Impurities Collection

Bessemer converter in Longwy steelworks, France
A Bessemer converter in the Longwy steelworks, France -- a process designed for the mass production of steel from molten pig iron

Casting cannon: tapping furnace to allow molten metal to run into the moulds a feet of workmen on left
530558 Casting cannon: tapping furnace to allow molten metal to run into the moulds a feet of workmen on left. On right, puddler is skimming off impurities

Casting cannon: tapping furnace to allow molten metal to run into the moulds a feet of workmen on left
530557 Casting cannon: tapping furnace to allow molten metal to run into the moulds a feet of workmen on left. On right, puddler is skimming off impurities

Modern Beauty Culture: Face just covered with a Fullers earth pack (b / w photo)
5998103 Modern Beauty Culture: Face just covered with a Fullers earth pack (b/w photo) by English Photographer, (20th century); Private Collection; (add.info)

Interior view of a 16th century metallurgical workshop. Men are removing impurities from silver. From a book by Lazarus Ercker c 1539 - 1594, a Bohemian metallurgist who wrote treatises on metallurgy

Workers using a hemp and flax scutching machine, scutching is the process used to clean cotton of its seeds and other impurities

Late Roman Iron Age (c. 160-375 A. C. ). Bronze strainer and l
Late Roman Iron Age (c. 160-375 A.C.). Bronze strainer and ladle. From a tomb at Vedskolle. Ny Carlsberg Gyptotek. Copenhagen. Denmark

Bessemer converter in a steelworks
A Bessemer converter in a steelworks -- a process designed for the mass production of steel from molten pig iron, removing impurities by oxidation by blowing air through the molten iron

Salt Works: on right quality of product is being shown to potential customer while, left, women are refining brine in a boiler

Natural ruby in marble
From the mines of Mogok in Burma (Myanmar). Ruby is the red variety of the mineral corundum with small impurities of chromium that turn it red

Microdensitometer
The Analytical Research Unit, Harwell, is a service for industry to identify and control impurities in industrial materials : Using a microdensitometer and computer Date: 1973

Analysing fuel oil for silicone traces
MODEL RELEASED. Analysing fuel oil for silicone traces, using an absorption spectroscope. Metal and silicone impurities in fuel oil can lead to problems such as inefficient combustion

Blue fluorite from Derbyshire, UK

Polished limestone. Three samples of polished limestone. Limestone is a sedimentary rock that consists mainly of calcium carbonate. The different colours are caused by impurities

Wax run down at Llandarcy
The wax run-down at the BP crude oil processing plant at Llandarcy, Swansea, Wales

C16 Alchemists
An alchemist and his assistant heat the substances whose essence will collect in the flasks at the top of the apparatus, shedding impurities as they rise up the column

A Bessemer converter in a German steelworks -- a process designed for the mass production of steel from molten pig iron, removing impurities by oxidation by blowing air through the molten iron

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"Unveiling the Art of Purification: From Ancient Techniques to Modern Marvels" Journey back in time to the Bessemer converter at Longwy steelworks, France, where they were eradicated from molten iron, shaping the foundation of modern steel production. Witness the timeless allure of beauty culture as a black and white photograph captures a face adorned with a Fullers earth pack, an age-old remedy for purifying and rejuvenating the skin. Delve into history's treasure trove with a glimpse into Late Roman Iron Age artifacts - behold a bronze strainer designed to sift out impurities and refine precious metals. Step inside a 16th-century metallurgical workshop where skilled craftsmen meticulously remove impurities from silver, showcasing their expertise passed down through generations. Explore the industrial revolution as workers employ hemp and flax scutching machines to cleanse cotton fibers of unwanted seeds and other impurities, revolutionizing textile manufacturing. Discover the meticulous process behind salt production as potential customers marvel at its impeccable quality while witnessing firsthand how they can eliminated in salt works. Marvel at nature's masterpiece as you gaze upon a natural ruby embedded within marble—a testament to Earth's ability to create stunning gemstones free from imperfections. Enter the realm of scientific precision with microdensitometers analyzing minute details in various materials, ensuring purity standards are met across industries like art preservation and printing technology. Peer into laboratories dedicated to fuel analysis where experts scrutinize oil samples for traces of silicone—an essential step towards maintaining efficiency and reducing environmental impact. Lose yourself in the mesmerizing hues of blue fluorite crystals that not only captivate but also symbolize purification by dispelling negative energies and promoting mental clarity. Behold amethyst crystals renowned for their spiritual properties—these radiant gems not only exude beauty but also possess purifying energies that cleanse the mind, body, and soul.