The Production of Protein Foaming Agent from Baijiu Vinasse

2013 ◽  
Vol 448-453 ◽  
pp. 688-692
Author(s):  
Mei Yan Zhang ◽  
Hua Zhao ◽  
Qian Zhang
Keyword(s):  
Reaction Time ◽  
Protein Content ◽  
Reaction Temperature ◽  
Protein Extraction ◽  
Foam Stability ◽  
Protein Source ◽  
Optimal Conditions ◽  
Foaming Agent ◽  
Foam Properties ◽  
Hydrolysis Conditions

Baijiu vinasse was used as the protein source to produce protein foaming agent. The hydrolysis conditions were optimized. The results show that the optimal conditions are: for every 20 g of baijiu vinasse, 1 g CaO and 80 mL water are add, the reaction temperature is 80°C and reaction time is 2 h. Hydrolyzed twice under the optimal conditions, the protein extraction rate can reach 30.5%. After the hydrolyzation, supernatant was collected, neutralized and condensed to 3% protein content as protein foaming agent. Foam properties were determined by Ross-Miles meter. The foamability is 172 mm, and foam stability is 160 mm, which shows huge potential for application.

Research of Preparation Factors on Magnetic Cassava Starch Microspheres

2013 ◽  
Vol 634-638 ◽  
pp. 1513-1517
Author(s):  
Ping Lan ◽  
Yu Xian Feng ◽  
A Ming Chen ◽  
Lei Lei Qiao ◽  
Li Hong Lan ◽  
...  
Keyword(s):  
Reaction Time ◽  
Reaction Temperature ◽  
Influence Factors ◽  
Cassava Starch ◽  
Raw Material ◽  
Speed Ratio ◽  
Optimal Conditions

Magnetic cassava starch microspheres have been prepared by means of the method of precipitation magnetization, cassava starch as raw material adsorbing or embedding Fe3O4, many influence factors on magnetic cassava starch iron rate such as pH, reaction time, stirring speed, ratio of Fe+3 to Fe+2, reaction temperature also investigated in this paper. On the base above research, we preliminary got the optimal conditions on the synthesis of magnetic cassava starch microspheres.

Study on Synthesis of Nitrophenyl Isocyanates Using Triphosgene

2012 ◽  
Vol 550-553 ◽  
pp. 1039-1042 ◽  
Author(s):  
Gui Rong Cao ◽  
Xue Yan Zhao ◽  
Rui Jie Xiao
Keyword(s):  
Reaction Time ◽  
Reaction Temperature ◽  
Molar Ratio ◽  
Optimal Conditions ◽  
Optimum Reaction

In this paper, triphosgene respectively reacting with o-nitrophenyl aniline, m-nitrophenyl aniline and p-nitrophenyl aniline to synthesize corresponding isocyanates. The effects of reactants molar ratio, reaction time and reaction temperature on the yield were investigated. As a result, using 1,2-dichloroethane as reaction solvent, the optimum molar ratio of the three kinds of nitroaniline and triphosgene were all 2.5:1, the optimum reaction time of synthesis of o-nitrophenyl isocyanate, m-nitrophenyl isocyanate and p-nitrophenyl isocyanate respectively was 6h, 5.5h and 5h; the optimum reaction temperature of synthesis of the three kinds of nitrophenyl isocyanates were all 75°C. Under the optimal conditions, the yield of o-nitrophenyl isocyanate, m-nitrophenyl isocyanate and p-nitrophenyl isocyanate could respectively be 80.3%, 83.7% and 83.5%. The products were characterized by meltingtest, ebulliometry, IR, and HPLC

Synthesis of Diethyl Carbonate from Ethyl Carbamate and Ethanol with Acid as Catalyst

2013 ◽  
Vol 821-822 ◽  
pp. 1081-1084 ◽  
Author(s):  
Xian Ye Qin ◽  
Biao Liu ◽  
Bing Han ◽  
Wen Bo Zhao ◽  
Shui Sheng Wu ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Reaction Time ◽  
Reaction Temperature ◽  
Ethyl Carbamate ◽  
Diethyl Carbonate ◽  
Bronsted Acid ◽  
Optimal Conditions ◽  
Reaction Conditions ◽  
Brönsted Acid ◽  
Pyrophosphoric Acid

The catalytic activity of many Lewis and Bronsted acid for the synthesis of diethyl carbonate (DEC) from ethyl carbamate (EC) and ethanol was evaluated in a bath reactor. Pyrophosphoric acid (H4P7O2) which showed the best activity was selected to further investigate the effect of reaction conditions, such as reaction temperature, catalyst dose and reaction time, on the yield of DEC. Under the optimal conditions, DEC yield can reach 29.1%.

Preparating Arsenic Trioxide with Sulfuric Acid Wet Oxidation

2013 ◽  
Vol 662 ◽  
pp. 437-440
Author(s):  
Lin Zhuan Ma ◽  
Jun Ming Guo ◽  
Qiong Fang Cui ◽  
Man Hong Liu ◽  
Ying Jie Zhang
Keyword(s):  
Particle Size ◽  
Sulfuric Acid ◽  
Reaction Time ◽  
Arsenic Trioxide ◽  
Reaction Temperature ◽  
Extraction Yield ◽  
Wet Oxidation ◽  
Optimal Conditions ◽  
Concentrated Sulfuric Acid

The technology of the acidification is adopted to prepare arsenic trioxide (As2O3). With a concentration of 98% of concentrated sulfuric acid and Orpiment made into a certain ratio of the slurry suspension. Arsenic trioxide’s content is 99.94%, extraction yield can reach to 98.92%. The optimal conditions is reaction temperature at 120°Cand the reaction time in 2.5 h; the slurry ratio is less than 1/6 and particle size is less than 0.080 mm.

Study on the Critical Control of Foam Insulation Materials Produced by Waste TFT-LCD Glass

2014 ◽  
Vol 668-669 ◽  
pp. 74-78 ◽  
Author(s):  
Ling Ling She ◽  
Yu Wen Guo ◽  
Jiu Li Ruan ◽  
Qi Qiao ◽  
Shi Bing Sun
Keyword(s):  
Reaction Time ◽  
Melting Temperature ◽  
Oxygen Supply ◽  
Sintering Temperature ◽  
Foam Glass ◽  
Waste Glass ◽  
Optimal Conditions ◽  
Foaming Agent ◽  
Insulation Materials

The present work studied the critical control of foam insulation materials produced by waste TFT-LCD glass. The result showed that foam glass was affected by sintering temperature, as well as other factors such as foaming agent, oxygen supply agent and reaction time. The ordinary waste glass was used to drop the melting temperature of Waste TFT-LCD glass. The density of foam glass had a down-up trend with the increase of sintering temperature. The increase of ratio of foaming agent and oxygen supply agent led to a notable decrease of the density, while the change of reaction time exerted an unobvious influence on the density. The density of foam glass produced under the optimal conditions was 0.2211 g/cm3.

Ultrasonic-Assisted Preparation, Characterization and Antibacterial Activity of β-Chitosan from Squid Pens

2011 ◽  
Vol 236-238 ◽  
pp. 282-287 ◽  
Author(s):  
Jun Huang ◽  
Jian Wei Mao ◽  
Sheng Hu ◽  
Dong Ke Zhao ◽  
Le He Mei ◽  
...  
Keyword(s):  
Antibacterial Activity ◽  
Reaction Time ◽  
Reaction Temperature ◽  
Antibacterial Activities ◽  
Optimal Conditions ◽  
Deacetylation Degree ◽  
Orthogonal Experiments ◽  
Escherchia Coli ◽  
Ultrasonic Assisted ◽  
Mic Minimum Inhibitory Concentration

β-chitosan preparation from squid pens was carried out using aqueous NaOH with the ultrasonic assistance. Single factor experiments and L9(34) orthogonal experiments were used to investigate the effect of three parameters (reaction time, concentration of NaOH and reaction temperature) on deacetylation of β-chitin. The optimal conditions for deacetylation of chitin were reaction temperature 80°C, reaction time 2 h and concentration of NaOH 50%. The optimal conditions allowed deacetylation degree of β-chitin from 71.32% to 92.91%. The β-chitosan from squid pens was confirmed by Fourier transform infrared spectroscopy. The antibacterial activities of the prepared β-chitosans againstaphylococcus aureus(S. aureus) andEscherchia coli(E.coli) were then determined and compared by the MIC (minimum inhibitory concentration). Results indicate that β-chitosans with different degrees of deacetylation (DD) possess different antibacterial activity. The growth ofS. aureuscan be easily inhibited by prepared β-chitosan thanE.coli.

Preparation of Ultrafine Al(OH)3 Powders from Scrap Aluminum

2013 ◽  
Vol 544 ◽  
pp. 13-16
Author(s):  
Jing Xu
Keyword(s):  
Reaction Time ◽  
Sulphuric Acid ◽  
Reaction Temperature ◽  
Raw Material ◽  
Homogeneous Precipitation ◽  
Preparation Process ◽  
Optimal Conditions ◽  
Ultrafine Powders ◽  
Infrared Spectrometer ◽  
Scrap Aluminum

The homogeneous precipitation pathway was explored to synthesize ultrafine powders of Al(OH)3. In the experiment, the scrap aluminum were used as raw material . The effects of reaction time, reaction temperature, stirring speed, concentration of sulphuric acid and dispersant on the preparation process were investigated. The results showed that ultrafine Al(OH)3 powders can be yielded and well-controlled under the following optimal conditions: the concentration of sulphuric acid 3.0 mol•L-1, reaction temperature 0-4 °C, stirring speed 900 r.min-1 and reaction time 15 min. The diameter less than 100nm of sphericity Al(OH)3 particles with the narrow distribution were successfully obtained. The Al(OH)3 powders was analyzed with scanning electron microscopy , infrared spectrometer. The Al(OH)3 powders have good dispersancy and purity is more than 90%. The operation of the experiment was very simple, and the particles were separated easily.

Removal of Thiophene from Simulated Oil by Catalytic Oxidation Using K2FeO4/ V2O5

2011 ◽  
Vol 183-185 ◽  
pp. 1568-1572
Author(s):  
Yan Xiu Liu ◽  
Hua Song
Keyword(s):  
Reaction Time ◽  
Catalytic Oxidation ◽  
Sulfur Content ◽  
Reaction Temperature ◽  
Temperature Reaction ◽  
Optimal Conditions ◽  
Catalyst Amount ◽  
Deep Desulfurization

Oxidation extraction of thiophene from simulated oil by using K2FeO4as oxidant and methanol as extractant has been investigated. The effects of different catalyst, oxidant amount, catalyst amount, reaction temperature, reaction time, and extraction conditions were studied. This process is capable of decreasing the sulfur content of simulated oil from 100 mg•L-1to 17.8 mg•L-1at the optimal conditions. The results indicate that such a process could be an alternative to common hydrodesulfurization for deep desulfurization.

Synthesis of Di(Chloroethyl) Phosphite

2013 ◽  
Vol 734-737 ◽  
pp. 2532-2535
Author(s):  
Hong Ying Chu ◽  
Zhi Ran Chen
Keyword(s):  
Reaction Time ◽  
Reaction Temperature ◽  
Phosphorus Trichloride ◽  
Temperature Reaction ◽  
Optimal Conditions ◽  
Orthogonal Method ◽  
Ft Ir

Organic intermediate di (chloroethyl) phosphite was synthesized in this work. The influence of reaction temperature, reaction time and solvent on the yield of product was investigated with orthogonal method. The experiment results show that the optimal conditions were molar ration of 2-chloroethannol / phosphorus trichloride 4.0:1, reaction temperature 65~75 °C, reaction time 4h, solvent 60 mL, and the yield of the product reached 89.5%. The asprepared di (chloroethyl) phosphite samples were further characterized by FT-IR and NMR.

scholarly journals SYNTHESIS AND CHARACTERIZATION OF LAURYL METHACRYLATE – GRAFT - POLYPROPYLENE FIBER

2018 ◽  
Vol 54 (1A) ◽  
pp. 245
Author(s):  
Hoang Thu Ha
Keyword(s):  
Reaction Time ◽  
Reaction Temperature ◽  
Graft Polymerization ◽  
Polypropylene Fiber ◽  
Monomer Concentration ◽  
Synthesis And Characterization ◽  
Optimal Conditions ◽  
Graft Yield ◽  
Scanning Electron

The graft polymerization of lauryl methacrylate (LMA) onto polypropylene fiber (PP) was investigated by using 2,2’-azobisisobutyronitrile (AIBN) as initiator. The grafting was influenced by AIBN concentration, monomer concentration, the reaction time and reaction temperature. On the basis of a detailed investigation of these factor, the optimal conditions for the grafting of LMA onto PP with the said initiator were as follows: [AIBN] = 0.015 mol/l, [LMA] = 1.25 mol/l, reaction time 240 min, reaction temperature 80 oC, in which the graft yield (%GY) of 15.7 % was obtained. Characterization of the polypropylene fiber-graft-lauryl methacrylate was done by Fourier transform infrared spectroscopy (FTIR) and scanning electron microscopy (SEM).

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