CS270897B1 - Method of mixed triarylphosphates preparation - Google Patents

Method of mixed triarylphosphates preparation Download PDF

Info

Publication number
CS270897B1
CS270897B1 CS89832A CS83289A CS270897B1 CS 270897 B1 CS270897 B1 CS 270897B1 CS 89832 A CS89832 A CS 89832A CS 83289 A CS83289 A CS 83289A CS 270897 B1 CS270897 B1 CS 270897B1
Authority
CS
Czechoslovakia
Prior art keywords
weight
phenol
mixture
mass
reaction
Prior art date
Application number
CS89832A
Other languages
Czech (cs)
Slovak (sk)
Other versions
CS83289A1 (en
Inventor
Miroslav Ing Csc Magura
Mikulas Ing Zedenyi
Mikulas Ing Collak
Andrej Ing Skuba
Alexandr Andil
Jan Ing Csc Vojtko
Original Assignee
Miroslav Ing Csc Magura
Zedenyi Mikulas
Collak Mikulas
Skuba Andrej
Alexandr Andil
Vojtko Jan
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 Miroslav Ing Csc Magura, Zedenyi Mikulas, Collak Mikulas, Skuba Andrej, Alexandr Andil, Vojtko Jan filed Critical Miroslav Ing Csc Magura
Priority to CS89832A priority Critical patent/CS270897B1/en
Publication of CS83289A1 publication Critical patent/CS83289A1/en
Publication of CS270897B1 publication Critical patent/CS270897B1/en

Links

Abstract

An esterification of the mix of phenols is described, containing 30 to 50 mass % of monoisopropylphenols, 2 to 10 mass % of diisopropylphenol, between 0.2 and 2 mass % of triisopropylphenols and 30 to 70 mass % of phenol with phosphoryl (tri)chloride in a discontinued and a continued manner originated by a cascade of through-flow mixed reactors with a range of temperatures between 80 to 180 degrees Celsius. This method of esterification is possible to be applied in the organic technology when preparing mixed triaryl phosphates with a wide range of applications utilising the properties of individual isomers and/or mixes.

Description

(57) Je popísaná esterifikácia zmesi fenolov, obsahujúcej 30 až 50 % hmot, monoizopropylfenolov, 2 až.10 % hmot, diisopropylfenolov, 0,2 až 2 % hmot, triizopropyl-. fenolov a 30 až 70 % hmot· fenolu s oxychloridom fosforečným diskontinuálnym a kontinuálnym spbsobom tvořeným kaskádou prietokových miešaných reaktorov s róznou teplotou od 80 do 180 °C.(57) The esterification of a mixture of phenols containing 30 to 50% by weight, monoisopropylphenols, 2 to 10% by weight, diisopropylphenols, 0.2 to 2% by weight, triisopropyl- is described. of phenols and 30 to 70% by weight of phenol with phosphorus oxychloride in a batch and continuous manner consisting of a cascade of flow stirred reactors with a different temperature of from 80 to 180 ° C.

Tento sposob eeterifikác^e je možné uplatni ť v organickej technologii pri přípravě i zmesných triarylfosfátov so širokými možnostem! uplatnenia в využitím vlastnosti jednotlivých .izomerov, alebo ich zmesi<This method of etherification can be applied in organic technology in the preparation of mixed triaryl phosphates with a wide range of possibilities. application in the use of properties of individual isomers, or mixtures thereof

270 897270 897

(11) (11) (13) (13) B1 B1 (51) (51) Int. Cl. 5 C 07 F 9/28Int. Cl. 5 C 07 F 9/28

Sposob přípravy zmesných triarylfosfátov vznikajúcich esterifikáciou oxychloridu fosforečného s fenolom a izopropylfenolmi za katalytického účinku kovového horčíka, alebo jeho zlúčenin. Zmes alkylfenolov sa připraví alkyláciou fenolu propánom tak, že v alkylačnej zmesi je 30 až 40 % hmotnostných izopropylfenolov a 60 až 70 % hmotnostných fenolu. Získaný triarylfosfát sa následné spracuváva destiláciou, rek-» „ tifikáciou a extrakciou, kde sa odstránia nezreagované fenoly, nežiadúce esterifikačné produkty a katalyzátor. Takto sa získá produkt o požadovaných fyzikálno-chemických vla8tnostiach. *Process for preparing mixed triaryl phosphates formed by esterification of phosphorus oxychloride with phenol and isopropylphenols under the catalytic action of magnesium metal or its compounds. The alkylphenol mixture is prepared by alkylating phenol with propane such that the alkylation mixture contains 30 to 40% by weight of isopropylphenols and 60 to 70% by weight of phenol. The triaryl phosphate obtained is subsequently treated by distillation, recrystallization and extraction to remove unreacted phenols, unwanted esterification products and catalyst. A product of the desired physico-chemical properties is thus obtained. *

Příprava zmesných triarylfosfátov je popísaná například v US patentoch 1 858 659,The preparation of mixed triaryl phosphates is described, for example, in U.S. Patents 1,858,659,

840 325, 2 851 476, 2 931 823 a v československých autorských osvedčeniach 186 971,840 325, 2 851 476, 2 931 823 and in Czechoslovak author certificates 186 971,

230 995, 233 262 a 260 173. ·230 995, 233 262 and 260 173. ·

Vyššie uvedené spísoby přípravy sú odlišné a uvádzajú iný technologický postup a zloženie strojno-technologického zariadenia, sú náročné na spotřebu energií, pričom sú značné straty materiálu v technologickom procese.The above preparation methods are different and indicate a different technological process and composition of the machinery, are energy-intensive, with considerable material losses in the technological process.

Podlá uvedených patentov sa výroba uskutoČnovala tak, Že sa fenol alkyloval propanem za použitia aktivovanej bieliacej hlinky kyselinou fosforečnou ako katalyzátora na zmes fenolu a izopropylfenolov,· v ktorých převažoval 2-izopropylfenol. Táto zmes sa rektifikovala, kde sa oddělil nezreagovaný fenol, tak aby ho bolo v zmesi pod 20 % hmotnostných. Takáto alkylačná zmes sa esterifikovala pri teplote 150-160 °C 8 POCly Po doreagovaní sa do reakčnej zmesi přidal čistý fenol a reakcia sa dokončila za vzniku zmesných. triarylfosfátov, kde obsah trifenylfosfátu bol pod 35 % hmotnostných.According to the above patents, production was carried out by phenol alkylation of propane using activated phosphoric clay with phosphoric acid as a catalyst to a mixture of phenol and isopropylphenols, in which 2-isopropylphenol predominated. This mixture was rectified where unreacted phenol was separated so that it was below 20% by weight in the mixture. Such an alkylation mixture was esterified at 150-160 ° C. 8 POCly After the reaction was complete, pure phenol was added to the reaction mixture and the reaction was complete to give a mixture. triarylphosphates wherein the triphenylphosphate content was below 35% by weight.

Podstatou sposobu výroby zmesných triarylfosfátov podlá vynálezu je, Že sa připraví alkylačná zmes fenolu, 30 až 50 % hmot, izopropylfenolov, 2 až 10 % hmot. 2,4- a 2,6-diizopropylfenolov a 0,2 až 2 % hmot, triizopropylfenolu alkyláciou fenolu s propénom. Uvedená reakčná zmes sa neupravuje destiláciou na odstránenie nezreagovaného fenolu, ale táto pri celkovom obsahu fenolu 30 až 70 % hmotnostných fenolu 8 výhodou 60 % sa priamo esterifikuje s oxychloridom fosforečným tak, že molárny poměr fenolov ku POClj je rovný 1 ku 3—3,5. Uvedené fenoly sa vyhrejú na teplotu 80 °C až 100 °C a postupné sa do tejto zmesi nadávkuje katalyzátor a hořčík alebo jeho zlúčeniny a oxychlorid fosforečný. Teplota reaktora sa zvyšuje na 160 - 180 °C. Při teplote do 120 °C zreaguje fenol, 2-izopropylfenol a 2,4-diizopropylfenol. V Salšom stupni pri zvýšení teploty na 150-160 °C doreaguje predovšetkým 2-izopropylfenol, nakolřko ostatně zložky už v reakčnej zmeBi nie sú přítomné a 2-izopropylfenol reaguje | s třetím chlorom z POCl^ na zmesný triarylfosfát o požadovaných fyzikálno-chemických vlastnostiach. Po skončení reakcie sa reakčná zmes vyfúka suchým dusíkom, aby sa z nej odstránil rozpuštěný chlorovodík. To sa prevádza pri 160 - 180 °C. ’The process according to the invention is based on the preparation of an alkylation mixture of phenol, 30 to 50 wt.%, Isopropylphenols, 2 to 10 wt. 2,4- and 2,6-diisopropylphenols and 0.2 to 2% by weight of triisopropylphenol by alkylation of phenol with propene. Said reaction mixture is not treated by distillation to remove unreacted phenol, but at a total phenol content of 30 to 70% by weight of phenol 8, preferably 60%, it is directly esterified with phosphorus oxychloride so that the molar ratio of phenols to POCl 3 is equal to 1 to 3 - 3,5 . Said phenols are heated to a temperature of 80 ° C to 100 ° C and the catalyst and magnesium or its compounds and phosphorus oxychloride are gradually added to this mixture. The temperature of the reactor is raised to 160-180 ° C. Up to 120 ° C phenol, 2-isopropylphenol and 2,4-diisopropylphenol are reacted. The salsa step of increasing the temperature to 150-160 ° C to complete the reaction in particular, 2-isopropylphenol, co Nakol ° the other components already in the reaction are present zmeBi and 2-isopropylphenol treated | with third chlorine from POCl 2 to a mixed triaryl phosphate having the desired physicochemical properties. After completion of the reaction, the reaction mixture is blown with dry nitrogen to remove dissolved hydrogen chloride. This is carried out at 160-180 ° C. '

Unikajúce odplyny sú chladené a skondenzované produkty (POCl^ a alkylfenoly) sa vracajú naspat do reakčnej zmesi.The off-gases are cooled and the condensed products (POCl 4 and alkylphenols) are returned to the reaction mixture.

Hlavně výhody navrhovaného riešenia sú v tom, že na začiatku reakcia je vedená pri bode varu POCl^, ušetří sa energia na rektifikáciu alkylačnéj zmesi, využije sa exotermickoeť reakcie, plynule sa zabezpečí odvod vznikajúceho chlórovodíka a zároveň proces sa dá usporiadať do kaskády prietokových miešaných reaktorov, z ktorých každý bude vyhrievaný na rožnu teplotu, čím sa zabezpečí plynulostí procesu, zníží sa na minimum vplyv na životné prostredie a zabráni úniku POCl^ a fenolovz reakčného systému.The main advantages of the proposed solution are that at the beginning of the reaction is carried out at the boiling point of POCl 2, energy is saved to rectify the alkylation mixture, the exothermic reaction is utilized, the evacuation of hydrogen chloride is continuously ensured. each of which will be heated to a different temperature, thereby ensuring process continuity, minimizing environmental impact and preventing leakage of POCl 2 and phenols from the reaction system.

Příklad č. 1Example # 1

Do kondenzačního reaktora typu trojhrdlej banky sa předloží 245 g zmesi alkylfenolov o obsahu 62 % hmotnostních fenolu a 38 % hmotnostních izopropylfenolov, ktorých zloženie je následujíce 65,6 % hmotnostných fenolu, 31,5 % hmotnostných monoizopropylfenolov a 3 % hmotnostní diizopropylfenolov. Do tejto zmesi sa nadávkuje 0,5 g katalyzátora MgClg, zmes sa zahřeje na 80 °C a nadávkuje sa do nej 55,5 g POCI3. Za stálého miešania a odvodu chlórovodíka cez spatný chladič sa plynule zvyšuje teplota počas 2 hodin na 120 °C a v priebehu SalŠích 4 hodin na 160 °C. Po dosiahnutí 160 °C. sa reakčná zmes nechá 2 hodiny doreagovat a vyfuka sa dusíkom. Po ochladení sa získá suro· vý fosfát, .ktorého obsah chlóru je pod 0,1 % hmotnostných a číslo kyslosti je 6,2 mg KÓH/g.A three-neck flask condensation reactor is charged with 245 g of a mixture of alkylphenols containing 62% by weight of phenol and 38% by weight of isopropylphenols, the composition of which is 65.6% by weight of phenol, 31.5% by weight of monoisopropylphenols and 3% by weight of diisopropylphenols. To this mixture was added 0.5 g of MgCl 2 catalyst, heated to 80 ° C and 55.5 g of POCl 3 was charged therein. While stirring and evacuating the hydrogen chloride through a bad cooler, the temperature is continuously raised to 120 ° C for 2 hours and 160 ° C for 4 hours. After reaching 160 ° C. The reaction mixture was allowed to react for 2 hours and purged with nitrogen. After cooling, a crude phosphate is obtained having a chlorine content below 0.1% by weight and an acid number of 6.2 mg KOH / g.

Claims (2)

P R E D M E T VYNÁLEZUOF THE INVENTION 1. Spásob výroby zmesných triarylfosfátov reakciou zmesi fenolov s oxychloridom / fosforečným za přítomnosti soli horčíka vyznačující sa tým, že do zmesi obsahujucej od 30 do 50 % hmotnostných monoizopropylfenolov, od 2 do 10 % hmotnostných diizopropylf enolov, od 0,2 do 2 % hmotnostných triizopropylfenolov a od 30 do 70 % hmotnostných fenolu vyhriatej na 80 až 100 °C sa nadávkuje 0,28 až 0,33 molu oxychloridu fosforečného na 1 mol, teplota sa zvýši na 160 až 180 °C a záverom sa vyfuka chlorovodík suchým dusíkom pri 160 až 180 °C.A process for the preparation of mixed triaryl phosphates by reacting a mixture of phenols with oxychloride / phosphorus in the presence of a magnesium salt, characterized in that to a mixture containing from 30 to 50% by weight of monoisopropylphenols, from 2 to 10% by weight of diisopropylphenols, from 0.2 to 2% of triisopropylphenols and from 30 to 70% by weight of phenol heated to 80 to 100 ° C are dosed with 0.28 to 0.33 moles of phosphorus oxychloride per mole, the temperature is raised to 160 to 180 ° C and finally blowing hydrogen chloride with dry nitrogen at 160 to 180 ° C. 2. Sposob podlá bodu 1 vyznačující sa tým, že sa reakcia prevádza v kaskádě reakčných zón, ktoré sí miešané a ktorých teplota je zvyšovaná tak, že v prvej zóně je teplota 80 až 120 °C, v druhej zóně 120 až 150 °C a v tretej zóně 150 až 180 °C.2. The process of claim 1, wherein the reaction is carried out in a cascade of reaction zones which are stirred and whose temperature is raised such that the temperature of the first zone is 80 to 120 ° C, the second zone is 120 to 150 ° C, and a third zone of 150-180 ° C.
CS89832A 1989-02-08 1989-02-08 Method of mixed triarylphosphates preparation CS270897B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CS89832A CS270897B1 (en) 1989-02-08 1989-02-08 Method of mixed triarylphosphates preparation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CS89832A CS270897B1 (en) 1989-02-08 1989-02-08 Method of mixed triarylphosphates preparation

Publications (2)

Publication Number Publication Date
CS83289A1 CS83289A1 (en) 1989-12-13
CS270897B1 true CS270897B1 (en) 1990-08-14

Family

ID=5341223

Family Applications (1)

Application Number Title Priority Date Filing Date
CS89832A CS270897B1 (en) 1989-02-08 1989-02-08 Method of mixed triarylphosphates preparation

Country Status (1)

Country Link
CS (1) CS270897B1 (en)

Also Published As

Publication number Publication date
CS83289A1 (en) 1989-12-13

Similar Documents

Publication Publication Date Title
SU952110A3 (en) Process for producing poly(oxyorganophosphate)phosphonate
EP1327635B1 (en) Preparation of phenylphosphate esters of 4,4&#39;-biphenol
WO2017193463A1 (en) Composite phosphorus flame retardant comprising cyclic organophosphate with multiple dopo moieties, and manufacturing method thereof
CA2116802C (en) Process for the manufacture of poly(hydrocarbylene aryl phosphate) compositions
JP4695080B2 (en) Flame retardant phosphonate additives for thermoplastics
JP5064223B2 (en) Phosphate ester flame retardant derived from resorcinol-ketone reaction product
JP2001508401A (en) Method for producing aryl diphosphate esters
US3281506A (en) Secondary phosphites and process for manufacture thereof
Kuo et al. Flame‐retarding materials—I. Syntheses and flame‐retarding property of alkylphosphate‐type polyols and corresponding polyurethanes
CS270897B1 (en) Method of mixed triarylphosphates preparation
US3354117A (en) Stabilized polyolefins
JP2008520753A (en) Phosphate ester compounds based on benzoylresorcinol as flame retardant
KR20020023967A (en) Process for the preparation of condensed phosphoric esters
JPH0867685A (en) Method for purifying phosphoric esters
CA1299200C (en) Preparation of diaryl sulfones
JP2004511563A (en) Manufacturing method of phosphate ester
Meziane et al. Rapid and Efficient Synthesis of ω‐Alkylenediphosphoric Acids from Phosphorus Oxychloride
KR100845119B1 (en) Manufacturing method of organophosphorus flame retardant
US2975028A (en) Phosphorus compounds and process for making
JPS60105688A (en) Method for producing phosphate ester
EP1103557B1 (en) Process for preparing low-acid-value phosphoric esters
KR20100128046A (en) Phenylene phosphoramidate compound, preparation method thereof, and flame retardant thermoplastic resin composition comprising same
US2960524A (en) Manufacture of aryl phosphate esters
US3174989A (en) Process for production of trialkyl trithiophosphites and trialkyl trithiophosphates
US3471593A (en) Process for preparing amido phosphoric acid esters