Methods and compositions using calcium carbonate and stabilizer
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.
1. A composition, comprising at least 50% w/w activated vaterite and between 0.1-0.6 wt % stabilizer wherein the stabilizer comprises the stabilizer incorporated in crystal lattice of the activated vaterite and wherein the stabilizer is sulfate.
2. The composition of claim 1 , wherein the composition further comprises amorphous calcium carbonate, a precursor phase of vaterite, a precursor phase of aragonite, or combination thereof.
3. The composition of claim 1 , wherein the composition comprises at least 90% w/w activated vaterite.
4. The composition of claim 1 , wherein the composition further comprises 50-20,000 ppm magnesium and/or 1-50,000 ppm strontium.
5. The composition of claim 1 , wherein the sulfate is sulfate in sea water, an alkali metal sulfate, alkaline earth metal sulfate, lignosulfate, or combination thereof.
6. The composition of claim 1 , wherein the composition after combination with water, setting and hardening has a compressive strength in a range of 14-40 MPa.
7. The composition of claim 1 , wherein the composition has a carbon isotopic fractionation value (δ 13 C) of less than −12%.
8. The composition of claim 1 , further comprising Portland cement clinker, aggregate, other supplementary cementitious material (SCM), or combination thereof.
9. The composition of claim 1 , wherein the stabilizer is an alkali metal sulfate.
10. The composition of claim 9 , wherein more than 90% of the sulfate in the composition is from the stabilizer.
11. A method for making a composition, comprising:
contacting CO 2 from a CO 2 source with a solution comprising proton removing agent, alkaline earth-metal ions and a stabilizer to make a composition comprising at least 50% w/w activated vaterite and between 0.1-0.6 wt % stabilizer wherein the stabilizer comprises the stabilizer incorporated in crystal lattice of the activated vaterite in the composition and wherein the stabilizer is sulfate.
12. The method of claim 11 , wherein the contacting is under one or more conditions selected from the group consisting of mixing, stirring, temperature, pH, precipitation, residence time of the precipitate, dewatering of precipitate, washing precipitate with water, ion ratio, concentration of additives, drying, milling, grinding, storing, aging, and curing.
13. The method of claim 11 , comprising activating the composition by nuclei activation, thermal activation, mechanical activation, chemical activation, or combination thereof.
14. The method of claim 13 , wherein the activation comprises adding one or more of aragonite seed, inorganic additive or organic additive.
15. The method of claim 11 , further comprising combining the composition with water and facilitating vaterite transformation to aragonite when the compostion sets and hardens to form cement.
16. The method of claim 15 , wherein the facilitating the aragonite formation results in one or more of better linkage or bonding, higher tensile strength, or higher impact fracture toughness, after cementation of the composition.
17. A composition formed by a method, comprising contacting CO 2 from a CO 2 source with a solution comprising proton removing agent, alkaline earth-metal ions and a stabilizer to make a composition comprising at least 50% w/w activated vaterite and between 0.1-0.6 wt % stabilizer wherein the stabilizer comprises the stabilizer incorporated in crystal lattice of the activated vaterite and wherein the stabilizer is sulfate.
18. The method of claim 11 , wherein the contacting is under condition comprising having ratio of calcium to carbonate during formation of vaterite to be between 1:1 to 1.5:1.
19. The composition of claim 1 , wherein the composition further comprises one or more of aragonite seed, inorganic additive or organic additive.
20. The composition of claim 19 , wherein the inorganic additive or organic additive are selected from the group consisting of sodium decyl sulfate, lauric acid, sodium salt of lauric acid, urea, citric acid, sodium salt of citric acid, phthalic acid, sodium salt of phthalic acid, taurine, creatine, dextrose, poly(n-vinyl-1-pyrrolidone), aspartic acid, sodium salt of aspartic acid, magnesium chloride, acetic acid, sodium salt of acetic acid, glutamic acid, sodium salt of glutamic acid, strontium chloride, gypsum, lithium chloride, sodium chloride, glycine, sodium citrate dehydrate, sodium bicarbonate, magnesium sulfate, magnesium acetate, sodium polystyrene, sodium dodecylsulfonate, poly-vinyl alcohol, or combinations thereof.
21. The composition of claim 20 , wherein the composition comprises between 0.1-5% w/w inorganic additive or organic additive.
22. The composition of claim 1 , wherein the composition is a precipitate, slurry, or a dry powder.
23. The composition of claim 1 , wherein the composition has a particle size of between 0.1-100 microns.
24. The method of claim 11 , wherein the composition has a particle size of between 0.1-100 microns.