potassium feldspar energy

K2CO3-Modified Potassium Feldspar for CO2 Capture

2019-5-25 · Potassium-based solid sorbents are confirmed as promising means for this purpose. To dispose of the substantive flue gas, the CO 2 capture process should be cost-effective. In this work, a novel K 2 CO 3 /PF sorbent was prepared by impregnation of potassium carbonate (K 2 CO 3) on potassium feldspar (PF). The synthesized sample was characterized by X-ray fluorescence (XRF),

Read More
The hydrothermal alkaline alteration of potassium

Potassium feldspars (KAlSi 3 O 8) are ubiquitous minerals in the Earth's upper crust. This family of minerals has been the subject of numerous experimental and theoretical investigations concerning their dissolution kinetics and the mechanisms controlling chemical alteration at acid and neutral pH, and at temperatures ranging from ambient to hydrothermal conditions.

Read More
Recovery of Potassium from K-Feldspar by Thermal

2016-11-27 · The thermal decomposition mechanism of K-feldspar with industrial waste of FGD gypsum to produce soluble potassium (K) salt was investigated. Effects of the reaction temperature and the amount of reagents used on the recovery of K were studied.

Read More
Recovery of Potassium from K-Feldspar by Thermal

2019-5-25 · The thermal decomposition mechanism of K-feldspar with industrial waste of FGD gypsum to produce soluble potassium (K) salt was investigated. Effects of the reaction temperature and the amount of reagents used on the recovery of K were studied.

Read More
Extraction of potassium from K-feldspar via the CaCl2

2015-9-1 · The effect of the mass ratio of CaCl 2 /K-feldspar ore on the extraction of potassium was investigated under a dry nitrogen atmosphere at 900 °C, with a particle size of K-feldspar ore of 50–75 μm and a calcination time of 40 min. According to the potassium content in the K-feldspar ore and Eq.

Read More
Hydrothermal decomposition of potassium feldspar

2015-10-14 · Potassium feldspar (K-feldspar) is important for keeping ecological balance on Earth. For example, the weathering of K-feldspar generates dissolved elemental K, a necessary nutrient in soil. Recently, important developments on K-rich feldspar as an

Read More
Extraction of potassium from K-feldspar via the CaCl 2

2014-11-14 · As much as approximately 41% of the potassium was volatilized in 40 min at 1100 ℃. The mass ratio of CaCl 2 / K-feldspar ore significantly affected the extraction. At a mass ratio of 1.15 and 900 ℃, the potassium extraction reached 91% in 40 min, while the

Read More
赵传文 教授-首页_南师大能源与机械工程学院 Nanjing

2020-12-12 · K2CO3-modified potassium feldspar for CO2 capture from post-combustion flue gas. Energy & Fuels, 2015, 29: 8151-8156. (TOP, 影响因子3.0) 14)Zhao Chuanwen, Chen Xiaoping, Zhao Changsui. K2CO3/Al2O3 for capturing CO2 in flue gas from power plant Part

Read More
Recovery of Potassium from K-Feldspar by Thermal

2016-11-27 · The results showed that increasing the reaction temperature and mass ratio of CaCO3/KAlSi3O8 and CaSO4/KAlSi3O8 was beneficial to the decomposition of K-feldspar. The recovery ratio of K was higher than 90% with the mass ratio of KAlSi3O8:CaSO4:CaCO3 = 1:1:3 at 1373 K for 40 min, and the product K2SO4 with a purity of 91.3% was obtained.

Read More
Effects of Potassium Feldspar on Slagging and Fluxing

Until now, only the Gibbs free energy and temperature of potassium feldspar-CaO as fluxing agents in place of silica-CaO have been investigated via thermodynamic analysis [13, 31]. Scholars have

Read More
Study of modified potassium feldspar as a novel β

2020-3-23 · As is known, as aluminosilicate mineral, the potassium feldspar (PF) which contains metal cations such as K +, Na + and Al 3+ is rich in natural resources and cheap in price, it can be added to PP as a filler to reduce the cost.

Read More
Hydrothermal decomposition of potassium feldspar

2015-10-14 · Potassium feldspar (K-feldspar) is important for keeping ecological balance on Earth. For example, the weathering of K-feldspar generates dissolved elemental K, a necessary nutrient in soil. Recently, important developments on K-rich feldspar as an

Read More
Extraction of potassium from K-feldspar via the CaCl 2

2014-11-14 · As much as approximately 41% of the potassium was volatilized in 40 min at 1100 ℃. The mass ratio of CaCl 2 / K-feldspar ore significantly affected the extraction. At a mass ratio of 1.15 and 900 ℃, the potassium extraction reached 91% in 40 min, while the

Read More
(PDF) Sustainable Process for the Extraction of

Feldspar is an aluminosilicate mineral that bears potassium in the interstitial sites. To unlock the potassium from the interstitial sites, it was roasted with calcium chloride prepared by mixing...

Read More
Optical excitation of trapped charges in quartz,

1994-10-1 · The spectrum for the potassium feldspar as well as the spectra for the mixed silicates (Fig. 3(b)) show a composite nature with two steep sections separated by an intermediate range between 2.0 and 2.35 eV where an increase in photon energy has a smaller effect on I This could indicate that at low photon energies electrons from one trap are being evicted, while at photon energies above 2.35 eV

Read More
Sustainable Process for the Extraction of Potassium from

2020-6-30 · calcium chloride. Feldspar is an aluminosilicate mineral that bears potassium in the interstitial sites. To unlock the potassium from the interstitial sites, it was roasted with calcium chloride prepared by mixing eggshell and hydrochloric acid. At the roasting temperature, CaCl 2 melts and penetrates into the aluminosilicate matrix to replace K with Ca.

Read More
赵传文_百度百科

Guo, Yafei,Li, Changhai,Lu, Shouxiang,Zhao, Chuanwen,K 2 CO 3-Modified Potassium Feldspar for CO 2 Capture from Post-combustion Flue Gas,Energy & Fuels,2015,29(12):8151-8156。 Zhao, Chuanwen ,Chen, Xiaoping,Zhao, Changsui,K 2 CO 3 /Al 2 O 3 for Capturing CO 2 in Flue Gas from Power Plants.

Read More
郭亚飞 讲师-首页_南师大能源与机械工程学院 Nanjing

2020-12-12 · (Selected as Key Scientific Article by Renewable Energy Global Innovations) [10] Guo YF, Li CH, Lu SX, Zhao CW. K2CO3-Modified Potassium Feldspar for

Read More

Copyright © 2020.Company name All rights reserved.SiteMap