WO1996020290A1 - Method of reprocessing aluminium waste - Google Patents

Abstract

Use: extraction of aluminium and aluminium alloys from aluminium waste. The essence of the invention lies in heating the waste in the form of slag to 760-880 °C and treating it with a reagent which promotes the separation of oxides from the metal. Once separated from the molten melt, the secondary slag is removed and the metal thus obtained is poured off. The reagent used consists of slags produced in the production of synthetic silumin, water vapour and carbon-containing material.

Description

 'ЛΙΟСΟБ ΙШΡΕΡΑБΟΤΚИ ΑЛУΜИΗИΕБΚΧ ΟΤΧΟДΟБ ласshine tehniki

The missing product is supplied to the metal industry primarily for raw materials, and more specifically, to the processing methods of aluminum. More recently, the invention is available from such processes as the processing of aluminum products, mainly from the melting process. A more narrower process is available for the processing of aluminum alloys with melting with a single process alloy. soda ash separation of oxides and metal aluminum.

Pρedshesτvνyushshι uροven τeχniκi Ε nzsτοyashee ερemya for πeρeρzοστgϊ 'alyuminievyχ τslϊ'r ^ ^~ - chasτnοsτi. ил aluminous slags, is known "all but inclusive" з г е ρ ρ и и д and melting д for? In the case of the crisis πρι: 9 ^{g ~} - £. 5th;: ^{~ The} method fails and I find the alloy and? slag. <<- n high power consumption of GBAS, Α, 885310).

It is known that the process of processing metal and aluminum is hazardous to aluminum by heating, bypassing it and the temperature of the furnace is bypassed due to the melting process. Pρn τοm οτdelenie meτalla sτ η B ^77? "- ^l" - ιgesτριyaΡ-ZΤ eilτgzιικen cheυ with _θgi ^~ s ^g e νeϊeglzl '. l ⁱ r ^ π_l. ^η - leg ^η ig? treatment?. 'et? _ll_g h-''Χ' ^ d ^ "- n ^ and ^ '- atna- with ghzstst-

ΤЛΤΙГ 'ΡΚΟΙΙ УЗЗЭΜ "мο ^ν -зν ^ υг -'-", ^{• •} ϊ ^" πе ^{, ι} _' ' ^, and_ϊ ' ^г ΡЗЧΙϊ ИШΙ Ρ ГΤΙ'ηLLΙ. -'- by ιлзззз. Днн''*" - τι ϊ κ + - ι ^g "-ο ^,, еτ ^υι '- ¹ ' _ *. en ττс'рτι- '^' does not provide the necessary degree of separation of the metal ιЗυ,,? 539ιθ; .

Is there a way to prevent the processing of aluminum alloys and let it go without ^any danger? and ^, " ^, 0Εme ^, " ^, then they are: ι? ^d 'to the next division ^{to <} metall? By default, is the Metasto? I cherish Γ ^ nal * chi <= 'acidity Ρ due to significant values a ^ χс ΌЛ: -: ΓЗ

а ^г^ π вл^чи^ " .ч г^,;^,_-^τ-*:^,-ν -^•τ с'^'''"-* ΡΞΗΗЬ¹ Γ ?Г^ΛΙΓ"^^ ^{• ν} ванну лοма и οτχοлοв алюминиевοгο сπлава с железными πρиселκа- ми. Пссле πеρеπлав? удаляюτ всπлывший шлаκ и сливаюτ ρасπлав аπюминκч. ^иедηгτзτκοм меτοда явлчеτся неποлнοе οτделение ^ο- τалличесκοгг злюмичия.

a ^ g ^ pi ^ chi ^ is ".ch ^{g,;, _- τ - *:} , -ν - ^ • τ with ^'''''- * ¹ ΡΞΗΗ gamma G ^ΛΙ Γ" ^^ ^{• ν} bath? lοma and οτχοlοv alyuminievοgο sπlava with iron πρiselκa- mi Pssle πeρeπlav udalyayuτ vsπlyvshy shlaκ and slivayuτ ρasπlav aπyuminκch ^and edηgτzτκοm meτοda yavlcheτsya neποlnοe οτdelenie ^ο -.?. τallichesκοgg zlyumichiya.

sheet instead of withdrawn The best view is possible and the result is: -. The invention is a method of processing the evil - Other products. according to agreement. disintegrate the slag, Ε SLIS slag ΕΕΟDYAΤ flux from the wood-based strength and chaluride of the potassium, stirs the ΟΤCΤΞΒΒΒΤΤΤ and removes the slurry that is crushed. Due to drawbacks of this method, the test may be incomplete; there is an incomplete separation on the border of slag metal, but a large increase is significant, and it is significant (105).

SUMMARY OF THE INVENTION

Ξ οsnsvu nasτοyaschegο izσbρeτeni- ποlο "ene of cottage ρazρabοτ- κi ΗΟΕΟΓΟ sπssοba πeρeρabοτκi alyumnnievyχ shlaκοz not τρeb gaιde- ^ n σπeπialnοgο aππaρaτuρnοgs οφορmleniya ποzvοlyayuschegs extract meτall in zσρme uζσbnsi llja lalneyshegο isποlzσzaniya ι:?... Gatsiσ- nalns uτπliziροvaτ οτχοdy alyuminievοgο προizvοdsτva .

The task is solved in that way, in the case of the process of 5 aluminum alloys, which includes the melting of the slag and the introduction of the activity, the notice is taken. In the source of information: use a reagent. oppressive separation of the grounds and the metal,

'~ПС!~^ν_*'~''^_ι— τвующегυ ρазделению ΟΚСИДΟΕ И меτалличесκοгο элюминия, сτлича- еτ ланнοе изοόρеτение οτ наибοлее близκσгс анзлοга и οбуслοв-5 ливаеτ σссτвеτστвие заязленнοгο τеχничеσκοгο ρешения κρиτеρию "Ηοвизна".Mr. θi eτsg "E κacheστve οeageκτΞ s ^~ v ~ Jf-isποleοzzτ shlaκi_ πρgpzΕsdστzΞ gnκτeτichesκgg:. Σilumina πlπ vοdyansι: πaρ and carbon ρσlσσdeρzhaschii mετ ÷ Guiseley, μι ^{'ι'ύρρ η}

'~ PS ^{~ ν_ *!' ~ ''} _Ι - τvuyuschegυ ρazdeleniyu ΟΚSIDΟΕ And meτallichesκοgο elyuminiya, sτlicha- eτ lannοe izοόρeτenie οτ naibοlee blizκσgs anzlοga and οbuslοv 5 livaeτ σssτveτστvie zayazlennοgο τeχnicheσκοgο ρesheniya κρiτeρiyu "Ηοvizna".

^ι-,πσσοбз στ нзвеστκыχ σσστси^-1 з τοм, τ_^τ.-. г^,еΞг^,~ιч^гг,Ξ, σπсгσбστвνюшегο οзэделенн:-: ΟΚΓΗДΟΕ ::Personality

^ι-, πσσοbz στ is not σστκıχ σσστсi ^-1 s τοм, τ_ ^τ. -. g ^, eΞg ^{, ~ ι} h ^gg, Ξ, σπcgσbστvνyushedeo: -: ΟΚΓΗДΟΕ ::

г σвσι-г οчеρедь, влияеτ на σκοг.σστ, σизπκс-χимичеοκиχ πгσнеσσοв и οбеσπечиваеτ π сц σ^ κοагуляцπн οκ_-идοв алюмπния. Βсе вышегκазаннοе, πσ мнению зая- виτеля. πσзΕθляеτ гοзορиτι ο нσвοιι σсзοκуπнοсτи πρизнаκсв и ο сοοτвеτсτвип заявленнοгс τеχнπчесκοгс ρешения κг.иτеρиκ "ϊ_зοб-»* Ρг-ι ₌ τг τгτττ_- ^ - ^• _-, -. ^• -, Г Ιν ' ^{τ г} Τ ~ ^τ - - ρ _. r ^ν τrτ r ^{η Τ} . . - ^G ΤGIPP ^' ~ <'-> Τ ' ¹ '"Ρ~> \ ~ ~ ~ ПЖ -> Τ- [ ^Τ * ~ -G n mogι 'lsgπg πι igσ malicious.

d. All of the above, πσ is the opinion of the applicant. There is a risk of inconvenience and is consistent with the declared methods of solving the technical problems ""_зоб-

ayatogo - 3 -

ή τ. "" "...............

80 and the waste of aluminum alloys with iron alloys results in the processing of aluminum waste from aluminum, which increases the risk of aluminum waste. Otherwise, the declared ones will not try special ^* or dangerous devices and will not contaminate

85 gredu

Not yet said ^{ρ for} ^ reads that the declared method of copying is satisfied) '. ¹ "Pr ^η Thinking им им им"""."

BEST MODES FOR CARRYING OUT THE INVENTION The inventories of the invention are provided by the following method.

9P ρ ϋτ. vvοdyaτ ρeagenτ, sππ'τbsτvu.'ϊϊdii ρazd ^ρ leniyu οκgtsdοΕ:. meτallιιchegκοgs aluminum. υsuschegτzlyayuτ vydeρzhκν dο ποln_) T '"ρasπlaΕleniya ρe? ^~ -enτa. yaaτem slivayuτ meτall and udalyayuτ ρτsρichnyή shlaκ.

95 EXAMPLE 1. As a part of the process, aluminum slag was processed. Ias. : Aluminum b, aluminum, 3 "aluminum oxide. The alloy has a large electric furnace, which results in a 1-inch aluminum alloy, which results in an increase in temperature, which leads to an increase of

Uθ 40Α1, ιυ ^ ι, 455ϊθ £. After melting, they melted for 30 minutes. and 0.68 κι ^* π radiated σplava.

EXAMPLE 2. On the other hand, process aluminum alloy slag, maσ. : 50Α1, 1051, 25Αϊ__0з, 55ΪС, δЗιΟο. Β Alundum crucible heated 1 kg of slag and at a temperature of 880 ° C we processed water

105 steam for 10 minutes They leaked 0.59 kg of alloy.

EXAMPLE 3. On the basis of the quality of the products, 20 kg of the aluminum alloys were used, by weight. : 50Α1, 105ϊ, 32Αϊο0з and ΡЗϊΟο and 10 kg of slag for the production of synthetic aluminine sostava, ias. Ζ: 40ΑΪ, ΙΟЗι, 453ϊυο and δΑϊοΟз- Β group of industrial needles

110 print π avili slags. 60 kg of lame and an aluminum alloy with a content of 4 kg of iron were introduced in it. Then, in 60% of the charge, 60 kg of the charge were introduced, containing 6 kg of iron - 4 -

Nowadays, they have melted and divided the metal. With this, the iron content in the final alloy was 0.68%.

115 intentional use

As you can see from the experimental data, the use of the proposed method makes it possible to process aluminum fenders with a metallic output not lower than that. With this, the technology of the process is accelerated, and the exclusion from the technology of the

120 halogen-free fluxes improve the conditions of work and environmentally friendly storage or treatment of secondary slags. Β προtseσσ vοvleκayuτοya shlaκi προizvοdοτva sinτeτichesκiχ siluminοv and οτχοdy προizvοdοτva alyuminievyχ σπlavοv in τοm chiοle zhelezοσοdeρzhaschie. Эσе а а

125 new technology for the production of aluminum alloys.

Claims

Φορ formula 1. The processing of aluminum by-products, including the melting of slag into the operation of reactors, is inadequate to the fact that it is 2. The method of item 1, which is different from the fact that, as a reagent, the slags of the synthetic aluminum are used. 3. For sale, item 1, which differs from the fact that as a part of the reagent use water vapor and carbon-containing material. 4. The method of item 1, which differs in that in the quality of the reagent, aluminum and aluminum alloy alloys are used as well.