| Patents for D21C 3 - Pulping cellulose-containing materials (5,020) |
|---|
| 06/29/2005 | EP1546450A1 Method of deresinating pulp using alkyl alcohol alkoxylate surfactants |
| 06/29/2005 | CN1208514C Method for separating lignocellulose-containing biomass |
| 06/28/2005 | CA2203096C Batch process for preparing improved kraft pulp |
| 06/23/2005 | US20050133173 Process for bleaching Kraft pulp |
| 06/22/2005 | EP1543193A1 Alkaline process for the manufacturing of pulp using alkali metaborate as buffering alkali |
| 06/17/2005 | CA2490390A1 Improved process for bleaching kraft pulp |
| 06/16/2005 | US20050126727 Method for inhibiting calcium salt scale |
| 06/15/2005 | CN1626730A Paper making cooking agent in low cost and method of application |
| 06/09/2005 | WO2005052247A1 Catalyzer for clean pulping and process for using the same |
| 06/09/2005 | US20050121160 Process for the separation of organic nitrosonium and/or hydroxylamine compounds by means of cation exchange resins and recovery and oxidation processes based thereon |
| 06/09/2005 | DE10350075A1 Verfahren und Vorrichtung zur Prozessführung bei der Zellstoffkochung Method and apparatus for process control in pulp digestion |
| 06/08/2005 | EP1538256A2 Implementation of dissolved solids profiling |
| 06/08/2005 | CN1624239A Pulp making method of rice wheat straw fiber raw material |
| 06/07/2005 | US6902649 processed seed fiber suitable for other uses in papermaking or as a food additive for human consumption; corn, oats, soybeans; slurrying fiber in a dilute acid solution and washing; modifying agent step preferably includes an acid chlorite solution or a peroxide solution for improved brightness |
| 06/02/2005 | WO2005019526A3 System and method for controlling a processor including a digester utilizing time-based assessments |
| 06/02/2005 | US20050115692 Improving properties of the pulp or reducing the digester cycle time in alkaline chemical pulping processes in which a phosphonate and/or carboxylate compound is admixed with the alkaline aqueous mixture in the digester of the chemical pulping process |
| 06/02/2005 | US20050115691 Cooking of cellulose pulp in a cooking liquor containing preevaporated black liquor |
| 06/01/2005 | CN1621612A Bleaching paper pulp made from Salix psammophila and making method thereof |
| 06/01/2005 | CN1621611A Technology of making paper and paper products by banana fibre |
| 06/01/2005 | CN1621610A Technology for preparing ryegrass slurry by pharmaceutical soak without boiling |
| 06/01/2005 | CN1621609A Integral slurrying method including oxygen delignify and bleaching and apparatus thereof |
| 06/01/2005 | CN1204314C Low-cost digesting agent for making paper |
| 05/25/2005 | CN1619056A Highly pare lignin, hihg efficiency fiber separating technology |
| 05/25/2005 | CN1619055A Highly pure lignin, high efficiency fiber separating equipment system |
| 05/19/2005 | WO2005045126A1 Methods for producing pulp and treating black liquor |
| 05/19/2005 | US20050103454 manufacture of cooked cellulose pulp starting with chips |
| 05/19/2005 | CA2544426A1 Methods for producing pulp and treating black liquor |
| 05/18/2005 | EP0865484B1 Novel xylanase composition and method for production thereof |
| 05/18/2005 | CN1616759A Ecological balance pulping method without pollution |
| 05/18/2005 | CN1616758A Process for biologically pulping |
| 05/12/2005 | US20050098280 Quinone based catalysts combined with delignification using alkaline solutions of sodium metaborate (NaBO2) and sodium carbonate (Na2CO3) as major components can efficiently delignify lignocellulosic material |
| 05/11/2005 | CN1614142A Recovering and reutilizing process for papermaking sludge |
| 05/11/2005 | CN1613948A Process for bamboo pulp black liquid binder and apparatus thereof |
| 05/11/2005 | CN1201046C Middle-or low-pressure explosion method for making pulp with broad-leaf wood |
| 05/10/2005 | US6890404 Improving properties of pulp produced or reducing the digester cycle time in alkaline chemical pulping processes in which an effective amount of at least one selected phosphonate or carboxylate compound or mixtures thereof is admixed with the |
| 05/04/2005 | EP1528148A2 Method and apparatus for conducting the process of cooking cellulose pulp |
| 05/04/2005 | CN1611673A Clean pulping catalyst and its application process |
| 05/04/2005 | CN1611672A Papermaking pulping cooking auxiliary |
| 05/04/2005 | CN1611602A Method for regulating lignin in populus tomentosa |
| 05/04/2005 | CN1200152C Laiosai fiber |
| 04/28/2005 | US20050087314 Pulp cooking with particular alkali profiles |
| 04/28/2005 | CA2539500A1 Materials useful in making cellulosic acquisition fibers in sheet form |
| 04/26/2005 | CA2294186C Method in connection with the pretreatment of comminuted fibrous material |
| 04/20/2005 | EP1523594A1 A method and a digester for the continuous cooking of wood raw material to cellulose pulp |
| 04/14/2005 | US20050076568 Partial oxidation of cellulose spent pulping liquor |
| 04/12/2005 | US6878236 Raw material for printing paper, a method for producing said raw material and a printing paper |
| 04/12/2005 | CA2293564C Method for continuous cooking in a single-vessel digester |
| 04/07/2005 | US20050074542 Obtaining organic fiber from fruit and root cell mass; quality thickening agents; reduced waste water; soaking raw material from primarily parenchymal cell wall structures in aqueous solution at reduced temperature and pressure then plate refining |
| 04/06/2005 | CN1603514A Cleaner production of paper by straw and lignin modification process |
| 04/06/2005 | CN1603513A Rice and wheatgrass replacing and cooking process |
| 04/05/2005 | US6875414 Polysulfide measurement methods using colormetric techniques |
| 04/05/2005 | CA2182688C Recycling of knots in a continuous process for cooking chemical pulp |
| 03/31/2005 | US20050067124 processed seed fiber suitable for other uses in papermaking or as a food additive for human consumption; corn, oats, soybeans; slurrying fiber in a dilute acid solution and washing; modifying agent step preferably includes an acid chlorite solution or a peroxide solution for improved brightness |
| 03/31/2005 | US20050067121 conveying, mixing, leveling and flaking dewatered pulps to produce flakes for use in dryers |
| 03/31/2005 | US20050067120 refining crude soybean oils, then oligomerization, mixing the soybean oil oligomer with surfactants to form an emulsion andmixing the emulsion with recycled paper pulp to improve absorbent product properties |
| 03/30/2005 | CN1600989A Method for fabrication food wrap paper and cultural paper by using corn stalk to make no chlorin bleached pulp |
| 03/30/2005 | CN1600649A Papery food packaging bag and preparing method |
| 03/30/2005 | CN1195118C Low pressure herbal material blasting pulp making process |
| 03/29/2005 | CA2174970C Method and device for the continuous cooking of pulp |
| 03/24/2005 | US20050061464 Feeding arrangement for feeding of chips to chip bins |
| 03/24/2005 | US20050061459 A pressure vessel having a lengthwise axis, rear upstream inlet end having wood chip intake means, and front outlet having pulp outlet means; washing and digesting; delignification |
| 03/24/2005 | US20050061458 Method and arrangement for impregnating chips |
| 03/23/2005 | CN1599824A Papermaking process using enzyme-treated sludge, and products |
| 03/23/2005 | CN1598127A Whole black liqucd large liqucd rate cercal grass cooking technology with digester |
| 03/22/2005 | US6869503 Composition for inhibiting calcium salt scale |
| 03/22/2005 | CA2222661C Implementation of dissolved solids profiling |
| 03/16/2005 | EP1513981A1 Process for the manufacturing of cellulose pulp |
| 03/16/2005 | CN1594729A Biological enzyme deinking method for waste paper |
| 03/16/2005 | CN1594728A Preparation process for high concentration black liquor in vertical kettle and products thereof |
| 03/16/2005 | CN1594727A Method for making pulp using feather as raw material |
| 03/16/2005 | CN1594726A Oxygen stewing separation method and equipment used therefor |
| 03/09/2005 | CN1590640A In ball washing classifying digesting technology |
| 03/09/2005 | CN1590639A Impregnation pretreatment technology of raw material used in soda process pulp making |
| 03/03/2005 | WO2005019526A2 System and method for controlling a processor including a digester utilizing time-based assessments |
| 03/02/2005 | EP1509651A1 A method for the continuous cooking of wood raw material for cellulose pulp |
| 03/02/2005 | CN1587504A Bamboo fiber processing process |
| 03/02/2005 | CN1587503A Grass pulp producing process combining physical breaking and biological degradation |
| 03/02/2005 | CN1587502A New process for producing alkaline hydrogen peroxide mechanical pulp by double scrwe extruding method |
| 03/02/2005 | CN1587501A Method for producing pulp by potassium containing compound as steaming preparation with cellulose containing raw material |
| 03/01/2005 | US6861023 Pumping raw materials in digester; alkalinity solutions; forming fibers |
| 02/24/2005 | WO2005017252A1 Solvents for use in the treatment of lignin-containing materials |
| 02/24/2005 | WO2005017001A1 Dissolution method for lignocellulosic materials |
| 02/24/2005 | CA2534619A1 Solvents for use in the treatment of lignin-containing materials |
| 02/24/2005 | CA2532989A1 Dissolution method for lignocellulosic materials |
| 02/23/2005 | EP0734469B1 Implementation of dissolved solids profiling |
| 02/23/2005 | CN2680713Y Integrated pulping device for oxygen delignification and bleaching |
| 02/23/2005 | CN1584201A Black liquid with washing graded cooking process production in ball and preparing method thereof |
| 02/23/2005 | CN1584200A Non-dit urea pulping process |
| 02/23/2005 | CN1584199A Non-black liquid discharging pulping process and special boiler thereof |
| 02/23/2005 | CN1190555C Enzymatic straw material pulping process |
| 02/17/2005 | US20050034824 System and method for controlling a processor including a digester utilizing time-based assessments |
| 02/16/2005 | EP1240511B1 Determination of kappa number in chemical pulps by raman spectrometry |
| 02/16/2005 | CN1580387A Method for combining living-paper using collagenous fiber and vegetable fiber |
| 02/09/2005 | CN1188568C Enclosed type cycle oxygenolysis pulping method |
| 01/26/2005 | CN1570269A Method for disrupting pulping |
| 01/26/2005 | CN1570268A Process for preparing bamboo grout cakes used for production of secondary cellulose acetate sheets |
| 01/19/2005 | CN1566521A Non-wood fibre displacement, continuous boiling method and apparatus therefor |
| 01/19/2005 | CN1566520A Pulping process by acid catalyzed ethanol method |
| 01/18/2005 | US6843885 High pressure established in vapor phase by means of steam; temperature-controlled supply of cooking liquor in proximity to surface of liquor level is introduced to obtain protective liquor surface with temperature lower than vapor phase |
| 01/18/2005 | CA2323437C Lyocell fibers, and compositions for making the same |