CN107400228A - A kind of change system and its method of work for producing PEPA - Google Patents
A kind of change system and its method of work for producing PEPA Download PDFInfo
- Publication number
- CN107400228A CN107400228A CN201710601361.5A CN201710601361A CN107400228A CN 107400228 A CN107400228 A CN 107400228A CN 201710601361 A CN201710601361 A CN 201710601361A CN 107400228 A CN107400228 A CN 107400228A
- Authority
- CN
- China
- Prior art keywords
- adipic acid
- nitrogen
- batching kettle
- pepa
- finished product
- 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
Links
- GTACSIONMHMRPD-UHFFFAOYSA-N 2-[4-[2-(benzenesulfonamido)ethylsulfanyl]-2,6-difluorophenoxy]acetamide Chemical compound C1=C(F)C(OCC(=O)N)=C(F)C=C1SCCNS(=O)(=O)C1=CC=CC=C1 GTACSIONMHMRPD-UHFFFAOYSA-N 0.000 title claims abstract description 27
- 101710130081 Aspergillopepsin-1 Proteins 0.000 title claims abstract description 27
- 102100031007 Cytosolic non-specific dipeptidase Human genes 0.000 title claims abstract description 27
- 230000008859 change Effects 0.000 title claims abstract description 23
- 238000000034 method Methods 0.000 title claims abstract description 13
- WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid Chemical compound OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 claims abstract description 86
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 71
- 235000011037 adipic acid Nutrition 0.000 claims abstract description 44
- 239000001361 adipic acid Substances 0.000 claims abstract description 44
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 36
- 230000005540 biological transmission Effects 0.000 claims abstract description 13
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 12
- AVNFTTFOKCOKRE-UHFFFAOYSA-N [N].C(CCCCC(=O)O)(=O)O Chemical compound [N].C(CCCCC(=O)O)(=O)O AVNFTTFOKCOKRE-UHFFFAOYSA-N 0.000 claims abstract description 12
- 238000003860 storage Methods 0.000 claims abstract description 8
- 238000004806 packaging method and process Methods 0.000 claims abstract description 5
- 238000005303 weighing Methods 0.000 claims description 8
- 230000008569 process Effects 0.000 claims description 5
- 150000001875 compounds Chemical class 0.000 claims description 3
- 230000008901 benefit Effects 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 description 11
- 229920002635 polyurethane Polymers 0.000 description 4
- 239000004814 polyurethane Substances 0.000 description 4
- 239000000428 dust Substances 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 229920005906 polyester polyol Polymers 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 150000001991 dicarboxylic acids Chemical class 0.000 description 1
- 150000002009 diols Chemical class 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 125000004185 ester group Chemical group 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 239000010985 leather Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 229920005862 polyol Polymers 0.000 description 1
- 229920003225 polyurethane elastomer Polymers 0.000 description 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- -1 small molecule polyol Chemical class 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
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
- C08G63/78—Preparation processes
- C08G63/785—Preparation processes characterised by the apparatus used
-
- 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
- C08G63/12—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from polycarboxylic acids and polyhydroxy compounds
-
- 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
- C08G63/88—Post-polymerisation treatment
- C08G63/90—Purification; Drying
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Polyesters Or Polycarbonates (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
It is a kind of to produce the change system and its method of work of PEPA, including nitrogen circulating system, auger conveyor, batching kettle, reactor and the finished product storage tank being sequentially connected, the batching kettle be also connected with alcohol measuring tank and vacuum system；Nitrogen circulating system includes adipic acid nitrogen system, adipic acid finished product pneumatic transmission system, triple valve, buffer bin and the nitrogen fine filter being sequentially connected, wherein described nitrogen fine filter is also connected with adipic acid nitrogen system, the adipic acid finished product pneumatic transmission system and triple valve are connected with adipic acid packaging system, and sack cleaner is provided with the buffer bin.The present invention has the characteristics that safety, is applicable, and has popularization and practical value well, good economic benefit can be produced after extensive popularization and application.
Description
Technical field
The present invention relates to PEPA production field, more particularly to a kind of change system for producing PEPA and its
Method of work.
Background technology
PEPA is typically to be formed by Dicarboxylic Acids and small molecule polyol condensation.Because intramolecular contain it is more
Ester group, amino isopolarity group, cohesive strength and adhesive force are strong, have higher intensity, wearability.Aliphatic（Refer to more
Two acid polyesters）Polyester diol is used for producing casting type polyurethane elastomer, TPUE, microvoid polyurethane
Sole, PU leather resin, polyurethane adhesive, polyurethane ink and mill base, fabric coating etc..
Adipic acid passes through always in polyurethane shoe-sole stoste industry, the production process blending process of PEPA both at home and abroad
Cross driving lifting, artificial addition.This mode has that the amount of labour is big, and efficiency is low, and dust is more, equipment corrosion is serious, safety is hidden
To suffer from the shortcomings of more, such a interval feed way opens kettle cover addition and largely brings into the reactor such as debris, air because artificial simultaneously, and one
Determining degree reduces product quality.
The content of the invention
It is an object of the invention to provide a kind of change system and its method of work for producing PEPA, to solve existing
Production technology easily causes the technical problem of contamination of products；And solve existing production technology and be difficult to control, the technology of operating environment difference
Problem.
To achieve the above object, the present invention adopts the following technical scheme that：
A kind of change system for producing PEPA, it is characterised in that：Including nitrogen circulating system, the spiral transferring being sequentially connected
Device, batching kettle, reactor and finished product storage tank are sent, the batching kettle is also connected with alcohol measuring tank and vacuum system；
It is adipic acid nitrogen system that the nitrogen circulating system includes being sequentially connected, adipic acid finished product pneumatic transmission system, triple valve, slow
Slug storehouse and nitrogen fine filter, wherein the nitrogen fine filter is also connected with adipic acid nitrogen system.
It is further preferred that the adipic acid finished product pneumatic transmission system and triple valve are connected with adipic acid packaging system.
Further, it is provided with sack cleaner in the buffer bin.
Further, the adipic acid nitrogen system includes nitrogen supplementary device and adipic acid process units.
Further, it is provided with mixed liquor in batching kettle being extracted into reactor between the batching kettle and reactor and carries out instead
The mateiral pump answered.
Further, the dispensing temperature in the kettle is 102~110 DEG C, and interior pressure is 95-101Kpa.
Further, relaying blower fan is provided with the nitrogen fine filter.
In addition, pressure difference is 1-3Kpa in the buffer bin, Weighing apparatus which is provided with.
It is further preferred that the batching kettle is provided with batching kettle weighing system.
A kind of method of work for the change system for producing PEPA, it is characterised in that comprise the following steps：
Step 1, reactor is set：4-6 hour carries out batching sequence setting to reactor in advance；
Step 2, alcohol is added in batching kettle：Alcohol is measured according to formula and is added into batching kettle, pneumatic batching kettle stirs
Mix function；
Step 3, adipic acid is added in batching kettle：Triple valve is commutated, adipic acid finished product pneumatic transmission system is turned to buffering material
Storehouse, adipic acid and nitrogen enter in buffer bin, and wherein adipic acid is added to corresponding match somebody with somebody after auger conveyor conveys
Expect in kettle, start pressure in vacuum system control kettle during addition, nitrogen is via buffer bin and to adipic acid in pipeline
After cleaning, adipic acid nitrogen system is returned after being handled by nitrogen fine filter；
Step 4, start mateiral pump：Compound in batching kettle is extracted into corresponding reactor and reacted, it is defeated after the completion of reaction
Finished product storage tank is sent to, so far, a kind of change system work for producing PEPA of the present invention is completed.
Compared with prior art the invention has the characteristics that and beneficial effect：
The present invention is directly connected with adipic acid product production line, and without forklift transport, driving stock link, it is strong to reduce work
Spend, reduce production cost, improve production efficiency, effectively improve operating environment.The present invention realizes polyester polyols alcohol production
During adipic acid the dust of addition zero, no pollution, adipic acid production and the slitless connection of polyester polyols alcohol production, will safety and
Environmentally friendly hidden danger is preferably minimized.The present invention in PEPA production process raw material adipic acid from adipic acid finished product pneumatic transmission system to
The reactor of workshop, whole process are zero contact, zero leakage, controlled precisely（Weighing module is precisely controlled）, product quality
Effectively improve.Category is pioneering in international and national industry for this invention, is significant, state will be given using this invention
Family brings huge Social benefit and economic benefit.
The present invention has the characteristics that safety, is applicable, and has popularization and practical value well, can be produced after extensive popularization and application
Raw good economic benefit.
Brief description of the drawings
A kind of structural representation for the change system for producing PEPA of Fig. 1 positions present invention.
Reference：1- adipic acid nitrogen systems；2- adipic acid finished product pneumatic transmission systems；3- triple valves；4- buffer bins；5-
Auger conveyor；6- batching kettles；7- reactors；8- finished product storage tanks；9- alcohol measuring tanks；10- vacuum systems；11- nitrogen fine filters；
12- adipic acid packaging systems.
Embodiment
Technological means, character of innovation, reached purpose and effect to realize the present invention are easy to understand, below to this
Invention further illustrates.
The embodiment recorded herein is specific embodiment of the invention, for illustrating the design of the present invention,
It is explanatory and exemplary, should not be construed as the limitation to embodiment of the present invention and the scope of the invention.Except what is recorded herein
Outside embodiment, those skilled in the art can also be based on the application claims and specification disclosure of that using aobvious and
The other technical schemes being clear to, these technical schemes include any obvious using making for the embodiment to recording herein
The technical scheme of substitutions and modifications.
A kind of change system for producing PEPA, as shown in figure 1, including the nitrogen circulating system, the spiral shell that are sequentially connected
Rotation conveyer 5, batching kettle 6, reactor 7 and finished product storage tank 8, batching kettle 6 are also connected with alcohol measuring tank 9 and vacuum system 10, nitrogen
The gas circulatory system include be sequentially connected adipic acid nitrogen system 1, adipic acid finished product pneumatic transmission system 2, triple valve 3, buffer bin 4
With nitrogen fine filter 11, wherein the nitrogen fine filter 11 is also connected with adipic acid nitrogen system 1.Cloth is provided with buffer bin 4
Bag dust collector.Adipic acid finished product pneumatic transmission system 2 and triple valve 3 are connected with adipic acid packaging system 12.Adipic acid nitrogen system 1
Including nitrogen supplementary device and adipic acid process units.It is provided between batching kettle 6 and reactor 7 and takes out mixed liquor in batching kettle 6
The mateiral pump reacted into reactor 7, temperature is 102~110 DEG C in batching kettle 6, and interior pressure is 95-101Kpa, nitrogen
Relaying blower fan is provided with fine filter 11, pressure difference is 1-3Kpa in buffer bin 4, which is provided with Weighing apparatus, batching kettle 6 is provided with
Batching kettle weighing system.
A kind of method of work for the change system for producing PEPA, it is characterised in that comprise the following steps：
Step 1, reactor 7 is set：4-6 hour carries out batching sequence setting to reactor 7 in advance；
Step 2, alcohol is added in batching kettle 6：Alcohol is measured according to formula and is added into batching kettle 6, starts batching kettle 6
Agitating function after can according to reactor situation carry out adipic acid addition program setting, start；
Step 3, adipic acid is added in batching kettle 6：Triple valve 3 is commutated, adipic acid finished product pneumatic transmission system 2 is turned to buffering
Feed bin 4, adipic acid and nitrogen enter in buffer bin 4, and wherein adipic acid is added to correspondingly after the conveying of auger conveyor 5
Batching kettle 6 in, during addition start vacuum system 10 control kettle in pressure, nitrogen is via buffer bin 4 and to pipeline
After middle adipic acid cleaning, adipic acid nitrogen system 1 is returned after being handled by nitrogen fine filter 11；
Step 4, start mateiral pump：Compound in batching kettle 6 is extracted into corresponding reactor 7 and reacted, according to batching kettle
6 weighing systems are shown, after the adipic acid weight of needs reaches requirement, triple valve commutation adipic acid baling line, now nitrogen has been
Through being purged into batching kettle induction system, pipeline realizes that adipic acid in pipeline " zero " caches by nitrogen purging, reactor 7
Finished product storage tank 8 is transported to after the completion of interior reaction, so far, a kind of change system work for producing PEPA of the present invention is completed.
The foregoing is only presently preferred embodiments of the present invention, be not intended to limit the invention, it is all the present invention spirit and
Within principle, any modification, equivalent substitution and improvements made etc., it should be included in the scope of the protection.
Claims (10)
- A kind of 1. change system for producing PEPA, it is characterised in that：Including nitrogen circulating system, the spiral being sequentially connected Conveyer（5）, batching kettle（6）, reactor（7）And finished product storage tank（8）, the batching kettle（6）Also with alcohol measuring tank（9）And vacuum System（10）It is connected；The nitrogen circulating system includes the adipic acid nitrogen system being sequentially connected（1）, adipic acid finished product pneumatic transmission system（2）, three Port valve（3）, buffer bin（4）With nitrogen fine filter（11）, wherein the nitrogen fine filter（11）Also with adipic acid nitrogen system （1）It is connected.
- A kind of 2. change system for producing PEPA as claimed in claim 1, it is characterised in that：The adipic acid finished product Pneumatic transmission system（2）And triple valve（3）With adipic acid packaging system（12）It is connected.
- A kind of 3. change system for producing PEPA as claimed in claim 1, it is characterised in that：The buffer bin （4）It is interior to be provided with sack cleaner.
- A kind of 4. change system for producing PEPA as claimed in claim 1, it is characterised in that：The adipic acid nitrogen System（1）Including nitrogen supplementary device and adipic acid process units.
- A kind of 5. change system for producing PEPA as claimed in claim 1, it is characterised in that：The batching kettle（6） And reactor（7）Between be provided with batching kettle（6）Interior mixed liquor is extracted into reactor（7）The middle mateiral pump reacted.
- A kind of 6. change system for producing PEPA as claimed in claim 1, it is characterised in that：The batching kettle（6） Interior temperature is 102~110 DEG C, and interior pressure is 95-101Kpa.
- A kind of 7. change system for producing PEPA as claimed in claim 1, it is characterised in that：The nitrogen fine filter （11）It is interior to be provided with relaying blower fan.
- A kind of 8. change system for producing PEPA as claimed in claim 1, it is characterised in that：The buffer bin （4）Interior pressure difference is 1-3Kpa, which is provided with Weighing apparatus.
- A kind of 9. change system for producing PEPA as claimed in claim 1, it is characterised in that：The batching kettle（6） It is provided with batching kettle weighing system.
- 10. a kind of method of work of change system for producing PEPA as described in claim 1 ~ 9 any one, it is special Sign is, comprises the following steps：Step 1, reactor is set（7）：4-6 hour is to reactor in advance（7）Carry out batching sequence setting；Step 2, in batching kettle（6）Middle addition alcohol：Alcohol is measured according to formula and is added into batching kettle（6）, start dispensing Kettle（6）Agitating function；Step 3, in batching kettle（6）Middle addition adipic acid：By triple valve（3）Commutation, makes adipic acid finished product pneumatic transmission system（2）Turn To buffer bin（4）, adipic acid and nitrogen enter buffer bin（4）In, wherein adipic acid passes through auger conveyor（5）Conveying After be added to corresponding batching kettle（6）In, start vacuum system during addition（10）Pressure in kettle is controlled, nitrogen is via slow Slug storehouse（4）And after clearing up adipic acid in pipeline, pass through nitrogen fine filter（11）Adipic acid nitrogen system is returned after processing （1）；Step 4, start mateiral pump：By batching kettle（6）Middle compound is extracted into corresponding reactor（7）In reacted, reacted Finished product storage tank is transported to after（8）, so far, a kind of change system work for producing PEPA of the present invention is completed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710601361.5A CN107400228B (en) | 2017-07-21 | 2017-07-21 | Equipment system for producing polyester polyol and working method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710601361.5A CN107400228B (en) | 2017-07-21 | 2017-07-21 | Equipment system for producing polyester polyol and working method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107400228A true CN107400228A (en) | 2017-11-28 |
| CN107400228B CN107400228B (en) | 2023-05-16 |
Family
ID=60401088
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710601361.5A Active CN107400228B (en) | 2017-07-21 | 2017-07-21 | Equipment system for producing polyester polyol and working method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107400228B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109078598A (en) * | 2018-09-18 | 2018-12-25 | 重庆华峰化工有限公司 | Polyester polyol synthesis system and synthetic method |
| CN112646104A (en) * | 2020-12-30 | 2021-04-13 | 南通紫琅生物医药科技有限公司 | Preparation process of polyurethane resin |
Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2729618A (en) * | 1952-11-18 | 1956-01-03 | Bayer Ag | Isocyanate-modified polyesters reacted with glycols |
| JP2004051729A (en) * | 2002-07-18 | 2004-02-19 | Asahi Kasei Chemicals Corp | Process for producing shaped product of glycolic acid copolymer |
| JP2004067894A (en) * | 2002-08-07 | 2004-03-04 | Unitika Ltd | Biodegradable polyester resin composition, method for producing the same, and foam and molded product obtained therefrom |
| CN1723230A (en) * | 2003-01-22 | 2006-01-18 | 旭化成化学株式会社 | Polytrimethylene terephthalate resin and method for production thereof |
| KR20080105217A (en) * | 2007-05-30 | 2008-12-04 | 이창열 | Using black soybean bio-active skin of powder for the little crystal bio-active of anthocyanin powder manufacturing and equipment |
| WO2010035931A1 (en) * | 2008-09-23 | 2010-04-01 | 주식회사 스몰랩 | Method for producing poly(trimethylene terephthalate) |
| CN102775583A (en) * | 2012-08-02 | 2012-11-14 | 烟台万华超纤股份有限公司 | Hydrolysis-resistant polyester polyol and preparation process thereof |
| CN202687388U (en) * | 2012-07-18 | 2013-01-23 | 中国天辰工程有限公司 | Conveying system for industrial solid adipic acid |
| CN103694458A (en) * | 2013-12-11 | 2014-04-02 | 高鼎精细化工(昆山)有限公司 | Biology base polyester polyol well as preparation method and application thereof |
| CN203683736U (en) * | 2014-01-22 | 2014-07-02 | 淮安锦纶化纤有限公司 | Fusing and melting system capable of continuously conducting feeding |
| CN106633018A (en) * | 2016-12-30 | 2017-05-10 | 上海聚友化工有限公司 | Continuous production process and continuous production device for polyester polyol |
| CN106674495A (en) * | 2017-02-20 | 2017-05-17 | 浙江罗星实业有限公司 | Production technology of polyester polyol and production system for polyester polyol |
| CN106823793A (en) * | 2017-04-01 | 2017-06-13 | 平顶山市普恩科技有限公司 | A kind of removing means and removal methods of adipic acid nitrogen oxide in tail gas |
| CN206337204U (en) * | 2016-12-30 | 2017-07-18 | 上海聚友化工有限公司 | A kind of PEPA continuous production device |
| CN207091330U (en) * | 2017-07-21 | 2018-03-13 | 重庆华峰化工有限公司 | A kind of change system for producing PEPA |
-
2017
- 2017-07-21 CN CN201710601361.5A patent/CN107400228B/en active Active
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2729618A (en) * | 1952-11-18 | 1956-01-03 | Bayer Ag | Isocyanate-modified polyesters reacted with glycols |
| JP2004051729A (en) * | 2002-07-18 | 2004-02-19 | Asahi Kasei Chemicals Corp | Process for producing shaped product of glycolic acid copolymer |
| JP2004067894A (en) * | 2002-08-07 | 2004-03-04 | Unitika Ltd | Biodegradable polyester resin composition, method for producing the same, and foam and molded product obtained therefrom |
| CN1723230A (en) * | 2003-01-22 | 2006-01-18 | 旭化成化学株式会社 | Polytrimethylene terephthalate resin and method for production thereof |
| KR20080105217A (en) * | 2007-05-30 | 2008-12-04 | 이창열 | Using black soybean bio-active skin of powder for the little crystal bio-active of anthocyanin powder manufacturing and equipment |
| WO2010035931A1 (en) * | 2008-09-23 | 2010-04-01 | 주식회사 스몰랩 | Method for producing poly(trimethylene terephthalate) |
| CN202687388U (en) * | 2012-07-18 | 2013-01-23 | 中国天辰工程有限公司 | Conveying system for industrial solid adipic acid |
| CN102775583A (en) * | 2012-08-02 | 2012-11-14 | 烟台万华超纤股份有限公司 | Hydrolysis-resistant polyester polyol and preparation process thereof |
| CN103694458A (en) * | 2013-12-11 | 2014-04-02 | 高鼎精细化工(昆山)有限公司 | Biology base polyester polyol well as preparation method and application thereof |
| CN203683736U (en) * | 2014-01-22 | 2014-07-02 | 淮安锦纶化纤有限公司 | Fusing and melting system capable of continuously conducting feeding |
| CN106633018A (en) * | 2016-12-30 | 2017-05-10 | 上海聚友化工有限公司 | Continuous production process and continuous production device for polyester polyol |
| CN206337204U (en) * | 2016-12-30 | 2017-07-18 | 上海聚友化工有限公司 | A kind of PEPA continuous production device |
| CN106674495A (en) * | 2017-02-20 | 2017-05-17 | 浙江罗星实业有限公司 | Production technology of polyester polyol and production system for polyester polyol |
| CN106823793A (en) * | 2017-04-01 | 2017-06-13 | 平顶山市普恩科技有限公司 | A kind of removing means and removal methods of adipic acid nitrogen oxide in tail gas |
| CN207091330U (en) * | 2017-07-21 | 2018-03-13 | 重庆华峰化工有限公司 | A kind of change system for producing PEPA |
Non-Patent Citations (3)
| Title |
|---|
| RAMIN SHAMSI，等: "Novel polyester diol obtained from PET waste and its application in the synthesis of polyurethane and carbon nanotube-based composites: swelling behavior and characteristic properties", 《RSC ADV.》 * |
| 孔令丞，等: "《循环经济的合作模式与推进效果》", 31 October 2012, 复旦大学出版社 * |
| 蒋斌，等: "自动成栓技术在己二酸输送系统中的应用", 《化工设计》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109078598A (en) * | 2018-09-18 | 2018-12-25 | 重庆华峰化工有限公司 | Polyester polyol synthesis system and synthetic method |
| CN112646104A (en) * | 2020-12-30 | 2021-04-13 | 南通紫琅生物医药科技有限公司 | Preparation process of polyurethane resin |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107400228B (en) | 2023-05-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107400228A (en) | A kind of change system and its method of work for producing PEPA | |
| CN207091330U (en) | A kind of change system for producing PEPA | |
| CN114891596A (en) | Bacillus subtilis microbial fertilizer fermentation culture production device and method | |
| CN213057751U (en) | Automatic granular material filling system | |
| CN110353195A (en) | A kind of Intelligent Production System of salted egg | |
| CN209383684U (en) | A kind of device of aromatic polyester polyol synthesis | |
| CN216862948U (en) | Super long distance material malleation conveying system device | |
| CN206317239U (en) | A kind of land plaster quantitative filling mixing plant | |
| CN217554062U (en) | AGV intelligent trolley for carbon production and control system thereof | |
| CN109096474A (en) | A kind of device and technique of aromatic polyester polyol synthesis | |
| CN211868223U (en) | Discharging mechanism of water stemming stirring machine | |
| CN215428702U (en) | Ketoxime-removing type transparent silicone sealant continuous production device | |
| CN108299321A (en) | A kind of cyanuric acid intelligence production cycle assembly line | |
| CN219463886U (en) | Chemical raw material packaging bag surface gluing equipment | |
| CN219811202U (en) | Metering device of bagged material box type automatic loading machine | |
| CN111231143A (en) | Blowing is raw materials mixing conveyor for automatic blending | |
| CN220386504U (en) | Oxygen release agent production system | |
| CN218860701U (en) | Lactobacillus fermentation equipment convenient to intermittent type formula sample | |
| CN220519607U (en) | Powdery material transportation robot | |
| CN221314959U (en) | Injection molding machine with logistics transmission function | |
| CN207169649U (en) | A kind of adipic acid slurry delivery system | |
| CN208812532U (en) | A kind of inflation film manufacturing machine material mixing-storing transportation system | |
| CN219688497U (en) | Metering feeding structure | |
| CN207430126U (en) | A kind of efficient anaerobic adhesive preparation facilities | |
| CN218617235U (en) | Powder packaging machine with connected storage bin |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20231220 Address after: 200120 3rd floor, building 16, 2555 xiupu Road, Pudong New Area, Shanghai Patentee after: Huafeng Group Shanghai Engineering Co.,Ltd. Patentee after: CHONGQING HUAFON CHEMICAL CO.,LTD. Address before: 408000 Huafeng Industrial Park, Baitao Chemical Park, Fuling District, Chongqing Patentee before: CHONGQING HUAFON CHEMICAL CO.,LTD. |
|
| TR01 | Transfer of patent right |