SU373257A1 - METHOD FOR DECOMPOSITION OF TITANIUM CONCENTRATES - Google Patents

METHOD FOR DECOMPOSITION OF TITANIUM CONCENTRATES

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Publication number
SU373257A1
SU373257A1 SU1600119A SU1600119A SU373257A1 SU 373257 A1 SU373257 A1 SU 373257A1 SU 1600119 A SU1600119 A SU 1600119A SU 1600119 A SU1600119 A SU 1600119A SU 373257 A1 SU373257 A1 SU 373257A1
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SU
USSR - Soviet Union
Prior art keywords
decomposition
concentrates
titanium
sulfuric acid
titanium concentrates
Prior art date
Application number
SU1600119A
Other languages
Russian (ru)
Inventor
И. Н. Забродин Л. И. Беккерман
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
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Priority to SU1600119A priority Critical patent/SU373257A1/en
Application granted granted Critical
Publication of SU373257A1 publication Critical patent/SU373257A1/en

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  • Inorganic Compounds Of Heavy Metals (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Description

1one

Изобретение относитс  к области разложени  титановых концентратов серной кислотой в нронзводстве двуокиси титана.This invention relates to the field of the decomposition of titanium concentrates with sulfuric acid in the production of titanium dioxide.

Известен способ разложени  титановых концентратов , заключающийс  в обработке последних серной кислотой с перемешиванием воздухом, последующим подогревом реакционной массы, выщелачиванием плава и восстановлением трехвалентного железа.There is a known method of decomposition of titanium concentrates, which consists in treating the latter with sulfuric acid with air mixing, subsequent heating of the reaction mass, leaching of the melt and reduction of ferric iron.

Недостатками известного способа  вл ютс  низка  степень извлечени  двуокиси титана (до 92%) при разложении измененных ильменитовых концентратов, обусловленна  образованием труднорастворимого соединени  сернокислой соли титана и железа, а следовательно длительного процесса выщелачивани  и невысока  скорость фильтрации раствора на носледующих стади х передела.The disadvantages of this method are the low degree of extraction of titanium dioxide (up to 92%) during decomposition of modified ilmenite concentrates, due to the formation of a hardly soluble compound of titanium and iron sulfate salts, and consequently a long leaching process and a low filtration rate of the solution at the next stages of redistribution.

Предлагаемый способ отличаетс  от известного тем, что восстановитель ввод т в реакционную массу непосредственно иеред ее подогревом . Это обеспечивает повышение степени извлечени  двуокиси титана при разложении измененных ильменитовых концентратов до 95-96%.The proposed method differs from the known one in that the reducing agent is introduced into the reaction mass directly and is heated. This provides an increase in the degree of extraction of titanium dioxide during the decomposition of modified ilmenite concentrates to 95-96%.

Пример 1. В качестве исходного сырь  берут ильменитовый концентрат следующего состава (в%): FeO 13,5; TiOa 59,6; FeaOg 21,4. В него ввод т 85%-ную серную кислоту в весовом соотношении 1:2 при перемешиваНИИ воздухом. К полученной смеси доба-вл ют восстановитель - металлическое железо и процесс дальнейшего разложени  концентрата ведут по известному методу путем нагревани  наром до температуры и выдерживани  реакционной смеси при этой температуре. Извлечение двуокиси титаиа 95,7%.Example 1. As a source of raw materials take ilmenite concentrate of the following composition (in%): FeO 13,5; TiOa 59.6; FeaOg 21.4. 85% sulfuric acid is introduced into it in a 1: 2 weight ratio with mixing with air. The resulting mixture is added to a reducing agent, metallic iron, and the process of further decomposing the concentrate is carried out according to a known method by heating the nar to temperature and keeping the reaction mixture at this temperature. Extraction of titanium dioxide 95.7%.

П р и м ер 2. В качестве исходного сырь  берут ил1зменитовый концентрат следующего состава (в %); ТЮа 63,0; РеО 1,0; РеаОз 23,0. В него ввод т 92%-ную серную кислоту в весовом отношении 1:2 при перемешивании воздухом . К полученной смеси добавл ют металлическое железо и ведут процесс по указанному методу при температуре 185°С.PRI m eper 2. As an initial raw material, take an il1-replaceable concentrate of the following composition (in%); TU 63.0; PeO 1.0; ReaOz 23.0. 92% sulfuric acid is introduced into it in a weight ratio of 1: 2 with air stirring. Metallic iron is added to the mixture and the process is carried out according to the indicated method at a temperature of 185 ° C.

Извлечение двуокиси титана 95,3%.Extraction of titanium dioxide 95.3%.

П р е д м е т изобретени PREAMETE OF THE INVENTION

Способ разложени  титановых концентратов путем введени  в них серной кислоты и воздуха с последующим иодогрево.м реакционной массы и применением восстановлени , отличающийс  тем, что, с целью обеспечени  возможности разложени  измеиенных ильменитовых концентратов и повышени  степени извлечени  двуокиси т 1тана, восстановитель ввод т в реакционную массу непосредственно иеред ее подогревом.The method of decomposition of titanium concentrates by introducing sulfuric acid and air into them, followed by heating the reaction mass and applying reduction, characterized in that, in order to ensure the possibility of decomposition of the measured ilmenite concentrates and increasing the recovery of dioxide of 1 tane, the reducing agent is introduced into the reaction mass directly and heated it.

SU1600119A 1970-12-15 1970-12-15 METHOD FOR DECOMPOSITION OF TITANIUM CONCENTRATES SU373257A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU1600119A SU373257A1 (en) 1970-12-15 1970-12-15 METHOD FOR DECOMPOSITION OF TITANIUM CONCENTRATES

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU1600119A SU373257A1 (en) 1970-12-15 1970-12-15 METHOD FOR DECOMPOSITION OF TITANIUM CONCENTRATES

Publications (1)

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SU373257A1 true SU373257A1 (en) 1973-03-12

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0654539A1 (en) * 1993-11-24 1995-05-24 Bayer Ag Process for the preparation of titanium dioxide by the sulphate process
EP0654540A1 (en) * 1993-11-24 1995-05-24 Bayer Ag Preparation of a TiIII-containing solution and its use

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0654539A1 (en) * 1993-11-24 1995-05-24 Bayer Ag Process for the preparation of titanium dioxide by the sulphate process
EP0654540A1 (en) * 1993-11-24 1995-05-24 Bayer Ag Preparation of a TiIII-containing solution and its use

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