WO 2022/036006 A1

Chemical calcium hydroxide manufacturing for cement production using electrochemical separation devices

(22) 11.08.2021

(43) 17.02.2022

(57) An electrochemical method for producing calcium hydroxide includes dissolving a calcium precursor in a first solution in contact with a first electrode to produce Ca2+ ions, transporting the Ca2+ ions across a first membrane from the first solution into a second solution using a first electrochemical potential, producing hydroxide ions at a second electrode, transporting the hydroxide ions across a second membrane into the second solution using a second electrochemical potential, and precipitating calcium hydroxide from the second solution.

(71) The Regents of the University of California, 1111 Franklin Street, 12th Floor, Oakland, California 94607-5200 (US)

x

Related articles:

Issue 8/2023 US 2023/0304166 A1

Chemical calcium hydroxide manufacturing for cement production using electrochemical separation devices

(22) 11.08.2021 (43) 28.09.2023 (57) An electrochemical method for producing calcium hydroxide includes dissolving a calcium precursor in a first solution in contact with a first electrode to produce...

more
Issue 4/2022 US 2022/0081311 A1

Sustainable calcium hydroxide production for green cement

(22) 24.08.2021 (43) 17.03.2022 (57) A method of making a composition of matter comprising calcium hydroxide. The method includes the steps of contacting a calcium-containing molecule with an aqueous...

more
Issue 3/2022 WO 2022/036923 A1

Technological process for changing physical and chemical properties of new phosphogypsum by using calcium hydroxide

(22) 02.12.2020 (43) 24.02.2022 (57) A technological process for changing physical and chemical properties of new phosphogypsum by using calcium hydroxide, relating to the technical field of new...

more
Issue 3/2021 US 2021/0047742 A1

Method of making alkali and gypsum by proton-coupled electron transfer reaction

(22) 16.08.2019 (43) 18.02.2021 (57) The present disclosure provides a method for preparing an alkali and co-producing gypsum, and belongs to the technical field of chemical production. The method...

more
Issue 4/2022 EP 3 984 632 A1

Method and apparatus for producing desulfurizing agent, and method for removing sulfur dioxide from cement kiln exhaust gas

(22) 01.08.2019 (43) 20.04.2022 (57) [Problem] To provide a method and an apparatus for producing a desulfurizing agent in which good handleability is achieved; the water content is easily adjusted;...

more