Process for the separation of phenols from tea oils, waste water and the like. Like. Products
DE578841C
Method and device for operating unused Azotier ovens
DE602644C
Process for the production of cyanamides, cyanates and cyanides of alkalis, alkaline earths and magnesium
DE588761C
Process and furnace for binding ammonia to mono- or divalent metals in the form of cyanide compounds or binding of hydrocyanic acid to divalent metals in the form of cyanamides
DE555306C
Process for the azotizing of carbides
DE564503C
Process and furnace for binding ammonia at high temperature in the form of compounds of monovalent or divalent metals, such as cyanides, cyanates, cyanamides or mixtures of these compounds
DE559144C
Method for the preparation of a nitrogen fertilizer
DE574357C
Process for restricting the decomposition of ammonia in the production of cyanamides of alkaline earths and magnesium or cyanamides, cyanates, cyanides of alkalis or mixtures of the last-mentioned compounds
DE559170C
Process for the catalytic synthesis of ammonia from the elements under pressure
DE583476C
Process for the preparation of cyanamides of alkaline earths and magnesium
DE634755C
Method and device for smoldering or coking coals by direct electrical heating
DE525813C
Method and device for azotizing carbides
DE500087C
Process for the preparation of a nitrogen-phosphate fertilizer
DE493367C
Stimulants and fertilizers
DE528896C
Process for the production of ammonia
DE509934C
Process for the preparation of a urea-containing calcium cyanamide fertilizer
DE489453C
Process for the azotizing of carbides, in particular calcium carbide
DE519254C
Method of heating the carbide in azotier ovens
DE489452C
Furnace, especially for the azotization of carbides
