石家庄永恒建材有限公司

Contact

Company:Shijiazhuang Eternal Building Materials Limited Company
ADD:2604-1 Aerkadiya, PingAn Street and HePing Road, Shijiazhuang, Hebei, China PT:050000
Tell:0086-311-69032602
Fax:0086-311-85119401
Email:yonghengmaterial@vermiculite-china.com
wisdombai@vermiculite-china.com
yonghengstuff@vermiculite-china.com
yonghengmaterials@vermiculite-china.com
vermiculite-china@vermiculite-china.com

BentoniteWith good capacity of suspension and thixotropy, It also has a lots of other advantages, such as low filtrate volume, good capacity of mud made, easy dispose 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.

          

Technology index

Physical index

items\Type 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 unit 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
Ti02 % 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
75渭m sieve, mass fraction /% < 4.0 2.5
Dispersed plastic viscosity / (mPa 鈥 S)> 10
After filtration the amount of scattered / cm 3 < 12.5
Water (105 掳 C). Mass fraction /% < 13.0

Bentonite for foundry

project Super Grade Second grade Third grade Fourth grade
Wet compressive strength /kPa> 100 70 50 30
Hot wet tensile strength /kPa> 2.5 2.0 1.5 0.5
Blue absorption capacit y/(g/100g) > 32 28 25 22
Sieving ratio (75渭m, dry sieving), mass fraction /%> 85
Water (105 掳 C). Mass fraction /% 9-13
Note: The casting of Ca-bentonite pull-degree heat and moisture not do requests

Bentonite for metallurgy

project Sodium Bentonite Ca-bentonite
SuperGrade Second grade Third grade First Grade Second grade Third grade
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 (75渭m, dry sieving), mass fraction /%> 98 95 95 98 95 95
Water (105 掳 C). Mass fraction /% 9-13 9-13

Bentonite of JJP grade

Indicators Moisture absorption rate% Moisture% Size mm / tablets Dry grain compressive strength ofkg / particle Capacity g/Cm3 Color
Model >100 <10 1-4 >3 1.0卤0.1 White, red, green