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1. Foam problems encountered in industry
These problems are encountered in a wide range of industries.
These include the food industry, textiles and dyeing, inks and coatings, wastewater treatment, lubricants and even semiconductors.
But it's certainly the paper industry that is the biggest user of foam control products. Foam problems are omnipresent, at every stage of the manufacturing process, from pulp and sheet, wastewater treatment and recycling, to de-inking waste paper, coating and printing.
And it's not just the handling of aqueous solutions that poses problems.
Oil exploration and the petrochemical industry are also confronted with foaming phenomena. In its natural state, crude oil contains gases dissolved under pressure. During extraction, these dissolved gases escape at atmospheric pressure, posing difficult foaming problems...
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Foam problems encountered in industry
Practical technological solutions to foam problems
Economic aspects
The defoamer market is both very large and highly segmented, and it's virtually impossible to obtain information on its precise size. There are too many producers and too many situations to deal with. The most recent European production figures are 12,000 tonnes a year of silicone oil-based antifoams and 18,000 tonnes a year of hydrocarbon-based antifoams.
Producers differ both in their orientations...
Bibliography
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Suppliers
(non-exhaustive list)
Defoamers and defoamers
A non-exhaustive list is given in table 1 . Among these, let's mention the main ones:
Rhodia-silicones http://www.rhodia-silicones.com
...
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