Methods and compositions using calcium carbonate and stabilizer

摘要

Provided herein are compositions, methods, and systems for a material containing metastable carbonate and stabilizer. Methods for making the compositions and using the compositions are also provided.

主权项

1. A method for making a composition, comprising:
contacting CO2 from a CO2 source with a solution comprising proton removing agent, alkaline earth-metal ions and a stabilizer under one or more conditions to make a composition comprising at least 50% w/w activated vaterite and the stabilizer wherein the stabilizer is sulfate and wherein the stabilizer in the solution is between 0.1-1 wt %, and combining the composition with water and facilitating vaterite transformation to aragonite when the composition sets and hardens to form cement.