Process for treating acid tar
Номер патента: CA1080652A
Опубликовано: 01-07-1980
Автор(ы): Karl Diehl, Karl Potuzak
Принадлежит: Individual
Опубликовано: 01-07-1980
Автор(ы): Karl Diehl, Karl Potuzak
Принадлежит: Individual
Реферат: PROCESS FOR TREATING ACID TAR Abstract of the Disclosure A process of treating acid tar by a tralization and heat treatment comprises the steps of providing oxides, hydroxides or carbonates of alkaline earth metals, such as lime, in a dry form or in the form of an aqueous slurry, which may be concentrated, if de-sired, adding said oxides, hydroxides or carbonates to the tar, whereby a semi-solid to solid reaction product is formed, which is reduced in size, if desired, and is subjected to a heat treatment in a plurality of stages, preferably two stages. The heat treatment comprises in a first stage a dry distillation treatment at 350° to 500° C and in a second stage a combustion of the gaseous products of the dry distillation, to which a starting fuel may have been added, if desired, whereas the solid residue left after the dry distillation treatment is discharged from the dry distillation unit.
Composition and process for in situ treatment of acid tar and contaminated soil
Номер патента: WO2021221524A1. Автор: Mihaela TITA. Владелец: Tita Mihaela. Дата публикации: 2021-11-04.