SU560830A1

SU560830A1 - Method of producing titanium dioxide concentrate

Info

Publication number: SU560830A1
Application number: SU2177563A
Authority: SU
Inventors: Владимир Иванович Погорелов; Ноян Ахмедьярович Байтенев; Наталья Даниловна Клящицкая
Original assignee: Институт Металлургии И Обогащения Ан Казахской Сср
Priority date: 1975-10-02
Filing date: 1975-10-02
Publication date: 1977-06-05

Description

(54) СПОСОБ ПОЛУЧЕНИЯ КОНЦЕНТРАТА ДРУОКИСИ ТИТАНА(54) METHOD OF OBTAINING TITANIUM DRUOXIDE CONCENTRATE

Изобретение относитс к способам получени концентрата двуокиси титана и может быть использовано в технологии титана и его соепим ний.The invention relates to methods for producing a titanium dioxide concentrate and can be used in the technology of titanium and its contact.

Известен способ получени конпентрата двуокиси титана из ильменита, включак дий предварительный восстановительный обжиг ильменита с последующей его обработкой сол ной кислотой. Недостаток способа состоит в его относительной слож- кости, св занной с восстановительным обжигом ильменита.A known method for producing titanium dioxide concentrate from ilmenite, including preliminary reduction calcination of ilmenite followed by treatment with hydrochloric acid. The disadvantage of the method lies in its relative complexity associated with the reductive roasting of ilmenite.

Известен также способ получени концентрата двуокиси титана из ильменита, включающий обработку последнего 38%-ной сол ной кислотой в автоклаве при давлении 2,5атм. Однако отмечаетс сложность процесса, св занна с необходимостью использовани автоклава и концентрированной сол ной кислоты .There is also known a method for preparing a titanium dioxide concentrate from ilmenite, which includes treating the latter with 38% hydrochloric acid in an autoclave at a pressure of 2.5 atm. However, the complexity of the process associated with the need to use an autoclave and concentrated hydrochloric acid is noted.

Известен также способ получени концент рата двуокиси титана из ильменита, включающий обработку последнего 34%-ной сол ной кислотой и электрическое восстановление трехвалентного железа до двухвалентного . Выход двуокиси титана в конечный прдукт примерно 87%. Недостатки способа относительно низкий выход двуокиси титана в конечный продукт и сложность процесса.There is also known a method for producing titanium dioxide concentrate from ilmenite, which includes treating the latter with 34% hydrochloric acid and electrically reducing ferric iron to bivalent. The yield of titanium dioxide in the final product is approximately 87%. The disadvantages of the method is a relatively low yield of titanium dioxide in the final product and the complexity of the process.

По предлагаемому способу ильменит сол ной кислотой обрабатывают в присутствии хлоридов кали и магни , в образующийс раствор ввод т титановую губку и по окончании обработки раствор продувают хлорвоздушной смесью.In the proposed method, the ilmenite is treated with hydrochloric acid in the presence of potassium and magnesium chlorides, a titanium sponge is introduced into the resulting solution, and after the treatment is completed, the solution is purged with an air-air mixture.

Обработку ильменита ведут 15-2О%-нойTreatment of ilmenite are 15-2%

сол ной кислотой в присутствии 1-2% ХЛО-hydrochloric acid in the presence of 1-2% CHLO

ристого магни и 0,5-1,О% хлористого кали от веса исходного ильменита.magnesia and 0.5-1, About% potassium chloride by weight of the original ilmenite.

Хлориды кали и магни ввод т в виде отработанного расплава магниевых электролизеров , а в качестве хлорвоздущной смеск используют отход щие катодные газы маг ниевых электролизеров.Potassium and magnesium chlorides are introduced in the form of spent molten magnesium electrolyzers, and the waste cathode gases of magnesium electrolyzers are used as the chloroform mixture.

Claims

Example. 1000 g of ilmenite concentrate composition, wt.%: Ti 0 43,5O; TheO 37.9; 10.57. treated with hydrochloric acid at 106 s. An unconditioned titanium sponge containing 1.1% iron is introduced into the forming solution. Processing time of ilmenite-hydrochloric acid is 5 hours. At the end of the treatment, the solution is flushed with a chlorine-air mixture, which is similar in composition to the outgoing cathode gases of magnesium electrolytes (15 g / nm C). The feed rate of the mixture was 15.3 nm / hour, the sicking time of the BOM in the final product was 95.62%. The yield of titanium double is in the final npcsavKT 99, and%. Thus, the yield of titanium dioxide in the final product increases and simplifies the process by eliminating the use of concentrated hydrochloric acid and electrolytic reduction of iron. Claim 1. Spos: on obtaining titanium dioxide concentrate from ilmenite, including treatment of the latter with hydrochloric acid and BF Reduction of trivalent iron to divalent in the resulting solution, characterized in that in the presence of potassium and magnesium chlorides, a titanium sponge is introduced into the resulting solution and at the end of the treatment the solution is purged with an air-air mixture.

2. The method according to claim 1, is distinguished by the fact that the treatment of ilmenite is carried out with 15-20% hydrochloric acid in the presence of 1-2% magnesium chloride and 0.5-10% potassium chloride by weight of the initial ilmenite.

3. Method according to paragraphs. 1 and 2, differing from that with the fact that potassium chlorides are introduced in the form of spent molten magnesium electrolyzers, and the cathodic gases from the electrolytic electrolyzers are used as the chlorine-air mixture.