Preparation of high quality Microgranulate CrO3 based on green process design

2017 ◽  
Vol 95 (7) ◽  
pp. 1261-1268
Author(s):  
Wenwen Cui ◽  
Ping Li ◽  
Yongan Chen ◽  
Chuang Liu ◽  
Hailin Zhang ◽  
...  
ChemSusChem ◽  
2021 ◽  
Author(s):  
Sebastian Püschel ◽  
Sven Störtte ◽  
Johanna Topphoff ◽  
Andreas J. Vorholt ◽  
Walter Leitner

1982 ◽  
Vol 9 (1) ◽  
pp. 46-51
Author(s):  
S. Kojima ◽  
T. Ohnishi ◽  
T. Saito ◽  
K. Oka

2013 ◽  
Vol 744 ◽  
pp. 283-287
Author(s):  
Lin Li ◽  
Fu Ming Zhang ◽  
Hong Wen Liu ◽  
Ruo Yu Zang ◽  
Fan Wang

Based on scale and output, process design assures high-end products for Baogang, ensures advancement and reliability of devices, enhances Chinese split supply ratio; ability to decrease investment and implement sustainable scientific outlook on development. To introduce production scale and product scheme in Baogang 2250mm hot rolling project, and illustrate design flow, process arrangement and equipment level. Ability to insist on a high starting point, reference to international standards, use advanced devices in order to meet high-quality needs and achieve strong competitiveness, adhere to strategy of sustainable development, improve on utilization efficiency of raw materials, energy and water, accomplish cyclic utilization. Leading products are high-quality rare-earth auto plates, steel sheets for home electrical appliances. The layout of plant is tightly linked with process design and whole plan, short process, smooth logistics, less middle stages and advanced automatic control system create international level in 21st century.


2017 ◽  
Vol 6 (3) ◽  
pp. 924-931
Author(s):  
Douglas Henrique Cardoso ◽  
Thiago Ferreira Da Conceição ◽  
Admir Jose Giachini ◽  
Marcio Jose Rossi

Chitosan is a bioactive amino polymer with wide applications. Mainly derived from chitin of marine sources, its traditional production still has some drawbacks such as irregular supply, low quality of product and lack of standardization. Farther, extraction processes are time-consuming with considerable environmental impacts, an extremely non-green process. Many works have shown the possibility of producing native chitosan from Mucorales fungi, which is more easily extracted. Such process is advantageous due to low costs, process control and great possibility of high quality products. Moreover, the extraction of chitosan is faster and generates less pollutants. In this scenario, the possibility of standardized production allied with facilitated extraction and less probability of toxicological side effects from marine sources are characteristics that motivated this work. A Mucorales isolate was cultured and the chitosans – native and semi-synthetic – obtained through heterogeneous extraction were compared. Results show substantial differences between them. Those differences are related to the processes required for extraction, yield, productivity, and quality. This work reinforces that Mucorales fungi excel as an alternative for chitosan production.


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