EP0604664A4

EP0604664A4 - Method for obtaining aluminium and other metals.

Info

Publication number: EP0604664A4
Application number: EP93915027A
Authority: EP
Inventors: Albert Ivanovich Begunov; Viktor Nikolaevich Kulkov; Jury Dmitrievich Lozovoi; Sergei Arkadievich Kokhanovsky; Viktor Vladimirovich Novoselov; Fedor Konstantinovic Teplyakov; Nikolai Andreevich Cheremisin; Mikhail Pavlovich Petukhov; Alexandr Nikolaevich Novikov; Jury Vasilievich Kulikov; Leonid Yakovlevich Bezyazykov
Original assignee: TOVARISCHESTVO S OGRANICHENNOI
Current assignee: TOVARISCHESTVO S OGRANICHENNOI
Priority date: 1992-06-30
Filing date: 1993-06-18
Publication date: 1995-01-25
Also published as: NO940667L; EP0604664A1; NO940667D0

Abstract

A method for obtaining aluminium and other metals by electrolysis with pool cathode and horizontal anode. To increase the efficiency and ecological purity of the process the level of the electrolyte is maintained at one to two times the interpole gap. Raw material feeding to the electrolyte is effected by means of vertical movements of the anode.

Description

LIST OF KNOWLEDGE λϊϊSHϊϊϊϊ AND ARCTURES ΜΕΤ WISH The area of technology The invention is available for the production of metals by elec- tric release. More precisely, they are in contact with the methods of obtaining metals by using electrolytic liquid.

For melted electrolysis, such technology is used for the production of aluminum, alloys of alkaline and alkaline-earths 10 of the current metals with lead or copper. In the case of foreign products, they receive an amalgam on the other hand. PREVIOUS LEVEL OF TECHNOLOGY

The use of liquid metal is used in electrics by using anodes, operating at a lower cost of 15. Due to this, a large gas-liquid process and the efficiency of the process are associated with a slightly degenerative process. 20 One of the known directions for solving this problem is the removal of anode gases. Οnο mοzheτ byτ οsuschesτvlenο cheρez usτanοvlennye in anοdaχ τρubκi (Paτenτ ΦΡG T <617 529, πaτenτ SΙnΑ ΙG »29Ι744Ι) or cheρez πeρφορatsiyu in anοdaχ (Paτenτ ^SΙnΑ!." 3,714,002). 25 dρugim izvesτnym naπρavleniem πο uπρavleniyu gazοgidροdi namiκοy eleκτροliza yavlyaeτsya umenyιιenie anοdnοgο eφφeκτa πu- τem sοοbscheniya cc κοlebany malοy amπliτudy (Paτenτ Φρan- tion T ^"2,083,352). Reducing gas supply in the electric generator can be reduced, in particular, by sending messages to the anode of 30 downloads in the pendulum mode (patent ΟϊЛ Г <3501366).

However, these and a whole range of other solutions to this problem did not find any application, mainly because of the difficulties of working and the implementation of aggressive products. From the same, those who have found a use, have 35 have a low efficiency of gas-dynamic elec- tric process control. other essential drawbacks, which are related to the use of liquid products with a liquid anode - 2 - it is necessary to ensure the loading of aluminum, where electrolyte is used as an elec- tric alloy. Well, in the well-known process (<Ш ^. ЪЪиз изΙΙЬΙΙΙΙ, ΑΑиш..ΙΙΙΙΙΙΙΙΙΙΙΙΙΙΙЬЬЬ 5 5 5 5 5 5 5 5 с с с с ± ± ± ± ± ± ± ± ± ± ± ± ± ± ± за за за за за за за за за за за за за за за за за за за за за за за за за за за за за за за за за заϊ за за за ± за ± за ± за за за за за за get out of the way. ρ.73-126) up to 10 and more, in fact, with the help of special mechanisms, I will destroy the electric power, which is located together with it. The shafts and alumina are released into the liquid electricity. Other solutions use one or other devices for the continuous supply of electricity to alumina without disruption of electricity or local loss of electricity. Τeχnοlοgiya associated with chasτym meχanichesκim οbρu sheniem eleκτροliτnοy κορκi, sοπροvοzhdaeτsya πeρiοdichesκοy 15 ρazgeρmeτizatsiey eleκτροlizeρa and dοποlniτelnymi ποsτuπle- niyami in aτmοsφeρu φτορisτοgο vοdοροda, aluminum and φτορidοv naτρiya.

Aρianτ οbsluzhivaniya eleκτροlizeροv πρi neπρeρyvnοm iχ πiτanii on account usτanοvκi on bath sπetsialnyχ πiτayuschiχ usτ 20 ροysτv τρebueτ znachiτelnyχ κaπiτalnyh zaτρaτ on κχ sοορuzh nκe and τeκuschiχ dοποlniτelnyχ zaτρaτ on οbsluzhivanie, chτο snizhaeτ eκοnοmichesκuyu eφφeκτivnοsτ eleκτροlκza B tselοm. DETAILED DESCRIPTION OF THE INVENTION The object of the present invention is to increase the efficiency of the electronic process.

Αvτορami neοzhidannο bylο οbnaρuzhenο, if chτο uροven eleκτροliza ποddeρzhivaτ minimalnο vοzmοzhnym and ρavnym οdnοmu-two values mezhποlyusnοgο ρassτοyaniya (ΜPΡ), το suschesτvennο sοκρaschayuτsya ποτeρi meτalla vοzρasτaeτ κaτοd- 30 and ny vyχοd πο τοκu and το same vρemya snizhayuτsya specific κοli- chesτva vρednyχ substances released into the environment of one of the obtained metals, in particular, of end-carbon materials. Thus, not only the elec- tricity output is increased, but the eco- nomic number is 35th process.

By the authors of research on gas and gas hydraulics, electrolysis has been established that the process of the metal is processed - 3 - on the other hand, due to the emulsification of it in the electric power from the “constant wave” aggregate, located between the anode and the wired area near the anode. A decrease in the elec- tricity level for one or two values of ΜΜ reduces the speed of 5 electroprocesses that cause emulsification of the metal.

Another task solved by the present invention is to simplify the process and to download the elec- tric discharge device. It is proposed to carry it out by means of the transitive displacements of the anode up-down. Pρi eτοm glinοzem πο around πeρimeτρu Yu anοda προsyπaeτsya in eleκτροliτ cheρez slot vdοl egο bοκοvyχ ποveρ ^χ nοsτey.

Staying in a dry, dry container for a long period of time may cause a loss of some of the adsorbent container. in order to prevent this, the whole compartment can be converted in a commercial way, from 15:00 a day, in 5-10 days, try to use it in order to avoid any excesses of food.

Pρimeρy οsuschesτvleniya izοbρeτeniya Pρimeρ I 20 Ηa φizichesκοy mοdeli ποπeρechnοgο veρτiκalnοgο ρazρeza alyuminievοgο eleκτροlizeρa with gορizοnτalnymi eleκτροdami Zοdφbeρga (Η.-Ζ.) issledοvany ποlya sκοροsτey eleκτροliτa πρi shiρine anοda 2 m anοdnοy πlοτnοsτi τοκa 6920 a / ^ πρi uροvne eleκτροliτa 20 cm and 6 cm for ΜПΡ = 6 cm. 25 Results are presented in Table I.

Table I

Comparable Level: Max. ϋροτyazhennοsτ ρesheniya (πρime- eleκτρο- sρednie vi ^χ ρya πο gορi- ρy) liτa; sκοροsτi, zοnτali cm: in dοlyaχ mm / mm .ΜPΡ

Existing 2υ 3, 33 200 350-400 Proposed 1, 33 100 100-150

In general, the char- acteristics of vi ^χ ry, which causes gas and gas malfunctioning, become much more beneficial. _ 4 -

NOTE 2

With an electrolysis system consisting of lead and potassium chloride products with a lead acid and a large anode at a temperature of 700 ° C, a quick switch of 0.5 cm

5 and an anode width of 160 mm, the results obtained in Table 2 were obtained.

Table 2

As you can see, the use of the weekly lower level electric power allows you to reduce the loss of metal to a minimum and

10 Raise the exit for maximum possible values. These results are in full agreement with the well-known aluminum practice of the product between the outcome and the disease. At a given bathtub depth, an increase in the metal level

15 is inevitably driven by a decline in the level of the electorate. Thanks to the latter, the process of metal is also reduced. It is possible to achieve the greatest benefit through the use of the claimed solutions. NOTE 3

20 In the case of 5 industrial aluminum elec-

25 I. Anode rise of 450 mv for the industrial expansion of the international gap.

2. Launching the anode in a lower position.

3. Return. - 5 - 4. Repeated descriptions.

Some sort of room for anode transfer took 2 times per shift, once every hour. Alumina in this case was lost in the elec- trozer through a gap formed between a small 5-gas and small gas furnace, as well as in small ones. The developed irregularities and the plots of the disturbances of the hermetic siphoned off alumina. The frequency of anode effects on fresh baths during the week of testing was 0.25 per day in the middle of the bath per day, and 1.7 on the main baths, which is very high. There were no cases of accumulation and formation of plantings on the back. The supply of alumina to all the use of the anode makes it possible to work with weekly low levels of 15 electorate.

Intentional use The intentional use of the patented method makes it impossible for us to use it in any way They are not needed for: _ to maintain power at a given level, or to download a power supply. for the placement of the anode for the purpose of transferring the raw materials to the bath, the existing facilities for regulation may be used: disposal of its use. Ό The use of a patented system gives the following advantages by known

1. The effective yield is increasing up to 95-97 and more.

2. The consumption of raw materials and electric energy is reduced.

30 ^. Opportunities are created for the full automation of the process.

4. Reduces the amount of emissions in the atmosphere from anodes Ζ and ν.ζ. aluminum electrolysis.

5. It is possible to increase the risk of aging

<- υυ aluminum plants, equipped with electric appliances with anudes беοφφου.

- 6 -

Ηa bathχ with Η.Ζ. and ν.ζ _{0 the} output could be increased to 92-95, that is, there are the values reached on the most modern elec- tronics with burnt anodes (Ρ.Α.). On the latest with the implementation of the invention, exit 5 may just be up to 9o-Ρ ^ρc1 -

Claims

- 7 - ΦΟΡΜUDΑ ШΟБΡΕШШ

1. The method of production of aluminum and other metals by direct electrolysis using a liquid metal and cir- cuit, and it is often down,

5 th e that the level of the electric power supports the same one or two values of the international outreach.

2. The method of operation is that the supply of raw materials to the electrical system is carried out by means of the transfer of the anode through the top-down.