MLA Group
 
MLA Group
MLA Group
MLA Group
MLA Group
MLA Group
MLA Group
MLA Group
MLA Group
MLA Group
 
MLA Group
ISO 9001:2000
MLA Group
ISO 9001:2000
 
MLA GROUP OF INDUSTRIES manufacturers, exporters and suppliers of precipitated chemicals and functional fillers, both synthetic and naturally occurring processed minerals including Silica , Precipitated Silica ( ppt silica ), Hydrated Calcium Silicate, Aluminium Silicate, Zinc Stearate, Calcium Stearate, Calcium Sulphate, Zinc-oxide active / transparent, Levigated / Surface treated China Clays, kaolin, china clay, calcined clay, Micronized Calcite, Dolomite, Talc
Levigated / Micronized China Clays
 
 
  Precipitated Silica Levigated / Micronized China clays  
  Aluminium Silicate Micronized Calcite / Dolomite  
  Micronized Talc/Barytes Zinc Stearate / Calcium Stearate  
  Zinc Oxide (Active / Transparent) Calcium Sulphate  
  Hydrated Calcium Silicate Azodicarbonamide (ADC) Blowing Agent  
  Aluminium Stearate PVC stabilizers - Powder form ( UNISTAB - PP series )  
  Glycerol Mono Stearate ( GMS ) PVC stabilizers - Flakes form ( UNISTAB - LPF series)  
      Zinc oxide ( white seal - 99.5 % and pharma grade )  
 
   
TULSI BRAND
     

ABOUT THE PRODUCT
 
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.
 
SERVICES
 

MLA Group

MLA Group

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

3-Star

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

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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.
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  MLA Group of Industries
111/230, Harsh Nagar, Kanpur-208012 (INDIA),
Ph.: 91-512-2555292, 0091-9336116592

E-mail:
sales@mlagroup.com, mktg@mlagroup.com
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