Dedini S/a Industrias De Base

Phb Industrial S.a.

Nazareno Antonio Sertori Durao

Paulo Eduardo Mantelatto

Alvaro Minto Duzzi

Tetuhiko Sato

Roberto Vianna Nonato

Carlo Rocchiccioli

Sonia Maria Kesserlingh

Celina Kiyomi Yamakawa

Antonio Rogério Perira César

José Luiz Olivério

Fernando Cesar Boscariol

Marcilio Nogueria Do Amaral Gurgel

Nazareno Antônio Sertóri Durão

A process for recovering polyhydroxyalkanoates (PHAs) from cellular biomass of bacteria, said biomass being obtained by fermentation and in the form of a cellular biomass slurry in aqueous suspension, comprising the steps of: submitting the slurry to operations of injection of PHA solvent, agitation and heating, in order to form a suspension comprising PHA solvent with the dissolved PHA, water and insoluble residues; recuperating the solvent enriched with PHA; rapidly cooling the solution of PHA solvent to precipitate the dissolved PHA; micro-filtrating the suspension of PHA precipitated in the solvent, in order to separate a paste concentrated with precipitated PHA; washing with water, heating and agitating the concentrated PHA paste, to promote evaporation of the solvent and to obtain a suspension containing PHA granules; agitating and shearing the PHA granules and depleting the residual solvent; and separating the purified PHA particles from the suspension.

Process for recovering polyhydroxialkanoates ('PHAs') from cellular biomass

A process is proposed for recovery of water in the sugar cane processing in production mills of sugar and alcohol or only alcohol (ethanol). In the process, the thermal energy available in the exhausted steam from the electric energy generation turbines is transferred to the different mixed juice processing phases, with the reuse of the exhausted steam condensates in the boilers and of the other condensates, after using thermal energy, for imbibition, in the juice extraction phase, for cooling in the process, after passing through cooling towers, for other industrial uses and for possible treatment or use in the irrigation out of the productive system in the mill.

Process for the recovery of water and energy from the processing of sugar cane in sugar and ethanol production mills

A process is proposed for crystallizing, by progressively cooling, in multiple stages arranged in series in a crystallization vessel (), a descending continuous flow of a saturated sucrose solution at a temperature from about 78&#xb0; to about 120&#xb0; C., each stage maintaining the sucrose solution being crystallized at a predetermined temperature, until reaching a temperature from about 25 to 40&#xb0; C., obtaining substantially pure sucrose crystals. A suspension containing sugar seeds is introduced in the crystallizing equipment, in the first stage, jointly with the saturated sucrose solution of 1.05-1.15. In another embodiment of the invention, the saturated solution is fed and its temperature is controlled, already in the first stage of the vessel (), to obtain a supersaturation between 1.05 and 1.15, inducing the formation of small crystals used as crystallization seeds.

Process and equipment for sugar crystallization by controlled cooling

A process for extracting and recovering polyhydroxyalkanoates (PHAs) from cellular biomass comprising the steps of: extracting the polyhydroxyalkanoate with at least one non-halogenated solvent which is non-aggressive to the environment; heating the cellular biomass, in order to form a suspension comprising PHA solvent with the dissolved PHA and insoluble residues; recovering the solvent enriched with PHA; injecting the PHA-enriched solvent in a vapor flow in order to rapidly promote the complete precipitation of PHA in water, while processing the solvent evaporation; depleting the residual solvent; separating the purified PHA particles from the suspension and drying them.

Process for extracting and recovering polyhydroxyalkanoates (PHAs) from cellular biomass

Growing community of inventors

Piracicaba, Brazil

Paulo Eduardo Mantelatto