SU676551A1 - Sodium-chromium silicate producing method - Google Patents
Sodium-chromium silicate producing methodInfo
- Publication number
- SU676551A1 SU676551A1 SU731944467A SU1944467A SU676551A1 SU 676551 A1 SU676551 A1 SU 676551A1 SU 731944467 A SU731944467 A SU 731944467A SU 1944467 A SU1944467 A SU 1944467A SU 676551 A1 SU676551 A1 SU 676551A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- sodium
- chromium
- mixture
- silicate
- producing method
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 13
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 title claims description 11
- HEUMNKZPHGRBKR-UHFFFAOYSA-N [Na].[Cr] Chemical compound [Na].[Cr] HEUMNKZPHGRBKR-UHFFFAOYSA-N 0.000 title claims description 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 14
- 239000000203 mixture Substances 0.000 claims description 8
- KIEOKOFEPABQKJ-UHFFFAOYSA-N sodium dichromate Chemical compound [Na+].[Na+].[O-][Cr](=O)(=O)O[Cr]([O-])(=O)=O KIEOKOFEPABQKJ-UHFFFAOYSA-N 0.000 claims description 6
- 239000000377 silicon dioxide Substances 0.000 claims description 5
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 4
- 239000011651 chromium Substances 0.000 claims description 4
- 235000012239 silicon dioxide Nutrition 0.000 claims description 4
- 229910052804 chromium Inorganic materials 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 229910052814 silicon oxide Inorganic materials 0.000 claims description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims 1
- 229940090961 chromium dioxide Drugs 0.000 claims 1
- AYTAKQFHWFYBMA-UHFFFAOYSA-N chromium(IV) oxide Inorganic materials O=[Cr]=O AYTAKQFHWFYBMA-UHFFFAOYSA-N 0.000 claims 1
- LIVNPJMFVYWSIS-UHFFFAOYSA-N silicon monoxide Chemical class [Si-]#[O+] LIVNPJMFVYWSIS-UHFFFAOYSA-N 0.000 claims 1
- 239000011734 sodium Substances 0.000 claims 1
- 229910001948 sodium oxide Inorganic materials 0.000 claims 1
- 239000000049 pigment Substances 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 3
- 229910052681 coesite Inorganic materials 0.000 description 3
- 229910052906 cristobalite Inorganic materials 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910052682 stishovite Inorganic materials 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 229910052905 tridymite Inorganic materials 0.000 description 3
- JHWIEAWILPSRMU-UHFFFAOYSA-N 2-methyl-3-pyrimidin-4-ylpropanoic acid Chemical compound OC(=O)C(C)CC1=CC=NC=N1 JHWIEAWILPSRMU-UHFFFAOYSA-N 0.000 description 2
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 239000004115 Sodium Silicate Substances 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 238000002441 X-ray diffraction Methods 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- ZCDOYSPFYFSLEW-UHFFFAOYSA-N chromate(2-) Chemical compound [O-][Cr]([O-])(=O)=O ZCDOYSPFYFSLEW-UHFFFAOYSA-N 0.000 description 1
- 150000001845 chromium compounds Chemical class 0.000 description 1
- 238000000975 co-precipitation Methods 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 238000004534 enameling Methods 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
- -1 ferrous metals Chemical class 0.000 description 1
- 150000004679 hydroxides Chemical class 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000010454 slate Substances 0.000 description 1
- PXLIDIMHPNPGMH-UHFFFAOYSA-N sodium chromate Chemical compound [Na+].[Na+].[O-][Cr]([O-])(=O)=O PXLIDIMHPNPGMH-UHFFFAOYSA-N 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
- 229910052911 sodium silicate Inorganic materials 0.000 description 1
- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- 235000011152 sodium sulphate Nutrition 0.000 description 1
- AKHNMLFCWUSKQB-UHFFFAOYSA-L sodium thiosulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=S AKHNMLFCWUSKQB-UHFFFAOYSA-L 0.000 description 1
- 235000019345 sodium thiosulphate Nutrition 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Landscapes
- Pigments, Carbon Blacks, Or Wood Stains (AREA)
Description
1one
Изобретение относитс к способу получени натрийхромового силиката NaCrSi2O6, наход п1,его применение в качестве пигмента в производстве цветных нементов, дл окрашивани шлакоситаллов при эмалированни металлических изделий, дл меловой и известковой побелки стен.The present invention relates to a method for producing NaCrSi2O6 sodium chromium silicate, which is found in P1, its use as a pigment in the production of non-ferrous metals, for dyeing slag metal slate for enameling metal products, for chalk and lime whitewashing of walls.
Известен способ получени зеленого хромсилнкатного пигмента - натрийхромового силиката - путем обработки хроматных растворов тиосульфатом натри или сернистым натрием в присутствии силиката натри с последующим отделением продукта соосажденн , промывкой его и прокаливанием 1. Недостатками такого способа вл етс сложна технологи , включающа стадии восстановительного осаждени и хроматно-щелочную обработку и выход кристаллической фазы NaCrSi206 невысок. Полнота тона 40-42%.A method for producing green chromosilicate pigment, sodium chromium silicate, is known by treating chromate solutions with sodium thiosulfate or sodium sulphate in the presence of sodium silicate, followed by separation of the product by co-precipitation, washing and calcining it. The disadvantages of this method are complex technology, including stages of reducing precipitation and chromator. Alkaline treatment and the yield of the crystalline phase NaCrSi206 is low. Completeness of tone is 40-42%.
Наиболее близким к изобретению по технической сущностн и достигаемому результату вл етс способ получени натрийхромового силиката путем термической обработки ири 980-1000°С смеси гидроксидов натри , хрома и кремни , вз тых в соотнощении 1:1:4, соответствующем NaCrSi206The closest to the invention according to the technical essence and the achieved result is the method of producing sodium chromium silicate by heat treating a mixture of sodium hydroxide, chromium and silicon, taken in a 1: 1: 4 ratio, corresponding to NaCrSi206
2.2
Однако известный способ не обеспечивает достаточного выхода кристаллической However, the known method does not provide sufficient yield of crystalline
фазы натрийхромового силиката. Получающийс по такому способу пигмент имеет полноту тона 47%.sodium chromium silicate phases. The pigment produced by this method has a tone completeness of 47%.
Цель изобретени - повышение выхода кристаллической фазы в натрийхромовом силикате.The purpose of the invention is to increase the yield of the crystalline phase in sodium chromium silicate.
Поставленна цель достигаетс описываемым способом получени натрнйхромового силиката путем термообработки смеси соединений, содержащих хром и двуокись кремни , при 1020-1100°С с использованием в качестве хромсодержащего соединени бихромата натри и введении его в смесь в мольном соотношении к. двуокиси кремни 1 : 4-4,08.The goal is achieved by the described method of obtaining sodium chromate silicate by heat treatment of a mixture of compounds containing chromium and silica, at 1020-1100 ° C using sodium dichromate as a chromium compound and introducing it into a mixture in a molar ratio to silica 1: 4-4 , 08.
Предлагаемый способ обеспечивает получение продукта, представл ющего по данным химического анализа чистый NaCrSi206 и содержащий кристаллической фазы на 10% больше по рентгенографическому анализу, чем полученный силикат по известному способу. Полученный натрийхромовый силикат имеет зеленый цвет с нолнотой тона 56% и обладает пигментными свойствами.The proposed method provides a product that, according to chemical analysis, is pure NaCrSi206 and contains a crystalline phase 10% more by X-ray analysis than the resulting silicate by a known method. The sodium chromium silicate obtained is green with a 56% full tone and has pigment properties.
Технологи способа состоит в следующем . Шихту, состо щую из бихромата натри и окисных или гидроокисных соединений кремни , прокаливают при 1020- 1100°С в течение 1ч.The technology of the method is as follows. The mixture consisting of sodium bichromate and silicon oxide or hydroxide compounds is calcined at 1020-1100 ° C for 1 hour.
Полученный спек выщелачивают, измельчают , отмывают от растворимых примесей и сушат.The obtained sinter leached, crushed, washed from soluble impurities and dried.
Пример 1. 50 г кварца, содержащего 99,9% Si02, тщательно перемещивают с 54,4 г бихромата натри в пересчете на 100% Ыа2Сг2О7, далее полученную смесь, в которой мольное соотнощепие Ыа2Сг2О7 : : SiO2 равно 1 : 4, прокаливают при 1100°С 1 ч. Спек выщелачивают, отмывают от растворимых солей и сушат при 100°С. Полученный продукт по химическому и рептгенофазовомуанализусоответствуетExample 1. 50 g of quartz containing 99.9% Si02 are carefully transferred from 54.4 g of sodium bichromate in terms of 100% Na2Cr2O7, then the resulting mixture, in which the molar ratio of Na2Cr2O7: SiO2 is 1: 4, is calcined at 1100 ° C for 1 h. The sintered solution is leached, washed of soluble salts and dried at 100 ° C. The resulting product by chemical and repgenesis analysis corresponds to
ЫаСг512Об, имеет зеленый цвет с интенсивностью окраски 56%.NaSr512Ob, has a green color with a color intensity of 56%.
Пример 2. 100 г кремнегел , содержащего 52,5 rSi02, 2,8 г NaF и 44,7 г Н20, тщательно перемешивают с 55,1 г бихромата натри в пересчете на 100% Na2Cr2O7. Полученную смесь, в которой на 1 моль Ма2Сг207 приходитс 4,08 моль SiO2, прокаливают при 1020°С 1 ч. Спек выщелачивают , отмывают от растворимых солей и сушат при 100°С. Полученный пигмент по рентгенофазовому и химическому анализу соответствует NaCrSi2O6 и имеет интенсивность зеленого цвета 56%.Example 2. 100 g of silica gel, containing 52.5 rSi02, 2.8 g of NaF and 44.7 g of H20, are thoroughly mixed with 55.1 g of sodium dichromate in terms of 100% Na2Cr2O7. The resulting mixture, in which 4.08 mol of SiO2 per 1 mol of Ma2Cr207, is calcined at 1020 ° C for 1 hour. The cake is leached, washed of soluble salts, and dried at 100 ° C. The pigment obtained by X-ray phase and chemical analysis corresponds to NaCrSi2O6 and has an intensity of green color of 56%.
Изобретение позвол ет расширить сырьевую базу получени натрийхромового силиката и повышает экономичность процесса преимущественно за счет исключени части исходных компонентов по сравнению с уже известным аналогичным процессом.The invention allows to expand the raw material base for the production of sodium chromium silicate and increases the efficiency of the process mainly due to the exclusion of a part of the initial components as compared to the already known similar process.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU731944467A SU676551A1 (en) | 1973-07-05 | 1973-07-05 | Sodium-chromium silicate producing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU731944467A SU676551A1 (en) | 1973-07-05 | 1973-07-05 | Sodium-chromium silicate producing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU676551A1 true SU676551A1 (en) | 1979-07-30 |
Family
ID=20560125
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU731944467A SU676551A1 (en) | 1973-07-05 | 1973-07-05 | Sodium-chromium silicate producing method |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU676551A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0014408A3 (en) * | 1979-02-08 | 1980-09-17 | Bayer Ag | Process for preparing "kosmochlor" pigments (sodium chromium double silicate)and use thereof |
| EP0057399A1 (en) * | 1981-02-04 | 1982-08-11 | Bayer Ag | Process for the production of Cr-containing clinopyroxene phases and their application |
-
1973
- 1973-07-05 SU SU731944467A patent/SU676551A1/en active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0014408A3 (en) * | 1979-02-08 | 1980-09-17 | Bayer Ag | Process for preparing "kosmochlor" pigments (sodium chromium double silicate)and use thereof |
| EP0057399A1 (en) * | 1981-02-04 | 1982-08-11 | Bayer Ag | Process for the production of Cr-containing clinopyroxene phases and their application |
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