Adsorbents: Essential Tools for Efficient Separation and Purification

By | News & Info

Adsorbents are materials that have the capacity to hold molecules of gases, liquids, or dissolved substances on their surface. This characteristic makes them vital in various industries, including environmental management, pharmaceuticals, and chemical processing. The process of adsorption involves the adhesion of atoms, ions, or molecules from a gas, liquid, or dissolved solid to a surface, creating a film of the adsorbate on the surface of the adsorbent. This process is widely used for purification, separation, and decontamination processes.

Recent advancements in adsorbent technology focus on enhancing the efficiency and selectivity of adsorbents. Researchers are developing novel materials such as metal-organic frameworks (MOFs) and carbon nanotubes, which offer higher surface areas and tunable pore structures. These innovations hold promise for more effective environmental cleanup, improved industrial processes, and the development of new pharmaceutical applications.

Types of Adsorbents

  1. Activated Carbon is one of the most common adsorbents used for water and air purification. Its high surface area and porous structure make it highly effective in removing contaminants.
  1. Silica gel is a highly porous form of silicon dioxide (SiO2). It is commonly used as a desiccant to control humidity and in chromatography for separation purposes.
  1. Zeolites are crystalline aluminosilicates known for their uniform pore size and high surface area. They are extensively used in gas separation and as catalysts in chemical reactions.
  1. Activated alumina is a form of aluminum oxide used in water purification and as a catalyst in various chemical processes. It is particularly effective in adsorbing fluoride and arsenic.
  1. Natural clays, such as bentonite and kaolin, are used as adsorbents in a variety of applications, including oil refining and wastewater treatment.

Applications of Adsorbents

  1. Water Treatment – Adsorbents play a crucial role in the removal of pollutants from water. Activated carbon, for instance, is widely used in both municipal and industrial water treatment facilities to remove organic compounds and chlorine.
  1. Air Purification – In air filtration systems, adsorbents like activated carbon are used to remove volatile organic compounds (VOCs) and other pollutants from the air, improving indoor air quality.
  1. Chemical Processing – In the chemical industry, adsorbents are used to separate and purify products. Zeolites are particularly valued for their ability to catalyze reactions and facilitate the separation of hydrocarbons in petroleum refining.
  1. Pharmaceuticals – Adsorbents are used in the pharmaceutical industry for the purification of active pharmaceutical ingredients (APIs) and the removal of impurities during drug manufacturing.
  1. Environmental Cleanup  – Adsorbents are critical in environmental remediation efforts. They are used to clean up oil spills, remove heavy metals from soil, and treat contaminated groundwater.

Optima Chemical has growing portfolio of customers in the adsorbents market. Built on a history manufacturing and modifying Zeolite materials, we both help customers develop and scale-up their new technologies as well custom manufacture materials. Our clients range  from global blue-chip companies to cutting edge start-ups. Our flexibility to handle a broad range of chemistries from Alumininates and Silicates through to more complex organometallic and polymer chemistry has enabled us to assist our clients across all application areas.

Contact us today and see how Optima Chemical can help you in the development of your new Adsorbent technology.

image of LI for lithium scientific code with blue batteries and lithium rocks. Black mass recovery and recycling is a process used for recovering metals from spent batteries.

Optima supports Black Mass recycling and battery recovery development

By | Featured

Recycling lithium-ion batteries has several benefits, including reducing the demand for new raw materials, lowering the environmental impact of mining, and reducing the amount of hazardous waste that would otherwise end up in landfills.

Chemical separation, Black Mass recovery, is one of the techniques used in the recycling of batteries to recover valuable metals like lithium, cobalt, nickel, and copper. The process involves the use of chemicals to selectively dissolve and extract metals from the battery materials.

One common chemical separation process used in battery recycling is hydrometallurgy, which involves the use of aqueous solutions to dissolve and extract metals from battery materials. The process typically involves several steps, including:

  1. Leaching: The shredded materials are then treated with an acidic or alkaline solution to dissolve
    the metals.
  2. Purification: The dissolved metals are purified to remove impurities and other metals that are
    unwanted.
  3. Recovery: The purified metals are then recovered from the solution by precipitation or electro-
    winning.

The recovered metals can then be further refined and processed into high-purity materials that can be used in the production of new batteries or other products. The choice of technique depends on the type of battery and the specific metals that need to be recovered.

Optima has assisted several companies in developing specialty cathode materials and battery additive materials and are now working with companies on how to solve the recycling of the metals back into the battery. We have successfully developed the pilot processes and commercial process for these chemistries. Maybe we can assist you in solving problems and developing your commercial process.

Optima invests into improving process safety management

By | News & Info

Belle, WV – Optima Chemical Group LLC is proud to implement a new tool towards improving safety for potentially hazardous processes. An Advanced Reactive System Screen Tool (ARSST) was recently purchased and installed in Belle, WV to aide in the understanding of process safety critical parameters. The information produced from this specialized calorimeter will be used during process planning and development for prevention of related undesirable conditions.

Safety is essential to any process operation and obtaining information is key to that. Compliance requirements and good business practices tend to have a common theme related to the adequate process safety information; It is imperative that companies have the proper level information to ensure processes can be conducted safely under both desired and worst-case scenarios. 

It is critical to understand how robust the desired reaction is to ensure that process changes do not result in catastrophic events. The ARSST is developed by Fauske and associates to serve as a rapid screening adiabatic tool that can simulate upset scenarios and be used to prevent or manage the effects of a chemical related accident. Bench scale simulations yield directly scalable data that can be used to quantitatively highlight the consequences of runaway reactions, non-condensable gas formation, cooling variations, mischarged materials, and other upset conditions. 

From a business perspective an added benefit is that it contributes directly to risk mitigation and disruption prevention. From a risk management and process safety perspective, this new investment is a natural evolutionary next step at Optima Chemicals and we are happy to include it into our future preliminary hazard assessments. We are also re-evaluating existing processes to better understand what potential hazards we have in our existing processes. 

More about our thermal analysis lab can be found here: 

https://optimachem.com/thermal-analysis-services/