Photocatalytic gold recovery from spent cyanide plating bath solutions
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چکیده
منابع مشابه
Electrolytic recovery of silver from low concentrated silver cyanide spent plating solutions
Cyanide silver solution containing 200 to 1000 mg L silver ions were used for recovery studies. The nature of the silver deposit was studied using a Hull cell, and the current density range was selected for electrolysis to recover silver. A batch electrochemical reactor, consisting of a planar stainless steel cathode and platinum anode was used and silver was recovered at 0?04 to 0?2 A dm. The ...
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ilver has good electric conductivity and solderability and possesses S excellent electric characteristics as a contact and is thus widely used for plating electronic industrial parts. A cyanide plating bath is most often used, but the cyanide compounds have strong toxicity and a large amount of the cost is rxpkd for securing safe working conditions and waste treatment. Because of this, many cya...
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Activated carbons are extremely versatile adsorbents for major industrial significance, especially for metal ions recovery from wastewaters. In this study, the activated carbon <span style="font-size: ...
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In this paper, bath control is proposed for the electroless nickel plating through holes board process. The main parameters of the product (board) – thickness of the plating film and phosphorous content – are stabilized at constant levels using optimal tracking control. The set point for control is calculated from the model in dependence on the current state of the process. The pH-index and nic...
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The formation of Au microbump arrays for flip-chip bonding was investigated using an electroless Au plating bath. Generally, electroless Au deposition gives a low deposition rate, preventing the fabrication of Au bumps with heights of more than 5 μm. To overcome this problem, we developed a new electroless Au deposition process that employs a non-cyanide bath. This process delivers a high depos...
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ژورنال
عنوان ژورنال: Gold Bulletin
سال: 2005
ISSN: 0017-1557,2190-7579
DOI: 10.1007/bf03215258