Bandeau_filtration
 
 

PRE-COATING PRODUCTS:

Developed in Laffort’s SARCO laboratory, two cellulose pre-coat products are available either in pre-mixed or pure formulation. These preparations satisfy a range of technical specifications for use.
Prior to filtration operations, the formation of pre-coat is a critical step that determines not only the effectiveness of filtration and improves the clogging index, but also the length of the filtration cycle.

CLAIRULOSE:
Made with different types of pure cellulose, ensures a perfect retention of the finest particles for improved clarification and brilliance.
Used during the pre-coat formation (400-600 g/M) or associated with diatomaceous earth (DE) or perlite.

FILT SPECIALE:
Combination of diatomaceous earth (DE) and alpha- cellulose with a high zeta potential. Ensures an adsorption capacity to improve filtration and delay clogging.
Used during pre-coat formation (600-700 g/M).

DIATOMYL® B et R:
compound:

• Staple Cotton
• Alpha-cellulose fibre treated to increase electrokinetic potential
• Mixture of diatomaceous earth and perlites for a perfect retention of particles and optimal screening.
Diatomyl B and R present an absolute chemical inertia towards must and wines. They ensure better stability of the pre-coat throughout the filtration cycle.

ReferenceColorAveraged
Permeability (L/m²/h)

Permeability
(darcy)

Averaged density
DIATOMYL® R White/rosé 4100 0.25 200-220
DIATOMYL® B White 12 000 0.85 180-190
 
 

FILTRATION PROCESSING AIDS

DIATOMYL: A selection of Diatomaceous earths of various permeabilities for food processing in wines, juices, ciders, oil etc.

ReferenceColor

Permeability
(darcy)

Applications
DIATOMYL® P00
White 4.5 ± 1 Precocious filtration, roughing out.
DIATOMYL® P0 White 3.35 ± 1 New wines filtration.
DIATOMYL® P2 White 1.2 ± 0.25 Fine clarifying filtration.
DIATOMYL® P4 pink 0.24 ± 0.12 Finishing filtration.
DIATOMYL® P5 pink 0.08 ± 0.03 Fine finishing filtration.
DIATOMYL® P6 pink 0.05 ± 0.02 Very fine finishing filtration.

 

PERL

Perlites are vitreous volcanic materials that are light weight and a have a crushed cellular structure that offer different levels of permeability.

Reference

Permeability (darcy)

Applications
PERL 15 4 - 5 Must filtration, mires, lees (vacuum filter)
PERL 10 2,5 - 3 Filtration musts, mires, dregs. (vacuum filter and filter presses)
PERL 8 1,2 - 1,8 Filtration enzymed musts, new wines (filter alluvium, filter presses)
PERL 6 0,5 - 0,8 Fine clarifying filtration (filter alluvium, filter
presses)
PERL 4 0,15 - 0,3 Very fine filtration (filter alluvium, filter presses)
PERL 2 0,08 - 0,1 Finishing filtration (filter alluvium, filter presses)
 

DEPTH FILTER SHEETS:SERIE L

LAFFORT has developed a range of filter sheets spanning a wide range of grades suitable for various wine conditions and filtering requirements.

Reference

Retention
threshold (μm)

Applications
L60 0,35 µm Sterile sensitive wines filtration.
L40 0,45 µm Sterile filtration.
L15 0,60 µm Filtration with a low rate of germ. Sterilising towards
yeasts.
L12 1,0 µm Fine filtration.
L7 1,5 µm Clarifying filtration.
L5 2 µm Maturing filtration. Precocius filtration.
L3 2 - 3 µm Roughing down filtration. Good dregs retention.
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

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