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low-emission salt-glazing

updated fri 11 may 01

 

=?iso-8859-1?Q?Nisse_Holmstr=F6m?= on thu 10 may 01


Okey guy=B4s & gal=B4s;

"In the context of a project for the decrease of fluorine and chlorine =
emissions in the ceramic industry, supported by the Ministry for =
Economics, Traffic, Agriculture and Viniculture Rhineland-Palatinate in =
Mainz (Germany), caustic soda solution (NaOH) was used as an alternative =
to the traditionally used common sodium chloride (NaCl) for ceramic =
salt-glazing in pottery. The procedure was developed up to =
ready-for-production.

In the kiln, a higher pressure than usually develops because of the =
water introduced with the soda solution sprayed into the kiln =
atmosphere; therefore the necessary salt amount needed for traditionally =
salt-glazing decreasees. Instead of hydrochloric acid (HCl), which is =
developed by traditional salt-glazing with NaCl, by applying the new =
method only water forms, which can be released as pollutant-free =
emission to the environment.

An application has been submitted of to patent the new procedure. In =
November 2000, the companies T=F6pferhof M=FChlendyck and FGK (both =
Germany) recieved the Special Innovation Prize for Cooperation between =
Handicraft and Science of the Ministry for Economics, Traffic, =
Agriculture and Viniculture Rhineland-Palatinate in respect to the good =
cooperation regarding the development of the low-emission salt-glaze."

Abstract (in german) from Keramische Zeitschrift 53 (2001) (4)=20

Keep planting more tree=B4s

/nisse/

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