Sorema Division of Previero N. S.r.l.

Thanks to its long, worldwide experience SOREMA has been able to develop innovative recycling solutions to properly treat, clean, and separate, at dry conditions, plastics from different contaminants. This process is known as dry cleaning of plastic.

The patent-pending SOREMA DRY CENTRIFUGE, originally studied for the removal of sleeve labels on post consumer PET recycling processes, associated to an aerodynamic separator and some additional particular devices, can obtain an extremely efficient separation ofcontamination removable from the plastic surface.

No washing line alone can produce rPET flakes classified as “food grade”, because of the impossibility of achieving internal decontamination. To reach the quality necessary for Bottle-to-Bottle production, the presence of downstream technologies, particularly SSP treatement and extrusion, will always be necessary.

Being the pioneer of the PET recycling market (its own first PET recycling washing plant was installed in 1986), SOREMA can rely on the largest worldwide market share in PET and HDPE bottles recycling systems.

During all these years of experience, SOREMA developed a precise and recognized know-how in high quality rPET flakes. Having developed a worldwide cooperation in Bottle-to-Bottle recycling with the main beverage brands, SOREMA perfectly knows and can easily meet the strict specifications required from beverage bottles from rPET flakes.

Bottle-to-Bottle recycling is a very complex process, involving several different aspects. For this reason, SOREMA’s policy has been to concentrate on the first, very delicate, portion of the PET B2B recycling process, the initial sorting and the washing process.

Bottles arriving to the recycling line are first metered into a bale breaker. They are then washed with a caustic solution, the discharge of the flake-washing module, which would otherwise be discarded. The main contaminants are removed here, reducing machine wear in the following steps.

After the pre-washing, manual and automatic sorting takes places. A wet granulator is then adopted to ground the bottles to flakes. Flakes are separated from water and pulp through treatment in a centrifuge and then sent to a final separation. After drying, an elutriator is used to remove fine particles.

Considering the peculiarities of the relationship between mass and volume of expanded polystyrenes (EPS and XPS) and the relevant difficulties in drying these kinds of material, it is absolutely important to design and study each washing line with a customized approach.
SOREMA, thanks to its long and deep experience can offer its customers the right customized solutions, which are studied case by case according to the customer’s specifications. This is done to take care of the recycling issues related to EPS and XPS materials.

EPS is an extremely lightweight material, which can be processed into many different products. The most common use of EPS is that of protective foam for delicate products, offering protection during storage and transportation. The advantages of this material, other than its low weight, are its high performance in adsorbing shocks and low cost. In addition, EPS is a good insulator, making it the material of choice in the transport of sensitive electronic components, food, and pharmaceutical products.

Car battery recycling represents one of the most interesting recycling process due to the possibility to recover important quantities of lead and plastics.

The value of these materials contained in the batteries, if correctly treated, can represent a very interesting opportunity for investors in recycling market.

The first phase of the recycling process of car batteries is usually carried out independently by the customer and allows the recovery of the lead as metal.