PHOENIX ℗ THE CAUSTIC SODA RECOVERING CATALYTIC PROCESS BY SPENT SOLUTIONS OF ALUMINIUM EXTRUSION DIE CLEANING Milan,08-01-2010
WHAT IS PHOENIX℗ ? PHOENIX℗
D I E Dirty Dies
C L E A N I N G S H O P
is a special Process studied and developed by C.I.E. for treatment of spent Alkaline DIE CLEANING SOLUTIONS PHOENIX℗ is based on chemical neutralization with solid separation of Al(OH)3 by CO2 and a catalytic process for the regeneration of Caustic Soda. ℗ PHOENIX license is allowed by C.I.E. to his customer with a specific confidential agreement PHOENIX℗ is the process without any liquid discharge Z.L.D. (Zero Liquid Discharge)
PHOENIX℗ PROCESS Die Cleaning Bath NaOH Neutralization & Regeneration
NaOH Concentration
Recyclable Solids
Patent Pending N°MI2009A001043
Al(OH)3
CaCO3
STANDARD WORKING PARAMETERS OF DIE CLEANING SOLUTIONS: NaOH conc. of fresh bath : 200 -:- 300 g/l NaOH conc.of spent bath : 100 -:- 200 g/l Al conc. of spent bath : 30 -:- 70 g/l
PHOENIX℗ Lay-out Catalyst (powder)
Spent solution
inner heating shell inner heating shell
CO 2
Filtration NaOH Regeneration
NaOH Concentration
Neutralization
1° step
Recyclable Solids
NaOH 25 ÷30 %
3° step
2° step Al(OH)3
CaCO3
C.I.E. s.r.l. Via 1° Maggio 20/22 20070 San. Zenone al Lambro (MI) - Italy Tel. +39 02 9810470 – Fax +39 02 98175079 - E-mail: info@cieeng.com – web: www.cieeng.com
Water Recovering and Recycling Compagnia Italiana ℗ Ecologia s.r.l.
PHOENIX - Chemical Reaction + CO2
1° Step
NEUTRALIZATION
Na2CO3 + Al(OH)3
NaOH + NaAlO2 R.Temp
2° Step
(solid)
CCO *
CATALYTIC REGENARATION Na2CO3 + H2O
NaOH + CaCO3 (solid)
T = 80 °C * CCO = Catalytic Calcium Oxide
- H2O 3° Step
NaOH CONCENTRATION
NaOH
NaOH 12-15%
60°- 70 °C
25÷30%
PHOENIX℗ - Performances 1) Recovery 95% of NaOH contained into the spent die cleaning solutions 2) Environmental friendly managing (NO MORE hazardous wastes) 3) Save up to 50% of die cleaning costs 4) Simple,cheap and NON hazardous chemicals to use 5) Produce only NON hazardous solids,recyclable again as raw materials for industry (Aluminium Hydroxide and Calcium Carbonate)
PHOENIX℗ Economical Balance Vs Waste Disposal PHOENIX QUANTITY
PRICE X UNIT
TOTAL COST
WASTE DISPOSAL
1) Chemicals
312 Kg
0,15 € / Kg (average)
37,44 €
--
2) Energy (Methane)
150Nm3
0,3 € / Nm3
45,00 €
--
3) Hazardous Dumping
1000 L
0,2 € / L
NO
200 €
4) NON Hazardous Solids Dumping
400 L
0,15 € / L
60,00 **
--
5) Fresh NaOH (solid)
45 Kg
0,45 € / Kg
20,25 *
135 €
162,69 €
335,00 €
COST X 1000 KG OF DIE CLEANING BATH
Average Phoenix savings without any solids reuse : > 50%
* NaOH lost during die cleaning work ( ~ 15 % ) for carry-over ** In case of reusable solids this cost is cancelled and saving will be 75 % C.I.E. s.r.l. Via 1° Maggio 20/22 20070 San. Zenone al Lambro (MI) - Italy Tel. +39 02 9810470 – Fax +39 02 98175079 - E-mail: info@cieeng.com – web: www.cieeng.com