RU1729027C - Method of preparing of sorbent for lithium extraction from mother liquor - Google Patents

Method of preparing of sorbent for lithium extraction from mother liquor Download PDF

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Publication number
RU1729027C
RU1729027C SU4808266A RU1729027C RU 1729027 C RU1729027 C RU 1729027C SU 4808266 A SU4808266 A SU 4808266A RU 1729027 C RU1729027 C RU 1729027C
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RU
Russia
Prior art keywords
sorbent
preparing
lithium
aluminum hydroxide
lithium extraction
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Russian (ru)
Inventor
Л.Т. Менжерес
В.П. Исупов
Н.П. Коцупало
Л.Б. Орлова
В.Н. Ильинич
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Институт химии твердого тела и переработки минерального сырья СО РАН
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Priority to SU4808266 priority Critical patent/RU1729027C/en
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  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)

Abstract

FIELD: preparing of hydroxide sorbents. SUBSTANCE: method involves interaction of amorphous alumina prepared by thermal treatment of its crystalline modification at 370-500 C with lithium salt solution following by washing of material with water up to attainment of atomic ratio Al:Li in sorbent phase 7-9. Invention insures to increase filtration rate through sorbent, to decrease labour intensity and energy capacity of sorbent preparing by 8.5-10 times. Method can be used for selective lithium extraction from the natural mother liquors. EFFECT: improved method of sorbent preparing. 1 tbl

Description

Изобретение относится к способам получения гидроксидных сорбентов, которые могут быть использованы для селективного извлечения лития из природных рассолов. The invention relates to methods for producing hydroxide sorbents that can be used for the selective extraction of lithium from natural brines.

Цель изобретения - улучшение фильтрующих свойств сорбента и упрощение способа его получения. The purpose of the invention is to improve the filtering properties of the sorbent and simplify the method of its production.

П р и м е р. Кристаллический гидроксид алюминия (гидрагиллит) нагревают при 500оС в режиме противотока на фонтанирующем слое. Время пребывания материала в зоне нагрева не превышает 1 с. 10 г термоактивированного гидроксида алюминия обрабатывают 700 мл 6%-ного раствора хлорида лития при 90оС в течение 5 ч. Осадок отделяют от раствора и промывают 0,2%-ным раствором LiCl. Для получения сорбента полученный материал промывают водой при Ж:T = 30 и температуре 70оС в течение 15-30 мин. Атомное отношение Al:Li в сорбенте равно 7.PRI me R. Crystalline aluminum hydroxide (gidragillit) was heated at 500 ° C in a countercurrent mode spouted bed. The residence time of the material in the heating zone does not exceed 1 s. 10 g of the thermally activated aluminum hydroxide treated with 700 ml of a 6% solution of lithium chloride at 90 ° C for 5 hours. The precipitate was separated from the solution and washed with 0.2% aqueous LiCl. For sorbent material obtained was washed with water at a F: T = 30 and 70 ° C for 15-30 min. The atomic ratio Al: Li in the sorbent is 7.

В таблице приведены условия синтеза сорбентов при различных параметрах процесса. The table shows the conditions for the synthesis of sorbents at various process parameters.

Полученные сорбенты испытывают на сорбцию лития из природного рассола состава, г/л: LiCl 0,93; CaCl2 181,6; MgCl2 52,2; NaCl 76,3; KCl 22,9, в статических условиях. Время обработки 1 ч, температура 20оС.The obtained sorbents are tested for sorption of lithium from a natural brine of the composition, g / l: LiCl 0.93; CaCl 2 181.6; MgCl 2 52.2; NaCl 76.3; KCl 22.9, in static conditions. Processing time 1 h, temperature 20 o C.

Технико-экономические преимущества предлагаемого способа состоят в увеличении скорости фильтрации рассола через сорбент по сравнению с известным в 8,5-10 раз. Кроме того, достигается заметное упрощение способа получения сорбента за счет исключения энерго- и трудоемкого способа механической активации гидроксида алюминия. Technical appraisal and economic advantages of the proposed method consist in increasing the filtration rate of the brine through the sorbent in comparison with the known 8.5-10 times. In addition, a significant simplification of the method for producing the sorbent is achieved by eliminating the energy-intensive and labor-intensive method of mechanical activation of aluminum hydroxide.

Claims (1)

СПОСОБ ПОЛУЧЕНИЯ СОРБЕНТА ДЛЯ ИЗВЛЕЧЕНИЯ ЛИТИЯ ИЗ РАССОЛОВ, включающий взаимодействие гидроксида алюминия с раствором хлорида лития и частичное удаление лития из полученного композита путем промывки водой или слабым раствором хлорида лития, отличающийся тем, что, с целью улучшения фильтрующих свойств сорбента и упрощения способа его получения, используют аморфный гидроксид алюминия, полученный термообработкой кристаллического гидроксида алюминия при температуре 370 - 500oС, а полученный композит промывают до атомного отношения Al : Li в сорбенте, равного 7 - 9.METHOD FOR PRODUCING SORBENT FOR EXTRACTION OF LITHIUM FROM BRANES, including the interaction of aluminum hydroxide with a solution of lithium chloride and partial removal of lithium from the obtained composite by washing with water or a weak solution of lithium chloride, characterized in that, in order to improve the filtering properties of the sorbent and simplify the method of its preparation, use amorphous aluminum hydroxide obtained by heat treatment of crystalline aluminum hydroxide at a temperature of 370 - 500 o C, and the resulting composite is washed to an atomic ratio Al: Li in s orbent equal to 7 - 9.
SU4808266 1990-01-31 1990-01-31 Method of preparing of sorbent for lithium extraction from mother liquor RU1729027C (en)

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8637428B1 (en) 2009-12-18 2014-01-28 Simbol Inc. Lithium extraction composition and method of preparation thereof
US8753594B1 (en) 2009-11-13 2014-06-17 Simbol, Inc. Sorbent for lithium extraction
US9034294B1 (en) 2009-04-24 2015-05-19 Simbol, Inc. Preparation of lithium carbonate from lithium chloride containing brines
US9034295B2 (en) 2009-04-24 2015-05-19 Simbol, Inc. Preparation of lithium carbonate from lithium chloride containing brines
US9074265B2 (en) 2010-02-17 2015-07-07 Simbol, Inc. Processes for preparing highly pure lithium carbonate and other highly pure lithium containing compounds
US10190030B2 (en) 2009-04-24 2019-01-29 Alger Alternative Energy, Llc Treated geothermal brine compositions with reduced concentrations of silica, iron and lithium
US10935006B2 (en) 2009-06-24 2021-03-02 Terralithium Llc Process for producing geothermal power, selective removal of silica and iron from brines, and improved injectivity of treated brines
RU2821512C1 (en) * 2023-11-07 2024-06-25 Общество с ограниченной ответственностью "Нижегороднефтегазпроект" (ООО "ННГП") Method of producing sorbent and its granulation for extracting lithium from brines
US12168748B2 (en) 2009-04-24 2024-12-17 Terralithium Llc Treated geothermal brine compositions with reduced concentration of silica, iron and lithium

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Авторское свидетельство СССР N 1665581, кл. B 01J 20/08, 1991. *

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10773970B2 (en) 2009-04-24 2020-09-15 Terralithium Llc Preparation of lithium carbonate from lithium chloride containing brines
US10829676B2 (en) 2009-04-24 2020-11-10 Terralithium Llc Treated geothermal brine compositions with reduced concentration of silica, iron and lithium
US12168748B2 (en) 2009-04-24 2024-12-17 Terralithium Llc Treated geothermal brine compositions with reduced concentration of silica, iron and lithium
US9034294B1 (en) 2009-04-24 2015-05-19 Simbol, Inc. Preparation of lithium carbonate from lithium chloride containing brines
US11649170B2 (en) 2009-04-24 2023-05-16 Terralithium Llc Preparation of lithium carbonate from lithium chloride containing brines
US11466191B2 (en) 2009-04-24 2022-10-11 Terralithium Llc Treated geothermal brine compositions with reduced concentration of silica, iron and lithium
US10190030B2 (en) 2009-04-24 2019-01-29 Alger Alternative Energy, Llc Treated geothermal brine compositions with reduced concentrations of silica, iron and lithium
US9834449B2 (en) 2009-04-24 2017-12-05 Alger Alternative Energy, Llc Preparation of lithium carbonate from lithium chloride containing brines
US9034295B2 (en) 2009-04-24 2015-05-19 Simbol, Inc. Preparation of lithium carbonate from lithium chloride containing brines
US10935006B2 (en) 2009-06-24 2021-03-02 Terralithium Llc Process for producing geothermal power, selective removal of silica and iron from brines, and improved injectivity of treated brines
US11828272B2 (en) 2009-06-24 2023-11-28 Terralithium Llc Process for producing geothermal power, selective removal of silica and iron from brines, and improved injectivity of treated brines
US8753594B1 (en) 2009-11-13 2014-06-17 Simbol, Inc. Sorbent for lithium extraction
US8637428B1 (en) 2009-12-18 2014-01-28 Simbol Inc. Lithium extraction composition and method of preparation thereof
US9012357B2 (en) 2009-12-18 2015-04-21 Simbol, Inc. Lithium extraction composition and method of preparation thereof
US9074265B2 (en) 2010-02-17 2015-07-07 Simbol, Inc. Processes for preparing highly pure lithium carbonate and other highly pure lithium containing compounds
RU2821512C1 (en) * 2023-11-07 2024-06-25 Общество с ограниченной ответственностью "Нижегороднефтегазпроект" (ООО "ННГП") Method of producing sorbent and its granulation for extracting lithium from brines

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