A solubilizer is used to stabilize crude polyol produced from biomass.

A solubilizer is used to stabilize crude polyol produced from biomass.

A process for producing and recovering acetic acid in an acetic acid production system is disclosed, the process comprising contacting methanol and carbon monoxide in the presence of a liquid reaction medium comprising iodide under carbonylation conditions sufficient to form acetic acid. The liquid reaction medium comprises a carbonylation catalyst, water, and an additive comprising a bidentate phosphine dioxide, a tertiary arsine oxide, or a combination thereof. An aspect of the process includes a method for reducing water in an acetic acid production process.

A process for producing and recovering acetic acid in an acetic acid production system is disclosed, the process comprising contacting methanol and carbon monoxide in the presence of a liquid reaction medium comprising iodide under carbonylation conditions sufficient to form acetic acid. The liquid reaction medium comprises a carbonylation catalyst, water, and an additive comprising a bidentate phosphine dioxide, a tertiary arsine oxide, or a combination thereof. An aspect of the process includes a method for reducing water in an acetic acid production process.

The present invention relates to a method for producing a hydride having a carbon number of 4, comprising contacting, in liquid phase, an unsaturated compound having a carbon number of 4 as a raw material with a solid catalyst obtained by loading a metal element belonging to Groups 9 to 11 of the long periodic table on a support, thereby performing hydrogenation to produce a corresponding hydride having a carbon number of 4, wherein hydrogenation is performed in the presence of, as a solvent, a 1,4-butanediol having a nitrogen component concentration of 1 ppm by weight to 1 wt % in terms of nitrogen atom.

The present invention relates to a method for producing a hydride having a carbon number of 4, comprising contacting, in liquid phase, an unsaturated compound having a carbon number of 4 as a raw material with a solid catalyst obtained by loading a metal element belonging to Groups 9 to 11 of the long periodic table on a support, thereby performing hydrogenation to produce a corresponding hydride having a carbon number of 4, wherein hydrogenation is performed in the presence of, as a solvent, a 1,4-butanediol having a nitrogen component concentration of 1 ppm by weight to 1 wt % in terms of nitrogen atom.

Method for preparing 1,4-butanediol having an APHA color index of less than 30 by treating substance mixtures comprising 1,4-butanediol by distillation of the 1,4-butanediol in the presence of complex hydrides.

Method for preparing 1,4-butanediol having an APHA color index of less than 30 by treating substance mixtures comprising 1,4-butanediol by distillation of the 1,4-butanediol in the presence of complex hydrides.

An energy integrated process is disclosed for the conversion of carbon dioxide to a liquid product. The conversion reaction is exothermic. The heat of reaction and the heat of condensation of the reaction product or products are used as energy input in a carbon dioxide enrichment step. The enrichment step produces a feed gas for the conversion reaction.

An energy integrated process is disclosed for the conversion of carbon dioxide to a liquid product. The conversion reaction is exothermic. The heat of reaction and the heat of condensation of the reaction product or products are used as energy input in a carbon dioxide enrichment step. The enrichment step produces a feed gas for the conversion reaction.