Bings Hubert

TL;DR: In this paper, a process and apparatus for manufacturing vanadium pentoxide in powder form by the thermal decomposition of ammonium metavanadate containing more than 10% NH3 in a single operation is described.

TL;DR: Gold and/or silver are leached from comminuted ore with an alkaline cyanide lixiviant at a superatmospheric pressure of at least 25 bar and with high purity oxygen (at least 90% pure) to reduce the residence time at high yield as mentioned in this paper.

TL;DR: In this paper, a rotary kiln with a steam-air mixture countercurrently contacts the materials in an oxidation step, a second zone where an oxygen containing gas is tangentially injected into the kiln to provide complete combustion of carbon containing materials, and a third zone where a steam stream counter-currently contacts materials in a reducing step and means for providing a plane of rotation to the steam which is relatively perpendicular to the direction of flow of the material.

TL;DR: In this article, a rotary kiln with a steam-air mixture countercurrently contacts the materials in an oxidation step, a second zone where an oxygen containing gas is tangentially injected into the kiln to provide complete combustion of carbon containing materials, and a third zone where a steam stream counter-currently contacts materials in a reducing step and means for providing a plane of rotation to the steam which is relatively perpendicular to the direction of flow of the material.

TL;DR: In this article, a process of leaching ores, ore concentrates, intermediate metallurgical products and the like, which contain acid-soluble constituents, by a treatment in an acid aqueous solution under pressure in a tubular reactor is described.