Synthesis method and device for rapidly producing lactide at high yield

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United States of America Patent

PATENT NO 11926608
APP PUB NO 20210188799A1
SERIAL NO

17249524

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Abstract

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The invention discloses a synthesis method and device for rapidly producing lactide at high yield. The method comprises: adding a single component of lactic acid or two components of lactic acid and catalyst, passing the mixture through a mixer to enter an oligomer preparation system, increasing a residence time through bottom circulation, synthesizing oligomeric lactic acid, and passing a gas-phase component through a rectification system. With the adoption of the device, the lactide is capable of being efficiently synthesized, crude lactide with a yield of 94% to 98% is capable of being obtained.

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Patent Owner(s)

Patent OwnerAddress
NANJING UNIVERSITYNO 163 XIANLIN AVENUE QIXIA DISTRICT NANJING JIANGSU 210023 210023
NANJING QUANKAI RESEARCH INSTITUTE OF BIOMATERIALS CO LTDNO 88 GUANQU SOUTH ROAD JIANGBEI NEW DISTRICT NANJING 210000

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Huang, Wei Nanjing, CN 1002 7727
Jiang, Wei Nanjing, CN 488 4380
Li, Aimin Nanjing, CN 45 71
Qi, Yunbiao Nanjing, CN 1 0
Sun, Ping Nanjing, CN 61 250
Zhang, Quanxing Nanjing, CN 14 16

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