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Pantaerythrite Production Technology

Pantaerythrite Production Technology
Country/Region china
Company Jiangsu Kaimao Chemical Technology Co., Ltd
Categories Lead Acid Battery Production Line
Telephone 519 86151507
ICP License Issued by the Chinese Ministry
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Pantaerythrite Production Technology

  • Product details

Pantaerythrite Production Technology

Pentaerythrite, short form PER; molecular formula: C(CH2OH)4molecular weight:136.15appearance:white crystal or white powdermelting point:261~262℃boiling point:276℃relative density:1.395g/cm3refractive index:1.548solubility: 1g can be dissolved in 18ml water at 15℃. It is soluble in ethanol, glycol, glycerine, and insoluble in acetone, benzene, ether, carbon tetrachloride, and petroleum ether. It is stable in the air, not easy to absorb moisture, non-toxic and with slightly sweet taste.

Production method: Acetaldehyde and formaldehyde have condensation reaction, then reduced by hydrogen or formaldehyde has reaction at strong base condition.

Section A Pentaerythrite Application

Pentaerythrite can be used for producing alkyd resin paint to improve coat film hardness, luster and durability. It also used as raw material for rosin ester, which is the raw material for making colored painted varnish and the printing ink, etc. I also can be used for making dry oil, fire retardant coat and lubrication oil. Its fatty acids ester is effective lubricant and PVC plasticizer, its epoxy derivatives are the raw material for surfactants. It also used as softening agent for hard water. Besides, it also used in medicine, and the pesticide.

Pentaerythrite has four equal methylol group with high symmetry, therefore it is used for making multiple functions group compounds. PETN is explosive and PETA is used for coating.

Section B Pentaerythrite Production Process

1.Comparison between continuous way and traditional batch way

In continuous way, formaldehyde and acetaldehyde are main material. Aldol condensation and Cannizzaro reaction are conducted separately in two special reactors. At last, pure pentaerythrite is produced with dipentaerythrite and sodium formate as byproduct after crystalline separation. Compared with traditional bath way, reaction condition can be efficiently controlled, useless byproduct can be minimized in continuous way.

Meanwhile, in continuous way, because of smaller equipments, stable energy consumptions , stable utilities consumptions, then investment and maintenance cost are reduced. Moreover, higher purity product can be received.

2.Flow Diagram of Production Process

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