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1. (WO1997015527) METHOD FOR PRODUCING CRYSTALLINE TRISODIUM PHOSPHATE HYDRATES
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1997/015527 International Application No.: PCT/US1996/015784
Publication Date: 01.05.1997 International Filing Date: 10.10.1996
Chapter 2 Demand Filed: 12.05.1997
IPC:
C01B 25/30 (2006.01)
C CHEMISTRY; METALLURGY
01
INORGANIC CHEMISTRY
B
NON-METALLIC ELEMENTS; COMPOUNDS THEREOF
25
Phosphorus; Compounds thereof
16
Oxyacids of phosphorus; Salts thereof
26
Phosphates
30
Alkali metal phosphates
Applicants:
MONSANTO COMPANY [US/US]; 800 North Lindbergh Boulevard St. Louis, MO 63167, US (AllExceptUS)
HIGHFILL, Louis, A. [US/US]; US (UsOnly)
Inventors:
HIGHFILL, Louis, A.; US
Agent:
SIECKMANN, Gordon, F.; Fitzpatrick, Cella, Harper & Scinto 277 Park Avenue New York, NY 10172 , US
Priority Data:
60/008,10913.10.1995US
Title (EN) METHOD FOR PRODUCING CRYSTALLINE TRISODIUM PHOSPHATE HYDRATES
(FR) PROCEDE DE PRODUCTION D'HYDRATES CRISTALLINS DE PHOSPHATE TRISODIQUE
Abstract:
(EN) A novel melt crystallization method for forming crystalline trisodium phosphate hydrates from a sodium phosphate solution on a contacting surface. The contacting surface is maintained at a temperature below the melt temperature of the crystalline trisodium phosphate solution. The solution, upon contact with the contacting surface, crystallizes into one of the hydrated forms of crystalline trisodium phosphate.
(FR) La présente invention concerne un nouveau procédé de cristallisation à l'état fondu, visant à former des hydrates cristallins de phosphate trisodique à partir d'une solution de phosphate trisodique, sur une surface de mise en contact. Celle-ci est maintenue à une température inférieure à la température de fusion de la solution de phosphate trisodique cristallin. Lorsqu'elle entre en contact avec cette surface, la solution se cristallise, donnant l'une des formes hydratées du phosphate trisodique cristallin.
Designated States: AL, AM, AT, AU, AZ, BA, BB, BG, BR, BY, CA, CH, CN, CU, CZ, DE, DK, EE, ES, FI, GB, GE, HU, IL, IS, JP, KE, KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MD, MG, MK, MN, MW, MX, NO, NZ, PL, PT, RO, RU, SD, SE, SG, SI, SK, TJ, TM, TR, TT, UA, UG, US, UZ, VN
African Regional Intellectual Property Organization (ARIPO) (KE, LS, MW, SD, SZ, UG)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, CH, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
AU1996073848