5 results about "Carbonylation" patented technology

In one embodiment, the invention is to a process for producing acrylic acid, comprising the step of providing from a distillation column in a carbonylation process a purified acetic acid stream comprising at least 0.15 wt % water. The process further comprises the step of condensation acetic acid of the purified acetic acid stream and an alkylenating agent in the presence of a catalyst and under conditions effective to form a crude acrylate product comprising acrylic acid and water. Acrylic acid is recovered from the crude acrylate product.

Process for the carbonylation of optionally substituted ethylenically unsaturated compounds by reaction with carbon monoxide and a coreactant in the presence of a catalyst system. The catalyst system includes (a) a source of Pt group metal cations, (b) a certain bidentate diphosphine composition.

The invention discloses a sulfonate-containing water-soluble iron carbonyl compound with a structural formula shown in the specification, and also discloses a preparation method thereof. The preparation method comprises the following steps: dissolving Fe3(CO)12 and sodium mercapto-propane sulfonate in an organic solvent, reacting at the temperature of lower than 120 DEG C until the reaction liquid becomes orange red, and separating and purifying to obtain the compound. The invention also discloses a method for slowly releasing CO by using the sulfonate-containing water-soluble iron carbonyl compound, which comprises the following specific operation steps: dissolving the compound in a normal saline solution of heavy water, and adding an anti-inflammatory drug solution or an amino acid solution. The compound has good water solubility and moderate stability, it is speculated that a degraded product of the compound has good bio-compatibility from the structure of the compound, no harm or small toxicity is caused to an organism, and the time for releasing carbon monoxide is controllable.