RU2014152386A - A method of obtaining a slow-acting complex fertilizer based on a urea-formaldehyde polymer - Google Patents

A method of obtaining a slow-acting complex fertilizer based on a urea-formaldehyde polymer Download PDF

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Publication number
RU2014152386A
RU2014152386A RU2014152386A RU2014152386A RU2014152386A RU 2014152386 A RU2014152386 A RU 2014152386A RU 2014152386 A RU2014152386 A RU 2014152386A RU 2014152386 A RU2014152386 A RU 2014152386A RU 2014152386 A RU2014152386 A RU 2014152386A
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RU
Russia
Prior art keywords
urea
formaldehyde
slow
complex fertilizer
fertilizer based
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Application number
RU2014152386A
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Russian (ru)
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RU2619301C2 (en
Inventor
Вячеслав Иванович Пархоменко
Сергей Викторович Лукашов
Виктор Петрович Гамазин
Елена Геннадьевна Цублова
Original Assignee
Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Брянская государственная инженерно-технологическая академия"
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Priority to RU2014152386A priority Critical patent/RU2619301C2/en
Publication of RU2014152386A publication Critical patent/RU2014152386A/en
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Publication of RU2619301C2 publication Critical patent/RU2619301C2/en

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    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05C—NITROGENOUS FERTILISERS
    • C05C9/00—Fertilisers containing urea or urea compounds
    • C05C9/02—Fertilisers containing urea or urea compounds containing urea-formaldehyde condensates
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G9/00—Cultivation in receptacles, forcing-frames or greenhouses; Edging for beds, lawn or the like
    • A01G9/02—Receptacles, e.g. flower-pots or boxes; Glasses for cultivating flowers
    • A01G9/029—Receptacles for seedlings

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  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Fertilizers (AREA)

Abstract

Способ получения медленно действующего комплексного удобрения на основе мочевино-формальдегидного полимера, отличающийся тем, что, с целью интенсификации производства и улучшения агрохимических свойств удобрения, в сточные воды, содержащие растворенный формальдегид и карбамидоформальдегидную смолу, добавляют ортофосфорную кислоту до pH=2,0, вводят мочевину в мольном соотношении формальдегид:мочевина, равном 1,0:1,5, и выдерживают в течение 3,5-4,0 часов полученную смесь, отфильтровывают и высушивают в естественных условиях образовавшийся полимер, который смешивают с золой, доводя содержание KO до 10% по массе.A method of producing a slow-acting complex fertilizer based on a urea-formaldehyde polymer, characterized in that, in order to intensify production and improve the agrochemical properties of the fertilizer, orthophosphoric acid is added to wastewater containing dissolved formaldehyde and a urea-formaldehyde resin to pH = 2.0, is introduced urea in a molar ratio of formaldehyde: urea equal to 1.0: 1.5, and the resulting mixture is kept for 3.5-4.0 hours, the resulting n is filtered and dried under natural conditions Leamer, which is mixed with ash, bringing KO content to 10% by weight.

Claims (1)

Способ получения медленно действующего комплексного удобрения на основе мочевино-формальдегидного полимера, отличающийся тем, что, с целью интенсификации производства и улучшения агрохимических свойств удобрения, в сточные воды, содержащие растворенный формальдегид и карбамидоформальдегидную смолу, добавляют ортофосфорную кислоту до pH=2,0, вводят мочевину в мольном соотношении формальдегид:мочевина, равном 1,0:1,5, и выдерживают в течение 3,5-4,0 часов полученную смесь, отфильтровывают и высушивают в естественных условиях образовавшийся полимер, который смешивают с золой, доводя содержание K2O до 10% по массе. A method of producing a slow-acting complex fertilizer based on a urea-formaldehyde polymer, characterized in that, in order to intensify the production and improve the agrochemical properties of the fertilizer, orthophosphoric acid is added to wastewater containing dissolved formaldehyde and a urea-formaldehyde resin to pH = 2.0, and urea in a molar ratio of formaldehyde: urea equal to 1.0: 1.5, and the resulting mixture is kept for 3.5-4.0 hours, the resulting n is filtered and dried under natural conditions Leamer, which is mixed with ash, bringing the content of K 2 O to 10% by weight.
RU2014152386A 2014-12-23 2014-12-23 Method for producing slow-acting comlex fertilizer based on urea-formaldehyde resin RU2619301C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU2014152386A RU2619301C2 (en) 2014-12-23 2014-12-23 Method for producing slow-acting comlex fertilizer based on urea-formaldehyde resin

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU2014152386A RU2619301C2 (en) 2014-12-23 2014-12-23 Method for producing slow-acting comlex fertilizer based on urea-formaldehyde resin

Publications (2)

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RU2014152386A true RU2014152386A (en) 2016-07-10
RU2619301C2 RU2619301C2 (en) 2017-05-15

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RU2014152386A RU2619301C2 (en) 2014-12-23 2014-12-23 Method for producing slow-acting comlex fertilizer based on urea-formaldehyde resin

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2752942C1 (en) * 2020-12-22 2021-08-11 Сергей Васильевич Афанасьев Method for obtaining slow-release fertilizer

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU903363A1 (en) * 1977-01-10 1982-02-07 Самаркандский Государственный Университет Им. Алишера Навои Slowly acting urea-formaldehyde fertilizer
SU1063801A1 (en) * 1982-04-29 1983-12-30 Московский ордена Ленина и ордена Трудового Красного Знамени химико-технологический институт им.Д.И.Менделеева Process for producing urea formaldehyde fertilizer
CN103483613A (en) * 2013-09-26 2014-01-01 临沂市泰尔化工科技有限公司 Preparation method for degradable urea formaldehyde foam plant culture substrate

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Effective date: 20170510