FI126718B - Menetelmä ferronikkeliprosessista tulevien pölyjen hyödyntämiseksi ja menetelmällä valmistetut sintratut pelletit - Google Patents

Menetelmä ferronikkeliprosessista tulevien pölyjen hyödyntämiseksi ja menetelmällä valmistetut sintratut pelletit Download PDF

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Publication number
FI126718B
FI126718B FI20136274A FI20136274A FI126718B FI 126718 B FI126718 B FI 126718B FI 20136274 A FI20136274 A FI 20136274A FI 20136274 A FI20136274 A FI 20136274A FI 126718 B FI126718 B FI 126718B
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Finland
Prior art keywords
pellets
sintering
dust
zone
nickel
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FI20136274A
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English (en)
Swedish (sv)
Inventor
Helge Krogerus
Pasi Mäkelä
Visa Kivinen
Original Assignee
Outotec Finland Oy
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 Outotec Finland Oy filed Critical Outotec Finland Oy
Priority to FI20136274A priority Critical patent/FI126718B/fi
Priority to CN201480070250.0A priority patent/CN105829552A/zh
Priority to EP14825163.0A priority patent/EP3084018B1/en
Priority to BR112016013372-2A priority patent/BR112016013372B1/pt
Priority to EA201691001A priority patent/EA032170B1/ru
Priority to KR1020167016850A priority patent/KR101923287B1/ko
Priority to PCT/FI2014/051004 priority patent/WO2015092132A1/en
Priority to CA2933164A priority patent/CA2933164C/en
Priority to PH12016501077A priority patent/PH12016501077A1/en
Application granted granted Critical
Publication of FI126718B publication Critical patent/FI126718B/fi

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    • 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
    • C22B1/00—Preliminary treatment of ores or scrap
    • C22B1/14—Agglomerating; Briquetting; Binding; Granulating
    • C22B1/24—Binding; Briquetting ; Granulating
    • C22B1/2413—Binding; Briquetting ; Granulating enduration of pellets
    • 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
    • C22B1/00—Preliminary treatment of ores or scrap
    • C22B1/14—Agglomerating; Briquetting; Binding; Granulating
    • C22B1/16—Sintering; Agglomerating
    • C22B1/20—Sintering; Agglomerating in sintering machines with movable grates
    • 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
    • C22B1/00—Preliminary treatment of ores or scrap
    • C22B1/14—Agglomerating; Briquetting; Binding; Granulating
    • C22B1/16—Sintering; Agglomerating
    • C22B1/216—Sintering; Agglomerating in rotary furnaces
    • 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
    • C22B1/00—Preliminary treatment of ores or scrap
    • C22B1/14—Agglomerating; Briquetting; Binding; Granulating
    • C22B1/16—Sintering; Agglomerating
    • C22B1/22—Sintering; Agglomerating in other sintering apparatus
    • 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
    • C22B1/00—Preliminary treatment of ores or scrap
    • C22B1/14—Agglomerating; Briquetting; Binding; Granulating
    • C22B1/24—Binding; Briquetting ; Granulating
    • C22B1/2406—Binding; Briquetting ; Granulating pelletizing
    • 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
    • C22B1/00—Preliminary treatment of ores or scrap
    • C22B1/26—Cooling of roasted, sintered, or agglomerated ores
    • 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
    • C22B23/00—Obtaining nickel or cobalt
    • C22B23/02—Obtaining nickel or cobalt by dry processes
    • C22B23/023—Obtaining nickel or cobalt by dry processes with formation of ferro-nickel or ferro-cobalt
    • 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
    • C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
    • C22B7/02—Working-up flue dust
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/20—Recycling

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Metallurgy (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Organic Chemistry (AREA)
  • Geology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Description

METHOD FOR EXPLOITING DUSTS GENERATED IN A FERRONICKEL PROCESS AND SINTERED PELLETS PRODUCED BY THE METHOD
FIELD OF THE INVENTION
The invention relates to a method for exploiting dusts generated in a ferronickel process. The invention also relates to sintered pellets produced by the method.
BACKGROUND OF THE INVENTION
Nickel-bearing laterite ores, which are used as the mineral raw material in ferronickel process, are friable and dusty in character. The nickel content of laterites is usually between 0.95 and 3 w-%. Therefore, large amounts of ore material need to be handled in the ferronickel process. The slag to metal ratio in smelting is high, generally even over 10. Consequently, the electricity consumption of the ferronickel process is high.
Laterite ores contain high amounts of different types of volatile compounds, in general over 10 w-%. One of the volatile compounds is goethite, the structure of which also contains nickel and hydrated silicates of Mg and (Mg,Al) . Nickel can also be present in the magnesium silicates. Further, laterite ores also contain 10-20 w-% moisture depending on the deposit location.
The ferronickel process starts with crushing and screening of the ore, in which connection finely divided ore dust is produced. Today, this dust is mainly stored in heap, and only a minor part of dust is exploited in the ferronickel process.
Crushed and screened ore is first fed into a drying drum, where part of the ore's moisture content is removed. At this point, a small amount of wet dust is produced. At present the utilization of wet dust is difficult and non-efficient.
From the drying drum the ore is fed to a rotary kiln where final drying and calcination of the ore and pre-reduction of nickel and iron take place. Due to the high crumbling tendency of the ore, lots of finely divided material and dust are produced from the ore at this stage.
The amount of finely divided material removed from the rotary kiln is generally over 20 % of the weight of the ore fed to the rotary kiln. The dusts from the rotary kiln are first separated in a dry cyclone and then in a wet scrubber.
The grain size of both the cyclone dust and the scrubber dust is very small, usually less than 50 μπι. The specific surface of the dust is high due to the high porosity of dust particles.
The amount of dust produced in the ferronick-el process is substantial and the nickel content in the dust is higher than in the original ore because the dusts are mostly calcined. The dusts also contain carbon which originates from coal that has been used as a reducing agent.
Substantial amounts of nickel are bound to these dusts. At present the exploitation of nickel which is bound to these dusts is at a very low level due to several difficulties in the dust handling.
An experimental method utilizing nickelifer-ous dust for sintering feed is presented in Sokolov, Vladyslav M. et al. Options for recycling the fine Ni-containing waste in Ukraine. Global Symposium on Recycling, Waste Treatment and Clean Technology, REWAS 2008, TMS (The Minerals, Metals & Materials society), 2008. A general method for producing ferrochrome from chromite ore is disclosed in WO 2013071956 Al. EP 0643147 A2 discloses a method for manufacturing ferro-nickel from nickel containing laterite. WO 2010092234
Al discloses a method for producing nickel-containing ferroalloy from nickel-bearing intermediate products obtained from leaching nickel ores or nickel concentrates and precipitating the intermediate product from the leach liquor.
PURPOSE OF THE INVENTION
The purpose of the present invention is to eliminate, or at least reduce the problems of the prior art.
More precisely, the purpose of the present invention is to provide a new method for efficient exploitation of nickel-bearing dusts formed in a ferro-nickel process.
SUMMARY
The method according to the present invention is characterized by what is presented in claim 1.
More precisely, the method according to the present invention comprises producing a pelletizing feed from dusts of the ferronickel process and finely divided laterite ore with a particle size under 2 mm, after which the pelletizing feed is pelletized to produce green pellets. The green pellets are sintered in a steel belt sintering furnace to produce sintered pellets. The steel belt sintering furnace comprises one or more zones for drying, heating, sintering and cooling the pellets. Finally, the sintered pellets are fed either to a rotary kiln for pre-reduction of nickel and iron or to a ferronickel smelter together with pre-reduced laterite ore received from a rotary kiln.
According to one embodiment of the present invention, dust from a dry cyclone cleaner and/or dust from a wet scrubber can be introduced into the pelletizing feed.
Also any other kinds of finely divided ore material produced in a ferronickel process can be added to the pelletizing feed. For instance, finely divided laterite ore with a particle size under 2 mm can also be introduced into the pelletizing feed.
According to one embodiment of the present invention, the amount of finely divided laterite ore introduced into the pelletizing feed is 0.1-50%, preferably 1-45%, more preferably 5-40% of the weight of the pelletizing feed.
According to one embodiment of the present invention, bentonite is added to the pelletizing feed in an amount of 0.1-1.5%, preferably 0.5-1.2% of the weight of the pelletizing feed.
According to one embodiment of the present invention, the temperature of the drying gas supplied into the drying zone of the steel belt sintering furnace is 300-420° C and the retention time in the drying zone is 10-12 minutes.
According to one embodiment of the present invention, the temperature of the heating gas supplied into the heating zone of the steel belt sintering furnace is 1100-1200° C and the retention time in the heating zone is 9-11 minutes.
According to one embodiment of the present invention, the temperature of the sintering gas supplied into the sintering zone of the steel belt sintering device is 1200-1250° C and the retention time in the sintering zone is 10-16 minutes.
According to one embodiment of the present invention, the temperature of the material bed in the sintering zone is in the range of 1360-1400° C.
Sintered nickel-containing pellets produced by a method according to the present invention can have nickel content even higher than 4%. The Fe/Ni ratio of the sintered pellets can be lower than 5.0, preferably lower than 4.8. The apparent porosity of the pellets can be 20-35%, preferably 25-30%.
Producing sintered pellets from ore fines and dust generated in a ferronickel process enables more efficient exploitation of waste materials which have earlier been stored in heap.
Sintered pellets can be fed into a rotary kiln for pre-reduction before smelting. Alternatively, sintered pellets can be fed to smelting together with pre-reduced laterite ore received from a rotary kiln.
The new method enables cost-effective utilization of ferronickel dusts which previously have been stored in heap.
DETAILED DESCRIPTION OF THE INVENTION
Laterite ores are very friable and lots of fines and dust are formed during their handling. The amount of nickel in these fines and dusts is remarkable and valuable. The pelletizing and sintering of the mixtures of fine ore and dusts have been clarified in the laboratory and pilot plant scales. Pelletizing and sintering were investigated using a pelletizing disc and a batch reactor (certain type pot furnace) which simulated the real process. The target was to use a steel belt sintering machine for the sintering of the pellets. The temperature profiles and retention times in different zones of steel belt sintering machine were specified to reach sintered pellets suitable for smelting.
In the first set of experiments, only dusts from dry cyclone cleaners and wet scrubbers were used in different proportions as a raw material. In the second set of experiments, dry and wet dusts were mixed with finely divided ore in different proportions. Finely divided ore with a particle size under 2 mm was added to the mixture in an amount up to 50 w-%.
Chemical analysis of the raw materials used in the tests is shown in Table 1. The composition of dry cyclone fines and wet scrubber slime was quite similar. Both the cyclone fines and the scrubber slime contained more nickel and total iron (Fetot) than the laterite ore. The loss of ignition (L.O.I.) and moisture content was lower in the dusts than in the laterite ore. TABLE 1
The ore was crushed and screened to reach a particle size below 2 mm. The grain size of the cyclone dust and scrubber slime was under 50 pm and under 44 pm, respectively. The dusts were received from the gas cleaning of a rotary kiln.
Bentonite was added as a binding agent into the pelletizing feed. The amount of bentonite was 0.1-1.0% of the dry weight of the feed. The amount of coke or other carbon-bearing material added to the pelletizing feed was 0-2% depending of the carbon content of the dusts.
The moisture content of the wet pellets was 19-21% because of the very fine grain size and high porosity of the pellets produced. The compression strength of wet pellets was 1.3-2.0 kg/pellet of 12 mm diameter. After drying the compression strength of green pellets was 4-12 kg/pellet of 12 mm diameter. The green pellets were strong enough for sintering.
Sintering of green pellets was carried out in simulated steel belt sintering equipment. Process parameters were adjusted based on the composition of the sintering feed and the properties of the resulting product.
The compression strength of sintered pellets was in the range of 80-210 kg/pellet in different parts of the product bed. The diameter of the pellets was a little smaller than 12 mm because the pellets were a little bit compressed due to the high porosity of green pellets.
The results of chemical analysis of sintered pellets are shown in Table 2. The nickel content of sintered pellets was over 4 w-%. Iron (Fetot) was mainly present as Fe3+. The Fe/Ni ratio was about 4.6 at its best.
In the steel belt sintering equipment the gas temperature in the drying stage was 300-420° C. The retention time in the drying stage was 10-12 minutes because of the high moisture content of the pellets.
Table 2
The temperature of heating gas supplied into the heating stage was 1100-1200° C. The retention time in the heating stage was 9-11 minutes. Product bed temperatures between 1270 and 1370° C could be reached in the heating stage, depending on the composition of the feed and the amount of combustible coal present.
The temperature of the sintering gas supplied into the sintering stage was 1200-1250° C. The retention time in the sintering stage was 10-16 minutes.
The temperature of the bed was between 1360 and 1400° C during tests where pellets of good quality were produced.
Sintered pellets were highly porous. The apparent porosity of the pellets was in the range of 25-30%, which is why the reducibility of the pellets was good. In pre-reduction tests carried out at 800° C with CO gas and 5% coke in the mixture, the degree of nickel metallization was over 60% and the degree of iron metallization was over 40%.
The abrasion resistance of the pellets was high enough to withstand a further treatment in a rotary kiln followed by smelting, or just smelting together with pre-reduced laterite ore received from a rotary kiln.
It is obvious to a person skilled in the art that with the advancement of technology, the basic idea of the invention may be implemented in various ways. The invention and its embodiments are thus not limited to the examples described above; instead they may vary within the scope of the claims.

Claims (11)

1. Menetelmä ferronikkeliprosessissa syntyvien pölyjen hyödyntämiseksi käsittäen vaiheet, joissa: - tuotetaan pelletointisyöte ferronikkelipro-sessin pölyistä, - pelletoidaan pelletointisyöte raakapellet-tien tuottamiseksi, ja - sintrataan raakapelletit, tunnettu siitä, että lisätään pelletointisyötteeseen hienojakoista lateriittimalmia, jonka partikkelikoko on alle 2 mm, sintrataan raakapelletit teräsnauhasint-rausuunissa sintrattujen pellettien tuottamiseksi, jossa teräsnauhasintrausuuni käsittää yhden tai useamman vyöhykkeen pellettien kuivaamiseksi, kuumentamiseksi, sintraamiseksi ja jäähdyttämiseksi, ja syötetään sintratut pelletit rumpu-uuniin nikkelin ja raudan esipelkistämiseksi, tai ferronikke-lin sulatusuuniin yhdessä rumpu-uunista vastaanotetun esipelkistetyn lateriittimalmin kanssa.
2. Patenttivaatimuksen 1 mukainen menetelmä, jossa lisätään pelletointisyötteeseen kuivasyklonipuh-distimen pölyä ja/tai märkäpesurin lietettä.
3. Patenttivaatimuksen 1 mukainen menetelmä, jossa hienojakoisen lateriittimalmin määrä on 0,1-50 %, edullisesti 1-45 %, edullisemmin 5-40 % pelletoin-tisyötteen painosta.
4. Jonkin patenttivaatimuksista 1-3 mukai nen menetelmä, jossa lisätään pelletointisyötteeseen bentoniittia 0,1-1,5 %, edullisesti 0,5-1,2 % pelle- tointisyötteen painosta.
5. Jonkin patenttivaatimuksista 1-4 mukainen menetelmä, jossa kuivausvyöhykkeeseen syötetyn kuivauskaasun lämpötila on 300-420 °C ja viipymisaika kuivausvyöhykkeessä on 10-12 minuuttia.
6. Jonkin patenttivaatimuksista 1-5 mukainen menetelmä, jossa kuumennusvyöhykkeeseen syötetyn kuumennuskaasun lämpötila on 1100-1200 °C ja viipymis-aika kuumennusvyöhykkeessä on 9-11 minuuttia.
7. Jonkin patenttivaatimuksista 1-6 mukainen menetelmä, jossa sintrausvyöhykkeeseen syötetyn sintrauskaasun lämpötila on 1200-1250 °C ja viipymis-aika sintrausvyöhykkeessä on 10-16 minuuttia.
8. Jonkin patenttivaatimuksista 1-7 mukainen menetelmä, jossa tuotepedin lämpötila sintrausvyöhykkeessä on 1360-1400 °C.
9. Sintratut pelletit, jotka on tuotettu fer-ronikkeliprosessin pölyistä jonkin patenttivaatimuksista 1-8 mukaisella menetelmällä, tunnettu siitä, että pelleteillä on yli 4 %:n nikkelipitoisuus.
10. Patenttivaatimuksen 9 mukaiset sintratut pelletit, joiden Fe/Ni-suhde on alle 5,0, edullisesti alle 4,8.
11. Patenttivaatimuksen 9 tai 10 mukaiset sintratut pelletit, joiden näennäinen huokoisuus on 20-35 %, edullisesti 25-30 %.
FI20136274A 2013-12-17 2013-12-17 Menetelmä ferronikkeliprosessista tulevien pölyjen hyödyntämiseksi ja menetelmällä valmistetut sintratut pelletit FI126718B (fi)

Priority Applications (9)

Application Number Priority Date Filing Date Title
FI20136274A FI126718B (fi) 2013-12-17 2013-12-17 Menetelmä ferronikkeliprosessista tulevien pölyjen hyödyntämiseksi ja menetelmällä valmistetut sintratut pelletit
CN201480070250.0A CN105829552A (zh) 2013-12-17 2014-12-16 利用在镍铁合金工艺中产生的粉尘的方法以及通过该方法生产的烧结球团
EP14825163.0A EP3084018B1 (en) 2013-12-17 2014-12-16 Method for exploiting dusts generated in a ferronickel process
BR112016013372-2A BR112016013372B1 (pt) 2013-12-17 2014-12-16 Método para aproveitamento de pós gerados em um processo ferroníquel e péletes sinterizados produzidos pelo método
EA201691001A EA032170B1 (ru) 2013-12-17 2014-12-16 Способ применения пыли, образованной в процессе получения ферроникеля, и спеченные окатыши, полученные данным способом
KR1020167016850A KR101923287B1 (ko) 2013-12-17 2014-12-16 페로니켈 프로세스에서 발생된 분진을 이용하는 방법 및 상기 방법에 의해 제조된 소결 펠릿
PCT/FI2014/051004 WO2015092132A1 (en) 2013-12-17 2014-12-16 Method for exploiting dusts generated in a ferronickel process and sintered pellets produced by the method
CA2933164A CA2933164C (en) 2013-12-17 2014-12-16 Method for exploiting dusts generated in a ferronickel process and sintered pellets produced by the method
PH12016501077A PH12016501077A1 (en) 2013-12-17 2016-06-06 Method for exploiting dusts generated in a ferronickel process and sintered pellets produced by the method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI20136274A FI126718B (fi) 2013-12-17 2013-12-17 Menetelmä ferronikkeliprosessista tulevien pölyjen hyödyntämiseksi ja menetelmällä valmistetut sintratut pelletit

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FI126718B true FI126718B (fi) 2017-04-28

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EP (1) EP3084018B1 (fi)
KR (1) KR101923287B1 (fi)
CN (1) CN105829552A (fi)
BR (1) BR112016013372B1 (fi)
CA (1) CA2933164C (fi)
EA (1) EA032170B1 (fi)
FI (1) FI126718B (fi)
PH (1) PH12016501077A1 (fi)
WO (1) WO2015092132A1 (fi)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110484713B (zh) * 2019-09-05 2021-02-19 首钢集团有限公司 一种生产球团矿的方法及装置

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA989648A (en) * 1973-02-22 1976-05-25 Herbert A. Hancock Production of porous nickel plates
DE2314637C2 (de) * 1973-03-23 1975-03-06 Hutt Gmbh, 7105 Leingarten Verfahren zur PreBgranulation von in Entstaubungsanlagen abgeschiedenen Industriestauben
CN1306049C (zh) * 2005-09-16 2007-03-21 刘沈杰 不含结晶水的氧化镍矿经高炉冶炼镍铁工艺
JP2007100198A (ja) * 2005-10-07 2007-04-19 Sumitomo Metal Mining Co Ltd ロータリーキルンダストの造粒方法
KR101009034B1 (ko) 2008-09-19 2011-01-17 주식회사 포스코 페로니켈의 제조 방법
FI123241B (fi) * 2011-06-13 2013-01-15 Outokumpu Oy Menetelmä pelkistymisasteen parantamiseksi ferroseosta sulatettaessa

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BR112016013372B1 (pt) 2021-02-23
EP3084018B1 (en) 2019-02-06
PH12016501077A1 (en) 2016-07-11
CA2933164A1 (en) 2015-06-25
CA2933164C (en) 2022-11-29
WO2015092132A1 (en) 2015-06-25
CN105829552A (zh) 2016-08-03
EA032170B1 (ru) 2019-04-30
KR101923287B1 (ko) 2018-11-28
KR20160090358A (ko) 2016-07-29
EP3084018A1 (en) 2016-10-26
EA201691001A1 (ru) 2016-11-30

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