SU128613A1 - Indium extraction method from tin acid-containing saline solutions - Google Patents

Indium extraction method from tin acid-containing saline solutions

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Publication number
SU128613A1
SU128613A1 SU643895A SU643895A SU128613A1 SU 128613 A1 SU128613 A1 SU 128613A1 SU 643895 A SU643895 A SU 643895A SU 643895 A SU643895 A SU 643895A SU 128613 A1 SU128613 A1 SU 128613A1
Authority
SU
USSR - Soviet Union
Prior art keywords
tin
indium
extraction method
saline solutions
containing saline
Prior art date
Application number
SU643895A
Other languages
Russian (ru)
Inventor
И.С. Левин
В.А. Михайлов
Original Assignee
И.С. Левин
В.А. Михайлов
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 И.С. Левин, В.А. Михайлов filed Critical И.С. Левин
Priority to SU643895A priority Critical patent/SU128613A1/en
Application granted granted Critical
Publication of SU128613A1 publication Critical patent/SU128613A1/en

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Description

Разделение инди  и олова как в тсхно.югии 1п1ди , так и в ; иалнтической практике св зано с большими трудност ми. Сундествующие технологические схемы извлечени  икди  из олоЕосодержащих материалов ЯВЛЯЮТСЯ громоздкими, дают низкий выход, равный примерно 30%, при этом нидий всегда загр знен оловом, что значительно снижает его ценность- Метод отгонки олова в виде тетрахлорида или тетрабромида, иримен емый дл  разделени  олова и инди  в аналитических цел х, довольно длительный, отгонка дес тых долей грамма галогенида олова при 200-250 продолжаетс  несколько часов.Separation of indie and tin, both in thirds and juices; practical experience is very difficult. Sustating technological schemes for the extraction of ikdi from oily-containing materials ARE cumbersome, give a low yield of approximately 30%, while nidium is always contaminated with tin, which significantly reduces its value. The method of distillation of tin in the form of tetrachloride or tetrabromide, designed to separate tin and indium for analytical purposes, rather long, the removal of tenths of a gram of tin halide at 200-250 takes several hours.

Описываемый способ разделени  инди  и олова, пригодный дл  и.спользовани  в технологической и аналитической практике,  вл етс  более простым « экономичным. Способ основан на избирательной экстракции инди  алкилфосфорными ИоТи алкилпирофосфорными кислотами (или их смбсью) в инертном органическом растворителе (бензоле ИЛИ керосине) из сол нокислых растворов в присутствии фтористого аммони  в качестве маскирующего комплексообразовател , удерживающего олоЕо в СОЛЯНОКИСЛОМ растворе.The described method of separating indium and tin, suitable for use in technological and analytical practice, is simpler "economical." The method is based on selective extraction of indium alkylphosphoric ITs with alkyl pyrophosphoric acids (or their mixtures) in an inert organic solvent (benzene OR kerosene) from hydrochloric acid solutions in the presence of ammonium fluoride as a masking complexing agent that holds olEo in SOLYANO ACID.

Практически дл  разделени  инди  и четырехвалентного олова (двухвалентное олово не св зываетс  фтористым аммонием) экстракци  проводитс  из СОЛЯНОКИСЛОГО раствора 0,1-0,3 X при 10-20-кратном избытке фтористого аммони  по отношению к количеству, стехиометрически необходимому дл  св зывани  всего олова в комилекс (гексафторостанеат аммони ). Коэффициент распределени  в указанных услови х составл ет 100-150 дл  инди  и около 0,01 дл  олова, что обеспечивает возможность их ПОЛНОГО разделени .Practically for the separation of indium and tetravalent tin (divalent tin does not bind with ammonium fluoride) the extraction is carried out from a SOLYACY 0.12-0.3 X solution with 10-20-fold excess of ammonium fluoride relative to the amount stoichiometrically necessary to bind the entire tin in comilex (ammonium hexafluorostaneate). The distribution coefficient in these conditions is 100-150 for indium and about 0.01 for tin, which makes it possible FULL to separate them.

Д:1  ПОЛНО очистки от олова органическа  фаза промываетс  2- 3 раза слабокислым раствором фтористого аммоии , индий при этом из органической фазы не вымыЕ аетс . Реэкстракци  инди  осуществл етс D: 1 TOTAL tin removal The organic phase is washed 2 to 3 times with a weakly acid solution of ammonium fluoride, while indium is not removed from the organic phase. Reextraction of indie is carried out

N° 128613обработкой органической фазы сол ной кислотой.N ° 128613 by treatment of the organic phase with hydrochloric acid.

Проведенные опыты показали, что способ обеспечивает получение практически чистого инди  при исходном соотношении олова к индию 1000 : 1 и выше.Experiments have shown that the method provides almost pure indie at an initial ratio of tin to india of 1000: 1 and above.

П р е д м е т и в о б р е т е н и  PRIORITY AND INQUIRY

Способ экстракции инди  из сол нокислых растворов, содержащих олово, отличаюш,ийс  тем, что, с целью сокращени  производственного цИКла, индий из исходных растворов экстрагируют алкилфо-:форными кислотами EI присутствии 10-20-кратиого избытка фтористого аммони  дл  депрессии олова.The method of extracting indium from tin-containing hydrochloric acid solutions is different because in order to reduce the production cycle, indium is extracted from the initial solutions with alkyl photophoric acids EI in the presence of a 10–20 krate excess of ammonium fluoride for tin depression.

SU643895A 1959-11-13 1959-11-13 Indium extraction method from tin acid-containing saline solutions SU128613A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU643895A SU128613A1 (en) 1959-11-13 1959-11-13 Indium extraction method from tin acid-containing saline solutions

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU643895A SU128613A1 (en) 1959-11-13 1959-11-13 Indium extraction method from tin acid-containing saline solutions

Publications (1)

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SU128613A1 true SU128613A1 (en) 1959-11-30

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4372922A (en) 1978-09-11 1983-02-08 Paolo Fossi Process for the recovery of indium

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4372922A (en) 1978-09-11 1983-02-08 Paolo Fossi Process for the recovery of indium

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