SU191490A1 - Method for producing a catalyst for the process of vapor-phase production of furan - Google Patents
Method for producing a catalyst for the process of vapor-phase production of furanInfo
- Publication number
- SU191490A1 SU191490A1 SU1037025A SU1037025A SU191490A1 SU 191490 A1 SU191490 A1 SU 191490A1 SU 1037025 A SU1037025 A SU 1037025A SU 1037025 A SU1037025 A SU 1037025A SU 191490 A1 SU191490 A1 SU 191490A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- catalyst
- furan
- vapor
- producing
- phase production
- Prior art date
Links
- 239000003054 catalyst Substances 0.000 title description 11
- YLQBMQCUIZJEEH-UHFFFAOYSA-N furane Chemical compound C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 title description 4
- 238000000034 method Methods 0.000 title description 4
- 238000004519 manufacturing process Methods 0.000 title description 3
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 9
- 239000000243 solution Substances 0.000 description 7
- 239000000203 mixture Substances 0.000 description 6
- 239000001184 potassium carbonate Substances 0.000 description 5
- 229910000027 potassium carbonate Inorganic materials 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- SQQMAOCOWKFBNP-UHFFFAOYSA-L Manganese(II) sulfate Chemical compound [Mn+2].[O-]S([O-])(=O)=O SQQMAOCOWKFBNP-UHFFFAOYSA-L 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- HCHKCACWOHOZIP-UHFFFAOYSA-N zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 4
- 239000011701 zinc Substances 0.000 description 4
- 229910052725 zinc Inorganic materials 0.000 description 4
- NWONKYPBYAMBJT-UHFFFAOYSA-L Zinc sulfate Chemical compound [Zn+2].[O-]S([O-])(=O)=O NWONKYPBYAMBJT-UHFFFAOYSA-L 0.000 description 3
- RTKOBJLAEACCQP-UHFFFAOYSA-M [NH4+].[Cr](=O)(=O)(O)O Chemical compound [NH4+].[Cr](=O)(=O)(O)O RTKOBJLAEACCQP-UHFFFAOYSA-M 0.000 description 3
- VYZAMTAEIAYCRO-UHFFFAOYSA-N chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 3
- 229910052804 chromium Inorganic materials 0.000 description 3
- 239000011651 chromium Substances 0.000 description 3
- 239000011702 manganese sulphate Substances 0.000 description 3
- 235000007079 manganese sulphate Nutrition 0.000 description 3
- 239000002244 precipitate Substances 0.000 description 3
- 239000011686 zinc sulphate Substances 0.000 description 3
- 235000009529 zinc sulphate Nutrition 0.000 description 3
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonium chloride Substances [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- VHUUQVKOLVNVRT-UHFFFAOYSA-N ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 2
- 235000011114 ammonium hydroxide Nutrition 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- MFFLHUNPSHBKRG-UHFFFAOYSA-P diazanium;dioxido(dioxo)chromium Chemical compound [NH4+].[NH4+].[O-][Cr]([O-])(=O)=O MFFLHUNPSHBKRG-UHFFFAOYSA-P 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- IPJKJLXEVHOKSE-UHFFFAOYSA-L manganese(2+);dihydroxide Chemical class [OH-].[OH-].[Mn+2] IPJKJLXEVHOKSE-UHFFFAOYSA-L 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 239000011780 sodium chloride Substances 0.000 description 2
- VQWFNAGFNGABOH-UHFFFAOYSA-K Chromium(III) hydroxide Chemical compound [OH-].[OH-].[OH-].[Cr+3] VQWFNAGFNGABOH-UHFFFAOYSA-K 0.000 description 1
- HYBBIBNJHNGZAN-UHFFFAOYSA-N Furfural Chemical compound O=CC1=CC=CO1 HYBBIBNJHNGZAN-UHFFFAOYSA-N 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000005591 charge neutralization Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 238000005755 formation reaction Methods 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- 229910000468 manganese oxide Inorganic materials 0.000 description 1
- PPNAOCWZXJOHFK-UHFFFAOYSA-N manganese(2+);oxygen(2-) Chemical class [O-2].[Mn+2] PPNAOCWZXJOHFK-UHFFFAOYSA-N 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000012452 mother liquor Substances 0.000 description 1
- 230000001264 neutralization Effects 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 230000003472 neutralizing Effects 0.000 description 1
- 239000011541 reaction mixture Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Description
Известен способ получени катализатора дл процесса парофазного получени фурана, состо щий в том, что к раствору сернокислых солей цинка и марганца прибавл ют раствор хромовокислого аммони с последующей нейтрализацией реакционной массы 25%-ным раствором аммиака и разбавлением водой.A known method for the preparation of a catalyst for the vapor-phase furan preparation process consists in adding an ammonium chromic acid solution to a solution of zinc and manganese sulphate, followed by neutralization of the reaction mixture with a 25% ammonia solution and dilution with water.
Отфильтрованный осадок сушат при 100°С, перетирают и смешивают с тонкоизмельченным углекислым калием, а затем с водой.The filtered precipitate is dried at 100 ° C, ground and mixed with finely divided potassium carbonate, and then with water.
Из пасты формуют зерна, которые сушат при ПО-120 С и прокаливают при 220- 400° С.Grains are dried from the paste, which are dried at PO-120 C and calcined at 220-400 ° C.
Предложенный способ отличаетс от известного тем, что промотор - углекислый калий - ввод т в насту, содержащую гидроокиси хрома, цинка и марганца в виде водного раствора.The proposed method differs from the known one in that the promoter, potassium carbonate, is introduced into a crust containing chromium, zinc and manganese hydroxides in the form of an aqueous solution.
Это позвол ет повысить активность катализатора , упростить технологию нроцесса и улучшить услови труда.This makes it possible to increase the activity of the catalyst, simplify the technology of the process and improve working conditions.
В аппарат с механической мешалкой загружают 8,63 кг сернокислого цинка, 1,56 кг сернокислого марганца (расчет на безводные соли ) и 33 ./г воды. Полученную смесь перемешивают до полного растворени солей. В другой аппарат загружают 9,76 кг хромовокислого аммони и 33 л воды. Смесь нагревают до 50-70° С и нере.мешивают до раствореци хромата аммони . После охлаждени раствор8.63 kg of zinc sulphate, 1.56 kg of manganese sulphate (calculated on anhydrous salts) and 33 g of water are loaded into the apparatus with a mechanical stirrer. The resulting mixture is stirred until the salts are completely dissolved. 9.76 kg of ammonium chromate and 33 liters of water are loaded into another apparatus. The mixture is heated to 50-70 ° C and not stirred until the ammonium chromate is dissolved. After cooling the solution
хромовокислого аммони приливают тонкой струей к непрерывно перемешиваемому раствору сернокислых цинка и марганца. При этом вынадают бурые хлопь . К полученной смесн при работаюшей мешалке приливают 7 л 25%-ного водного раствора аммиака, а затем 75 л дистиллированной воды. Перемешивание продолжают еще 10-15 мин, после чего смесь оставл ют иа 2-3 час.ammonium chromic acid is poured in a thin stream to a continuously stirred solution of zinc and manganese sulphate. At the same time give out brown flakes. To the mixture obtained, while working the mixer, 7 liters of 25% aqueous ammonia solution are added, followed by 75 liters of distilled water. Stirring is continued for another 10-15 minutes, after which the mixture is left for 2-3 hours.
Взвесь катализатора в маточном растворе спускают на вакуумный фильтр. Осадок гидроокисей хрома, цинка и марганца с фильтра влажностью не более 20% перенос т в шнековый смеситель, в котором его смешивают с раствором 0,12 кг углекислого кали в 0,6 л воды. Смешанную с промотором массу перенос т на противни из нержавеющей стали, которые помещают в электропечь дл высушивани при 150° С и прокаливают при 230- 250° С до прекращени выделени аммнака, а затем в течение 4 час при 400° С. Из вышеЗказанных количеств исходиых компопентов получают около 8 кг прокаленного норошка катализатора.A suspension of catalyst in the mother liquor is lowered to a vacuum filter. The precipitate of chromium, zinc and manganese hydroxides from the filter with a moisture content of not more than 20% is transferred to a screw mixer, in which it is mixed with a solution of 0.12 kg of potassium carbonate in 0.6 l of water. The mass mixed with the promoter is transferred to stainless steel trays, which are placed in an electric furnace for drying at 150 ° C and calcined at 230-250 ° C until the ammonia release stops, and then for 4 hours at 400 ° C. Components receive about 8 kg of calcined catalyst powder.
Прокаленный порошок катализатора нротнрают через сито, смешивают с 3-5% графита и таблетируют. Получают таблетки диаметром 5-6 мм и высотой 4-6 мм. Насынной вес таблетированного катализатора 1,3-1,6 кг/л.The calcined catalyst powder is passed through a sieve, mixed with 3-5% graphite and preformed. Get tablets with a diameter of 5-6 mm and a height of 4-6 mm. The net weight of the preformed catalyst is 1.3-1.6 kg / l.
Сравнительна оценка активности катализаторов из смеси окислов хрома, цинка и марганца , цриготовленных с сухим и влажным введением промотора (К2СОз), приведена в таблице.A comparative assessment of the activity of catalysts from a mixture of chromium, zinc and manganese oxides prepared with dry and wet introduction of a promoter (K2COz) is given in the table.
Активность катализатора в реакции образовани фурана из фурфуролаCatalyst activity in the furan formation reaction from furfural
Предмет изобретени Subject invention
Способ получени катализатора дл процесса парофазного получени фурана путем смешени раствора хромовокислого аммони и смеси растворов сернокислых солей ципка и марганца с последующей нейтрализацией реакционной массы аммиаком, обработкой полученного при этом осадка промотором - углекислым калием, сушкой и прокаливанием при повышеппой температуре, отличающийс тем, что, с целью повышени активности катализатора , упрощени технологии процесса и улучшени условий труда, промотор - углекислый калий - ввод т непосредственно в осадок - пасту, содержащую гидроокиси хрома , цинка и марганца, в виде водного раствора .A method for preparing a catalyst for the vapor-phase production of furan by mixing a solution of ammonium chromic acid and a mixture of solutions of tsipka and manganese sulphate salts, followed by neutralizing the reaction mass with ammonia, treating the resulting precipitate with a potassium carbonate promoter, drying and calcining at an elevated temperature, characterized by in order to increase the catalyst activity, simplify the process technology and improve working conditions, the promoter — potassium carbonate — is introduced directly into the sediment - a paste containing chromium hydroxide, zinc and manganese, in the form of an aqueous solution.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU191490A1 true SU191490A1 (en) |
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