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1. (WO2018052767) METHOD FOR PRODUCING POTASSIUM SULFATE FROM POTASSIUM CHLORIDE AND SULFURIC ACID
Latest bibliographic data on file with the International Bureau    Submit observation

Pub. No.: WO/2018/052767 International Application No.: PCT/US2017/050156
Publication Date: 22.03.2018 International Filing Date: 06.09.2017
Chapter 2 Demand Filed: 11.07.2018
IPC:
C01B 7/03 (2006.01) ,C01D 5/02 (2006.01)
Applicants: VEOLIA WATER TECHNOLOGIES, INC.[US/US]; Airside Business Park 250 Airside Drive Moon Township, Pennsylvania 15108, US
Inventors: BESSENET, Sebastien; US
LE FLAMMEC, Didier; FR
Agent: COATS, Larry L.; US
Priority Data:
62/393,93413.09.2016US
Title (EN) METHOD FOR PRODUCING POTASSIUM SULFATE FROM POTASSIUM CHLORIDE AND SULFURIC ACID
(FR) PROCÉDÉ DE PRODUCTION DE SULFATE DE POTASSIUM À PARTIR DE CHLORURE DE POTASSIUM ET D'ACIDE SULFURIQUE
Abstract: front page image
(EN) A process is provided for producing potassium sulfate from potassium chloride and sulfuric acid. The process entails mixing potassium chloride with the water to form a potassium chloride slurry which is mixed with recycled sulfuric acid to form a K+, Ct', SO42,, acid mixture. This mixture is subjected to a crystallization process that produces potassium sulfate crystals and a hydrochloric acid-water vapor. The hydrochloric acid is separated from the hydrochloric acid- water vapor to form a hydrochloric acid solution.
(FR) L'invention concerne également un procédé de production de sulfate de potassium à partir de chlorure de potassium et d'acide sulfurique. Le procédé consiste à mélanger du chlorure de potassium avec l'eau pour former une suspension de chlorure de potassium qui est mélangée avec de l'acide sulfurique recyclé pour former un mélange d'acide K+, Ct', SO4 2,, ,. Ce mélange est soumis à un processus de cristallisation qui produit des cristaux de sulfate de potassium et une vapeur d'acide chlorhydrique-eau. L'acide chlorhydrique est séparé de la vapeur d'acide chlorhydrique-eau pour former une solution d'acide chlorhydrique.
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, JO, 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: English (EN)
Filing Language: English (EN)