US 12,435,001 B2
Compressed salt objects
Daniel Mandler, Jerusalem (IL); Noa Lapidot, Mevasseret Zion (IL); Andrea Buffa, Jerusalem (IL); Gabriel Dikovsky, Ari'el (IL); and Lihi Rikanati, Modi'in (IL)
Assigned to Yissum Research Development Company of the Hebrew University of Jerusalem Ltd., Jerusalem, IL (US)
Appl. No. 16/498,133
Filed by Yissum Research Development Company of the Hebrew University of Jerusalem Ltd., Jerusalem (IL)
PCT Filed Mar. 27, 2018, PCT No. PCT/IL2018/050354
§ 371(c)(1), (2) Date Sep. 26, 2019,
PCT Pub. No. WO2018/178980, PCT Pub. Date Oct. 4, 2018.
Claims priority of provisional application 62/613,472, filed on Jan. 4, 2018.
Claims priority of provisional application 62/479,675, filed on Mar. 31, 2017.
Prior Publication US 2020/0031714 A1, Jan. 30, 2020
Int. Cl. C04B 18/02 (2006.01); C04B 14/28 (2006.01); C04B 20/12 (2006.01); C04B 24/42 (2006.01); C04B 28/10 (2006.01); C04B 28/26 (2006.01); C04B 41/48 (2006.01); C04B 41/50 (2006.01); C04B 111/00 (2006.01)
CPC C04B 18/02 (2013.01) [C04B 14/28 (2013.01); C04B 20/12 (2013.01); C04B 24/42 (2013.01); C04B 28/10 (2013.01); C04B 28/26 (2013.01); C04B 41/48 (2013.01); C04B 41/50 (2013.01); C04B 2111/00293 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A compressed salt water-resistant object, comprising:
a salt combination of a water-soluble salt comprising sodium chloride and at least one additional metal halide capable of interacting with carbonate or stearate to form a water-insoluble salt, and at least one additive selected from the group consisting of a water-soluble carbonate and a water-soluble stearate,
wherein the water-soluble carbonate and/or the water-soluble stearate in said salt combination interacts in situ with metal ions present in said salt combination to provide a water-insoluble salt of the carbonate and/or stearate, to impart the object with resistance to water and humidity,
the compressed salt water-resistant object being characterized by a compressive strength of at least 20 MPa, wherein the water-soluble salt of said salt combination comprises the byproduct of an industrial process, and wherein at least 90 wt % based on total weight of the salt combination is sodium chloride;
wherein the compressed salt water-resistant object is non-deliquescent even in absence of a coating, when measured at 40° C. at below 74% relative humidity; and wherein the compressed salt water-resistant object is a at least one of a block, board, a building unit, or a construction unit; and
wherein the salt combination comprises:
at least 0.1 wt % magnesium or calcium;
at least 0.05 wt % potassium;
at least 0.05 wt % bromine; and
at least 0.05 wt % sulfate, wherein the amount of magnesium chloride or calcium chloride is less than 0.001 wt %.