Shubhrajyoti Dey

5 Questions 12 Answers 0 Followers

Questions related from Shubhrajyoti Dey

Reaction between hydrated lime and Phenol formaldehyde resin.? What are the products? Is this exothermic?

26 March 2022 7,139 0 View

What is the Refractoriness of a triaxial system with Al2O3 : 74%, Fe2O3: 0.6% and Silica : 25%?

For refractory brick we measure the refractoriness with Orton cone (standard cone) What should be the PCE value (theoritical) for the refractory having following chemical analysis. Al2O3 :...

23 January 2019 8,155 4 View

What is crystal size in micron for Cryptocrystalline quartzite?

For manufacturing silica refractories we use quartzite. Now Quartzites are classified under 2 catagories- crytocrystalline and coarse crystalline. I like to know what is the range of crystal size(...

26 December 2018 4,993 5 View

How deflocculate frit into colloidal silica solution of ph>12?

We would like to make such an solution that will contain colloidal silica with frit. Frit is highly insoluble to the colloidal silica. So we are in search of such a chemical (by means of...

26 August 2017 6,616 11 View

Polymerization mechanism of furfural alcohol?

Dear All, Please help me understand the mechanism of polymerization of furfural alcohol when it is being used as a binder in Al2O3- C refractories. Also I want to know the secondary carbon...

30 November 2016 517 7 View