Search

Ferro-phosphorus is an important industrial alloy, which plays a pivotal role in steelmaking, chemical industry, new energy and construction industry. The development and utilization of ferro-phosphorus can not only bring economic benefits to enterprises, but also contribute to the development of national economy. In this paper, the experiment was carried out under the conditions of T=1200℃-1400℃, R(CaO/SiO2)=1.0, t=60 min and C=12%. Phosphate rock and copper slag were used as raw materials, graphite was used as reducing agent, and ferrophosphorus was produced by reduction and roasting in a high-temperature energy-saving tubular furnace. The reduced samples were separated and ground, XRD, SEM and EDS were used to characterize ferrophosphorus and slag. The results showed that the main phase of ferrophosphorus obtained is Fe3P at T1300℃. After reduction, it was measured that the main component of the slag was silicate, mainly calcium metasilicate (CaSiO3) and a small amount of aluminum silicate.

Objective: To explore the mechanism of acupuncture in treating obesity complicated with climacteric syndrome (OCCS)., Methods: Thirty female OCCS patients were treated by acupuncture, combination of body and auricular acupuncture, according to the treating principle based on syndrome differentiation. The changes in symptoms, signs, obesity index, Kupperman index, vegetative nerve system equilibrium index (Y value), levels of estradiol (E2), luteinizing hormone (LH), follicle stimulating hormone (FSH), gonadotropin releasing hormone (GnRH), leptin (LP), insulin (INS), nitric oxide (NO), nitric oxide synthase (NOS) and insulin activation index (IAI) in patients were observed., Results: The obesity index, Kupperman index, Y value, and levels of LH, FSH, GnRH, LP, and INS increased, while levels of E2, NO, NOS and IAI decreased in OCCS patients. After acupuncture treatment, in the same time of obtaining promising effect in reducing weight, reversing effect was shown in all the above-mentioned parameters (P < 0.05 or P < 0.01) ., Conclusion: Acupuncture has favorable regulatory effect on Kupperman index, Y value, E2, LH, FSH, GnRH, NO, NOS, LP, INS and IAI in OCCS patients, its effect in improving the hypothalamic-pituitary-gonad axis, vegetative nerve function and vasomotor dysfunction, and adjusting the resistance to leptin and insulin may be the important mechanisms.