CS220559B1 - Method of preparing pure aluminium chloride hexahydrate - Google Patents

Method of preparing pure aluminium chloride hexahydrate Download PDF

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Publication number
CS220559B1
CS220559B1 CS794728A CS472879A CS220559B1 CS 220559 B1 CS220559 B1 CS 220559B1 CS 794728 A CS794728 A CS 794728A CS 472879 A CS472879 A CS 472879A CS 220559 B1 CS220559 B1 CS 220559B1
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CS
Czechoslovakia
Prior art keywords
pactbopa
bec
chloride hexahydrate
solution
aluminium chloride
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CS794728A
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English (en)
Inventor
Siegfried Ziegenbalg
Gerhard Fischer
Wolfgang Stoelzel
Original Assignee
Siegfried Ziegenbalg
Gerhard Fischer
Wolfgang Stoelzel
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Application filed by Siegfried Ziegenbalg, Gerhard Fischer, Wolfgang Stoelzel filed Critical Siegfried Ziegenbalg
Publication of CS220559B1 publication Critical patent/CS220559B1/cs

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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
    • C01F7/48—Halides, with or without other cations besides aluminium
    • C01F7/56—Chlorides
    • C01F7/62—Purification
    • 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
    • C01F7/48—Halides, with or without other cations besides aluminium
    • C01F7/56—Chlorides

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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)
  • Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)

Description

HA3BAHME M30EPETEHHB ΓλΤ............/· 2 θ
Cnocoó nojiyqeHHH reKcamnpaTa xjiopoa θλκμηηηη
OEJIACTB ΠΜΕΗΕΗΗΗ H30EPETEHHH
HacTonmee H3oópeTeHne KacaeTCH cnocoóa nojiyneHHH reKcarH£paTaXjiopoa aJUDMHHHH B ΒΗΛβ KpnCTaJUHI3aTa, TepMHHeCKHM pa3JI0He-ΗΗΘΜ ΚΟΤΟρΟΓΟ HOJiynaiDT ΓΛ0ΗΟ3βΜ, ^OCTaTOHHO HHCTHÍÍ JVLH ΠρΟ-H3BOJ[CTBa aJDCMHHHH. XAPAKTEFHCTffiíA K3BECTHHX TEWHECKHX ΡΕΙΙΙΕΗΡΓΚ Η3βθοτθη cnocoó nojiyneHUH socTaTOHHO nncToro reKcarajipaTaxjiopnna βλκμηηηη (ALCL^ · 6 HgO) b Buje KpHCTaoH3aTa πυτθμMHoroKpaTHOít KpHCTajuni3amni (BHKJiajmoe. onscaraie z3oópeTeHSHκ HeaKnenTOBaHHOft 33Ηβκθ ΦΡΓ2Ι5£2ο64).Πο 3T0My H3BecTHOMy cno-coóy 3arpH3HeHHHít KpncTaJum3aT, nojiynaeMNft npn Hcnapemni ncxoa-Horo pacTsopa, ohhtl pacTBopjWT b βολθ ή πυτθμ μηογοκρβτηογοHcnapsHna προΗ3Βοππτ óojiee nncTHž προηγκτ. PacTBopemie Kpn-CTajumsaTa h ncnapemie pacTBopa ποΒΤορίποτ ctojilko pa3, noKaHe noJiynaT EpucTajumsaT socTaTonHoíí hhctoth. MHoroKpaTHaa κρη-CTaJUiii3aniiH, c ojmoft ctopohu, no3BOJiaeT nojiymiTL aJUCMEtmieByDcojib bhcokoS hhctoth, c ApyroS οτοροΗΗ, BHnapKBaHne 0ΟΛΒΙΙΙΟΓΟKOjnmecTBa βολή TpeóyeT óojiLnioro oóteMa annapaTypH, noBmnaeTpacxoH' 3HepniH a y;jopozaeT nponecc. íajiee H3BecTH0, ητο HcnapneMoe KOjmnecTBO βολή ropa3£o Huse,ecjni ajih nojiyneHiíH reKcarn£paTa xjiopoa βλκμηηηη πρκΜβΗΗΐοτMHorocTyneirqaTHft nponecc $paKiíHOHnpoBaHHoň KpncTajum3annn(BHKJiajíHoe onHcainie K3oópeTHHH κ HeaKijenTOBaHHog 3aHBKe ΦΡΓ1592064; BHKJiajmoe onncanne Η3θόρτθΗΚΗ κ HeaKnenTOBaHHoft 3a-ΗΒΚβ ΦΡΓ 1592070). - 2 - Πο λ&ηηομυ η3βθοτηομυ cnocoóy b pe3yjiBTaTe HenČJiHoro ncnape-hhh Ha nepBoft cTyneHH npouecca nojiynaioT uocTaTOHHo hhcthííKpHCTaJuiií3aT. OcTaTOHHHií pacTBop, oóorameHHHíí npHMecHMH, 3a-rpyzaioT Ha BTopyio CTyneHB npouecca. noJiynaeMHft Ha btoíí CTajnniKpncTajuni3aT noHHzeHHofi hhctoth B03BpamaioT Ha nepByio CTyneHBnpouecca, a óojiee 3arpH3HeHHHň ocTaTonHuít pacTBop HanpaBJíHDTHa TpeTBio CTyneHB npouecca KpncTaJuni3auiiH, rue oh uaJiBine nc-napneTcn.
KpjíCTBJuiHsaT BecBMa hh3koíí hhctoth BO3BpamaR3T Ha BTopyio cTy-πθηβ KpncTajuní3amin, a chjibho 3arpn3HeHHHíi ocTaTOHHUfl pacTBopBHÓpaQHBaiDT. Πο 3T0My H3BecTH0My cnocoóy, npaB.ua, oTnanaeT noBTopHoe pacT-BopeHne KpHCTajuiH3aTa, ho 3aT0 HeoóxojniMo Hajmune Tpex kom-imeKTHHx KpncTajuni3auH0HHHX ycTaHOBOK, BKjnonaH ncnapnTejiB,TenjiooÓMeHHHK h ueHTpn$yry. Ciona othochtch eue ubh annapaTac MemajiKoft n oóorpeBOM ath nepeBeueHHH KpncTajum3aTa BTopofth TpeTBeft CTyneHeií b nyjiBiiy. ΡΪ3 θτηχ Tpex KpncTajuni3auH0HHHXycTaHOBOK AOCTaTOHHO ΗΗΟΤΗϋ KpHCTaJUIH3aT np0H3B0ÍBTCH TOJIBKOHa nepBoit CTynemi; ocTajiBHue uBe CTyneHH cJiyzaT tojibko ajihKOHueHTpHpoBaHHH npuMecefi b BHÓpacuBaeMOM pacTBope bo3moxho 'ΜβΗΒΠΙβΓΟ OÓBeMa. K3BecTH0 Tanze, ητο AOCTaiouHO hhcthé reKcarHjjpaT xjiopnnaajnoMHHHH (ALCLg · 6 1^0) b βηαθ KpncTaJum3aTa mozho nojiynzTBnyreM KpynHO3epHncToíí KpiicTajuni3auHH no cnocoóy nceBAcOsnze-HHH H npOMUBKH KOHUeHTpupOBaHHOft COJIHHOft KHCAOTOÍÍ Ha UeHTpH-ΦϊΓβ. (H.O.Poppleton; D.L. Sawyer. Hydrochloric Acid leachingof Calcined Kaolin to Produce Aluminia TMS-paper selectin,Paper NOA 77-66) .
KpynH03epHHCTan KpncTajum3aunn reKcarnupaTa xjiopnua ajimnHHH--KpncTajum3aTa ocJiozHneTCH HajnnmeM y3K0íi MeTacTaÓmiBHoň oÓJia-CTH H BHCOKOft CKOpOCTBD 0Ópa30BaHHH 3apoAHmeň. ΚρΟΜΘ ΤΟΓΟ,KOHenHan cKopocTB BunaneHHH KpncTajuiOB b pacTBope H3-3a bh-COKO& bh3kocth pacTBopa h Heóo^Bnjoro pa3JnraaH b iuiothoctzMesuy KpHCTaoaMH h pacTBopoM οηθηβ Majia. Πρη KpHCTajum3auHH - 3 - •B nceBAOHHSeHHOM CJIOe 3T0 npWBCOTT K HedOJILmoft CKOpOCTH ΤΘΉΘΗΙΪΗnepecmueHHoro pacTBopa h KrnismeM cJioe zpucTajuioB, n nojiyqemwHeóojiMiHX KOjnreecTB npncTaJUOB Ha I nepecwHHoro pacTBopa,a Tanze κ HH3K0ft ynejiBHOit npon3BojmTejiBHocTn npncTajuni3aiBiH.JIpyniM ηθλοοτβτκομ Η3βθοτηογο cnocoóa ηβληθτοη Tanze Heoóxo-íjimoctb pereHepano KomíeHTpupoBaHHofi cojihhoS hhcjioth H3 3a-γρη3ηθηηογο npoMKBOHHoro pacTBopa. Η3ΒβοτβΗ Tanze cnocoó nojiyneHHH nocTaTOHHOHHCToro rencarnnpaTaXTiopoa ajmMHHHH b Bnne npHCTajuni3aTa H3 3arpH3HeHHux pacTBO-poB xjiopmia amcMiiHHH, noTopuft b pe3yjiLTaTe npHHyíHTejiLHoft nnp-nyjiHurai cycneH3nn npncTajuiOB b 30He ηηπθηηη npncTajuiH3aTopaco3naeT Taným noBepxHOCTB npHCTajuiOB, noTopaa nocTaTOHHa ,βληCHnzeHHH nepecmneHHH pacTBopa 3a cneT pocTa npncTajuioB. B pe3yjEBTaTe θτογο nonynaioT onnynníi npynH03epHHCTHfí npncTaji-jiH3aT e HeóojiBinoS ocTaTonHoft BJiazHOCTBm, ηοτορυϋ mozho hhcthtbnpoMHBHOft Majio3arpH3HeHHHM hcxo£heim pacTBopoM Ha neHTpnmyre.H3-3a ΤΟΓΟ, ΉΤΟ πρκ 3T0M H3BeCTH0M CHOCOÓe paCTBOpHMOCTB ΓΘ-ncamjípaTa xnopnna ajiKMHHHH npanTunecnii He3aBncHMa ot Tewmepa-Typu, noJiynaioT nepecumeHiie pacTBopa xjiopoa amoMHHna nyTeMH3OTepimecnoro ncnapeHHH pacTBopnTejin. Ondáno, no TeroioTex-HHHeCHIIM npHHHHaM 3T0 TpeóyeT npOBeneHHH MHOrOCTyneHHaTOrOnpncTajuiH3ainioHHoro nponecca, b ηοτοροΜ oóorpeB Ha HH3noTeM~nepaTypHHX CTyneHHx ocymecTBJíHeTCH npenMymecTBeHHO 3a οηβτ _BHnapa, nojiynaeMoro Ha BHConoTeMnepaTypHHX CTyneHHX, a rpe-ιοίφΐβ nap HcnojiB3yeTCH npenMymecTBeHHO jyix. oóorpeBa Ha CTyne-hhx c HanóoJiee bhcokoS TeMnepaTypofi.
IW> H30EPBTEHW IíejiBKi H3oópeTeHHH ηβληθτοη MHorocTyneimaTHií cnocoó npiicTajum-3Ατπτπ ,hjlh no^yneHHH αοοτητοηηο ήηοτογο npHCTajuiH3aTa npn HH3-noM pacxo^e sHepro. - 4 -
K3JI0KEHKE CyiUHOCTH H30EPETEHKH . Μ3θόρβτθΗΗθ ΖΜθβτ 3a£any, co3aaTi> MHorocTyneHnaTHii nponeccKpncTaJUDT3annH.
CorjiacHo H3odpeTeHHio, sahany pemaioT τβκημ odpa3OM, ήτο cMectH3 MaTOHHoro pacTBopa (ueHTpH$yraTa) h hcxoshoio (προμήβοηηο-ro) pacTBopa, nojiynaeMaa nocjie neHTpn$ympoBaHHH η προμηβκη,3arpyzaioT Ha Ty CTyneHB KpHCTaoH3anHH, TeMnepaTypa κοτοροϋHanóojiee HH3KaH, a 3aTeM nepeKaHHBaiOT b προτπΒΟΤοκβ Ha cTy-•neHL c' Handojiee bhcoko% TeMnepaTypoii. Bhxob npHMeceii c BHdpa-CHBaeMHM ΜΒΤΟΗΗΗΜ paCTBOpOM OCyHíeCTBJIHeTCH TOJIBKO Ha 3T0ÍÍcTyneHH, a nyjiLna KpHCTajuioB bhbojbttch oT^eJitHo H3^assoroKpncTaJuiH3aTopa. BunycKOM MaTOHHoro pacTBopa H3 KpHCTajuiH3aT0-poB KOHijeHTpanHH npHMeceii ycTaHaBJíHBaeTCH c thkhm pacneTOM,hto npn HcnapeHHH πομημο reKcamflpaTa xaopima θλκμηηηη He bh-KpncTajuni30BHBaK)TCH $a3H, conepsamne μηογο npHMeceii.
OcoóeHHoe 3HaneHHe npn btom ημθθτ napareHe3HC jwyx cojieftAlCl3 · 6 I^O/KCl, Tas Han npn oóhhhhx conepzaHHHX KCL bhcxoahom pacTBope, cocTaBJíHHííHx npHM. 0,5 Bec. %, KCl Btma^jíaeT ÓHCTpee Bcero. Torna MaTOHHuS pacTBop npn TeMrieparype > 55°C cojiepKHT npHM. 3,7 Bec. % KCl, a npn 85°C - npHM. 5,6
Bec. % KCL.CJieAOBaTejiLHO, noBHmeHHaH TeMnepaTypa BHdpacHBa—eMoro MaTOHHoro pacTBopa, npn HanpaBJíeHHH pacTBopa b προτΗΒΟ-TOKe, π03Β0ΖΗβτ dojiee BHCOKoe KOHneHTpnpoBaHHe npHMeceii. B pe3yjiBTaTe θτογο HeodxonnMoe KOjnrcecTBo BHdpacHBaeMoro pa-CTBopa CTaHOBHTCH MeHBme, a H3BJieHeHHe ALCLg b KpHCTajuiH3a-τθ b OTHomeHHH κ KOHneHTpanHH ALCL3 b hcxojihom pacTBope pa-οτβτ. IIocjieOTeMy cnocodcTByeT eqe τοτ φθκτ, ητο noBnmeHne koh-HeHTpanHH MgCLg h npyrnx JierKopacTBopHMHx npHMeceS b pe3y;iL-TaTe BucajiHBaHHH πρΗΒοηητ κ nojiyneHHio dojiee HH3K0Ě KOHneHTpanHHAlCl3 b BudpacHBaeMOM μβτοηηομ pacTBope.
Enaronapn pa3nejn>H0My BHBony nyjiLHEi icpncTajuioB H3 Kašnoϋ cTy-• neHH npouecca KpHCTaJUH3aiíHH mohho H3deraTL KOHTaKTa Mesny
KpHCTaJUiaMH, 0dpa30BaBEHMHCH H3 ΜΗΤΟΗΗΟΓΟ pacTBopa C ΞΗ3ΚΗΜ - 5 - co^epK&HHeM npHMecH b HH3K0TeMnepaTypH0ft CTyneHH c óonee 3a-rpH3HeKHHM MaTOHHHM paCTBOpOM 03 BHCOKOTeMnepaTypHHX CTyiieHeft.B pe3yjjLTaTe 3τογο KOHizeHTpaixHH npHMeceft noBHcmiact όκ He tojibko b npmiíniaíaiueM nocjie neHTpH$yrHpoBaHHH waTOTHQM pacTBope,ho h b caMnx KpHCTajuiax, nocKOJiBKy FeCLg, PeCl^ 0 MgCL2 0Ópa3yiQT c A1CL3 - 6 HgO TBepjme pacTBopa, yjipBJíeTBopHWie3aK0Hy pacnpejiejieHHH HepHCTa. ΠΡΜΜΕΡ OCWCTBJTEm Μ30ΕΡΕΤΕΗΜΠ K3oópeTeHne nojíptfÓHee odsacHaeTCH Ha npHMepe. Φηγ. I noKa3HBaeT aimapaTypHyro TexHOJionreecKyio cxeMy KByxcTy-neHHaTOÍÍ KpHCTaJIH3ai#I0HH0ÍÍ yCTaHOBKH. JUh ΠρΟΜΗΒΚΗ KpHCTaJUHI—3aTa Ha neHTpn&yre cjiysHT ropOTHň HacmneHHELH hcxokhhé pacTBopc cojiepjKaHHSM 29 Bec. % ALCL3 h, HanpHMep, 0,2 Bec. % MaCL, 0,5 Bec. % KOL, 0,4 Bec. % MgCi^ , 0,25 Bec. % CaCl^ , 0,012Bec.· % PeC^3, 0,003 % Si02, 0,003 Bec. % Ti02 0 0,004 Bec. %V2°5- IIojiyHaeMyE CMecB 03 neHTpH$yraTa 0 προμκβοήηογο pacTBopa se-HOJIHOCTBIO HCnapHIOT B HH3K0TeMHepaTypH0Íl KpHCTaZUIH3ami0HH0SCTyneHH, a ocTaTOHHHíi pacTBop nepeKanHBaioT b BHCOKOTeMnepa—TypHyio cTyneHt nponecca KpHCTajuiH3aiX0H. H3 Hee βηβολητ ok. 8 %MaTOHHoro pacTBopa ot KO-uraecTBa Hcxojmoro pacTBopa.. OóycjiOB-jreHHHe θτημ ποτβρπ AI1CL3 cocTaBJíJWT ok. 7 % οτ ηοχοληογο erocojxep®aiDiH, KpHCTajuiH3aT oóezx cTyneHeft nepe3 aimapaT jwnepeBejieHHH KpHCTajmH3aTa b nyjitny nocTynaeT b neHTpHtžyry, 0 nOCJlě npOMHBKH HCXO^HEM pacTBopoM COKepZHT 0,02 Bec. % HaCL,0,05 Bec. % KCi, 0,05 Bec. % MgCL2, 0,025 Bec. % Cad2, 0,0014 Bec. % 0,0003 Bec. % Si02 , 0,0003 Bec. % Ti02 0 0,0004 Bec. % ν20β. TeinooÓMeHHHK BHCoKOTeMnepaTypHox CTy-neHH oóorpeBaioT napoM ηη3κογο jiaBJíeHHH, TenjiocoAspscaHHe nojiy-HaeMHX BHnapOB HCnOJILSyDT JVLH HCnapeHHH paCTBOpHTeJLH B HH3K0-TeMnepaTypHoií CTyneHH KpHCTaJUi03aiíHH. Pacxoz napa cocTaBJíHeT0,6 t/t Kp0CTajuiH3aTa. -G-
I
ΦΟΡΜΑ H3OEPETEHHH 1. Cnocoó nojiynsHHH ήηοτογο reKcarHjipaTa xjiopz.ua ajnoMZHHH B bz-Λθ KpncTaJUin3aTa 23 3arpH3HeHHnx pacTBopoB ALCL3 nyTeM Kpyímo-3epHHCT0ft KpncTajiJiH3aunH c πρηΗγπιιτθ;ΐΒΗθϋ nnpKyjiHujieft cycneH-3HH KpncTaJuioB η προΜΗΒκη Ha iíeHTpeópyre c πομοιιιβιο ncxojíHoropacTBopa c h23khm co^epKaHzeM npzMecefi, oTjnrcawifiCH τθμ, ψγο b MHorocTynsHHaTHx KpncTaJuinsanHOHHHx ycTaHOBKax nojiyza-eMan npH ηθΗΤρΖ(φ7ΤΗρ0Β3ΗΗΖ Η πρΟΜΗΒΚθ CMeCb 23 MaTOHHOrO paCT-Bopa (neHTp2$yraTa) 2 ζοχοαηογο (προμηβοηηογο) pacTBopa nocTy-naeT Ha CTyneHL npouecca KpzcTajiJiH3anzH c sazóojiee hhskoSTeMnepaTypoít, OTexwa b προτζΒΟΤΟΚβ nepeKanzBaeTCH Ha CTyneHL·c cawoíí bhcokoíí TeMnepaTypofí, 23 κοτοροδ bhboaktch 3arpa3HeH-ΗΗδ MaTOHHHÍt paCTBOp. 2. Μθτολ nojiyqeHZH ήζοτογο reKcarzjjpaTa xjiopz^a ajnoMZHZH b BZ«eKpHCTajuiH3aTa no nymcTy I, OTjnraaroinzftcfl tom, hto nyjibna κρζ-CTaJUIOB BHBOOTTCH 23 KaS^OrO KpZCTaJDIE3aT0pa OTEeJIBHO. Ί-
AHHOTAIW
Cnocoó nojiyneHHH ηηοτογο reKcaraspaTa xsopzsa amoMZHzn. H30ÓpeTemie EacaeTCH MeTosa nojtyneHHH ALCL3 · 6 HgO b Bu-se Kp2CTajuni3aTa, πρζ τθρμηήθοκομ pa3JioseHO κοτοροΓο nosy-HaDT TJIHH03eM, SOCTaTO^HO HZCTUS jyiH np0H3B0SCTBa aJIKMHHH.
UejiL HsoópeTeHHH 3aKJimaeTCH b nojiyneHiiH socthtohho ηζοτογοKpncTa4jm3aTa πρκ HeóojiBnioM pacxose 3Hepnm. 3asana, coiuiacHO H30ÓpeTeHiw, pemaeTCH τβΜ, hto nojiyqaeMannpn UeHTpH$yrÉpOBaiDni Η ΠρΟΜΗΒΕΘ CMeCB H3 MaTOHHOrO paCTBOpa(iíeHTpn$yraTa) z zcxosHoro (προμηβοηηογο) pacTBopa nosaeTcaHa cTyneHB nponecca KpncTaOT3anm c Hazóo^ee HH3E0S TeMiiepa-Typoft h OTciosa b προτζΒΟΤοκθ nepeKanzsaeTCH so CTynemi c ca-MOÍÍ ΒΗΟΟΕΟϋ TeMHepaTypoS, H3 KOTOpOS BHBOSHTCH KOHUeHTpzpOBaH-HHÉ npHMeCHMZ MaTOHHHfi paCTBOp. ""

Claims (2)

  1. PŘEDMĚT VYNÁLEZU
    1. Způsob výroby čistého hexahydrátu chloridu hlini-tého v podobě krystalizátu ze surových roztoků AlCl-jhrubozrnou krystalizací s nucenou cirkulací suspenzekrystalů a promýváním na odstředivce výchozím roztokemo nízkém obsahu příměsí, vyznačující se tím, že směsmatečného roztoku a výchozího promývacího roztoku,získaná v mnohastupňových krystalizátorech odstředě-ním a promytím se vede na krystalizační stupeň s nej-nižší teplotou a odtud se protiproudně přečerpává nastupeň s nejvyšší teplotou, z něhož se odvádí surovýmatečný roztok.
  2. 2. Způsob podle bodu 1, vyznačující se tím, že sekrystalizační břečka odvádí z každého krystalizátoruodděleně. Uznáno vynálezem na základě výsledků expertizy,provedenéÚřadem pro vynálezectví a patentnictvi, Berlín, DD. 1 výkres
CS794728A 1978-07-31 1979-07-04 Method of preparing pure aluminium chloride hexahydrate CS220559B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DD20703078A DD137575B1 (de) 1978-07-31 1978-07-31 Verfahren zur herstellung von reinem aluminiumchloridhexahydrat

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CS220559B1 true CS220559B1 (en) 1983-04-29

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CS794728A CS220559B1 (en) 1978-07-31 1979-07-04 Method of preparing pure aluminium chloride hexahydrate

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US (1) US4264332A (cs)
CS (1) CS220559B1 (cs)
DD (1) DD137575B1 (cs)
DE (1) DE2919689A1 (cs)
HU (1) HU181906B (cs)
SU (1) SU1017676A1 (cs)

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Publication number Priority date Publication date Assignee Title
FR2518986B1 (fr) * 1981-12-30 1985-09-06 Criceram Procede de preparation d'alumines de haute purete a partir de solutions impures de chlorure d'aluminium
ID29093A (id) * 1998-10-16 2001-07-26 Lanisco Holdings Ltd Konversi mendalam yang menggabungkan demetalisasi dan konversi minyak mentah, residu atau minyak berat menjadi cairan ringan dengan senyawa-senyawa oksigenat murni atau tak murni
FR2785289B1 (fr) * 1998-10-16 2007-01-05 Pierre Charles Jorgensen Conversion profonde jumelant la demetallisation et la conversion de bruts, residus ou huiles a l'aide de composes oxygenes purs ou impurs (h20 c02 co accompagnes de n2 h2 sh2...)
EA018604B1 (ru) * 2011-05-31 2013-09-30 Елена Арсеньевна Петрова Способ получения хлорсодержащих солей алюминия и технологическая линия для их получения

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US3406010A (en) * 1965-09-08 1968-10-15 Anaconda Co Recovery of pure crystals of aici3.6h2o and production of aluminum oxide product therefrom
US3446578A (en) * 1966-10-26 1969-05-27 Anaconda Co Purification of aluminum chloride
DD147185A3 (de) * 1978-04-24 1981-03-25 Siegfried Ziegenbalg Verfahren zur herstellung von reinem aluminiumoxid

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DD137575B1 (de) 1980-12-24
DE2919689A1 (de) 1980-02-14
US4264332A (en) 1981-04-28
SU1017676A1 (ru) 1983-05-15
DD137575A1 (de) 1979-09-12
HU181906B (en) 1983-11-28

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