This paper shows some generalities about the glycerin byproduct obtained from biodiesel production process, presents an analysis of the ternary equilibrium between methanol, water and glycerol, and shows the influence...This paper shows some generalities about the glycerin byproduct obtained from biodiesel production process, presents an analysis of the ternary equilibrium between methanol, water and glycerol, and shows the influence that temperature has on the balance. This phase diagram illustrates ternary equilibrium at 10, 20 and 50 ℃, keeping the pressure constant at 1 atm （atmosphere） to standardize the analysis. The purpose of it is to establish the best temperature for the purification of glycerol by liquid-liquid extraction method under the ＂extraction in several stages cross flow＂ taking an initial mixture of glycerol with composition 15 wt.% water, 25 wt.% methanol and 60 wt.% glycerol. Water was used as liquid-liquid extraction solvent in order to remove as much methanol as possible from the initial solution due to the existence of a zone of insolubility between the glycerol and water in the ternary equilibrium. By this reason, two solutions are obtained, one consisting of water and methanol containing a trace of glycerin and the other consisting of water, glycerine and traces of methanol, which contain only 4.62% of the total methanol which enter in the process of liquid-liquid extraction, with 60.62% of the total glycerol, which is sent to a fractional distillation process to purify glycerin up to 98% by weight.展开更多
Objective: To observe the effect of acupuncture on simple obesity and cellular hemorheology. Methods: Thirty-two cases of simple obesity patients were enrolled into this study. Acupoints of the Stomach Meridian and Sp...Objective: To observe the effect of acupuncture on simple obesity and cellular hemorheology. Methods: Thirty-two cases of simple obesity patients were enrolled into this study. Acupoints of the Stomach Meridian and Spleen Meridian as Zhongwan (中脘 CV 12), Liangmen (梁门 ST 21), Tianshu (天枢 ST 25), Guayuan (关元 CV 4), etc. were punctured, once daily in the first 5 days, and once every other day afterwards, with 10 sessions being a therapeutic course. Before treatment and after 3 courses of treatment, the body weight, waistline, weight index, seam cholesterol (CH), triglyceride and aggregation index of red blood cell (RBC) were detected. Results: After acupuncture treatment, all the indexes of body weight, waistline, weight index, serum CH, triglyceride and aggregation index of RBC decreased significantly in comparison with those of pre-treatment(P< 0.05). Conclusion: Acupuncture can apparently improve cellular hemorheology, reduce body weight, serum cholesterol and TG levels in simple obesity patients.展开更多
文摘This paper shows some generalities about the glycerin byproduct obtained from biodiesel production process, presents an analysis of the ternary equilibrium between methanol, water and glycerol, and shows the influence that temperature has on the balance. This phase diagram illustrates ternary equilibrium at 10, 20 and 50 ℃, keeping the pressure constant at 1 atm （atmosphere） to standardize the analysis. The purpose of it is to establish the best temperature for the purification of glycerol by liquid-liquid extraction method under the ＂extraction in several stages cross flow＂ taking an initial mixture of glycerol with composition 15 wt.% water, 25 wt.% methanol and 60 wt.% glycerol. Water was used as liquid-liquid extraction solvent in order to remove as much methanol as possible from the initial solution due to the existence of a zone of insolubility between the glycerol and water in the ternary equilibrium. By this reason, two solutions are obtained, one consisting of water and methanol containing a trace of glycerin and the other consisting of water, glycerine and traces of methanol, which contain only 4.62% of the total methanol which enter in the process of liquid-liquid extraction, with 60.62% of the total glycerol, which is sent to a fractional distillation process to purify glycerin up to 98% by weight.
文摘Objective: To observe the effect of acupuncture on simple obesity and cellular hemorheology. Methods: Thirty-two cases of simple obesity patients were enrolled into this study. Acupoints of the Stomach Meridian and Spleen Meridian as Zhongwan (中脘 CV 12), Liangmen (梁门 ST 21), Tianshu (天枢 ST 25), Guayuan (关元 CV 4), etc. were punctured, once daily in the first 5 days, and once every other day afterwards, with 10 sessions being a therapeutic course. Before treatment and after 3 courses of treatment, the body weight, waistline, weight index, seam cholesterol (CH), triglyceride and aggregation index of red blood cell (RBC) were detected. Results: After acupuncture treatment, all the indexes of body weight, waistline, weight index, serum CH, triglyceride and aggregation index of RBC decreased significantly in comparison with those of pre-treatment(P< 0.05). Conclusion: Acupuncture can apparently improve cellular hemorheology, reduce body weight, serum cholesterol and TG levels in simple obesity patients.
