This invention relates to a method for preparing 1,4-cyclohexane dicarboxylic acid (CHDA). More specifically, this invention relates to a method for preparing 1,4-cyclohexane dicarboxylic acid having a high rate of trans isomers, without an isomerization reaction step.

This invention relates to a method for preparing 1,4-cyclohexane dicarboxylic acid (CHDA). More specifically, this invention relates to a method for preparing 1,4-cyclohexane dicarboxylic acid having a high rate of trans isomers, without an isomerization reaction step.

This invention relates to a method for preparing 1,4-cyclohexane dicarboxylic acid (CHDA). More specifically, this invention relates to a method for preparing 1,4-cyclohexane dicarboxylic acid having a high rate of trans isomers, without an isomerization reaction step.

A formulation for solidifying used cooking oil or grease and methods of making and using the same is disclosed. The formulation comprises hydrogenated castor oil, sometimes having a flake morphology. In some embodiments, the formulation has a melting point of between 70 and 80° C. and a density between 0.7 and 1.0 g/L. In some embodiments, the formulation is created by heating castor oil in the presence of a catalyst until at least some of the ricinoleic acid content in the castor oil is reduced to form hydrogenated castor oil in a reaction mixture. The method of using the formulation comprises the steps of mixing the formulation and used cooking oil or grease at an elevated temperature until the formulation completely dissolves into the used cooking oil to form a formulation mixture, and waiting until the formulation mixture cools and solidifies prior to disposal.

A formulation for solidifying used cooking oil or grease and methods of making and using the same is disclosed. The formulation comprises hydrogenated castor oil, sometimes having a flake morphology. In some embodiments, the formulation has a melting point of between 70 and 80° C. and a density between 0.7 and 1.0 g/L. In some embodiments, the formulation is created by heating castor oil in the presence of a catalyst until at least some of the ricinoleic acid content in the castor oil is reduced to form hydrogenated castor oil in a reaction mixture. The method of using the formulation comprises the steps of mixing the formulation and used cooking oil or grease at an elevated temperature until the formulation completely dissolves into the used cooking oil to form a formulation mixture, and waiting until the formulation mixture cools and solidifies prior to disposal.

Methods for syntheses of organic acids from α-keto acids, including methods for syntheses of isotopically enriched organic acids from α-keto acids are disclosed. The isotopically enriched organic acids are useful, for example, in metabolic flux analyses.

Methods for syntheses of organic acids from α-keto acids, including methods for syntheses of isotopically enriched organic acids from α-keto acids are disclosed. The isotopically enriched organic acids are useful, for example, in metabolic flux analyses.

Methods for syntheses of organic acids from α-keto acids, including methods for syntheses of isotopically enriched organic acids from α-keto acids are disclosed. The isotopically enriched organic acids are useful, for example, in metabolic flux analyses.

This invention relates to a method for preparing 1,4-cyclohexanedimethanol (CHDM), more specifically to a method for preparing 1,4-cyclohexanedimethanol having a high rate of trans isomers without an isomerization reaction step, wherein two-step hydrogenation reactions and a purification step are conducted using terephthalic acid as starting material.

This invention relates to a method for preparing 1,4-cyclohexanedimethanol (CHDM), more specifically to a method for preparing 1,4-cyclohexanedimethanol having a high rate of trans isomers without an isomerization reaction step, wherein two-step hydrogenation reactions and a purification step are conducted using terephthalic acid as starting material.