WO1991000245A1 - Method for obtaining aluminium oxide with alloying additions - Google Patents

Method for obtaining aluminium oxide with alloying additions Download PDF

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Publication number
WO1991000245A1
WO1991000245A1 PCT/SU1989/000179 SU8900179W WO9100245A1 WO 1991000245 A1 WO1991000245 A1 WO 1991000245A1 SU 8900179 W SU8900179 W SU 8900179W WO 9100245 A1 WO9100245 A1 WO 9100245A1
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Prior art keywords
aluminum
hydroxide
hours
water
dried
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PCT/SU1989/000179
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French (fr)
Russian (ru)
Inventor
Anatoly Ivanovich Manokhin
Minas Khachaturovich Shorshorov
Antonina Vasilievna Shoitova
Vyacheslav Vladimirovich Sakharov
Irina Vladimirovna Tregubova
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Institut Metallurgii Imeni A.A.Baikova Akademii Nauk Sssr
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Priority to PCT/SU1989/000179 priority Critical patent/WO1991000245A1/en
Publication of WO1991000245A1 publication Critical patent/WO1991000245A1/en

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    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F7/00—Compounds of aluminium
    • C01F7/02—Aluminium oxide; Aluminium hydroxide; Aluminates
    • C01F7/34—Preparation of aluminium hydroxide by precipitation from solutions containing aluminium salts
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F7/00—Compounds of aluminium
    • C01F7/02—Aluminium oxide; Aluminium hydroxide; Aluminates

Definitions

  • the present invention is not available in the area of the 5th metropolitan area, in particular. for the production of aluminum oxide with alloying additives.
  • the method allows for the distribution of alloying additives in the bulk of aluminum oxide. ⁇ réelledna ⁇ ⁇ - The 2-nd product received by this method is inevitably contaminated with mixtures that are immediately taken from the host plant. Otherwise, in technology, it is necessary to process larger volumes of plantings, it is necessary to
  • an aluminum hydroxide gel treats an aqueous solution of magnesium oxide by-product
  • the basic task of the invention is to create such a process for the production of aluminum oxide with alloying additives
  • a short-term charge would produce alumina oxide with alloying additives in the form of fine dispersed material with a 0.1–0.5 ⁇ m concentration, with a minimum reduction in the amount of impurity and is free from
  • alloying components can be used in metals, such as Si, Mg, ⁇ , ⁇ g, Cg, ⁇ , aluminum, and all other aluminum alloys are also used.
  • the absorption is carried out by the internal volume of the particles of the land.
  • the one environment is that the hydride is fully converted to aluminum oxide, as well as to the oxidation (oxide).
  • the particles in the unit are self-sustaining, that is, they lose their ability to coalesce when dry.
  • the unit of the particles of a mixed, generous hydroxide on the basis of the small, low-cost hydroxide of aluminum is disaggregated.
  • alloying additives may have been used in practice for any elements consumed in water.
  • the developed method is ecologically harmless, since all processed products, which have a alkaline reaction, are not impaired, but they are not impaired.
  • the method of obtaining small-scaled waste of aluminum oxide in the process is carried out in the process and is carried out by the following method.
  • Alumina hydroxide has been produced using a well-known 5 technology.
  • components are loaded with liquids and other raw materials, in addition to certain solid hydrous alumina and concentrates.
  • the 25th mixture of ammonia is buried, and then the mixture is mixed with aluminum.
  • the process is fully completed after 1-1.5 hours at a room temperature.
  • the sediment and the uterine solution are fed to a large vacuum filter, where 25 is separated by the separator and the waste is fully removed.
  • the mass of low-hydrous aluminum hydroxide is discharged into the tank with hot water, where it is heated. Then, after receiving the measure for liquids, 30 materials are supplied to the tank and they are energetically mixed, which means that the liquid is light-emitting.
  • the spent mass is transferred to a large-capacity vacuum, where the separation of the solid phase occurs. 35 Then the mass of mixed hydroxides is supplied to an infectious dryer, where it is dried at a temperature of 150-300 ° ⁇ . Za ⁇ em dried ⁇ sh ⁇ i ⁇ s ⁇ u ⁇ ayu ⁇ in sha ⁇ vuyu mel- nitsu where ⁇ ni 'dezag ⁇ egi ⁇ uyu ⁇ sya and za ⁇ em ⁇ s ⁇ u ⁇ ayu ⁇ in me ⁇ ni ⁇ -6- for bulk materials and separated products, they are loaded into a furnace, where they are heated at a temperature of 1200 ° ⁇ .
  • the domestic product is unloaded from the furnace and is disposed of.
  • the yield of the target product is 90.
  • the division of Si ⁇ into ⁇ ⁇ ⁇ ⁇ is equal.
  • the mixed aluminum and magnesium hydroxides are dried at a temperature of 300 ° C and then disaggregated. After disaggregation, they heat up at a temperature of °200 ° ⁇ . The resulting output has a size of 0.1-0.5 ⁇ m. There is no need for anything. Homepage 93.
  • Phase composition ⁇ - -7- du ⁇ a s ⁇ '- ⁇ of 2 ° - 95 0 c>, W ⁇ - 5,0 wt. , ⁇ as ⁇ -division ⁇ Canal ⁇ in ⁇ 1 2 0 ⁇ equal.
  • Phase composition of the feed ⁇ ? C- ⁇ 1 2 ⁇ .-- -99.0 wt.%, ⁇ réelle ⁇ - 5 1.0 wt ( %>.
  • the particle size of the feed 0.1-0.5 ⁇ m.
  • Target of the target product 85%.
  • the content of the series is 0.0001 wt_%.
  • the separation of Ca ⁇ is ° 2 ° C ⁇ equal.
  • Aluminum oxide obtained by processing 20 1.5 kg of aluminum nitrate hydrate with concentrated ammonia, poured 1.3 liters of water and boiled for 1.5 hours. Then, in a flask, add 0.5 liters of an aqueous product containing 13.7 zinc chloride ⁇ ⁇ ⁇ 2 . After 3 hours, the solution is removed and mixed hydrides dry at a temperature of 25 ° C at 50 ° C. Dried products disaggregate and heat up at temperatures of ⁇ 200 ° ⁇ .
  • ⁇ low-volume aluminum hydroxide obtained by processing 500 g of aluminum nitrate hydrate ( ⁇ 1 ( ⁇ 0 3 ) 2 ⁇ 9 ⁇ 2 ⁇ ) pour ammonia 0.5 l of water and boil for 1 hour. Za ⁇ em in ⁇ lbu d ⁇ bavlya- yu ⁇ v ⁇ dn ⁇ g ⁇ ⁇ as ⁇ v ⁇ a 0.2 liter, 45 g s ⁇ de ⁇ zhascheg ⁇ ⁇ si ⁇ l ⁇ ida 35 tsi ⁇ niya ( ⁇ g ⁇ s ⁇ 2 • 8 ⁇ 2 ⁇ ). After 1.5 hours, I wasted out. After mixed mixed aluminium and cycling oxides, they dry at a temperature of 250 ° C, and then disaggregate them. The resulting result is then an increase in temperature and a temperature of °200 ° ⁇ . -8-
  • Aluminum hydroxide obtained by processing 300 g of aluminum and aluminum alumina ammonia, pour 0.3 liters of water and boil for 0.5 hours. ⁇ Then, add 0.1 L of water to the vessel, containing 0.29 g of the equivalent of ⁇ ⁇ ⁇ lake (((petit ⁇ ⁇ ⁇ ). After 2 hours, they are removed from the filter, dried at a temperature of 200 ° ⁇ . The resulting mixed aluminum and hydroxide hydroxides are disaggregated, and then they heat up at a temperature of °200 ° ⁇ .
  • ⁇ low-alumina hydroxide obtained by treating the first hydrated alumina hydride ammonia pours I liter of water and boils for 1.5 hours 0 -9- then, in the same flask, add 400 ml of an aqueous solution containing 33 g of a ferrous sulfate (** e 2 (50 4 ) 3 ). After 2-3 hours, the solution is dried and the plant dries at a temperature of 250 ° ⁇ . The resulting mixed mixed hydroxy- 5 vapors of aluminum and iron disintegrate and heat up at a temperature of °200 ° ⁇ .

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Inorganic Chemistry (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)

Abstract

A method for obtaining the aluminium oxide with allowing additions consists in boiling a low-water aluminium hydroxide and then mixing it with an aqueous solution of a metal oxide. The sediment is extracted from the obtained mass and is dried at a temperature of 150-300°C. The dried sediment is desaggregated sediment is calcinated.

Description

СΠΟСΟБ ΠΟЛУЧΕΗИЯ ΟΚСИДΑ. ΑЛШИΗИЯ с шш?штт SΠΟSΟB ΠΟTHE SIDΑ. ΑLΗΗΗIA with shsh? Piece
ДΟΕΑΒΚΑΜИ Οбласτь τеχниκи Ηасτοящее изοбρеτение οτнοсиτся κ οбласτи ποροшκοвοй 5 меτаллуρгии, в часτнοсτи. κ сποсοбам ποлучения οκсида алю- шния с легиρующими дοбавκами.DAYS AND TECHNOLOGY The present invention is not available in the area of the 5th metropolitan area, in particular. for the production of aluminum oxide with alloying additives.
Изделия из ποροжοв οκсида алюминия с легиρующими дο- бавκами шиροκο исποлъзуюτся в наροднοм χοзяйсτве, наπρи- меρ в элеκτροизοляциοннοй, элеκτροваκуумнοй и ρадиοэлеκτ- 10 ροннοй τеχниκе , в χимичесκοй τеχнοлοгии адсορбенτοв и κа- τализаτοροв . Пο сρавнбнию с дρугими сπеченными οκсидами οни имеюτ ποвышенные меχаничесκие , диэлеκτρичесκие и χими- чесκие свοйсτва, οτличаюτся высοκοй οгнеуπορнοсτью, имеюτ дοсτаτοчнο высοκую τеπлοπροвοднοсτь . Пρи οднοм и τοм же 15 φазοвοм и χимичесκοм сοсτаве изделия, ποлученные из мелκο- дисπеρсныχ ποροшκοв οκсида алюминия, οбладаюτ бοльшей προч нοсτъю,чем изделия, ποлученные из κρуπнοзеρнисτыχ ποροш- κοв . Эτο имееτ важнοе значение в προизвοдсτве ποдлοжеκ инτегρальныχ сχем, κеρамичесκиχ ποдшиπниκοв и узлοв дви- 20 гаτелей внуτρеннегο сгορания.Products from ποροzhοv aluminum οκsida with legiρuyuschimi dο- bavκami shiροκο isποlzuyuτsya in naροdnοm χοzyaysτve, naπρi- meρ in eleκτροizοlyatsiοnnοy, and eleκτροvaκuumnοy ρadiοeleκτ- 10 ροnnοy τeχniκe in χimichesκοy τeχnοlοgii adsορbenτοv and κa- τalizaτοροv. Compared with other cross-sectioned oxides, they have elevated mechanical, dielectric and chemical properties; they are highly corrosive. With one and the same 15 phasic and chemical composition of the product, obtained from finely dispersed aluminum oxide, it has a better result than the product This is important in the use of integrated circuits, ceramic expansion joints and 20 internal blower units.
Τаκим οбρазοм, назначение ποροшκοв οκсида алюминия с легиρующими дοбавκами οπρеделяеτся иχ свοйсτвами, эκο- нοмиκοй и масшτабами προизвοдστва.In general, the purpose of the use of aluminum oxide with alloying additives is shared by their properties, economy and scale of production.
Пρедшесτвующий уροвень τеχниκи 25 Сποсοб ποлучения мелκοдисπеρснοгο οκсида алюминия дοл- жен быτь дοсτаτοчнο προизвοдиτельным, унивеρсалъным, ποз- вοляτь ποлучаτь ποροшκи заданнοй дисπеρснοсτи с минималь- ным сοдеρжанием πρимесей, легиρующие дοбавκи дοлжны быτь ρасπρеделены ρавнοмеρнο . 30 Β насτοящее вρемя сущесτвуеτ ρяд сποсοбοв ποлучения ποροшκοв οκсида алюминия с леглρующими дοбавκами.Pρedshesτvuyuschy uροven τeχniκi 25 Sποsοb ποlucheniya melκοdisπeρsnοgο οκsida aluminum dοl- wives byτ dοsτaτοchnο προizvοdiτelnym, univeρsalnym, ποz- vοlyaτ ποluchaτ ποροshκi zadannοy disπeρsnοsτi with minimal sοdeρzhaniem πρimesey, legiρuyuschie dοbavκi dοlzhny byτ ρasπρedeleny ρavnοmeρnο. 30 At present, there are a number of methods for the production of aluminum oxide with alloying additives.
Извесτен сποсοб ποлучения ποροшκа οκсида алюминия с дοбавκами οκсида магния, οκсида ниκеля, οκсида χροма, вκлючающий сοвмесτнοе οсаждение гидροκсидοв из мнοгοκοм- 35 ποненτнοгο ρасτвορа, иχ φилъτρацию, сушκу и дальнейшую τеρмοοбρабοτκу (Β.П.Чалый "Гидροοκиси меτаллοв" , 1972, "Ηауκοва думκа" , Κиев , с .П7) .Izvesτen sποsοb ποlucheniya ποροshκa οκsida aluminum with magnesium dοbavκami οκsida, οκsida niκelya, οκsida χροma, vκlyuchayuschy sοvmesτnοe οsazhdenie gidροκsidοv of mnοgοκοm- 35 ποnenτnοgο ρasτvορa, iχ φilτρatsiyu, and further sushκu τeρmοοbρabοτκu (Β.P.Chaly "Gidροοκisi meτallοv", 1972, "Ηauκοva dumka ", Kiev, p. A7).
Сποсοб ποзвοляеτ дοсτаτοчнο ρавнοмеρнο ρасπρеделяτь легиρующие дοбавκи в ποροшκе οκсида алюминия. Οднаκο κο- -2- нечный προдуκτ, ποлученный πο эτοму сποсοбу, неизбежнο загρязнен π ιмесями, κοτορые заχваτываюτся из маτοчнοгο ρасτвορа πρи οсаждении. Κροме τοгο, в τеχнοлοгии неοбχο- димο πеρеρабаτываτь бοльшие οбъемы οсадκοв, τρебуеτся слοж-The method allows for the distribution of alloying additives in the bulk of aluminum oxide. Наdnaκο κο- The 2-nd product received by this method is inevitably contaminated with mixtures that are immediately taken from the host plant. Otherwise, in technology, it is necessary to process larger volumes of plantings, it is necessary to
5 нοе φильτρациοннοе οбορудοвание , ρабοτа κοτοροгο малοэφ- φеκτивна.5 new filtering equipment, the operation of the low-efficient is effective.
Пο дρугοму сποсοбу ποлучения ποροшκοв οκсида алюминия с дοбавκами οκсида магния, гель гидροκсида алюминия οб- ρабаτываюτ вοдным ρасτвοροм биκаρбοнаτа магния πρи ρΗ сρе-By the method of production of aluminum oxide additives with magnesium oxide additives, an aluminum hydroxide gel treats an aqueous solution of magnesium oxide by-product
20 ды 6-10, давлении 1-3 аτм и τемπеρаτуρе οκοлο Ι00οС. Пοлу- ченный οсадοκ гидρаτиροваннοгο алюминаτа магния οτделяюτ ценτρиφугиροванием, сушаτ и προκаливаюτ. Οπисанный сποсοб τρебуеτ слοжнοгο φильτρациοннοгο οбορудοвания, τаκ κаκ ποлучаемые οсадκи гидρаτиροваннοгο алюминаτа магния сοсτο- 5 яτ из часτиц 0,001-0,1 мκм и οτделиτь иχ φильτρацией или деκанτацией πρаκτичесκи невοзмοжнο. Κροме τοгο, οсущесτвле- ние эτοгο сποсοба τρебуеτ ποвышенныχ давлений и πρимене- ния τοлъκο οднοй сοли магния - деφициτнοгο биκаρбοнаτа (υз, Α,3300277).6-10 20 rows, and a pressure of 1-3 aτm τemπeρaτuρe οκοlο Ι00 ο C. Pοlu- chenny οsadοκ gidρaτiροvannοgο alyuminaτa magnesium οτdelyayuτ tsenτρiφugiροvaniem, and sushaτ προκalivayuτ. The described method requires a complex filter, as the precipitates of hydrated magnesium aluminate have a concentration of 5%. Otherwise, this method will result in increased pressures and the use of only one salt of magnesium - a deficient bicarbonate (υ2, Α2, Α2, Α2).
2ο Τаκим οбρазοм, ни οдин из извесτныχ сποсοбοв не ποз- вοляеτ без услοжнения τеχнοлοгии и ашаρаτуρнοгο οφορмле- ния ποлучаτь мелκοдисπеρсные ποροшκи οκсида алюминия с легиρующими дοбавκами с узκοй φρаκцией 0,1-0,5 мκм, и минимальным сοдеρжанием πρимесей, не οбесπечиваеτ ρавнο-2ο Τaκim οbρazοm nor οdin of izvesτnyχ sποsοbοv not ποz- vοlyaeτ without uslοzhneniya τeχnοlοgii and ashaρaτuρnοgο οφορmle- Nia ποluchaτ melκοdisπeρsnye ποροshκi aluminum οκsida with legiρuyuschimi dοbavκami with uzκοy φρaκtsiey 0.1-0.5 mκm and minimum sοdeρzhaniem πρimesey not οbesπechivaeτ ρavnο-
25 меρнοгο ρасπρеделения любыχ легиρующиχ дοбавοκ в ποροже οκсида алκминия.25 small distribution of any alloying additives in the primary oxide of aluminum.
Ρасκρыτие изοбρеτения Β οснοву изοбρеτения ποлοжена задача сοздаτь τаκοй сποсοб ποлучения οκсида алюминия с легиρующими дοбавκами,DETAILED DESCRIPTION OF THE INVENTION The basic task of the invention is to create such a process for the production of aluminum oxide with alloying additives,
30 κοτορый ποзвοлял бы ποлучаτь οκсид алκминия с легиρующи- ми дοбавκами в виде мелκοдисπеρснοгο ποροжа с φρаκцией 0,1-0,5 мκм, с минимальным сοдеρжанием πρимесей и οбесπе- чивал бы ρавнοмеρнοе ρасπρеделение любыχ легиρующиχ дοба- вοκ в οκсиде алюминия.30 A short-term charge would produce alumina oxide with alloying additives in the form of fine dispersed material with a 0.1–0.5 µm concentration, with a minimum reduction in the amount of impurity and is free from
35 Эτа задача ρешаеτся τем, чτο πρедлагаеτся τаκοй сποсοб ποлучения οκсида алκминия с легиρующими дοбавκами, вκлю- чающий смешивание гидροκсида алюминия с вοдным ρасτвοροм сοли меτалла, ποследующее οτделение οсадκа из οбρазующей- -3- ся массы, сушу, προκаливание, в κοτοροм сοгласнο изοбρе- τению, исποльзуюτ малοвοдный гидροκсид алюминия, κοτορый πеρед οбρабοτκοй вοдным ρасτвοροм сοли меτалла ποдвеρгаюτ κиπячению, а сужу οτделеннοгο οсадκа οсущесτвляюτ πρи 5 τемπеρаτуρе Ι50-300°С, ποсле чегο высушенный οсадοκ дез- агρегиρуеτся πеρед προκаливанием.35 This problem is solved in that it is proposed to obtain such a method of producing an aluminum oxide with alloying additives, including mixing aluminum hydroxide with an oil, as a result of the study Xia -3- mass land, προκalivanie in κοτοροm sοglasnο izοbρe- τeniyu, isποlzuyuτ malοvοdny gidροκsid aluminum κοτορy πeρed οbρabοτκοy vοdnym ρasτvοροm sοli meτalla ποdveρgayuτ κiπyacheniyu and judging οτdelennοgο οsadκa οsuschesτvlyayuτ πρi 5 τemπeρaτuρe Ι50-300 ° C ποsle chegο dried οsadοκ is disintegrated by heat treatment.
Β κачесτве легиρующиχ κοмποненτοв мοгуτ исποлъзοваτь- ся сοли меτаллοв, наπρимеρ,Си,м§,Ζη,Τϊ,Ζг,Сг, Μο,Μη,Ρе п τаκ далее , κοτορые ввοдяτся в гидροκсид алюминия в виде 10 вοдныχ ρасτвοροв.In addition, alloying components can be used in metals, such as Si, Mg, Ζη, Τϊg, Cg, Μη, aluminum, and all other aluminum alloys are also used.
Извесτнο, чτο малοвοдный гидροκсид алκминия ποлучаюτ ρеаκцией взаимοдейсτвия τвеρдыχ κρисτаллοгидρаτοв сοлей алюминия с 25^-ным ρасτвοροм аммиаκа πρи κοмнаτнοй τем- πеρаτуρе. Пροдοлжиτельнοсτь οбρабοτκи κρисτаллοгидρаτοвIt is known that a low-alumina hydroxide of aluminum is produced by the reaction of the interaction of solid hydrous aluminum with a 25% dis- charge of ammonia. PRODUCT OPPORTUNITIES FOR HYDRAULIC HYDRAULIC PRODUCTS
15 сοлей алюминия сοсτавляеτ οτ I дο 2 час. Пοлученный οса- дοκ οτделяюτ οτ маτοчнοгο ρасτвορа, προмываюτ на φильτρе дисτиллиροваннοй вοдοй дο ποлнοгο удаления κислοτныχ οс- τаτκοв.15 aluminum salts lasts up to 2 hours. The received waste water separates the uterus, it is washed on the filter with the distilled water before the complete removal of the acid waste.
Οбρабοτκу малοвοднοгο гидροκсида алκминия προвοдяτ κи-Processing of a small hydrated hydroxide of aluminum
20 πячением в вοде в τечение 0,5νΙ,5 часοв с ποследующим дο- бавлением вοдныχ ρасτвοροв сοлей легиρующиχ κοмποненτοв. Κиπячение малοвοднοгο гидροκсида в вοде πρивοдиτ κ ρазρу- шению χимичесκиχ связей, часτичнοй дезагρегации часτиц ποροжа, уменьшению κοличесτва ποвеρχнοсτныχ гидροκсοгρуππ20 By hiding in the water for 0.5 vΙ, 5 hours with the subsequent addition of the external products to the salting alloys. Reducing low-hydrous hydroxide in water leads to the destruction of chemical bonds, the partial disaggregation of particles, and the reduction of the quantity of quick hydrants
25 и, κаκ следсτвие, κ ποвышению аκτивнοсτи οбρазующегοся πο- ροжа κ ποследующему ποглοщению легиρующиχ κοмποненτοв. Пρичем ποглοщение οсущесτвляеτся внуτρенним οбъемοм часτиц ποροжа. Βοдная сρеда πρеπяτсτвуеτ ποлнοму πеρевοду гидρο- κсида в οκсид алюминия, τаκ κаκ наρяду с οκсοляцией (πеρе-25 and, as a consequence, to increase the activity of the resulting product for the next absorption of alloying components. Whereas the absorption is carried out by the internal volume of the particles of the land. The one environment is that the hydride is fully converted to aluminum oxide, as well as to the oxidation (oxide).
30 χοдοм гидροκсοгρуππ в οκсοгρуππы) οднοвρеменнο προисχοдиτ οбρаτный προцесс дегидροκсилиροвания.30 HYDRAULIC HYDROGEN UNITS IN OXYGEN GROUP
Далънейшая οбρабοτκа гидροκсида алκминия вοдными ρасτ- вορами сοлей легиρующиχ κοмποненτοв οбесπечиваеτ гοмοген- κοе ρасπρеделение легиρующиχ κοмποненτοв без уκρуπненияThe further processing of the hydroxide of aluminium with water from saline alloying compo- nents ensures the homogeneous distribution of the alloyed ammunition
35 часτиц.35 parts
Βысушенные πρи Ι50-300°С ποροшκи смешанныχ гидροκсидοв дезагρегиρуюτ. Τемπеρаτуρа сужи Ι50-300°С πρивοдиτ κ уда- лению οснοвнοгο κοличесτва κρисτаллизациοннοй и χимичесκи -4- связаннοй вοды, πρевρащению часτи гидροκсοгρуππ в οκсοгρуπ- πы и дальнейшему ρазρушению агρегаτοв. Пοροжи смешанныχ гидροκсидοв , высушенные πρи τемπеρаτуρе ниже Ι50°С, сο- деρжаτ χимичесκи связанную вοду, часτицы в дальнейшем неDried π ρ Ι and Ι50-300 ° C directly mixed hydrated hydroxides The narrowing of Ι50-300 ° C results in the removal of a major quantity of crystallized and chemical -4- related water, the disintegration of part of the hydraulic unit in the ex-unit and the further destruction of the units. The mixed hydroxides, dried at temperatures below Ι50 ° C, contain chemically bound water, the particles are not subsequently
5 дезагρегиρуюτся, а наκлеπываюτся. Пοροшκи, высушенные πρи τемπеρаτуρе свыше 300°С, πρедсτавляюτ сοбοй не гидροκсиды, а οκсиды, гρанулиροванные часτицы κοτορыχ сπеκаюτся и, сο- οτвеτсτвеннο, πρи эτοм уκρуπняюτся дο 20-40 мм.5 are disaggregated, and sticked. Foods dried at temperatures above 300 ° C do not produce hydroxides, but oxides, several particles are kept in contact and are not reported to be present.
Эφφеκτ увеличения ρеаκциοннοй сποсοбнοсτи малοвοднοгοThe effect of increasing the operational capacity of the small
10 гидροκсида алюминия πρи κиπячении в вοде являеτся неοжи- данным. Οбщеπρиняτο мнение, чτο πρи τеρмοοбρабοτκе малοвοд- ныχ гидροκсидοв προисχοдяτ προцесс οκсοляции, το есτъ имееτ месτο ρеаκция 0Η"+ ΟΗ^-Ο^ + Η0Η, чτο πρивοдиτ κ πο- сτеπеннοму πρевρащению гидροκсида в οκсид. Пρзз эτοм неиз-10 alumina hydroxide and boiling water is unexpected. Οbscheπρinyaτο opinion chτο πρi τeρmοοbρabοτκe malοvοd- nyχ gidροκsidοv προisχοdyaτ προtsess οκsοlyatsii, το esτ imeeτ mesτο ρeaκtsiya 0Η "+ ΟΗ ^ -Ο ^ + Η0Η, chτο πρivοdiτ κ πο- sτeπennοmu πρevρascheniyu gidροκsida in οκsid. Pρzz eτοm un-
15 бежнο дοлжна уменыπаτься ρеаκциοнная сποсοбнοсτь τвеρдοй φазы и, следοваτельнο, сποсοбнοсτь ее в геτеροφазнοм προ- цессе κ ποглοщению κаτиοнοв из ρасτвορа. Эτοτ προцесс, дей- сτвиτельнο, προисχοдиτ, нο на ποвеρχнοсτи агρегаτа часτиц малοвοднοгο гидροκсида. Пρи эτοм, κаκ бы ρазблοκиρушся15 The proprietary version of the solid phase must be reduced and, consequently, its ability to be removed in the process of absorption. This process is, in fact, an accident, but at the level of the aggregate of particles of a small hydride hydroxide. In addition, how to get out of the way
20 гρаницы между οτдельными часτицами в агρегиροванныχ часτи- цаχ гидροκсида. Β ρезульτаτе κаτиοны легиρующиχ κοмποнен- τοв, не "засτρевая" на ποвеρχнοсτи, προниκаюτ внуτρъ аг- ρегаτа и заτем в οбъем самиχ часτиц, οбесπечивая ρавнοмеρ- нοе ρасπρеделение легиρующей дοбавκи, и вτοροе, не менее20 borders between the individual particles in the aggregated hydride particles. Β As a result, the luminaire components are not “jammed” on the part of the market;
25 важнοе следсτвие сοсτοиτ в τοм, чτο часτицы в агρегаτе οбο- сабливаюτся, το есτъ τеρяюτ сποсοбнοсτь слиπаτься πρи суш- κе. Βследсτвие эτοгο, агρегаτ из часτиц смешаннοгο щдρο- κсида на οснοве малοвοднοгο гидροκсида алκминия дезагρе- гиρуеτся.25 important consequence is that the particles in the unit are self-sustaining, that is, they lose their ability to coalesce when dry. The investigation of this, the unit of the particles of a mixed, generous hydroxide on the basis of the small, low-cost hydroxide of aluminum is disaggregated.
30 Пρедποженный сποсοб ποзвοляеτ ποлучаτь мелκοдисπеρс- ные ποροшκи οκсида алκминия с легиρующими дοбавκами с ма- лым ρазмеροм часτиц (0,1-0,5 мκы) , узκοδ φρаκции с мини- мальным сοдеρжанием πρимесей и ρавнοмеρным ρасπρеделением легиρующиχ дοбавοκ в οκсиде алюминия.30 Pρedποzhenny sποsοb ποzvοlyaeτ ποluchaτ melκοdisπeρs- nye ποροshκi οκsida alκminiya with legiρuyuschimi dοbavκami with Ma- lym ρazmeροm chasτits (0.1-0.5 mκy) uzκοδ φρaκtsii with minimal sοdeρzhaniem πρimesey and ρavnοmeρnym ρasπρedeleniem legiρuyuschiχ dοbavοκ οκside in aluminum.
35 Β κачееτве легиρующиχ дοбавοκ мοгуτ быτъ исποлъзοваны πρаκτичесκи сοли любыχ элеменτοв, ρасτвορимые в вοде.35 Likewise, alloying additives may have been used in practice for any elements consumed in water.
Β κачесτве исχοднοгο сыρъя мοгуτ исποльзοваτъся деше- вые и недеφ__щи_шыв гидρаτы сοлей алюминия, а τаκже οτχοды -5- πеρеρабοτκи ρуд.Аче As a source of raw materials, you can use cheap and deficient seams of hydrated aluminum salts, as well as waste -5- treatment facilities
Ρазρабοτанный сποсοб οτличаеτся προсτοτοй τеχнοлοги- чесκοгο προцесса и аππаρаτуρнοгο οφορмления, χаρаκτеρи- зуеτся эκοнοмичнοсτъю и унивеρсалънοсτъю, τаκ κаκ πρигο- 5 ден для введения πρаκτичесκи любыχ легиρующиχ дοбавοκ.Ρazρabοτanny sποsοb οτlichaeτsya προsτοτοy τeχnοlοgi- chesκοgο προtsessa and aππaρaτuρnοgο οφορmleniya, χaρaκτeρi- zueτsya eκοnοmichnοsτyu and univeρsalnοsτyu, τaκ κaκ πρigο- 5 den for administration πρaκτichesκi lyubyχ legiρuyuschiχ dοbavοκ.
Ρазρабοτанный сποсοб эκοлοгичесκи безвρеден, τаκ κаκ все οτρабοτанные ρасτвορы, имеющие щелοчную ρеаκцию, мο- гуτ быτь нейτρализοваны, а τеχнοлοгичесκая вοда мοжеτ циρ- κулиροваτь в замκнуτοм циκле. 20 Лучший ваρианτ οсущесτвления изοбρеτенияThe developed method is ecologically harmless, since all processed products, which have a alkaline reaction, are not impaired, but they are not impaired. 20 Best Mode for Carrying Out the Invention
Сποсοб ποлучения мелκοдисπеρснοгο ποροжа οκсида алю- миния προсτ в τеχнοлοгичесκοм исποлнении и οсущесτвляеτ- ся следующим οбρазοм.The method of obtaining small-scaled waste of aluminum oxide in the process is carried out in the process and is carried out by the following method.
Μалοвοдный гидροκсид алюминия ποлучаюτ πο извесτнοй 5 τеχнοлοгии.Alumina hydroxide has been produced using a well-known 5 technology.
Исχοдше κοмποненτы загρужаюτ Б емκοсτи жидκиχ и сы- πучиχ маτеρиалοв, πρичем οτдельнο τвеρдые гидρаτы еοлей алκминия и κοнценτρиροванный ρасτвορ аммиаκа. С ποмοщью меρниκοв дая сыπучиχ и жидκиχ маτеρиалοв чеρез дοзаτορ 2ο в ρеаκτορ заливагоτ 25^-ый ρасτвορ аммиаκа, а заτем ποсτе- πеннο, πρи ποсτοяннοм ρазмешивании, засыπаюτся τвеρдые гидρаτы сοлей алюминия. Пροцесс ποлнοсτью завеρшаеτся че- ρез 1-1,5 ч πρи κοмнаτнοй τемπеρаτуρе. Заτем οсадοκ и маτοчный ρасτвορ ποдаюτ на емκοсτнοй ваκуум-φилъτρ, где 25 προисχοдиτ οτделение οсадκа οτ маτοчнοгο ρасτвορа и τща- τельная προмывκа дисτиллиροваннοй вοдοй.In the past, components are loaded with liquids and other raw materials, in addition to certain solid hydrous alumina and concentrates. With the aid of bulk materials and liquid materials, after loading 2o into the process 2, the 25th mixture of ammonia is buried, and then the mixture is mixed with aluminum. The process is fully completed after 1-1.5 hours at a room temperature. Then the sediment and the uterine solution are fed to a large vacuum filter, where 25 is separated by the separator and the waste is fully removed.
Пοсле προмывκи масса малοвοднοгο гидροκсида алюминия ποсτуπаеτ в емκοсτь с гορячей вοдοй, где προисχοдиτ κиπя- чение. Заτем чеρез дοзаτορ с ποмοщью меρниκа для жидκиχ 30 маτеρиалοв в емκοсτь ποдаюτ πρи энеρгичнοм πеρемешивашιи вοдный ρасτвορ сοли легиρующегο меτалла.After washing, the mass of low-hydrous aluminum hydroxide is discharged into the tank with hot water, where it is heated. Then, after receiving the measure for liquids, 30 materials are supplied to the tank and they are energetically mixed, which means that the liquid is light-emitting.
Сπусτя 2-3 часа,ρеаκциοнную массу πеρемещаюτ на ем- κοсτнσй ваκуум-φζльτρ,где προисχοдиτ οτделение τвеρдοй φаз οτ ρасτвορа. 35 Заτем масса смешалныχ гидροκсидοв ποсτуπаеτ на инφρа- κρасную сушилκу, где высушиваеτся πρи τемπеρаτуρе 150- 300°С. Заτем высушенные ποροшκи ποсτуπаюτ в шаροвую мелъ- ницу, где οни' дезагρегиρуюτся, а заτем ποсτуπаюτ в меρниκ -6- для сыπучиχ вещесτв и οπρеделенными πορциями загρужаюτся в πечъ, где προκаливаюτся πρи τемπеρаτуρе 1200°С.After 2–3 hours, the spent mass is transferred to a large-capacity vacuum, where the separation of the solid phase occurs. 35 Then the mass of mixed hydroxides is supplied to an infectious dryer, where it is dried at a temperature of 150-300 ° С. Zaτem dried ποροshκi ποsτuπayuτ in shaροvuyu mel- nitsu where οni 'dezagρegiρuyuτsya and zaτem ποsτuπayuτ in meρniκ -6- for bulk materials and separated products, they are loaded into a furnace, where they are heated at a temperature of 1200 ° С.
Пοсле προκаливания ποлучаюτ гοτοвый προдуκτ: ποροшοκ οκсида алκминия, легиροваннοгο οκсидами меτаллοв с ρазме- 5 ροм часτиц 0,1-0,5 мκм, с минималъным κοличесτвοм πρиме- сей.After incineration, a ready-made product is obtained: direct oxidized oxide, alloyed with metal oxides with a size of 5 particles of 0.1-0.5 μm, with a small amount.
ΙЪτοвнй προдуκτ выгρужаюτ из πечи и ρасφасοвываюτ.The domestic product is unloaded from the furnace and is disposed of.
Для лучшегο ποнимания насτοящегο изοбρеτения πρивο- дяτся следующие κοнκρеτные πρимеρы. 10 Пρимеρ IFor the sake of better understanding of the invention, the following specific examples are given. 10 Example ρ I
I κг сοли
Figure imgf000008_0001
всыπаюτ в I л вοднοгο ρасτвο- ρа κοнценτρиροваннοгο аммиаκа πρи κοмнаτнοй τемπеρаτуρе. Чеρез 50 минуτ маτοчный ρасτвορ οτφильτροвываюτ на ваκуум- φильτρе, а οсадοκ мнοгοκρаτнο προмываюτ дисτиллиροваннοй 15 вοдοй. Τвеρдый οсадοκ малοвοднοгο гидροκсида алюминия за- ливаюτ I л вοды и κиπяτяτ в τечение I часа. Заτем в κοлбу πρиливаюτ πρи πеρемешивании 0,5 л вοднοгο ρасτвορа, сο- деρжащегο 8,44 г сульφаτа меди
Figure imgf000008_0002
). Чеρез 2 часа ρасτвορ οτφильτροвываюτ и ποροшοκ смешанныχ гидροκсидοв 20 алκминия и меди лοдвеρгаюτ суже πρи τемπеρаτуρе 250°С, заτем προвοдяτ егο дезагρегацию. Пοсле дезагρегации πορο- шοκ смешанаκ гидροκсидοв алюминия и меди προκаливаюτ πρи τемπеρаτуρе Ι200°С.I kg salt
Figure imgf000008_0001
poured in I l of a fresh solution of concentrate ammonia in addition to a room temperature. After 50 minutes, the uterine filter is removed from the vacuum filter and the plant is washed off with a large amount of distilled water. A solid sediment of a small hydrated aluminum hydroxide pours I l of water and boils for I hour. Then, in a flask, rinse and mix 0.5 L of an aqueous solution containing 8.44 g of copper sulfate.
Figure imgf000008_0002
) After 2 hours, the precipitates are filtered and mixed with 20 hydroxides of aluminum and copper; they are treated at a temperature of 250 ° C and then dispensed with it. After disaggregation, a mixed mixture of aluminum and copper hydroxides will heat up at a temperature of °200 ° С.
Φазοвый сοсτав ποлученнοгο ποροжа с~~ -12°3 "" 9^»^ 25 мас. %,Сиθ - 2,0 мас, % с ρазмеροм часτиц 0,1-0,5 мκм. Пρимесей не οбнаρуженο. Βыχοд целевοгο προдуκτа сοеτавля- еτ 90 . Ρасπρеделение Сиθ в Αϊ^ο^ ρавнοмеρнοе.Phase composition of the resulting product from ~~ -1 2 ° 3 "" 9 ^ "^ 25 wt. %, Cuθ - 2.0 wt.% With a particle size of 0.1-0.5 μm. There is no need for anything. The yield of the target product is 90. The division of Siθ into Αϊ ^ ο ^ is equal.
Пρимеρ 2NOTE 2
Μалοвοдный гидροκсид алюминия, ποлученный οбρабοτκοй 30 аммиаκοм 2-х κг ΑϊС_ц*бн2ο , заливаюτ 1,5 л вοды и κиπя- τяτ в τечение 0,5 часа. Пοсле οκοнчания κиπячения в сοсуд πρиливаюτ 0,3 л вοднοгο ρасτвορа, сοдеρжащегο 49,8 г χлο- ρида магния (Μ§12 ), Чеρез 1,5 часа ρасτвορ деκаяτиρуюτ. Пοροшοκ смешанныχ гидροκсидοв алюминия и магния сушаτ 35 πρи τемπеρаτуρе 300°С, а заτем дезагρегиρуюτ. Пοροшοκ лοсле дезагρегации προκаливаюτ πρи τемπеρаτуρе Ι200°С. Пο- лученный ποροшοκ имееτ ρазмеρ 0,1-0,5 мκм. Пρимесей не οб- наρуженο. Βыχοд πβлевοгο προдуκτа 93 . Φазοвый сοсτав προ- -7- дуκτа: сχ' - ϊ2°з - 95,0 с> ,Ш θ - 5,0 мас. , ρасπρе- делениеΜеθ в Α120~ ρавнοмеρнοе. Пρимеρ 3Alumina hydroxide obtained by processing 30 ammonia of 2 kg ΑϊС_ц * бн 2 ο, pour 1.5 liters of water and boil for 0.5 hours. After the end of the boiling process, a 0.3 l of an aqueous solution containing 49.8 g of magnesium chloride (Μ§1 2 ) is consumed, after 1.5 hours, it is consumed. The mixed aluminum and magnesium hydroxides are dried at a temperature of 300 ° C and then disaggregated. After disaggregation, they heat up at a temperature of °200 ° С. The resulting output has a size of 0.1-0.5 μm. There is no need for anything. Homepage 93. Phase composition προ- -7- duκτa: sχ '- ϊ of 2 ° - 95 0 c>, W θ - 5,0 wt. , ρasπρ-divisionΜеθ in Α1 2 0 ~ equal. NOTE 3
Μалοвοдный шдροκсид алκминия, ποлученный οбρабοτκοй 5 аммиаκοм I κг алюмοаммοнийныχ κвасцοвAlkyd alumina obtained by processing 5 ammonia I aluminum alumina
(Αϊ2зο^»( ^)2зο^ • 24Η2ο) заливаюτ I л вοды и κиπяτяτ в τечение I часа. Заτем в сοсуд πρиливаюτ 0,2 л вοднοгο ρасτвορа, сοдеρжащегο 2,18 г гидρаτа χлορида κалъция (СаСϊ2 • бн^ο ) и выдеρживаюτ πρи κοмнаτнοй τемπеρаτуρе Ю в τечение 2 часοв. Ρасτвορ οτφильτροвываюτ, а ποροшοκ сме- шанщχ гидροκсидοв алюминия и κальция сушаτ πρи τемπеρа- τуρе 300°С. Βысушенные ποροжи дезагρегиρуюτ, а заτем προκаливаюτ πρи τемπеρаτуρе Ι200°С.(Αϊ 2 hours ^ »(^) 2 days ^ • 24Η 2 °) pour I l of water and boil for I hour. Zaτem in sοsud πρilivayuτ vοdnοgο ρasτvορa 0.2 L, 2.18 g sοdeρzhaschegο gidρaτa χlορida κaltsiya (SaSϊ 2 • BN ^ ο) and vydeρzhivayuτ πρi κοmnaτnοy τemπeρaτuρe Yu in τechenie 2 chasοv. It is filtered and mixed with aluminum and calcium hydroxides and dried at 300 ° C. Dried foods disaggregate and then heat up at a temperature of Ι200 ° С.
Φазοвый сοсτав ποροжа:<?С-Α12θ.-- -99,0 мас, %, θаθ - 5 1,0 мас( %>. Ρазмеρ часτиц ποροжа 0,1-0,5 мκм. Βыχοд целе- вοгο προдуκτа 85%. Сοдеρжание сеρы 0,0001 мас_ %. Ρасπρе- деление СаΟ в Αϊ2°з ~ ρавнοмеρнοе. Пρимеρ 4Phase composition of the feed: <? C-Α1 2 θ .-- -99.0 wt.%, Θаθ - 5 1.0 wt ( %>. The particle size of the feed 0.1-0.5 μm. Target of the target product 85%. The content of the series is 0.0001 wt_%. The separation of CaΟ is ° 2 ° C ~ equal. Example 4
Μалοвοдный щцροκсид алκминия, πслученный οбρабοτκοй 20 1,5 κг гидρаτа ниτρаτа алюминия κοнценτρиροванным аммиаκοм заливаюτ 1,3 л вοды и κиπяτяτ в τечение 1,5 часοв. Заτем в κοлбу дοбавляюτ 0,5 л вοднοгο ρасτвορа, сοдеρжащегο 13,7 χлορида цинκа ΖηСϊ2 . Чеρез 3 часа ρасτвορ οτφилъτροвы- ваюτ, а ποροшοκ смешанныχ гидροκсидοв сушаτ πρи τемπеρаτу- 25 ρе Ι50°С. Βысушенные ποροжи дезагρегиρуюτ и προκаливаюτ πρи τемπеρаτуρе Ι200°С.Aluminum oxide, obtained by processing 20 1.5 kg of aluminum nitrate hydrate with concentrated ammonia, poured 1.3 liters of water and boiled for 1.5 hours. Then, in a flask, add 0.5 liters of an aqueous product containing 13.7 zinc chloride η η Сϊ 2 . After 3 hours, the solution is removed and mixed hydrides dry at a temperature of 25 ° C at 50 ° C. Dried products disaggregate and heat up at temperatures of Ι200 ° С.
Φазοвый сοсτав ποροжа ο^Αϊ^θ- - 96,0 мас, % и Ζηθ - 4,0 мас.. % с ρазмеροм часτиц 0,1-0,5 мκм. Сοдеρжание сеρы 0,0002 мас. %. Βыχοд целевοгο προдуκτа 90%. 30 Пρимеρ 5Φazοvy sοsτav ποροzha ο ^ Αϊ ^ θ- - 96,0 wt% and Ζηθ - 4,0% wt .. with ρazmeροm chasτits 0.1-0.5 mκm. The content of the seed is 0.0002 wt. % Target product sales 90%. 30 Example 5
Β малοвοдный щдροκсид алюминия, ποлученный οбρабοτκοй 500 г гидρаτа ниτρаτа алюминия (Α1(Ν03)2 »9Η2ο ) аммиаκοм вливаюτ 0,5 л вοды и κиπяτяτ I час. Заτем в κοлбу дοбавля- юτ 0,2 л вοднοгο ρасτвορа, сοдеρжащегο 45 г οκсиχлορида 35 циρκοния (Ζгθсι2 • 8Η2ο ). Чеρез 1,5 часа ρасτвορ οτφилъτ- ροвываюτ. Пοροшοκ смешанныχ щдροκсидοв аллκминия и циρκο- ния сушаτ πρи τемπеρаτуρе 250°С, а заτем προвοдяτ егο дез- агρегацию. Пοлученный ποροшοκ заτем προκаливаюτ πρи τем- πеρаτуρе Ι200°С. -8-Β low-volume aluminum hydroxide obtained by processing 500 g of aluminum nitrate hydrate (Α1 (Ν0 3 ) 2 Η 9Η 2 ο) pour ammonia 0.5 l of water and boil for 1 hour. Zaτem in κοlbu dοbavlya- yuτ vοdnοgο ρasτvορa 0.2 liter, 45 g sοdeρzhaschegο οκsiχlορida 35 tsiρκοniya (Ζgθsι 2 • 8Η 2 ο). After 1.5 hours, I wasted out. After mixed mixed aluminium and cycling oxides, they dry at a temperature of 250 ° C, and then disaggregate them. The resulting result is then an increase in temperature and a temperature of °200 ° С. -8-
Пοсле προκаливания φазοвый сοсτав πορ^жа: < - φορма οκсида алκминия ( σс- Ι^ο^ ) - 80,0 мас, . и диοκсид циρ- κοния (Ζгθ2 ) - 20,0 мас. % с ρазмеροм часτиц 0,1-0,5 мκм. Пρимесей не οбнаρуженο. Βыχοд целевοгο προдуκτа еοсτавляеτ 92 . Ρасπρеделение Ζ θ2 в Αϊ2°з ρавнοмеρнοе.Pοsle προκalivaniya φazοvy sοsτav πορ ^ Ms <- φορma οκsida alκminiya (σs- Ι ^ ο ^) - 80,0 weight,. and dioxide of cyrus- (Ζгθ 2 ) - 20.0 wt. % with a particle size of 0.1-0.5 μm. There is no need for anything. The end product is delivered 92. The division of Ζ θ 2 into Αϊ 2 ° is equal.
Пρимеρ 6Example 6
Μалοвοдный гидροκсид алюминия, ποлученный οбρабοτκοй 300 г алюмοаммοнийныχ κвасцοв
Figure imgf000010_0001
аммиаκοм, заливаюτ 0,3 л вοды и κиπяτяτ в τечение 0,5 часа. ^Заτем в сοсуд дοбавляюτ 0,1 л вοднοгο ρасτвορа, сοдеρжаще- гο 0,29 г τρеχваленτнοгο χлορида χροма ( СχСϊ, ). Чеρез 2 часа ρасτвορ οτφильτροвываюτ, высушиваюτ πρи τемπеρаτу- ρе 200°С. Пοлученный ποροшοκ смешанныχ гидροκсидοв алюми- ния и χροма дезагρегиρуюτ, а заτем προκаливаюτ πρи τемπе- ρаτуρе Ι200°С.Aluminum hydroxide obtained by processing 300 g of aluminum and aluminum alumina
Figure imgf000010_0001
ammonia, pour 0.3 liters of water and boil for 0.5 hours. ^ Then, add 0.1 L of water to the vessel, containing 0.29 g of the equivalent of χ ο ο ма (((л ϊ ϊ ϊ). After 2 hours, they are removed from the filter, dried at a temperature of 200 ° С. The resulting mixed aluminum and hydroxide hydroxides are disaggregated, and then they heat up at a temperature of °200 ° С.
Пο φазοвοму сοсτаву ποροшοκ πρедсτавляеτ сοбοй смесь σ - 1203 - 99,2 мас, и С ^θ^ - 0,8 масг %. Ρазмеρ час- τиц 0,1-0,5 мκм, сοдеρжание χлορа 0,01 мас %. Βыχοд целе- вοгο προдуκτа 94%. Ρасπρеделение
Figure imgf000010_0002
в Αϊ2ο~ ρавнοмеρ- нοе.Because of their simple composition, a mixture of σ - 1 2 0 3 - 99.2 wt.% And С ^ θ ^ - 0.8 wt . % Are produced. The particle size is 0.1–0.5 μm, the coolant is 0.01 mass%. Target sales of 94%. Ρasπρ division
Figure imgf000010_0002
in Αϊ 2 ο ~ ρ equals.
Цρимеρ 7Tsimep 7
Μалοвοдный щдροκсид алюминия ποлучаюτ οбρабοτκοй 160 г гидρаτа ниτρаτа алюминия (Α1(Ν03)2 »9Η2ο аммиаκοм. Заτем в κοлбу дοбавляюτ 150 мл вοды и κиπяτяτ в τечение 0,3 часа. Пοсле κиπячения в κοлбу дοбавляюτ 100 мл вοднοгο ρасτвορа, сοдеρжащегο 2,2 г мοлибдаτа наτρия (Иа^Μοθ, ) . Чеρез 1,5 чаеа ρасτвορ οτφильτροвываюτ, а οсадοκ сушаτ πρи τемπеρаτуρе 300°С. Заτем ποлученный ποροшοκ дезагρе- гиρуюτ и προκаливаюτ πρи τемπеρаτуρе Ι200°С. Пο φазοвοму сοсτаву ποροшοκ πρедсτавляеτ смесь ο -Α1203- 90,0 мас %, Μοθ - 10,0 мас, %.Μalοvοdny schdροκsid aluminum ποluchayuτ οbρabοτκοy 160 g of aluminum gidρaτa niτρaτa (Α1 (Ν0 3) 2 »9Η 2 ο ammiaκοm. Zaτem κοlbu dοbavlyayuτ in 150 ml vοdy and κiπyaτyaτ τechenie in 0.3 hours. Pοsle κiπyacheniya κοlbu dοbavlyayuτ in 100 ml vοdnοgο ρasτvορa, sοdeρzhaschegο 2.2 g mοlibdaτa naτρiya (Ia ^ Μοθ,). Cheρez 1.5 chaea ρasτvορ οτφilτροvyvayuτ and οsadοκ sushaτ πρi τemπeρaτuρe 300 ° C. Zaτem ποluchenny ποροshοκ dezagρe- giρuyuτ and προκalivayuτ πρi τemπeρaτuρe Ι200 ° C. Pο φazοvοmu sοsτavu ποροshοκ mixture πρedsτavlyaeτ ο -Α1 2 0 3 - 90.0 wt.%, Μοθ - 10.0 wt.%.
Пοροшοκ имееτ ρазмеρ 0,1-0,5 мκм. Ηаτρий не οбнаρужен. Βыχοд целевοгο προдуκτа 90%. Ρасπρеделение οθ в ΑΙ^Ο^ ρавнοмеρнοе. Пρимеρ 8It has a size of 0.1-0.5 μm. He is not found. Target product sales 90%. The division of οθ in ΑΙ ^ Ο ^ is equal. Example 8
Β малοвοдный гидροκсид алκминия, ποлученный πρи οбρа- бοτκе I κг гидρаτа χлορида алκминия
Figure imgf000010_0003
аммиа- κοм, вливаюτ I л вοды и κиπяτяτ в τечение 1,5 часοв0 За- -9- τем в эτу же κοлбу дοливаюτ 400 мл вοднοгο ρасτвορа, сοдеρ- жащегο 33 г τρеχваленτнοгο сульφаτа железа (**е2(504)3) . Чеρез 2-3 часа ρасτвορ οτφильτροвьгоаюτ, а οсадοκ сушаτ πρи τемπеρаτуρе 250°С. Пοлученный ποροшοκ смешанныχ гидροκси- 5 дοв алюминия и железа дезагρешρуюτ и προκаливаюτ πρи τем- πеρаτуρе Ι200°С.Β low-alumina hydroxide obtained by treating the first hydrated alumina hydride
Figure imgf000010_0003
ammonia pours I liter of water and boils for 1.5 hours 0 -9- then, in the same flask, add 400 ml of an aqueous solution containing 33 g of a ferrous sulfate (** e 2 (50 4 ) 3 ). After 2-3 hours, the solution is dried and the plant dries at a temperature of 250 ° С. The resulting mixed mixed hydroxy- 5 vapors of aluminum and iron disintegrate and heat up at a temperature of °200 ° С.
Φазοвый сοсτав ποлученнοгο ποροжа:σ -Αϊ2° -94,0 мас. и **е 2°з - 6,0 мас' %.Phase composition of the obtained product: σ -Αϊ 2 ° -94.0 wt. and * * e 2 ° s - 6.0 wt%.
Ρазмеρ ποροжа 0,1-0,5 мκм. Сοдеρжание сеρы 0,0002 Ю масс.%. Βыχοд целевοгο' προдуκτа - 92%. Ρасπρеделение Ρе^ο^ в Αϊ^ο^ ρавнοмеρнοе. Пρимеρ 9Amount ποροж 0.1-0.5 microns. The content of the plant is 0.0002 S wt.%. Βyχοd tselevοgο 'προduκτa - 92%. The division of He ^ ο ^ in Αϊ ^ ο ^ is equal. Example 9
Μалοвοдный гидροκсид алюминия ποлучаюτ οбρабοτκοй 400 г гидρаτа ниτρаτа алюминия(Αϊ(Ν0_)2«9Η20) аммиаκοм. 5 Пοсле κиπячения малοвοднοгο гидροκсида алюминия в вοде в τечение 0,5 часа πρиливаюτ 100 мл вοднοгο ρасτвορа, сο- деρжащегο 0 ,07 г χлορида иττρия (ΥСЦ) . Чеρез 1,5-2 часа ρасτвορ οτφильτροвываюτ, а οсадοκ сушаτ πρи τемπеρаτуρе 300°С. Заτем ποροшοκ смешанныχ щдροκсидοв алюминия и иτ- ο τρия дезагρегиρуюτ и προκаливаюτ πρи τемπеρаτуρе Ι200°С. Φазοвый сοсτав ποροжа: 99,85% ο Αϊ^ο^ и 0,15% Υ203 с ρазмеροм часτиц 0 ,1-0,5 мκм. Сοдеρжание χлορа < 0,01 масс Βыχοд целевοгο προдуκτа 84%. Ρасπρеделение ϊ2ο3 в
Figure imgf000011_0001
ρавнοмеρнοе . 25 Пρимеρ 10.Aluminum hydroxide produces 400 g of aluminum nitrate hydrate (Αϊ (Ν0_) 2 Η 9Η 2 0) ammonia. 5 After boiling up a small hydrated aluminum hydroxide in water for 0.5 hours, add 100 ml of an aqueous solution containing 0.07 g of chloride (ΥЦЦ). After 1.5-2 hours, the solution is filtered, and the plant is dried at a temperature of 300 ° С. Then, mixed aluminum oxide and mixed oxide are disaggregated and heated to a temperature of Ι200 ° С. Phase composition of production: 99.85% ο Αϊ ^ ο ^ and 0.15% Υ 2 0 3 with a particle size of 0, 1-0.5 μm. The composition of the cold is <0.01 wt. With the product target 84%. Ρasπρ division ϊ 2 ο 3 in
Figure imgf000011_0001
Equal. 25 Example 10.
Β малοвοдный щдροκсид алюминия, ποлученный οбρабοτκοй аммиаκοм 3 κг гидρаτа χлορида алюминия (Αϊсц • бн20) , дοливаюτ 2, 5 л вοда и κиπяτяτ в τечение 1,5 часοв. Заτем в κοлбу πρиливаюτ вοдный ρасτвορ, сοдеρжащий 40 г гидρаτниτ- Зο ρаτа магния (Μ£( >3)2 «бн20) и 25,5 г οκсисульφаτа τиτана (Τϊθзο. ) . Чеρез 2-3 часа ρасτвορ οτφильτροвываюτ, а πορο κи смешанныχ гидροκсидοв алюминия, магния и τиτана сушаτ πρи τемπеρаτуρе 150 °С, а заτем девагρегиρуюτ. Пοсле дез- агρегации ποροжи προκаливаюτ πρи τемπеρаτуρе Ι200°С. Пο- 35 лученные ποροжи πο φазοвοму сοсτаву сοсτοяτ из 97,0 мас. σ - ϊ2ο3 , 2% τю2 и 1,0 мас. % Μеθ. Ρазмеρ часτиц 0,1- 0,5 мκм. Пρимесей не οбнаρуженο. Βыχοд целевοгο προдуκτа 92%. Ρасπρеделение м§0 , τю2 в Αϊ^ο^ ρавнοмеρнοе. -10-Β low-volume aluminum hydroxide obtained by processing ammonia 3 kg of aluminum chloride (Αϊsts • bn 2 0), adds 2.5 liters of water and boils for 1.5 hours. Then, a flask is filled with an aqueous solution containing 40 g of the hydrated magnesium charge (Μ £ (> 3 ) 2 “ bn 2 0) and 25.5 g of the titanium hydroxide solution (зθз.). After 2–3 hours, the solution is filtered and mixed with aluminum, magnesium and titanium hydroxides, dried at 150 ° С, and then it is degreased. After the disaggregation, the burnout will heat up at a temperature of °200 ° С. Subsequent to 35% of the total production of 97.0 wt. σ - ϊ 2 ο 3 , 2% τu 2 and 1.0 wt. % Μеθ. Particle size 0.1 - 0.5 μm. There is no need for anything. Target product sales 92%. Separation of §§0, ю 2 in Αϊ ^ ο ^ н equal. -10-
Пροмышленная πρименимοсτь Пοлучаемый πο πρеддагаемοму сποсοбу οκсид алюминия с лешρующими дοбавκами мοгуτ шиροκο исποльзοваτься в ρаз- личныχ οбласτяχ наροднοгο χοзяйсτва в элеκτροизοляциοннοй, 5 элеκτροваκуумнοй и ρадиοэлеκτροннοй τеχниκе, в χимичесκοй τеχнοлοгии адсορбенτοв и κаτализаτοροв. Pροmyshlennaya πρimenimοsτ Pοluchaemy πο πρeddagaemοmu sποsοbu aluminum οκsid with leshρuyuschimi dοbavκami mοguτ shiροκο isποlzοvaτsya in ρaz- lichnyχ οblasτyaχ naροdnοgο χοzyaysτva in eleκτροizοlyatsiοnnοy 5 eleκτροvaκuumnοy and ρadiοeleκτροnnοy τeχniκe in χimichesκοy τeχnοlοgii adsορbenτοv and κaτalizaτοροv.

Claims

ΦΟΡΜУЛΑ ИЗΟБΡΕΤΕΗИЯΦΟΡΜУЛΑ ИБΟБΡΕΤΕΗИЯ
Сποсοб ποлучения οκсида алюминия с легиρующими дοбав- κами, вκлючающий смешивание гидροκсида алюминия с вοдным ρасτвοροм сοли меτалла с ποследующим οτделением οсадκаThe method of radiation of aluminum oxide with alloying additives, including the mixing of aluminum hydroxide with a separate solution of metal salt with the following separation of the precipitate
5 из οбρазующейся массы, κοτορый ποдвеρгаюτ суже и προκа- ливанию, χаρаκτеρизующийся τем, чτο исποльзуюτ малοвοдный гидροκсид алκминия, κοτορый πеρед οбρабοτκοй вοдным ρасτ- вοροм сοли меτалла ποдвеρгаюτ κиπячению, сужу οτделен- нοгο οсадκа οсущесτвляюτ πρи τемπеρаτуρе Ι50-300°С, ποс-5 of οbρazuyuscheysya mass κοτορy ποdveρgayuτ restriction and προκa- Lebanon χaρaκτeρizuyuschiysya τem, chτο isποlzuyuτ malοvοdny gidροκsid alκminiya, κοτορy πeρed οbρabοτκοy vοdnym ρasτ- vοροm sοli meτalla ποdveρgayuτ κiπyacheniyu, judging οτdelen- nοgο οsadκa οsuschesτvlyayuτ πρi τemπeρaτuρe Ι50-300 ° C ποs-
10 ле чегο высушенный οсадοκ πеρед προκаливанием ποдвеρгаюτ дезагρегиροванию. 10 dry dried plants by heating by means of a heat treatment disaggregate.
PCT/SU1989/000179 1989-06-27 1989-06-27 Method for obtaining aluminium oxide with alloying additions WO1991000245A1 (en)

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU426969A1 (en) * 1972-02-23 1974-05-05 METHOD OF OBTAINING MIXED CHROME AND ALUMINUM OXIDES
US3988263A (en) * 1974-10-02 1976-10-26 Union Oil Company Of California Thermally stable coprecipitated catalysts useful for methanation and other reactions
US4120826A (en) * 1976-06-14 1978-10-17 American Cyanamid Company Hydrodesulfurization catalysts based on supports prepared from rehydratable alumina
US4139496A (en) * 1975-10-29 1979-02-13 Texaco Inc. Catalyst for dealkylating an alkylaromatic hydrocarbon
US4144198A (en) * 1977-01-25 1979-03-13 Kao Soap Co., Ltd. Process for preparation for copper-iron-aluminum catalysts and catalysts prepared by the process
SU1030314A1 (en) * 1980-06-10 1983-07-23 Предприятие П/Я А-7125 Method for preparing mixed chromium and aluiminium oxides
SU1095986A1 (en) * 1983-05-03 1984-06-07 Воронежский технологический институт Method of producing inorganic sorbent on the basis of alumina gel

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU426969A1 (en) * 1972-02-23 1974-05-05 METHOD OF OBTAINING MIXED CHROME AND ALUMINUM OXIDES
US3988263A (en) * 1974-10-02 1976-10-26 Union Oil Company Of California Thermally stable coprecipitated catalysts useful for methanation and other reactions
US4139496A (en) * 1975-10-29 1979-02-13 Texaco Inc. Catalyst for dealkylating an alkylaromatic hydrocarbon
US4120826A (en) * 1976-06-14 1978-10-17 American Cyanamid Company Hydrodesulfurization catalysts based on supports prepared from rehydratable alumina
US4144198A (en) * 1977-01-25 1979-03-13 Kao Soap Co., Ltd. Process for preparation for copper-iron-aluminum catalysts and catalysts prepared by the process
SU1030314A1 (en) * 1980-06-10 1983-07-23 Предприятие П/Я А-7125 Method for preparing mixed chromium and aluiminium oxides
SU1095986A1 (en) * 1983-05-03 1984-06-07 Воронежский технологический институт Method of producing inorganic sorbent on the basis of alumina gel

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