SU61020A1 - The method of obtaining oxide compounds of chromium - Google Patents
The method of obtaining oxide compounds of chromiumInfo
- Publication number
- SU61020A1 SU61020A1 SU26628K SU26628K SU61020A1 SU 61020 A1 SU61020 A1 SU 61020A1 SU 26628 K SU26628 K SU 26628K SU 26628 K SU26628 K SU 26628K SU 61020 A1 SU61020 A1 SU 61020A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- chromium
- oxide compounds
- compounds
- obtaining oxide
- obtaining
- Prior art date
Links
Landscapes
- Catalysts (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
Предлагаемый способ относитс к области получени окисных соединений хрома при изготовлении хромокислых катализаторов и дл других целей.The proposed method relates to the field of producing oxide compounds of chromium in the manufacture of chromic acid catalysts and for other purposes.
Предлагаемый сиособ получени окисных соединений хрома заключаетс в том, что монохроматные растворы (растворы щелочных, щелочноземельных и иных подход щих монохроматов) обрабатываютс сернистой КИСЛОТОЙ, получающейс в результате протекающей реакции восстановлени , осадки двойных соединений шести- и трехвалентного хрома отдел ютс и отмываютс от остающихс в растворе щелочных (или соответственных) солей обычным способом.The proposed method for producing chromium oxide compounds is that monochromatic solutions (solutions of alkaline, alkaline earth and other suitable monochromates) are treated with sulfuric acid, resulting from the reduction reaction, and the precipitated double compounds of hexa- and trivalent chromium are separated and washed away from the remaining solution of alkaline (or corresponding) salts in the usual way.
Сущность предлагаемого способа заключаетс в том, что при взаимодействии монохромата с сернистой кислотой протекают реакции могущие схематически быть изображены следующим образом:The essence of the proposed method lies in the fact that the interaction of monochromat with sulfuric acid reactions can be schematically depicted as follows:
3Me2CrO4-f3SO2 Cr2O3 + CrO3+Me2Sd4 2Me2CrO4 + 3SO2 + Cr2SOi(OH)H-2Me2SO.i3Me2CrO4-f3SO2 Cr2O3 + CrO3 + Me2Sd4 2Me2CrO4 + 3SO2 + Cr2SOi (OH) H-2Me2SO.i
Практически можно рассматривать пр.одукты реакций, касл соединени Сг2Оз и СгОз в разнообразных, завис щих от условий реакции , соотношени х, т. е. как (Сг2Оз)х (СгОз)у .It is practically possible to consider the products of the reactions, the casts of the compounds Cr2Oz and CgOz in various, depending on the reaction conditions, ratios, i.e., as (Cr2O3) x (CgO3) y.
Скорость и нолнота реакции таковы, что вплоть до полного восстановлени всего шестивалентного хрома нельз открыть присут1гтви сернистой кислоты в отход щих газах.The reaction speed and completeness are such that up to the complete reduction of all hexavalent chromium, it is impossible to open the presence of sulfurous acid in the exhaust gases.
Такой способ дает возможность получени соединений хрома, нос щих общее название хроми-хроматов, до сих пор изученных совершенно недостаточно. Все известные до сих пор способы получени их базируютс на применении бихроматов н малодоступных, дорогих дл промышленных масштабов реагентов, как например, тиосульфата , аммонийных хроматов, азотнокислого хрома и т. д.Such a method makes it possible to obtain chromium compounds, which have the general name chromium chromates, which have not yet been studied completely. All hitherto known methods for their preparation are based on the use of dichromates and inaccessible, expensive for industrial scale reagents, such as thiosulfate, ammonium chromates, chromium nitrate, etc.
(Получаемые соединени могут быть применены, например, в качестве катализаторов в некоторых производствах, но в основном как(The resulting compounds can be used, for example, as catalysts in some industries, but mostly as
Способ получени oKi-f.:iibix соединепич хрома, отличающийс тем, что 1зосстапоБлени10 обычлыми npncNiaMiH подвергают двойные соединени тппа (СгЮз), , (СгОз) ,,. .The method of obtaining oKi-f.: Iibix is a compound of chromium, characterized in that 1 stanza 10 ordinary npnc Nia MiH is subjected to double compounds tppa (CrHyy),, (CgO3) ,,. .
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU26628A SU62191A1 (en) | 1939-09-21 | 1939-09-21 | The method of obtaining oxide compounds of chromium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU61020A1 true SU61020A1 (en) | 1941-11-30 |
Family
ID=20436113
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU26628K SU61020A1 (en) | 1939-09-21 | 1939-09-21 | The method of obtaining oxide compounds of chromium |
| SU26628A SU62191A1 (en) | 1939-09-21 | 1939-09-21 | The method of obtaining oxide compounds of chromium |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU26628A SU62191A1 (en) | 1939-09-21 | 1939-09-21 | The method of obtaining oxide compounds of chromium |
Country Status (1)
| Country | Link |
|---|---|
| SU (2) | SU61020A1 (en) |
-
1939
- 1939-09-21 SU SU26628K patent/SU61020A1/en active
- 1939-09-21 SU SU26628A patent/SU62191A1/en active
Also Published As
| Publication number | Publication date |
|---|---|
| SU62191A1 (en) | 1975-01-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4003978A (en) | Method for treating ammonia-containing gases | |
| Barraclough et al. | 713. The stretching frequencies of metal–oxygen double bonds | |
| Duke | Theory and kinetics of specific oxidation. II. The periodate-glycol reaction | |
| SU61020A1 (en) | The method of obtaining oxide compounds of chromium | |
| Saito et al. | 918. Co-ordination compounds between ethylenediaminetetra-acetic acid and gallium, indium, and thallium | |
| Nikolenko et al. | The calculation of the thermodynamic equilibrium in Fe 3+/MoO 4 2−/H+(OH−)/H 2 O system and determination of reasonable conditions for iron molybdate deposition | |
| Baer et al. | 633. The decomposition of hydrgen peroxide by ceric salts. Part I. The action of ceric sulphate | |
| Willard et al. | Direct determination of chromium and vanadium in steel o-Phenanthroline Ferrous Complex as Indicator | |
| Brown | 657. The preparation, properties, structure, and spectra of 12-tungstochromic (III) acid | |
| US2903334A (en) | Preparation of uranium trioxide | |
| Grant et al. | The effect of heat on solutions of cerium (iv) sulphate in sulphuric acid and some analytical implications | |
| US2999003A (en) | Leather tanning agent and process | |
| Nutten | Studies in the separation of phosphate in elementary qualitative analysis by the titanium method: Cation Recoveries | |
| Salaria | The application of thiosalts in analysis: Estimations based on decomposition of thiosalts part d. estimation of selenium and tellurium in selenates and tellurates | |
| GB1245036A (en) | Improvements in or relating to the preparation of catalysts | |
| US3567655A (en) | Method of producing a low-temperature catalyst for the conversion of carbon monoxide with steam | |
| GB1377211A (en) | Catalyst and oxidation process | |
| US1225374A (en) | Process for manufacturing metallic chromates. | |
| SU403631A1 (en) | METHOD OF OBTAINING AMMONIUM BICHROMATE-MOLYBDATE | |
| Kenny et al. | Stoichiometric study of the chromium (II)-chromium (VI) reaction in acidic aqueous chloride media | |
| Tannenbaum et al. | Reduction of Chromium (VI) Compounds by Liquid Ammonia and by Liquid Ammonia Solutions of Potassium Amide1, 2 | |
| GB191111726A (en) | Improvements in the Production of Chrome Pigments. | |
| SU472281A1 (en) | Method for separating metallic iron from reduced materials | |
| Rao et al. | Analytical applications of the photochemical action of light: Determination of oxalic acid by photo-oxidation in the presence of ferric salts | |
| SU20076A1 (en) | Method of producing phosphoric acid and hydrogen |