Emily Pearlman on tue 10 nov 98
Hi Glaze Gurus:
Just heard from our clay supplier that illminite will no longer be
available. (Not being mined anymore) I've read in Hammer that illminite is
a made up of titanium dioxide and FeO (Black iron oxide).
One of our favoite glaze recipies contains 3% illminite. So my question is
can we use TiO2 and Black Iron oxide instead and how much of each?
Needless to say, Thanks a milliion for any suggestions.
Emily
Emily Pearlman-Pottery (clayfeat@echonyc.com)
http://humanarts.com/emilypearlman
http://www.mlny.org
http://www.wholesalecrafts.com
http://www.craftweb.com/org/pearlman/pearlman.htm
(in NYC)
Edouard Bastarache on wed 11 nov 98
Hello Emily,
QIT-Quebec Iron & Titanium owns an ilmenite mine in northeastern Quebec(
still in operation)
and the ore is shipped to Tracy Quebec where it is processed into iron
pigs,different titanium
dioxide slags, steel billets and steel auto parts.
So it is not true that ilmenite is no longer mined, your material supplier
should look for another
ilmenite source.
Later,
Edouard Bastarache
edouardb@sorel-tracy.qc.ca
http://www.sorel-tracy.qc.ca/~edouardb/
----------
> De : Emily Pearlman
> A : CLAYART@LSV.UKY.EDU
> Objet : Glaze Gurus help needed re illminite
> Date : 10 novembre, 1998 12:08
>
> ----------------------------Original message----------------------------
> Hi Glaze Gurus:
>
> Just heard from our clay supplier that illminite will no longer be
> available. (Not being mined anymore) I've read in Hammer that illminite
is
> a made up of titanium dioxide and FeO (Black iron oxide).
>
> One of our favoite glaze recipies contains 3% illminite. So my question
is
> can we use TiO2 and Black Iron oxide instead and how much of each?
>
> Needless to say, Thanks a milliion for any suggestions.
>
> Emily
>
> Emily Pearlman-Pottery (clayfeat@echonyc.com)
> http://humanarts.com/emilypearlman
> http://www.mlny.org
> http://www.wholesalecrafts.com
> http://www.craftweb.com/org/pearlman/pearlman.htm
> (in NYC)
Tom Wirt on wed 11 nov 98
Just heard from our clay supplier that illminite will no longer be
available. (Not being mined anymore) I've read in Hammer that illminite is
a made up of titanium dioxide and FeO (Black iron oxide).
Emily...
This one went through my supplier about 9 months ago. Without belaboring it, no
Ilmenite and rutile are not going away. They are an integral part of industrial
ceramics and the manufacture of TiO2.
If they ultimately claim they can't get it, post me and I'll relay all the notes
from before.
You can't really duplicate Ilmenite or rutile by combining proper proportions of
TiOz and Iron oxide. Mother nature's gotta do it.
Tom
Edouard Bastarache on fri 13 nov 98
Hello Emily,
QIT-Ilmenite has the following chemical composition:
1-SIO2 10.54
2-AL2O3 6.79
3-FE2O3 32.72
4-TIO2 25.69
5-CAO 2.06
6-MGO 3.76
7-FEO 12.78
The composition of ilmenite may vary from mine to mine,
so the theoritical chemical formula FE2O3.TIO2 is a general
one.
If you wish you may substitute for ilmenite using QIT-Ilmenite
formula as a starting point; if so, the amount of ilmenite should be
multiplied
by the following proposition:
1-Iron oxide .45
2-Rutile .26
3-China clay .19
4-Whiting .03
5-Magnesium carbonate .07
Later,
Edouard Bastarache
edouardb@sorel-tracy.qc.ca
http://www.sorel-tracy.qc.ca/~edouardb/
----------
> De : Edouard Bastarache
> A : CLAYART@LSV.UKY.EDU
> Objet : Re: Glaze Gurus help needed re illminite
> Date : 11 novembre, 1998 09:15
>
> ----------------------------Original message----------------------------
> Hello Emily,
>
> QIT-Quebec Iron & Titanium owns an ilmenite mine in northeastern Quebec(
> still in operation)
> and the ore is shipped to Tracy Quebec where it is processed into iron
> pigs,different titanium
> dioxide slags, steel billets and steel auto parts.
> So it is not true that ilmenite is no longer mined, your material
supplier
> should look for another
> ilmenite source.
>
>
> Later,
>
>
> Edouard Bastarache
> edouardb@sorel-tracy.qc.ca
> http://www.sorel-tracy.qc.ca/~edouardb/
>
> ----------
> > De : Emily Pearlman
> > A : CLAYART@LSV.UKY.EDU
> > Objet : Glaze Gurus help needed re illminite
> > Date : 10 novembre, 1998 12:08
> >
> > ----------------------------Original
message----------------------------
> > Hi Glaze Gurus:
> >
> > Just heard from our clay supplier that illminite will no longer be
> > available. (Not being mined anymore) I've read in Hammer that
illminite
> is
> > a made up of titanium dioxide and FeO (Black iron oxide).
> >
> > One of our favoite glaze recipies contains 3% illminite. So my
question
> is
> > can we use TiO2 and Black Iron oxide instead and how much of each?
> >
> > Needless to say, Thanks a milliion for any suggestions.
> >
> > Emily
> >
> > Emily Pearlman-Pottery (clayfeat@echonyc.com)
> > http://humanarts.com/emilypearlman
> > http://www.mlny.org
> > http://www.wholesalecrafts.com
> > http://www.craftweb.com/org/pearlman/pearlman.htm
> > (in NYC)
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