Van Spronsen
Engel Van Spronsen, Kobenhavn K DK
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20120061096 | DOWN HOLE EQUIPMENT REMOVAL SYSTEM - The present invention provides a practical method capable of substantially removing downhole equipment by dissolving it with a chemical. The method comprises introducing an equipment dissolution mixture comprising one or more chemicals and/or materials suitable for the substantial dissolution of the downhole equipment. | 03-15-2012 |
Jacob Van Spronsen, Noordwijk NL
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20130149322 | PROCESS FOR EXTRACTING MATERIALS FROM BIOLOGICAL MATERIAL - The invention is directed to a process for extracting materials from biological material, which process is characterized in that the naturally occurring biological material is treated with an extractant consisting of a deep eutectic solvent of natural origin or a an ionic liquid of natural origin to produce a biological extract of natural origin dissolved in the said solvent or ionic liquid. | 06-13-2013 |
20140341934 | PROCESS FOR EXTRACTING MATERIALS FROM BIOLOGICAL MATERIAL - The invention is directed to a process for extracting materials from biological material, which process is characterized in that the naturally occurring biological material is treated with an extractant consisting of a deep eutectic solvent of natural origin or a an ionic liquid of natural origin to produce a biological extract of natural origin dissolved in the said solvent or ionic liquid. | 11-20-2014 |
Jacob Van Spronsen, Delft NL
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20140374361 | TREATMENT OF AQUEOUS SOLUTIONS - The invention is directed to a process for the recovery or removal of one or more crystallizable compounds from an aqueous solution containing, apart from the said crystallizable compounds, one or more organic or inorganic scale- forming or scale-inducing materials having a lower solubility in water than the said crystallizable compounds, said process comprising subjecting the said solution to at least one eutectic freeze crystallization step with recovery of ice and said one or more crystallizable compounds in crystalline form, recycling at least part of the mother liquor formed in the said eutectic crystallization step and subjecting the said recycle to a treatment with seed crystals for said scale forming or scale inducing compounds, removing at least part of the solid material obtained in said treatment step and recycle of the aqueous liquid thus obtained to the eutectic freeze crystallization step or to the feed thereto. | 12-25-2014 |
Johannes Van Spronsen, Noordwijk NL
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20100115988 | Treatment of Molybdate Containing Waste Streams - The invention is directed to a process for the treatment of an aqueous solution comprising sodium carbonate and/or sodium bicarbonate and sodium molybdate, said process comprising freeze crystallising the solution at the eutectic freezing point thereof and recovering substantially pure ice crystals, substantially pure sodium carbonate and/or sodium bicarbonate and an aqueous product solution containing dissolved sodium molybdate. | 05-13-2010 |
20100186444 | Crystallizer With Internal Scraped Cooled Wall and Method of Use Thereof - Apparatus for separating solids from a mixture or solution, comprising an outer wall provided with an inlet for the mixture or solution and provided with a first discharge for discharging an ice slurry and a second discharge for discharging a salt slurry, one or more raking or scraping elements for scraping solidified material from cooled wall portions which are cooled at or close to a temperature where the mixture or solution solidifies, preferably the eutectic temperature thereof. | 07-29-2010 |