Page 15 - Catalog For Chemical_NEW!! - FOR E-Book_Neat

PRODUCT INFORMATION

F.A.S

INTROLDUCTION F.A.S to interact with other embryonic nuclei.
3. Distort pattern of crystal growth.
Deposition of inorganic scale in evaporators has 4. Prevent the adherence onto metal surface.
been a costly problem in the sugar industry. Scale 5. Increase dispersing efficiency of solid and
not only restricts production but causes inefficiency insoluble particles.
and failure of production equipment. There are many
chemicals that will prevent scale deposition.
However, most will not remain in the formation long USE OF P.A.S
enough to make them economically feasible as
inhibitor. In selecting the best scale inhibitor. In ● Injection
selecting the best scale inhibitor, laboratory F.A.S is applicable to pressure and vacuum
evaluation is necessary. The term scale describes a condition. In case of evaporators operated at
continuous, adherent layer of foreign material formed atmospheric or elevated pressure, injection must be
on the cane juice side of surface through which heat done using a metering pump to dose the F.A.S
exchange. By adding F.A.S, certain chemical is the diluted solution from the tank into evaporators. The
growth of scales can be inhibited and the insoluble metering pump must be present to give the required
particles can be dispersed in the cane juice. flow rate. For the evaporators under vacuum F.A.S
diluted solution will be sucked into the feed line at an
appropriate rate, using vacuum, the flow rate is
adjusted by control valves.
DESCRIPTION

F.A.S is an organic liquid specially formulated for
inhibiting scale and sludge formulation in the first and DOSAGE
second effect evaporators in sugar industry. It is the ● Used 3 ppm. based on clarified juice
effective inhibitor for calcium salt scale (carbonate, Feed 1.5 – 2.0 ppm to the first effect evaporators.
phosphate, oxalate sulphate, silicate) as well as Feed 1.0 – 1.5 ppm to the second effect evaporators
metallic oxide scale (magnesium, iron). F.A.S .
function at all temperature and pressure, is soluble
at all proportion to water, non foaming and will not be
hydrolyzed. HANDLING

F.A.S is non toxic to skin and eye. However, avoid
ADVANTAGES contact with eye is recommended and in case of
contact, flush eye thoroughly with water.
1. Prolong the operation period before cleaning.
2. Improve heat transfer.
3. Minimize scale formation, formed scale is soft and PACKAGING
easily remove.
4. Economical treatment cost. F.A.S is packed in lined steel drum of 250 Kgs. net.
5. Function at all temperature, pressure and longer
limited time on preventing scale deposition.

FUNCTION OF F.A.S

1. Exhibit the threshold effect. This occurs when
F.A.S coats the micro – crystalline nuclei and
inhibits their growth, preventing the formation of
large particles and maintaining the particles in
solution at concentration above the normal
precipitation.
2. Inhibit the development of micro-scopic nuclei to
the critical size and then redisperse freeing the
TECHNICAL SERVICE
WELLMAN CO.,LTD HAS A STAFF OF TECHNICAL SERVICE
ENGINEERS WHO WILL ASSIST AND TRAIN YOUR MEN ON THE PROPER
EVALUATION AND APPLICATION OF OUR CHEMICALS AND GIVE
RECOMMENDATION TO ENSURE SMOOTH OPERATION
THIS SERVICE IS GIVE FREE OF CHARGE