Urea Formaldehyde Resin Produce Plants

We produce this system turnkey.

-  This Project  include the production of the formaldehyde ,urea-formaldehyde precondensate  ( UFC -80 ) and  Urea-formaldehyde resins,melamin-urea-formaldehyde resin and melamin-formaldehyde resin , which are using as bonding for particle-board,plywood,MDF and also paper impregnation.

This plant can  consider  four  main  sections..

     a - ) Formaldehyde and UFC -80 production.

     b - ) Urea-Formaldehyde productions.( MDF )

     c - ) Impregnation resins productions.

     d - ) Utilities and storage.

A - FORMALDEHYDE PRODUCTION

Formaldehyde can produce  oxidation of the methanol with oxygen.

      CH3OH + ½ O 2 ………………………….CH2O + H2O         + 38 Kcal

Methanol and air are sent to the formaldehyde oxidation reactor as vapour.

Formaldehyde oxidation reactor has 14.000 units tubes and these tubes contain iron molibden oxide as cataylst.

Methanol turns to formaldehyde during the passing through the catalyst.

Formaldehyde are sent to absorption column to get solution.

Absorption column is supplied with water or urea solution. If needs to production of UFC – 80 absorption column must supply with urea solution.

B – UREA-FORMALDEHYDE PRODUCTION ( MDF)

Formaldehyde get into the special reactors. Adjusting  pH , first step urea loading

the reactor. First occurs methylol groups with basic pH and after condensation reaction with  asidic pH.

After asidic reaction  needs to add second urea .To adjust the solid content ,it needs to take water with vacuum system.

If needs powder urea-formaldehyde ,without vacuum product send to waiting tank and after spray drying column.

CH2O + 2HN – CO – NH2  ………OHCH2 – NH – CO – NH2 Monomethylol urea

+ CH2O  …….. OHCH2 – NH – CO – NH – CH2OH Dimethylol urea + Asid

NH2 – CO – NH – CH2 – NH – CO – NH –

C – IMPREGNATION RESINS PRODUCTIONS

There are two kinds of impregnation resin for decorpaper,overlay and balance paper.

Urea-Formaldehyde resin           % 50 Solid content

Melamin-Formaldehyde resin    % 54 Solid content

Formaldehyde solution can load the reactor and adjust concentration with process

water.After adding  powder melamine and additivies and heating up to 90 o C.

when polymerization reaction is complated, statr cooling operation.For melamine-

formaldehyde resin reaction needs small reactor than urea-formaldehyde reactor.

( 12 – 15 m3 )

Production of the impregnation  urea-formaldehyde resin can produce big or small

reactor with similar  process.

D – UTILITIES AND STORAGE

Storage  tanks for raw materials and product, cooling system, steam generator,

electric transformer,process water treatment, intrument air and etc.

Formaldehyde Plant

Main raw material is methanol for formaldehyde production. Methanol produces from natural gas.

Second  material is iron molibden oxide catalyst. Methanol can keep the carbon steel tanks.

 GLUE PLANT

Glue plants need more raw materials from Formaldehyde plant. Main raw material is formaldehyde  which is producing formaldehyde plant.

Second   main raw material is urea.

Other chemicals :

Melamine,Caprolactam,diethylene gylogol, formic acid,caustic soda,sulphric acid, ammonia, ammonium sulphate and ammonium cloride.

It  is possible to produce powder melamine-formaldehyde resin for decor paper imp-

regnation. As above chemicals ( melamine,diethylene gylogol,caprolactam ) can use

for melamine-formaldehyde resins.