Formalin Production

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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

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