| Patents for D21C 7 - Digesters (1,988) |
|---|
| 09/19/2007 | CN200949177Y Blockless spraying chamber |
| 08/22/2007 | CN101021050A Process of cow dung paper pulp with cow dung as material |
| 08/22/2007 | CN101021049A Cow dung paper pulp produced with cow dung as material |
| 08/16/2007 | US20070187053 Cellulose pulp; pressurization, heating in fluid filled zone |
| 08/15/2007 | EP1818445A2 A method for impregnating chips in a continuous digestion system |
| 08/15/2007 | CN101018906A Screen assembly for a pulp digester |
| 08/09/2007 | DE102005048958B4 Verfahren und Vorrichtung zum Gewinnen von Holzfasern aus Holzhackschnitzeln A method and apparatus for obtaining wood fibers from wood chips |
| 08/08/2007 | CN101012628A Production technology of thermomechanical bamboo pulp |
| 08/01/2007 | CN101008160A Method for producing paper pulp utilizing herbal plant, crop stalk and ore powder |
| 07/25/2007 | EP1702102B1 Device and method withdrawing cellulose pulp from a container |
| 07/11/2007 | CN2921075Y Reactor for making grass pulp |
| 07/10/2007 | US7241363 Methods to decrease scaling in digester systems |
| 07/05/2007 | US20070151693 Device and method withdrawing cellulose pulp from a container |
| 07/05/2007 | US20070151691 Method for converting a digester for use as a gas phase and hydraulic phase continuous digester |
| 07/05/2007 | US20070151682 Method and apparatus for feeding wood chips into a chip bin |
| 06/28/2007 | WO2007073312A1 Method for controlling a process for the production of short-fibred cellulose pulp |
| 06/28/2007 | CA2632124A1 Method for controlling a process for the production of short-fibred cellulose pulp |
| 06/21/2007 | US20070137806 Rapid sampling assembly for thermo-mechanical pulp control application |
| 06/12/2007 | US7229526 Method and apparatus for the feeding of fibers |
| 06/12/2007 | US7229524 Feeding arrangement for feeding of chips to chip bins |
| 06/07/2007 | WO2007064293A1 Method and device for the continuous cooking of pulp |
| 06/06/2007 | CN1974922A Method for producing chemical fiber pomace with fiber as raw material |
| 06/06/2007 | CN1974921A Method for producing bamboo pomace |
| 05/16/2007 | EP1784534A1 Screen assembly for a pulp digester |
| 05/16/2007 | CN1963017A Process for producing purified pulp |
| 05/15/2007 | US7217338 Process for continuously cooking chemical cellulose pulp |
| 05/15/2007 | CA2398232C Method and measurement device for measuring suspension |
| 05/09/2007 | CN1958942A Method of ultrasound in use for producing purified pulp |
| 05/03/2007 | US20070095490 Using pressurized fluid withdrawn from the treatment vessel for recovery for expelling the chips from the sluice feeder and subsequently sending the previously pressurized fluid to the recovery system reduces the requirement for high pressure pumps that consume large quantities of electrical energy |
| 05/02/2007 | EP1778912A1 Central screen |
| 05/02/2007 | CN1313195C Method and apparatus for treating black liquor of paper pulp factory |
| 04/26/2007 | WO2005099554A3 Dual zone wireless pulp washer |
| 04/19/2007 | DE102005048958A1 Verfahren und Vorrichtung zum Gewinnen von Holzfasern aus Holzhackschnitzeln A method and apparatus for obtaining wood fibers from wood chips |
| 04/17/2007 | US7204914 System and method for controlling a processor including a digester utilizing time-based assessments |
| 04/11/2007 | CN2887942Y Continuous-cooking pressurized-explosion pulping technology device |
| 04/11/2007 | CN1946905A Tissue paper with protruding lotion deposits |
| 04/11/2007 | CN1946903A Fibrous structures comprising a transferable agent |
| 04/11/2007 | CN1944788A Producing method for recombining, orienting and plasticizing bamboo cellulose |
| 04/11/2007 | CN1944787A Producing method for recombining, orienting and plasticizing wood cellulose |
| 04/05/2007 | WO2007036603A1 Feeder |
| 04/05/2007 | CA2611575A1 Feeder for transferring material between vessels held at different pressures |
| 04/04/2007 | EP1769118A1 Screen device for a digester for producing pulp |
| 04/04/2007 | CN1308545C Vertical boiling pot for paper pulp |
| 03/28/2007 | CN1936176A Clean production method for rice-wheat straw pulp capable of poaching by acetic acid method |
| 03/22/2007 | US20070062654 Treatment of wood chips using enzymes |
| 03/21/2007 | EP1764441A1 Continuous digester with fluid circulation |
| 03/21/2007 | CN2880887Y Multifunction paper pulp digester |
| 03/15/2007 | US20070056707 Continuous digester with fluid circulation |
| 03/15/2007 | US20070056703 A vessel is constructed with (preferably substantially stationary) screen surfaces which minimize compaction of comminuted cellulosic fibrous material, and allow springback of the material, as it flows downwardly |
| 02/28/2007 | CN1920169A Method for making pulp with smooth cord-grass as raw materials by boiling with sodium anthraquinone |
| 02/28/2007 | CN1920168A Method of preparing pulp by anaerobic fermenting Spartina alterniflora and cooking soda, anthraquinone and fermented Spartina alterniflora |
| 02/20/2007 | US7178698 Container with discharging device |
| 02/14/2007 | EP1751352A1 Tissue paper with protruding lotion deposits |
| 02/14/2007 | CN2869091Y Thermal-insulating reaction tank |
| 02/14/2007 | CN2869090Y Normal heating reaction tank |
| 02/14/2007 | CN1912238A Method for producing black liquid by ball cleaning step cooking technology |
| 02/01/2007 | WO2007013851A1 System and method for treating cellulose pulp in connection with the emptying of a batch digester. |
| 01/30/2007 | CA2243733C Cellulose pulp production using a substantially constant diameter digester |
| 01/11/2007 | US20070006987 Office equipment for paper recycling |
| 01/11/2007 | US20070006986 Component, especially a hybid carrier for a vehicle, and method for the production of said type of component, and use of said type of component |
| 01/04/2007 | US20070000626 Vaporization; slurrying; for producing chemical cellulose pulp from cellulose chips |
| 12/28/2006 | DE102006027746A1 Treatment method for fiber sheet involves moistening of fiber sheet with moistening fluid e.g. water, water mixture before calendering whereby excess moistening fluid is removed from surface of backing roll which supports fiber sheet |
| 12/20/2006 | CN1880575A Composite cellulose viscose filament yarn with composite cellulose pulp as raw materials made of cotton, wood and bamboo mixture and preparation method thereof |
| 12/14/2006 | US20060278353 Method and apparatus for estimating relative proportion of wood chips species to be fed to a process for producing pulp |
| 12/13/2006 | CN2846468Y Paper pulp boiler |
| 11/22/2006 | CN1865584A Process for vertically digesting bagasse pulp by anthraquinone sulfate process |
| 11/21/2006 | US7138359 Heat transfer recording medium and printed product |
| 11/08/2006 | CN2835321Y Enforced bottom-charging-steam and mixing device for ball type pulping equipment for making paper |
| 11/07/2006 | CA2277931C Method and device for the continuous cooking of chemical pulp |
| 10/26/2006 | WO2006111607A1 An apparatus for distruibuting a pulp flow |
| 10/24/2006 | US7125472 Slotted screen for digester |
| 10/19/2006 | US20060231222 Method and apparatus to decrease steam consumption in conventional batch digesters |
| 10/03/2006 | US7115189 Slotted screen for digester |
| 09/28/2006 | WO2006101449A1 Arrangement for feeding a slurry of chips and liquid |
| 09/28/2006 | CA2602580A1 Arrangement for feeding a slurry of chips and liquid |
| 09/27/2006 | EP1704277A1 Feed of a mixture of chips and fluid from a low-pressure system to a high-pressure system |
| 09/26/2006 | US7112256 Method for continuous cooking of chemical pulp to improve heat economy |
| 09/21/2006 | US20060207733 Method and system for controlling the addition of oxygen gas and alkali during oxygen gas delignification |
| 09/20/2006 | EP1702102A1 Device and method withdrawing cellulose pulp from a container |
| 09/14/2006 | US20060201641 Methods for producing pulp and treating black liquor |
| 09/12/2006 | US7105076 Gas phase continuous digester having an inverted top separator with liquor injection |
| 09/12/2006 | CA2362238C Method and apparatus for treating pulp |
| 09/08/2006 | WO2006093581A2 Virtual hand sheet method and system for estimating paper properties |
| 09/08/2006 | WO2006092045A1 Method for determining chemical pulp kappa number with visible-near infrared spectrometry |
| 09/07/2006 | US20060196622 Exposing wet fibres to light source covering range in visible region of 350-750 nm and range in near-infrared of 1100-2400 nm, reflecting light from wet fibres, establishing spectrum, comparing spectrum with known spectrum of property and evaluating comparison; utility in pulp manufacture line |
| 09/07/2006 | US20060196621 Virtual hand sheet method and system for estimating paper properties |
| 09/06/2006 | CN1829840A Chemimechanical desilication of nonwood plant materials |
| 09/06/2006 | CN1827911A Mechanical cold method for making paper pulp |
| 09/06/2006 | CN1273683C Preparation process for high concentration black liquor in vertical kettle and products thereof |
| 08/31/2006 | US20060191651 Storing/treating cellulose pulp of medium consistancy for papermaking by inserting a pipe in the conical bottom inlet which can be withdrawn when converting the tower back to the original up-flow; pushing up or pulling down the insertion pipe can adjust the stationary stagnation zone; antifouling agent |
| 08/29/2006 | US7097740 Method and screen for screening at least two pulp mixtures |
| 08/24/2006 | US20060185810 Cooking device for regenerating a cooking product |
| 08/09/2006 | CN1268806C Non-black liquid discharging pulping process and special boiler thereof |
| 08/03/2006 | US20060169429 System and method for oxygen delignification of pulp made for lignocellulosic material |
| 08/02/2006 | EP1604060A4 Method for producing corn stalk pulp and paper products from corn stalk pulp |
| 08/02/2006 | CN1811057A Instantaneously heating and fast cooling set for cellulose |
| 08/01/2006 | USRE39208 comminuted cellulose fiber; vertical vessel; intake, discharging fluid flow; screen; reduce radial compression |
| 07/27/2006 | US20060162880 Vertical cooking vessels are used during the production of cellulose pulp in continuous cooking plants where the wood raw material and the cooking fluid are fed in at the top of the vessel and the cooked pulp is output continuously at the bottom of the digester |
| 07/26/2006 | CN1266333C High efficiency grass pulp washing and bleaching machine, and its pulping process |
| 07/20/2006 | US20060159551 Arrangement for adjusting rotor position in a roting sluice |