Prospects of a Petroleum Chemical Industry

1934 ◽  
Vol 26 (8) ◽  
pp. 826-836 ◽  
Author(s):  
Carleton. Ellis
Keyword(s):  
Chemical Industry ◽  
Petroleum Chemical

Applications of PTA Powder Welding in Petroleum Chemical Industry

1998 ◽  
Author(s):  
X. Huang ◽  
R. Wang ◽  
L. Xu ◽  
H. Luo ◽  
X. Yin
Keyword(s):  
Surface Modification ◽  
High Temperature ◽  
Service Life ◽  
Chemical Industry ◽  
Alloy Powder ◽  
Production Cost ◽  
Petroleum Industry ◽  
Temperature Resistance ◽  
Life Saving ◽  
Petroleum Chemical

Abstract PTA welding is applied to deposit Ni-based and Co-based materials on the key parts in petroleum and chemical industry, for the purpose of surface modification. The test shows that this process is played an important role in upgrading the materials performance of anti-wear, anti-corrosion and high temperature resistance, prolonging service life, saving expensive materials and reducing production cost. Key words: PTA, Deposit, Alloy Powder, Petroleum Industry, Chemical Industry

The Clinical, Roentgenological and Morphological Effects of an Acute Exposure of Phosgene on the Lungs of Dogs

1971 ◽  
Vol 29 ◽  
pp. 236-237
Author(s):  
R. F. Bils ◽  
W. F. Diller ◽  
F. Huth
Keyword(s):  
Latent Period ◽  
Chemical Industry ◽  
Toxic Substance ◽  
Lung Edema ◽  
X Rays ◽  
Beagle Dogs ◽  
Male And Female ◽  
Morphological Alterations ◽  
Before And After ◽  
Electron Microscopes

Phosgene still plays an important role as a toxic substance in the chemical industry. Thiess (1968) recently reported observations on numerous cases of phosgene poisoning. A serious difficulty in the clinical handling of phosgene poisoning cases is a relatively long latent period, up to 12 hours, with no obvious signs of severity. At about 12 hours heavy lung edema appears suddenly, however changes can be seen in routine X-rays taken after only a few hours' exposure (Diller et al., 1969). This study was undertaken to correlate these early changes seen by the roengenologist with morphological alterations in the lungs seen in the'light and electron microscopes.Forty-two adult male and female Beagle dogs were selected for these exposure experiments. Treated animals were exposed to 94.5-107-5 ppm phosgene for 10 min. in a 15 m3 chamber. Roentgenograms were made of the thorax of each animal before and after exposure, up to 24 hrs.

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