Product Details

Bentonites' information:

Specifications

nonpoisonous,cohesiveness,expansibility,adsorption,commutation,catalyst,thixotropy,expanding supending,fire-resistant,plasticity

Bentonite

With good capacity of suspension and thixotropy, bentonite for directional through-passing is the same nature with Bentonite for Drilling Mud. It also has a lots of advantages, such as low filtrate volume, good capacity of mud-made, easydispose and etc. At the moment, many Non-dig companies have applied this kind of bentonite in many directional through-passing construction such as West-East natural gas transmission project, which has approved the bentonite for directional through-passing is the basic ideal material for all kinds of projects.

Physical index

itemsType	first grade	second grade	third grade	fourth grade
Green Comp Strength , kpa ≥	100	70	50	30
Dry Comp. Strength, kpa ≥	2.5	2.0	1.5	0.5
MBI,g/100g	32	28	25	22
Mesh(through B.S.S.200 sieve,%≥	85	85	85	85
Moisture %	9~13	9~13	9~13	9~13

Chemical content

Ingredients	%	Sodium Bentonite	Ca-bentonite
SiO2	%	69.32	67.23
Al2O3	%	14.27	15.88
CaO	%	1.99	2.22
MgO	%	2.69	4.01
K2O	%	1.38	0.19
Na2O	%	1.85	0.13
Fe2O3	%	1.84	2.62
FeO	%	0.63	0.03
MnO	%	0.10	0.00
TiO2	%	0.13	0.13
P2O3	%	0.04	0.06
LOI	%	5.67	8.09

usage

Bentonite has special properties, such as swelling power, cohesiveness ,catalysis, thixotropy, suspension property and cation exchange property and so on, so it is widely used in various industrial fields. according to the uses, bentonite is divided into bentonite for mechanical casting use, bentonite for metallurgy pellet, bentonite for drilling mud, bentonite for agricultural building materials, bentonite for civil engineering.

Bentonite for oil drilling

project	Drilling Bentonite	Untreated bentonite	OCMA Bentonite
Viscometer readings 600r/min≥	30		30
Yield Value / plastic viscosity≤	3	1.5	6
Filtration volume / cm 3≤	15.0		16.0
75μm sieve, mass fraction /% ≤	4.0		2.5
Dispersed plastic viscosity / (mPa · S)≥		10
After filtration the amount of scattered / cm 3 ≤		12.5
Water (105 ° C). Mass fraction /% ≤			13.0

Bentonite for foundry

project	Drilling Bentonite	Untreated bentonite	OCMA Bentonite
Viscometer readings 600r/min≥	30		30
Yield Value / plastic viscosity≤	3	1.5	6
Filtration volume / cm 3≤	15.0		16.0
75μm sieve, mass fraction /% ≤	4.0		2.5
Dispersed plastic viscosity / (mPa · S)≥		10
After filtration the amount of scattered / cm 3 ≤		12.5
Water (105 ° C). Mass fraction /% ≤			13.0

Bentonite for metallurgy

project	Sodium Bentonite			Ca-bentonite
project	Grade	2 items	Three Goods	Grade	2 items	Three Goods
Water absorption (2h) /% ≥	400	300	200	200	160	120
Blue absorption capacity/(g/100g) ≥	30	26	22	30	26	22
Swelling Index/(mL/2g) ≥	15			5
Sieving ratio (75μm, dry sieving), mass fraction /%≥	98	95	95	98	95	95
Water (105 ° C). Mass fraction /%	9-13			9-13

Bentonite of JJP grade

Indicators	Moisture absorption rate %	Moisture %	Size mm / tablets	Dry grain compressive strength of kg / particle	Capacity g/cm3	Color
Model	>100	<10	1-4	>3	1.0±0.1	White, red, green

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