scholarly journals Microwave radiation-induced grafting of 2-methacryloyloxyethyl trimethyl ammonium chloride onto lentil extract (LE-g-DMC) as an emerging high-performance plant-based grafted coagulant

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Siong Chin Chua ◽  
Fai Kait Chong ◽  
Muhammad Raza Ul Mustafa ◽  
Shamsul Rahman Mohamed Kutty ◽  
Wawan Sujarwo ◽  
...  
2013 ◽  
Vol 92 (1) ◽  
pp. 388-393 ◽  
Author(s):  
Xiaohua Lv ◽  
Weiqiang Song ◽  
Yongzhou Ti ◽  
Lingbo Qu ◽  
Zhiwei Zhao ◽  
...  

2012 ◽  
Vol 441 ◽  
pp. 573-577
Author(s):  
Lei Wang ◽  
Lan Wang ◽  
Jun Xiong Lin ◽  
Duan Ni

Chitosan was modified by 2,3-epoxypropyl trimethyl ammonium chloride (ETA) to prepare 2-hydroxypropyltrimethyl ammonium chloride chitosan (HACC) with good water-solubility. The optimum process of modification was studied. Then the HACC was used as coagulant to treat silk degumming wastewater and recycle sericin. The result showed that the HACC with over 90% degree of substitution had high performance for treating the wastewater, which could be prepared by controlling the reaction temperature at 70°C, molar ratio of ETA to chitosan at 3:1, reaction time for 8 hours and pH at 8. When it was used to treat the degumming wastewater, the optimum treating process was 8 for pH value and 1 g/L of coagulant.


2021 ◽  
Vol 182 ◽  
pp. 109362
Author(s):  
Haruna Kolawole Afolabi ◽  
Mohamed Mahmoud Nasef ◽  
Nik Abdul Hadi Sapiaa ◽  
Noorfidza Yub Harun ◽  
Teo Ming Ting ◽  
...  

Crystals ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 449
Author(s):  
Shuai Yu ◽  
Hui Chen ◽  
Xujie Gao ◽  
Weichun Feng ◽  
Wenguo Xing ◽  
...  

Reaction crystallization to produce glycidyl trimethyl ammonium chloride (GTA) via epichlorohydrin with gas-state trimethylamine was investigated. The crystallization process of the GTA gas-liquid reaction was optimized by a seed method. The optimized technology can prepare GTA products with crystal form and purity greater than 97%. The crystallization process of GTA consists of four steps (i.e., addition of seed, dispersion of seed, growth of crystals on the seed surfaces, agglomeration and growth of crystal). Seed method and flow rate are the key factors affecting purity. The purity and particle size of GTA crystals were satisfactory as long as the operation was kept within the defined envelope. The experiments were conducted on a 1 L reactor and successfully scaled-up to 3000 L in industry.


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