A Record Ammonia Adsorption by Calcium Chloride Confined in Covalent Organic Frameworks

2022 ◽  
Author(s):  
Xiaoxin Tian ◽  
Jikuan Qiu ◽  
Zhen-Zhen Wang ◽  
Yongkui Chen ◽  
Zhiyong Li ◽  
...  
Keyword(s):  
Calcium Chloride ◽  
Raw Material ◽  
Covalent Organic Frameworks ◽  
Ammonia Adsorption

Ammonia is a vital chemical raw material, but it is also a highly toxic environmenal pollutant. However, its highly effecient uptake and reversible release is a challenge. Herein, we have...

Optimization of Goose Meat Composite Tender Agent by Response Surface Methodology

2011 ◽  
Vol 480-481 ◽  
pp. 1525-1529
Author(s):  
Hai Yan Gao ◽  
Ya Ping Xu ◽  
Han Jun Ma ◽  
Run Shu Pan ◽  
Bin Li
Keyword(s):  
Response Surface Methodology ◽  
Response Surface ◽  
Calcium Chloride ◽  
Economic Efficiency ◽  
Water Holding Capacity ◽  
Raw Material ◽  
Breast Meat ◽  
Water Holding

In this study, the goose meat was used as raw material and the formula of composite tender agent was optimized by Response Surface Methodology. Goose breast meat were soaked with exogenous protease of plants, phosphate and Ca2+ for 3 hours at 2 °C. The influence of different composite tender agent on the water-holding capacity was examined by statistical response surface methodology (RSM). The result showed that papain 6.16 U/g, compound phosphate 0.308 % and calcium chloride 0.133 % was helpful to increase the tenderization of goose breast. The results of our study would be used to improve the tenderness of goose meat and increase economic efficiency of goose industry.

Study on High Efficient Snow-Dissolving Agent with Coloration Function

2015 ◽  
Vol 737 ◽  
pp. 508-511
Author(s):  
Shuai Wang ◽  
Yang Yang ◽  
Ming Li ◽  
De Chen Shan ◽  
Mi Zhou
Keyword(s):  
Calcium Chloride ◽  
Color Change ◽  
Raw Materials ◽  
Experimental Results ◽  
Raw Material ◽  
Ice Melting ◽  
Snow Melting ◽  
High Efficient

In this study, a high-efficient snow-dissolving agent with coloration function was made, the main raw material was calcium chloride (CaCl2).The advantage of this agent was that we could control the spreading dosage according to the color change. The optimal proportion of the raw materials was obtained through experiment. The experimental results show: the ice melting amount of homemade snow-dissolving agent increased with time ; homemade snow-dissolving agent had the best effect on snow melting compared with CaCl2,NaCl and commercial snow-dissolving agent.

Study on the Preparation of Calcium Sulfate Whisker by Hydrothermal Method

2012 ◽  
Vol 602-604 ◽  
pp. 1369-1372 ◽  
Author(s):  
Kang Bi Luo ◽  
Hu Ping Li ◽  
Yan Xia Tan
Keyword(s):  
Hydrothermal Method ◽  
Calcium Chloride ◽  
Sodium Sulfate ◽  
Calcium Sulfate ◽  
Sulfate Solution ◽  
Solution Concentration ◽  
Raw Material ◽  
Molar Ratio ◽  
Feed Mode ◽  
Calcium Sulfate Whiskers

This article took the sodium sulfate and calcium chloride as the raw material and prepared calcium sulfate whiskers by hydrothermal method. The experimental results show that the calcium sulfate precursors are prepared by the reverse feed mode in which the sodium sulfate solution drop into the calcium chloride solution under the solution concentration 0.6 mol/L and the molar ratio of Na2SO4 to CaCl2 at 1:1.8. The precursors were placed in pH=6.12 hydrothermal environments and treated in the autoclave at 140 °C for 4 h to obtain the calcium sulfate whiskers having for the ratio of length to diameter at 97.5 and the better morphology.

scholarly journals Potential influence of compounds released in degradation of phytates on the course of alcoholic fermentation of high gravity mashes – simulation with analogs of these compounds

2017 ◽  
Vol 19 (3) ◽  
pp. 27-34 ◽  
Author(s):  
Dawid Mikulski ◽  
Aleksandra J. Rolbiecka ◽  
Grzegorz R. Kłosowski
Keyword(s):  
Calcium Chloride ◽  
Alcoholic Fermentation ◽  
Ethanol Concentration ◽  
Alternative Solution ◽  
Raw Material ◽  
High Gravity ◽  
Potential Influence ◽  
Volatile Products ◽  
Final Ethanol Concentration ◽  
Hydrolysis Of

Abstract Aim of the study was to evaluate the effect of supplementation of high gravity media with mineral compounds and myo-inositol, at concentration which would be obtained as a result of degradation of phytates present in raw material during alcoholic fermentation. The process of alcoholic fermentation was conducted under laboratory conditions in a 72 h system at 37°C with the use of S. cerevisiae D-2 strain. Calcium chloride proved to be the most effective of all supplements tested. Final ethanol concentration increased by 1.2% v v−1 and the yield of process increased by ca. 7 dm−3 ethanol 100 kg−1 of starch in comparison with control. Selective supplementation with KH2PO4, ZnSO4 and MgSO4 also increased the ethanol concentration, but the effect was accompanied by a deterioration in composition of volatile products. The hydrolysis of phytate complexes with microbial phytases can be an alternative solution to supplementation of HG mashes presented in this work.

scholarly journals Combination of mild heat and calcium chloride treatment on the texture and bioactive compounds of purple shallot

Food Research ◽  
2020 ◽  
Vol 4 (5) ◽  
pp. 1681-1687
Author(s):  
N.M. Thuy ◽  
N.T.M. Tuyen ◽  
N.V. Tai
Keyword(s):  
Water Temperature ◽  
Calcium Chloride ◽  
Bioactive Compounds ◽  
Chloride Concentration ◽  
Hot Water ◽  
Raw Material ◽  
Total Phenolic ◽  
Agricultural Crop ◽  
Mild Heat

Purple shallot (Allium ascalonicum L.) is one of the most tropical agricultural crop widely used as a food seasoning. It is a highly commercial and important commodity by the food industry, not only based on its economic value but also the bioactive compounds. Pretreatment is widely used before processing of agro-products to improve the quality of these products. In this study, the influences of the pretreatment were conducted by the combination of mild temperature ranging from 45 to 55°C and different concentrations of calcium chloride (from 0.25 to 0.75%) on the quality of raw purple shallot used for further study (e.g. freeze-drying and pickling). The samples were analyzed for the firmness, bioactive compounds (total phenolic, total flavonoid and quercetin content) and antioxidant activity. The results showed that mild water temperature and calcium chloride concentration were influent on the firmness and bioactive compounds of raw material. The addition of calcium can enhance the beneficial action of mild heat treatments on sensory properties of purple shallot. The optimal conditions of the process were stabilized with the desired function, obtained at 50°C of mild hot water temperature dipping and 0.64% of calcium chloride concentration.

Desulfurization Gypsum Whisker Preparation and Performance Study

2014 ◽  
Vol 711 ◽  
pp. 197-200
Author(s):  
Peng Fu ◽  
Guo Zhong Li
Keyword(s):  
Magnesium Sulfate ◽  
Calcium Chloride ◽  
Raw Material ◽  
Performance Study ◽  
Average Ratio ◽  
Maximum Value ◽  
And Performance

Using the desulfurization gypsum as raw material and the atmospheric acidification method, prepared desulfurization gypsum whisker, Studied water gypsum ratio, crystallization agent on properties of gypsum whiskers. Researchs show that, when the water gypsum ratio is 57.14%, the average ratio of length to diameter reaches the maximum value is 41.1; when using calcium chloride and Magnesium sulfate (the quality of various additives in the desulfurization gypsum quality accounted for 2%), the best effect, the ratio of length to diameter is 42.9.

scholarly journals Performance of Calcium Chloride- Ammonia Adsorption Refrigeration System

2021 ◽  
Vol 40 (1) ◽  
pp. 39-49
Author(s):  
Michael John ◽  
Cuthbert Kimambo ◽  
Ole Nydal ◽  
Joseph Kihedu
Keyword(s):  
Calcium Chloride ◽  
Laboratory Experiments ◽  
Coefficient Of Performance ◽  
Time Varying ◽  
Refrigeration System ◽  
Adsorption Refrigeration ◽  
Ammonia Adsorption ◽  
Desorption Time ◽  
Adsorption Temperature ◽  
Cold Chamber

An experimental study on the performance of calcium chloride-ammonia adsorption system is described. A single bed water cooled condenser adsorption refrigerator prototype, which utilises calcium chloride-ammonia pair has been developed and tested in the laboratory. Experiments have been conducted for desorption temperatures of 100 °C with desorption time varying from 1 to 4 hours. An electric tape heater and a timer were used to perform the experiments. The adsorption temperature profile, adsorption rate and prototype performance have been analysed and discussed. The tested heating and desorption temperature of 100 °C and heating and desorption time of 1 to 4 hours was able to create a cooling effect of the cold chamber of the prototype of between -0.8 to 8.3 °C, which is adequate for vaccine storage requirement of 2 to 8 °C. The estimated Coefficient of Performance of the system ranges between 0.025 and 0. 076.

Covalent organic frameworks: an ideal platform for designing ordered materials and advanced applications

2021 ◽  
Author(s):  
Ruoyang Liu ◽  
Ke Tian Tan ◽  
Yifan Gong ◽  
Yongzhi Chen ◽  
Zhuoer Li ◽  
...  
Keyword(s):  
Covalent Organic Frameworks ◽  
2D And 3D ◽  
Advanced Applications

Covalent organic frameworks offer a molecular platform for integrating organic units into periodically ordered yet extended 2D and 3D polymers to create topologically well-defined polygonal lattices and built-in discrete micropores and/or mesopores.

Mental representation of economic crisis in Italian and Swiss samples 1The authors would like to thank Maurizio Mistri for his help in the construction of items. This research was supported by a grant from the Italian Murst (ex 40%).

2001 ◽  
Vol 60 (1) ◽  
pp. 11-14 ◽  
Author(s):  
Lucia Savadori ◽  
Eraldo Nicotra ◽  
Rino Rumiati ◽  
Roberto Tamborini
Keyword(s):  
Economic Crisis ◽  
Mental Representation ◽  
Mental Representations ◽  
Social Contexts ◽  
Raw Material ◽  
National Context ◽  
Cluster Procedure ◽  
Total N ◽  
Two Samples ◽  
Important Symptom

The content and structure of mental representation of economic crises were studied and the flexibility of the structure in different social contexts was tested. Italian and Swiss samples (Total N = 98) were compared with respect to their judgments as to how a series of concrete examples of events representing abstract indicators were relevant symptoms of economic crisis. Mental representations were derived using a cluster procedure. Results showed that the relevance of the indicators varied as a function of national context. The growth of unemployment was judged to be by far the most important symptom of an economic crisis but the Swiss sample judged bankruptcies as more symptomatic than Italians who considered inflation, raw material prices and external accounts to be more relevant. A different clustering structure was found for the two samples: the locations of unemployment and gross domestic production indicators were the main differences in representations.

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