Outotec (finland) Oy

Bertold Stegemann

Guenter Schneider

Edgar Gasafi

Pekka Hiltunen

Bernd Reeb

Günter Schneider

Ludwig Hermann

Dirk Lohrberg

Alessio Scarsella

Sonia Acosta De Noack

A method for the heat treatment of granular solids includes initially introducing solids into a first reactor configured as a flash reactor or fluidized bed reactor where they are brought into contact with hot gases at temperatures in the range 500&#xb0; C. to 1500&#xb0; C. Next, the solids are passed through a residence time reactor in which they are fluidized. The residence time reactor is configured in a manner such that it has various regions which are separated from one another, from which the solid can be withdrawn in a manner such that it is provided with a variety of residence times in the residence time reactor.

Method and device for the heat treatment of granular solids

A process for separating heavy metals from a phosphoric starting material includes, in a step (i), heating the starting material to a temperature between 700 and 1,100&#xb0; C. in a first reactor and withdrawing combustion gas. In a step (ii), the heated starting material at the temperature between 700 and 1,100&#xb0; C. is transferred to a second reactor, chlorides of alkaline and alkaline earth metals are added and process gas is withdrawn.

Process and plant for separating heavy metals from phosphoric starting material

A process for operating a fuel fired reactor includes introducing fuel into the reactor and burning the fuel in the reactor by means of at least one main burner. Relevant parameters of the process are monitored. Within a predetermined critical operating range for an enforced shut down, a secondary, more stringent operating range is implemented as shut down criteria. The main burner is shut down upon one or more of the relevant parameters leaving the secondary operating range while at least one pilot burner continues to operate as long as the relevant parameters are maintained within the critical operating range.

Process for operating a fuel fired reactor

Growing community of inventors

Eschborn, Germany

Bertold Stegemann