SIST ISO 10086-2:2005

Coal -- Methods for evaluating flocculants for use in coal preparation -- Part 2: Flocculants as filter aids in rotary vacuum filtration systems

ISO 10086-2:2004 specifies a method for the comparative evaluation of the performance of flocculants used as filter aids for rotary vacuum filtration applications on a given slurry.

Charbon -- Méthodes d'évaluation des floculants utilisés dans la préparation des charbons -- Partie 2: Floculants comme aides à la filtration dans des systèmes rotatoires de filtration sous vide

Premog – Metode vrednotenja flokulantov pri pripravi premoga – 2. del: Flokulanti kot dodatek filtrom v vrtečih vakuumskih filtracijskih sistemih

General Information

• Status: Published
• Publication Date: 31-Oct-2005
• ICS: 73.040 - Coals
• Technical Committee: IRUD - Mining
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 01-Nov-2005
• Due Date: 01-Nov-2005
• Completion Date: 01-Nov-2005
• Ref Project: ISO 10086-2:2004 - Coal - Methods for evaluating flocculants for use in coal preparation - Part 2: Flocculants as filter aids in rotary vacuum filtration systems

Overview

ISO 10086-2:2004 - "Coal - Methods for evaluating flocculants for use in coal preparation - Part 2" defines a laboratory method for the comparative evaluation of flocculants as filter aids in rotary vacuum filtration systems. The standard specifies how to prepare flocculant solutions, dose a representative coal slurry, run a bench-scale rotary vacuum filter-leaf test and quantify performance using cake yield, cake moisture and filtrate clarity. It is intended to simulate plant rotary vacuum filter conditions for meaningful comparison of flocculant performance.

Key topics and requirements

• Principle: Performance is assessed by adding flocculant to a slurry aliquot, forming a cake on a filter leaf, and measuring wet and dry cake mass to derive yield and moisture.
• Apparatus: ordinary lab equipment plus vacuum pump/gauge, Buchner flask, filter-leaf assembly, vacuum tubing, motorized stirrers and syringes.
• Materials & sampling: slurry and water collection and sub-sampling follow ISO 10086-1 procedures.
• Flocculant preparation: powder or liquid flocculants prepared per ISO 10086-1.
• Test procedure:
  • Homogenize 500 ml subsample, dose flocculant, record conditioning time.
  • Recommended default times (if plant times unknown): immersion 1 min 10 s, drying 2 min.
  • Measure cake thickness (three points), weigh wet cake, dry at 105 °C to constant mass for dry cake.
  • Evaluate filtrate clarity visually or by turbidity instrument.
• Dosage calculation: method and worked example provided; dosage expressed as g flocculant per kg dry solids (or kg/tonne).
• Repeatability: duplicate tests should agree within ±1.0% cake moisture and ±1 mm cake thickness.
• Reporting: test date, flocculant description, slurry details, cake yield, filtrate clarity, cake moisture, dosage and vacuum parameters, filter cloth, stirring, immersion and drying times. Annexes include a worked example and data recording sheet.

Practical applications and users

ISO 10086-2:2004 is used for:

• Comparing flocculant performance for coal preparation and dewatering trials.
• Selecting filter aid chemistries for rotary vacuum drum and disc filters.
• Optimizing dosage rates to meet cake dryness and filtrate clarity targets.
• Supporting procurement, quality assurance and R&D on flocculants and filtration equipment.

Typical users:

• Coal process engineers and plant operators
• Laboratory technicians and analytical chemists
• Flocculant suppliers and formulators
• Filtration equipment manufacturers
• Process optimization and environmental compliance teams

Related standards

• ISO 10086-1:2000 - Coal - Methods for evaluating flocculants - Part 1: Basic parameters (referenced for sampling, water and flocculant solution preparation, and filtrate clarity evaluation).

Standards Content (Sample)

SLOVENSKI STANDARD
01-november-2005
3UHPRJ±0HWRGHYUHGQRWHQMDIORNXODQWRYSULSULSUDYLSUHPRJD±GHO)ORNXODQWL
NRWGRGDWHNILOWURPYYUWHþLKYDNXXPVNLKILOWUDFLMVNLKVLVWHPLK
Coal -- Methods for evaluating flocculants for use in coal preparation -- Part 2:
Flocculants as filter aids in rotary vacuum filtration systems
Charbon -- Méthodes d'évaluation des floculants utilisés dans la préparation des
charbons -- Partie 2: Floculants comme aides à la filtration dans des systèmes rotatoires
de filtration sous vide
Ta slovenski standard je istoveten z: ISO 10086-2:2004
ICS:
73.040 Premogi Coals
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

INTERNATIONAL ISO
STANDARD 10086-2
First edition
2004-01-15
Coal — Methods for evaluating
flocculants for use in coal preparation —
Part 2:
Flocculants as filter aids in rotary
vacuum filtration systems
Charbon — Méthodes d'évaluation des floculants utilisés dans
la préparation des charbons —
Partie 2: Floculants comme aides à la filtration dans des systèmes
rotatoires de filtration sous vide

Reference number
©
ISO 2004
PDF disclaimer
This PDF file may contain embedded typefaces. In accordance with Adobe's licensing policy, this file may be printed or viewed but
shall not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In
downloading this file, parties accept therein the responsibility of not infringing Adobe's licensing policy. The ISO Central Secretariat
accepts no liability in this area.
Adobe is a trademark of Adobe Systems Incorporated.
Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation
parameters were optimized for printing. Every care has been taken to ensure that the file is suitable for use by ISO member bodies. In
the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below.

©  ISO 2004
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means,
electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or
ISO's member body in the country of the requester.
ISO copyright office
Case postale 56 • CH-1211 Geneva 20
Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail [e-mail]
Web www.iso.org
Published in Switzerland
ii © ISO 2004 – All rights reserved

Contents Page
Foreword. iv
1 Scope. 1
2 Normative references . 1
3 Principle . 1
4 Apparatus. 1
5 Materials. 2
5.1 Slurry. 2
5.2 Water . 2
6 Sampling . 2
7 Preparation of flocculant solutions. 3
8 Test procedure . 3
8.1 Preliminary. 3
8.2 Procedure. 4
8.3 Calculation of flocculant dosage rate . 5
8.4 Filtration test . 6
8.5 Analysis of cake sample. 7
9 Clarity of the filtrate . 7
10 Recording of results . 8
11 Repeatability. 8
12 Test report. 8
Annex A (informative) Worked example. 9
Annex B (informative) Data recording sheet. 11
Bibliography . 12

Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies
(ISO member bodies). The work of preparing International Standards is normally carried out through ISO
technical committees. Each member body interested in a subject for which a technical committee has been
established has the right to be represented on that committee. International organizations, governmental and
non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the
International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft International Standards
adopted by the technical committees are circulated to the member bodies for voting. Publication as an
International Standard requires approval by at least 75 % of the member bodies casting a vote.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. ISO shall not be held responsible for identifying any or all such patent rights.
ISO 10086-2 was prepared by Technical Committee ISO/TC 27, Solid mineral fuels, Subcommittee SC 1,
Coal preparation: Terminology and performance.
ISO 10086 consists of the following parts, under the general title Coal — Methods for evaluating flocculants
for use in coal preparation:
— Part 1: Basic parameters
— Part 2: Flocculants as filter aids in rotary vacuum filtration systems

iv © ISO 2004 – All rights reserved

INTERNATIONAL STANDARD ISO 10086-2:2004(E)

Coal — Methods for evaluating flocculants for use in coal
preparation —
Part 2:
Flocculants as filter aids in rotary vacuum filtration systems
1 Scope
This part of ISO 10086 specifies a method for the comparative evaluation of the performance of flocculants
used as filter aids for rotary vacuum filtration applications on a given slurry.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applies. For undated references, the latest edition of the referenced
document (including any amendments) applies.
ISO 10086-1:2000, Coal — Methods for evaluating flocculants for use in coal preparation — Part 1: Basic
parameters
3 Principle
The performance of different flocculants on a given slurry is determined by measuring the cake yield and
moisture content.
A flocculant solution is added to an aliquot of slurry in a beaker. A filter leaf is then applied to the flocculated
sample and the cake thus produced on the apparatus is weighed wet, dried and reweighed. A measure of the
efficiency of the flocculant is obtained from the cake yield and moisture content.
4 Apparatus
Ordinary laboratory apparatus and the following.
NOTE The apparatus is generally arranged as shown in Figure 1.
4.1 Laboratory vacuum pump or piped vacuum system, capable of producing a vacuum better than that
proposed for the plant equipment.
4.2 Vacuum gauge
4.3 Two-way valves, of at least 2 mm to 3 mm bore, manufactured in glass or plastics.
4.4 Buchner flask, with a minimum volume of 1 L.
4.5 Filter-leaf apparatus, consisting of a drainage plate and filter cloth in an assembly, as shown in
Figure 4.
4.6 Vacuum tubing and glass/plastics tubing
4.7 Stirrers, motorized variable-speed stirrers, capable of speeds up to 1 000 r/min, one for flocculant
preparation and one for sample homogenization.
4.8 Syringes, having capacities of 1 ml, 2 ml, 5 ml, 10 ml and 50 ml.

Key
1 vacuum pump/source 5 two-way valve
2 vacuum gauge 6 filter leaf
3 two-way valve 7 slurry in 800 mL beaker
4 buchner flask 8 vacuum tubing
Figure 1 — Laboratory vacuum filter-leaf apparatus
5 Materials
5.1 Slurry
The slurry for evaluation shall be collected and divided by the method described in ISO 10086-1. The contents
of each test cylinder shall then be poured into an 800 ml beaker for evaluation.
5.2 Water
The water used for the preparation of flocculant solutions shall be collected by the method described in
ISO 10086-1.
6 Sampling
The flocculant samples should be collected according to the recommendations described in ISO 10086-1.
...

INTERNATIONAL ISO
STANDARD 10086-2
First edition
2004-01-15
Coal — Methods for evaluating
flocculants for use in coal preparation —
Part 2:
Flocculants as filter aids in rotary
vacuum filtration systems
Charbon — Méthodes d'évaluation des floculants utilisés dans
la préparation des charbons —
Partie 2: Floculants comme aides à la filtration dans des systèmes
rotatoires de filtration sous vide

Reference number
©
ISO 2004
PDF disclaimer
This PDF file may contain embedded typefaces. In accordance with Adobe's licensing policy, this file may be printed or viewed but
shall not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In
downloading this file, parties accept therein the responsibility of not infringing Adobe's licensing policy. The ISO Central Secretariat
accepts no liability in this area.
Adobe is a trademark of Adobe Systems Incorporated.
Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation
parameters were optimized for printing. Every care has been taken to ensure that the file is suitable for use by ISO member bodies. In
the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below.

©  ISO 2004
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means,
electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or
ISO's member body in the country of the requester.
ISO copyright office
Case postale 56 • CH-1211 Geneva 20
Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail [e-mail]
Web www.iso.org
Published in Switzerland
ii © ISO 2004 – All rights reserved

Contents Page
Foreword. iv
1 Scope. 1
2 Normative references . 1
3 Principle . 1
4 Apparatus. 1
5 Materials. 2
5.1 Slurry. 2
5.2 Water . 2
6 Sampling . 2
7 Preparation of flocculant solutions. 3
8 Test procedure . 3
8.1 Preliminary. 3
8.2 Procedure. 4
8.3 Calculation of flocculant dosage rate . 5
8.4 Filtration test . 6
8.5 Analysis of cake sample. 7
9 Clarity of the filtrate . 7
10 Recording of results . 8
11 Repeatability. 8
12 Test report. 8
Annex A (informative) Worked example. 9
Annex B (informative) Data recording sheet. 11
Bibliography . 12

Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies
(ISO member bodies). The work of preparing International Standards is normally carried out through ISO
technical committees. Each member body interested in a subject for which a technical committee has been
established has the right to be represented on that committee. International organizations, governmental and
non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the
International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft International Standards
adopted by the technical committees are circulated to the member bodies for voting. Publication as an
International Standard requires approval by at least 75 % of the member bodies casting a vote.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. ISO shall not be held responsible for identifying any or all such patent rights.
ISO 10086-2 was prepared by Technical Committee ISO/TC 27, Solid mineral fuels, Subcommittee SC 1,
Coal preparation: Terminology and performance.
ISO 10086 consists of the following parts, under the general title Coal — Methods for evaluating flocculants
for use in coal preparation:
— Part 1: Basic parameters
— Part 2: Flocculants as filter aids in rotary vacuum filtration systems

iv © ISO 2004 – All rights reserved

INTERNATIONAL STANDARD ISO 10086-2:2004(E)

Coal — Methods for evaluating flocculants for use in coal
preparation —
Part 2:
Flocculants as filter aids in rotary vacuum filtration systems
1 Scope
This part of ISO 10086 specifies a method for the comparative evaluation of the performance of flocculants
used as filter aids for rotary vacuum filtration applications on a given slurry.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applies. For undated references, the latest edition of the referenced
document (including any amendments) applies.
ISO 10086-1:2000, Coal — Methods for evaluating flocculants for use in coal preparation — Part 1: Basic
parameters
3 Principle
The performance of different flocculants on a given slurry is determined by measuring the cake yield and
moisture content.
A flocculant solution is added to an aliquot of slurry in a beaker. A filter leaf is then applied to the flocculated
sample and the cake thus produced on the apparatus is weighed wet, dried and reweighed. A measure of the
efficiency of the flocculant is obtained from the cake yield and moisture content.
4 Apparatus
Ordinary laboratory apparatus and the following.
NOTE The apparatus is generally arranged as shown in Figure 1.
4.1 Laboratory vacuum pump or piped vacuum system, capable of producing a vacuum better than that
proposed for the plant equipment.
4.2 Vacuum gauge
4.3 Two-way valves, of at least 2 mm to 3 mm bore, manufactured in glass or plastics.
4.4 Buchner flask, with a minimum volume of 1 L.
4.5 Filter-leaf apparatus, consisting of a drainage plate and filter cloth in an assembly, as shown in
Figure 4.
4.6 Vacuum tubing and glass/plastics tubing
4.7 Stirrers, motorized variable-speed stirrers, capable of speeds up to 1 000 r/min, one for flocculant
preparation and one for sample homogenization.
4.8 Syringes, having capacities of 1 ml, 2 ml, 5 ml, 10 ml and 50 ml.

Key
1 vacuum pump/source 5 two-way valve
2 vacuum gauge 6 filter leaf
3 two-way valve 7 slurry in 800 mL beaker
4 buchner flask 8 vacuum tubing
Figure 1 — Laboratory vacuum filter-leaf apparatus
5 Materials
5.1 Slurry
The slurry for evaluation shall be collected and divided by the method described in ISO 10086-1. The contents
of each test cylinder shall then be poured into an 800 ml beaker for evaluation.
5.2 Water
The water used for the preparation of flocculant solutions shall be collected by the method described in
ISO 10086-1.
6 Sampling
The flocculant samples should be collected according to the recommendations described in ISO 10086-1.
2 © ISO 2004 – All rights reserved

7 Preparation of flocculant solutions
The flocculant, both powder and liquid grades, shall be prepared in accordance with the methods specified in
ISO 10086-1.
8 Test procedure
8.1 Preliminary
The test procedure shall simulate the operating conditions of a rotary vacuum filter on a plant (see Figures 2
and 3). Where the slurry is taken from a plant usin
...