Issue 23/2021 - The first set of resin synthesis of paraformaldehyde and DMMn technology in China was successfully developed

Recently, the scientific and technological achievements appraisal meeting of "New Process Coupling and Strengthening of Methanol and Formaldehyde to Polymethoxydimethyl Ether Process" organized by the China Petroleum and Chemical Industry Federation and composed of seven experts and academicians was held in
Beijing.
The appraisal conclusion unanimously believes that the technical achievements of DMMn synthesized from paraformaldehyde jointly developed by Kerry Environmental Protection Technology Co.
, Ltd.
and Tianjin University have advanced and reliable technical indicators, strong applicability, and the overall process technology has reached the international advanced level, and the "extraction and rectification coupling to produce paraformaldehyde process" is the first in China
.
The successful development of this technology is of great practical significance
for improving the advanced level of polymethoxydimethyl ether technology in China.

Kerry Environmental Protection Technology Co.
, Ltd.
and Tianjin University have adopted the combination of production, education and research to carry out technical cooperation and developed a new process of anhydrous paraformaldehyde coupling; The key technology and process of coupling and strengthening of internals of the proprietary column for reaction extraction and rectification and the new dual-function modified resin catalyst were invented, and the complete set of technologies for DMMn from methanol formaldehyde was developed.
It overcomes the problems of low reaction efficiency, uneven gas-liquid distribution in the tower, difficult to control the reaction process, inaccurate simulation results, high process energy consumption, and low product economy in the existing production process, and the reaction conversion rate has been greatly improved compared with similar technologies in China, and the purity of the product is as high as 99wt.
% above, the key technology
of coupling and strengthening of methanol formaldehyde to polymethoxydimethyl ether process with independent intellectual property rights has been formed.
Now the preparation of DMMn complete sets of
technology packages with an annual output of 100,000 tons has been completed.