Hubei Sanli Fengxiang Technology Co., Ltd

Response Time: < 24h

Response Rate: 100%

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Trioxane Plant

  • Min. Order:1 Acre(s)
  • Date of Delivery:120 days
  • Payment Type:L/C, T/T
  • Port:Shanghai
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Hubei Sanli Fengxiang Technology Co., Ltd
Jiangsu, China
  • Response Time: < 24h
  • Response Rate: 100%
Main Products: Methyl Acetate Plant, Phenol Alkylation Technology
Overview
Model No.: 1 Brand: Sanli Fengxiang Place of Origin: China
Specifications

Trioxane Plant

Proprietary Technology and Plants 

Technology Introduction:

Trioxane is the most important monomer for polyacetal(POM) synthesis, POM production technology with trioxane as the copolymerization monomer takes 80% of the total POM capacity in the world. It is usually synthesized by enriching 37% formalin to about 65% and then by oxidation in presence of acid catalyst such as sulfuric acid. The production consists of formalin enrichment, trioxane synthesis, trioxane enrichment, extraction, light components stripping and heavy components stripping.

Technical Features:

In trioxane production, one of the biggest problem is that a large amount of steam will be consumed by formalin enrichment and the treatment of diluted formalin generated from formalin enrichment. To solve this problem, SL TECH proposes to oxidize methylal into high concentration formalin(75%) directly instead of synthesis plus enrichment., and meanwhile the formalin generated from trioxane enrichment can be charged back to the methylal synthesis unit. In this way, a closed circuit system is formed. Also for those manufacturers with formalin as the only feedstock, SL TEC has the propriatary license to provide a special falling film vaporizer to enrich formalin to 78%-80%, and enrich the diluted formalin by-product by customized distillation.

Performance:

1.Product Specification

S/N

Item

Index

1

Purity% ≧

99.9

2

Moisture  ppm≦

50

3

Formic Acid  ppm≦

30

4

Methanol  ppm≦

30

2.Specific Consumption

S/N

Item

Consumption Rate

I

Raw Material & Auxiliaries

1

Methanol 
     (mt/ mt of 99.9% trioxane)

1.33

2

Benzene 
     (kg/ mt of 99.9% trioxane)

4

3

Sodium Hydroxide (25%) 
     (kg/ mt of 99.9% trioxane)

0.325

4

Catalyst 
     (kg/ mt of 99.9% trioxane)

0.336

II

Utilities

 

1

Circulating Water 
     (mt/ mt of 99.9% trioxane)

6.1

2

Demineralized Water 
     (mt/hr)

Only used during the plant start-up

3

Circulating Cooling Water (delta t = 10oC)

Covered by electricity consumption

4

Instrumental Air 
     (Nm3/ mt of 99.9% trioxane)

160

5

Nitrogen 
     (Nm3/ mt of 99.9% trioxane)

42.6

6

Process Air 
     (Nm3/ mt of 99.9% trioxane)

73.7

7

Steam 
     (mt/ mt of 99.9% trioxane)

5.89

8

Electricity 
     (KWH/ mt of 99.9% trioxane)

758



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Contact Details

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