Production of low-carbon amorphous precipitated silica and hydrated magnesium carbonate from olivine

A novel process is reported that produces amorphous silica and nesquehonite (MgCO3.3H2O) from the magnesium silicate mineral olivine ((Mg,Fe)2.SiO4). The amorphous silica formed is a supplementary cementitious material (SCM) for use in concrete. The formation of nesquehonite sequesters carbon and means that the overall process is carbon negative. Nesquehonite can also be used to form low-carbon construction products such as bricks, blocks, and boards. This paper reports on key process optimisation studies. The potential for amorphous precipitated silica derived from olivine to produce carbon-negative concrete is discussed., , , # Production of low-carbon amorphous precipitated silica and hydrated magnesium carbonate from olivine

1\. Title of dataset: Production of low-carbon amorphous precipitated silica and hydrated magnesium carbonate from olivine

2\. Authors:

Barney Shanks -

Caitlin Howe -

Sam Draper -

Mike Cook -

Hong Wong* -

Christopher Cheeseman* -

\* Corresponding authors

 3. Affiliation:

Centre for Infrastructure Materials, Department of Civil and Environmental Engineering, Imperial College London, London SW7 2AZ, United Kingdom

4\. Date of data collection: 2022-2023

5\. Geographic location of data collection: London, United Kingdom

6\. Description of the data and file structure

Filename: ProcessPaperData.xlsx

Description: Excel file containing experimental data organised into eight individual worksheets. Each sheet contains the raw and processed data (where applicable) that are presented in the corresponding figures in the full paper.    

Sheet #1: Figure 3

Description: X-ray...