Abstract: Preparation of derivatives of ?-hydroxycarboxylic acid, including ?-hydroxycarboxylic acid esters, ?,?-unsaturated carboxylic acids, esters of ?,?-unsaturated carboxylic acid, and alkoxy derivatives.

Abstract: Preparation of derivatives of ?-hydroxycarboxylic acid, including ?-hydroxycarboxylic acid esters, ?,?-unsaturated carboxylic acid, esters of ?,?-unsaturated carboxylic acid, and alkoxy derivatives, such as preparation of acrylic acid from 3-hydroxypropionic acid.

Abstract: Preparation of derivatives of ?-hydroxycarboxylic acid, including ?-hydroxycarboxylic acid esters, ?,?-unsaturated carboxylic acid, esters of ?,?-unsaturated carboxylic acid, and alkoxy derivatives.

Abstract: Disclosed is a method of making hydrogenated metathesis products comprising the steps of: (a) providing a metathesis composition; (b) providing a metathesis catalyst comprising a transition metal; (c) metathesizing at least a portion of the metathesis composition in the presence of the metathesis catalyst to form a first composition comprising one or more metathesis products and a transition metal; (d) hydrogenating at least a portion of the first composition in the presence of a hydrogenation catalyst to form a second composition comprising one or more hydrogenated metathesis products, transition metal, and hydrogenation catalyst; and (e) removing at least a portion of the hydrogenation catalyst from the second composition, wherein the removal of the hydrogenation catalyst removes at least a portion of the transition metal of the metathesis catalyst from the second composition.

Abstract: Preparation of derivatives of ?-hydroxycarboxylic acid, including ?-hydroxycarboxylic acid esters, ?,?-unsaturated carboxylic acid, esters of ?,?-unsaturated carboxylic acid, and alkoxy derivatives.

Abstract: Disclosed is a method of making hydrogenated metathesis products comprising the steps of: (a) providing a metathesis composition; (b) providing a metathesis catalyst comprising a transition metal; (c) metathesizing at least a portion of the metathesis composition in the presence of the metathesis catalyst to form a first composition comprising one or more metathesis products and a transition metal; (d) hydrogenating at least a portion of the first composition in the presence of a hydrogenation catalyst to form a second composition comprising one or more hydrogenated metathesis products, transition metal, and hydrogenation catalyst; and (e) removing at least a portion of the hydrogenation catalyst from the second composition, wherein the removal of the hydrogenation catalyst removes at least a portion of the transition metal of the metathesis catalyst from the second composition.

Abstract: A recycling process for the demetalization of hydrocarbon oil comprises recycling the following steps: a demetalizing composition for hydrocarbon oil or an aqueous solution thereof is sufficiently mixed with hydrocarbon oil in a desired proportion, and the resultant mixture is subjected to a conventional electrically desalting process to obtain a demetalized hydrocarbon oil and an aqueous desalted solution containing the desalted metal salts; the aqueous desalted solution containing the metal salts is then sufficiently mixed with a precipitating agent in a desired proportion and is subjected to a displacement reaction, and an aqueous solution containing the demetalizing composition is recovered by separating out the residue of the metal salts produced in the displacement reaction, which is poorly soluble or insoluble in water, with a solid-liquid separator; and the recovered aqueous solution containing the demetalizing composition for hydrocarbon oil, which meets the requirements for metal ions in demetalized

Abstract: A recycling process for the demetalization of hydrocarbon oil comprises recycling the following steps: a demetalizing composition for hydrocarbon oil or an aqueous solution thereof is sufficiently mixed with hydrocarbon oil in a desired proportion, and the resultant mixture is subjected to a conventional electrically desalting process to obtain a demetalized hydrocarbon oil and an aqueous desalted solution containing the desalted metal salts; the aqueous desalted solution containing the metal salts is then sufficiently mixed with a precipitating agent in a desired proportion and is subjected to a displacement reaction, and an aqueous solution containing the demetalizing composition is recovered by separating out the residue of the metal salts produced in the displacement reaction, which is poorly soluble or insoluble in water, with a solid-liquid separator; and the recovered aqueous solution containing the demetalizing composition for hydrocarbon oil, which meets the requirements for metal ions in demetalized

Abstract: Phosphate rock is reacted with phosphoric acid to produce monobasic calcium phosphate. Monobasic calcium phosphate is reacted with ammonium carbonate to produce ammonium phosphate. Dibasic calcium phosphate is also produced as a by-product when monobasic calcium phosphate reacting with ammonium carbonate. The dibasic calcium phosphate is reacted with sulfuric acid to produce phosphoric acid. The phosphoric acid is used to react with phosphate rock. Ammonium sulfate or ammonium hydroxide may be used instead of ammonium carbonate. Phosphate other than ammonium phosphate can be produced if calcium phosphate is reacted with x-y to produce x-phosphate, where x is lithium, sodium, ammonium or potassium and y is carbonate, bicarbonate hydroxide or sulfate.

Abstract: Disclosed is a process for separating and recovering 3-hydroxypropionic acid from an aqueous solution comprising 3-hydroxypropionic acid and acrylic acid, comprising counter current extracting the aqueous solution with ethyl acetate extractant. Further disclosed is a process for separating and recovering 3-hydroxypropionic acid and acrylic acid from an aqueous solution comprising 3-hydroxypropionic acid and acrylic acid.

Abstract: A process is disclosed for conversion of ammonium salts of ?-hydroxy carbonyl compounds forming useful conversion products including, e.g., ?, ?-unsaturated carbonyl compounds and/or ammonium salts of ?, ?-unsaturated carbonyl compounds recovered at a high molar yield. Conversion products find use, e.g., as feedstock and/or end-use chemicals.

Abstract: A process and apparatus are disclosed for conversion of ?-hydroxy carbonyl compounds forming useful conversion products including, e.g., acrylic acid [CAS No. 79-10-7], acrylates, and acrylamide [CAS No. 79-06-01]. Conversion products find use, e.g., as feedstock and/or end-use chemicals.

Abstract: A recycling process for the demetalization of hydrocarbon oil comprises recycling the following steps: a demetalizing composition for hydrocarbon oil or an aqueous solution thereof is sufficiently mixed with hydrocarbon oil in a desired proportion, and the resultant mixture is subjected to a conventional electrically desalting process to obtain a demetalized hydrocarbon oil and an aqueous desalted solution containing the desalted metal salts; the aqueous desalted solution containing the metal salts is then sufficiently mixed with a precipitating agent in a desired proportion and is subjected to a displacement reaction, and an aqueous solution containing the demetalizing composition is recovered by separating out the residue of the metal salts produced in the displacement reaction, which is poorly soluble or insoluble in water, with a solid-liquid separator; and the recovered aqueous solution containing the demetalizing composition for hydrocarbon oil, which meets the requirements for metal ions in demetalized

Abstract: Processes for preparing carboxylic acids and derivatives thereof in which an ammonium salt of the carboxylic acid is heated in the presence of an organic reagent to split the salt and form the acid or, where the organic reagent is an esterifying agent, the corresponding ester. Both the acid and the ester may be dehydrated to form unsaturated counterparts.

Abstract: Disclosed is a process for separating and recovering 3-hydroxypropionic acid from an aqueous solution comprising 3-hydroxypropionic acid and acrylic acid, comprising counter current extracting the aqueous solution with ethyl acetate extractant. Further disclosed is a process for separating and recovering 3-hydroxypropionic acid and acrylic acid from an aqueous solution comprising 3-hydroxypropionic acid and acrylic acid.

Abstract: Disclosed is a process for hydrating an alpha, beta-unsaturated carboxylic acid, such as acrylic acid, in water, in the presence of a catalyst selected from carbon dioxide, a sulfur oxide, a nitrogen oxide, gaseous hydrochloric acid, an inorganic or organic base having a pKa greater than 7, to prepare a 3-hydroxycarboxylic acid such as 3-hydroxypropionic acid. Also disclosed is a process for recovering 3-hydroxypropionic acid from a solution comprising the 3-hydroxypropionic acid.

Abstract: The techniques for processing lactic acid/lactate salt mixtures are provided. Preferred mixtures for processing are obtained from fermentation broths, preferably from fermentation processes conducted at a pH of 4.8 or lower. The techniques generally concern the provision of separated lactic acid and lactate streams, from the mixtures. Preferred techniques of separation and processing of each of the streams are provided.

Abstract: Disclosed is a process for hydrogenating 3-hydroxypropionic acid, or esters thereof, or mixtures of the acid and the ester, in a liquid phase, in the presence of a ruthenium catalyst, alone, or in combination with at least one or more additional metal catalyst wherein the metal is molybdenum, tungsten, titanium, zirconium, niobium, vanadium, chromium, or mixtures of the metals.

Abstract: Phosphate rock is reacted with phosphoric acid to produce monobasic calcium phosphate. Monobasic calcium phosphate is reacted with ammonium carbonate to produce ammonium phosphate. Dibasic calcium phosphate is also produced as a by-product when monobasic calcium phosphate reacting with ammonium carbonate. The dibasic calcium phosphate is reacted with sulfuric acid to produce phosphoric acid. The phosphoric acid is used to react with phosphate rock. Ammonium sulfate or ammonium hydroxide may be used instead of ammonium carbonate. Phosphate other than ammonium phosphate can be produced if calcium phosphate is reacted with a-y to produce x-phosphate, where x is lithium, sodium, ammonium or potassium and y is carbonate, hydroxide or sulfate.

Abstract: Disclosed is a process for separating and recovering 3-hydroxpropionic acid from an aqueous solution comprising 3-hydroxyproprionic acid and acrylic acid, comprising contacting the aqueous solution with an organic extractant, other than ethyl acetate. Also disclosed are processes for separating acrylic acid from aqueous solutions comprising acrylic acid and an organic extractant involving back extraction with water, or distillation in the presence of water. Further disclosed is a process for separating and recovering 3-hydroxyproprionic acid and acrylic acid from an aqueous solution comprising 3-hydroxyproprionic acid and acrylic acid.