Download GTU BE/B.Tech 2018 Winter 5th Sem New 2153604 Technology Of Intermediate And Colorants Question Paper

Download GTU (Gujarat Technological University) BE/BTech (Bachelor of Engineering / Bachelor of Technology) 2018 Winter 5th Sem New 2153604 Technology Of Intermediate And Colorants Previous Question Paper

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1
Seat No.: ________ Enrolment No.___________

GUJARAT TECHNOLOGICAL UNIVERSITY

BE - SEMESTER ?V (NEW) EXAMINATION ? WINTER 2018
Subject Code:2153604 Date:20/11/2018

Subject Name:Technology of Intermediate & Colorants

Time: 10:30 AM TO 01:00 PM Total Marks: 70

Instructions:

1. Attempt all questions.

2. Make suitable assumptions wherever necessary.

3. Figures to the right indicate full marks.


MARKS

Q.1 (a) How do you diffentiate unit processes and unit operations in detail. 03
(b) Discuss about DVS ratio used in Nitration Reaction. 04
(c) Discuss the best practices for following unit operations:
(i) Isolation (ii) Blending (iii) Filtration (iv) Grinding
07

Q.2 (a) Write a note on: Ammonolysis. 03
(b) Discuss the Biazzi reactor with respect to hydrogenation technology. 04
(c) Explain the Sulphonation Process Technology with suitable example. 07
OR
(c) Explain the Chlorination Process Technology with suitable process
diagram.
07
Q.3 (a) Write a note on: Centrifuge filtration. 03
(b) Discuss the properties of evaporating liquid that influence the
evaporation process.
04
(c) Explain the stirring apparatus with its importance, uses & difficulties
during different equipment used.
07
OR
Q.3 (a) Discuss the concept of bumping. 03
(b) Write about agitation system and particle size reduction. 04
(c) Explain the batch and continuous process with respect to its
advantages and disadvantages.
07
Q.4 (a) Write a note on: Green Solvents 03
(b) Discuss about 2-Napthol and its derivative. 04
(c) Explain the manufacturing process of BON acid with suitable reaction
scheme.
07
OR
Q.4 (a) Give the synthesis of Napthol sulphonic acid. 03
(b) How do you prepare aniline? Discuss it with reaction scheme. 04
(c) Explain the manufacturing process of Phenol with suitable reaction
scheme.
07
Q.5 (a) Write down the fundamental consideration during the azo dyes
preparation.
03
(b) Discuss about fluorescent whiteners. 04
(c) Explain the disperse dyeing technology over polyester fibres in
details.
07
OR

Q.5 (a) Write down the importance of metal complex dyes. 03
(b) Give the synthesis of anthraquione. 04
(c) Explain the technology involved in synthesis of azo dyes in detail. 07
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