Title:
SYSTEM FOR PRODUCING PBS-BASED BIODEGRADABLE MATERIAL
Document Type and Number:
WIPO Patent Application WO/2021/244193
Kind Code:
A1
Abstract:
Disclosed is a system for producing a PBS-based biodegradable material, the system comprising esterification reaction kettles. The esterification reaction kettles include esterification kettle A (3a), esterification kettle B (3b) and a second esterification kettle (4). A slurry inlet at the top of esterification kettle A (3a) is connected to a discharge port of slurry formulation tank I (2a), a top inlet of slurry formulation tank I (2a) is connected to a discharge port of slurry compounding tank I (1a), and the top of slurry compounding tank I (1a) is connected to a BDO feed pipe (G0) and is provided with a PTA charging port (1a1). A slurry inlet at the top of esterification kettle B (3b) is connected to a discharge port of slurry formulation tank II (2b), a top inlet of slurry formulation tank II (2b) is connected to a discharge port of slurry compounding tank II (1b), and the top of slurry compounding tank II (1b) is connected to a BDO feed pipe (G0) and is provided with a binary acid charging port (1b1). A discharge port of esterification kettle A (3a) and a discharge port of esterification kettle B (3b) are respectively connected to a feeding port of the second esterification kettle (4); a discharge port of the second esterification kettle (4) is connected to a feeding port of a first condensation kettle (5) via an esterification material pump (B1); a discharge port of the first condensation kettle (5) is connected to a feeding port of a second condensation kettle (6) via a first condensation material pump (B2); a discharge port of the second condensation kettle (6) is connected to a feeding port of a final condensation reaction kettle (7) via a second condensation material pump (B3); and a discharge port of the final condensation reaction kettle (7) is connected to a feeding port of a tackifying reaction kettle (8) via a melt delivery pump (B4).
Inventors:
WANG YOUCHAO (CN)
TAO JIAHONG (CN)
TAO JIAHONG (CN)
Application Number:
PCT/CN2021/090468
Publication Date:
December 09, 2021
Filing Date:
April 28, 2021
Export Citation:
Assignee:
OERLIKON BARMAG HUITONG YANGZHOU ENG CO LTD (CN)
International Classes:
B01F13/10; B01J19/00; B01J19/18; B07B1/04; B29B9/02; B29B9/16; C08G63/78; F26B17/12; F26B21/00
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Attorney, Agent or Firm:
NANJING SUKE PATENT AGENT LIMITED LIABILITY COMPANY (CN)
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