Research on Model of Solid-Solid Reaction and Experiment

2012 ◽  
Vol 236-237 ◽  
pp. 751-754
Author(s):  
Ding Guo Zhao ◽  
Shu Huan Wang ◽  
Xiao Jie Cui ◽  
He Jun Zhang

In the paper, the reaction of solid-solid model was researched and we confirmed the reaction equation. The experiments in the lab shown that the t1/2 is 11.8min in the ferrosilicon reduction boron anhydride reaction at low temperature. The yield of boron is higher by direct reduction method smelting. In the boron oxide reducing experiment, the yield minimum is 76%, the maximum is 82%, and the average value is about 79%, which provides favorable foundation conditions for smelting amorphous mother alloy.

2012 ◽  
Vol 512-515 ◽  
pp. 2372-2375 ◽  
Author(s):  
Ding Guo Zhao ◽  
Shu Huan Wang ◽  
Xiao Jie Cui ◽  
Jian Long Guo

The reducing process of boron-containing slag at low temperature is an important stage of the direct alloying for smelting boron steel. At low temperature boron slag generates mainly solid - solid reaction in the sintering period. The experiments were done on the carbon tube furnace in laboratory, and the effect of slag reaction in different times at 1200°C was researched. The samples were analyzed by XRD after the reaction. The experimental results shown that the reduction rate increased by increasing reducing time. The chemical reducing reaction of boron oxide by ferrosilicon is second-order reaction at solid state.


2015 ◽  
Vol 0 (0) ◽  
Author(s):  
Aycin Kaplan ◽  
Azmi Seyhun Kipcak ◽  
Fatma Tugce Senberber ◽  
Emek Moroydor Derun ◽  
Sabriye Piskin

AbstractIn the present study, magnesium borate synthesis was performed by a hydrothermal mixing method, with the use of magnesium waste scraps (W) as the magnesium source, along with boric acid (H) or boron oxide (B) as the boron source. For an environment-friendly approach, a solid waste of magnesium was used at low reaction temperatures. Results of X-ray diffraction analyses showed that admontite [MgO(B


2015 ◽  
Vol 277 ◽  
pp. 139-146 ◽  
Author(s):  
ShuangYuan Tan ◽  
Lei Wang ◽  
Liang Bian ◽  
JinBao Xu ◽  
Wei Ren ◽  
...  

Author(s):  
I Setiawan ◽  
E Febrina ◽  
A B Prasetyo ◽  
R Subagja ◽  
F Firdiyono

1985 ◽  
Vol 104 (2) ◽  
pp. 345-348 ◽  
Author(s):  
S. S. Dhillon ◽  
S. Larsson

SummaryBrassica oil seeds grown in India are occasionally damaged by frost, causing severe losses. A technique was developed to screen germplasm at the seedling stage. Twentyfour lines of B. campestris, B. juncea and B. napus were grown in plastic boxes in a glasshouse in a mixture of peat and sand. The seedlings were frozen after hardening for 2 days at 1 °C. Observations were recorded after 4 days, using a five-point scale. Frost tolerance index (FI) is calculated as the average value for injured plants for each line. Eight lines for each of the three species were tested. B. campestrisas a group showed better frost tolerance. Some lines of Indian mustard also showed good tolerance of low temperature (– 5·5 °C). These findings show good agreement with observations recorded in the literature. The method is detailed and discussed. Suggestions for future programmes are made.


2015 ◽  
Vol 17 (33) ◽  
pp. 21243-21253 ◽  
Author(s):  
Fwu-Long Mi ◽  
Shao-Jung Wu ◽  
Wen-Qi Zhong ◽  
Cheng-Yu Huang

A dual-functional sensor based on silver nanoparticles was synthesized by a two-stage procedure consisting of a low-temperature chitosan–Ag+ complexation followed by a high-temperature reduction of the complex to form chitosan-capped silver nanoparticles (CS-capped Ag NPs).


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