methanol by contacting CO and H.sub.2 with a novel catalytic system formed by combining (a) a nickel salt having a pK.sub.a
摘要:
A process for producing methanol which comprises the following consecutive steps:Step 1: Preparing a novel catalytic system by combining (a) a nickel (b) a hydride of an alkali metal or of an alkaline earth metal, and (c) an ester of formic acid which originates from an external source, and allowing the combined components (a), (b) and (c) to react; andStep 2: Contacting a gaseous mixture of CO and H.sub.2 with the catalytic system prepared in step 1.
摘要:
A process for the production of methanol comprising contacting a gaseous mixture of carbon monoxide and hydrogen with a catalytic system, obtainable by combination of:component (a): a substantially dry nickel formate,component (b): water in a predetermined amount in relation to the nickel formate amount and,component (c): an alcoholate derived from an alkali metal or from an alkaline earth metal, and activation the combined components,and a catalyst system to be used in this process.Preferably the molar ratio between nickel formate and water is in the range from 1:3.5 to 1:1 and more preferably from 1:3.0 to 1:1.5.
摘要:
A process for producing methanol which comprises the following consecutive steps:Step 1: Preparing a novel catalytic system by combining (a) a nickel (b) a hydride of an alkali metal or of an alkaline earth metal, and (c) an ester of formic acid which originates from an external source, and allowing the combined components (a), (b) and (c) to react; andStep 2: Contacting a gaseous mixture of CO and H.sub.2 with the catalytic system prepared in step 1.
摘要:
A process for the preparation of methanol by contacting CO and H.sub.2 with a novel catalytic system formed by combining (a) a nickel salt having a pK.sub.a
摘要:
The invention relates to a process for the preparation of alkenoic acid derivatives by reaction of an aliphatic conjugated diene with carbon monoxide and a hydroxyl group-containing compound. The reaction is carried out in a liquid reaction medium of controlled polarity in the presence of a catalyst system containing a palladium compound, a multidentate phosphine ligand, and optionally a protonic acid. By controlling the polarity of the reaction medium to a calculated dielectric constant .epsilon..sub.calc of below a value of 8, higher reaction rates are achieved.