A Technique Method of Recycling Cyanide Zinc Plating Waste Liquid in the Laboratory

2013 ◽  
Vol 706-708 ◽  
pp. 496-499
Author(s):  
Shi Lei
Keyword(s):  
Hydrochloric Acid ◽  
Ion Exchange ◽  
Sodium Hydroxide ◽  
Ph Value ◽  
Sodium Hydroxide Solution ◽  
Exchange Method ◽  
Comprehensive Utilization ◽  
Zinc Plating ◽  
Ion Exchange Method ◽  
Plating Solution

It introduces a kind of technique method that recycling cyanide zinc plating waste liquid in the laboratory, involving the fields in electroplating and comprehensive utilization of waste liquid. The process includes the following steps: first remove impurities in the waste liquid, and then add hydrochloric acid to adjust PH value. Using cation-anion and resin, through ion exchange method, remove disturbing ion Cu2+, Cr2O72- in the cyanide zinc plating waste liquid, thus cyanide zinc plating solution can be recycled. Using sodium hydroxide solution to make resin reproduced, and then add NaHSO3, NaOH solid to precipitate Cu2+ and Cr6+ in it, and do incineration treatment. This invention provides an easy and effective method of recycling cyanide zinc plating waste liquid in the laboratory, which improves the utilization of resources, and reduces pollution.

Collaborative Study of an Ion Exchange Method for Ephedrine in Ephedrine Sulfate Sirup NF

1969 ◽  
Vol 52 (4) ◽  
pp. 854-857
Author(s):  
Donald J Smith
Keyword(s):  
Hydrochloric Acid ◽  
Ion Exchange ◽  
Positive Charge ◽  
Exchange Resin ◽  
Collaborative Study ◽  
Cation Exchange Resin ◽  
Polystyrene Sulfonate ◽  
Resin Column ◽  
Exchange Method ◽  
Ion Exchange Method

Abstract An ion exchange procedure for Ephedrine Sulfate Sirup NF, based on the ability of ephedrine to be retained on a polystyrene sulfonate cation exchange resin column, was studied collaboratively by eight laboratories. The compound is held on the column by a positive charge located in the cationic center of the molecule, it is then eluted with hydrochloric acid, and its ultraviolet absorption is measured. The addition of 57.88 mg ephedrine sulfate to Ephedrine Sulfate Sirup NF resulted in recoveries of 58.39 and 57.72 mg, or 101 and 100%, respectively. Recoveries for collaborative samples, each containing 19.22 and 19.33 mg/5 ml, were 99.8 ± 1.83 and 101 ± 4.09%, respectively.

A highly efficient Fe-Ni-S/NF hybrid electrode for promoting oxygen evolution performance

2021 ◽  
Author(s):  
YuYun Chen ◽  
Yang Xu ◽  
Shuai Niu ◽  
Jun Yan ◽  
Ye-Yu Wu ◽  
...  
Keyword(s):  
Ion Exchange ◽  
Oxygen Evolution ◽  
Hierarchical Structure ◽  
Alkaline Solution ◽  
Exchange Method ◽  
Highly Efficient ◽  
Ion Exchange Method

In this study, a Fe-Ni-S/NF hybrid electrode with hierarchical structure was fabricated via a simple hydrothermal and ion exchange method, which exhibits remarkable OER performance in alkaline solution with an...

Preparation of BiOCl/Bi2S3 composites by simple ion exchange method for highly efficient photocatalytic reduction of Cr6+

2020 ◽  
Vol 506 ◽  
pp. 145000 ◽  
Author(s):  
Yun Lu ◽  
Jimei Song ◽  
Wenfang Li ◽  
Yali Pan ◽  
Huiyao Fang ◽  
...  
Keyword(s):  
Ion Exchange ◽  
Photocatalytic Reduction ◽  
Exchange Method ◽  
Highly Efficient ◽  
Ion Exchange Method

Enantioselective oxidation of sulfide to sulfoxide on Ti-containing mesoporous silica prepared by a template-ion exchange method

2001 ◽  
Vol 48 (1-3) ◽  
pp. 271-277 ◽  
Author(s):  
Masakazu Iwamoto ◽  
Yasuhiro Tanaka ◽  
Jiro Hirosumi ◽  
Nozomu Kita ◽  
Sugeng Triwahyono
Keyword(s):  
Ion Exchange ◽  
Mesoporous Silica ◽  
Exchange Method ◽  
Enantioselective Oxidation ◽  
Ion Exchange Method

Synthesis of Cu2+ and Ag+ doped Na2Ti3O7 by a facile ion-exchange method as visible-light-driven photocatalysts

2013 ◽  
Vol 39 (7) ◽  
pp. 8429-8439 ◽  
Author(s):  
M. Vithal ◽  
S. Rama Krishna ◽  
G. Ravi ◽  
Suresh Palla ◽  
Radha Velchuri ◽  
...  
Keyword(s):  
Ion Exchange ◽  
Visible Light ◽  
Exchange Method ◽  
Visible Light Driven ◽  
Ion Exchange Method
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