SU97055A1 - The method of obtaining sodium monochromat - Google Patents
The method of obtaining sodium monochromatInfo
- Publication number
- SU97055A1 SU97055A1 SU301A SU446761A SU97055A1 SU 97055 A1 SU97055 A1 SU 97055A1 SU 301 A SU301 A SU 301A SU 446761 A SU446761 A SU 446761A SU 97055 A1 SU97055 A1 SU 97055A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- obtaining sodium
- monochromat
- sodium monochromat
- liquor
- obtaining
- Prior art date
Links
- 238000000034 method Methods 0.000 title description 4
- PXLIDIMHPNPGMH-UHFFFAOYSA-N sodium chromate Chemical compound [Na+].[Na+].[O-][Cr]([O-])(=O)=O PXLIDIMHPNPGMH-UHFFFAOYSA-N 0.000 title description 2
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 229910052804 chromium Inorganic materials 0.000 description 2
- 239000011651 chromium Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 239000010802 sludge Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- PNRUWWGALPRXJC-UHFFFAOYSA-K [Cl-].[Na+].[Cr](=O)(=O)(O)O Chemical compound [Cl-].[Na+].[Cr](=O)(=O)(O)O PNRUWWGALPRXJC-UHFFFAOYSA-K 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- KRVSOGSZCMJSLX-UHFFFAOYSA-L chromic acid Substances O[Cr](O)(=O)=O KRVSOGSZCMJSLX-UHFFFAOYSA-L 0.000 description 1
- SOCTUWSJJQCPFX-UHFFFAOYSA-N dichromate(2-) Chemical compound [O-][Cr](=O)(=O)O[Cr]([O-])(=O)=O SOCTUWSJJQCPFX-UHFFFAOYSA-N 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- AWJWCTOOIBYHON-UHFFFAOYSA-N furo[3,4-b]pyrazine-5,7-dione Chemical compound C1=CN=C2C(=O)OC(=O)C2=N1 AWJWCTOOIBYHON-UHFFFAOYSA-N 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 235000011121 sodium hydroxide Nutrition 0.000 description 1
- 229910021653 sulphate ion Inorganic materials 0.000 description 1
Landscapes
- Inorganic Compounds Of Heavy Metals (AREA)
Description
2(F,O-CrnO,}-r8NaC гЗтгО-. 4:Na.CTO, ; Fe.O, :--ICI.,2 (F, O-CrnO,} - r8NaC r3TrO-. 4: Na.CTO,; Fe.O,: - ICI.,
Полученный илав выщелачиваетс гор чей водой или слабыми nj,eлокамп . Щелока отдел ютс от шлама фильтрацией плп отстаивамнем . Шлам возвращаетс в цикл, а щелока поступают на упарку с последующим переводом монохромата в бихромат действием серной кислоты или углекислого газа. Степепь использовапи Сг,О; составл ет 75-800/0,The resulting ilava is leached with hot water or weak nj, elocamp. The liquor is separated from the sludge by filtering plp by settling it. The sludge is recycled, and the liquor is fed to the pack with the subsequent conversion of the monochromat to the dichromate by the action of sulfuric acid or carbon dioxide. Degree of use is Cr, O; is 75-800 / 0,
Преимуп ества хлоридного способа получени монохромата натри перед щелочным заключаетс в следующем:The advantages of the sodium chloride mono chromate method over alkaline are as follows:
1.Иснользование дешевого сырь -поваренной соли вместо дорогих и дефицитных соды илн едкого натра;1. Use of cheap raw materials - steamed salt instead of expensive and scarce soda or caustic soda;
2.Упрощенне технологической схемы производства в св зи с уменьшением числа onepauHii (сатураци щелоков, отделение сульфата и др.) и лнквидацией операций по измельчению и обжигу наполнител ;2. Simplification of the technological scheme of production in connection with a decrease in the number of onepauHii (saturation of liquor, separation of sulphate, etc.) and the elimination of grinding and roasting operations of the filler;
о. 1овы иение растворнмости плава и чнсюты получаемого раствора .about. Evolution of the solubility of the solution and the mixture of the resulting solution.
Предмет изобретепи Subject invention
Способ полученн монохромата натри путем спекани хромовой )уды с поваренной солью в окислительной среде, с п:)следуюп1,им вьпцелачиванием и переводом монох{ )омата в бнх 1омат, отличаю:дийс тем, что, с целью упро1цен;1 технологии, повышени растворнмости плава и удешевлени производства, примен ют 2-компонентную шихту из хромовоГ( руды и новаренно соли в соотношении 1 : 1,25, а процесс ведут в одну стадию пр1 температуре около 1000 .The method of sodium monochromate obtained by sintering chromic acid with sodium chloride in an oxidizing environment, with the following: water and cheaper production, apply a 2-component mixture of chromium (ore and nova salt in the ratio of 1: 1.25, and the process is carried out in one stage at a temperature of about 1000.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU301A SU97055A1 (en) | 1951-08-18 | 1951-08-18 | The method of obtaining sodium monochromat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU301A SU97055A1 (en) | 1951-08-18 | 1951-08-18 | The method of obtaining sodium monochromat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU97055A1 true SU97055A1 (en) | 1953-11-30 |
Family
ID=48948913
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU301A SU97055A1 (en) | 1951-08-18 | 1951-08-18 | The method of obtaining sodium monochromat |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU97055A1 (en) |
-
1951
- 1951-08-18 SU SU301A patent/SU97055A1/en active
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