Disclosed is a catalyst based on synthetic silica, in a heterogeneous catalysis method, to promote the effective conversion of residual glycerin, resulting from the production of biodiesel, into formic acid with high selectivity and stability, in a continuous flow reaction. The conversion of residual glycerin occurs by homogeneous catalysis, by the action of components remaining from the synthesis of biodiesel, with the formation of major compounds, such as formic acid, cyclic ethers and diglycerol, in continuous flow and reflow reactions. The reaction can also be carried out by adding sodium salts in the homogeneous catalytic conversion process of commercial glycerin. The process values the residual glycerin, without the need for purification before its transformation into products with high added value, but of renewable origin, adding more interest and potential.

Disclosed is a catalyst based on synthetic silica, in a heterogeneous catalysis method, to promote the effective conversion of residual glycerin, resulting from the production of biodiesel, into formic acid with high selectivity and stability, in a continuous flow reaction. The conversion of residual glycerin occurs by homogeneous catalysis, by the action of components remaining from the synthesis of biodiesel, with the formation of major compounds, such as formic acid, cyclic ethers and diglycerol, in continuous flow and reflow reactions. The reaction can also be carried out by adding sodium salts in the homogeneous catalytic conversion process of commercial glycerin. The process values the residual glycerin, without the need for purification before its transformation into products with high added value, but of renewable origin, adding more interest and potential.

A method and a system for producing glycolic acid and/or glycolate from sustainable resources. A method for catalytic production of glycolic acid and/or glycolate including the step of: oxidation of a starting material including between 0.1-100 wt/wt % glycolaldehyde at a temperature of between 10 C. and 100 C. with an oxidant in the presence of a metal-based catalyst including a catalytically active metal, which is selected from the group of palladium and platinum; or mixtures thereof.

A method and a system for producing glycolic acid and/or glycolate from sustainable resources. A method for catalytic production of glycolic acid and/or glycolate including the step of: oxidation of a starting material including between 0.1-100 wt/wt % glycolaldehyde at a temperature of between 10 C. and 100 C. with an oxidant in the presence of a metal-based catalyst including a catalytically active metal, which is selected from the group of palladium and platinum; or mixtures thereof.

Various embodiments include a method for preparing propanol, propionaldehyde, and/or propionic acid comprising: electrolyzing CO2 to give CO and C2H4; and reacting the CO and C2H4 with H2 to produce propanol and/or propionaldehyde, and/or reacting the CO and C2H4 with H2O to produce propionic acid.

Various embodiments include a method for preparing propanol, propionaldehyde, and/or propionic acid comprising: electrolyzing CO2 to give CO and C2H4; and reacting the CO and C2H4 with H2 to produce propanol and/or propionaldehyde, and/or reacting the CO and C2H4 with H2O to produce propionic acid.

The invention relates to terpene-derived acids and esters thereof as well as to processes for synthesizing them.

The invention relates to terpene-derived acids and esters thereof as well as to processes for synthesizing them.

The invention relates to terpene-derived acids and esters thereof as well as to processes for synthesizing them.

A preparative method for carboxylic acids is disclosed in the present invention. The method is characterized in that: compounds (II) are reacted in the presence of hydrogen peroxide and base to produce target products (I), as represented by the following reaction scheme: wherein R.sup.1 is aryl, pyridyl, pyrimidyl, pyridazinyl, pyrazinyl, benzothienyl, benzofuranyl, quinolinyl, isoquinolinyl, thiadiazolyl, C.sub.1-6 alkyl, C.sub.3-6 cycloalkyl, C.sub.2-6 alkenyl, C.sub.2-6 alkynyl and hydrogen; R.sup.2 is alkoxycarbonyl, alkylaminocarbonyl, aminocarbonyl, alkylthiolcarbonyl, cyano, sulfonyl, sulfinyl, carbonyl, aldehyde, carboxyl, nitro, alkyl and hydrogen; R.sup.3 is alkoxycarbonyl, alkyl amido carbonyl, aminocarbonyl, cyano, sulfonyl, sulfinyl, carbonyl, carboxyl and nitro. The present invention has the following main benefits: cheap and readily available starting materials, safe processes, high yield, good quality, which facilitates industrial production.