GB202102966D0 - Synthesis method and device for rapidly producing lactide at high yield - Google Patents

Synthesis method and device for rapidly producing lactide at high yield

Info

Publication number
GB202102966D0
GB202102966D0 GBGB2102966.5A GB202102966A GB202102966D0 GB 202102966 D0 GB202102966 D0 GB 202102966D0 GB 202102966 A GB202102966 A GB 202102966A GB 202102966 D0 GB202102966 D0 GB 202102966D0
Authority
GB
United Kingdom
Prior art keywords
high yield
synthesis method
rapidly producing
producing lactide
lactide
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
GBGB2102966.5A
Other versions
GB2591038B (en
GB2591038A (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nanjing University
Nanjing Quankai Research Institute of Biomaterials Co Ltd
Original Assignee
Nanjing University
Nanjing Quankai Research Institute of Biomaterials Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nanjing University, Nanjing Quankai Research Institute of Biomaterials Co Ltd filed Critical Nanjing University
Publication of GB202102966D0 publication Critical patent/GB202102966D0/en
Publication of GB2591038A publication Critical patent/GB2591038A/en
Application granted granted Critical
Publication of GB2591038B publication Critical patent/GB2591038B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
    • C08G63/02—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds
    • C08G63/06—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from hydroxycarboxylic acids
    • C08G63/08—Lactones or lactides
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D319/00—Heterocyclic compounds containing six-membered rings having two oxygen atoms as the only ring hetero atoms
    • C07D319/10—1,4-Dioxanes; Hydrogenated 1,4-dioxanes
    • C07D319/12—1,4-Dioxanes; Hydrogenated 1,4-dioxanes not condensed with other rings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/0006—Controlling or regulating processes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/0006—Controlling or regulating processes
    • B01J19/0013—Controlling the temperature of the process
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J3/00—Processes of utilising sub-atmospheric or super-atmospheric pressure to effect chemical or physical change of matter; Apparatus therefor
    • B01J3/006—Processes utilising sub-atmospheric pressure; Apparatus therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
    • B01J8/0015—Feeding of the particles in the reactor; Evacuation of the particles out of the reactor
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J11/00—Recovery or working-up of waste materials
    • C08J11/04—Recovery or working-up of waste materials of polymers
    • C08J11/10—Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J11/00—Recovery or working-up of waste materials
    • C08J11/04—Recovery or working-up of waste materials of polymers
    • C08J11/10—Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation
    • C08J11/12—Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation by dry-heat treatment only
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2208/00—Processes carried out in the presence of solid particles; Reactors therefor
    • B01J2208/00008—Controlling the process
    • B01J2208/00017—Controlling the temperature
    • B01J2208/00106—Controlling the temperature by indirect heat exchange
    • B01J2208/00115—Controlling the temperature by indirect heat exchange with heat exchange elements inside the bed of solid particles
    • B01J2208/00132—Tubes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2208/00—Processes carried out in the presence of solid particles; Reactors therefor
    • B01J2208/00008—Controlling the process
    • B01J2208/00017—Controlling the temperature
    • B01J2208/00106—Controlling the temperature by indirect heat exchange
    • B01J2208/00115—Controlling the temperature by indirect heat exchange with heat exchange elements inside the bed of solid particles
    • B01J2208/0015—Plates; Cylinders

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Polyesters Or Polycarbonates (AREA)
  • Heterocyclic Compounds That Contain Two Or More Ring Oxygen Atoms (AREA)
GB2102966.5A 2020-01-16 2021-03-03 Synthesis method and device for rapidly producing lactide at high yield Active GB2591038B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010045269.7A CN111153886B (en) 2020-01-16 2020-01-16 Lactide synthesis method and device

Publications (3)

Publication Number Publication Date
GB202102966D0 true GB202102966D0 (en) 2021-04-14
GB2591038A GB2591038A (en) 2021-07-14
GB2591038B GB2591038B (en) 2022-09-07

Family

ID=70563161

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2102966.5A Active GB2591038B (en) 2020-01-16 2021-03-03 Synthesis method and device for rapidly producing lactide at high yield

Country Status (2)

Country Link
CN (1) CN111153886B (en)
GB (1) GB2591038B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114471438A (en) * 2022-02-18 2022-05-13 华陆工程科技有限责任公司 Reaction device and method for industrial preparation of lactide

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112480063A (en) * 2020-11-28 2021-03-12 万华化学(四川)有限公司 Reaction process for preparing low-acid-content lactide
CN112480064A (en) * 2020-12-21 2021-03-12 天津科技大学 Method for synthesizing lactide through back-pack type continuous rectification
CN112679464B (en) * 2021-01-18 2023-05-30 万华化学(四川)有限公司 Method for preparing lactide in high yield
WO2022155762A1 (en) * 2021-01-19 2022-07-28 万华化学(四川)有限公司 Preparation method for lactide and reaction device
CN112876453A (en) * 2021-01-29 2021-06-01 南京华基塔业有限公司 Reaction system and method for preparing lactide from lactic acid
CN112933630A (en) * 2021-01-29 2021-06-11 南京华基塔业有限公司 Intelligent micro-interface reaction system and method for preparing lactide from lactic acid
CN112898266B (en) * 2021-01-29 2021-11-19 安徽丰原生物技术股份有限公司 Device and method for industrially preparing L-lactide
CN113651794B (en) * 2021-09-15 2022-08-02 珠海格力新材料有限公司 Lactide synthesis method
CN116063271B (en) * 2021-10-31 2024-05-31 中国石油化工股份有限公司 Method for preparing lactide from high molecular weight lactic acid oligomer
CN116063270B (en) 2021-10-31 2024-08-06 中国石油化工股份有限公司 Method and system for continuously preparing lactide through step control
CN115677649B (en) * 2022-11-16 2024-02-13 寿光金远东变性淀粉有限公司 Method for efficiently preparing and purifying lactide

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4075089B2 (en) * 1996-12-09 2008-04-16 トヨタ自動車株式会社 Method for producing lactide
CN1284779C (en) * 2004-07-13 2006-11-15 武汉大学 Process for continuous preparation of lactide
JP5098233B2 (en) * 2006-06-30 2012-12-12 株式会社日立プラントテクノロジー Polyhydroxycarboxylic acid synthesis method and apparatus
JP4427571B2 (en) * 2007-11-07 2010-03-10 株式会社日立プラントテクノロジー Apparatus and method for polymer synthesis
JP5459974B2 (en) * 2008-04-11 2014-04-02 株式会社日立製作所 Method and apparatus for producing purified lactic acid cyclic dimer, and method and apparatus for producing polylactic acid
JP5077170B2 (en) * 2008-09-22 2012-11-21 株式会社日立プラントテクノロジー Process for producing polyhydroxycarboxylic acid
JP2012097224A (en) * 2010-11-04 2012-05-24 Hitachi Plant Technologies Ltd Manufacturing apparatus for and manufacturing method for polyhydroxycarboxylic acid
CN102766132B (en) * 2012-08-14 2015-08-19 北京普利玛科技有限责任公司 A kind of method of continuous production rac-Lactide
KR101486213B1 (en) * 2013-11-26 2015-01-26 한국화학연구원 Manufacturing method for lactide using a tube bundle falling film reactor and an agitated thin film reactor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114471438A (en) * 2022-02-18 2022-05-13 华陆工程科技有限责任公司 Reaction device and method for industrial preparation of lactide
CN114471438B (en) * 2022-02-18 2023-08-25 华陆工程科技有限责任公司 Reaction device and method for industrially preparing lactide

Also Published As

Publication number Publication date
CN111153886B (en) 2021-03-16
CN111153886A (en) 2020-05-15
GB2591038B (en) 2022-09-07
GB2591038A (en) 2021-07-14

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