Shreeji Fine Chem - China Clay [ Kaolin ]

Products Range
Aluminium Silicate
Aluminium Stearate
Ammonium Chloride
Barytes-Micronised
Calcite-Micronised
Calcium Carbonate
Calcium Chloride
Calcium Hydroxide
Calcium Stearate
Calcium Sulphate
China Clay
Ferric Chloride
Glue Powder
Hydrated Lime
Hydrated Calcium Silicate
Kaolin
Magnesium Carbonate
Magnasium Chloride
Magnasiun Stearate
Magnasium Sulphate
Pigments
Precipitated Silica
Sodium Bi - Sulphite
Sodium Meta - Bi - Sulphite
Sodium Sulphite
Stearic Acid
Talc Powder
Zinc Carbonate
Zinc Chloride
Zinc Dust
Zinc Oxide
Zinc Stearate

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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 Al 2 ,(Si 2 O 5 )(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
	Just-in-time inventory management support by despatch from ready stock.
	Before sales technical feedback and problem solving in collaboration with the customer by our technical service engineers.
	Application development at customer's end supported by the central R&D laboratory of MLA Group.
	After sales services & trouble-shooting by the sales & service engineers.

Tulsi Brand

TYPICAL PHYSIOCHEMICAL PROPERTIES OF LEVIGATED CHINA CLAYS
(Tulsi Brand)

GRADES

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

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

2.5-2.6

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

6.0-7.5

7.5-9.0

4.0-5.0

Moisture

% max

0.4

1.5

2.0

1.5

SiO₂

55-58

53-55

56-58

46-52

50-56

46-52

Al₂ O₂

33-35

35-37

32-33

38-42

32-35

38-42

Fe₂ O₃

<0.1

<0.2

0.05-0.03

Mixed Oxides

% max

2.5

2.8

TiO₂

Traces

Nil

Loss on Ignition

<6.5

13-15

Residue
on 500 mesh

<1.0

<0.5

<2.0

<0.5

Packing

Kgs/bag



TYPICAL PHYSIOCHEMICAL PROPERTIES OF LEVIGATED CHINA CLAYS (10 MICRONS) (Tulsi Brand)
		GRADE
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
Al₂ O₃	%	35-37
Fe₂ O₃	% 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

TYPICAL PHYSIOCHEMICAL PROPERTIES OF CALCINED CHINA CLAY (Tulsi Brand)
		GRADE
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
Al₂ O₂	%	35-37
Fe₂ O₃	% 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

TYPICAL PHYSIOCHEMICAL PROPERTIES OF LEVIGATED CHINA CLAYS (CONFORMING TO I.P.) (Tulsi Brand)
		GRADE
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
Al₂ O₂	%	34-36
Fe₂ O₃	% 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

TYPICAL PHYSIOCHEMICAL PROPERTIES OF CALCINED CHINA CLAYS (Tulsi Brand)
		GRADES
Property	Unit	KT-555	KT-055
Whiteness	%	94-96	90-94
Average Particle Size	microns	4-5	4-5
Surface Area (BET)	m2/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
Al₂ O₃	%	34.6	32.2
Na₂ O	%	1.4	1.2
Cao	%	1.0	1.3
Fe as Fe₂ O₃	%	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

TYPICAL PHYSIOCHEMICAL PROPERTIES OF LEVIGATED CHINA CLAYS (Tulsi Brand)
		GRADES
Property	Unit	Tulsi-555 Special	Tulsi-555
Whiteness	%	94-96	84-88
Average Particle Size	microns	5 -6	6 -7
Surface Area	m2/gm	6-8	6-8
Bulk Density*	gm/cc	0.40-0.45	0.40-0.45
Water Absorption	%	22-26	22-26
pH Value	-	5.5-6.5	5.5-6.5
Moisture	% max	0.40	0.40
SiO₂	%	55-58	55-58
Al₂ O₂	%	33-35	33-35
Fe₂ O₃	% max	0.1	0.3
Mixed Oxides	% max	2.5	2.5
TiO₂	%	Traces	Traces
Loss on Ignition	% max	0.5	0.5
Residuc on 500 mesh	% max	8.0	8.0
Packing	Kgs/bag	25	25