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RU2009124620A - METHOD FOR PRODUCING PHOSPHONOMETHYLGLYCIN - Google Patents

METHOD FOR PRODUCING PHOSPHONOMETHYLGLYCIN Download PDF

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Publication number
RU2009124620A
RU2009124620A RU2009124620/04A RU2009124620A RU2009124620A RU 2009124620 A RU2009124620 A RU 2009124620A RU 2009124620/04 A RU2009124620/04 A RU 2009124620/04A RU 2009124620 A RU2009124620 A RU 2009124620A RU 2009124620 A RU2009124620 A RU 2009124620A
Authority
RU
Russia
Prior art keywords
phosphonomethyliminodiacetic acid
oxide
reaction mass
homogeneous
catalyst
Prior art date
Application number
RU2009124620/04A
Other languages
Russian (ru)
Inventor
Валерий Петрович Чернышев (RU)
Валерий Петрович Чернышев
Надежда Людвиговна Либеровская (RU)
Надежда Людвиговна Либеровская
Ирина Исаковна Елисеева (RU)
Ирина Исаковна Елисеева
Анна Степановна Ковалева (RU)
Анна Степановна Ковалева
Нина Васильевна Козлова (RU)
Нина Васильевна Козлова
Валентина Сергеевна Юрина (RU)
Валентина Сергеевна Юрина
Салис Добаевич Каракотов (RU)
Салис Добаевич Каракотов
Original Assignee
Министерство промышленности и торговли РФ (RU)
Министерство Промышленности И Торговли Рф
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 Министерство промышленности и торговли РФ (RU), Министерство Промышленности И Торговли Рф filed Critical Министерство промышленности и торговли РФ (RU)
Priority to RU2009124620/04A priority Critical patent/RU2009124620A/en
Publication of RU2009124620A publication Critical patent/RU2009124620A/en

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Abstract

Способ получения глифосата путем окисления фосфонометилиминодиуксусной кислоты эквивалентным количеством перекиси водорода в водной среде в присутствии гомогенного катализатора вольфрамата натрия с образованием промежуточной N-окиси фосфонометилиминодиуксусной кислоты с последующим ее разложением в присутствии гомогенного катализатора ванадил сульфата и выделением из реакционной массы фильтрацией целевого продукта, отличающийся тем, что к N-окиси фосфонометилиминодиуксусной кислоты добавляют метанол до концентрации его 30-70 об.% в реакционной массе. The method of producing glyphosate by oxidizing phosphonomethyliminodiacetic acid with an equivalent amount of hydrogen peroxide in an aqueous medium in the presence of a homogeneous sodium tungstate catalyst with the formation of intermediate N-oxide phosphonomethyliminodiacetic acid with its subsequent decomposition in the presence of a homogeneous vanadyl sulfate catalyst and isolating the target product from the reaction mass, characterized in that that methanol is added to phosphonomethyliminodiacetic acid N-oxide to a concentration of 30-70 vol.% in the reaction mass.

Claims (1)

Способ получения глифосата путем окисления фосфонометилиминодиуксусной кислоты эквивалентным количеством перекиси водорода в водной среде в присутствии гомогенного катализатора вольфрамата натрия с образованием промежуточной N-окиси фосфонометилиминодиуксусной кислоты с последующим ее разложением в присутствии гомогенного катализатора ванадил сульфата и выделением из реакционной массы фильтрацией целевого продукта, отличающийся тем, что к N-окиси фосфонометилиминодиуксусной кислоты добавляют метанол до концентрации его 30-70 об.% в реакционной массе. The method of producing glyphosate by oxidizing phosphonomethyliminodiacetic acid with an equivalent amount of hydrogen peroxide in an aqueous medium in the presence of a homogeneous sodium tungstate catalyst with the formation of intermediate N-oxide phosphonomethyliminodiacetic acid with its subsequent decomposition in the presence of a homogeneous vanadyl sulfate catalyst and isolating the target product from the reaction mass, characterized in that that methanol is added to phosphonomethyliminodiacetic acid N-oxide to a concentration of 30-70 vol.% in the reaction mass.
RU2009124620/04A 2009-06-30 2009-06-30 METHOD FOR PRODUCING PHOSPHONOMETHYLGLYCIN RU2009124620A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU2009124620/04A RU2009124620A (en) 2009-06-30 2009-06-30 METHOD FOR PRODUCING PHOSPHONOMETHYLGLYCIN

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU2009124620/04A RU2009124620A (en) 2009-06-30 2009-06-30 METHOD FOR PRODUCING PHOSPHONOMETHYLGLYCIN

Publications (1)

Publication Number Publication Date
RU2009124620A true RU2009124620A (en) 2011-01-10

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
RU2009124620/04A RU2009124620A (en) 2009-06-30 2009-06-30 METHOD FOR PRODUCING PHOSPHONOMETHYLGLYCIN

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RU (1) RU2009124620A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111068497A (en) * 2019-12-13 2020-04-28 湖北泰盛化工有限公司 A kind of solvent methanol recovery device and method in glyphosate production

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111068497A (en) * 2019-12-13 2020-04-28 湖北泰盛化工有限公司 A kind of solvent methanol recovery device and method in glyphosate production

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FA92 Acknowledgement of application withdrawn (lack of supplementary materials submitted)

Effective date: 20110112