Alumina: Filtration in the alumina production process

2010 ◽  
Vol 47 (3) ◽  
pp. 20-23 ◽  
Author(s):  
Trevor Sparks
Keyword(s):  
Production Process ◽  
Alumina Production

scholarly journals Simulating the Use of a Smelter Off-Gas in the Precipitation Stage of the Pedersen Process

2021 ◽  
Vol 5 (1) ◽  
pp. 53
Author(s):  
Andriani Manataki ◽  
James M. Mwase ◽  
Casper van der Eijk
Keyword(s):  
Production Process ◽  
Experimental Work ◽  
Co2 Concentration ◽  
Hydrometallurgical Process ◽  
Alumina Production ◽  
High Co2 ◽  
Aluminum Hydroxides ◽  
High Co2 Concentration

The Pedersen process is an alumina production process, which combines pyrometallurgical and hydrometallurgical methods. In the pyrometallurgical stage, limestone is calcined and CO2 is generated. This off-gas can be captured with a high CO2 concentration. At the end of the hydrometallurgical process, aluminum hydroxides, like bayerite, are precipitated using CO2. In this paper, experimental work on precipitation of aluminum hydroxides through the addition of a mixture of CO2, O2 and N2 is presented. The parameters varied, as were the percentages of each gas and the temperature. The indicators measured were the time until the beginning of precipitation and the time that the precipitation lasts. These tests simulate the use of a smelter furnace off-gas in the precipitation stage of the Pedersen process and have shown promising results.

Comparison of deep desulfurization methods in alumina production process

2015 ◽  
Vol 22 (10) ◽  
pp. 3745-3750 ◽  
Author(s):  
Zhan-wei Liu ◽  
Wang-xing Li ◽  
Wen-hui Ma ◽  
Zhong-lin Yin ◽  
Guo-bao Wu
Keyword(s):  
Production Process ◽  
Alumina Production ◽  
Deep Desulfurization

Digestion behaviors of sulfur-containing minerals and desulfuration during alumina production process

2021 ◽  
Vol 173 ◽  
pp. 107234
Author(s):  
Zhanwei Liu ◽  
Hengwei Yan ◽  
Wenhui Ma ◽  
Baoqiang Xu ◽  
Ping Xiong
Keyword(s):  
Production Process ◽  
Alumina Production ◽  
Sulfur Containing

Reaction Behavior and Conversion of Anatase in Alumina Production Process with Calcification-Carbonization Method

2016 ◽  
pp. 85-90
Author(s):  
Wang Yanxiu ◽  
Zhang Ting'an ◽  
Lv Guozhi ◽  
Zhu Xiaofeng ◽  
Zhang Weiguang
Keyword(s):  
Production Process ◽  
Alumina Production ◽  
Reaction Behavior

Reaction behavior and conversion of anatase in alumina production process with calcification-carbonization method

2016 ◽  
pp. 85-90
Author(s):  
Wang Yanxiu ◽  
Zhang Ting’an ◽  
Lv Guozhi ◽  
Zhu Xiaofeng Zhang Weiguang
Keyword(s):  
Production Process ◽  
Alumina Production ◽  
Reaction Behavior

Optimization of the production process of special purpose pasta with the addition of carrots and pectin

2019 ◽  
Vol 28 (9) ◽  
pp. 50-53
Author(s):  
N.N. Martynov ◽  
◽  
G.A. Sidorenko ◽  
G.B. Zinyukhin ◽  
E.Sh. Maneeva ◽  
...  
Keyword(s):  
Production Process

IMPLEMENTASI JOB ORDER COSTING METHOD DALAM PERHITUNGAN HARGA POKOK PRODUKSI MAP

2018 ◽  
Vol 4 (2) ◽  
pp. 43-55
Author(s):  
Ika Yulianti ◽  
Endah Masrunik ◽  
Anam Miftakhul Huda ◽  
Diana Elvianita
Keyword(s):  
Production Process ◽  
Quantitative Data ◽  
Production Cost ◽  
Qualitative Data ◽  
Cost Data ◽  
Method Calculation ◽  
Cost Of Production ◽  
The Right ◽  
The Cost

This study aims to find a comparison of the calculation of the cost of goods manufactured in the CV. Mitra Setia Blitar uses the company's method and uses the Job Order Costing (JOC) method. The method used in this study is quantitative. The types of data used are quantitative and qualitative. Quantitative data is in the form of map production cost data while qualitative data is in the form of information about map production process. The result of calculating the cost of production of the map between the two methods results in a difference of Rp. 306. Calculation using the company method is more expensive than using the Job Order Costing method. Calculation of cost of goods manufactured using the company method is Rp. 2,205,000, - or Rp. 2,205, - each unit. While using the Job Order Costing (JOC) method is Rp. 1,899,000, - or Rp 1,899, - each unit. So that the right method used in calculating the cost of production is the Job Order Costing (JOC) method

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