Programa de conferencias
GRUPO MP - SHAMANA - Online Lithium, Sodium and Boron Analyzers
Ing. Luciano PretiGerente General @
Minería Positiva
Minería PositivaLUCIANO P. PRETI Chemical Engineer Skills: Lithium Direct Extraction Technologies; Potash Solution Mining; Borates Minerals Processing. Project Management Present Position Since 2021 General Manager MP+ SRL. Professional Education 1996 Chemical Engineer. National University of Salta Professional Experience See attached Cv. DLE Technology Development Development Of Direct Lithium Extraction Technology With Alumina-Based Adsorbent Refsa Lithium Project - Technology transfer. Technical knowledge from DLE process developed to pune salts flats brines to another brines, like as wastewater from oil & gas industry. The company’s cutting-edge direct lithium extraction process has been developed specifically to solve the Lithium extraction from oil&gas wastewater with Li+ > 30 ppm. MP+ has developed a process that uses a solid adsorbent material that is capable of selectively adsorb lithium chloride from wastewater without use of reagents. Success Story. When oil was discovered in Palmar Largo Formosa in 1983, oil field brines were considered a worthless by-product of oil producers. After oil & gas separation, the tail wastewater is returned through a network of pipelines to be re-injected back into the formation. In the past year, professionals from MP+ discovered that the Palmar Largo formation brines had anomalous lithium content. This same brine is rich with lithium, but because the geography, climate and brine chemistry are not suited for the conventional process of lithium extraction from brine, large evaporation ponds, used by mining companies in South America Puna it has yet not been commercially developed. Arizaro Project- DLE process developed to Arizaro brines. Process Direct lithium extraction process- Palmar Largo- Formosa, Argentina. Bench Test Experimental adsorption-desorption tests. Determination of adsorption capacity for adsorbents. Results required for scale up. Materials. Adsorbent - Lithium-aluminum hydroxides adsorbent. o Sunresin o MP+ resin - Titanium-based Lithium Adsorbent G-100 Brines - Arizaro Project Brine - Rio Grande Project Brine - REFSA ADF Scale-Up Fixed bed column "Scale-up# using data from bench test developed by MP+ under specified conditions.de bench test to pilot plant. Scale-up from laboratory column 100 ml to four pilot adsorption column unit of 70 liters each. Mechanical design, construction, and assembly of adsorption columns. Evaluation of the large-scale unit performance and optimization of adsorption desorption cycles. Engineering Engineering and Construction (EPCM) of the Lithium Optimization and Training Center Project in REFSA, Palmar Largo, Province of Formosa.
Resumen
The online analyzers for Li+, Na+, and B+ ions are crucial components of the control system for unit operations in lithium salt manufacturing processes. These devices enable monitoring and adjusting operations to maintain optimal conditions. Depending on the concentration ranges, the 2050 Process Analyzer from Turbospec and MP+ Process Analytics are ideal for the fully automatic analysis of these important ions in process streams, as well as additional variables like pH and conductivity. The analyzers can instruct the plant's distributed control system (DCS) to adjust selected parameters, ensuring consistent product quality. The application of these analyzers in lithium salt manufacturing process control is presented, particularly in controlling the brine fed to the plant, solvent extraction of boron, selective adsorption, reverse osmosis (RO), evaporation, and chemical reaction in the production of lithium carbonate from lithium chloride-rich brine and concentrated sodium carbonate solution. Implementing online analyzers allows process engineers to enhance process optimization and control. It is common practice in processing plants to measure variables such as density, conductivity, pH, flow rate, pressure, and temperature. In any lithium carbonate or lithium chloride manufacturing process, measuring the variables and a few concentration determinations in the laboratory are sufficient to control the various unit operations. However, online measurement of ion concentrations, such as those mentioned, is essential to ensure quality standards, improve material balances, and even avoid inefficient consumption of brine or reagents due to unexpected variations in lithium concentration. Adjustments and production control require considerable time when the necessary information for decision-making is generated by the laboratory. In critical process points, chemical analyses can take a long time to detect and correct deviations in control parameters. This results in financial losses due to excessive consumption of raw materials and reagents, productivity losses, quality issues, and other problems. An example is the control of the carbonation chemical reaction by measuring excess sodium carbonate through titration in the reactor overflow. Often, this task is performed by the operations staff themselves, with the high probability of error that this entails. Additionally, deviation control is conducted only a few times a day, which is often insufficient.