Improvements in the Manufacture of Smokeless Gunpowder
Номер патента: GB190608604A
Опубликовано: 27-09-1906
Автор(ы): Richard Ferdinand Geo Robrecht
Принадлежит: Individual
Опубликовано: 27-09-1906
Автор(ы): Richard Ferdinand Geo Robrecht
Принадлежит: Individual
Реферат: 8604. Robrecht, R. F. G. April 10. Nitrocellulose, for use as smokeless gunpowder, is produced as follows. S÷nn hemp or other suitable vegetable fibre is treated with a mixture of three volumes of concentrated sulphuric acid and one volume of concentrated nitric acid for twelve hours at a temperature of 25‹ C. The material, after being squeezed lightly, is kept at the same temperature for another two hours. It is then washed first with cold water and finally with hot water containing ammonia. The product may be gelatinized by solution in acetone, but preferably it is dissolved in sulphuric acid and reprecipitated by water. It is finally dried and crushed.
Improvements in connection with the Manufacture of Ammonia.
Номер патента: GB191209841A. Автор: James Yate Johnson. Владелец: Individual. Дата публикации: 1913-02-06.