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WO1997021628A1 - Procede de production simultanee de chlorure d'aluminium anhydre et de zinc - Google Patents

Procede de production simultanee de chlorure d'aluminium anhydre et de zinc Download PDF

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Publication number
WO1997021628A1
WO1997021628A1 PCT/KR1996/000215 KR9600215W WO9721628A1 WO 1997021628 A1 WO1997021628 A1 WO 1997021628A1 KR 9600215 W KR9600215 W KR 9600215W WO 9721628 A1 WO9721628 A1 WO 9721628A1
Authority
WO
WIPO (PCT)
Prior art keywords
aluminum
zinc
chloride
aluminum chloride
reactor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/KR1996/000215
Other languages
English (en)
Inventor
Soo Tae Kim
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of WO1997021628A1 publication Critical patent/WO1997021628A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B19/00—Obtaining zinc or zinc oxide
    • C22B19/20—Obtaining zinc otherwise than by distilling
    • 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
    • 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
    • C01F7/58—Preparation of anhydrous aluminium chloride
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/80—Compositional purity

Definitions

  • the present invention relates to a process for simultaneously preparing anhydrous aluminum chloride and zinc. More particularly, the present invention relates to a process for preparing anhydrous aluminum chloride which comprise mixing zinc chloride with aluminum metal at an equivalent ratio, and recovering the anhydrous aluminum chloride by cooling and condensing the vaporous aluminum chloride which is sublimated at a temperature of 183 ° C when to heat the said mixture; and simultaneously separating and recovering zinc, which is melted at a temperature of 420 ° C, by the difference of gravity.
  • Anhydrous aluminum chloride has been used as a catalyst for cracking process of petroleum, Friedel-Craft Reaction, etc., and the hexa hydrate has been used for refining wool, an antiseptic for wood, an additive for dye, petroleum refining process, paper manufacturing, paint, pigments, printing ink, etc.; and zinc metal is used at a large amount for steel plating, pipe plating, die-casting, copper-alloy, etc.
  • anhydrous aluminum chloride Conventionally, the various methods of production of anhydrous aluminum chloride have been known, and the methods thereof are classified generally as follows, for example, a method which reacting aluminum metal with chlorine at a high temperature; a method which reacting aluminum metal with hydrochloride gas at a high temperature; a method which reacting alumina or alumina-containing substance such as bauxite with carbon monoxide and chlorine or phosgene; a method thereof by reacting alumina or alumina- containing substance with chlorine under the present of carbon, etc.
  • anhydrous aluminum chloride which comprises by reacting aluminum metal with chlorine or hydrochloride gas at a high temperature
  • the said method comprises blowing chlorine gas into the melted aluminum and cooling the sublimated aluminum chloride to obtain it in a powder shape or massive state.
  • it is necessary to melt alumina in the presence of a flux thereof around 960 °C or more, and subsequently subject to electrolysis it, thereby causing the method to be required much higher cost.
  • Patent Publication No. 7640/1976 Japanese Patent Publication No. 27838/1975, Japanese Patent Publication No. 5526/1984, etc.).
  • zinc metal has been conventionally prepared by dry preparation method and wet preparation method.
  • the present inventors have undertaken earnest studies in order to solve the above problems in the prior art, and as a result, have found that aluminum chloride and zinc can be easily obtained by reacting zinc chloride with aluminum , which led to the completion ofthe invention.
  • an object ofthe present invention is to provide a novel method of preparation of aluminum chloride and zinc simultaneously.
  • Figure 1 is a front view of an apparatus for simultaneously preparing aluminum chloride and zinc in accordance with the present invention.
  • Figure 2 is an enlarged front view of a shelf embedded with aluminum granules mounted inside the refining tower ofthe apparatus shown Figure 1.
  • Figure 1 is a front view ofthe apparatus for simultaneously preparing aluminum chloride and zinc, which consists ofthe reactor 1. the multi-stage refining tower 6 and the rotating tube 9.
  • the reactor is equipped with inlet 3 for introducing the molten zinc chloride, hopper 4 for introducing aluminum powder or aluminum particles, an agitator 2 And the bottom of the reactor 1 has the drain pipe 5 for draining the formed molten zinc metal
  • the refining tower has the reticulated shape - shelves 7 embedded with aluminum granules 8
  • the vaporous aluminum chloride and zinc chloride generated from the reactor 1 are contacted with aluminum granules on the shelves, thereby the unreacted mist zinc chloride from the reactor reacting with aluminum in this tower
  • the obtained aluminum chloride containing a trace amount of zinc chloride from the refining tower is passed the rotating tube 9, wherein aluminum granules are embedded at an amount of about two third (2/3) ofthe volume of the rotating pipe
  • Figure 2 is the shelves part 7 of Figure 1
  • the present invention provides a method for producing aluminum chloride and zinc which comprises introducing molten anhydrous zinc chloride into the melt - bath (reactor) having an agitator 2, and adding, while agitating, aluminum powder or melted aluminum which is reacted with zinc chloride
  • the molten aluminum or aluminum powder is added, while agitating , to a high purity zinc chloride in molten state in the reactor, maintaining the average temperature of 420 to 500 ° C , whereby aluminum chloride being sublimated at 183 °C or more, and then the sublimated aluminum chloride is subjected to be cooled and desublimated to produce aluminum chloride in power or flake shape (crystal or prismatic state).
  • zinc metal is settled down on the bottom ofthe zinc chloride melt in the reactor by the difference of specific gravity and the resulted zinc metal is drained through drain pipe to a mold and then solidified to give a desired product.
  • the high-value zinc metal and aluminum chloride can be obtained by reaction of zinc chloride and the molten aluminum metal, especially zinc metal is obtained at the rate of 3.6 times in weight with regard to an amount of aluminum metal being reacted. Accordingly, the present invention is a useful melt- metathesis reaction economically to obtain aluminum chloride and zinc metal
  • the reaction is preferably carried out in the aforementioned temperature range. It is not proper to carry out the reaction more than 740 ° C , since zinc chloride is vaporized at the said temperature to contaminate the sublimated aluminum chloride, and also below 420 ° C which is fusing temperature of zinc, it is difficult to obtain zinc continuously.
  • the reaction temperature is preferably 420 to 500 ° C , more preferably 450 to 480 °C .
  • the purity of zinc metal and aluminum chloride depend on the purity ofthe raw material, zinc chloride and aluminum. Especially, when pure zinc chloride containing not more than 100 ppm of iron, nickel, cadmium, etc., or refined zinc chloride being eliminated the above metal components is used, the zinc is produced with high purity, i.e. 99% to 99.8% purity.
  • the pure aluminum chloride being sublimated is subjected to be guided to a multi-stage contact refining tower 6, in which vaporized zinc chloride being accompanied, maintaining vapor temperature of 185 to 80 ° C , is mostly converted to zinc and aluminum chloride by contact with aluminum granules or particles, and then in the next step, vaporous aluminum chloride is passed through the rotating tube 9 being embedded with aluminum particles (5 to 10 mm thick) to react zinc chloride being present at a trace amount, thereby zinc chloride being eliminated as being converted to zinc metal, and then gaseous aluminum chloride with high purity is cooled to give as powder or prismatic shape
  • the molten liquid consisted of 95% of zinc chloride, 2% of iron, 1% of lead and 2% of zinc oxide, and 26.4 g of aluminum powder were added, and then the reactor was heated at an average temperature of 480 ° C for 50 minutes to obtain 97.4 g of metal consisted of 98.5% of zinc metal, 1% of iron, and 0.5% lead.
  • the vaporous zinc chloride being contaminated with vaporous aluminum chloride simultaneously is reacted with aluminum granules or particles and subsequently, zinc chloride is converted to zinc powder, which is settled down on the reactor, thereby pure aluminum chloride can be obtained.
  • the refined zinc chloride being used leads to a production ofthe pure zinc metal. Since aluminum metal is easily become an alloy with zinc metal, it is preferable to feed aluminum power to become an equivalent amount to the molten zinc chloride, which is present as a little excess, in the reactor, in order to avoid formation of alloy. And such a product can be obtained without any further refining process
  • a process for simultaneously preparing anhydrous aluminum chloride and zinc according to the present invention provides an industrially useful and economical one for obtaining the pure final product without further refining process

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Inorganic Chemistry (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Manufacture Of Metal Powder And Suspensions Thereof (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)

Abstract

Cette invention porte sur un procédé, permettant de préparer simultanément du zinc et du chlorure d'aluminium, qui consiste à faire réagir du chlorure de zinc fondu avec de l'aluminium pulvérulent, en granules ou sous forme de liquide de fusion, à haute température dans un réacteur tout en agitant le chlorure d'aluminium gazeux ainsi produit contenant du chlorure de zinc pour le faire entrer en contact avec de l'aluminium dans une tour de raffinage comportant des rayons incrustés de granules d'aluminium puis à le faire retourner à l'état solide. Après avoir retiré le zinc du fond du réacteur, on fait, si nécessaire, de surcroît, passer ce gaz de chlorure d'aluminium résultant dans un conduit tournant enrobé de granules d'aluminium afin d'obtenir du chlorure d'aluminium très pur.
PCT/KR1996/000215 1995-12-12 1996-11-25 Procede de production simultanee de chlorure d'aluminium anhydre et de zinc Ceased WO1997021628A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1995/48797 1995-12-12
KR1019950048797A KR0161098B1 (ko) 1995-12-12 1995-12-12 무수 염화알루미늄 및 아연의 동시 제조방법

Publications (1)

Publication Number Publication Date
WO1997021628A1 true WO1997021628A1 (fr) 1997-06-19

Family

ID=19439323

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR1996/000215 Ceased WO1997021628A1 (fr) 1995-12-12 1996-11-25 Procede de production simultanee de chlorure d'aluminium anhydre et de zinc

Country Status (2)

Country Link
KR (1) KR0161098B1 (fr)
WO (1) WO1997021628A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106277036A (zh) * 2015-05-21 2017-01-04 华仁药业股份有限公司 无水有机溶剂法制备氯化锌的制备方法

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20010087955A (ko) * 2000-03-09 2001-09-26 김수태 무수염화알루미늄 및 철분말의 동시 제조방법
KR101219184B1 (ko) * 2010-10-18 2013-01-07 한국기계연구원 염화알루미늄의 제조방법 및 이에 의하여 제조되는 염화알루미늄
KR101404762B1 (ko) * 2013-06-24 2014-06-12 김수태 고순도 염화알루미늄 및 아연의 동시 제조방법

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1467268A1 (de) * 1964-10-06 1969-03-13 Imp Smelting Corp N S C Verfahren zum Herstellen von Aluminiumchlorid
GB1185234A (en) * 1967-10-13 1970-03-25 Imp Smelting Corp Ltd Production of High-Purity Aluminium Chloride
FR2277038A1 (fr) * 1974-07-05 1976-01-30 Esb Inc Procede de preparation de chlorure d'aluminium anhydre purifie
FR2449059A1 (fr) * 1979-02-16 1980-09-12 Alusuisse Installation pour produire du chlorure d'aluminium solide

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1467268A1 (de) * 1964-10-06 1969-03-13 Imp Smelting Corp N S C Verfahren zum Herstellen von Aluminiumchlorid
GB1185234A (en) * 1967-10-13 1970-03-25 Imp Smelting Corp Ltd Production of High-Purity Aluminium Chloride
FR2277038A1 (fr) * 1974-07-05 1976-01-30 Esb Inc Procede de preparation de chlorure d'aluminium anhydre purifie
FR2449059A1 (fr) * 1979-02-16 1980-09-12 Alusuisse Installation pour produire du chlorure d'aluminium solide

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106277036A (zh) * 2015-05-21 2017-01-04 华仁药业股份有限公司 无水有机溶剂法制备氯化锌的制备方法

Also Published As

Publication number Publication date
KR0161098B1 (ko) 1998-11-16
KR970042265A (ko) 1997-07-24

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