Preparation of animal glue binder treated by anhydrous sodium carbonate

2018 ◽  
Vol 32 (15) ◽  
pp. 1658-1669 ◽  
Author(s):  
Tian-Shu Wang ◽  
Wei-Hua Liu ◽  
Ying-Min Li
Keyword(s):  
Sodium Carbonate ◽  
Animal Glue ◽  
Anhydrous Sodium Carbonate

scholarly journals Sodium carbonate revisited

2003 ◽  
Vol 59 (3) ◽  
pp. 337-352 ◽  
Author(s):  
Michal Dusek ◽  
Gervais Chapuis ◽  
Mathias Meyer ◽  
Vaclav Petricek
Keyword(s):  
Sodium Carbonate ◽  
Harmonic Approximation ◽  
Temperature Phase ◽  
X Ray Diffraction ◽  
Anhydrous Sodium Carbonate ◽  
First Order ◽  
Commensurate Phase ◽  
Na Ions ◽  
Fifth Order ◽  
First Time

We present the structure of anhydrous sodium carbonate at room temperature (phase γ) and 110 K (phase δ) based on single-crystal X-ray diffraction data. The incommensurate phase γ was determined almost 30 years ago in the harmonic approximation using one modulation wave and first-order satellites. In our work we use satellites up to fifth order and additional harmonic waves to model the anharmonic features of the structure. The commensurate phase δ is presented for the first time. Using the superspace approach, both phases are compared in order to find common trends in the whole range of the sodium carbonate phases. We present arguments supporting the hypothesis that the driving force of the phase transitions may originate in the unsaturated bonding potential of one of the Na ions.

Anhydrous sodium carbonate as an acidimetric standard

The Analyst ◽  
1961 ◽  
Vol 86 (1024) ◽  
pp. 464 ◽  
Author(s):  
S. J. Cox ◽  
W. C. Johnson ◽  
E. J. Newman ◽  
J. T. Yardley
Keyword(s):  
Sodium Carbonate ◽  
Anhydrous Sodium Carbonate

Preparation of Novel Terbium Complexes Using Anhydrous Sodium Carbonate as Base and Nanometer Core

2015 ◽  
Vol 36 (7) ◽  
pp. 782-787
Author(s):  
金 凤 JIN Feng ◽  
张文军 ZHANG Wen-jun ◽  
陶栋梁 TAO Dong-liang ◽  
蒋雪月 JIANG Xue-yue ◽  
张 宏 ZHANG Hong ◽  
...  
Keyword(s):  
Sodium Carbonate ◽  
Anhydrous Sodium Carbonate ◽  
Terbium Complexes

Study on Direct Reduction of Vanadium Slag

2015 ◽  
Vol 815 ◽  
pp. 254-262
Author(s):  
Neng Wei Wang ◽  
Guo Wei Li ◽  
Min Xian Fang
Keyword(s):  
Sodium Carbonate ◽  
Direct Reduction ◽  
Process Condition ◽  
Optimum Process ◽  
Process Conditions ◽  
Vanadium Slag ◽  
Anhydrous Sodium Carbonate ◽  
Factors Affecting ◽  
Roasting Temperature ◽  
Slag Reduction

In this paper the process of direct reduction of vanadium slag was adopted. The main factor was determined by uniform experimental design and single factor analysis, and then the optimum process condition was drawn by the test. The test results showed that the regression equation curve fitting of the experiment data was very significant, the main factors affecting the vanadium slag reduction (according to the primary and secondary order) was the content of anhydrous sodium carbonate, roasting temperature, roasting time and reduction of carbon content. The factors for the reduction of the optimum process conditions are the carbon coefficient 1.04, roasting temperature 1100°C, roasting reduction time 4h, 4% mass percent of anhydrous sodium carbonate and slag. Under the optimum conditions, the actual rate of weight loss and theory rate of weight were close to 0, the results could be reproduced, and the vanadium slag metallization rate was 75%~83%.

Technical Process of Silk Degumming and Sericin Extracting

2011 ◽  
Vol 332-334 ◽  
pp. 1844-1847
Author(s):  
Hua E Wang ◽  
You Liang Guo
Keyword(s):  
Experimental Design ◽  
Sodium Carbonate ◽  
Recovery Rate ◽  
Ph Value ◽  
Heating Time ◽  
Orthogonal Experimental Design ◽  
Freezing Time ◽  
Technical Process ◽  
Anhydrous Sodium Carbonate ◽  
Technical Parameters

For protecting the environment, reducing pollution and saving energy, the technical process of silk degumming and sericin extracting was investigated in this paper. Boiling degumming and icing extracting mathod were adopted in the experiments. The optimal technological conditions of raw silk degumming and sericin extracting were obtained by using the orthogonal experimental design. The experimental results showed that the optimal technical parameters of silk degumming were the concentration of anhydrous sodium carbonate 2%, heating time 60min, bath ratio 1:30, as well as, for sericin extracting, they were pH value 7, temperature -24°C, freezing time 12h. On these conditions, the degumming loss percentage and the recovery rate were 26.1% and 75.5% respectively.

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