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SU505627A1 - Method for producing oxyalkyl acrylates or oxyalkyl methacrylates - Google Patents

Method for producing oxyalkyl acrylates or oxyalkyl methacrylates

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Publication number
SU505627A1
SU505627A1 SU2057678A SU2057678A SU505627A1 SU 505627 A1 SU505627 A1 SU 505627A1 SU 2057678 A SU2057678 A SU 2057678A SU 2057678 A SU2057678 A SU 2057678A SU 505627 A1 SU505627 A1 SU 505627A1
Authority
SU
USSR - Soviet Union
Prior art keywords
oxyalkyl
methacrylates
acrylates
producing
methacrylate
Prior art date
Application number
SU2057678A
Other languages
Russian (ru)
Inventor
Антонина Александровна Гололобова
Александр Петрович Синеоков
Закия Сайбасаховна Салахетдинова
Владимир Николаевич Штефан
Валентина Трифоновна Зубкова
Юрий Васильевич Неумоин
Original Assignee
Предприятие П/Я М-5927
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 Предприятие П/Я М-5927 filed Critical Предприятие П/Я М-5927
Priority to SU2057678A priority Critical patent/SU505627A1/en
Application granted granted Critical
Publication of SU505627A1 publication Critical patent/SU505627A1/en

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  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Catalysts (AREA)

Description

ле дистилл ци  получают 247 г (95%) метакрилата этиленгликол , содержащего 0,03% диэфира.247 g (95%) of ethylene glycol methacrylate containing 0.03% diester are obtained.

Пример 4. 144 г акр ловой кислоты, 0,66 г акрллата оксихлорида хрома и 0,144 г гидрохинона перемешивают, нагревают до 75° С, в течение 1 час подают 130 г окиси пролилена и провод т реакцию -при 80° С в течение 4 час до кислотности смеси 0,2%. Сырец дистиллируют в вакууме, отбира  252 г (96%) целевого продукта при 72-75° С/3 мм. Продукт содержит 0,08% диэфира.Example 4. 144 g of acrylic acid, 0.66 g of chromium oxychloride acrylate and 0.144 g of hydroquinone are mixed, heated to 75 ° C, 130 g of proline oxide are fed during 1 hour and the reaction is carried out at 80 ° C for 4 hours to the acidity of a mixture of 0.2%. The raw material is distilled under vacuum; 252 g (96%) of the desired product is collected at 72-75 ° C / 3 mm. The product contains 0.08% diester.

Пример 5, Через смесь 172 г метакриловой кислоты, 2,6 е метакрилата оксихлорида хрома и 0,172 г гидрохинона при переме-. шивании и 70-75° С барботируют 130 г окиси пролилена в течение 1 час. В последующие 30 лш« кислотность смеси снижаетс  до О, I %, после чего реакцию заканчивают. При дистилл ции сырца получают 276,6 г (96%) оксипропилметакрилата , содержащего 0,07% диэфира .Example 5: Through a mixture of 172 g of methacrylic acid, 2.6 e of chromium oxychloride methacrylate and 0.172 g of hydroquinone with stirring. Sewing and 70-75 ° C bubbled 130 g of proline oxide for 1 hour. In the next 30 min the acidity of the mixture is reduced to O, I%, after which the reaction is terminated. By distillation of the crude, 276.6 g (96%) of hydroxypropyl methacrylate containing 0.07% diester are obtained.

Пример 6. 172 г мета криловой кислоты и 1,06 г метакрилата оксихлорида хрома перемешивают , нагревают до 75° Сив течение 1 час ввод т 130 г окиси пропилена. Реакцию заканчивают при (кислотности смеси 0,1%. Общее врем  реакции 3 час. Сырец дистиллируют , отбира  279 г (96,9%) оксипропилметакрилата при 66-67° С/1 мм, содержащего 0,05% диэфира.Example 6. 172 g of methacrylate acid and 1.06 g of chromium oxychloride methacrylate are stirred, heated to 75 ° C, 130 g of propylene oxide are introduced for 1 hour. The reaction is finished at (the acidity of the mixture is 0.1%. The total reaction time is 3 hours. The raw material is distilled; 279 g (96.9%) of hydroxypropyl methacrylate are taken at 66-67 ° C / 1 mm, containing 0.05% diester.

Все продукты, полученные в примерах 1 - 6, не содержат кислоты.All products obtained in examples 1 to 6 do not contain acid.

Claims (1)

Формула изобретени Invention Formula Способ получени  оксиал-килакрилатов или оксиалкилметакрилатов путем взаимодействи The method of obtaining oxyalkyl acrylates or oxyalkyl methacrylates by reacting акриловой или метакриловой кислоты с окисью олефина в присутствии хромсодержащего катализатора и ингибитора поли.меризации при 40-90° С с последующим выделением целевого продукта известными приемами, отличающийс  тем, что, с целью ускорени  процесса и повышени  качества целевого продукта , в качестве катализатора используют акрилат или метакрилат оксихлорида (+ в количестве 0,2-5 вес. % в расчете наacrylic or methacrylic acid with olefin oxide in the presence of a chromium-containing catalyst and a polymerization inhibitor at 40-90 ° C, followed by separation of the target product by known techniques, characterized in that, to accelerate the process and improve the quality of the target product, acrylate is used as a catalyst or methacrylate oxychloride (+ in the amount of 0.2-5 wt.% calculated on кислоту.acid.
SU2057678A 1974-09-06 1974-09-06 Method for producing oxyalkyl acrylates or oxyalkyl methacrylates SU505627A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU2057678A SU505627A1 (en) 1974-09-06 1974-09-06 Method for producing oxyalkyl acrylates or oxyalkyl methacrylates

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU2057678A SU505627A1 (en) 1974-09-06 1974-09-06 Method for producing oxyalkyl acrylates or oxyalkyl methacrylates

Publications (1)

Publication Number Publication Date
SU505627A1 true SU505627A1 (en) 1976-03-05

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Family Applications (1)

Application Number Title Priority Date Filing Date
SU2057678A SU505627A1 (en) 1974-09-06 1974-09-06 Method for producing oxyalkyl acrylates or oxyalkyl methacrylates

Country Status (1)

Country Link
SU (1) SU505627A1 (en)

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