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1. WO2006048188 - IMPROVED PROCESS FOR THE PREPARATION OF ZMS-5 ZEOLITES

Publication Number WO/2006/048188
Publication Date 11.05.2006
International Application No. PCT/EP2005/011550
International Filing Date 25.10.2005
Chapter 2 Demand Filed 24.01.2006
IPC
C01B 39/38 2006.1
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF
39Compounds having molecular sieve and base-exchange properties, e.g. crystalline zeolites; Their preparation; After-treatment, e.g. ion-exchange or dealumination
02Crystalline aluminosilicate zeolites; Isomorphous compounds thereof; Direct preparation thereof; Preparation thereof starting from a reaction mixture containing a crystalline zeolite of another type, or from preformed reactants; After-treatment thereof
36Pentasil type, e.g. types ZSM-5, ZSM-8 or ZSM-11
38Type ZSM-5
C01B 39/40 2006.1
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF
39Compounds having molecular sieve and base-exchange properties, e.g. crystalline zeolites; Their preparation; After-treatment, e.g. ion-exchange or dealumination
02Crystalline aluminosilicate zeolites; Isomorphous compounds thereof; Direct preparation thereof; Preparation thereof starting from a reaction mixture containing a crystalline zeolite of another type, or from preformed reactants; After-treatment thereof
36Pentasil type, e.g. types ZSM-5, ZSM-8 or ZSM-11
38Type ZSM-5
40using at least one organic template directing agent
CPC
C01B 39/38
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; ; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
39Compounds having molecular sieve and base-exchange properties, e.g. crystalline zeolites; Their preparation; After-treatment, e.g. ion-exchange or dealumination
02Crystalline aluminosilicate zeolites; Isomorphous compounds thereof; Direct preparation thereof; Preparation thereof starting from a reaction mixture containing a crystalline zeolite of another type, or from preformed reactants; After-treatment thereof
36Pentasil type, e.g. types ZSM-5, ZSM-8 or ZSM-11
38Type ZSM-5
C01B 39/40
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; ; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
39Compounds having molecular sieve and base-exchange properties, e.g. crystalline zeolites; Their preparation; After-treatment, e.g. ion-exchange or dealumination
02Crystalline aluminosilicate zeolites; Isomorphous compounds thereof; Direct preparation thereof; Preparation thereof starting from a reaction mixture containing a crystalline zeolite of another type, or from preformed reactants; After-treatment thereof
36Pentasil type, e.g. types ZSM-5, ZSM-8 or ZSM-11
38Type ZSM-5
40using at least one organic template directing agent
Applicants
  • SASOL ITALY S.p.A. [IT]/[IT] (AE, AG, AL, AM, AT, AU, AZ, BA, BB, BE, BF, BG, BJ, BR, BW, BY, BZ, CA, CF, CG, CH, CI, CM, CN, CO, CR, CU, CY, CZ, DE, DK, DM, DZ, EC, EE, EG, ES, FI, FR, GA, GB, GD, GE, GH, GM, GN, GQ, GR, GW, HR, HU, ID, IE, IL, IN, IS, IT, JP, KE, KG, KM, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, LY, MA, MC, MD, MG, MK, ML, MN, MR, MW, MX, MZ, NA, NE, NG, NI, NL, NO, NZ, OM, PG, PH, PL, PT, RO, RU, SC, SD, SE, SG, SI, SK, SL, SM, SN, SY, SZ, TD, TG, TJ, TM, TN, TR, TT, TZ, UA, UG, UZ, VC, VN, YU, ZA, ZM, ZW)
  • ZATTA, Agostino [IT]/[IT] (UsOnly)
  • RABAIOLI, Maria Roberta [IT]/[IT] (UsOnly)
  • RADICI, Pierino [IT]/[IT] (UsOnly)
  • AIELLO, Rosario [IT]/[IT] (UsOnly)
  • CREA, Fortunato [IT]/[IT] (UsOnly)
  • FRONTERA, Patrizia [IT]/[IT] (UsOnly)
  • GIUFFRIDA, Giuseppe [IT]/[IT] (UsOnly)
Inventors
  • ZATTA, Agostino
  • RABAIOLI, Maria Roberta
  • RADICI, Pierino
  • AIELLO, Rosario
  • CREA, Fortunato
  • FRONTERA, Patrizia
  • GIUFFRIDA, Giuseppe
Agents
  • DE GREGORI, Antonella
Priority Data
MI2004A00213608.11.2004IT
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) IMPROVED PROCESS FOR THE PREPARATION OF ZMS-5 ZEOLITES
(FR) PROCEDE DE PREPARATION AMELIORE DE ZEOLITES ZMS-5
Abstract
(EN) Process for the synthesis of ZMS-5 zeolites essentially consisting of: a. preparing two aqueous solutions of sodium aluminate and silicate; b. putting the two solutions in contact with each other under stirring at room temperature; c. adding a solution of a mineral acid to solution (a) or to solution (b) or to solution (a) + (b), in such a quantity that the molar ratio OH-/H20 ranges from 0.02 to 0.03; d. adding a quantity of water sufficient for maintaining fluid the reacting mixture and the molar ratio OH-/H20 from 0.017 to 0.022; e. pre-heating the final mixture obtained at the end of steps (a) - (d) at a temperature ranging from 20 to 60°C; and f. heating the mixture, under stirring, at a temperature ranging from 100 to 200°C.
(FR) L'invention concerne un procédé de synthèse de zéolites ZMS-5, consistant principalement à: (a) préparer deux solutions aqueuses d'aluminate de sodium et de silicate, (b) mettre les deux solutions en contact l'une avec l'autre et les mélanger à température ambiante, (c) ajouter une solution d'acide minéral à la solution (a) ou à la solution (b) ou à la solution (a) + (b), dosée de manière à obtenir un rapport moléculaire OH-/H20 compris entre 0,017 et 0,022; (e) préchauffer le mélange final obtenu à la fin des étapes (a) (d) à une température comprise entre 10 et 60 °C, et (f) chauffer le mélange en le brassant à une température comprise entre 100 et 200°C.
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