WO 2019/040995 A1

Mining method and mine

(22) 31.08.2018

(43) 07.03.2019

(57) A method of mining gypsum includes: in-situ leaching gypsum in a harvesting bed, such as a leach pad 5, in an existing gypsum resource with a leach liquor and dissolving or otherwise washing gypsum and producing upgraded gypsum in the harvesting bed. The method also includes harvesting or otherwise removing upgraded gypsum from the harvesting bed and transporting upgraded gypsum directly as a marketable product to a port or other location.

(71) Dampier Salt Limited, Level 22, 152-158 St Georges Terrace, Perth, Western Australia 6104 (AU)

(84) ARIPO (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, TJ, TM), European (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IF, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)

x

Related articles:

Issue 2016-6 HK 1210135 A1

Gypsum composition, gypsum slurry, gypsum hardened body, gypsum-based construction material, gypsum board, and ­method for producing gypsum-based construction material

(22) 02.11.2015 (45) 15.04.2016 (57) Summary of corresponding patent EP2896605 A1: [Problems] An object is to provide a gypsum composition, a gypsum slurry, a gypsum hardened body, a gypsum-based...

more
Issue 2020-5-6 US 2020/0078980 A1

Gypsum panels, systems, and methods

(22) 25.10.2017 (43) 12.03.2020 (57) Gypsum panels and methods of making the same are provided. A method of making a gypsum panel includes forming a first gypsum slurry by combining stucco, water, a...

more
Issue 2018-11 EP3371100 (A1)

Method for reducing elemental sulfur in gypsum products

(22) 03.11.2016 (43) 12.09.2018 (57) Disclosed are various methods for reducing levels of elemental sulfur within gypsum products such as wall board. Gypsum sometimes includes increased levels of...

more
Issue 2017-5 US 2017/0073271 A1

Gypsum hardened body, gypsum panel, method for manufacturing gypsum hardened body, and method for manufacturing gypsum board

(22) 23.05.2014 (43) 16.03.2017 (57) A gypsum hardened body including a gypsum slurry that has been hardened is provided. The gypsum slurry is obtained by mixing calcined gypsum, calcium hydrogen...

more
Issue 2015-9 EP 2 896 605 A1

Gypsum composition, gypsum slurry, gypsum hardened body, gypsum-based construction material, gypsum board, and ­method for producing gypsum-based construction material

(22) 21.05.2013 (43) 22.07.2015 (57) [Problems] An object is to provide a gypsum composition, a gypsum slurry, a gypsum hardened body, a gypsum-based building material, a gypsum board, and a...

more