scholarly journals Combined method for processing molybdenite concentrates based on firing with sodium carbonate

2021 ◽  
Vol 12 (2-2021) ◽  
pp. 111-113
Author(s):  
V. A. Imideev ◽  
◽  
A. O. Berbenev ◽  
P. V. Aleksandrov ◽  
◽  
...  
Keyword(s):  
Sodium Carbonate ◽  
Sodium Sulfate ◽  
Sulfur Compounds ◽  
Water Soluble ◽  
Combined Method ◽  
Water Leaching ◽  
Molybdenite Concentrate ◽  
Leaching Process

The article describes a perspective combined method of treatment molybdenite concentrate based on roasting with sodium carbonate and following water leaching process. This method is characterized by almost completely binding of the sulfur compounds into water-soluble sodium sulfate, conversion of molybdenite into water-soluble odium molybdate, and if concentrate contains rhenium - transform into water-soluble sodium perrhenate.

EFFECTS OF SODIUM SULFATE AND SODIUM CARBONATE SOLUTIONS ON CHEMICAL AND PHYSICAL PROPERTIES OF A CHERNOZEM SOIL

1973 ◽  
Vol 53 (4) ◽  
pp. 399-403 ◽  
Author(s):  
R. R. CAIRNS ◽  
I. SZABOLCS
Keyword(s):  
Physical Properties ◽  
Sodium Carbonate ◽  
Sodium Sulfate ◽  
Chernozem Soil ◽  
Soil Columns ◽  
Dilute Solutions ◽  
Water Leaching ◽  
Carbonate Solutions ◽  
Downward Displacement

Dilute solutions (0.01 N and 0.1 N) of Na2SO4 and Na2CO3 in comparison with water were allowed to penetrate columns of Chernozem Ah horizon soil, which were then subjected to the penetration of water. Although the Na2SO4 solutions penetrated the soil columns slightly more readily than the Na2CO3 solutions, at equal concentrations they were just as or more effective in dispersing the soil and blocking the subsequent entry of water. Leaching with Na2SO4 caused a downward displacement of calcium.

Co-volatilizing-water leaching process for efficient utilization of rhenium-bearing molybdenite concentrate

2020 ◽  
Vol 192 ◽  
pp. 105284 ◽  
Author(s):  
Hu Sun ◽  
Junjie Yu ◽  
Guanghui Li ◽  
Dapeng Shi ◽  
Jun Luo ◽  
...  
Keyword(s):  
Efficient Utilization ◽  
Water Leaching ◽  
Molybdenite Concentrate ◽  
Leaching Process

Non-isothermal kinetic studies of rubidium extraction from muscovite using a chlorination roasting-water leaching process

2020 ◽  
Vol 373 ◽  
pp. 362-368
Author(s):  
Lei Tian ◽  
Ao Gong ◽  
Xuangao Wu ◽  
Jinhui Li ◽  
Chongwei Liu ◽  
...  
Keyword(s):  
Kinetic Studies ◽  
Water Leaching ◽  
Leaching Process ◽  
Chlorination Roasting ◽  
Isothermal Kinetic

scholarly journals Dephosphorization Reaction by Sodium Carbonate and Sodium Sulfate

1979 ◽  
Vol 65 (13) ◽  
pp. 1838-1847 ◽  
Author(s):  
Ryo INOUE ◽  
Hideaki SUITO
Keyword(s):  
Sodium Carbonate ◽  
Sodium Sulfate

Alkali investigations in the Sudan

1925 ◽  
Vol 15 (4) ◽  
pp. 407-419 ◽  
Author(s):  
A. F. Joseph
Keyword(s):  
Sodium Carbonate ◽  
Clay Soil ◽  
Salt Content ◽  
Sodium Sulphate ◽  
Water Soluble ◽  
Soluble Salts ◽  
Nile Water ◽  
Heavy Clay ◽  
Alkali Salts ◽  
Very High

(1) The cotton growing area in the Gezira consists of a heavy clay soil, the proportion of clay being about 50–60 per cent. in the upper layers with a maximum at about the 4th foot.(2) The water soluble salts amount to about 0·2 per cent. The proportion is highest at about the 3rd to 5th foot. The alkalinity (pH) is highest at the 2nd foot.(3) In the first 2 feet, the salts consist mainly of sodium carbonate and the third and fourth of sodium sulphate.(4) The irrigation (Blue Nile) water is of excellent quality as judged by its natural chemical composition. The concentrated water, however, contains a very high proportion of alkali salts. It is estimated that a season of normal irrigation would cause an increase of 0·01 per cent. in the alkali content of the first 4 feet of soil.(5) The sodium salts can readily act on the clay and the sodium clay so formed hydrolyses with the formation of sodium carbonate.(6) Samples taken at the same time from good and bad plots in the same area show a strong correlation between salt content and cropyielding power. There is also a correlation between pH and fertility.(7) In the same season and in the same area, virgin (i.e. unirrigated) plots give a higher yield than those which have been previously under the same system of cultivation.

Sign in / Sign up

Export Citation Format

Share Document