As an important organic chemical material - formaldehyde, it has a low boiling point and a lively nature, so we make a strict warning here. When packaging formaldehyde, the requirements must be high, and storage must be careful. Our company's formaldehyde mainly adopts two-stage falling film concentration, jet granulation and continuous drying technology, which effectively solves the small production scale and high raw material consumption caused by domestic kettle concentration, rake or scraper drying process. , poor product quality and other shortcomings, so that the production of formaldehyde has reached the advanced level abroad.
Its main technical work and processing flow is as follows: first depolymerize 37% or 55% formaldehyde aqueous solution, and then obtain about 80% concentrated formazan solution through two-stage falling film vacuum concentration, and after the polymerization reaction occurs under the action of a telogen, Then through spray granulation and continuous drying, about 96% of the finished product of paraformaldehyde is obtained.
The main indicators of formaldehyde:
Ash content≤100ppm
Melting point 120～175℃
Bulk density 600～800g/L
PH3.5～5.0
Response time 5 minutes
Solubility (10 minutes in 100 ℃ water) 95%
Degree of polymerization 8～30
Therefore, the production process of formaldehyde is very complicated and simple. For our excellent formaldehyde production industry, we will fully devote ourselves to the production of formaldehyde. You are welcome to negotiate for purchase.