Manufacturing

Chemical Process and Design Handbook by Pratim Kumar Chattaraj

By Pratim Kumar Chattaraj

Show description

Read Online or Download Chemical Process and Design Handbook PDF

Best manufacturing books

ASM Handbook, Volume 20: Materials Selection and Design

ASM instruction manual, Vol. 20: fabrics choice and layout fabrics choice and layout is a accomplished reference at the uncomplicated thoughts, methodologies, and knowledge resources facing fabrics choice and its integration with engineering layout strategies. It makes the relationship among layout and fabrics engineering.

Additive manufacturing

Conceptually, 3D printing or layered production is how to construct elements with no utilizing any part-specific tooling or dies from the pc aided layout (CAD) dossier of the half. this day such a lot engineered units are 3D revealed first to examine for his or her form, dimension, and performance earlier than large-scale creation.

Fundamentals of Manufacturing 3rd Edition

Basics of producing, 3rd version presents a established overview for the producing Technologist and production Engineer Certification Examinations. This publication has been up to date in response to the latest model of the producing basics "Body of data" released by way of the qualified production Technologist and licensed production Engineer Oversight & Appeals Committee of the Society of producing Engineers.

Additional resources for Chemical Process and Design Handbook

Example text

In one variation of the process, acetylene is completely hydrated with water in a single operation at 68 to 73o C using the mercuric-iron salt catalyst. The acetaldehyde is partially removed by vacuum distillation and the mother liquor recycled to the reactor. The aldehyde vapors are cooled to about 35o C, compressed to 37 psi (253 kPa), and condensed. It is claimed that this combination of vacuum and pressure operations substantially reduces heating and refrigeration costs. The commercial process of choice for acetaldehyde production is the direct oxidation of ethylene.

165oC, density: ca. 42) where the backbone or main structural chain is completely or essentially composed of repeating oxymethylene units (-CH2O-)n. The polymers are derived chiefly from formaldehyde (methanal, CH2=O), either directly or through its cyclic trimer, trioxane or 1,3,5-trioxacyclohexane. Formaldehyde polymerizes by both anionic and cationic mechanisms. , pyridine). Boron trifluoride (BF3) or other Lewis acids are used to promote polymerization where trioxane is the raw material. In the process, anhydrous formaldehyde is continuously fed to a reactor containing well-agitated inert solvent, especially a hydrocarbon, in which monomer is sparingly soluble.

It is not easy to volatilize water from concentrated solutions of sulfuric acid, but azeotropic distillation can sometimes help. The sulfonation reaction is exothermic, but not highly corrosive, so sulfonation can be conducted in steel, stainless-steel, or cast-iron sulfonators. A jacket heated with hot oil or steam can serve to heat the contents sufficiently to get the reaction started, then carry away the heat of reaction. A good agitator, a condenser, and a fume control system are usually also provided.

Download PDF sample

Rated 4.49 of 5 – based on 15 votes