Calera Corporation

Guillaume Calas

Martin Devenney

Irvin Chen

William L Bourcier

Michael Joseph Weiss

Chris L Camire

Miguel Fernandez

Eric Ha

Peng Lu

Chantel Cabrera Tester

Treavor Kendall

Provided herein are methods comprising a) treating a slag solid or carbide lime suspension with an ammonium salt in water to produce an aqueous solution comprising calcium salt, ammonium salt, and solids; b) contacting the aqueous solution with carbon dioxide from an industrial process under one or more precipitation conditions to produce a precipitation material comprising calcium carbonate and a supernatant aqueous solution wherein the precipitation material and the supernatant aqueous solution comprise residual ammonium salt; and c) removing and optionally recovering ammonia and/or ammonium salt using one or more steps of (i) recovering a gas exhaust stream comprising ammonia during the treating and/or the contacting step; (ii) recovering the residual ammonium salt from the supernatant aqueous solution; and (iii) removing and optionally recovering the residual ammonium salt from the precipitation material.

Methods and systems for utilizing carbide lime or slag

Formed building materials comprising a sequestered COare provided. The building materials of the invention include a composition comprising a carbonate/bicarbonate component. Additional aspects of the invention include methods of making and using the formed building materials.

Formed building materials

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Mountain View, CA, United States of America

Guillaume Calas