Recovery of copper-contaminated sludge in a two-stage leaching process

2006 ◽  
Vol 25 (1) ◽  
pp. 72-78 ◽  
Author(s):  
S.H. Hu ◽  
M.S. Tsai ◽  
F.S. Yen ◽  
T. Onlin
Keyword(s):  
Two Stage ◽  
Leaching Process ◽  
Copper Contaminated

scholarly journals Assessing a two-stage heap leaching process for Platreef flotation concentrate

2012 ◽  
Vol 129-130 ◽  
pp. 74-81 ◽  
Author(s):  
James M. Mwase ◽  
Jochen Petersen ◽  
Jacques J. Eksteen
Keyword(s):  
Heap Leaching ◽  
Two Stage ◽  
Flotation Concentrate ◽  
Leaching Process

Two stage leaching process for selective metal extraction from spent nickel metal hydride batteries

2017 ◽  
Vol 157 ◽  
pp. 322-332 ◽  
Author(s):  
Pratima Meshram ◽  
Hemant Somani ◽  
Banshi Dhar Pandey ◽  
Tilak Raj Mankhand ◽  
Haci Deveci ◽  
...  
Keyword(s):  
Metal Hydride ◽  
Metal Extraction ◽  
Nickel Metal ◽  
Two Stage ◽  
Nickel Metal Hydride ◽  
Leaching Process

Study of Industrial Leaching Process of the Steelmaking Zinc Dust with High Content of Silicon

2014 ◽  
Vol 675-677 ◽  
pp. 704-708
Author(s):  
Yan Li ◽  
Wei Wang ◽  
Zhong Guang Ji ◽  
Yin Xuan Qiu
Keyword(s):  
Filtration Rate ◽  
Zinc Dust ◽  
Leaching Rate ◽  
Steelmaking Process ◽  
Two Stage ◽  
Filtration Process ◽  
Leaching Process ◽  
Treatment Processes ◽  
Leaching Solution ◽  
Flocculation Process

In this work, the traditional two-stage hydrometallurgy leaching process and the neutralization-flocculation leaching process were used for treating the dust, produced in steelmaking process. The results of the comparison of two processes show that traditional techniques could produce the accumulation of silicone gel generated by cycles which hampers the followed filtration process seriously. These situations make it unable to meet the production requirements. By contrast, the filtration process was fast after the acidic leaching when considering the neutralization-flocculation process. Furthermore, leaching solution processing performed better while adding iron and charcoal for improving the effect of the treatment processes. The results showed that zinc leaching rate was above 93%, and desilication rate was above 99%. Meanwhile, filtration rate of the iron-silicon residue was as fast as 4.7 m3.m-2.h-1.

Selective extraction of valuable metals from spent EV power batteries using sulfation roasting and two stage leaching process

2021 ◽  
Vol 258 ◽  
pp. 118078
Author(s):  
Yongming Chen ◽  
Pengfei Shi ◽  
Di Chang ◽  
Yafei Jie ◽  
Shenghai Yang ◽  
...  
Keyword(s):  
Selective Extraction ◽  
Two Stage ◽  
Leaching Process ◽  
Valuable Metals ◽  
Sulfation Roasting

Two-stage self-seeding method for preparation of single crystals of poly(phenylene sulfide)

1989 ◽  
Vol 47 ◽  
pp. 368-369
Author(s):  
Sengshiu Chung ◽  
Peggy Cebe
Keyword(s):  
Single Crystals ◽  
High Performance ◽  
Dilute Solution ◽  
Two Stage ◽  
Annealing Behavior ◽  
High Performance Polymers ◽  
Seeding Method ◽  
Phenylene Sulfide

We are studying the crystallization and annealing behavior of high performance polymers, like poly(p-pheny1ene sulfide) PPS, and poly-(etheretherketone), PEEK. Our purpose is to determine whether PPS, which is similar in many ways to PEEK, undergoes reorganization during annealing. In an effort to address the issue of reorganization, we are studying solution grown single crystals of PPS as model materials.Observation of solution grown PPS crystals has been reported. Even from dilute solution, embrionic spherulites and aggregates were formed. We observe that these morphologies result when solutions containing uncrystallized polymer are cooled. To obtain samples of uniform single crystals, we have used two-stage self seeding and solution replacement techniques.

364: Two stage "Progressive Elongation of Spermatic Cord" Technique in Criptorchidism with very short Spermatic Vessels

2007 ◽  
Vol 177 (4S) ◽  
pp. 121-121
Author(s):  
Antonio Dessanti ◽  
Diego Falchetti ◽  
Marco Iannuccelli ◽  
Susanna Milianti ◽  
Gian P. Strusi ◽  
...  
Keyword(s):  
Spermatic Cord ◽  
Two Stage

360: A Contemporary Analysis of Two-Stage Hypospadias Repair

2007 ◽  
Vol 177 (4S) ◽  
pp. 120-120
Author(s):  
Pamela I. Ellsworth ◽  
Anthony Caldamone
Keyword(s):  
Hypospadias Repair ◽  
Two Stage
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