Patents by Inventor Hendrikus Wilhelmus Bakkenes
Hendrikus Wilhelmus Bakkenes has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 9982193Abstract: Process and dosing station (1) for the preparation of a solution of a non-caking agent, wherein a concentrate of the non-caking agent is circulated in a loop (6) and wherein the concentrate is subsequently diluted by water to obtain the solution. A flow of the concentrate can be drawn from the circulation loop (6) and mixed with a flow of water. The obtained solution can subsequently be fed into a second recirculation loop (12). A flow of solution can be drawn off from the second recirculation loop for being dosed into an amount of salt.Type: GrantFiled: March 27, 2013Date of Patent: May 29, 2018Assignee: AKZO NOBEL CHEMICALS INTERNATIONAL B.V.Inventors: Hendrikus Wilhelmus Bakkenes, Willem Ferdinand Heezen
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Patent number: 9981285Abstract: Device (1) and method for dosing an aqueous solution (2) of an additive, e.g., a non-caking agent, into an amount of a particulate material, such as a salt. The device comprises a conveyor (4) for transporting the particulate material and a dispenser (5) arranged above the conveyor. The dispenser is connected to a supply for the aqueous solution. The dispenser comprises a pouring outlet (10) extending over at least a part of the width of the conveyor (4). The additive solution is poured with a controlled flow velocity over at least a part of the width of the conveyor (4) transporting the particulate material.Type: GrantFiled: December 3, 2012Date of Patent: May 29, 2018Assignee: AKZO NOBEL CHEMICALS INTERNATIONAL B.V.Inventors: Hendrikus Wilhelmus Bakkenes, Theodorus Johannes Maria Van Lotringen
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Patent number: 9745203Abstract: The present invention relates to a sodium chloride composition comprising an iron complex of tartaric acid wherein between 55 and 90% by weight of the tartaric acid is meso-tartaric acid. The present invention furthermore relates to a process to prepare such a sodium chloride composition and to the use of such a sodium chloride composition.Type: GrantFiled: October 27, 2014Date of Patent: August 29, 2017Assignee: Akzo Nobel Chemicals International B.V.Inventors: Hendrikus Wilhelmus Bakkenes, Roberto Aloysius Gerardus Maria Bergevoet, Johannes Albertus Maria Meijer, Maria Steensma
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Publication number: 20150114841Abstract: The present invention relates to a sodium chloride composition comprising an iron complex of tartaric acid wherein between 55 and 90% by weight of the tartaric acid is meso-tartaric acid. The present invention furthermore relates to a process to prepare such a sodium chloride composition and to the use of such a sodium chloride composition.Type: ApplicationFiled: October 27, 2014Publication date: April 30, 2015Inventors: Hendrikus Wilhelmus BAKKENES, Roberto Aloysius Gerardus Maria BERGEVOET, Johannes Albertus Maria MEIJER, Maria STEENSMA
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Publication number: 20150097144Abstract: Process and dosing station (1) for the preparation of a solution of a non-caking agent, wherein a concentrate of the non-caking agent is circulated in a loop (6) and wherein the concentrate is subsequently diluted by water to obtain the solution. A flow of the concentrate can be drawn from the circulation loop (6) and mixed with a flow of water. The obtained solution can subsequently be fed into a second recirculation loop (12). A flow of solution can be drawn off from the second recirculation loop for being dosed into an amount of salt.Type: ApplicationFiled: March 27, 2013Publication date: April 9, 2015Inventors: Hendrikus Wilhelmus Bakkenes, Willem Ferdinand Heezen
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Patent number: 8911796Abstract: The present invention relates to a sodium chloride composition comprising an iron complex of tartaric acid wherein between 55 and 90% by weight of the tartaric acid is meso-tartaric acid. The present invention furthermore relates to a process to prepare such a sodium chloride composition and to the use of such a sodium chloride composition.Type: GrantFiled: May 27, 2010Date of Patent: December 16, 2014Assignee: Akzo Nobel Chemicals International B.V.Inventors: Hendrikus Wilhelmus Bakkenes, Roberto Aloysius Gerardus Maria Bergevoet, Johannes Albertus Maria Meijer, Maria Steensma
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Patent number: 8888867Abstract: The present invention pertains to a process for producing sodium chloride comprising the steps of: (i) preparing a brine having a sodium chloride concentration which is higher than the sodium chloride concentration of the eutectic point but lower than the sodium chloride concentration of a saturated brine by dissolving a sodium chloride source in water; (ii) cooling the resulting brine by indirect cooling in a self-cleaning fluidized bed heat exchanger/crystallizer to a temperature lower than 0° C. but higher than the eutectic temperature of the resulting brine, thereby forming a slurry comprising sodium chloride dihydrate and a mother liquor; (iii) feeding the sodium chloride dihydrate to a recrystallizer to form sodium chloride and a mother liquor, and (iv) recycling at least part of the mother liquor obtained in step (ii) and/or step (iii) to step (i).Type: GrantFiled: October 29, 2009Date of Patent: November 18, 2014Assignee: Akzo Nobel N.V.Inventors: Hendrikus Wilhelmus Bakkenes, Johannes Albertus Maria Meijer, Allert Schokker, Maria Steensma
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Publication number: 20140308442Abstract: Device (1) and method for dosing an aqueous solution (2) of an additive, e.g., a non-caking agent, into an amount of a particulate material, such as a salt. The device comprises a conveyor (4) for transporting the particulate material and a dispenser (5) arranged above the conveyor. The dispenser is connected to a supply for the aqueous solution. The dispenser comprises a pouring outlet (10) extending over at least a part of the width of the conveyor (4). The additive solution is poured with a controlled flow velocity over at least a part of the width of the conveyor (4) transporting the particulate material.Type: ApplicationFiled: December 3, 2012Publication date: October 16, 2014Applicant: AKZO NOBEL CHEMICALS INTERNATIONAL B.V.Inventors: Hendrikus Wilhelmus Bakkenes, Theodorus Johannes Maria Van Lotringen
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Patent number: 8771380Abstract: The present invention pertains to a process for producing sodium chloride comprising the steps of (i) preparing a brine comprising at least 150 g/l of sodium chloride by dissolving a sodium chloride source in water, (ii) subjecting the resulting brine to a eutectic freeze crystallization step by indirect cooling of said brine, resulting in the formation of ice, sodium chloride dihydrate, and a mother liquor, (iii) separating the sodium chloride dihydrate formed in step (ii) from the ice and optionally mother liquor at the eutectic temperature, such that a sodium chloride dihydrate-rich stream is formed, and (iv) feeding said sodium chloride dihydrate-rich stream to a recrystallizer to form sodium chloride and a mother liquor.Type: GrantFiled: May 22, 2009Date of Patent: July 8, 2014Assignee: Akzo Nobel N.V.Inventors: Hendrikus Wilhelmus Bakkenes, Johannes Albertus Maria Meijer, Allert Schokker
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Patent number: 8759574Abstract: The present invention relates to a process for the preparation of a composition comprising tartaric acid wherein between 55 and 90% by weight of the tartaric acid is meso-tartaric acid, comprising the steps of (i) preparing an aqueous mixture comprising between 35 and 65% by weight of a di-alkali metal salt of L-tartaric acid, a di-alkali metal salt of D-tartaric acid, a mixture of di-alkali metal salts of L-tartaric acid, D-tartaric acid, and optionally meso-tartaric acid, and between 2 and 15% by weight of an alkali metal or alkaline metal hydroxide, and (ii) stirring and heating the aqueous mixture to a temperature of between 100° C. and its boiling point until between 55 and 90% by weight of tartaric acid has been converted to meso-tartaric acid.Type: GrantFiled: May 27, 2010Date of Patent: June 24, 2014Assignee: Akzo Nobel Chemicals International B.V.Inventors: Hendrikus Wilhelmus Bakkenes, Roberto Aloysius Gerardus Maria Bergevoet, Johannes Albertus Maria Meijer, Maria Steensma
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Publication number: 20140072718Abstract: The present invention relates to a potassium chloride composition comprising an iron complex of tartaric acid, characterized in that at least 5% by weight of the tartaric acid is mesotartaric acid and that a 10% by weight aqueous solution of said potassium chloride composition has a pH value of between 6 and 11. The present invention furthermore relates to a process to prepare such a potassium chloride composition and to the use of such a potassium chloride composition.Type: ApplicationFiled: September 6, 2013Publication date: March 13, 2014Applicant: AKZO NOBEL CHEMICALS INTERNATIONAL B.V.Inventors: Shanfeng JIANG, Hendrikus Wilhelmus Bakkenes, Roberto Aloysius Gerardus Maria Bergevoet, Johannes Albertus Maria Meijer, Maria Steensma
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Publication number: 20120244231Abstract: The present invention relates to a potassium chloride composition comprising an iron complex of tartaric acid, characterized in that at least 5% by weight of the tartaric acid is mesotartaric acid and that a 10% by weight aqueous solution of said potassium chloride composition has a pH value of between 6 and 11. The present invention furthermore relates to a process to prepare such a potassium chloride composition and to the use of such a potassium chloride composition.Type: ApplicationFiled: November 29, 2010Publication date: September 27, 2012Inventors: Shanfeng Jiang, Hendrikus Wilhelmus Bakkenes, Roberto Aloysius Geradrdus Maria Bergevoet, Johannes Albertus Maria Meijer, Maria Steensma
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Publication number: 20120129952Abstract: The present invention relates to a sodium chloride composition comprising an iron complex of tartaric acid wherein between 55 and 90% by weight of the tartaric acid is meso-tartaric acid. The present invention furthermore relates to a process to prepare such a sodium chloride composition and to the use of such a sodium chloride composition.Type: ApplicationFiled: May 27, 2010Publication date: May 24, 2012Applicant: AKZO NOBEL CHEMICALS INTERNATIONAL B.V.Inventors: Hendrikus Wilhelmus Bakkenes, Roberto Aloysius Gerardus Maria Bergevoet, Johannes Albertus Maria Meijer, Maria Steensma
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Publication number: 20120130124Abstract: The present invention relates to a process for the preparation of a composition comprising tartaric acid wherein between 55 and 90% by weight of the tartaric acid is meso-tartaric acid, comprising the steps of (i) preparing an aqueous mixture comprising between 35 and 65% by weight of a di-alkali metal salt of L-tartaric acid, a di-alkali metal salt of D-tartaric acid, a mixture of di-alkali metal salts of L-tartaric acid, D-tartaric acid, and optionally meso-tartaric acid, and between 2 and 15% by weight of an alkali metal or alkaline metal hydroxide, and (ii) stirring and heating the aqueous mixture to a temperature of between 100° C. and its boiling point until between 55 and 90% by weight of tartaric acid has been converted to meso-tartaric acid.Type: ApplicationFiled: May 27, 2010Publication date: May 24, 2012Applicant: AKZO NOBEL CHEMICALS INTERNATIONAL B.V.Inventors: Hendrikus Wilhelmus Bakkenes, Roberto Aloysius Gerardus Maria Bergevoet, Johannes Albertus Maria Meijer, Maria Steensma
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Publication number: 20110214257Abstract: The present invention pertains to a process for producing sodium chloride comprising the steps of: (i) preparing a brine having a sodium chloride concentration which is higher than the sodium chloride concentration of the eutectic point but lower than the sodium chloride concentration of a saturated brine by dissolving a sodium chloride source in water; (ii) cooling the resulting brine by indirect cooling in a self-cleaning fluidized bed heat exchanger/crystallizer to a temperature lower than 00 C but higher than the eutectic temperature of the resulting brine, thereby forming a slurry comprising sodium chloride dihydrate and a mother liquor; (iii) feeding the sodium chloride dihydrate to a recrystallizer to form sodium chloride and a mother liquor, and (iv) recycling at least part of the mother liquor obtained in step (ii) and/or step (iii) to step (i).Type: ApplicationFiled: October 29, 2009Publication date: September 8, 2011Applicant: Akzo Nobel N.V.Inventors: Hendrikus Wilhelmus Bakkenes, Johannes Albertue Maria Meijer, Allert Schokker, Maria Steensma
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Publication number: 20110129409Abstract: The present invention pertains to a process for producing sodium chloride comprising the steps of (i) preparing a brine comprising at least 150 g/l of sodium chloride by dissolving a sodium chloride source in water, (ii) subjecting the resulting brine to a eutectic freeze crystallization step by indirect cooling of said brine, resulting in the formation of ice, sodium chloride dihydrate, and a mother liquor, (iii) separating the sodium chloride dihydrate formed in step (ii) from the ice and optionally mother liquor at the eutectic temperature, such that a sodium chloride dihydrate-rich stream is formed, and (iv) feeding said sodium chloride dihydrate-rich stream to a recrystallizer to form sodium chloride and a mother liquor.Type: ApplicationFiled: May 22, 2009Publication date: June 2, 2011Applicant: Akzo Nobel N.V.Inventors: Hendrikus Wilhelmus Bakkenes, Johannes Albertus Maria Meijer, Allert Schokker
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Publication number: 20100084605Abstract: The present invention pertains to a process for preparing a concentrated alkali metal hypochlorite solution by reacting chlorine with an alkali metal hydroxide to form alkali metal hypochlorite, alkali metal chloride, and water, wherein one or more aqueous solutions comprising an alkali metal hydroxide and alkali metal hypochlorite are led in a swirling flow through one or more inlet pipes of a reaction vessel, wherein chlorine is injected into said reaction vessel at its top part and flows downwards through said one or more inlet pipes, and wherein the outflow openings of the one or more inlet pipes are arranged such that the solution leaving said outflow openings, being supersaturated with alkali metal chloride, is directed through a fluidized bed of said alkali metal chloride, while the flow direction is converted upwards through said fluidized bed.Type: ApplicationFiled: November 30, 2007Publication date: April 8, 2010Applicant: AKZO NOBEL N.V.Inventors: Hendrikus Wilhelmus Bakkenes, Mateo Jozef Jacques Mayer, Gerhard Fokko Remmers, Jan Visser