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2 714 077

(13)

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IPC

B01J20/30(2006-01-01)

B01J20/12(2006-01-01)

B01J20/10(2006-01-01)

(21) (22)

Application

2019109580, 2019-04-02

(24)

Start date

2019-04-02

(22)

Actual filing date

2019-04-02

(45)

Published

2020-02-11

(72)

Inventor

Rysev Anton PetrovichKonkova Tatyana VladimirovnaLiberman Elena YurevnaChin Nguen KuinMalkova Yuliya Olegovna

(73)

Holder

Federalnoe Gosudarstvennoe Byudzhetnoe Obrazovatelnoe Uchrezhdenie Vysshego Obrazovaniya Khimiko-Tekhnologicheskij Universitet Imeni D.I. Mendeleeva" Im. D.I. Mendeleeva)

METHOD OF PRODUCING SORBENT BASED ON NATURAL BENTONITE Russian patent published in 2020 - IPC B01J20/30 B01J20/12 B01J20/10

Abstract RU 2714077 C1

FIELD: technological processes.

SUBSTANCE: invention relates to a method of producing sorbent for galvanic, textile, leather and other waste water treatment. Disclosed is a method of producing a sorbent for extracting bichromate anions from an aqueous solution. Method comprises mixing bentonite suspension in 20 % sodium metasilicate taken based on weight ratio of SiO₂, present in sodium metasilicate solution, to bentonite equal to 0.8:1. Modified bentonite is washed with water, treated with 10 % solution of sulfuric acid and subjected to thermal treatment at 200 °C.

EFFECT: invention enables to obtain a sorbent with high sorption capacity and good filterability.

1 cl, 1 tbl, 6 ex

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RU 2 714 077 C1

Authors

Rysev Anton Petrovich

Konkova Tatyana Vladimirovna

Liberman Elena Yurevna

Chin Nguen Kuin

Malkova Yuliya Olegovna

Dates

2020-02-11—Published

2019-04-02—Filed