All About Extracting CBD With Extraction
Practical knowledge, tools, tips and techniques for developing and implementing innovative CO2-enabled clean manufacturing processes, products, and production lines.
A manufactured product may require component surfaces to provide fast and uniform spreading and contact of applied (liquids) adhesives, coatings, paints, sealants, underfills, or molten metals. The ability of surface to be wetted by another substance is termed wettability.
The past century has witnessed significant advancements in cutting machines, cutting tools, machine controls, processing materials, and cooling-lubrication chemistries. However, surprisingly very little has changed with regards to the application of coolants and lubricants during machining – the machining atmosphere.
A manufactured product may require components to have a certain maximum level of surface contaminants such as particles and oils to enable wetting, bonding, or machining operations, or to enable assembly, testing, or functional performance of the product. The ability of surface to be cleaned to a pre-determined and desired cleanliness level, efficiently and without damage to the surface or product, is termed cleanability.
The most practical and unique aspect of CO2 processing technology is its ability to transform the chemical and physical nature of a manufactured surface, selectively or non-selectively, and in many different ways. Example surface transformations include dirty-to-clean, hot-to-cool, low surface free energy-to-high surface free energy, high outgassing-to-low outgassing, and non-polar-to-polar.
Manufacturing systems comprise numerous processes and apparatuses needed to fabricate a product. In addition, manufacturing systems require inputs such as space, energy, materials, labor, and time. Processes include wire bonding, hard metal turning, precision assembly, adhesive bonding, welding, and inspection, among many other examples.
The processing system comprises three components, as follows:
It has been known for more than 80 years that behaves in a manner similar to an organic “solvent” when compressed to liquid-like densities and as an organic “solute” when compressed into and mixed with another organic solid or liquid. Examples include plasticization of polymers such as low density polyethylene (LDPE) and solid mixed into and complexed with cold hydrocarbon solvents. modifies the physical and chemical properties of solids and liquids having similar cohesion energies, for example expanding organic solvents to reduce viscosity and increasing permeability of gases into polymers.
Cleaning, Cooling, and Lubrication
Carbon dioxide () is a colorless, odorless, and naturally occurring chemical compound made up of one carbon atom covalently double bonded (resonantly) to two oxygen atoms. Carbon dioxide exists in Earth's atmosphere as a trace gas at a concentration of about 400 ppm. Natural sources include volcanoes, hot springs, and geysers. It is present in deposits of petroleum (liquid), natural gas, and calcium carbonate (limestone). It is released from limestone by heat and pressure (sublimation) and by dissolution in water and acids. Because carbon dioxide is soluble in water, it occurs naturally in groundwater, rivers and lakes, in ice caps and glaciers, and also in seawater. Major industrial sources of include fermentation, fertilizer production, energy production, and petroleum oil processing plants. is continuously generated from and/or transformed into various carbon-based compounds - liquid, gas, and solid - through numerous natural and industrial processes such as photosynthesis, fermentation, combustion, and chemical synthesis. -laden emissions from natural and industrial sources are captured, purified, liquefied, stored, and distributed for reuse in many industrial processes.
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