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1. (WO2010075616) PROCESS FOR PURIFYING LIGHT-COLOURED GLYCEROL FROM BIODIESEL TRANSESTERIFICATION
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/2010/075616 International Application No.: PCT/BR2009/000436
Publication Date: 08.07.2010 International Filing Date: 28.12.2009
IPC:
C07C 29/92 (2006.01) ,C07C 29/74 (2006.01) ,C07C 29/76 (2006.01) ,C07C 31/22 (2006.01)
C CHEMISTRY; METALLURGY
07
ORGANIC CHEMISTRY
C
ACYCLIC OR CARBOCYCLIC COMPOUNDS
29
Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring
74
Separation; Purification; Stabilisation; Use of additives
88
by treatment giving rise to a chemical modification of at least one compound
92
by a consecutive conversion and reconstruction
C CHEMISTRY; METALLURGY
07
ORGANIC CHEMISTRY
C
ACYCLIC OR CARBOCYCLIC COMPOUNDS
29
Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring
74
Separation; Purification; Stabilisation; Use of additives
C CHEMISTRY; METALLURGY
07
ORGANIC CHEMISTRY
C
ACYCLIC OR CARBOCYCLIC COMPOUNDS
29
Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring
74
Separation; Purification; Stabilisation; Use of additives
76
by physical treatment
C CHEMISTRY; METALLURGY
07
ORGANIC CHEMISTRY
C
ACYCLIC OR CARBOCYCLIC COMPOUNDS
31
Saturated compounds having hydroxy or O-metal groups bound to acyclic carbon atoms
18
Polyhydroxylic acyclic alcohols
22
Trihydroxylic alcohols, e.g. glycerol
Applicants:
SERVIÇO NACIONAL DE APRENDIZAGEM INDUSTRIAL-SENAI/DR-BA [BR/BR]; Rua Edístio Pondé, 342, Stiep Salvador-BA, CEP.:41770-395, BR (AllExceptUS)
DA CONCEIÇÃO RODRIGUES, Rogério [BR/BR]; BR (UsOnly)
DOS SANTOS MACHADO, Alexandre [BR/BR]; BR (UsOnly)
ACACIO FERRO, Alessander [BR/BR]; BR (UsOnly)
Inventors:
DA CONCEIÇÃO RODRIGUES, Rogério; BR
DOS SANTOS MACHADO, Alexandre; BR
ACACIO FERRO, Alessander; BR
Agent:
LEAL SALES FILHO, Gustavo; Diretor Regional SENAI-BA Rua Edístio Pondé, 342, Stiep Salvador-BA, CEP.:41770-395, BR
Priority Data:
PI0902550-205.01.2009BR
Title (EN) PROCESS FOR PURIFYING LIGHT-COLOURED GLYCEROL FROM BIODIESEL TRANSESTERIFICATION
(FR) PROCÉDÉ DE PURIFICATION DE GLYCÉRINE "BLONDE" ISSUE DE LA TRANSESTÉRIFICATION DU BIODIESEL
(PT) PROCESSO DE PURIFICAÇÃO DA GLICERINA LOURA, ORIUNDA DA TRANSESTERIFICAÇÃO DO BIODIESEL
Abstract:
(EN) The present invention describes a convenient method for purifying light-coloured glycerol from biodiesel production, without low-pressure distillation and without the need to neutralise the medium by means of chemicals classified as organic or inorganic bases. In the present purification process, acetals and cetals are produced by cyclisation of the respective triol in the presence of various aldehydes and ketones, and in the absence of additional acid catalysts. The cyclised addition products are hydrolysed in various concentrations of distilled water, yielding glycerol with a high degree of purity ranging from 90 to 99.9%, besides a quantitative chemical yield.
(FR) La présente invention concerne un procédé pratique de purification de la glycérine "blonde" issue de la production du biodiesel, sans distillation à pression réduite et sans nécessité de neutralisation du milieu au moyen d'agents chimiques classés tels que des bases organiques ou inorganiques. Dans le présent procédé de purification, les acétaux et les cétaux sont produits par cyclisation du triol respectif en présence de différents aldéhydes et cétones et en l'absence de catalyseurs acides additionnels. Les adduits cyclisés sont hydrolysés dans de l'eau distillée en différentes concentrations et la glycérine est récupérée avec un degré de pureté compris entre 90 et 99,9%, le rendement chimique étant en outre quantitatif.
(PT) A presente invenςão descreve um método prático de purificação da glicerina loura, oriunda da produção do biodiesel, isentó de destilaςão à pressão reduzida e sem a necessidade de neutralização do meio via agentes químicos classificados como bases orgânicas ou inorgânicas. No presente processo de purificaςão, acetais e cetais são produzidos a partir da ciclização do respectivo triol na presenςa de diferentes aldeídos e cetonas na ausência de catalisadores ácidos adicionais. Os adutos ciclizados são hidrolisados em diferentes concentraςões de água destilada e a glicerina é recuperada com grau de pureza que varia de 90 a 99,9%, além de o rendimento químico ser quantitativo.
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PE, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG)
Publication Language: Portugese (PT)
Filing Language: Portugese (PT)