The study on the effect of flotation purification on the performance of α-hemihydrate gypsum prepared from phosphogypsum

M Du, J Wang, F Dong, Z Wang, F Yang, H Tan, K Fu… - Scientific Reports, 2022 - nature.com
Phosphogypsum (PG) is a massive industrial solid waste. In this paper, PG was purified by
flotation method, and α-hemihydrate gypsum (α-HH) was prepared by the autoclaving …

Synthesis of α-hemihydrate gypsum from cleaner phosphogypsum

B Ma, W Lu, Y Su, Y Li, C Gao, X He - Journal of cleaner production, 2018 - Elsevier
Phosphogypsum (PG), as a waste by-product with high content and complicated impurities,
is difficult to be utilised effectively. Herein, cleaner PG is prepared with “HClsingle bondH 2 …

Recycling of waste gypsum from αlpha-hemihydrate phosphogypsum: Based on the atmospheric hydrothermal process

Z Jin, C Cui, Z Xu, W Lu, Y Su, X He, S Chen… - … and Building Materials, 2023 - Elsevier
Phosphogypsum (PG) is a typical solid waste in the phosphorus chemical industry, which
restricts the sustainable development of the phosphorus chemical industry. From the …

Effect of oxalic acid pretreatment on the mechanical properties and microstructure of phosphogypsum

W Zhang, L Zhao, M Xue, X Duan, C Feng… - Construction and Building …, 2023 - Elsevier
In China, the amount of phosphogypsum (PG) accumulated has been increasing rapidly with
the development of the phosphate fertilizer industry. PG exists mainly in the form of dihydrate …

Preparation of α-hemihydrate gypsum from phosphogypsum in glycerol and Na2SO4 mixed solutions under atmospheric pressure

X Li, Y He - Journal of Crystal Growth, 2021 - Elsevier
Preparation of α-hemihydrate gypsum (α-HH) from phosphogypsum (PG) by atmospheric
hydrothermal method has a good application prospect due to the mild reaction conditions …

[PDF][PDF] A novel method for purification of phosphogypsum

J Wang, F Dong, Z Wang, F Yang, M Du… - … Problems of Mineral …, 2020 - bibliotekanauki.pl
Phosphogypsum is an industrial solid waste from the phosphate fertilizer industry. At
present, the accumulation of phosphogypsum has caused very serious economic and …

Preparation of α-hemihydrate gypsum from phosphogypsum in recycling CaCl2 solution

W Lu, B Ma, Y Su, X He, Z Jin, H Qi - Construction and Building Materials, 2019 - Elsevier
Preparing α-hemihydrate gypsum (α-HH) from phosphogypsum (PG) in electrolyte solution
and atmospheric pressure has been developed as an energy-efficient and profitable method …

Efficient precipitation of soluble phosphorus impurities in the recycling of phosphogypsum to produce hemihydrate gypsum

W Zhang, L Zhao, M Xue, X Duan, C Feng… - Journal of Cleaner …, 2023 - Elsevier
Phosphogypsum (PG), a waste product of the phosphate fertilizer industry, is a source of
environmental pollution. PG can be calcined to form the hemihydrate gypsum (β-CaSO 4• …

Comparative analysis of colloid-mechanical microenvironments on the efficient purification of phosphogypsum

S Chen, J Chen, X He, Y Su, Z Jin, J Fan, H Qi… - … and Building Materials, 2023 - Elsevier
The storage of phosphogypsum could bring huge burden to the environment, while the
traditional method of washing and purifying phosphogypsum produced a large amount of …

Effect of Soluble P2O5 Form on the Hydration and Hardening of Hemihydrate Phosphogypsum

J Zhang, X Wang, B Jin, C Liu… - Advances in Materials …, 2022 - Wiley Online Library
The preparation of building gypsum from phosphogypsum is one of the ways to realize its
resource utilization. However, the precondition is first to reveal the influence mechanism of …