EP0438385A1 - Procedure and additive for preventing clogging of a handling process of dry cellulose-containing material - Google Patents

Procedure and additive for preventing clogging of a handling process of dry cellulose-containing material Download PDF

Info

Publication number
EP0438385A1
EP0438385A1 EP91850007A EP91850007A EP0438385A1 EP 0438385 A1 EP0438385 A1 EP 0438385A1 EP 91850007 A EP91850007 A EP 91850007A EP 91850007 A EP91850007 A EP 91850007A EP 0438385 A1 EP0438385 A1 EP 0438385A1
Authority
EP
European Patent Office
Prior art keywords
additive
antistatic agent
procedure
dry
handling
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP91850007A
Other languages
German (de)
English (en)
French (fr)
Inventor
Kyösti Orre
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Alko Oy AB
Original Assignee
Alko Oy AB
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Alko Oy AB filed Critical Alko Oy AB
Publication of EP0438385A1 publication Critical patent/EP0438385A1/en
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP 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
    • D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F9/00—Complete machines for making continuous webs of paper

Definitions

  • the present invention concerns a procedure for preventing clogging in connection with a handling process, e.g. grinding, mainly of dry cellulose or equivalent, in particular in the manufacturing of paper or equivalent by the dry process or in connection with other further processing. Furthermore the invention concerns an additive for use mainly in connection with a handling process, e.g. grinding, of dry cellulose or equivalent to prevent clogging of the process.
  • the structure of dry cellulose is disintegrated and the cellulose is ground, whereafter the dry fibre material is conducted through a screen and/or a drum to enter the paper forming process.
  • Cellulose is usually supplied in the form of sheets, and these sheets are shredded or ground, for instance in a hammer mill.
  • the cellulose particles tend to cause clogging of the process; the cellulose particles which are formed, i.e., dry and flutty fibres and fibre bundles, present poor travelling characteristics.
  • fibres and fibre bundles tend to adhere to the process appparatus, e.g. to the hammer mill and to the walls of its hopper, to screens, etc.
  • the object of the present invention is to eliminate the above-mentioned drawback. It is a particular object of the invention to present a novel procedure, and additive, for preventing clogging of a dry cellulose handling process, e.g. grinding thereof.
  • the invention is based on the fact noticed in research that the travelling characteristics of dry and fluffy cellulose fibres and fibre bundles or equivalent can be substantially improved ny adding in conjuction with the respective process, that is e.g. to the cellulose sheets, fibres or fibre bundles, an antistatic agent.
  • Antistatic agent can be added e.g. by spraying it on the material to be treated, such as e.g. on cellulose sheets, fibres, fibre bundles, and/or on the process equipment, such as a grinding apparatus and/or other pieces of process equipment in conjuction with the grinding apparatus, such as the supply hopper, etc.
  • the antistatic agent is liquid or gaseous, and it contains advantageously, in addition to an antistatic chemical, as carrier substance e.e. water; proportion of antistatic chemical e.g. 1 to 20%, suitable 4 to 16%.
  • the antistatic agent may furthermore contain e.g. ethanol (possibily denatured) or another alcohol, e.g. 2 to 40%, advantageously 5 to 30%.
  • the antistatic agent may contain e.g. glycol, such as propylene glycol e.g. 1 to 10%, advantageously 3 to 7%.
  • the antistatic agent may be anionic, cationic or non-ionic.
  • the following may be mentioned as examples: polyamines, quaternary nitrogen compounds, alkyl dimethyl-benzylammonium halides, e.g. chlorides.
  • the invention and by its aid, it has been possible to prevent most efficiently the clogging of the cellulose grinding process mainly in connection with the grinding of dry cellulose or equivalent.
  • the antistatic agent removes from the dry cellulose particles their static electricity, which appears to be the most significant cause of clogging.
  • the additives such as ethanol and glycol, improve the handling properties of the respective additive and/or its anti-clogging properties.
  • the procedure and/or additive of the invention is applicable in connection with handling processes od dry cellulose and other dry fibre material containing cellulose, e.g. of wood fibres and lignocellulose fibres on the whole, for preventing clogging of the process and improving the handling characteristics and/or passage properties of the fibres.
  • the procedure and/or additive of the invention can be used in connection with any fibrous material handling process, such as grinding, transporting, screening or other separation, web-forming from dry fibres, handling and transport of a web formed of dry fibres, etc.
  • the procedure is further applicable e.g. in connection with the dry process of paper or equivalent products, as gas been described in the foregoing, and or in connection with the wet process of paper and equivalent product, e.g. when grinding dry cellulose to be suspended to produce pulp sludge in conventional manner.
  • a dry paper process in which the procedure and additive are particularly advantageous has for instance been described in the article Paper Without Water, Pirinen, M., News on Finnish Technology 2/90.
  • Fig. 1 illustrates, by a schematic diagram, the use of the procedure and additive in a dry process for manufacturing paper products.
  • the hopper of the hammer mill tended to become clogged from time to time by effect of dry cellulose particles.
  • antistatic agent containing 8% polyamine condensate and 10% ethanol, the rest water. Through the influence of this antistatic agent clogging no longer occurred in the process.
  • Fig. 1 is depicted a plant process for paper manufacturing by the dry process.
  • the cellulose raw material 1 is conducted into a hammer mill 2, where the cellulose material is disintegrated to fibres.
  • the fibres are conducted onto a wire 3 with the aid of a drum forming means 4, to constitute a web 5.
  • drum formers e.g. two of them 4,42, over the endless wire circulating supported by rolls 6.
  • bonding agent e.g. latex
  • the web that has been formed is carried to a drying section 8, where the latex bonds the web to become a paper-like product, such as paper or cardboard, to be conducted onto a reel 9.
  • the process depicted in Fig. 1 includes spray nozzles 10 and 11 for spraying antistatic agent into the hammer mill, and similarly into the drum former, in order to prevent clogging of the hammer mill and former and to improve the handling and passage properties of the fibres.
  • spray nozzles 10 and 11 for spraying antistatic agent into the hammer mill, and similarly into the drum former, in order to prevent clogging of the hammer mill and former and to improve the handling and passage properties of the fibres.
  • the process depicted in Fig. 1 may further comprise e.g. screen or other separating means, disposed e.g. between the hammer mill and the former.
  • the fibre fraction passing through the separating means, meeting the desired specifications, is then conducted to the former, while the coarser fibre fraction may be returned to the hammer mill.
  • the screen indicated with interrupted lines, reference numeral 12, may equally be provided with spray nozzles 10 or with other means for adding antistatic agent to the process for preventing clogging of the fibrous material and for improving the passage properties of the fibres.
  • GAF Alkamuls SML (sorbitan monolaurate), Alkaphos B6-56A (phosphate ester), Alkaquat C (quaternary imidazole), Alkaquat DAPT (quaternary fatty acid), Alkaquat DMB-ST (stearyl-dimethylbenzylammonium chloride), Alkaquat O (quaternary diolein imidazole), Alkaquat T (quaternary imidazole);
  • Antistat 680 (quaternary ammonium compound);
  • Antistatic Agent 273-E bis-2-hydroxyethylstearylamine
  • Antistatic Agent 273-C bis-2-hydroxyethylcocamine
  • Armostat 100V quaternary ammonium salts
  • Armostat 310, 410 tertiary ethoxylated amine
  • Armostat 375, 450, 475 tertiary ethoxylated amine
  • Armostat 550 tertairy ethoxylated amine
  • Lyndal Aston 01 (imidazoline);
  • ICI Americas Inc. Atmer 122, 125 (monoglyceride), Atmer 129 (monoglyceride), Atmer 163 (monoglycerides);
  • Capstat (quaternary alkylammoniumethylsulphate);
  • Chemax Inc. Chemstat 122/60DC, 182/67DC (bis(2-hydroxyethyl)alkylamine), Chemstat 122, 172 (bis(2-hydroxyethyl)alkylamine), Chemstat 182 (bis(2-hydroxyethyl)alkylamine), Chemstat 192 (bis(2-hydroxyethyl)alkylamine);
  • CPH-376N polyoxyethylene laurate
  • Cyastat R LS ((3-lauramidopropyl)trimethylammonium methylsulphate), Cyastat R SP (stearamidopropyldimethyl- ⁇ -hydroxyethylammonium-dihydrogen nitrate), Cyastat R 609 Antistatic Agent (N-N-bis(2-hydroxyethyl)-N-(3′-dodecyloxy-2-hydroxypropyl) methylammonium methosulphate);
  • Dacospin HS arylphenol
  • Dacospin PE-146 phosphatized aliphatic alcohol
  • Dacospin 092 quaternary imidazole sulphate
  • Dehyquart E hydroxyhexadecyldimethylhydroxyethylammonium chloride
  • Emcol R CC-9 polypropoxy-quaternary ammonium chloride
  • Emcol R CC-55 polypropoxy-quaternary ammonium acetate
  • Emphos TR PS-220, PS-236, PS-400 organic phosphate esters
  • Genamin KDM-F alkyltrimethylammonium chloride
  • Hall Co. Hallco Antistat C-1047 (laurate ester), Hallco R C.7065 (polyoxyethylene laurate);
  • Croda Inc. Incromectant AQ (acetamidopropyltrimonium chloride), Incrosoft S-75 (imidazolinium methosulphate), Incrosoft S-90 (imidazolinium methosulphate), Incrosoft S-90M (imidazolinium methosulphate), Incrosoft T-75 (imidazolinium methosulphate), Incrosoft T-90 (imidazolinium methosulphate);
  • Laporte Inc. Laponite R XLS (synthetic sodium-magnesium silicate);
  • Larostat 88 (soy dimethylethylammonium ethosulphate), Larostat 143 (oleyldimethylethylammonium ethosulphate), Larostat 264A, 264 (soy dimethylethylammonium ethosulphate), Larostat 264A Anhydrous (soy dimethylethylammonium ethosulphate), Larostat 300 (potassium alkylphosphate ester), Larostat 300A (alkylphosphate ester), Larostat 377 DPG (alkyldimethylethylammonium ethosulphate), Larostat 451 (stearyldimethylethylammonium ethosulphate);
  • Lipo Chemicals Inc. Lipoquat C 25 (quaternized alkylamine ethoxylate), Lipoquat R (quaternized ricinoleinic acid);
  • Michel XO-24 (amine), Michel XO-85 (amine). Michel XO-108 (amine);
  • Miranol Inc. Miranol Ester PO-LM4 (oligomeric polyester), Miranol R DM, DM Conc. 45% (monocarboxyl-stearine derivative, sodium salt), Mirapol R A-15 (polyquaternary ammonium chloride), Mirapol R AD-1 (polyquaternary ammonium chloride), Mirapol R 9 (polycationic copolymer), Mirapol R 95 (polycationic copolymer), Mirapol R 175 (polycationic copolymer);
  • Mona Industries Inc. Monafax 785, 786 (phosphate ester), Monastat 1195;
  • Lyndal Inc. Phosfac 1001 (organic phosphate ester), Phosfac 1044 FA, 1044, 1006, 1066, 1066FA (organic phosphate ester);
  • Sandoz Chemicals Corp. Sandin EU (sulphonated hydrocarbon), Sandin VU (sulphonated hydrocarbon), Sandotex A amine);
  • Tomah Products Tomah Q-14-2 (quaternary amine), Tomah Q-18-3-50% quaternary amine);
  • Union Carbide Corp. Union Carbide R Y 9567, T 9794 (organosiliconic compound);
  • Varstat K22, T22 bis-hydroxyethylalkylamine
  • Varstat 10 ethoxylated alcohol
  • Varstat 55 ethyl-bis-(polyhydroxyethyl)alkylammoniumethylsulphates
  • Taiwan Surfactant Corp. Albumine 230 (N-alkyldimethylammonium chloride), Albumine 280 (stearyldimethylbenzylammonium chloride), Abluphat LP (sodium salt of phosphate ester), Abluphat LPF, LPl, LFX (free acid of phosphate ester);
  • ICI Atmer 122, 123, 126, 128, 129 (glycerol ester), Atmer 151 (alkoylated alcohol), Atmer 1454 (alkoxylated fatty acid ester). Atmer 160 (quaternized amine ethoxylate), Atmer 163 (alkoxylated fat amine), Atmer 172, Atmer 190 (alkylsulphonate);
  • Cithrol A polyglycol oleate
  • Pulcra Sa Crafol AP-12 (oleate-5-phosphate), Crafol AP-31, AP -33, AP 34 (potassium salt of phosphate ester), Crafol AP-36 (DEA salt of phosphate ester), Crapol AU-31 (quaternary dialkylimidazole);
  • Croda Surfactnats Ltd. Crillet (POE-sorbitan esters), Crodafos (alkylether phophates), Crodamet (POE amines), Croduret (POE-hydrogenated oil);
  • Witco SA Emcol CC 55, CC 57 (polypropoxylated quaternary ammonium phosphate);
  • Akzo Chemicals BV Ethoquad C/12, O/12 (ethoxylated quaternary ammonium compound);
  • Pulcra SA Etilenox KM Series (polyoxyethylene alkylamine);
  • Henkel-NOPCO S.A. Kerensim L 10 P (alkylpolyethhoxy esters and ethers);
  • Kerostat R 5009 salts of aminocarboxylic acids
  • Lubrol 17 A-17 fat-alcohol ethoxylate oxide condensate
  • Pulcra SA Niox KQ-20, KQ-22, KQ-52, KQ-53, KQ-54 (ethoxylated fat oxoalcohol), Niox KQ-55, KQ-56, KQ-70, KQ-80, KQ-81 (ethoxylated fat oxoalcohol);
  • Nissan Cation SA octadecylamine acetate
  • Nissan Elegan S-100 Nissan New Elegan A.
  • ASK Nissan Elegan S-100;
  • Pulcra SA noisy AK-43, AK-45 (polyethylene fatty acid ester);
  • Ceca SA Noxamium S2/50 (ammoniumquaternary derivatives of ethoxylated amines);
  • Quadrilan AT quaternary ammonium salt
  • Synfina-Oleofina S.A. Radiamine 6140 (primary amine), Radiaquat (dialkyldimethyl-quaternary ammonium chlorides), Radiasurf (esters of fatty acids and poly-alcohols, and ethoxylated sorbitol esters);
  • Rewo Chemische Werke GmbH Rewoquat CPEM (N-methyl-N-(pentathoxy)-N-cocoammonium methosulphate);
  • Servo Chemische Fabriek Serdox NSG 400 (sterylpolyglycerol ester), Servamine KAC 412 (N-gluco-N,N,N-trimethylammonium chloride), Servoxyl VPI 55 (phosphate ester);
  • ICI PLC Synprolam 35 DMBQC (C12-C15-alkyldimethylbenzylammonium chloride), Synprolam 35 MX 1, 35 MX 3, 35 MX 5 (C13-C15-alkylmethylpolyethoxylated amines), Synprolam 35 MX 10, 35 MX 15, (C13-C15-alkylmethylpolyethoxylated amines), Synprolam 35 MX 1QC (C13-C15-alkylmethylpolyethoxylated amines), Synprolam 35 N3X3, 35 N3X5, 35 N3X10 (C13-C15-alkylmethypolyethoxylated propanidamine), Synprolam 35 N3X15 (C13-C15-alkylmethypolyethoxylated propanidamine), Synprolam 35 TMQS (C13-C15-alkyltriemethylammonium methosulphate), 35X 2, 35X 5, 35X10,
  • Texnol IL alkylimidazoline laurate
  • Texanol SPT Texanol SPT

Landscapes

  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
EP91850007A 1990-01-12 1991-01-11 Procedure and additive for preventing clogging of a handling process of dry cellulose-containing material Withdrawn EP0438385A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI900191 1990-01-12
FI900191A FI86206C (fi) 1990-01-12 1990-01-12 Foerfarande och tillaeggsaemne foer att hindra tilltaeppning av en behandlingsprocess.

Publications (1)

Publication Number Publication Date
EP0438385A1 true EP0438385A1 (en) 1991-07-24

Family

ID=8529698

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91850007A Withdrawn EP0438385A1 (en) 1990-01-12 1991-01-11 Procedure and additive for preventing clogging of a handling process of dry cellulose-containing material

Country Status (3)

Country Link
EP (1) EP0438385A1 (fi)
CA (1) CA2034070A1 (fi)
FI (1) FI86206C (fi)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995034716A1 (en) * 1994-06-15 1995-12-21 Eka Chemicals Ab Method for producing cellulose pulp and use of a compound in the method

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB769231A (en) * 1953-12-23 1957-03-06 Philips Electrical Ind Ltd Improvements in or relating to a method of preventing a sound record from being charged electrostatically
US4118832A (en) * 1976-09-13 1978-10-10 Scott Paper Company Method for minimizing the accumulation of static charges on fibers resulting from fiberization of pulp lap sheets

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB769231A (en) * 1953-12-23 1957-03-06 Philips Electrical Ind Ltd Improvements in or relating to a method of preventing a sound record from being charged electrostatically
US4118832A (en) * 1976-09-13 1978-10-10 Scott Paper Company Method for minimizing the accumulation of static charges on fibers resulting from fiberization of pulp lap sheets

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
ABSTRACT BULLETIN OF THE INSTITUTE OF PAPER CHEMISTRY. vol. 44, no. 4, October 1973, APPLETON US page 372 A.E.GUSHCHIN: "Generation of static electricity during sheet formation by the dry process." *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995034716A1 (en) * 1994-06-15 1995-12-21 Eka Chemicals Ab Method for producing cellulose pulp and use of a compound in the method

Also Published As

Publication number Publication date
CA2034070A1 (en) 1991-07-13
FI86206B (fi) 1992-04-15
FI900191A0 (fi) 1990-01-12
FI900191A (fi) 1991-07-13
FI86206C (fi) 1992-07-27

Similar Documents

Publication Publication Date Title
CA1120205A (en) Method of producing glass mats using novel glass fiber dispersion composition
SU1701117A3 (ru) Способ обезвоживани бумажной массы
AU702067B2 (en) The use of agents in the manufacture of pulp and paper
US4361465A (en) Glass fibers with improved dispersibility in aqueous solutions and sizing composition and process for making same
US4179331A (en) Glass fiber dispersions for making uniform glass fiber mats by the wet-laid process
GB1131919A (en) Production of non-woven fabric by a dry process
US4370169A (en) Aqueous dispersion of glass fibers and method and composition for producing same
CA1118292A (en) Method of encreasing the strength of wet glass fiber mats made by the wet-laid process
US20050263080A1 (en) Absorbent material for animal bedding
EP0517360A1 (en) Prevention of stickies in papermaking
EP0282571A1 (en) METHODS AND APPARATUS FOR PRODUCING ANTISTATIC PAPER OR STATIC ENERGY DISSIPATOR, PAPER PRODUCTS THUS OBTAINED.
JP2019500561A (ja) セルロース系断熱材およびその製造方法
EP0438385A1 (en) Procedure and additive for preventing clogging of a handling process of dry cellulose-containing material
US3067087A (en) Manufacture of paper of organic hydrophobic fibers
US5928472A (en) Paper web and process for making the same
EP0003475A1 (en) Manufacture of uniform glass mats by the wet-laid process, a glass-fiber dispersion used in this process and coated glass fibers
US2614655A (en) Filter material
US3567574A (en) Composition and method for reducing foaming and soda losses in the recovery of fibrous particles from aqueous media
US3111719A (en) Fiber opener and cleaner
US20030039818A1 (en) Treatment for improving cellulose insulation
US3833467A (en) Modification of clay to improve electrostatic deposition
CH647544A5 (de) Waesche-reinigungsartikel.
CN102812183A (zh) 生产纤维素纤维幅的方法
US5409574A (en) Propoxylated fatty amine ethoxylate surfactants as glass fiber dispersants for the manufacture of uniform glass fiber mats
JPH11503497A (ja) 製紙システムにおける堆積を抑制するための処理

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH DE DK ES FR GB GR IT LI LU NL SE

17P Request for examination filed

Effective date: 19920111

17Q First examination report despatched

Effective date: 19930621

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19940319