Modeling and optimization of reagent dosages and pH for efficient floc-flotation of suspended particles in Jameson flotation cell by CCD

Taşdemir, Tuba; Taşdemir, Adem

doi:10.1016/j.jwpe.2023.104243

Cited by 2 publications

(1 citation statement)

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“…However, due to the lack of selectivity, this also results in together flotation of barite and low-density solid phases, leading to a decrease in concentrate yield. This decrease in barite recovery and the subsequent reduction in concentrate density present a challenge to the flotation separation of barite from low-density solid phases [ 40 ]. Therefore, the use of depressant is crucial for the effective flotation separation of barite [ 41 , 42 ].…”

Section: Resultsmentioning

confidence: 99%

Flotation recovery of barite from high-density waste drilling fluid using β-cyclodextrin as a novel depressant and its mechanism

Li,

Xie,

et al. 2024

PLoS ONE

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High-density waste drilling fluid contains an abundance of recyclable weighting reagents, direct disposal can pollute the environment. In this paper, the primary mineral composition of a high-density waste drilling fluid from a well in the southwest oil and gas field was analyzed. This paper proposes β-cyclodextrin (β-CD) as a depressant for the recovery of barite from waste drilling fluid. The recovery process was investigated through inverse flotation experiments, and the mechanism was analyzed using zeta potential, contact angle analysis, and FTIR. The flotation experiments showed that under the SDS flotation system, when the pH was 9.0 and the amount of depressant β-CD was 900 g/t, the barite recovery and density reached the highest values, which were 87.41% and 4.042 g/cm3, respectively. Zeta potential experiments, contact angle analysis, and FTIR analysis indicate that β-CD adsorbed onto barite through enhancing the hydrophilicity of barite, electrostatic force adsorption, and strong adsorption, which could not be displayed by SDS through competitive adsorption. Furthermore, β-CD exhibited a selective inhibitory effect on barite and enabled reverse flotation. The mechanism model of the flotation separation process was established.

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Section: Resultsmentioning

confidence: 99%