Contents Chapter 1:...................................................................................................................................................... 6 Formaldehyde ............................................................................................................................................... 6 1.1
Introduction .................................................................................................................................. 7
1.2
History........................................................................................................................................... 7
1.2
Uses Of Formaldehyde ................................................................................................................. 8
1.4
Properties Of Formaldehyde ....................................................................................................... 10
1.4.1
Formaldehyde Gas .............................................................................................................. 10
1.4.2
Formaldehyde Liquid .......................................................................................................... 10
1.4.3
Formaldehyde Solution ....................................................................................................... 11
1.5
Physical Properties ...................................................................................................................... 12
1.6
Properties Of Monomeric Formaldehyde ................................................................................... 16
1.7 ........................................................................................................................................................... 16 Chemical Properties ................................................................................................................................ 16 1.7.1 Reaction With Ammonia ............................................................................................................ 16 1.7.2
Cannizzaro Reaction ............................................................................................................ 17
1.8
Formaldehyde Occurance ........................................................................................................... 17
1.9
Health And Safety Aspects .......................................................................................................... 17
1.9.1
Formaldehyde ..................................................................................................................... 17
1.9.2
Methanol ............................................................................................................................. 18
Chapter 2:.................................................................................................................................................... 20 Manufacturing ............................................................................................................................................ 20 Processes Of ................................................................................................................................................ 20 Formalin ...................................................................................................................................................... 20 2.1
Process Comparison And Selection Criteria ................................................................................ 21
2.1.1
Natural Gas Process ............................................................................................................ 21
2.1.2
Methanol Process ............................................................................................................... 21
2.2
Catalyst Comparison For Methanol Process ............................................................................... 22
2.2.1
Iron Molybdenum Oxide Catalyst ....................................................................................... 22
2.2.2
Silver Or Copper Catalyst ................................................................................................... 23
1