Blogs and cases
Blogs and customer cases
Polyurethane Elastic (Spandex) Fiber Production Process
In-line Vaisala process refractometer controls the spinning bath concentration in Spandex (polyurethane elastic) fiber production.
Nitrile Butadiene Rubber (NBR), Synthetic Latex
Nitrile butadiene rubber (NBR) is produced in an emulsion polymerization system. Vaisala Process Refractometer determines the degree of the...
Polyamide (Nylon) Fiber Production
In-line Vaisala process refractometer is used to monitor and control the nylon salt, caprolactam and polymer solution concentrations.
In-line wort Plato measurement for optimizing beer brewing process
Determining real-time, in-line the concentration of dissolved solids in weight percent, wort Plato, Brix, Balling, gravity or density with...
Caprolactam Production Process
Vaisala Process Refractometer is used to measure the concentration of aqueous caprolactam solution after the initial extraction to control...
Pectin extraction and evaporation
Learn how Vaisala Sanitary Refractometer is used to continuously monitor the concentration of the liquid pectin extract to ensure optimum...
Tomato ketchup and sauces from tomato concentrate plant
Learn how Vaisala Sanitary Refractometer provides continuous monitoring and control of the whole tomato ketchup and tomato sauce preparation...
Ethanol blending
Vaisala Process Refractometer is used to accurately measure and control the concentration of alcohol in water in the ethanol blending process.
Cellulose Acetate Fiber Production
In-line Vaisala process refractometer for continuous measurement and control of the dope concentration for high quality cellulose acetate fiber...
In-line Brix measurement in carbonated soft and alcoholic drinks production
In-line Brix measurement in carbonated soft and alcoholic drinks production, with Vaisala Sanitary Refractometer combined with automatic...
Solvent swap or solvent exchange
The application note explains in more detail the benefits of using refractive index measurement technique, and includes recommended installation...
Cellulosic fibers: Lyocell process
Vaisala process refractometer continuously monitors the concentration of the dope solution and the solvent at various stages of the Lyocell...
Lead-acid Battery Manufacture: Sulfuric Acid
Vaisala process refractometer measures in-line the sulfuric acid (H2SO4) concentration necessary to ensure the successful power activation...
Catalytic Oxidation Process: Formaldehyde
Vaisala Process Refractometer is used for measuring the formaldehyde CH2O (also known as methanal) concentration and maintaining it at required...
Semiconductor wet chemicals
Vaisala Semicon Refractometers PR-33-S/-23-MS are designed for real-time concentration monitoring of wet chemicals used in the silicon wafer...
Cane sugar recovery
Learn how Vaisala K‑PATENTS® Process Refractometer measures the range 0-100 Brix accurately and in-line, in cane sugar recovery process.
Tomato paste evaporation
In-line Brix concentration measurement with Sanitary Refractometer provides continuous concentration information in the tomato paste evaporation...
Cane sugar crystallization
Learn how Vaisala process refractometer and Zutora SeedMaster-4, a crystallization transmitter and seeding device, enable good quality sugar...
Bulk Chemical Delivery System
Using a Vaisala Semicon Refractometer for measuring liquid concentration brings great benefits and savings in the semiconductor industry's wet...
Cane sugar evaporation
In evaporation, water is evaporated from thin syrup containing about 10-15 Brix dissolved solids to thick syrup of about 50-70 Brix.