Selective froth flotation of PVC from PVC/PET mixtures for the plastics recycling industry.: An article from: Polymer Engineering and Science
Book Details
PublisherSociety of Plastics Engineers, Inc.
ISBN / ASINB00098C8U8
ISBN-13978B00098C8U9
MarketplaceFrance 🇫🇷
Description
This digital document is an article from Polymer Engineering and Science, published by Society of Plastics Engineers, Inc. on September 1, 1998. The length of the article is 4849 words. The page length shown above is based on a typical 300-word page. The article is delivered in HTML format and is available in your Amazon.com Digital Locker immediately after purchase. You can view it with any web browser.
From the author: It was found that strongly alkaline solutions of sodium hydroxide are able to destroy the hydrophobicity of polyethylene terephthalate (PET) whereas the hydrophobicity of polyvinyl chloride (PVC) remains only slightly affected by these solutions. On this basis, a technology involving treatment of PET and PVC particles with alkaline solutions followed by froth flotation of PVC with nonionic surfactants has been developed and tested at a laboratory scale. In both steps of this technology, appropriate experimental conditions, such as concentration of reagents, temperature and residence time, have been optimized through a detailed examination of all these variables on the efficiency and selectivity of PVC separation from PVC/PET mixtures of varying composition. It is demonstrated that using this technology 95-100% recovery of PET and PVC can be achieved in separate products from a variety of PVC/PET mixtures.
Citation Details
Title: Selective froth flotation of PVC from PVC/PET mixtures for the plastics recycling industry.
Author: J. Drelich
Publication:Polymer Engineering and Science (Refereed)
Date: September 1, 1998
Publisher: Society of Plastics Engineers, Inc.
Volume: v38 Issue: n9 Page: p1378(8)
Distributed by Thomson Gale
From the author: It was found that strongly alkaline solutions of sodium hydroxide are able to destroy the hydrophobicity of polyethylene terephthalate (PET) whereas the hydrophobicity of polyvinyl chloride (PVC) remains only slightly affected by these solutions. On this basis, a technology involving treatment of PET and PVC particles with alkaline solutions followed by froth flotation of PVC with nonionic surfactants has been developed and tested at a laboratory scale. In both steps of this technology, appropriate experimental conditions, such as concentration of reagents, temperature and residence time, have been optimized through a detailed examination of all these variables on the efficiency and selectivity of PVC separation from PVC/PET mixtures of varying composition. It is demonstrated that using this technology 95-100% recovery of PET and PVC can be achieved in separate products from a variety of PVC/PET mixtures.
Citation Details
Title: Selective froth flotation of PVC from PVC/PET mixtures for the plastics recycling industry.
Author: J. Drelich
Publication:Polymer Engineering and Science (Refereed)
Date: September 1, 1998
Publisher: Society of Plastics Engineers, Inc.
Volume: v38 Issue: n9 Page: p1378(8)
Distributed by Thomson Gale
