Problems with aluminosilicate scales in pulp and paper recycle streams create an
interest in the formation mechanism and the chemical equilibrium of aluminosilicates.
Evaluating solubility data from a system containing Na⁺ CI⁻, and OH⁻ ions as well
as aluminium and silicon compounds, allowed to elucidate the characteristics of the
aluminosilicate...
Non-process elements are present in all kraft
recovery systems. Non-process elements are defined as
those elements which are not essential to the chemical
process, i.e., are neither active pulping chemicals (e.g.,
NaOH and Na₂S in the kraft process), nor compounds present
as a result of incomplete conversion of makeup chemicals...
A survey of the pulping literature indicated
that although the kinetics of the Kraft Pulping
process has been studied in detail , very few studies
have been reported for Alkaline Sulfite /
Anthraquinone (ASAQ) pulping process. There is no
existing rate model for this pulping process. Hence,
the objectives of...
Chemical equilibrium is a major factor in many natural and
industrial systems. The ability to predict ionic equilibrium is
extremely valuable in industry in solving problems without the costs
involved in full scale experiments. An example of an application in
the pulp and paper industry is the prediction of non-process...