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Matches 651 - 689 out of 689

Document Document Title
JPS5331962B2
A method is described for increasing the yield of pulp obtained from an alkaline pulping process. A lignocellulosic material, such as wood chips, is first pretreated with an aqueous solution containing from 0.1 to 10% by weight of monoet...  
JPS5324521B1  
JPS5381704A  
JPS5381705A  
JPS52110902A
Process for breaking down wood chips, by chemical means, is claimed, where there is a water content in the wood material. Before the chemical decomposition process, the wood chips are placed in a pressure reactor to be treated by heat an...  
JPS5299301A  
JPS5228881B2  
JPS5227241B2
Air is circulated through a body of wood chips at a rate sufficient for maintaining a uniform temperature and oxygen content throughout the body of wood chips. Fresh air is supplied at a rate sufficient for keeping the oxygen content of ...  
JPS5281103A  
JPS5217121B2  
JPS51149902A
An apparatus and method for impregnating fiber material with treatment liquid before treatment thereof in a high pressure vertical fiber material treatment vessel. Fiber material and treatment liquid under relatively low pressure flow in...  
JPS5146162B2  
JPS5145681B1  
JPS5140187B2  
JPS5136801B2  
JPS5196501A  
JPS5196503A
Waste wood, such as stumps and snag, is treated to make it suitable for the production of paper pulp, whereby the raw waste wood is initially crushed so that part of the bark, sand and stones attached to the wood is detached at this stag...  
JPS5120603B2
1452615 Pulping wood with oxygen MO OCH DOMSJO AB 26 Oct 1973 [27 Oct 1972] 50025/73 Heading D2W In a method of pulping wood with a digestion liquid of pH 7-9 in the presence of oxygen, at least some of the digestion liquid is removed fr...  
JPS5123681Y2  
JPS5119481B2  
JPS5113523Y2  
JPS5138505A  
JPS5126303A
1501456 Pulp manufacture INTERNATIONAL PAPER CO 6 Feb 1975 [12 Aug 1974] 5048/75 Heading D2W A process for manufacturing pulp from cellulosic material comprises 1) subjecting the latter to an alkaline pretreatment, 2) treating the pretre...  
JPS50142801A  
JPS5094203A  
JPS5053603A
A method and apparatus for continuously hydrolizing finely comminuted cellulosic fiber material and separately extracting the acid hydrolysate therefrom. Cellulosic material is fed into an upright elongated reaction vessel near the upper...  
JPS49135341A  
JPS4961404A  
JPS4958461A  
JPS4958460A  
JPS498801B1  
JPS494001B1  
JPS4892602A  
JPS4887101A  
JPS4833406B1
1298745 Pulping apparatus R B REINHALL 22 Jan 1970 [17 Feb 1969] 3188/70 Heading D2W Pulp is produced from finely comminuted material such as sawdust or chopped grass, straw or bagasse by passing the material through a floation separator...  
JPS4830961B1  
JPS4829801B1  
JPS4737521Y1  
JPS4311441Y1  

Matches 651 - 689 out of 689