Class / Patent application number | Description | Number of patent applications / Date published |
162049000 | With testing, sampling or analyzing | 17 |
20090025893 | Method and Apparatus for Determining the Total Peroxide Content of Pulp Suspension - A method and an apparatus for determining the total peroxide content of a cellulose pulp suspension in the pulp suspension bleaching stage, wherein the bleaching chemical is peroxide. A sample is taken from the pulp suspension, which sample is measured in a measuring device ( | 01-29-2009 |
20090084510 | Methods To Detect Organic Contaminants In Pulp and Fiber - A method to detect organic contaminants in pulp and fiber is described which uses hydrophobic dyes, such as fluorescent dyes. | 04-02-2009 |
20090250180 | Method for Controlling a Pulping Process - Please delete the Abstract as originally filed and substitute therefore the attached substitute Abstract which is submitted in both marked-up and clean copy versions. | 10-08-2009 |
20090260767 | USE OF HYDROPHOBIC DYES TO MONITOR HYDROPHOBIC CONTAMINANTS IN A PAPERMAKING PROCESS - A method of monitoring and controlling one or more types of hydrophobic contaminants in a papermaking process is disclosed. The methodology utilizes the measurement of hydrophobic dyes, which are capable of fluorescing and interacting with the hydrophobic contaminants. In addition, a method of determining the relative size of the hydrophobic contaminants is disclosed as well. | 10-22-2009 |
20090301673 | SYSTEM AND A METHOD FOR THE STEAM PRE-TREATMENT OF CHIPS IN ASSOCIATION WITH THE PRODUCTION OF CHEMICAL CELLULOSE PULP - The vessel in which the chips are pre-treated with steam (ST) is provided with a ventilation channel at the top of the vessel for the leading away of weak gases to a weak gas system (NCG). A simple safety system has been installed with the aim of guaranteeing that these weak gases do not reach a level of concentration at which these weak gases become explosive. The safety system has a control unit (CPU) that detects a process parameter that is indicative of the fraction of moisture in the weak gases and opens dilution lines that supply air for the dilution of the weak gases in the ventilation channel. It is appropriate that the dilution take place in stages, where the dilution lines are opened in stages with successively increasing temperature of the weak gases. | 12-10-2009 |
20090301674 | METHOD AND MEASURING DEVICE FOR MEASURING RECYCLED FIBRE PULP - A measuring device is provided that includes a camera, and an image-processing unit and a fractionating pipe. The receives a sample from recycled fibre pulp of a recycled fibre process and arranges the particles of the flowing sample in accordance with particle size. The measuring device processes the sample as at least two fractions according to particle size. The camera images at least one fraction. The image-processing unit receives images imaged by the camera and measures at least one parameter of an added substance in at least one imaged fraction. | 12-10-2009 |
20100012284 | METHOD FOR DETERMINING HYDROPHOBIC ORGANIC PARTICLES IN A PAPER STOCK - A method for determining the concentration of hydrophobic organic particles in the filtrate of a paper stock, wherein the hydrophobic organic particles are marked with a fluorescent dye, said particles are then excited to emit light, the light emitted by the marked particles is detected and the concentration by mass of the particles is determined from the fluorescence intensity, and use of the method for determining the total concentration of hydrophobic organic particles in the filtrate of a paper stock drained on a wire. | 01-21-2010 |
20100116450 | BLEACHED FIBER PRODUCT PRODUCTION METHOD, APPARATUS TO BE USED THEREFOR, AND BLEACHED FIBER PRODUCT PRODUCED THEREBY - An inventive method includes the steps of: loading a fiber product in an appropriate form into a treatment vessel; wetting the fiber product; forcibly circulating an ozone-containing liquid in contact with the wetted fiber product to thereby bleach the fiber product; and forcibly circulating an ozone decomposing chemical agent liquid in contact with the ozone-treated fiber product to decompose ozone. This method ensures efficient bleaching of the fiber product with the ozone. Further, the method is advantageous in that the resulting bleached fiber product is less liable to be yellowed over time. | 05-13-2010 |
20100132900 | METHOD FOR DETERMINING THE BRIGHTNESS OF PAPER PULP - The invention refers to a method for determination brightness of paper pulp by measuring fluorescence from UV. The measurement is carried out directly in the pipe in which the paper pulp, which shall constitute the paper, is fed forward, by an in-line brightness meter, which also is capable to measure fluorescent substances in the paper pulp, a direct control of the partial stages in the paper pulp process where fluorescent substances can exist or a determination at the end of the process can be accomplished. | 06-03-2010 |
20100147472 | EXTRACTION OF HEMP FIBERS - A method of extracting hemp fibers from decorticated hemp bast skin involves pre-treating the decorticated hemp bast skin with an aqueous solution containing di-sodium citrate, tri-sodium citrate or a mixture thereof having a pH of from about 6-13 at temperature of about 90° C. or less; and subsequently treating recovered fiber with a enzyme. Determining the extent of completion of a plant fiber degumming process involves treating degummed fiber with a recombinant pectinase expressed in an organism that produces neither cellulose nor xylanase, to release reducing sugar from any residua pectin on the degummed fiber, and, quantifying the released reducing sugar. | 06-17-2010 |
20100236732 | USE OF FLUORESCENCE TO MONITOR HYDROPHOBIC CONTAMINANTS IN A PAPERMAKING PROCESS - A method of monitoring and controlling one or more types of hydrophobic contaminants in a papermaking process is disclosed. The methodology utilizes the measurement of dyes, which are capable of fluorescing and interacting with the hydrophobic contaminants. | 09-23-2010 |
20100258257 | Method of and Apparatus for Controlling the Height of a Column of Material in a Vessel Upstream of a Pump - A method of and an apparatus for controlling the height of a material column in a vessel upstream of a pump, in which method material is conveyed into an upper portion of the vessel, electrical signals are provided on the basis of the presence of material at predetermined measuring levels of the vessel by using a first sensor set disposed at a first measuring level at the upper portion of the vessel and a second sensor set disposed at a second measuring level at the lower portion of the vessel, and material is extracted at a controlled flow speed from a lower portion of the vessel by the pump, wherein the provided electrical signals are used to infer weighting factors of measuring level presence functions, and the flow speed is controlled on the basis of the weighting factors of the measuring level presence functions. | 10-14-2010 |
20110073263 | ENHANCED METHOD FOR MONITORING THE DEPOSITION OF ORGANIC MATERIALS IN A PAPERMAKING PROCESS - A method for monitoring with enhanced sensitivity of the deposition of one or more organic materials dispersed in an aqueous medium in a papermaking process which includes measuring the rate of deposition of the organic materials from the aqueous medium onto a quartz crystal microbalance having a top side contacting with the aqueous medium coated with a layer containing a material with surface energy in the range from about 34 to about 49 dynes/cm2, and a second, bottom side isolated from the aqueous medium is disclosed. Additionally, a method for measuring the effectiveness of an inhibitor that decreases the deposition of the organic materials in a papermaking process is also disclosed. | 03-31-2011 |
20120037325 | TREATMENT, SUCH AS CUTTING, SOAKING AND/OR WASHING, OF ORGANIC MATERIAL - The invention relates to an apparatus for treating material by cutting, soaking and/or washing of the material, wherein the apparatus comprises a receptacle ( | 02-16-2012 |
20120255691 | Procedure For Controlling The Pulp Quality From Refiners - The use of measurement information from traditional process variables along with measurement signals from the refining zones in refiners for the refining and grinding of pulp is disclosed for estimating the quality of pulp output from the refiner lines. Control of the refining process is thus improved by means of a method used with a series of refiners utilizing estimated pulp quality information from each refiner in order to be able to rapidly control the refining disturbances in the process. | 10-11-2012 |
20130248127 | METHOD AND ARRANGEMENT FOR MEASURING AND CONTROLLING CHIP AND/OR LIQUID LEVEL - A method for measuring and controlling a chip level and/or a chip-liquor combination level and/or liquor level height of a liquid-steam phase digester or a hydraulic digester which digester comprises a chip screw for feeding chips into a digesting volume. The method comprises mounting electrode pairs in certain heights and vertically at distances from each other in the digesting volume of the digester, the electrode pairs being formed of electrodes; connecting the electrode pairs to electric circuits; measuring in each electric circuit a current or voltage value during operation of the digester; determining, based on the measurement, type of material layer (for example, steam, chips, combination of chips and liquor, or liquor) located in a certain height, based on the electrical conductivity of the materials in the digesting volume. An arrangement for measuring and controlling a chip level and/or a chip-liquor combination level and/or a liquor level height of a liquid-steam phase digester or a hydraulic digester. | 09-26-2013 |
20140190643 | METHOD OF AND AN ARRANGEMENT FOR TRANSFERRING A PROCESS LIQUID, AN INDUSTRIAL FACILITY AND A METHOD OF SIMPLIFYING THE LAYOUT OF SUCH - The present invention relates to a method of and an arrangement for transferring a process liquid from a washing and thickening device to a subsequent process stage. In accordance with an advantageous embodiment of the present invention, the method and the arrangement are applicable, for example, in transferring fibre suspensions or pulps from washing and thickening device to a subsequent process stage in pulp and paper making industry such that the dilution of pulp after a washing and thickening device is performed in a stand pipe ( | 07-10-2014 |