Carbon Dioxide → Magnesium bicarbonate

HRID 2405529Notes

Reaction equation

HRID 2405529 reaction equation
[O-2:1].[Mg+2:2].[C:3](=[O:5])=[O:4]>O>[C:3](=[O:1])([OH:5])[O-:4].[Mg+2:2].[C:3](=[O:1])([OH:5])[O-:4]

Participants

4

Reactant 2

HCID 280Carbon DioxideHCID 6850729Magnesium monoxide2×

Product 1

HCID 102204Magnesium bicarbonate

Reagents, catalysts & solvents 1

HCID 962WaterSolvent3×

Procedure

A light-burned magnesia, made from calcination of magnesite (Si 3.2 wt %, Fe 0.7 wt %, Al 0.37 wt %) at 900° C. for 2 hours, is hydrated for 2 hours at 80° C. The weight ratio of water to magnesium oxide is 2:1. Then water is added into the mixture to prepare slurry at a weight ratio of water to magnesium oxide of 57:1. After that, carbon dioxide (80 vt %) is introduced into the slurry to react for 2 hours at 20° C. Subsequently, a pure magnesium bicarbonate solution (MgO: 15.3 g/L, Fe: 1.51 ppm, Al: 1.2 ppm) is obtained after filtration.

Workup

  1. customto react for 2 hours at 20° C

Sources & evidence

ORD record
ord-1205ed12dc8f40e083dda1f227004242
Source dataset
uspto-grants-2014_08
Patent number
US08808660B2

Reaction notes

Loading…