NEW -IAO50BR 12 kg per day Aqua Regia Refining System

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PRECIOUS METAL ASSAY LABORATORY

Introduction to Assaying

The assaying process is a necessary step to determine the quantity of precious metals present in an alloy.
Cupellation is one operation of the assay process in which a sample of gold, wrapped in lead foil, is melted
in a special crucible known as a cupel: this cupel has the capacity of absorbing the non-precious metals
contained in the gold alloy. The weight of the gold alloy sample is usually about 250/1000.
Although this is the most ancient method to determine the purity of an alloy, assaying by means of
cupellation gives greater precision than more modern methods (fluorescent or x-ray spectrophotometry)
and is considerably less expensive.

Laboratory lay-out

LEGEND
1	Electronic analytic scale AG285		2	Anti vibrating table TAV/A
3	Bench drill TRB/A		4	Cupellation furnace FCOPP/A
5	Annealing unit MSLR/B		6	Separation hood CS/B
7	Fume scrubber TLF/500

THE ASSAY LABORATORY

WEIGHING THE SAMPLE

ELECTRONIC ANALYTIC BALANCE TYPE ABT220

• Weight range : from 0 to 82 gr ( indicates up to five decimal figures )
• Weight range : from 0 to 220 gr ( indicates up to 4 decimal figures

QT	PRICE	PACKING	TOTAL PRICE
1	€ 3.900,00	€ 0.00,00	€ 3.900,00

BENCH DRILL TYPE TRB/A

• Max. capacity to drill : 10 mm
• Speeds : n°4
• Spindle speeds : 450/rpm
• Ground base dimensions : 230x270 mm

 

QT	PRICE	PACKING	TOTAL PRICE
1	€ 500,00	€ 0.00,00	€ 500,00

ANTI-VIBRATING TABLE TYPE TAV/A.

• Overall dimensions : 890x710x800 mm
• Weight : 76 Kg

 

QT	PRICE	PACKING	TOTAL PRICE
1	€ 1.080,00	€ 0.00,00	€ 1.080,00

CUPELLATION

CUPELLATION FURNACE TYPE FCOPP/A

• Max. working temperature : 1350°C
• Silicon carbide muffle : 155x205x80 mm
• Number of cupels : n°12 diam 25 mm
• Resistances : ceramic
• Power : 8.5 Kw
• Dimensions : 830x950x1850 mm

 

QT	PRICE	PACKING	TOTAL PRICE
1	€ 12.300,00	€ 0.00,00	€ 12.300,00

 

Spares & Consumables

1/L	2	Nr	SILICON CARBIDE MUFFLE FOR FCOPP/A L=210	€ 146,60	€ 293,20
3/L	6	Nr	CERAMIC RESISTANCES FOR FCOPP/A	€ 110,90	€ 665,40
5/L	1	Nr	SERIES OF ALUMINUM BRAIDS FOR FCOPP/A	€ 137,00	€ 137,00
7/L	12	Nr	RESISTANCE TERMINALS FOR FCOPP/A	€ 7,00	€ 84,00
12/L	1000	Nr	CUPELS N. 1 (22X19)	€ 0,61	€ 610,00
13/L	1000	Nr	CUPELS N°2 (26X22)	€ 0,63	€ 630,00
19/L	1	Nr	PINCERS TO REMOVE CUPELS	€ 36,40	€ 36,40
20/L	1	Nr	LONG KEVLAR GLOVES	€ 37,10	€ 37,10

ANNEALING

MACHINE FOR THE TREATMENT OF CUPEL BALLS TYPE MSLR/B

• Power supply : three phase
• Total power : 1.5 Kw
• Water consumption : 1-2 lt/1’
• Dimensions : 750x450x1300 Kg
• Weight : 120 Kg

 

QT	PRICE	PACKING	TOTAL PRICE
1	€ 6.140,00	€ 0.00,00	€ 6.140,00

ACID ATTACK

SEPARATION HOOD TYPE CS/B

• Number of 6 place ovens : n°2
• Power : 4 Kw
• Dimensions : 1150x650x1820 mm
• Weight : 90 Kg

 

QT	PRICE	PACKING	TOTAL PRICE
1	€ 5.100,00	€ 0.00,00	€ 5.100,00

Spares & Consumables

11/L	6	Nr	BEAKERS FOR FS6/A OVENS	€ 14,70	€ 88,20

SCRUBBING OPERATION

NEUTRALIZATION TOWER FOR ACID FUMES TYPE TLF/500

• Power : 0.25 Kw
• Overall dimensions : 653x700x2165
• Weight : 65 Kg

 

QT	PRICE	PACKING	TOTAL PRICE
1	€ 5.750,00	€ 0.00,00	€ 5.750,00

 

Spares & Consumables

15/L	10	NR	CRUCIBLE 33X33	€ 7,00	€ 70,00
16/L	10	KG	LEAD SHEET	€ 13,90	€ 139,00
17/L	1	NR	ASSAY CARRYING TRAY	€ 25,70	€ 25,70
18/L	1	NR	BEAKER DRAINER	€ 119,30	€ 119,30
23/L	10	NR	HORSE HAIR BRUSH FOR CUPEL DIAM. 10 MM	€ 7,60	€ 76,00
24/L	2	NR	GLASS CONTAINER FOR NITRIC ACID	€ 71,70	€ 143,40
25/L	1	NR	GRADUATED CYLINDER 100 CC	€ 20,00	€ 20,00
26/L	1	NR	GRADUATED CYLINDER 250 CC	€ 25,70	€ 25,70
29/L	1	NR	CUPEL TRAY TO DRY ASSAYS	€ 33,60	€ 33,60

 

 

FOUNDRY

MEDIUM FREQUENCY INDUCTION MELTING FURNACE
TYPE FIM/12NT

The furnace is ideal to melt precious metals. All ITALIMPIANTI ORAFI induction melting furnaces are
fitted with static frequency converters.

A high efficiency of the electrical output that drastically reduces electricity consumption, maintaining the
production rate, is obtained by the frequency conversion system used.

The modular construction of the electric circuit board greatly simplifies maintenance operations and
guarantees high reliability even in the most demanding working conditions.

The highest technical standards used to design the inductors along with the modular construction and the
use of only high quality materials guarantee maximum production even in the worst conditions.

Technical Data

• Rapid interchangeability of the crucible
• Protection of the metal while melting by an inert gas
• Manual extraction of the crucible using the appropriate pincers
• Automatic temperature control of the metal
• Absorbed power : 12 kW
• Power output : 11.4 kW
• Required quantity of the cooling water : 20 lt/min
• Capacity of the crucible : 17 Kg of Au
• Melting time : 15 minutes
• Dimensions : 485x510x915 mm (L x W x H)
• Weight : Approx. 216 Kg

Technical data of the converter

• Power output : 15 kW
• Working frequency : 5 Khz
• Power-supply tension : threephase
• Power factor (cosF-i) : 0.9
• Required cooling power (generator/furnace) : 6,500 Kcal/h
• Minimum water cooling capacity : 15 lt/min
• Min pressure for the cooling water pump : 3 Bars
• Cooling water inlet temperature : 30° + 35°C

⇒Display monitoring of the working parameters of converter as tension and absorbed power

⇒ Computerised alarm diagnostics to sensor as many as 12 alarms or warnings which the worker must take
note of for the system to work properly. Instructions and advice are shown on the display.

⇒ Closed ring power regulation which allows the system to absorb the set power regardless of the quantity
and type of metal to melt.

⇒ Three phase power-supply transformer :

• Nominal tension : depends on where the machines
• Allowed fluctuation of the electrical mains : +/- 10%

⇒ Pulse stirring function for special alloys

QT	PRICE	PACKING	TOTAL PRICE
1	€ 12.000,00	€ 0.00,00	€ 12.000,00

Consumables

97/A

10

NR

GRAPHITE CRUCIBLE - 8 KG AU

€ 72,70

€ 727,00

 

 

Water chilling unit model FRIGO/20

 

These chilling units are ideal for all cases where it is important to keep the temperature of the cooling water
within certain limits. Suggested uses are with :

• Water cooled induction melting furnaces
• Trichloroethylene degreasing machines
• Brazing belt furnaces
• Deoxidation furnaces
• Fumes condensors for hollowing and refining plants

Technical Characteristics

Cooling output	Frig/h : 8170
Compressor	5 kW
Tank capacity	60 lt
Dimensions	560x1250x750 (LxWxH)
Weight	132 Kg
Power supply	Threephase

 

QT	PRICE	PACKING	TOTAL PRICE
1	€ 4.330,00	€ 0.00,00	€ 4.330,00

GRAIN PRODUCTION TANK TYPE RPG/E

The container is used both for the production of metal balls and of
fine sand (dimensions : 1-2 mm3) used for refining.

It is made entirely out of stainless steel and is cylindrical in shape. It
can be easily tilted to recover the grains. It is also fitted with a
centrifugal pump to circulate the water as well as to empty the tank.

TECHNICAL DATA

• Power supply : three-phase
• Power : 0.4 Kw
• Capacity :150 lt
• Overall dimensions : 900x900x1200mm (length-width- height)
• Weight : 50 Kg

 

QT	PRICE	PACKING	TOTAL PRICE
1	€ 3.400,00	€ 0.00,00	€ 3.400,00

Spares & Consumables

7/H	10	Nr	CRUCIBLE+HOLDER RPG/E 1 HOLE	€ 46,20	€ 46,20
8/H	10	Nr	CRUCIBLE+HOLDER RPG/E 25 HOLES	€ 52,50	€ 52,50

Aqua regia
Gold Refining

REFINING TUMBLER UNIT
TYPE IAO/BR50

This refining system consists of a hollow PPL tumbler with a total volume of about 100 litres and a useful
capacity of about 50 litres (acids plus gold grains). The tumbler is inclined at 25° and continuously rotates by
means of a special motor. The rotation speed can be regulated.

The continual rotation causes the gold grains to rub against each other and consequently the dissolution time is
considerably shorter.

External to the tumbler there is a Pyrex-glass fume condenser with water circulatting inside.
Another advantage is that this unit can work without supervision.

The maximum daily quantity you can refine every day is of 12 kg (6 kg per cycle) of gold grains getting a
final gold purity of 999,5/1000 (minimum).

It is a multi-purpose unit allowing the user to refine the gold grains as well as casting scraps and some
types of precious ashes.

The plant is mainly made up of :

• Polypropylene hood designed to the recover any acid losses
• PPL tumbler with a useful capacity of about 100 litres
• No. 2 Graduated tanks for HCl and HNO3.
• No. 1 PPl tray where two 100 lt containers for HCl and HNO3 acids are stored.
• No. 2 Filter units on wheels with a compressed air diaphragm pump to transfer the solutions. One
  450 mm high, the second 750 mm.
• No. 1 100 lt cementation unit.
• No. 1 Control panel

Technical Data :

• Power supply : Single - phase.
• Power : 0,8 Kw
• Overall dimensions : 2600 x 1200 x 2500 mm. ( Length – Width - Height).
• Weight : 375 Kgs

 

QT	PRICE	PACKING	TOTAL PRICE
1	€ 31.000,00	€ 0.00,00	€ 31.000,00

 

Accessories

RX/PH

1

Nr

REDOX - PH KIT

€ 745,00

€ 745,00

 

Consumables

27/M	50	Kg	METABISULPHITE	€ 1,80	€ 90,00
26/M	500	Nr	FILTER PAPER DIAM. 400MM	€ 0,30	€ 150,00

 

NEUTRALIZATION TOWER FOR FUMES
MODEL TLF/850

The tower is used to neutralize fumes and remove organic substances. It is
built out of polypropylene sheets. A sprayer is installed inside the tower to
spray a 1300 mm thick layer of raschig rings.

In order to avoid drop dragging, a second 310 mm thick layer of raschig
rings has been placed upstream to the sprayer.

A neutralization solution container is placed beneath the tower. The
solution circulation pump has a capacity of 55 Lts/1' with a head of 6 m.
The suction fan has a max capacity of 2000 m3/hour.

Technical data:

• Power supply : three-phase.
• Power : 3 kW
• Overall dimensions : 1500x1200x3500 mm (length-width-height).
• Working weight : 350 kg

 

QT	PRICE	PACKING	TOTAL PRICE
1	€ 16,500.00	€ 0.00,00	€ 16,500.00

Water treatment Dept.

RESIN RECOVERY SYSTEM TO RECOVER
TRACE PRECIOUS METALS

Pretreatment storage tank

This is tank where the waste waters are initially sent before the resin treatment process is started.

It has a 2000 lt capacity and is connected to the resin unit.

Fitted with :

• n.1 Pneumatic valve, PVC/EPDM, NC DN32-028
• n.2 Ball valves, PVC/EPDM, 546- DN32
• n.1 Pneumatic level regulator, PVC/EPDM, with flange DN100
• n.1 Centrifugal pump, threephase, 1.1 kW, PVDF, with PP base
• n.1 Valve 546-DN40
• n.1 PVC flowmeter, 1000 lt/hour
• n.1 Pressure gauge, 2.5 Bar, with trap
• n.1 Non-return valve, PVC/EPDM, DN15
• n.1 Pneumatic valve, PVC/EPDM, NC DN15-028
• n.1 Valve 546-DN15

Resin unit

The unit contains a series of selective resins to recover precious PGM and Au metals from the incoming
solution.

Non precious metals ( Cu, Zn etc) pass through to the pre-treatment storage tank with the waste solution
before proceeding to the neutralisation tank.

This unit can filter up to 400 lt per hour.

Fitted with :

• n.3 Columns, 2 round bottoms DN300, 3 DN25 flanges, 1 DN100 handrail, PP nozzles
• n.1 Column resting base
• n.4 Pressure gauges with traps
• n.22 Valves 546-DN15
• n.1 Pneumatic valve 028 DN15

Storage tank

Post treatment PE storage tank, 2000 Lt capacity, with containment tank.

Fitted with :

• n.1 Pneumatic pump, PP body with flow rate regulator
• n.1 Valve 546-DN25
• n.1 Non-return valve 303 DN25
• n.1 Pneumatic level control

 

QT	PRICE	PACKING	TOTAL PRICE
1	€ 31.000,00	€ 0.00,00	€ 31.000,00

ACID WATERS NEUTRALISATION PLANT
MODEL IN/A

DESCRIPTION OF THE IN/A UNIT

This plant can be used to treat all types of acid water but in particular the solutions coming from the
refining process as well as precipitating all non-precious metals in the form of hydroxides. This plant
which consists of :

⇒ n°1 500 lt capacity tank complete with :

• Agitator to stir the incoming solution

n°1 Filter press type 320/50

• The filter press is used to filter water and slime in order to recover precious metals. The press is fitted
  with a 700 lt pneumatic pump. The components of the filter press, from the smallest to the largest, are
  single-block structures that are electrically welded, machined and carefully inspected; the design has
  allowed very low stress levels, even under maximum operating pressure.
• The heads and longitudinal bars are plated with stainless steel or other metals depending on the
  chemical properties of the solutions to be filtered.
• The cloths, the shape and the dimensions of the plates, as well as the materials used inside the filter
  elements, constitute the most important part of a filter press. The choice of these elements is the result
  of years of experience on the part of those who are familiar with these problems.
• The pump is provided with an electronic level control probe for the automatic starting and stopping of
  the plant.
• The solutions exiting the filter press contain chlorides, nitrates and sodium sulphates that can be
  concentrated or diluted with other waste waters.

Technical Data

• Power supply : three-phase
• Power : 1 Kw
• Plate dimensions : 320x320 mm
• Number of plates : 50
• Volume of slime contained : 100 lt
• Overall dimensions : 2680x580x830 mm
  • Type of plate-locking system : mechanical

 

QT	PRICE	PACKING	TOTAL PRICE
1	€ 21.000,00	€ 0.00,00	€ 21.000,00

Ingot production

INDUCTION MELTING UNIT
FIM/12LING

The furnace is ideal to produce 1 kg Au ingots. All ITALIMPIANTI ORAFI induction melting furnaces
are fitted with static frequency converters.

A high efficiency of the electrical output that drastically reduces electricity consumption, maintaining the
production rate, is obtained by the frequency conversion system used.

The modular construction of the electric circuit board greatly simplifies maintenance operations and
guarantees high reliability even in the most demanding working conditions.

The highest technical standards used to design the inductors along with the modular construction and the
use of only high quality materials guarantee maximum production even in the worst conditions.

Technical Data

• Rapid interchangeability of the crucible
• Protection of the metal while melting by an inert gas
• Manual extraction of the crucible using the appropriate pincers
• Automatic temperature control of the metal
• Absorbed power : 10 kW
  
• Power output : 9.5 kW
  
• Required quantity of the cooling water : 20 lt/min
  
• Capacity of the crucible : 2 Kg of Au
  
• Melting time : 15 minutes
  
• Dimensions : 485x510x915 mm (LxWxH)
  
• Weight : Approx. 216 Kg

⇒ Display monitoring of the working parameters of converter as tension and absorbed power
⇒ Computerised alarm diagnostics to sensor as many as 12 alarms or warnings which the worker must take
note of for the system to work properly. Instructions and advice are shown on the display.
⇒ Closed ring power regulation which allows the system to absorb the set power regardless of the quantity
and type of metal to melt.
⇒ Threephase power-supply transformer :

• Nominal tension : depends on where the machines
• Allowed fluctuation of the electrical mains : +/- 10%

⇒ Pulse stirring function for special alloys

B. INGOT SOLIDIFICATION CONTROL UNIT

This special unit consists of :

• Water cooled work table on which the ingot moulds are placed
• Ingot solidification control unit – fitted with photoelectric cells and timed propane gas burner

 

QT	PRICE	PACKING	TOTAL PRICE
1	€ 19.000,00	€ 0.00,00	€ 19.000,00

Price:

Price: € 178.044,70

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Listed price subject to manufacturers price increases without notice.

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