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- 1www.robocopper.com

MAAC-1.03 electrochemical analyser

Characteristic

MAAC-1.03 is the name of the newestgeneration of automatic electrochemicalanalysers designed mainly for determinationof copper concentration, and three kinds oforganic additives dozed to electrolyte duringelectrorefinery process. Currently, thesubject of analysis, except the copperconcentration, is the bone glue and thioureaconcentration. Analysers construction andsoftware enable determination one kind oforganic additive more..

MAAC-1.03 analysers are constructed with a view to continuous work in copperelectrorefinery process control systems

MAAC-1.03 analysers together with other devices, software, and services create the mainfragment of technical infrastructure of MAAC system.MAAC-1.03 analysers are assembled in places designed by analytical points structure (APSnetwork) adapted to technological installations of concrete user. MAAC analysers networkperforms automatically analytical tasks according to the analysis plans elaborated by theuser. APS network can be used for the purpose of transferring many technological data anddata from tankhouse laboratories.Assembling MAAC-1.03 analysers network in specific production conditions requires carefulpreparation of implementing documentation, testing, and primary calibration.

Small dimensions of analysers, solid casing, and easy access to exchange the measurementkits and filters allow for assembly those devices in places not interfering the cranes andother devices trajectory that support the production process.

Each MAAC-1.03 analyser can perform 32 analytical sessions during the day and provide thefollowing data:

a) Cu concentration (g/dm3)b) bone glue concentration (mg/dm3),c) thiourea concentration (mg/dm3),d) other (X) organic additive concentration (mg/dm3),e) temperature of electrolyte taken to analysis,f) moment of electrolytes temperature measure (min/hour/date),g) moment of sample analysis start (min/hour/date),h) place of sample taking.

Data analysis results of organic additives concentration provided by MAAC-1.03 analysers,placed in specially selected points of the network, after processing and correlating withtankhouse laboratories data, allow for the realisation of the particular scenario shapingoptimal (in the terms of central shaping the electrolyte composition) physico-chemicalproperties of electrolyte for specific electrorefinery cells section. These results allow also forrealizing scenarios of behaviour of devices responsible for electrolysis running andmaintenance of specific electrorefinery cells sections.

In the course of preparations for the implementations of contracts, it is necessary to perform

the electrolytes tests and additives used by particular tankhouse.

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Information provided on our website are general in nature. The presentation of detailed offerand determination of co-operation conditions, and delivery details is possible in the course ofindividual agreements.Operation of MAAC family automats is brought mainly to periodic measurement kitsreplacement, revitalisation systems operation, and kits regeneration. The current operation ofthese automats does not need any special qualifications. For this purpose is sufficient a fewhours training for indicated stuff from electrorefinery departments.It is possible to move the maintenance service to the companies servicing tankhouses andregeneration of measurement kits to industrial laboratories. With regard to ensure the worksecurity of APS network it is considered the possibility of placing the sensors manufactu ringprocesses creating the measurement kits in the close vicinity of refineries.Due to the unique character of the device and the necessity of taking into account individualneeds of specific tankhouse, MAAC automats are manufactured only on order.

Calibration

Proper working condition of our automats is properly carried out calibrations of measuring

systems.With respect to the MAAC measurement systems, the primary calibration is used (atproducers), and periodic calibrations (at users). MAAC devices are delivered to the userwith implemented measurement pattern (primary calibration) and are ready to performmeasurements. Both, primary calibration and periodic calibrations are performed on thefreely chosen automat (hot standby).Calibrations results received from samples of electrolytes used in a given production circuitsare copied to the other analysers working on APS network of a given circuit.

Primary calibrationPerforming the primary calibration demand requires tests of electrolytes and organicadditives used by the user. Both, electrolytes tests, primary calibrations, and tests are done

in producers laboratory. This does not preclude the creation of a laboratory and technicalconditions enabling performing the tasks of calibration, and also analysers and associatedfacilities servicing.

Periodic calibrationPeriodic calibration procedures are performed on one selected for this purpose analyserwhat allows for fluent patterns actualisation in other analysers without necessity of stoppingthe measurements. Depend on settlements made with the user, the periodic calibrations canbe performed in tankhouse laboratory. For this purpose it is necessary to equip thelaboratory with the proper equipment and calibration procedures. Specialists team chosenby the user after special training, can perform periodic calibrations.

Service

The range of services:1. Calibration of MAAC-1.03 analysers.2. Guarantee and post-guarantee service of MAAC-1.03 analysers.3. Measurement modules service.4. Electrodes regeneration being a part of measurement kits with use of polishing machines.5. Trainings

a) in the scope of basic devices operation and performing an internal service,b) in the scope of performing periodic calibrations,c) in the scope of analysis planning.

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MMS MAAC Management System

In the basic version MAAC-1.03 is equipped with a MMS application allowing both the designof the analysis (planning), and the collection and retrieve the results for data visualisationneeds in production management centres, and for decision-making processes needs relatedto electrorefinery process running.Data synchronisation is automatic and all analysers realising APS network tasks aresubordinated to it. Thanks to MMS application it is possible to transfer the pattern received incalibration process to other MAAC automats working within APS network on the same circuiton which calibration was performed.Software may be prepared in any language and integrated with users existing informationsystems. MMS is adapted to co-operation with production control systems and datavisualisation systems in technological process management centre (operation monitors,central monitor).

Planning and analysis performance

Automat takes maximum 32 electrolyte samples for analysis during one day. One analyticalsession lasts 45 minutes. After performing analysis sample together with rinsing fluid isdrained into the circuit.MAAC performs during one day 32 analytical sessions, each of which includes measuringthe concentration up to three types of organic additives and the concentration of copper.Except determination of bone glue and thiourea concentration there is foreseen thepossibility of determination one kind of component more of organic origin (aviton). Generally,over one day, one MAAC automat can perform maximum 128 analysis of each determinedcomponents.

Basic technical parameters of MAAC-1.03:

1) dimensions: length 750 mm; width 288 mm; height 475 mm,2) weight: ca. 30 kg3) power:

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Measurement module MP-3

MAAC-1.03 works on the basis of replaceablemeasurement kits working in analysers

measurement vessel. Replaceablemeasurement kit is the device equipped withsensors kit and plug-in socket connecting themeasurement kit with measurementelectronics of the analyser. Eachmeasurement kit is connected withtransportation body and together they arecreating the measurement module MP-3. Theconstruction of MP-3 is fulfilling also anenvironment role, allowing for measurementkits revitalisation and keeping them in constantreadiness for measurements. The

Measurement kits revitalisation run in MP-3modules on revitalisation platforms REV-1.

Probe AS-2

Probe AS-2 allows for taking samples by MAAC analyser and pumping out after performedanalysis. The probe AS-2 is designed for periodic calibration purposes in users laboratory.

Adapter AD-2

Adapter AD-2 connects analysers with the pipeline transporting the electrolyte in tankhouse.Adapter AD-2 includes the junction of distillate enabling rinsing the internal installations ofanalyser.

Witold Jan LechJuly, 2012, Wroclaw

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