Klatte, Fritz

Klaproth, Martin H., 11 398 Klatte, Fritz, 25 628 Kleiner nitric acid process, 17 186 Klosterboer-Rutledge (KR) model, 19 356 Kluveromyces lactis, 12 479 genome of, 26 450t Klystrons, 23 135-136 K-matrix methods, 14 239 Kneading process, in paper recycling, 21 439 440... 

Kel-ChorTM technology, 180, 181 Kellogg Corporation, 172, 180, 181 Ketene route, 235 KevlarTM, 202 Klatte, Fritz, 181... 

Very little significant advance was then made until 1912-1916 when Fritz Klatte discovered the basis for the production of PVC. Patents were granted for the manufacture of vinyl chloride by reacting hydrogen chloride gas with acetylene at 180 °C in the presence of metal chlorides as the catalysts. They also referred to polymerisation by sunlight and suggested some uses for the polymer. 

Vinyl acetate was first described in a German patent awarded to Fritz Klatte and assigned to Chemishe Fabriken Grieshiem-EIectron in 1912. It was identified as a minor by-product of the reaction of acetic acid and acetylene to produce ethylidene diacetate. By 1925, commercial interest in vinyl acetate monomer and the polymer, polyvinyl acetate, developed and processes for their production on an industrial scale were devised. The first commercial process for vinyl acetate monomer involved the addition of acetic acid to acetylene in the vapor phase using a zinc acetate catalyst supported on activated carbon. This process was developed by Wacker Chemie in the early 1930s and dominated the production of vinyl acetate until the 1960s when an ethylene-based process was commercialized which supplanted the earlier acetylene technology [24]. 

Inventor Henri Victor Regnault (accidental polymerization), Fritz Klatte (technological developments), Waldo Semon (commercial applications ... 

Person to discover - Fritz Klatte Klatte, F Rollett, A, US Patent 1,241,738, 1917. 

Around 1900, when indusby began to take an interest in acetylene chemis-tiy, Fritz Klatte produced viiyl chloride at 180°C from acetylene and hydrogen chloride ... 

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