Mining for Non Miners 2
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Transcript of Mining for Non Miners 2
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8/9/2019 Mining for Non Miners 2
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Course on
MINING FOR NON-MINERS
Jeffrey MulyonoArya Citra Mineconsult
Bekerjasama dengan:
DR. Ir. Rudianto Ekawan - ITB
Disampaikan paa kursus
!Auit "omersial an #ukum $isnis %ertam&an'an i Inonesia(
)* Januari +,,
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STUDI KELAYAKAN
PERTAMBANGAN
PART II
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Feasibility Study
A feasibility study is an engineering studybased on test
work and engineering analysis, which presents enough
information to determine whether or not the roje!t should
be ad"an!edto the final engineering and construction stage.
This is a #go$no-go%decision point thereby implying that
sometimes the answer is &'.
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(. ) !on!etual study *a s!oing study+ The preliminary evaluation of a project & based on assumptions and factors.
The accuracy is +/ !" to #$ percent.
There should be a sufficient level of drilling and sampling to define a
resource, simple flow sheet, and mining method. %roduction schedules, and
cost estimates are based on limited data and test work and as a result relymore on eperience and industry standards.
,. ) reliminary easibility *reeasibility+ The intermediate step in the project evaluation.
The accuracy is +/ '" percent range. The need further research during the feasibility stage should be identified.
These include geotechnical studies, waste dumps, and tailings facilities
design, metallurgical testing, and waste characteri(ation studies
The goal is to determine the mining and milling etraction methods and
rates, the product recoveries, environmental and permitting issues, andpreliminary capital and operating cost estimates.
Stages o Feasibility Study
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./ A Feasi&ility Stuy The refinement of the prefeasibility study
The accuracy is +/ )" percent.
*ey components are mine design, production schedule, a detailed process flow
sheet, a detailed plant design, consideration of the environmental issues,
detailed capital and operating costs estimates, and an economic model
The final study provides the basis for the decision on whether further study is
reuired or whether the project is worth pursuing or whether to advance the
project to design and construction. At this point there should be sufficient
information to declare reserves, provided the project has positive economics.
Rate o su!!ess o the Study ew projects survive even the conceptual study.
%refeasibility studies only produce positive results in half of the cases.
At the feasibility level, roughly '$- will fail, and of these most fail as a result of
either overly optimistic assumptions or skipped steps.
Stages o Feasibility Study
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%rinciples of ine conomics0
Economic
decisionsin
mine
planning
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1eotechnical, 2ydrological
& 2ydrogeological
Assessment
3oal 4eneficiationarketing 5tudy
3oal Transportation5tudy
%ort acility 5tudy
%roduction 6evels
ine ngineering
uipment, Ancillary
acilities & an %ower
3apital & 7perating
3ost Assessment
FE)SIBI/IT0 ST1D0
Process of a Feasibility StudyProcess of a Feasibility Study
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)!!ura!y Ranges o "arious Study
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plorationining, arketing &
8nfrastructure 5tudy
nvironmental 8mpact
5tudy
conomic Analysis
B)&2)B/E FE)SIBI/IT0 ST1D0
Framework Process of a Bankable FeasibilityFramework Process of a Bankable Feasibility
StudyStudy
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O012INE A FEASI$2I13 S10D3
4source 5 Inepenent Minin' Consultant6
(. 3eology and Resour!e 4al!ulations.This section primarily identifies the amount of geological reserves and demonstrates the
scientific and technical credibility of the predictions. 8t includes the following9
:i; the basic geology of the site and the area. 'erating 4osts.
This section estimates the operating costs and identifies the procedures used to estimate
operating costs.
((. Finan!ial.
This section analy(es the basic project economics and this assumes a commodity price and likely
contains various =et %resent >alue calculations and ?iscounted 3ash low @eturn 7n 8nvestment
:?3@78; and 8nternal @ate of @eturn analyses.
(,. Summary and Re!ommendations.
This section provides the basic recommendations as to the %roject.
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B)B I : E&D)@1/1)&
). 6atar 4elakang
'. aksud dan Tujuan
!. @uang 6ingkup dan etode 5tudi
#. %elaksana 5tudi
". adwal Baktu 5tudi
B)B II : 2E)D))& 1515
). 6okasi dan 6uas Bilayah *%, **, %*%'4
ksploitasi yang dimohon.
'. *esampaian ?aerah dan 5arana %erhubungan5etempat
!. *eadaan 6ingkungan ?aerah, %enduduk, ata
%encaharian %enduduk, *eadaan lora,
auna, 8klim, 5osial konomi dan lainlain
#. Topografi dan orfologi
B)B III : 3E'/'3I D)& 2E)D))& E&D))&
(. 3eologi
a. 6itologi
b. 5truktur
c. 1eoteknik
,. 2eadaan Endaan
a. 4entuk dan %enyebaran ndapan
b. 5ifat dan *ualitas ndapan
c. 3adangan
i. 3ara %erhitungan 3adangan
ii. *lasifikasi dan umlah 3adangan :insitu,
miniable, marketable, dilengkapi denganperhitungan stripping ratio dan cut off grade;
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B)B IA : RE&4)&) E&)5B)&3)&
). 5istem/etode dan Tata 3ara %enambangan
:dilengkapi bagan alir;
'. Tahapan kegiatan %enambangan :termasuk
penanganan tanah penutup;
!. @encana %roduksi :kuantitas, kualitas, cut off
grade, stripping ratio;
#. %eralatan :jenis, jumlah dan kapasitas;
". adwal @encana %roduksi dan Cmur Tambang
0. @encana %enanganan/%erlakuan 4ahan 1alian
yang 4elum Terpasarkan :kualitas rendah, belum
ekonomis masa sekarang;D. @encana %emanfaatan 4ahan 1alian dan
ineral 8kutan
E. @encana %enanganan/%erlakuan 5isa
3adangan pada %asca Tambang.
B)B A : RE&4)&) E&3'/)@)& D)&
E51R&I)& )T)1 E&414I)&
).5tudi/%ercobaan %engolahan/%emurnian
'.Tatacara %engolahan dan %emurnian
a.Tahapan %engolahan
b.4agan Alir
c.@ecovery %engolahan
!.%eralatan %engolahan :jenis, jumlah & kapasitas;
#.2asil %engolahan dan @encana %emanfaatan
ineral 8kutan
".enis, umlah, *ualitas 2asil %engolahan dan
Tailing
B)B AI : E&3)&321T)& D)& E&I5B1&)&
). Tata 3ara
'. %eralatan :jenis, jumlah, kapasitas;
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B)B AII : /I&321&3)&? 2ESE@)T)& D)&
2ESE/)5)T)& 2ER)
(. /ingkungan *menga!u keada dokumen
)mdal atau 12/ dan 1/+
a. ?ampak kegiatan :tambang, pengolahan dan
sarana penunjang;.
b. %engelolaan lingkungan
i. %engelolaan limbah :tambang, pengolahan dan
sarana penunjang;.
ii. @encana @eklamasi dan %emanfaatan 6ahan
%asca Tambang.
iii. %enanganan Air Asam Tambang
c. %emantauan 6ingkungan,. 2eselamatan dan 2esehatan 2erja
a. 7rganisasi
b. %eralatan
c. 6angkahlangkah pelaksanaan *!
%ertambangan
d. @encana %enggunaan dan %engamanan 4ahan
%eledak dan 4ahan 4erbahaya lainnya.
B)B AIII : /I&321&3)&? 2ESE@)T)& D)&
2ESE/)5)T)& 2ER)
).4agan 7rganisasi
'.umlah dan kriteria Tenaga *erja
!.Tetap dan Tidak Tetap dalam 4entuk Tabel
#.Tingkat 1aji dan Cpah
".5istem *erja :kontrak, borongan dan lainlain;.
B)B IC : E5)S)R)&
(.Bagan 'rganisasi
,.rosekemasaran
a.?alam =egeri
b.6uar =egeri
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B)B C : I&AEST)SI D)& )&)/ISIS 2E/)0)2)&
(. In"estasi
a. odal Tetap
i. %engurusan peri(inan dan eksplorasi
ii. %embebasan 6ahan
iii. *onstruksi atau @ekayasa
iv. %eralatan :penambangan, pengolahan,
pengangkutan dan lainlain;.
b. odal *erja
c. 5umber ?ana
,. )nalisis 2elayakan
a. 4iaya %roduksi :termasuk biaya pengelolaan dan
pemantauan lingkungan *!;b. %endapatan %enjualan
c. F3ash lowG :aliran uang tunai;
d. %erhitungan F?iscounted 3ash low @ate of
@eturnG/G 8nternal @ate of @eturnG ?3@7@;.
e. %erhitungan F4reak ven %ointG :4%;
f. Baktu %engembalian odal
g. Analisa *epekaan dan @esiko
B)B CI : 2ESI51/)&
5emuat se!ara ringkas hal-hal sbb :
6uas wilayah yang dimohon/ditingkatkan ke
tahap ksploitasi3adangan :Fin situG, miniableG, FmarketabelG;@encana %enambangan :tata cara dan sistem;
@encana %engolahan dan pemurnian ataupencucian :kalau ada;.@encana %roduksi pertahun dan umur tambang.@encana pemasaran dan harga jual.8nvestasi yang diperlukan termasuk modal kerja
dan sumber dana.2asil analisis kelayakanumlah tenaga kerja :tetap dan harian atau
buruh;%emantauan dan %engelolaan 6ingkungan%otensi dan rencana perlakuan bahan galian
yang belum dapat dipasarkan dan mineral ikutan
serta bahan galian lain.
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ED'5)& E&01S1&)& /)'R)& ST1DI 2E/)0)2)&?
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/)5IR)&
). %eta situasi wilayah yang akan ditingkatkan ke
tahap ksploitasi dan sekitarnya, skala ) 9
)$.$$$
'. %eta topografi detail daerah tambang dan
sekitarnya, skala minimum ) 9 '.$$$!. %eta penyebaran cadangan dan kualitas,
skala minimum ) 9 '.$$$
#. %eta situasi tambang :ining 6ay 7ut; skala )9
)$.$$$, yang memuat 9
". *ontur topografi
a. %enyebaran bahan galian
b. 4angunanbangunan pentingc. 4atas wilayah eksploitasi
d. alan, %erkampungan. Fstock pileG, lokasi
pencucian dan pengolahan.
e. 6okasi timbunan waste, tailing dan bahan
galian yang belum dapat dipasarkan.
f. 8ndeks peta rencana pertambangan
g. ?an sebagainya
". %eta rencana penambangan dan reklamasi,
inimal skala ) 9 '.$$$$, menggambarkan 9
a. Tahapan dan blokblok yang akan ditambang
b. Tahapan dan blok wilayah yang akan
direklamasi per tahun
c. alan tambang
d. 6okasi timbunan waste, tailing dan mineral
ikutan serta bahan galian yang belum dapat
dipasarkan
0. ?esain tambang dan pengolahan :dalam
bentuk peta, penampang, gambar ! dimensi,
sketsa, bagan alir dan sebagainya.
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Due Diligen!e
A appropriate level of study by knowledgeable professionals to
identify and assess significant factors affecting the future
operation of the subject of mining property
Areas of the study 9
Technical :mining and marketing;, 6egal, Accounting :financial;
%urposeTo provide reasonable assurance of the basis of investment
related to 9 %urchase or sale, inancing, 8nternal Assesment
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Due Diligen!e
5cope of due diligence study, content, etc
5ee paper attached 9 F?ue ?iligence for ineral %roperty
AcuisitionG, ohn T 4oyd 3onsultant
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Terima kasih