RU95100711A - Method of preparing complex fertilizer - Google Patents

Method of preparing complex fertilizer

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Publication number
RU95100711A
RU95100711A RU95100711/25A RU95100711A RU95100711A RU 95100711 A RU95100711 A RU 95100711A RU 95100711/25 A RU95100711/25 A RU 95100711/25A RU 95100711 A RU95100711 A RU 95100711A RU 95100711 A RU95100711 A RU 95100711A
Authority
RU
Russia
Prior art keywords
sulfuric acid
complex fertilizer
neutralized
ammonia
preparing complex
Prior art date
Application number
RU95100711/25A
Other languages
Russian (ru)
Inventor
Ф.И. Долгий
В.М. Зезюкин
В.А. Самсонов
А.М. Козлова
В.Е. Первинкин
Н.Ф. Максименко
Н.Н. Сеген
Н.Г. Каштелян
Original Assignee
Гомельский химический завод
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 Гомельский химический завод filed Critical Гомельский химический завод
Priority to RU95100711/25A priority Critical patent/RU95100711A/en
Publication of RU95100711A publication Critical patent/RU95100711A/en

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  • Fertilizers (AREA)

Abstract

FIELD: agriculture, superphosphate fertilizer production. SUBSTANCE: suspension resulting from sulfuric acid effected decomposition of phosphorous material is neutralized with ammonia to pH 3-4, while in the neutralization stage extraction phosphoric acid is added to ratio PO:SO= 1: (0.4-0.9). EFFECT: increased strength of grains and reduced dust losses.

Claims (1)

Способ относится к технологии получения гранулированных сложных минеральных удобрений на основе суперфосфата. Цель: повышение прочности гранул и снижение пылеуноса. Это достигается в основном благодаря тому, что суспензию после сернокислотного разложения фоссырья нейтрализуют аммиаком до рН 3 - 4, причем на стадии нейтрализации вводят экстракционную фосфорную кислоту до соотношения Р205 : S04 = 1 : 0,4 - 0,9. Изобретение может быть использовано на предприятиях, производящих гранулированные фосфорные удобрения на основе сернокислотной переработки фосфатного сырья.The method relates to a technology for producing granular complex mineral fertilizers based on superphosphate. Purpose: increasing the strength of granules and reducing dust. This is achieved mainly due to the fact that the suspension after sulfuric acid decomposition of the fossy is neutralized with ammonia to pH 3-4, and extraction phosphoric acid is introduced into the neutralization stage to a ratio of P 2 0 5 : S0 4 = 1: 0.4 - 0.9. The invention can be used in enterprises producing granular phosphate fertilizers based on sulfuric acid processing of phosphate raw materials.
RU95100711/25A 1995-01-17 1995-01-17 Method of preparing complex fertilizer RU95100711A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU95100711/25A RU95100711A (en) 1995-01-17 1995-01-17 Method of preparing complex fertilizer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU95100711/25A RU95100711A (en) 1995-01-17 1995-01-17 Method of preparing complex fertilizer

Publications (1)

Publication Number Publication Date
RU95100711A true RU95100711A (en) 1996-09-27

Family

ID=48450410

Family Applications (1)

Application Number Title Priority Date Filing Date
RU95100711/25A RU95100711A (en) 1995-01-17 1995-01-17 Method of preparing complex fertilizer

Country Status (1)

Country Link
RU (1) RU95100711A (en)

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