SU1518306A1 - Method of producing fine-particle mixed oxide of cobalt (ii) and cobalt (iv) - Google Patents
Method of producing fine-particle mixed oxide of cobalt (ii) and cobalt (iv) Download PDFInfo
- Publication number
- SU1518306A1 SU1518306A1 SU874331760A SU4331760A SU1518306A1 SU 1518306 A1 SU1518306 A1 SU 1518306A1 SU 874331760 A SU874331760 A SU 874331760A SU 4331760 A SU4331760 A SU 4331760A SU 1518306 A1 SU1518306 A1 SU 1518306A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- cobalt
- mixed oxide
- oxide
- specific surface
- producing fine
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 18
- XLJKHNWPARRRJB-UHFFFAOYSA-N cobalt(2+) Chemical compound [Co+2] XLJKHNWPARRRJB-UHFFFAOYSA-N 0.000 title claims abstract description 8
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 title claims description 6
- 229910017052 cobalt Inorganic materials 0.000 title claims description 4
- 239000010941 cobalt Substances 0.000 title claims description 4
- 239000010419 fine particle Substances 0.000 title 1
- 238000001953 recrystallisation Methods 0.000 claims abstract description 6
- IUYLTEAJCNAMJK-UHFFFAOYSA-N cobalt(2+);oxygen(2-) Chemical compound [O-2].[Co+2] IUYLTEAJCNAMJK-UHFFFAOYSA-N 0.000 claims description 4
- IVMYJDGYRUAWML-UHFFFAOYSA-N cobalt(II) oxide Inorganic materials [Co]=O IVMYJDGYRUAWML-UHFFFAOYSA-N 0.000 claims description 4
- 150000002500 ions Chemical class 0.000 claims description 3
- 230000003647 oxidation Effects 0.000 claims description 3
- 238000007254 oxidation reaction Methods 0.000 claims description 3
- -1 III Chemical compound 0.000 claims 3
- 241000337911 Copium Species 0.000 claims 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims 1
- 239000003795 chemical substances by application Substances 0.000 claims 1
- 238000002425 crystallisation Methods 0.000 claims 1
- 230000008025 crystallization Effects 0.000 claims 1
- 238000001035 drying Methods 0.000 claims 1
- 230000003993 interaction Effects 0.000 claims 1
- 229910052760 oxygen Inorganic materials 0.000 claims 1
- 239000001301 oxygen Substances 0.000 claims 1
- 238000005406 washing Methods 0.000 claims 1
- 239000003054 catalyst Substances 0.000 abstract description 5
- DLKQCLIBMWAKOH-UHFFFAOYSA-N [Co+4] Chemical compound [Co+4] DLKQCLIBMWAKOH-UHFFFAOYSA-N 0.000 abstract description 4
- 239000007864 aqueous solution Substances 0.000 abstract description 2
- 229910001429 cobalt ion Inorganic materials 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000000126 substance Substances 0.000 abstract description 2
- 239000000725 suspension Substances 0.000 description 7
- KTVIXTQDYHMGHF-UHFFFAOYSA-L cobalt(2+) sulfate Chemical compound [Co+2].[O-]S([O-])(=O)=O KTVIXTQDYHMGHF-UHFFFAOYSA-L 0.000 description 6
- 239000000243 solution Substances 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- PGMOXNFVYWQBSR-UHFFFAOYSA-N [O].[O].[Co] Chemical compound [O].[O].[Co] PGMOXNFVYWQBSR-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 229940044175 cobalt sulfate Drugs 0.000 description 2
- 229910000361 cobalt sulfate Inorganic materials 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000010992 reflux Methods 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- CBXWGGFGZDVPNV-UHFFFAOYSA-N so4-so4 Chemical compound OS(O)(=O)=O.OS(O)(=O)=O CBXWGGFGZDVPNV-UHFFFAOYSA-N 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G51/00—Compounds of cobalt
- C01G51/04—Oxides
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Catalysts (AREA)
Abstract
Изобретение относитс к области получени катализаторов, примен емых в химической промышленности. С целью упрощени процесса и увеличени удельной поверхности смешанного оксида кобальта (II) и кобальта (IV), пригодного дл производства катализаторов, перекристаллизацию COOOH провод т в водном растворе в присутствии ионов кобальта /II/ при температуре 85-100°С в течение времени не менее 15 ч. 1 табл.The invention relates to the field of catalysts used in the chemical industry. In order to simplify the process and increase the specific surface of the mixed oxide of cobalt (II) and cobalt (IV) suitable for the production of catalysts, the recrystallization of COOOH is carried out in an aqueous solution in the presence of cobalt ions (II) at a temperature of 85-100 ° C for a time not less than 15 hours. 1 tab.
Description
tt
(21)4331760/23-26(21) 4331760 / 23-26
(22)06.10.87(22) 10/06/87
(46) 30.10.89. Бнхп. (С АО(46) 10/30/89. Bnhp. (C AO
(72) А.Ю.Илев, Н.А.Леонтьева,(72) A.Yu. Ilev, N.A. Leontyeva,
Д.Г.Клищев, В.А.Ревнивцева,D.G.Klischev, V.A.Revnivtseva,
А.В.Толчен, Ю.Г.РаспоповA.V.Tolchen, Yu.G.Raspopov
и Н.Г.Краснобайand N.G.Krasnobay
(53) 546.733.732 (088.8)(53) 546.733.732 (088.8)
(56) Укр.хим.журнал, 1977, № 2,(56) Ukr.him.zh., 1977, No. 2,
с.207-208.p.207-208.
(54) СПОСОБ ПОЛУЧЕНИЯ МЕЛКОДИСПЕРСНОГО a-fEUlAHHOrO ОКСИДА КОБАЛЬТА (II) И КОБАЛЬТА (IV) (57) Изобретение касаетс получени катализаторов, примен емых в химической промьшшенности. С цепью упрощени процесса и увеличени удельной поверхности смешанного оксида кобальта (II) и кобальта (IV,пригодного дл производства катализаторов, перекристаллизацию CoOOFT провЬд т в под- ном растворе в присутствии ионов кобальта (II) при температуре 85-100 С в течение времени не менее 15 ч. 1 та бл.(54) METHOD FOR OBTAINING MICRODISPERSE a-fEUlAHHORO COBALT (II) OXIDE AND COBALT (IV) OXIDE (57) The invention relates to the preparation of catalysts used in the chemical industry. With a chain of simplification of the process and an increase in the specific surface of the mixed oxide of cobalt (II) and cobalt (IV suitable for the production of catalysts), the recrystallization of CoOOFT is carried out in a standing solution in the presence of cobalt ions (II) at a temperature of 85-100 ° C for a time not less than 15 h. 1 that bl.
Изобретение относитс к способу получени смешанного оксид,а кобальта (II) и кобальта (IV) (COjO) - вы- coKoanтивного катализатора, примен емого , в частности, при окислении закиси углерода при низких температурах .The invention relates to a process for the preparation of a mixed oxide, and cobalt (II) and cobalt (IV) (COjO) - an ultra-efficient catalyst used, in particular, in the oxidation of carbon monoxide at low temperatures.
Цель изобретени - увеличение удельной поверхности смешанного оксида кобальта (II) и кобальта (IV) и упрощение процесса - достигаетс тем, что перекристаллизацию СоООН провод т в водном растворе, содержащем ионы Со(11), при 85-100 С.The purpose of the invention is to increase the specific surface of the mixed cobalt (II) oxide and cobalt (IV) and simplify the process - this is achieved by recrystallizing the CoOH in an aqueous solution containing Co (11) ions at 85-100 C.
Пр и ме pt.B стекл нную термостойкую колбу емкостью 1 дм, снабженную обратным холодильником t мешалкой , загружают 0,7 дм суспензии СоООН, полученной путем окислени воздуха суспензии Со (ОН),осажденного из раствора CoS04 гидроксидом натри , и нагревают до 95 С, ДалееA glass heat resistant flask with a capacity of 1 dm, equipped with a reflux condenser t, is charged with a 0.7 dm CoOH suspension prepared by air oxidation of a Co (OH) suspension precipitated from sodium hydroxide solution CoS04 and heated to 95 ° C , Further
i Wi W
ввод т в виде сернокислого раствора сульфат кобальта(11)с тем, чтобы его концентраци в растворе составила 0,05 М, и выдерживают в течение 20 ч.cobalt sulfate (11) is introduced in the form of sulfate sulfate so that its concentration in the solution is 0.05 M, and is kept for 20 h.
Полученную суспензию фазово-чисто- го смешанного оксида кобальта (II) и кобальта (IV) (удельна поверхность 30 м /г) отмывают от водорастворимых солей, сушат при 100-120 С и подвергают механическому дисперг ированию.The resulting suspension of phase-pure mixed cobalt (II) oxide and cobalt (IV) (specific surface 30 m / g) is washed of water-soluble salts, dried at 100-120 ° C and subjected to mechanical dispersion.
Пример 2. В стекл нную тер.мостойкую колбу емкостью 1 дм , сна{ женную обратным холодильником и мешалкой, загружают 0,7 дм суспензии СоООН и нагревают до 100 С. Затем в суспензию ввод т раствор сульфата кобальта (II) с тем, чтобы его концен- тг л в суспензии составила О, 1 М, и вьццерживают при ЮО с в течение 15 ч. Полученную суспензию фазово- чистого . (удельна поверхность 40 м7г ) отмывают от водорастворимыхExample 2. A 1 dm glass flask with sleep {reflux condenser and stirrer) flask was charged with 0.7 dm CoOH suspension and heated to 100 C. A solution of cobalt sulfate (II) was then introduced into the suspension so that its concentration in the suspension was O, 1 M, and convicted at a SO for 15 hours. The resulting suspension was phase-pure. (surface area 40 m7g) washed from water-soluble
слcl
0000
соwith
оabout
аbut
солей, сушат при 100-120°С и подвергают механическому диспергированию.salts, dried at 100-120 ° C and subjected to mechanical dispersion.
Характеристики процесса синтеза и полученного продукта приведены в таблице .Characteristics of the synthesis process and the resulting product are shown in the table.
Примеры 3-6 проводили аналогично примеру 1 с использованием различного количества ионов Со(11) , измен температуру и врем термообработки.Examples 3-6 were carried out analogously to example 1 using different amounts of Co (11) ions, changing the temperature and heat treatment time.
Из таблицы следует, что при времени перекристаллизации менее 15 ч целевой продукт характеризуетс низкими потребительскими свойствами, чт объ сн етс неполнотой разложени СоООН.It follows from the table that with a recrystallization time of less than 15 hours, the target product is characterized by low consumer properties, which is explained by the incomplete decomposition of the CoOH.
Способ по изобретению позвол ет получить смешанный оксид кобальта (II) и кобальта (lV)c высокой удельной поверхностью по сравнению с известным способом (см,таблицу),The method according to the invention makes it possible to obtain a mixed oxide of cobalt (II) and cobalt (lV) with a high specific surface area as compared with the known method (see table),
Преимуществом данного способа вл етс также упрощение процесса перекристаллизации СоООН по сравнению с известным способом, где примен етс автоклавное оборудование, ВThe advantage of this method is also the simplification of the process of recrystallization of CoOH in comparison with the known method, where autoclave equipment is used,
Концентраци Concentration
способе по изобретению продукт получают при атмосферном давлении, а также заданной высокой удельной поверхности , что невозможно в известном способе вследствие высокой температуры процесса перекристаллизации и образовани при этом частиц с низкой удельной поверхностью.In the method according to the invention, the product is obtained at atmospheric pressure, as well as a predetermined high specific surface, which is impossible in the known method due to the high temperature of the recrystallization process and the formation of particles with low specific surface.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU874331760A SU1518306A1 (en) | 1987-10-06 | 1987-10-06 | Method of producing fine-particle mixed oxide of cobalt (ii) and cobalt (iv) |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU874331760A SU1518306A1 (en) | 1987-10-06 | 1987-10-06 | Method of producing fine-particle mixed oxide of cobalt (ii) and cobalt (iv) |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU1518306A1 true SU1518306A1 (en) | 1989-10-30 |
Family
ID=21337695
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU874331760A SU1518306A1 (en) | 1987-10-06 | 1987-10-06 | Method of producing fine-particle mixed oxide of cobalt (ii) and cobalt (iv) |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU1518306A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2135416C1 (en) * | 1993-08-12 | 1999-08-27 | Х.К. Штарк ГмбХ унд КО КГ | Powder cobalt component and method of preparation thereof |
| WO2006056610A1 (en) * | 2004-11-29 | 2006-06-01 | Shell Internationale Research Maatschappij B.V. | Catalytic process for the conversion of co (ii)hydroxide in co (iii)oxidehydroxide |
-
1987
- 1987-10-06 SU SU874331760A patent/SU1518306A1/en active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2135416C1 (en) * | 1993-08-12 | 1999-08-27 | Х.К. Штарк ГмбХ унд КО КГ | Powder cobalt component and method of preparation thereof |
| WO2006056610A1 (en) * | 2004-11-29 | 2006-06-01 | Shell Internationale Research Maatschappij B.V. | Catalytic process for the conversion of co (ii)hydroxide in co (iii)oxidehydroxide |
| US8062620B2 (en) | 2004-11-29 | 2011-11-22 | Shell Oil Company | Catalytic process for the conversion of Co (II)hydroxide in Co (III)oxidehydroxide |
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