Original sentence: After the Mexican Revolution, he retourned back to Spain, where, due to his wide expirience and knowledge of modern minery methods, he was appointed Minister of Minery in 1822, and supervised the modern mining of those mines in Almadén, Guadalcanal, and Río Tinto.He also colaborated with Joseph-Louis Proust, the famous french chemist at the service of king Charles IV of Spain, who directed the National Laboratory in Segovia.In the autumm of 1780, after several months, he was the first person to discover and isolate tungsten, of which he's credited, along with his brother Juan José, as its discoverer
Edited sentence: After the Mexican Revolution, he returned back to Spain, where, due to his wide experience and knowledge of modern minery methods, he was appointed Minister of Minery in 1822, and supervised the modern mining of those mines in Almadén, Guadalcanal, and Río Tinto.He also collaborated with Joseph-Louis Proust, the famous french chemist at the service of king Charles IV of Spain, who directed the National Laboratory in Segovia.In the autumn of 1780, after several months, he was the first person to discover and isolate tungsten, of which he's credited, along with his brother Juan José, as its discoverer