Global Patent Index - EP 1089944 A1

EP 1089944 A1 2001-04-11 - METHOD FOR MELTING ROCK MATERIAL FOR MINERAL FIBRE PRODUCTION

Title (en)

METHOD FOR MELTING ROCK MATERIAL FOR MINERAL FIBRE PRODUCTION

Title (de)

VERFAHREN ZUM SCHMELZEN VON GESTEINSMATERIAL ZUR HERSTELLUNG VON MINERALISCHEN FASERN

Title (fr)

PROCEDE DE FUSION DE MATERIAUX ROCHEUX POUR LA PRODUCTION DE FIBRES MINERALES

Publication

EP 1089944 A1 (EN)

Application

EP 99913327 A

Priority

  • FI 9900249 W
  • FI 980710 A

Abstract (en)

[origin: WO9950196A1] The invention is related to a method of melting rock material for the manufacture of mineral fiber. In the method, the crushed rock material and the amount of fuel, proportionated according to the quantity of the rock material, together with a possible introduction of additive ingredients, are introduced into a shaft furnace, and combustion air possibly complemented with auxiliary fuel is introduced into the bottom part of the furnace in order to create a melting zone. The melted rock material is discharged from the furnace bottom. According to the method, at least a portion of said additive ingredients is introduced along with a carrier medium directly into the melting zone or its immediate vicinity.

IPC 1-7 (main, further and additional classification)

C03B 5/12

IPC 8 full level (invention and additional information)

C03B 3/00 (2006.01); C03B 5/12 (2006.01)

CPC (invention and additional information)

C03B 3/00 (2013.01); C03B 5/12 (2013.01)

Citation (search report)

See references of WO 9950196A1

Designated contracting state (EPC)

AT BE CH DE DK ES FI FR GB IE IT LI NL PT SE

EPO simple patent family

WO 9950196 A1 19991007; AU 3148999 A 19991018; EP 1089944 A1 20010411; FI 980710 A0 19980327; FI 980710 A 19990928

INPADOC legal status


2016-03-02 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20151001

2007-05-30 [RAP1] TRANSFER OF RIGHTS OF AN EP PUBLISHED APPLICATION

- Owner name: PAROC OY AB

2003-03-26 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20030205

2001-04-11 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20001027

2001-04-11 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT BE CH DE DK ES FI FR GB IE IT LI NL PT SE

2001-04-11 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO

- Free text: LT PAYMENT 20001027;LV PAYMENT 20001027;SI PAYMENT 20001027