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1. (WO2017156615) METHOD AND SYSTEM FOR RECYCLING SPENT ETHYLENE GLYCOL FROM RECOVERED AIRCRAFT DE-ICING SOLUTIONS
Latest bibliographic data on file with the International Bureau   

Pub. No.: WO/2017/156615 International Application No.: PCT/CA2016/000074
Publication Date: 21.09.2017 International Filing Date: 16.03.2016
IPC:
C07C 29/76 (2006.01) ,C07C 31/20 (2006.01) ,C09K 3/18 (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
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
20
Dihydroxylic alcohols
C CHEMISTRY; METALLURGY
09
DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
K
MATERIALS FOR APPLICATIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
3
Materials not provided for elsewhere
18
for application to surface to minimize adherence of ice, mist or water thereto; Thawing or antifreeze materials for application to surfaces
Applicants:
AÉRO MAG 2000 RRR INC. [CA/CA]; 8171 Rue Hervé St-Martin St-Laurent, Québec H4S 2A5, CA
Inventors:
LÉPINE, Mario; CA
BERGERON, Ghislain; CA
GUY, Michel; CA
Agent:
HOULE, Guy, J.; HOULE PATENT AGENCY INC. 10 Talcy Blainville, Quebec J7B 6B8, CA
Priority Data:
Title (EN) METHOD AND SYSTEM FOR RECYCLING SPENT ETHYLENE GLYCOL FROM RECOVERED AIRCRAFT DE-ICING SOLUTIONS
(FR) PROCÉDÉ ET SYSTÈME DE RECYCLAGE DE L'ÉTHYLÈNEGLYCOL USÉ RÉCUPÉRÉ DANS DES SOLUTIONS DE DÉGIVRAGE D'AÉRONEFS
Abstract:
(EN) A method and a system for recycling spent ethylene or propylene glycol recovered from aircraft deicing solutions is described. The recovered spent ethylene or propylene glycol contains water and other undesirable substances which require to be removed to produce a solution free of these substances which can be further processed to remove substantially all of the water content and to blend-in additives required to certify the final glycol solution for aircraft deicing. The method and system employs a computer controller for continuous automatic batch processing of the spent glycol, including, in combination, filtering, distillation, blending and testing in specific sequences and achieves an improved quality recycled glycol of a purity of at least 99.5% and preferably between 99.6% to 99.9% glycol concentration.
(FR) L'invention concerne un procédé et un système permettant de recycler l'éthylèneglycol ou le propylèneglycol usé récupéré dans des solutions de dégivrage d'aéronefs. L'éthylèneglycol ou le propylèneglycol usé et récupéré contient de l'eau et d'autres substances indésirables qui nécessitent d'être éliminées pour produire une solution exempte de ces substances, ladite solution pouvant ensuite être traitée pour éliminer sensiblement toute l'eau et incorporer des additifs nécessaires à l'obtention d'une solution finale de glycol garantie pour le dégivrage des aéronefs. Le procédé et le système emploient un système de contrôle informatique pour un traitement par lot automatique en continu du glycol usé, consistant à, en association les uns avec les autres, filtrer, distiller, mélanger et tester des séquences spécifiques, et permettent d'obtenir un glycol recyclé de meilleure qualité ayant une pureté d'au moins 99,5 % et de préférence entre 99,6 % et 99,9 % de concentration de glycol.
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, 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, IR, IS, JP, KE, KG, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, 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, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, 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, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)