Recovery of high purity ferric phosphate from a spent electroless nickel plating bath

2014 ◽  
Vol 16 (3) ◽  
pp. 1217-1224 ◽  
Author(s):  
Peng Liu ◽  
Chaolin Li ◽  
Xingang Liang ◽  
Gang Lu ◽  
Jianhui Xu ◽  
...  
Keyword(s):  
High Purity ◽  
Electroless Nickel ◽  
Electroless Nickel Plating ◽  
Nickel Plating ◽  
Plating Bath ◽  
Ferric Phosphate

scholarly journals 2-Mercaptobenzimidazole, 2-Mercaptobenzothiazole, and Thioglycolic Acid in an Electroless Nickel-Plating Bath

2015 ◽  
Vol 2015 ◽  
pp. 1-11
Author(s):  
Ahmet Ozan Gezerman ◽  
Burcu Didem Çorbacıoğlu
Keyword(s):  
Waste Water ◽  
Electroless Plating ◽  
Thioglycolic Acid ◽  
Electroless Nickel ◽  
Optical Microscope ◽  
Electroless Nickel Plating ◽  
Nickel Plating ◽  
Plating Bath ◽  
Bath Solution ◽  
Microscope Images

The use of three different materials, 2-mercaptobenzimidazole, 2-mercaptobenzothiazole, and thioglycolic acid, was investigated to improve the performance of electroless nickel-plating baths. By changing the concentrations of these materials, sample plates were coated. Optical microscope images were obtained by selecting representative coated plates. From the results of the investigations, the effects of these materials on electroless nickel plating were observed, and the most appropriate amounts of these materials for nickel plating were determined. Moreover, the nickel plating speed observed with the bath solution containing 2-mercaptobenzimidazole, 2-mercaptobenzothiazole, and thioglycolic acid is higher than that in the case of traditional electroless plating baths, but the nickel consumption amount in the former case is lower. In order to minimize the waste water generated from electroless nickel-plating baths, we determined the lowest amounts of the chemicals that can be used for the concentrations reported in the literature.

A ZERO-EMISSION ELECTROLESS NICKEL PLATING BATH

2019 ◽  
Vol 26 (01) ◽  
pp. 1850130
Author(s):  
WANMIN LIU ◽  
QILONG LIU ◽  
LV XU ◽  
MULAN QIN ◽  
JIYONG DENG
Keyword(s):  
Phosphorus Content ◽  
Electroless Nickel ◽  
Raw Material ◽  
Electroless Nickel Plating ◽  
Nickel Plating ◽  
Hypophosphorous Acid ◽  
Plating Bath ◽  
Excellent Corrosion Resistance ◽  
Zero Emission ◽  
Better Than

A zero-emission electroless nickel plating bath was investigated, which consisted of nickel hypophosphite, hypophosphorous acid, lithium acetate, citric acid and maleic acid. The bath stability, bath life and plating rate were 68.0[Formula: see text]min, 8 cycles and 13.39[Formula: see text][Formula: see text]m/h, respectively. The Ni–P plating layer showed smooth appearance with lots of small continuous nodules, with 12.23[Formula: see text]wt.% phosphorus content. The electrochemical measurements showed that the deposit exhibited excellent corrosion resistance. All of these properties of the zero-emission plating bath and its deposit were better than those of the popular plating solution and its layer. It is most significant that the spent plating bath can be used directly as a raw material to prepare LiFePO4/C materials, which conforms to the concept of circular economy.

scholarly journals ELECTROLESS NICKEL PLATING: BATH CONTROL

2005 ◽  
Vol 38 (1) ◽  
pp. 339-344
Author(s):  
R. Tenno ◽  
K. Kantola ◽  
H. Koivo
Keyword(s):  
Electroless Nickel ◽  
Electroless Nickel Plating ◽  
Nickel Plating ◽  
Plating Bath

scholarly journals Automatic Solution Controller for Electroless Nickel Plating Bath

2016 ◽  
Vol 67 (11) ◽  
pp. 581-584 ◽  
Author(s):  
Norihiko HASEGAWA ◽  
Kei HASHIZUME ◽  
Junichi KATAYAMA
Keyword(s):  
Electroless Nickel ◽  
Electroless Nickel Plating ◽  
Nickel Plating ◽  
Plating Bath

An Experimental Study on the Effect of Aqueous Hypophosphite Pre-Treatment Used on an Aluminium Alloy Substrate before Electroless Nickel Plating

2010 ◽  
Vol 659 ◽  
pp. 103-108 ◽  
Author(s):  
Georgina Szirmai ◽  
József Tóth ◽  
Tamas I. Török ◽  
Norbert Hegman
Keyword(s):  
Electron Microscopy ◽  
Photoelectron Spectroscopy ◽  
Electroless Nickel ◽  
Sodium Hypophosphite ◽  
Treatment Technique ◽  
Electroless Nickel Plating ◽  
Nickel Plating ◽  
Plating Bath ◽  
X Ray ◽  
Pre Treatment

A new surface pre-treatment procedure has been developed in one of our laboratories [1] for electroless nickel (EN) plating, which appears to be an effective and environmentally benign treatment for the following deposition of a sound and high quality surface nickel coating with good adhesion. For that purpose, the aluminium substrate was immersed in a mildly acidic solution (lactic acid) of sodium hypophosphite in order to modify the passive surface and make it suitable for the reductive chemical precipitation of the nickel-phosphorus nuclei from the electroless nickel plating bath. During this novel pre-treatment technique, the surface adsorption of the hypophosphite anions play an important role therefore several advanced surface testing and analytical techniques (Scanning Electron Microscopy-SEM, Transmission Electron Microscopy-TEM, Energy Dispersive X-ray Spectrometry-EDX, X-ray Photoelectron Spectroscopy-XPS were applied in order to monitor and characterize the surface reactions and adsorption phenomena taking place during the pre-treatment. The Al excited XPS (studying P 2p, O 1s, C 1s, Al 2p, Ni 2p photoelectron lines) proved to be one of the most powerful technique in the identification of the chemical species formed and present on the surfaces examined in this study.

Sign in / Sign up

Export Citation Format

Share Document