RCF BENTONITE CORAL

Hydrous Aluminium Silicate (H2OAI2O34SiO2nII2O)

General Description

RCF Bentonite is an activated Sodium Bentonite, which finds application as a general high-performance binder. Careful mining at our koppies deposit ensures mineralogical purity and consistently high cation exchange capacity.

Chemical Analysis

SiO2 ……………………57.66%

AI2O3 ………………….20.15%

LOI ………………………..7-12%

LOI (11000C)…………7-12%

H2O (1050C)…………7-11%

Fe2O3 ……………………..3-5%

CaO …………………………1-6%

MgO ………………………..1-3%

K2O …………Less than 0,3%

TiO2 …………..0.15%-0.25% 

MnO …………Less than 0,1%

P2O2 ………….0.07%-0.08%

SO2 ………………………..0.01%

typical Physical Properties

Mineralogy:                                                      Montmorillonite >85%

                                                                                (Typically 90 to 95%)

                                                                                Quartz, Mica, Kaolinite<15%

Cation exchange capacity:                      >80 meq/100g (H2SO4 method)

pH:                                                                          10-10.5

Swelling Volume:                                             22-26 (ml/2g)

Viscosity:                                                              25-32 (immediate)

(Bariod funnel, 5% suspension):              28-45 (10 minutes)

Grading Retained:                                            <5% on 150 micron

Moisture:                                                                6-12%

USEs

Foundry Sands

Civil Engineering

Pelletizing

Stockfeed

Ceramics

General bonding agent

 

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Disclaimer

This technical information is submitted on the basis of our own research and the research of others, and we believe it is accurate. However, no guarantee of its accuracy is made neither can we cover every possible application of our products nor can we anticipate every variation encountered in manufacturing equipment and methods. For this reason our products are sold without warranty, express or implied, and also on the condition those purchasers conduct their own tests to determine the suitability of such products for their particular purposes. Statements concerning the possible use of our products are not intended as recommendations to use our products in the infringement of any patent.