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2 602 097

(13)

(51)

IPC

C01C1/18(2006-01-01)

C05C3/00(2006-01-01)

(21) (22)

Application

2015120763/05, 2015-06-01

(24)

Start date

2015-06-01

(22)

Actual filing date

2015-06-01

(45)

Published

2016-11-10

(72)

Inventor

Khalitov Rifkat AbdrakhmanovichMakhotkin Aleksej FeofilaktovichMadjarov Renat RustamovichKhajrullin Radik RenatovichValeev Ilnaz Ilgizarovich

(73)

Holder

Federalnoe Gosudarstvennoe Bjudzhetnoe Obrazovatelnoe Uchrezhdenie Vysshego Obrazovanija Natsionalnyj Issledovatelskij Tekhnologicheskij Universitet" Vo

METHOD FOR PRODUCING AMMONIUM SULPHATE-NITRATE Russian patent published in 2016 - IPC C01C1/18 C05C3/00

Abstract RU 2602097 C1

FIELD: agriculture.

SUBSTANCE: invention relates to mineral fertilisers technology. Method for producing ammonium sulphate-nitrate involves dilution with nitric acid of spent acid mixture from cellulose nitrates production in order to obtain weight ratio of sulphuric and nitric acids 0.75÷1.45 based on 100 % acids. Obtained mixture of sulphuric and nitric acids is neutralised with ammonia followed by evaporation of water due to neutralisation reaction heat. Neutralisation products are processed into commercial product.

EFFECT: technical result is reduction of toxic gas emissions into atmosphere.

1 cl, 1 tbl

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RU 2 602 097 C1

Authors

Khalitov Rifkat Abdrakhmanovich

Makhotkin Aleksej Feofilaktovich

Madjarov Renat Rustamovich

Khajrullin Radik Renatovich

Valeev Ilnaz Ilgizarovich

Dates

2016-11-10—Published

2015-06-01—Filed