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Matches 601 - 650 out of 689

Document Document Title
JPS61194288A  
JPS6122079B2  
JPS6183387A  
JPS612719Y2
In a roll for pressure treating webs of material comprising a stationary core which is surrounded by a rotatable hollow cylinder spaced from the core, and in which there are provided, between the core and the hollow cylinder, longitudina...  
JPS60231888A
A pair of synchronized rotating valves (45, 46) is provided for feeding steam to the introduction nozzles (l7-28) and pipes (3l-38) in a vertical presteaming vessel (l0). After presteaming, the chips pass through a chips meter (59) to a ...  
JPS6031665B2
A nip roll is disclosed having an inner substantially rigid cylindrical member and an outer cover member of a generally incompressible substantially resilient material positioned about the inner member with reinforcing means embedded wit...  
JPS60110994A
A high yield chemithermomechanical (CTMP) process for obtaining high strength hardwood pulps is disclosed wherein hardwood chips are subjected to a two-stage chemical treatment prior to defibration, the first consisting of chip impregnat...  
JPS59204997A  
JPS59192790A  
JPS59137583A
11 The present invention relates to the treatment of wood-chips for the manufacture of chemi-thermomechanical pulp, known as CTMP. After pre-steaming and pre-impregnation, washing and drying, but before final impregnation, pre-heating an...  
JPS59125992A  
JPS5922830B2
Impregnation of fiber material before digestion is accomplished utilizing a minimum amount of equipment. Liquid with entrained fiber material - both fiber material sufficiently impregnated with liquid to be denser than the liquid and mat...  
JPS5966588A  
JPS5915923B2
Method of producing microcrystalline cellulose. Cellulose containing at least about 92% alpha-cellulose and 5 - 6.5% beta cellulose, having a solubility in 5% sodium hydroxide of about 2 to 4% and a viscosity 110 to 180 mP is acid hydrol...  
JPS5959641A
NEW MATERIAL:The anthraquinone derivative of formula I (n is the number of hydrogen atoms added to the double bond of benzene ring and is 0, 2 or 4). EXAMPLE: 1-(2-Methyl-1-propenyl)-3,4-dimethyl-1,4,4a,9a-tetrahydroant hraquinone. USE: ...  
JPS58219005A  
JPS58180692A  
JPS5847517B2  
JPS58156092A
A waste paper processing system in which a fibrous suspension of waste paper is cleaned and sorted. The fine cleaning of the suspension is carried out by means of one or more conical centrifuges in a subsidiary stream which branches off ...  
JPS58501328A
Process and apparatus for mixing a wood pulp slurry with a chemical at the consistency at which the slurry exits a washer or the subsequent stem mixer, 7 to 15%. The chemicals would include non-condensable or unsaturated gases such as ox...  
JPS5898093A
PURPOSE: A pretreatment of a cellulosic material for enzymatic saccharification that consists of oxidation of the cellulosic material containing lignin with oxygen in an alkali medium, thus remarkably increasing the rate of enzymatic hyd...  
JPS58500901A
A fibrous material, in particular a cellulose material, is subjected to heating and subsequent treatment at high pressure, in particular with application of an impregnation agent after the heating and before the high pressure treatment. ...  
JPS5876589A  
JPS57171784A  
JPS57149581A  
JPS57121688A  
JPS5730195B2  
JPS5721596B2  
JPS5756600A
Cellulose pulp having a reduced tensile strength [sic] and excellent hydrophilic properties, which is prepared using a hydrophilic debonder of the general formula < IMAGE > in which: R1 denotes methyl, ethyl, propyl, hydrogen or hydroxye...  
JPS56159385A  
JPS5685488A  
JPS5685490A  
JPS5620395B2  
JPS5631092A  
JPS5562289A
There is disclosed a process for the delignification of lignocellulosic material by treatment with an alkaline liquor in the presence of a cyclic keto compound such as anthraquinone. The lignocellulosic material in subdivided form is fir...  
JPS5562288A  
JPS5536313A  
JPS5522093A  
JPS55516B2  
JPS54151601A  
JPS5437841Y2  
JPS5429602B1  
JPS5466963A
In a roll for pressure treating webs of material comprising a stationary core which is surrounded by a rotatable hollow cylinder spaced from the core, and in which there are provided, between the core and the hollow cylinder, longitudina...  
JPS542282B1  
JPS542281B1  
JPS53143701A  
JPS53139804A  
JPS53139802A  
JPS53134903A  
JPS5346782Y2  

Matches 601 - 650 out of 689