Examples of 'bleaching stage' in a sentence
Meaning of "bleaching stage"
bleaching stage - In the context of a process or procedure, the bleaching stage refers to the specific phase where bleaching or whitening is done
How to use "bleaching stage" in a sentence
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bleaching stage
A bleach is usually used in the bleaching stage.
A bleaching stage typically follows the curing stage.
Hydrogen peroxide is used also in a separate bleaching stage.
First bleaching stage can be an alkaline or an acidic one.
Delignification and bleaching stage.
The bleaching stage is preferably performed with bleach.
There are many theories as to how a bleaching stage should be controlled.
The first bleaching stage encompasses the removal of metals.
Permits utilization of the ozone delignification bleaching stage of the invention.
The bleaching stage of soybean oil is an important step in the refining process.
A sample of the pulp suspension is taken immediately before the bleaching stage.
The introduction of the bleaching stage using bleach has various advantages.
Ozone is thus mainly used for the activation of the bleaching stage.
It is also possible to divide the peroxide bleaching stage into two sequential bleaching stages.
The delignification system is located between the digester and the bleaching stage.
See also
Bleaching stage Q preferably involves controlled foaming using a foam breaking paddle.
The measuring apparatus can be placed in the desired point of the bleaching stage.
Preferably, the final bleaching stage with hydrogen peroxide ends this sequence.
The bleaching chemical consumption however was rather high with each bleaching stage.
Figure 3 is a schematic view showing the bleaching stage used in bleaching cellulose pulp.
A catalytic amount of the tertiary amine compound is preferably introduced into the bleaching stage.
The substitution of chlorine dioxide for chlorine in the bleaching stage also alters effluent composition.
The transition metal complex and hydrogen peroxide may be added at a conventional bleaching stage.
The cellulose pulp is now conveyed from this bleaching stage to the washing filter 21.
Preferably, the formation of the hypochlorous acid is enabled at the desired bleaching stage.
In the last bleaching stage with the D / PAA combination, DTPA is even detrimental.
Other bleaching agents may be added to the hydrogen peroxide bleaching stage such as oxygen.
Figure 1 illustrates an oxygen gas bleaching stage 9 at a high pulp consistency.
Preferably, the extraction stage is followed by a further bleaching stage.
Alternatively, the washing cycle comprises a stop stage between the bleaching stage and the washing stage.
Method according to claim 1, wherein the cellulose derivative is added to a final acidic bleaching stage.
This is the so called A/D1 bleaching stage.
Furthermore, a certain amount of silicate always remains in CTMP which derives from the bleaching stage.
A process according to claims 1-8, wherein chlorine dioxide is introduced in a bleaching stage with ozone.
This could mean that slight hydrolytic degradation of compounds 1 or 2 occurred during the M1 bleaching stage.
The consistency of a slurry from a washer, either a brownstock washer or a bleaching stage washer, is 9-15 %.
Pulp consistency, 2 % The pulp was taken from the dewatering press after the bleaching stage.
Thus, the invention enables precise control of the bleaching stage.
Examples 6-13 involved bleaching sequences using an ozone bleaching stage.
The obtained purified NaOH fraction ( 6 ) is advantageously returned to the bleaching stage ( 8 ).
The obtained purified caustic fraction ( 6 ) is advantageously returned back to the bleaching stage ( 8 ).
Chlorine dioxide, i.e. a D2 stage is preferred as such further bleaching stage.
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