1
Joseph Jan Biermann, Nicolaas Voogt: Method for the removal of mercury from a gas stream. CDEM Holland, Akerman Senterfitt, December 13, 2005: US06974564 (63 worldwide citation)

The present invention relates to a method for the removal of mercury from a gas stream. The method is characterized in that at a temperature above 170° C. the gas stream is contacted with a sorbent that as the active component is comprised of a mixture of substantially silica-alumina compounds and/o ...


2
Nicolaas Voogt, Joseph Jan Peter Biermann: Method of removing a metal from a stream of hot gas. CDEM Holland, Wolf Greenfield & Sacks P C, April 27, 1999: US05897688 (54 worldwide citation)

The present invention relates to a method of removing a metal from a stream of hot gas, wherein a particulate material comprising calcium and aluminum-silicate is contacted in the hot gas to absorb metal present in the hot gas. According to the invention, a meta-kaolin-containing substance is introd ...


3
Joseph Jan Peter Biermann, Robert Bleijerveld, Nicolaas Voogt, Hendrik Jacobus Hulscher: Methods of manufacturing hydraulic materials. CDEM Holland, Wolf Greenfield & Sacks P C, February 9, 1999: US05868829 (10 worldwide citation)

A method of making a hydraulic material which contains metakaolinite and calcium hydroxide from a kaolin-containing compound. The method is performed in a fluidized bed installation having a freeboard under conditions such that the amount of calcium oxide formed is minimized. Preferably, the method ...


4
Biermann Joseph Jan Peter, Bleijerveld Robert, Voogt Nicolaas, Hulscher Hendrik Jacobus: A method of preparing a puzzolanic material form paper residue and a method for the manufacture of cement from said material. Cdem Holland, September 24, 1997: EP0796230-A1 (1 worldwide citation)

The invention relates to a method for the incineration under precisely defined conditions, of kaolin-containing material such as waste paper and other residues stemming from recycling of waste paper for reuse in the paper industry, yielding a material of puzzolanic properties. To this end the incine ...


5
Biermann Joseph Jan Peter, Voogt Nicolaas: Procede dextraction de mercure dun courant gazeux, A method for the removal of mercury from a gas stream. Cdem Holland, Minplus Holding, MOFFAT & CO, August 1, 2002: CA2438867 (1 worldwide citation)

The present invention relates to a method for the removal of mercury from a gas stream. The method is characterized in that at a temperature above 170 ~C the gas stream is contacted with a sorbent that as the active component is comprised of a mixture of substantially silica-alumina compounds and/or ...


6
Biermann Joseph Jan Peter, Bleijerveld Robert, Voogt Nicolaas, Hulscher Hendrik Jacobus: Methode pour preparer un materiau pouzzolanique a partir de residus de papier; method pour lobtention de ciment a partir de ce materiau, A method of preparing a puzzolanic material from paper residue and a method for the manufacture of cement from said material. Cdem Holland, Minplus Holding, BATTISON WILLIAMS DUPUIS, February 29, 1996: CA2198507

The invention relates to a method for the incineration under precisely defined conditions, of kaolin-containing material such as waste paper and other residues stemming from recycling of waste paper for reuse in the paper industry, yielding a material of puzzolanic properties. To this end the incine ...


7
Voogt Nicolaas, Biermann Joseph Jan Peter: Methode de fabrication dun sorbant, sorbant obtenu par ladite methode et methode depuration de courants de gaz chauds, Method of manufacturing a sorbent, a sorbent obtained by such method, and method of cleaning a stream of hot gas. Cdem Holland, Cdem Holland, Battison Williams Dupuis, December 8, 2009: CA2339985

The present invention relates to a method of manufacturing a sorbent suitable for removing a metal from a stream of hot gas out of a calcium and kaolin-containing raw material such as paper or other residues stemming from the production of paper and the recycling of waste paper. The raw material is ...


8
Biermann Joseph Jan Peter, Voogt Nicolaas: A method for the removal of mercury from a gas stream. Cdem Holland, November 5, 2003: EP1357999-A1

The present invention relates to a method for the removal of mercury from a gas stream. The method is characterized in that at a temperature above 170 [deg.]C the gas stream is contacted with a sorbent that as the active component is comprised of a mixture of substantially silica-alumina compounds a ...


9
Biermann Joseph Jan Peter, Voogt Nicolaas: Method of improving material comprising a pozzolanic component. Cdem Holland, December 22, 2004: EP1487753-A2

The invention relates to a method of improving a material comprising a pozzolanic component. According to the invention the material is treated with an aqueous liquid resulting in treated, calcium-depleted material and a calcium-enriched aqueous solution, which are subsequently separated. This provi ...


10
Joseph Jan Peter Biermann, Nicolaas Voogt: Method of improving material comprising a pozzolanic component. Cdem Holland, Akerman Senterfitt, October 13, 2005: US20050223950-A1

The invention relates to a method of improving a material comprising a pozzolanic component. According to the invention the material is treated with an aqueous liquid resulting in treated, calcium-depleted material and a calcium-enriched aqueous solution, which are subsequently separated. This provi ...