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| ISO
9001:2000 |
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| ISO
9001:2000 |
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China Clay, which
falls under the Kaolinite group of clays is formed by weathering or
hydrothermal alteration of felspathic rocks. It has the general formula
Al2,(Si2O5)(OH)4. It is
a hydrated alumino-silicate having sheet structure. Free Silica (grit)
is the most undesirable impurity and is removed during processing
by levigation, sedimentation or air-separation.
| |
| DEPOSITS |
|
| High
grade china clay deposits are present in West
Bengal, Orissa, Rajasthan, M.P. & Gujarat.
First we collect the samples from various
mines which is analysed for composition and
physical and chemical properties and its suitability
for various applications is then studied.
Moreover, sustained availability of the material
with no variation from mines is given utmost
importance to ensure consistency in final
product. |
| |
|
| PROCESSING |
| |
| The
raw china clay is subject to a refining process
including spiral classification, hydrocycloning,
deflocculation, bleaching and finally drying, micronizing,
air-classification and surface treatment. Our processing
ensures consistent composition, control of top-cut
and average particle size and freedom from free
silica. |
| |
| Our
quality assurance system extends from
mining to micronizing to ensure near-Zero-defect
products :- |
| |
|
| MINING
|
- Manual
sorting to recover white lumps.
- On
site chemical analysis before despatch
to our factories.
|
| MICRONIZING
|
- Test
for physical properties like Bulk
density, Oil absorption, Whiteness
etc.
- Particle
- size distribution analysis.
|
| SURFACE
TREATMENT |
- Testing
of hydrophobicity, oil absorption
and uniformity of coating.
|
| QUALITY
TEST CERTIFICATION |
- Quality
Test Certificate is provided to
customers, certifying values within
specifications.
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|
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| SERVICES |
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|
FRITSCH
ANALYSETTE
(for particle size distribution
analysis)
|
SEM
& XRD MACHINE
(for observation of particle
morphology and elemental composition)
|
|
| |
| 1.
|
Just-in-time
inventory management support by
despatch from ready stock. |
| 2.
|
Before
sales technical feedback and problem
solving in collaboration with
the customer by our technical
service engineers. |
| 3.
|
Application
development at customer's end
supported by the central R&D laboratory
of MLA Group. |
| 4.
|
After
sales services & trouble-shooting
by the sales & service engineers.
|
|
| |
| GRADES |
| |
This
grade has a whiteness unmatched by any
other clay available worldwide. It has
low bulk-density, plasticity & near
zero grit content. It has very high
wettability, dispersibility in non-acqueous
solvents. Some of this application are
in :- |
| PAINTS
|
Due
to its whiteness it is used to
extend and partially replace titanium-dioxide.
The low bulk density facilitates
lower concentration per volume.
|
| RUBBER
|
Moulded
parts, lining, flaps, as anti-sticking
agent in thread rubber. |
| PAPER
|
As
a body filler and for coating.
|
|
CALCIUM
CARBONATE SUBSTITUTE
|
Due
to whiteness, fineness and low
B.D. it can replace ppt. CaCO3
in many applications e.g. Hawai
Footwear Straps. |
|
INSECTICIDES
|
As
a filler in various technical
formulations. |
|
| |
This
grade is remarkable for its purity,
very high fineness, whiteness and easy
dispersibility. It conforms to I.P.
standards for Kaolin due to chemical
purification and freedom from heavy
metallic impurities. Besides the applications
mentioned for TULSI-052 it can be used
as a filler/diluent in Pharmaceuticals,
Animal Feed, Food Products, Marine Food
Preservation & Cosmetics. |
| |
This
grade is reasonably white and free from
impurities and can be used as an economical
substitute of TULSI-052 in various cost
sensitive applications e.g. putties
& primers. |
| |
This
grade is hard china clay having semi-reinforcing
properties and high plasticity due to
its very small average particle size.
It is easily wettable & dispersible
in acqueous solutions and has anti setting
characterstics. It is an excellent filler
for :- |
| PAINTS
|
Water
based and emulsions. |
| RUBBER
|
Checks
retardation due to basic pH .
|
|
| |
This
clay has been specially processed to
a very fine particle size and surface
characteristics by modification of its
basic structure. It has a very low BD
and high oil absorption, unmatched by
any mineral filler. It is highly suitable
for :- |
| RUBBER
|
As
a reinforcing agent - replaces
ppt. silica partially e.g. EVA
Footwear sheets. |
| PAINTS
|
For
gloss reduction in matt-finishes,
control of consistency (rheology)
besides acting as a low bulking
filler. |
| INSECTICIDES
|
As
a superior substitute for mineral
fillers. Serves dual purpose as
a better carrying agent and provides
free flow properties. Due to excellent
dispersibility especially suited
for WDPs. |
|
| |
|
PHYSIOCHEMICAL
PROPERTIES OF LEVIGATED CHINA
CLAYS
|
| Property |
Unit
|
TULSI-052
|
TULSI-053
|
MICRO-5-SW
|
MICRO-2-FW
|
MICRO-2-LW
|
MICRO-4-FW
|
| Whiteness |
%
|
92-96
|
93-96
|
90-94
|
88-90
|
86-90
|
86-90
|
| Average
Particle Size |
microns
|
5-6
|
4-5
|
6-8
|
1.5-3.5
|
1.2-3.2
|
1.5-3.5
|
| Surface
Area |
sq.m/cc
|
8-10
|
9-11
|
6-10
|
10-14
|
12-18
|
10-14
|
| Sp.
Gravity |
-
|
2.7-2.8
|
2.7-2.8
|
2.7-2.8
|
2.5-2.6
|
2.3-2.4
|
2.5-2.6
|
| Bulk
Density* |
gm/cc
|
0.38-0.45
|
0.36-0.44
|
0.40-0.48
|
0.32-0.35
|
0.28-0.32
|
0.34-0.38
|
| Water
Absorption |
%
|
38-44
|
38-46
|
34-42
|
42-48
|
48-55
|
40-46
|
| pH
Value |
-
|
5.5-6.5
|
5.5-6.5
|
6.0-7.5
|
7.5-9.0
|
7.5-9.0
|
4.0-5.0
|
| Moisture |
%
max
|
0.4
|
0.4
|
0.4
|
1.5
|
2.0
|
1.5
|
| SiO2 |
%
|
55-58
|
53-55
|
56-58
|
46-52
|
50-56
|
46-52
|
| Al2O2 |
%
|
33-35
|
35-37
|
32-33
|
38-42
|
32-35
|
38-42
|
| Fe2O3 |
%
|
<0.1
|
<0.1
|
<0.2
|
0.05-0.03
|
0.05-0.03
|
0.05-0.03
|
| Mixed
Oxides |
%
max
|
2.5
|
2.5
|
2.5
|
2.8
|
2.8
|
2.8
|
| TiO2 |
%
|
Traces
|
Traces
|
Traces
|
Nil
|
Nil
|
Nil
|
| Loss
on Ignition |
%
|
<6.5
|
<6.5
|
<6.5
|
13-15
|
13-15
|
13-15
|
| Residue
on 500 mesh |
% |
<1.0 |
<0.5 |
<2.0 |
<0.5 |
<0.5 |
<0.5 |
| Packing |
Kgs/bag
|
25
|
25
|
25
|
20
|
20
|
20
|
|
| Download Specifications |
| Top |
| PHYSIOCHEMICAL
PROPERTIES OF LEVIGATED CHINA
CLAYS (GRIT FREE) |
| Property |
Unit
|
KT-555
|
KT-055
|
| Whiteness |
%
|
94-96
|
90-94
|
| Average
Particle Size |
microns
|
4-5
|
4-5
|
| Surface
Area (BET) |
sq.
m/gm
|
6-8
|
6-8
|
| Sp.
Gravity |
-
|
2.7-2.8
|
2.7-2.8
|
| Bulk
Density* |
gm/cc
|
0.38-0.45
|
0.38-0.45
|
| Water
Absorption |
%
|
38-45
|
38-45
|
| pH
Value |
-
|
5.5-6.5
|
5.5-6.5
|
| Moisture |
%
max
|
0.5
|
0.5
|
| SiO2 |
%
|
56.8
|
58.6
|
| Al2O3 |
%
|
34.6
|
32.2
|
| Na2O |
%
|
1.4
|
1.2
|
| Cao |
% |
1.0 |
1.3 |
| Fe
as Fe2O3 |
%
|
0.10
|
0.14
|
| Loss
on Ignition |
%
max
|
6.5
|
6.5
|
| TiO2 |
%
|
Traces
|
Traces
|
| Residuc
on 500 mesh |
%
max |
0.5 |
0.5 |
| Packing |
Kgs/bag
|
25
|
25
|
|
| Download Specifications |
| |
| PHYSIOCHEMICAL
PROPERTIES OF LEVIGATED
CHINA CLAYS(CALCINED) |
| Property |
Unit
|
Tulsi-555
|
| Whiteness |
%
|
92-96
|
| Average
Particle Size |
microns
|
3-4
|
| Surface
Area |
sq.
m/gm
|
10-12
|
| Sp.
Gravity |
-
|
2.7-2.8
|
| Bulk
Density* |
gm/cc
|
0.32-0.36
|
| Water
Absorption |
%
|
38-45
|
| pH
Value |
-
|
5.5-6.5
|
| Moisture |
%
max
|
0.4
|
| SiO2 |
%
|
53-55
|
| Al2O2 |
%
|
35-37
|
| Fe2O3 |
%
max |
0.1 |
| Mixed
Oxides |
%
max |
2.5 |
| TiO2 |
%
|
Traces
|
| Loss
on Ignition |
%
max
|
6.5
|
| Residuc
on 500 mesh |
%
max |
0.2 |
| Packing |
Kgs/bag
|
25
|
|
| Download Specifications |
| Top |
| PHYSIOCHEMICAL
PROPERTIES OF LEVIGATED
CHINA CLAYS (CONFORMING
TO I.P.) |
| Property |
Unit
|
Lite
KT Spl.
|
| Whiteness |
%
|
91±1
|
| Average
Particle Size |
microns
|
1.5-3.0
|
| Surface
Area |
sq.
m/gm
|
10-12
|
| Sp.
Gravity |
-
|
2.56
|
| Bulk
Density* |
gm/cc
|
0.32-0.35
|
| Oil
Absorption |
%
|
38-44
|
| pH
Value |
-
|
6.5-7.0
|
| Moisture |
%
max
|
2.0
|
| SiO2 |
%
|
48-52
|
| Al2O2 |
%
|
34-36
|
| Fe2O3 |
%
max |
0.2-0.3 |
| Mixed
Oxides |
%
max |
2.5 |
| Loss
on Ignition |
%
max
|
14.0
|
| Residuc
on 500 mesh |
%
max |
0.5 |
| Packing |
Kgs/bag
|
20
|
|
| Download Specifications |
| |
| PHYSIOCHEMICAL
PROPERTIES OF LEVIGATED
CHINA CLAYS (10 MICRONS) |
| Property |
Unit
|
Tulsi-059
|
| Whiteness |
-
|
90-95
|
| Average
Particle Size |
microns
|
4-5
|
| Surface
Area |
sq.
m/gm
|
14-18
|
| Sp.
Gravity |
-
|
2.7-2.8
|
| Bulk
Density* |
gm/cc
|
0.38-0.45
|
| Water
Absorption |
%
|
38-42
|
| pH
Value |
-
|
5.5-6.5
|
| Moisture |
%
max
|
0.2
|
| Water
Soluble
|
% |
Nil |
| SiO2 |
%
|
53-55
|
| Al2O3 |
%
|
35-37
|
| Fe2O3 |
%
max |
0.05 |
| Mixed
Oxides |
%
max |
2.2 |
| Loss
on Ignition |
%
max
|
1.5
|
| Residuc
on 500 mesh |
%
max |
0.5 |
| Packing |
Kgs/bag
|
25
|
|
| *At
the time of packing. |
| Download Specifications |
| Top |
|
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MLA
Group of Industries
111/230, Harsh Nagar, Kanpur-208012 (INDIA),
Ph.: (H.O.) +91-512-2291408/09/10 (EPABX), (Works) +91-512-2691154/55/56
Fax:
+91-512-2290057, 2691153
E-mail: sales@mlagroup.com,
mktg@mlagroup.com |
|
