C07C227/42

PROCESS TO PREPARE A CO GRANULE OF METHYLGLYCINE N,N DIACETIC ACID SALTS EMPLOYING A CRUMBLY PHASE COMPOSITION OF METHYLGLYCINE N,N DIACETIC ACID SALTS

The present disclosure relates to a process to prepare a crystalline co granule of MGDA-Nax, x being 2,5-3, containing a step of drying a crumbly phase composition containing on total weight of the composition (i) 70-87 wt % of organic compounds and salts thereof containing 85 to 100 wt % on total organic compounds and salts thereof of MGDA-Nax, wherein at least 60 wt % of the MGDA-Nax is crystalline, and (ii) 13-30 wt % of water in the presence of a second composition containing at least one second component selected from the group of scale inhibitors, crystal inhibitors, film or spot preventing polymers, glass-corrosion inhibiting agents, pH modifiers, chelating agents, builders, bleaching agents, and surfactants. It also relates to the co granules obtainable by the process.

PROCESS TO PREPARE A CO GRANULE OF METHYLGLYCINE N,N DIACETIC ACID SALTS EMPLOYING A CRUMBLY PHASE COMPOSITION OF METHYLGLYCINE N,N DIACETIC ACID SALTS

The present disclosure relates to a process to prepare a crystalline co granule of MGDA-Nax, x being 2,5-3, containing a step of drying a crumbly phase composition containing on total weight of the composition (i) 70-87 wt % of organic compounds and salts thereof containing 85 to 100 wt % on total organic compounds and salts thereof of MGDA-Nax, wherein at least 60 wt % of the MGDA-Nax is crystalline, and (ii) 13-30 wt % of water in the presence of a second composition containing at least one second component selected from the group of scale inhibitors, crystal inhibitors, film or spot preventing polymers, glass-corrosion inhibiting agents, pH modifiers, chelating agents, builders, bleaching agents, and surfactants. It also relates to the co granules obtainable by the process.

SPECIFICALLY-SHAPED CRYSTAL OF COMPOUND AND METHOD FOR PRODUCING SAME

The present invention provides a method for obtaining a specifically-shaped crystal (specifically, spherocrystal) of a compound with good reproducibility. This method for producing a specifically-shaped crystal (specifically spherocrystal) of a compound comprises: (1) a step for preparing a supersaturated solution of a compound having a degree of supersaturation equal to or higher than a critical degree of supersaturation; and (2) a step for precipitating a specifically-shaped crystal (specifically spherocrystal) of a compound from the supersaturated solution.

SPECIFICALLY-SHAPED CRYSTAL OF COMPOUND AND METHOD FOR PRODUCING SAME

The present invention provides a method for obtaining a specifically-shaped crystal (specifically, spherocrystal) of a compound with good reproducibility. This method for producing a specifically-shaped crystal (specifically spherocrystal) of a compound comprises: (1) a step for preparing a supersaturated solution of a compound having a degree of supersaturation equal to or higher than a critical degree of supersaturation; and (2) a step for precipitating a specifically-shaped crystal (specifically spherocrystal) of a compound from the supersaturated solution.

CRYSTAL OF AMINO ACID SALT OF 3-HYDROXYISOVALERIC ACID AND PRODUCTION METHOD THEREOF

An object of the present invention is to provide a crystal of an amino acid salt of HMB which is easy to handle and has high solubility, and to provide a method for producing the same. According to the present invention, the crystal of an amino acid salt of HMB can be precipitated by dissolving an amorphous amino acid salt of HMB in a solvent containing alcohol and stirring or allowing the solvent to left stand. In addition, the crystal of an amino acid salt of HMB can be precipitated by concentrating an aqueous HMB solution of an amino acid salt which has a pH of 2.5 to 11.0.

CRYSTAL OF AMINO ACID SALT OF 3-HYDROXYISOVALERIC ACID AND PRODUCTION METHOD THEREOF

An object of the present invention is to provide a crystal of an amino acid salt of HMB which is easy to handle and has high solubility, and to provide a method for producing the same. According to the present invention, the crystal of an amino acid salt of HMB can be precipitated by dissolving an amorphous amino acid salt of HMB in a solvent containing alcohol and stirring or allowing the solvent to left stand. In addition, the crystal of an amino acid salt of HMB can be precipitated by concentrating an aqueous HMB solution of an amino acid salt which has a pH of 2.5 to 11.0.

Crystal of amino acid salt of 3-hydroxyisovaleric acid and production method thereof

An object of the present invention is to provide a crystal of an amino acid salt of HMB which is easy to handle and has high solubility, and to provide a method for producing the same. According to the present invention, the crystal of an amino acid salt of HMB can be precipitated by dissolving an amorphous amino acid salt of HMB in a solvent containing alcohol and stirring or allowing the solvent to left stand. In addition, the crystal of an amino acid salt of HMB can be precipitated by concentrating an aqueous HMB solution of an amino acid salt which has a pH of 2.5 to 11.0.

Crystal of amino acid salt of 3-hydroxyisovaleric acid and production method thereof

An object of the present invention is to provide a crystal of an amino acid salt of HMB which is easy to handle and has high solubility, and to provide a method for producing the same. According to the present invention, the crystal of an amino acid salt of HMB can be precipitated by dissolving an amorphous amino acid salt of HMB in a solvent containing alcohol and stirring or allowing the solvent to left stand. In addition, the crystal of an amino acid salt of HMB can be precipitated by concentrating an aqueous HMB solution of an amino acid salt which has a pH of 2.5 to 11.0.

Processes of making L-ornithine phenylacetate

Embodiments of the present disclosure are related to improved processes for making L-ornithine phenylacetate without using any silver salts or forming any L-ornithine intermediate salts, such as a benzoate salt. The present processes may be used in the commercial scale manufacturing of L-ornithine phenylacetate with high yields and low impurities.

Processes of making L-ornithine phenylacetate

Embodiments of the present disclosure are related to improved processes for making L-ornithine phenylacetate without using any silver salts or forming any L-ornithine intermediate salts, such as a benzoate salt. The present processes may be used in the commercial scale manufacturing of L-ornithine phenylacetate with high yields and low impurities.