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1. (WO2017174765) METHOD FOR PRODUCING XYLYLENE DIISOCYANATE (XDI)
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Pub. No.: WO/2017/174765 International Application No.: PCT/EP2017/058341
Publication Date: 12.10.2017 International Filing Date: 07.04.2017
IPC:
C07C 263/10 (2006.01) ,C07C 263/20 (2006.01) ,C07C 265/14 (2006.01)
C CHEMISTRY; METALLURGY
07
ORGANIC CHEMISTRY
C
ACYCLIC OR CARBOCYCLIC COMPOUNDS
263
Preparation of derivatives of isocyanic acid
10
by reaction of amines with carbonyl halides, e.g. with phosgene
C CHEMISTRY; METALLURGY
07
ORGANIC CHEMISTRY
C
ACYCLIC OR CARBOCYCLIC COMPOUNDS
263
Preparation of derivatives of isocyanic acid
18
Separation; Purification; Stabilisation; Use of additives
20
Separation; Purification
C CHEMISTRY; METALLURGY
07
ORGANIC CHEMISTRY
C
ACYCLIC OR CARBOCYCLIC COMPOUNDS
265
Derivatives of isocyanic acid
14
containing at least two isocyanate groups bound to the same carbon skeleton
Applicants:
VENCOREX FRANCE [FR/FR]; 196 Allée Alexandre Borodine 69800 SAINT-PRIEST, FR
Inventors:
RATABOUL-LEDUC, Anne-Marie; FR
BERNARD, Jean-Marie; FR
TOURNAYRE, Julien; FR
Agent:
GROSBOIS, Mathilde; FR
COLOMBET, Alain; FR
VEINANTE, Aude; FR
MYON, Gérard; FR
GRAND, Guillaume; FR
Priority Data:
165305107.04.2016FR
Title (EN) METHOD FOR PRODUCING XYLYLENE DIISOCYANATE (XDI)
(FR) PROCÉDÉ DE PRÉPARATION DES XYLYLÈNE DIISOCYANATES XDI
Abstract:
(EN) The invention relates to a method for producing xylylene diisocyanate (XDI), in particular meta-xylylene diisocyanate (mXDI), comprising the following steps: a) phosgenation of xylylene-diamine (XDA), in particular m-xylylene-diamine (mXDA) in the case of mXDI; b) eliminating the hydrochloric acid from the reaction medium obtained in step (a) at a temperature of between 120 and 190°C and a pressure of between 1 mbar and 20 bar.
(FR) La présente invention concerne un procédé de préparation des xylylène diisocyanates XDI, en particulier du méta-xylylènediisocyanate m XDI, comprenant les étapes de : a. phosgénation de la xylylène-diamine XDA, en particulier de la m- xylylène diamine m XDA dans le cas du m XDI; b. élimination de l'acide chlorhydrique du milieu réactionnel obtenu à l'étape a) à une température comprise entre 120 et 190°C et à une pression comprise entre 1 mbar et 20 bars.
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, DJ, 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, KH, KN, KP, KR, KW, 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: French (FR)
Filing Language: French (FR)