SG11201804770QA - Method and arrangement for recovery of salt - Google Patents

Abstract

INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property -' Organization International Bureau ristspi id (43) International Publication Date .... .....r ,„„0 29 June 2017(29.06.2017) WIPO I PCT II (10) 111111111111111111111 WO International IIIIIIIIII II III 2017/111685 III III Publication IIIIIHIIIIIIIIIIMIIIIIII Number Al IIIIIIII (51) International Patent Classification: (81) Designated States (unless otherwise indicated, for every B09B 3/00 (2006.01) COIF 11/32 (2006.01) kind of national protection available): AE, AG, AL, AM, COLD 3/08 (2006.01) 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, (21) International Application Number: DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, PCT/SE2016/051282 HN, HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, KH, KN, (22) International Filing Date: KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, 19 December 2016 (19.12.2016) MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, (25) Filing Language: English RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, (26) Publication Language: English TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW. (30) Priority Data: 1551685-9 21 December 2015 (21.12.2015) SE (84) Designated States (unless otherwise indicated, for every kind of regional protection available): ARIPO (BW, GH, (71) Applicant: EASYMINING SWEDEN AB [SE/SE]; Box GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, 322, SE-751 05 Uppsala (SE). TZ, UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, (72) Inventor: COHEN, Yariv; Sibyllegatan 17B, SE-752 29 TJ, TM), European (AL, AT, BE, BG, CH, CY, CZ, DE, Uppsala (SE). 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, (74) Agent: AROS PATENT AB; Box 1544, SE-751 45 SM, TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, Uppsala (SE). GW, KM, ML, MR, NE, SN, TD, TG). [Continued on next page] Title: METHOD AND ARRANGEMENT FOR RECOVERY (54) OF SALT (57) : A method for recovery of salts comprises providing (210) of an initial aqueous solution comprising START 200 ions Na, K, Cl Ca of and optionally or a material which I brought in contact with water foiins an initial when ions Na, K, Cl and option- aqueous solution comprising of PROVIDE START MATERIAL 210 ally Ca. The start material is treated (230) into an enriched aqueous solution having a concentration of CaC1 2 of at TREAT START MATERIAL INTO least 15% by weight. The treatment (230) comprises at X230 ENRICHED AQUEOUS least one of reduction of water content and addition of Ca. SOLUTION OF > 15% BY The treatment Na Cl (230) generates a solid mix of and WEIGHT CaC1 2 GIVING SOLID KC1. The solid mix of NaC1 and KC1 is separated (235) MIX OF NaC1 AND KC1 from depleted the enriched aqueous solution, giving a ions Ca and Cl dis aqueous solution comprising of as main - SEPARATE SOLID MIX OF NaC1 235 An for is solved substances. arrangement recovery of salts KC1 also disclosed. I AND ^,-- PURIFYING 250 j ADD SOLID MIX INTO CaC12 AQUEOUS SOLUTION 240 _ L. _ I r SEPARATE NaC1 AND KC1 1-1 245 ---k— INTO INDIVIDUAL , FRACTIONS T .4t in C END >---299 GC C) Il Il 1-1 Fig. 4 -..... it-- 1-1 o ei O WO 2017/111685 Al 1#11101M011111 11111111OIDE31111111111111111111111111111110111111111111 Declarations under Rule 4.17: Published: — as to applicant's entitlement to apply for and a patent (Rule 4.17(ii)) be granted — with international search report (Art. 21(3)) — of inventorship (Rule 4.17(iv))