While this method was widely used during the 1930s and 1940s in the West, it has since been superseded by more economical processes based on ethylene in the United States and Europe.
Metode ini banyak digunakan selama tahun 1930-an dan 1940-an di negara-negara Barat, namun kemudian digantikan oleh proses yang lebih ekonomis berbasis etilena di Amerika Serikat dan Eropa.