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1. WO2021037033 - METHOD FOR SOLID WASTE MODIFICATION OF PAPERMAKING SLUDGE AFTER INCINERATION TO BE USED AS PAPERMAKING FILLER

Publication Number WO/2021/037033
Publication Date 04.03.2021
International Application No. PCT/CN2020/111165
International Filing Date 26.08.2020
IPC
D21H 17/01 2006.01
DTEXTILES; PAPER
21PAPER-MAKING; PRODUCTION OF CELLULOSE
HPULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C, D21D84; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G97; PAPER NOT OTHERWISE PROVIDED FOR
17Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
01Waste products, e.g. sludge
D21H 17/67 2006.01
DTEXTILES; PAPER
21PAPER-MAKING; PRODUCTION OF CELLULOSE
HPULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C, D21D84; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G97; PAPER NOT OTHERWISE PROVIDED FOR
17Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
63Inorganic compounds
67Water-insoluble compounds, e.g. fillers or pigments
CPC
D21H 17/01
DTEXTILES; PAPER
21PAPER-MAKING; PRODUCTION OF CELLULOSE
HPULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
17Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
01Waste products, e.g. sludge
D21H 17/67
DTEXTILES; PAPER
21PAPER-MAKING; PRODUCTION OF CELLULOSE
HPULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
17Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
63Inorganic compounds
67Water-insoluble compounds, e.g. fillers, pigments
Applicants
  • 华南理工大学 SOUTH CHINA UNIVERSITY OF TECHNOLOGY [CN]/[CN]
Inventors
  • 樊慧明 FAN, Huiming
  • 宋合龙 SONG, Helong
  • 刘建安 LIU, Jianan
  • 张永利 ZHANG, Yongli
  • 谢可欣 XIE, Kexin
Agents
  • 广州粤高专利商标代理有限公司 YOGO PATENT & TRADEMARK AGENCY LIMITED COMPANY
Priority Data
201910791049.626.08.2019CN
Publication Language Chinese (ZH)
Filing Language Chinese (ZH)
Designated States
Title
(EN) METHOD FOR SOLID WASTE MODIFICATION OF PAPERMAKING SLUDGE AFTER INCINERATION TO BE USED AS PAPERMAKING FILLER
(FR) PROCÉDÉ DE MODIFICATION DE DÉCHETS SOLIDES DE BOUES ISSUES DE LA FABRICATION DE PAPIER APRÈS INCINÉRATION POUR UTILISATION EN TANT QUE CHARGE DANS LA FABRICATION DE PAPIER
(ZH) 一种造纸污泥焚烧后固废改性用作造纸填料的方法
Abstract
(EN)
Disclosed in the present invention is a method for solid waste modification of papermaking sludge after incineration to be used as a papermaking filler. The papermaking sludge mainly comprises the following types: deinking sludge, sludge produced in pulping and papermaking process, sludge produced in pulping and papermaking wastewater treatment, sludge produced in domestic wastewater treatment, and the like. The specific preparation process is as follows: firstly, one or more of the papermaking sludge is incinerated to obtain papermaking sludge ash; the papermaking sludge ash and calcium hydroxide are stirred and mixed, and then carbon dioxide and an air mixed gas are introduced for carbonization modification to obtain a composite papermaking filler. The composite papermaking filler prepared in the present invention meets the filling performance of paper, and also realizes the high-value resource utilization of such solid waste sludge.
(FR)
La présente invention concerne un procédé de modification de déchets solides de boues issues de la fabrication de papier après incinération à être utilisés en tant que charge dans la fabrication de papier. Les boues issues de la fabrication de papier comprend principalement les types suivants : boues de désencrage, boues produites dans un procédé de dépulpage et de fabrication de papier, boues produites dans un traitement des eaux de dépulpage et de fabrication de papier, boues produites dans un traitement des eaux usées domestiques, et analogues. Le procédé de préparation spécifique est le suivant : tout d'abord, une ou plusieurs desdites boues de fabrication de papier sont incinérées pour obtenir des cendres de boues issues de la fabrication de papier ; les cendres de boues issues de la fabrication de papier et de l'hydroxyde de calcium sont agités et mélangés, puis du dioxyde de carbone et un gaz mélangé à l'air sont introduits pour une modification de la carbonisation afin d'obtenir une charge composite pour la fabrication de papier. La charge composite pour la fabrication de papier préparée selon la présente invention répond aux performances de charge du papier, et réalise également une valorisation des ressources de ces boues de déchets solides à valeur élevée.
(ZH)
本发明公开了一种造纸污泥焚烧后固废改性用作造纸填料的方法。所述造纸污泥主要包含以下种类:脱墨污泥、制浆造纸过程产生污泥、制浆造纸废水处理产生污泥以及生活废水处理产生的污泥等。具体制备过程如下:先将一种或者多种上述的造纸污泥,经过焚烧处理后,得到造纸污泥灰;将所述的造纸污泥灰与氢氧化钙搅拌混合,接着通入二氧化碳和空气混合气体进行碳化改性,得到一种复合造纸填料。本发明制备的复合造纸填料,不仅满足于纸张的加填性能,而且实现了这类固废污泥的高值化资源化利用。
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