Related Questions

Bleaching mechanical pulps is called _________ to distinguish it from bleaching of chemical pulps.
To measure residual lignin prior to bleaching pulp brightness between bleaching stages are often used to control the bleaching operation.
Mr.Rohan while helping the students of Class IV in adding and subtracting fractions observed that several students are not able to complete the addition of two improper fractions. He gave a small test with questions from the addition of proper fractions (one item of addition of two similar fractions, three items from the addition of proper and improper fractions, and four items from the addition of improper fractions). He analyzed the responses of each student and found that nearly 45% of students were not clear in adding proper with improper fractions which were affecting their performance in adding two improper fractions. He, therefore, focused on developing the understanding of improper fractions and their addition with proper fractions after which he proceeded to teach the addition of two improper fractions. Which kind of assessment is depicted by this situation?
Bleaching with H2O2, is not common for chemical pulps. (But this is changing somewhat as mills look for chlorine-free systems.) It’s used for brightening mechanical pulps. What is the name of the alternative method utilized?
Lignin-Cl + NaOH and rarr;Lignin-OH + NaCl The lignin in the E effluent gives a ____________ colour that’s ultimately responsible for much of the colour of the final mill effluent.
_________ removal in chemical pulps leads to higher fiber-fiber bonding strength in paper, but the strong chemical pulps decrement in the length of cellulose molecules, resulting in weaker fibers.
___________ are made primarily of bleached chemical softwood pulps and which could have bleached softwood sawdust or hardwood pulps to impart smoothness.
The measurement of lignin in chemical pulps is a vital tool to monitor the degree of cook (extent of delignification during pulping).
The ____________ is the process of extraction of degraded lignin compounds, which could increment the chemical usage in subsequent bleaching stages.
The ____________ is extraction of de-graded lignin compounds, which would increment the chemical usage in subsequent bleaching stages.