PL419991A1 - Method for producing liquid epoxy resins - Google Patents
Method for producing liquid epoxy resinsInfo
- Publication number
- PL419991A1 PL419991A1 PL419991A PL41999116A PL419991A1 PL 419991 A1 PL419991 A1 PL 419991A1 PL 419991 A PL419991 A PL 419991A PL 41999116 A PL41999116 A PL 41999116A PL 419991 A1 PL419991 A1 PL 419991A1
- Authority
- PL
- Poland
- Prior art keywords
- carried out
- bisphenol
- temperature
- water
- hours
- Prior art date
Links
- 239000004850 liquid epoxy resins (LERs) Substances 0.000 title abstract 2
- 238000004519 manufacturing process Methods 0.000 title 1
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 abstract 12
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 abstract 9
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 abstract 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 6
- PXKLMJQFEQBVLD-UHFFFAOYSA-N bisphenol F Chemical compound C1=CC(O)=CC=C1CC1=CC=C(O)C=C1 PXKLMJQFEQBVLD-UHFFFAOYSA-N 0.000 abstract 4
- 238000007033 dehydrochlorination reaction Methods 0.000 abstract 4
- 239000011347 resin Substances 0.000 abstract 4
- 229920005989 resin Polymers 0.000 abstract 4
- 229930185605 Bisphenol Natural products 0.000 abstract 3
- BRLQWZUYTZBJKN-UHFFFAOYSA-N Epichlorohydrin Chemical compound ClCC1CO1 BRLQWZUYTZBJKN-UHFFFAOYSA-N 0.000 abstract 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 abstract 3
- 238000004821 distillation Methods 0.000 abstract 2
- 238000000034 method Methods 0.000 abstract 2
- 239000012044 organic layer Substances 0.000 abstract 2
- 239000002904 solvent Substances 0.000 abstract 2
- 239000010409 thin film Substances 0.000 abstract 2
- 238000005406 washing Methods 0.000 abstract 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 abstract 1
- 239000012267 brine Substances 0.000 abstract 1
- 239000000460 chlorine Substances 0.000 abstract 1
- 229910052801 chlorine Inorganic materials 0.000 abstract 1
- 230000003301 hydrolyzing effect Effects 0.000 abstract 1
- 239000010410 layer Substances 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 239000011541 reaction mixture Substances 0.000 abstract 1
- 238000000926 separation method Methods 0.000 abstract 1
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 abstract 1
- 239000000243 solution Substances 0.000 abstract 1
Landscapes
- Epoxy Compounds (AREA)
- Epoxy Resins (AREA)
Abstract
Przedmiotem zgłoszenia jest sposób otrzymywania ciekłych żywic epoksydowych, który polega na tym, że proces prowadzi się wieloetapowo: etap addycji bisfenolu A lub bisfenolu F lub mieszaniny bisfenolu A i bisfenolu F i epichlorohydryny, w środowisku alkoholu izopropylowego i wody, prowadzi się w obecności 0,02 - 035 mola wodorotlenku sodu na 1 mol bisfenolu, w temperaturze 55 - 65°C, w czasie 1 - 4 godzin, przy stosunku molowym bisfenol : epichlorohydryna : alkohol izopropylowy : woda jak 1 : 3-9,5 :1-3,5 : 0,4-6, etap dehydrochlorowania prowadzi się w obecności 1,3-1,95 mol wodorotlenku sodu na 1 mol bisfenolu, w temperaturze 50-60°C w czasie 1-3,5 godziny, po czym mieszaninę reakcyjną wygrzewa się jeszcze w tej temperaturze przez 0,25-2 godziny, etap destylacji warstwy organicznej, po oddzieleniu solanki, prowadzi się w 3-topniowym układzie wyparek cienkowarstwowych, usuwając nieprzereagowaną epichlorohydrynę, alkohol izopropylowy i wodę w temperaturze końcowej 135 - 145°C pod ciśnieniem końcowym 70 - 80 kPa, etap drugiego dehydrochlorowania surowej żywicy prowadzi się w temperaturze 40 - 60°C w czasie 1 - 3 godzin, z użyciem 1 - 3 moli wodorotlenku sodu w przeliczeniu na 1 mol chloru hydrolizującego w żywicy, w obecności 30 - 80% rozpuszczalników w odniesieniu do masy żywicy, zawierających 50 - 100% toluenu, 0 - 50% alkoholu izopropylowego i 0 - 50% wody, etap przemywania roztworu żywicy gorącą wodą prowadzi się w temperaturze 60 - 80°C, etap destylacji warstwy organicznej, po oddzieleniu warstwy wodnej, prowadzi się w 3-stopniowym układzie wyparek cienkowarstwowych, usuwając rozpuszczalniki i wodę w temperaturze końcowej 165 - 175°C pod ciśnieniem końcowym 1 - 10 kPa, przy czym etap addycji, etap dehydrochlorowania, etap drugiego dehydrochlorowania i etap przemywania prowadzi się w reaktorze wyposażonym w minimum trzy mieszadła łopatkowe o czterech łopatkach w każdym mieszadle, osadzone na wspólnym wale.The subject of the application is the method of obtaining liquid epoxy resins, which consists in the fact that the process is carried out in several stages: the step of adding bisphenol A or bisphenol F or a mixture of bisphenol A and bisphenol F and epichlorohydrin, in the environment of isopropyl alcohol and water, is carried out in the presence of 0, 02 - 035 moles of sodium hydroxide per 1 mole of bisphenol, at a temperature of 55 - 65 ° C, for 1 - 4 hours, at a mole ratio of bisphenol: epichlorohydrin: isopropyl alcohol: water as 1: 3-9.5: 1-3, 5: 0.4-6, the dehydrochlorination step is carried out in the presence of 1.3-1.95 moles sodium hydroxide per 1 mole bisphenol, at a temperature of 50-60 ° C for 1-3.5 hours, after which the reaction mixture is heated still at this temperature for 0.25-2 hours, the distillation stage of the organic layer, after separating the brine, is carried out in a 3-stage thin-film evaporator system, removing unreacted epichlorohydrin, isopropyl alcohol and water at the final temperature j 135 - 145 ° C at a final pressure of 70 - 80 kPa, the second dehydrochlorination step of the crude resin is carried out at a temperature of 40 - 60 ° C for 1-3 hours, using 1-3 moles of sodium hydroxide per 1 mole of hydrolyzing chlorine in resin, in the presence of 30 - 80% solvents based on the weight of the resin, containing 50 - 100% toluene, 0 - 50% isopropyl alcohol and 0 - 50% water, the step of washing the resin solution with hot water is carried out at a temperature of 60 - 80 ° C, the distillation stage of the organic layer, after separation of the aqueous layer, is carried out in a 3-stage thin-film evaporator system, removing solvents and water at a final temperature of 165 - 175 ° C at a final pressure of 1 - 10 kPa, with the addition step, dehydrochlorination step, the second dehydrochlorination step and the washing step are carried out in a reactor equipped with a minimum of three paddle mixers with four blades in each mixer, mounted on a common shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL419991A PL231788B1 (en) | 2016-12-27 | 2016-12-27 | Method for producing liquid epoxy resins |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL419991A PL231788B1 (en) | 2016-12-27 | 2016-12-27 | Method for producing liquid epoxy resins |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| PL419991A1 true PL419991A1 (en) | 2018-07-02 |
| PL231788B1 PL231788B1 (en) | 2019-04-30 |
Family
ID=62705304
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PL419991A PL231788B1 (en) | 2016-12-27 | 2016-12-27 | Method for producing liquid epoxy resins |
Country Status (1)
| Country | Link |
|---|---|
| PL (1) | PL231788B1 (en) |
-
2016
- 2016-12-27 PL PL419991A patent/PL231788B1/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| PL231788B1 (en) | 2019-04-30 |
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