Mar 16, 2011
The most common corrosive species that has caused failures in chemical plant is the chloride ion. Chloride Stress Corrosion Cracking (CSCC) can occur in hot acid chloride solutions, sodium chloride/peroxide solutions, and seawater. Other neutral halides such as bromides, iodides and fluorides can also cause SCC of the 300 series stainless steels.
Dec 16, 2010
First, let me clarify. I am not proposing this discussion because I have any first-hand knowledge on this subject. I am certain that if Mr. Claus were to commission someone to construct new runners for his sleigh, he would do so under an alias—like Nick O. Las from The Jolly Old Elf Distribution Company, for instance. Anyway, where would Santa get money to pay for such a thing? He would have to barter. On that note...
Dec 13, 2010
After a decline in the summer, stainless and raw material prices are increasing. The volatility comes from both the supply of materials like nickel, nickel pig iron, and the general state of the global economy. Currently the projected December surcharge for 304 and 316 is back to the May-June levels. Our outlook is a flat or slightly increasing January with a correction predicted for late spring...
Sep 22, 2010
1. When the product is corrosive to the piping system. Products containing chlorides and other salts can attack the tubing and fittings used to transport the products throughout a plant. Systems fabricated from 304 or 316 stainless steel can become leaky after prolonged contact with salty food and beverages, e.g. sports drinks and soy sauces. If the product is...
Sep 17, 2010
Unexpected or premature failure of chemical process equipment constitutes a serious hazard in terms of personnel, plant, and environmental safety. By weakening reliability, such failures also adversely affect productivity and profitability. Modern experience in chemical plants has been that failures due to environmental cracking are among the most serious of such problems, making up about 20 to 30% of all corrosion failures. The purpose of this article is to discuss in simple terms some of the pertinent information.
Aug 30, 2010
There are two goals that every processor shares: 1. Maximizing product yields 2. Minimizing CIP costs A product recovery system (PRS) is an efficient and economical way to realize both of these goals. A product recovery system cleans the lines of residual product left behind after your food, dairy, beverage, or pharmaceutical processing. Just one cycle of the PRS (also called pigging) can remove virtually all of the valuable product from the process line, leaving behind only a thin layer of product film for CIP cleaning.
