Determination of N-Nitroso Compounds in the Environment of a Metal Factory Using Metalworking Fluids

1990 ◽  
Vol 39 (3) ◽  
pp. 281-288 ◽  
Author(s):  
Sami Fadlallah ◽  
Sam F. Cooper ◽  
Michel Fournier ◽  
Daniel Drolet ◽  
Guy Perrault
Keyword(s):  
Nitroso Compounds ◽  
Metalworking Fluids ◽  
Metal Factory

Determination of N-Nitroso Compounds in Metalworking Fluids

1990 ◽  
Vol 28 (10) ◽  
pp. 517-523 ◽  
Author(s):  
S. Fadlallah ◽  
S. F. Cooper ◽  
M. Fournier ◽  
D. Drolet ◽  
G. Perrault
Keyword(s):  
Nitroso Compounds ◽  
Metalworking Fluids

scholarly journals Experimental analysis of chemical demulsification of cutting oil

2018 ◽  
pp. 28-37
Author(s):  
Piotr Pacholski ◽  
Jerzy Sęk
Keyword(s):  
Aluminum Sulfate ◽  
Low Cost ◽  
Metalworking Fluids ◽  
Optimal Dosage ◽  
Recycling Process ◽  
Lubricant Oil ◽  
Metalworking Fluid ◽  
Oil In Water ◽  
Oil Water

The wastewater produced by the metal industry is often present in the form of oil-in-water (O/W) or water-in- oil (W/O) emulsions. These fluids contain a certain amount of valuable oil that can be recovered in the recycling process. Therefore, the development of novel, efficient, and low cost processes for the treatment of metalworking fluid is necessary. Demulsification to separate oil/water mixtures is a very interesting option because it allows the recovery and reuse of the lubricant oil and effects in cleaner, easily treatablemwastewater.Chemical destabilization is the most common way of demulsification of metalworking fluids. As an example, inorganic salts can be used as demulsifiers. In the presented work the efficiency of treatment of cutting emulsions with chemical demulsification with usage of aluminum sulfate (IV) is described. The emulsion was prepared with Emulgol-ES12 self-emulsyfing oil delivered by Orlen S.A. In the research the feasibility of the demulsifier was checked.The novel in this paper is determination of the optimal dosage of emulsifier using the TurbiscanLab® apparatus. It is relatively quick and precise method that can be applied in the industry.

Description of the thermal energy analyzer (TEA) for trace determination of volatile and nonvolatile N-nitroso compounds

1975 ◽  
Vol 47 (7) ◽  
pp. 1188-1191 ◽  
Author(s):  
David H. Fine ◽  
Firooz. Rufeh ◽  
David. Lieb ◽  
David P. Rounbehler
Keyword(s):  
Thermal Energy ◽  
Nitroso Compounds ◽  
Trace Determination ◽  
Energy Analyzer

Determination of the effectiveness of UV radiation as a means of disinfection of metalworking fluids

2013 ◽  
Vol 64 (2) ◽  
pp. 831-838
Author(s):  
Ratul Saha ◽  
Robert S. Donofrio ◽  
Susan T. Bagley
Keyword(s):  
Uv Radiation ◽  
Metalworking Fluids

ChemInform Abstract: Possibilities of the Analytical Determination of N-Nitroso Compounds

ChemInform ◽  
1987 ◽  
Vol 18 (39) ◽  
Author(s):  
V. MEJSTRIK ◽  
L. DRZKOVA ◽  
Z. SAGNER ◽  
M. MATRKA ◽  
F. KRAMPERA
Keyword(s):  
Nitroso Compounds ◽  
Analytical Determination

Determination of Extractable, Apparent Total N-Nitroso Compounds in Cured-Meat Products

1995 ◽  
Vol 78 (6) ◽  
pp. 1435-1439
Author(s):  
Walter Fiddler ◽  
John W Pensabene ◽  
Robert C Doerr ◽  
Robert A Gates
Keyword(s):  
Energy Analysis ◽  
Meat Products ◽  
Nitroso Compounds ◽  
Chemiluminescence Detection ◽  
Minimum Level ◽  
Reliable Measurement ◽  
Total N ◽  
Three Samples ◽  
Cured Meat

Abstract The modification of a newly developed method for determination of apparent total N-nitroso compounds by chemical denitrosation and chemiluminescence detection of nitric oxide (thermal energy analysis) is described. The minimum level of reliable measurement was 0.1 ppm, and the repeatability of the method was 0.2 ppm, based on the response of N-nitrosoproline (NPro). Seventy-three samples of cured-meat products, including frankfurters, bacon, and ham, were examined; 50 samples contained less than 1 ppm. The largest amounts, up to 24.8 ppm, were detected in canned corned beef. This method has several advantages over other methods.

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