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The spray drying technique was first described in 1860 with the first spray dryer instrument patented by Samuel Percy in 1872. [citation needed] With time, the spray drying method grew in popularity, at first mainly for milk production in the 1920s and during World War II, when there was a need to reduce the weight and volume of food and other materials.
Amine alkylation (amino-dehalogenation) is a type of organic reaction between an alkyl halide and ammonia or an amine. [1] The reaction is called nucleophilic aliphatic substitution (of the halide), and the reaction product is a higher substituted amine.
Since the 1980s, drying cabinets have been common in European laundromats, especially in the tvättstuga – a laundry room in Swedish housing cooperatives.With the large size of the drying cabinets and relatively small size of European homes, drying cabinets have been almost exclusively found in self-service laundry facilities.