Polyaluminium Chloride CAS 1327-41-9

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Model: MOS 1327-41-9
Brand Name: MOSINTER
CAS No.: 1327-41-9
Appearance: yellow resinous solid
Purity (AL2O3) %≥: 29.0
Basicity %: 40-90
Water insoluble %≤: 0.6
PH(1% Solution): 3.5-5.0
Pb %≤: 0.003
As %≤: 0.0006
Cd %≤: 0.0006
Hg %≤: 0.00003
Cr6+ %≤: 0.0015
Category:

Polyaluminium Chloride (CAS: 1327-41-9)

Item Index
Appearance Yellow resinous solid
Purity (AL2O3) %≥ 29.0
Basicity % 40-90
Density (20℃)/(g/cm3) ≥ 1.12
Water insoluble %≤ 0.6
PH(1% Solution) 3.5-5.0
As %≤ 0.0006
Pb %≤ 0.003
Cd %≤ 0.0006
Hg %≤ 0.00003
Cr6+ %≤ 0.0015

Polyaluminium chloride (PAC) is increasingly used for water treatment.

Against the conventional use of aluminium sulphate (alum) it is showing

distinct advantages.
A polyaluminium chloride plant is an investment opportunity with attractive

returns in a growing market.

ENCO ENGINEERING in co-operation with a European licensor is now in a

position to offer plants for the production of polyaluminium chloride, with an

up-to-date, efficient technology.

THE PROCESS

The production process for polyaluminium chloride is including the following reaction steps:

Feeding
Reaction
Filtration

Depending on reaction conditions products with different characteristics are obtained.

For the production of polyaluminium chloride 9% special auxiliaries and catalysts are used.

PROCESS HIGHLIGHTS

The proposed improved PAC process is giving the following advantages against a conventional process:

PAC with  a concentration of 18 % Al2O3 (1-2 % higher)
PAC with  a higher basicity
Low  production cost
No  by-products (no acidic calcium sulphates)

TYPICAL PLANT SIZE

A typical plant capacity for a polyaluminium chloride production plant is 30’000 tons per annum.

PRODUCT CHARACTERISTICS AND APPLICATIONS

Polyaluminium chlorides are synthetic polymers dissolved in water. They react to form insoluble

aluminium poly-hydroxides which precipitate in big volumetric flocs.The flocs absorb suspended

pollutants in the water which are precipitated with the PAC and can together be easily removed.

PAC can be used as a flocculant for all types of water treatment treatment, drinking water, industria

l waste water, urban waste water and in the paper industry.

The possible slightly higher unit price of PAC is compensated by a

    • lower dosage requirement
    • no requirement for any neutralising agent (soda, lime)
    • shorter flocculation time
    • smaller amount of sludge
    • reduced number of back washing steps
    • higher quality of the treated water.

Polyaluminium chloride 18% Al2O3

Appearance liquid with yellow colour
Al2O3  content 17-19 %
Cl 21-22 %
Basicity 36-42 %
Specific Weight at 20  1.36-1.38 g/ml
pH 0.4 – 1.2
Solidification  Point -10 

Applications: PAC 18% Al2O3 can be used for most applications.

Polyaluminium chloride 9% Al2O3

ppearance liquid with yellow colour
Al2O3  content 8.8-9.2 %
Cl 9.8-11 %
Basicity 62-68 %
Specific  Weight at 20  1.18-1.22 g/ml
Solidification  Point -10 

Applications: PAC 9% Al2O3  high basicity is mostly used  for drinking water treatment.

With its use no polyelectrolytes, fungicides etc. will be required for the treatment.

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