The influence of cellulose ethers on rheological properties and stability of water-ethanol coal suspensions

The rheological properties of coal water-ethanol suspensions stabilized with cellulose ethers high molecular mass have been investigated. For stabilization following chemicals were used: hydroxypropyl cellulose, 2-hydroxyethyl cellulose, methyl 2-hydroxyethyl cellulose. The influence of molecular mass of hydroxypropyl cellulose on suspensions rheological properties has been shown. The application of 2-hydroxyethyl cellulose as stabilizer has been found to give suspensions with the least viscidity and the highest stability.