Recycling Plastic Bottles with Busch Vacuum Pumps

Plastic waste blows into the waters and pollutes the world’s oceans. Animals die from it or eat tiny plastic particles, and plastic eventually enters the human food chain.

Between 100 and 142 million tons of waste are in the world’s oceans. An estimated ten million tons more are added every year. 75% of this trash consists of plastics, which hardly break down in the ocean. When it does slowly decompose, it becomes smaller and smaller. Particles that are eventually ingested as microplastics by fish, crustaceans, and other shellfish and thus also enter the human food chain. An estimated 80% of the plastic waste in the ocean was originally blown from land into rivers, lakes, and seas.

Since 2007, the customer of Busch USA has been producing fiber for the textile industry out of recycled plastic bottles. The plastic bottles are crushed, shredded, washed, melted, and processed into granules. The granules are melted into a liquid polymer and extruded through tiny openings in a spinneret, creating textile fibers and finally processed into yarn.

For this purpose, the company uses R5 RA vacuum pumps from Busch in two different processes. Six vacuum pumps are applied in four extruder lines, with each line utilizing one to two vacuum pumps depending on process requirements. The R5 vacuum pumps are used for degassing through the extrusion process. This helps remove any unwanted contaminants, such as air or vapor, from the melted plastic and ensures a consistent high-quality product.

Another part of the production process utilizes eight R5 RA vacuum pumps in two solid-state polymerization lines that further degas the plastic pellets before final extrusion. Solid-state polymerization is carried out at high temperatures and zero oxygen levels with deep vacuum. The process promotes additional crosslinking of the polymers, forming more links between polymer chains. This results in a higher-quality product.

Über Busch Vacuum Solutions

Busch Vacuum Solutions is one of the world’s largest manufacturers of vacuum pumps, vacuum systems, blowers and compressors.

The extensive product portfolio includes solutions for vacuum and overpressure applications in all industries, such as chemicals, plastics, semiconductors, medical technology and food. This also includes the design and construction of tailor-made vacuum systems and a worldwide service network.

The Busch Group is a family business that is managed by the Busch family. More than 3,800 employees in more than 69 companies in over 45 countries worldwide work for Busch Vacuum Solutions. Busch is headquartered in Maulburg, Baden-Württemberg, in the border triangle of Germany – France – Switzerland. Apart from Maulburg, Busch manufactures in its own production plants in Switzerland, the USA, Great Britain, the Czech Republic, South Korea, India and China.

Firmenkontakt und Herausgeber der Meldung:

Busch Vacuum Solutions
Schauinslandstraße 1
79689 Maulburg
Telefon: +49 (7622) 681-0
Telefax: +49 (7622) 5484
http://www.buschvacuum.com

Ansprechpartner:
Florian Held
Global Marketing
E-Mail: florian.held@busch.de
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