Novel process for high value utilization of high-alumina fly ash: valuable metals recovery and mesoporous silica preparation.

Extraction of valuable metals besides silica from high-alumina fly ash is one of the most important high-value utilization pathways. However, it is difficult to realize high-efficiency extraction due to the stable structure of quartz and mullite. In this paper, mineral phase transformation for valuable metal recovery and mesoporous silica preparation from fly ash by a selective acid leaching method was proposed.

Efficacy, safety, and economy of shensongyangxin capsules for the treatment of coronary heart disease arrhythmia: a meta-analysis of randomized controlled trials.

Background: Shensong Yangxin Capsules (SSYX) is a proprietary Chinese medicine commonly, used in the treatment of arrhythmia. In recent years, a flurry of randomized controlled trials of SSYX was reported in the treatment of Coronary heart disease arrhythmia in China. However, these experiments have not been systematically evaluated by economics.

Zinc-bearing dust derived non-toxic mixed iron oxides as magnetically recyclable photo-Fenton catalyst for degradation of dye.

In this paper, comprehensive utilization of hazardous zinc-bearing dust for preparation of non-toxic mixed iron oxides as a magnetically recyclable photo-Fenton catalyst for degradation of dye by a facile solid state reaction process was proposed. The as-prepared samples were characterized by X-ray diffraction (XRD), Raman spectra, ultraviolet and visible (UV-Vis) spectra and Physical Property Measurement System (PPMS), and the degradation performance of as-prepared catalysts was also tested and analyzed. The results show that spinel ferrite coexisting with or without FeO was the predominant phase in the as-prepared samples, which were confirmed by Raman analysis.