Sentence examples for tailings content from inspiring English sources

In addition, pore structure analysis revealed a coarsening of micro-pore structure with an increase of the tailings content and a good correlation between the porosities and compressive strengths of the UHPC matrices, and microstructure image showed a possibly poor interfacial transition zone around some tailings particles.

The optimum conditions were found to be that the hematite tailings content were as high as 84%, forming water content and forming pressure were respectively in the range of 12.5 15% and 20 25 MPa, and the suitable firing temperature was ranged from 980 to 1030 °C for 2 h.

The morphology (FESEM-EDX), mineral constituent (XRD), thermal characteristics (TG-DSC) and crystal characteristics (29Si-NMR) of hydration products of AAC samples were analyzed to demonstrate the hydration characteristics of AAC products containing iron tailings effected by iron tailing content and fineness.

Table 1 Main properties of the tailings Natural water content: 17 %–24 % Dry density: 1,790 kg/m3 Void ratio: 0.61 Particle density: 2,750 kg/m3 Total volume of Masua basins: 2.4 Mineraleral composition: calcite, dolomite, quartz, Sphalerite and smithsonite Zn in the water leaching: 0.383 mg/L.

The effects of mass ratio among phosphate mine tailings, soft interlayer content and black shale and calcination parameters, such as preheating temperature, preheating time, sintering temperature and sintering time, on the properties of the ceramisite were investigated through single factor experimental testing.

Sulphur content in tailings samples was determined by X ray fluorescence using the spectrometer α6500 (INNOV-X, Woburn, MA, US).

The rule base of the algorithm can be corrected during the process of identification of the relation between ash content in tailings and amount of the reagent added.

Experimental tests are performed to determine the printable properties of mixtures containing various content of tailings, including the extrudability, buildability, flowability, open time, fresh and hardened properties, etc.

Chemical beneficiation route for improvement of coal quality was demonstrated in pilot scale to produce low ash (8 10%) clean coal with a yield more than 70% by demineralization of high ash content flotation tailings obtained in a typical Indian coal washery.

The obtained results showed firstly that the reuse of base-metal tailings with low sulfide content and relatively minor residual-metal concentrations (As ≈ 30 mg/kg, Cr ≈ 60 mg/kg, Pb ≈ 4500 mg/kg, Zn ≈ 250 mg/kg) generates mortars with good mechanical and durability performances.

The results from pilot scale flotation tests on an Outokumpu flotation unit are presented, which confirm that froth flotation is effective to reduce sulphide contents of tailings.