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Document Title |
JPH0345147B2 |
A wood chip classifier (12) and classification system (10) in which chips are separated into a plurality of fractions according to chip size in an apparatus having an automatically adjustable hole spacing for first removing from a sample...
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JPH0390689A |
PURPOSE: To readily and efficiently obtain the subject pulp, having high opacity and useful as a raw material for papermaking etc., in high yield by holding a water-insoluble solid inorganic substance in intracellular cavities of an unpu...
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JPH0351385A |
PURPOSE: To efficiently obtain the subject product of good quality in which a desired amount of a polymer is held in intracellular cavities without using an organic solvent by holding a polymer raw material in a specific state in the int...
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JPH038881A |
PURPOSE: To efficiently obtain a raw material for a chemical agent from a ligneous vegetable fiber biomass in a system continuously recycling heat without any environmental pollution by hydrolyzing a lignocellulosic material with a satur...
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JPH0258397B2 |
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JPH02503086A |
Disclosed are tetraphenyl porphyrins which are beta-substituted by fluoro or chloro and/or bear electronegative substituents on the phenyl including one or two water solubilizing substituents. The new porphorins are particularly suitable...
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JPH0240380B2 |
An inexpensive cation exchanger useful in purifying waste water is produced by treating comminuted bark in separate steps with an alkali hydroxide solution of at least 5% by weight, preferably 20-40% by weight, and with 30-75% by weight ...
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JPH02502741A |
(57) [Abstract] Since this gazette is application data in front of an electronic application, the data of an abstract is not recorded.
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JPH02216289A |
PURPOSE: To make a carbohydrate in a pulp not noticeably be destroyed and to facilitate a control by adding black liquor besides white liquor to a countercurrent flow zone in amounts so as to provide a fixed high liquid/wood ratio at the...
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JPH02216290A |
PURPOSE: To suppress the formation of nitrified substance in delignifying and bleaching process by reacting lignocellulosic pulp with a sufficient liquid nitrosating agent in an acidic and oxygen atmosphere under powerful agitating condi...
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JPH02119751A |
PURPOSE: To obtain a cellulose fiber product rich in edible fibers and not practically contg. nutritive substance or ash by carrying out delignification and bleaching with an alkali soln. of a peroxide under specified conditions. CONSTIT...
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JPH02112495A |
PURPOSE: To eliminate the troubles caused by air or gas in the fibrous suspension by using a substitute pump that is equipped with a unit that can remove the gas and air from the fibrous suspension instead of the pulp suspension transpor...
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JPH0214474B2 |
In the continuous manufacture of cellulose pulp it has been found that air often remains in the lignocellulosic material subsequent to steaming the same. These air inclusions cause the lignocellulosic material to float in the cooking liq...
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JPH0280682A |
PURPOSE: To provide a method for sorting wood chips, capable of accurately controlling a pulping process and enhancing the whole capacity of a digester by dividing the flow of the wood chips into four separated flows, independently subje...
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JPH0261190A |
PURPOSE: To improve the physical property and dimensional stability of the subject pulp useful as a paper-making raw material by impregnating a polymer- forming material into the intracellular space of an unfibrillated lignocellulose mat...
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JPH028074B2 |
A process is provided for reducing carbohydrate losses in the sulphate pulping of wood using sodium hydroxide and sodium sulfide, by pretreating the wood in the presence of water with oxygen gas and nitrogen oxide such as NO2 and/or NO a...
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JPH02474B2 |
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JPH0156196B2 |
Apparatus for reacting lignocellulosic material with a gas phase comprising a nitrogen oxide and oxygen under controlled gas pressure in the presence of water, for example, as a pretreatment before an alkaline delignification, comprising...
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JPH01280088A |
PURPOSE: To efficiently obtain modified pulp having excellent sheet forming properties and improved physical properties and dimensional stability by holding, polymerizing and immobilizing a polymer raw material in intracellular cavities ...
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JPH0114355B2 |
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JPS6356359B2 |
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JPS6346198B2 |
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JPS63175188A |
A process for recirculating phenol in a lignocellulosic materials digestion process in which lignocellulosic material is digested with phenol-containing solutions in order to dissolve lignin, characterised in that phenol recirculation is...
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JPS6385194A |
Procedure for the formation of chemical pulp comprising desfibrar (12) partially pieces of wood so that the fiber of such cuts to separate substantially each other, but maintaining a sufficient bond between fiber to preserve the integrit...
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JPS6321993A |
(57) [Abstract] Since this gazette is application data in front of an electronic application, the data of an abstract is not recorded.
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JPS6262194B2 |
A process is provided for heating up wood chips in one or more stages at progressively higher temperatures prior to steaming and pulping in an economical manner at a considerable cost saving; heating the chips in at least a first preheat...
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JPS6257756B2 |
A two-stage process is provided for the conversion of lignocellulosic material, for instance, wood, to cellulose pulp, first oxidizing the lignocellulosic material to form aldonic acid end groups, preferably bound with 1,4-glycosidic bon...
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JPS6231110B2 |
A process is provided for pretreating particulate lignocellulosic material to remove heavy metals and resin without any delignification or defibration, which comprises washing particulate lignocellulosic material; compressing the washed ...
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JPS61258090A |
(57) [Abstract] Since this gazette is application data in front of an electronic application, the data of an abstract is not recorded.
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JPS61258089A |
(57) [Abstract] Since this gazette is application data in front of an electronic application, the data of an abstract is not recorded.
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JPS61194288A |
(57) [Abstract] Since this gazette is application data in front of an electronic application, the data of an abstract is not recorded.
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JPS6122079B2 |
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JPS6183387A |
(57) [Abstract] Since this gazette is application data in front of an electronic application, the data of an abstract is not recorded.
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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...
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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 ...
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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...
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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...
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JPS59204997A |
(57) [Abstract] Since this gazette is application data in front of an electronic application, the data of an abstract is not recorded.
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JPS59192790A |
(57) [Abstract] Since this gazette is application data in front of an electronic application, the data of an abstract is not recorded.
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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...
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JPS59125992A |
(57) [Abstract] Since this gazette is application data in front of an electronic application, the data of an abstract is not recorded.
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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...
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JPS5966588A |
(57) [Abstract] Since this gazette is application data in front of an electronic application, the data of an abstract is not recorded.
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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...
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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: ...
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JPS58219005A |
(57) [Abstract] Since this gazette is application data in front of an electronic application, the data of an abstract is not recorded.
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JPS58180692A |
(57) [Abstract] Since this gazette is application data in front of an electronic application, the data of an abstract is not recorded.
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JPS5847517B2 |
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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 ...
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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...
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