In 3750 BC, Egyptians and Sumerians were the first known people to use charcoal.
In BC 1550, ancient Egypt recorded the medical use of charcoal.
Greek doctors Hippocrates (460-359 BC) and Pliny used charcoal to treat epilepsy and anthrax.
In 450 BC, a recent study on the shipwreck of the Phoenician merchant ship showed that drinking water was stored in charred barrels. It is a storage method of marine drinking water in history18th century.
During the same period, Hindu religious documents also mentioned the use of sand and charcoal to filter and purify drinking water.
157, Claudius's medical paper mentioned the use of charcoal made from vegetables and animals to treat various diseases.
In Compendium of Materia Medica (A.D. 15 18- 1593) compiled by Li Shizhen in China in the Ming Dynasty, it was mentioned that charcoal was used to treat diseases.
1773 Scheler discovered the adsorption capacity of charcoal through a large number of experiments, which can adsorb various gases.
1777 reported the thermal effect of charcoal and its ability to adsorb gas, which led to the later "condensation adsorption theory".
In 1785, Scheler studied the adsorption capacity of charcoal gas, ranging from steam to a series of organic chemicals, and the decolorization of charcoal in various aqueous solutions, especially the commercial application of tartaric acid production. This seems to be the first time to systematically consider the adsorption of charcoal on liquid phase.
At this time, the sugar industry has been looking for an effective method to decolorize syrup. At this time, charcoal did not play this role particularly effectively, which may be because the degree of porosity development has not reached the level of charcoal for syrup decoloration.
1794, a sugar factory in England successfully produced syrup decolorized with charcoal.
1805, France produced beet syrup on a large scale for the first time through charcoal decolorization.
From 1805 to 1808, Delessert successfully decolorized beet wine with charcoal.
18 15, most sugar industries have switched to granular bone charcoal as decolorant.
Bussy pointed out in 1822 that the decolorization performance of activated carbon is not only affected by inherent raw materials, but also by heat-treated finished products and particle size. He showed that high temperature or long carbonization time reduced the adsorption performance and porosity, although he could not measure this factor. This is the first time to record the thermal and chemical process of activated carbon production.
184 1 year, Skardon systematically used hydrochloric acid for pickling, and then heated to regenerate bone carbon. This effectively eliminates the carbon adsorbed by mineral salts. He also introduced the process of producing and regenerating bone carbon in the first continuous vertical kiln in Germany.
1854, house introduced carbon, which was successfully used in the filter of London sewer system to remove impurities in steam and gas.
In 1862, Lipscombe prepared drinking water purified by carbon.
1865, the hunter found that the carbon made of coconut shell has good gas adsorption performance.
In 188 1, Kaiser first used the word' adsorption' to describe the carbon absorbed by gas.
190 1 year, Raphael von Ostrejko invented using metal chloride to carbonize plant-derived raw materials or using carbon dioxide or water vapor to react with carbonized materials to make activated carbon, and successively obtained British and German patents.
19 1 1 year, an Austrian factory produces activated carbon under the brand name Eponit.
19 14 to 19 18 The toxic gas from World War I entered the battlefield, and granular activated carbon was used as adsorbent to mass-produce military gas masks.
After 19 18, the development of large-scale and strictly controlled activated carbon production in wartime led to the commercial production and application of activated carbon after the war. Europe has made great progress in manufacturing new raw materials of activated carbon. Activated carbon produced from zinc chloride in coconut and almond shells has high mechanical properties and the ability to absorb gas and steam.
1935- 1940, Czechoslovakia used zinc chloride to activate sawdust to produce activated carbon for recovering volatile solvents and removing benzene gas.