CA2034070A1 - Procedure and additive for preventing clogging of a handling process - Google Patents

Abstract

PROCEDURE AND ADDITIVE FOR PREVENTING
CLOGGING OF A HANDLING PROCESS

ABSTRACT OF DISCLOSURE
A procedure for preventing clogging of a pro-cess handling dry cellulose-containing material, antistatic agent being added into the process.
An additive for use in connection with a dry cellulosic material handling process said additive being an antistatic agent.

Description

2 ~ 7 ~

PR~D~ FOR pREv3~r CIDC~-ING OF A ~DLINC PROC!ESS

~e pres~n~ inven~ion ~oncern~ a proceduro for 5 prevent~ng cloggi~g in ~c~nnection with a handli~ pro-ces~:, e~g. grinding, ~aiIlly of dry aellulo~:e o~ equiv-~lent, in par~ r in ~he ma~ufacturing of paper or e~Va~ent by the d~r p~oC:ess or in ~:o~neC~ion Wi~h o~er further proce~:E;ing. Fur~er~ore the. inV6~tion 0 con~erns an adaiti~e for u~e mainly in Connec~:ion wit:h a h~d~g proces~3~ e.~. g~indîng, of dry cellulose or eg;uiv~lent to preven~ c:logging of the proces~i.
In ~c dYy pr'OC~C;33 0~ ElO,pe~ OL~ yLU--duc~, the ~t:ru¢~ur~a of dry ¢ellulo e i~ d~ sintegra~Qd 15 an~ ellulo~e il: qround, wher~after ~he dry fibre material i~i ¢onduc~ed t~rough a screen ;~nd/or a dru~ to enter t:he paper c~r~g proce~:~;. C~ellulo~e ~ sually suppli~d in ~e for~ o ~hee~, and the~e 6heRts 2re sh~edded or ground, for in~ce in a ham~ner mill. ~n 20 conne~ion with the ~;h~edding ~nd gr:Ln~g o~ .sheets the c~ellu3.ose particles ~end to cau~;e ~ g~ of ~h~
e; 1:he ~ellulose p~rticle~3 whicb~ are ~or~Led~ i~e.
dry and flu~ es ana ibre ~und}e~, presen~ poor tra~elling charac~eri~ s. Moreover, $ibr~ and fi~re bund:Les ~end t:o ~dhor~ to the pro~ess appara~us, e~.
~o ~ha h~m~er mill and to ~he wall6 0~ it8 hopper, ~o screens, etc.
The object of ~he pre~nt ~nvention is to . elim~nate the above-~ent~oned drawback. I~ 1~ a part~c-ular ob~ec~ of the invention to present a no~el proce-aure, and additi~e, for preventing clogg~ng o~ a d~y cellulo~e handlin5 pro~e~, e.g. gr~n~ng ~he~eof.
Regarding the features which are characterist-ic o~ ~che inven~ion, reference ~ made ~o t31e ~laim~
35 ~t~on.
The invention is based on th~ fa~t: no~iaea ln research ~at ~he ~aYelling cha~acteri~tlc~: of dry and 2~3~70 flu~y ~ellulo~e fibres 2nd fibre ~undles or equivalent c~n be substan~ially i~proved ~y adding Ln conjunc~ion uith the resp~c~ive proCes~, tha~ .g. to th~ cel-lulose ~hee~6r ~ibres or fi~r~ bundl~s, an ~n~istatic:
agen~.
An$is~afic agen~ can be added e.g. ~y spraying it on the ma~e~ial to ~e ~reat2d, ~uch as e.g. ~n c~1-lulo~:e ~he~ts, fi~res, ~i~re bundl~s, ~d/or on ~e process eq~ipP~e~, UC}l ~ a grinding apparatus ~nd/or ot:her piec:es of procef~ uipmeTl~ in conju~c~ion wi~h the grinding appar~t~s, ~u~ a6 the supply hopper, etc.
The anti6~a~i~ agent i~ uid or gaseous, and i~ contains a~Y~n~ageou~ly, in addition ~o an anti~at-~c ~Pmi~al, as carrier subs~ance ~. water, propor-~ion of anti~tic chemical e~g. ~ tc 20~, ~ui~able 4to 16%. T~e anti~tati~ agent may furthermore contain e.g. ethanol (possibly qen~Nred~ or another al~ohol, e~g. 2 to 4Q%, adv2~geo~ly 5 ~o 30~. Fuxthermore~
~he anti~tatic agent may oontain e.g. glycol, ~uc~ as zo propylene glycol e,g~ 1 to 10~, ~dvan~ageou~ly 3 ~o 7~.
~he a~ tatic agent ~ay be anionic, c~tionic or ~on-ionic. ~he following may ~ mentio~ed as ex~-ples: poly3mlnes, quaternary ~itrogen co~pounds, ~l~yl aimethyl-ben2ylammonium halides, e.g. chlorides.
All perc~n~ages ax~ ~xpressed a~ ~ by weigh~.
Thank~ ~o the inve~ion, and by i~ aid, it h~ ~een poss~le to prevent mo~ efflciently the clog ging of ~he cellulose grLndL~g process mainly in con-neGtion w~h the grin~ing of dry cellulo~ or equiv 1ent~ Obvio~sly, ~he an~i~tatic ag~nt ~emoves fro~ the d~y cellulose parti~le~ the~ static ele~ric-ity, ~ch appears ~o ~e the mos~ ~ignifican~ cause of clogging. The addi~iYes, su~h as ethanol and g7y~ol, impro~e the handllng propertie~ of the respec~iv~ addi-~ive ~ndfor its ~n~i~clogg~g p~operties.
The procedure and/or additive of the inven~ion is ~pplicable i~ connec~ion with handlin~ processes od 20340~

dry cellulos~ and other dry fibr~ mat~rial containing ce~lulose, e.g. of wood fibres and lignoce~lulo~e fi~res an t~e whole, ~or preverlting clogging of the proc~ss and i~provin~ ~he handling ~haracteristics an~or pa~sa~e properties of ~he fibre~.
Furthermore, the proc~dure and~cr dditive of ~he ~nVen~ion czn be used in co~nec~io~ wit~ ~n~ fi-b ou~ erial handling proce~ uch as grlnding, transporting, screeni~ or oth~r separa~ion, web-~orm-ing ~rom dry fibres, handling and transport of a we~~or~ed of ~ry fibre~, e~c. ~he procedur~ i~ f~rther applic~ble e.~. in connec~ion with ~he dry proce~s o~
paper or e~uivalen~ product~, a~ gas been desc~ibed in the fore~oing, and or in connection wi~h the we~ pro-cess of pape~ ~nd equ~valent products, e7g. whe~ ~rind-ing dry cel~ulo~e to be ~u~pended ~o produce pnlp slud~e ~ conYe~ional ~nner. A dry paper process in ~hich th~ procedure and additive are par~icu~arly ad-va~ageous ~a~ for i~8tanae been described ~n the axticle Paper Without Water, Pirine~, ~., New~ on Fin-.
nish ~chnology 2~90.
The ~nvention i~ described in the following ~n detall with ~he ai~ o~ cmbodimen~ exa~ples, wi~hau~
confining the inven~ion to the em~odiment exa~ple pre-25 s~nted and/or to t:he ~ti~it~io age~t. ~entioned.
Fig.. 'L illustrates, by a schsmatic diagr~m, th~ u~ of thl3 pro~dure and ~dditi~re in a dry process for manufactur:Lng pap~r p~odu~s.
Example 1 - In a cellulose ~ill, t~e ~opper of the hammer mill tended to become clogged fro~ time ko ~ime ~y e~fec~ of dry cell~lose part~cles~ In~o t~e process, ma;~ly into Gaid hopper, wa~ sprayed ~ntis~ia ~gen~
con~ining 8% polyamihe con~nsate and 10~ ethanol, ~he re~k wa~er. Throu~ the in~luence of this antista~ic agen~: alogging no lo~ger oacurred in ~he process~
Exa~ple 2 2~3407~

In Fiq. 1 is dapicted a . plant proce~s ~o~
paper manufacturing by t}le ~lry pro¢e6~. q!h~ cellulo:e raw ma~;erial 1 is conducted into a hammer mill 2, where ~ c~llulc; se ~at:erial is disint~rated to ~ es . ~he S ~ e~; are conducted onto a ~ire 3 With ~he ~id of ~
drum ~or~i~g ~ea~s 4, to c:onsti~ut~a a web 5. T~nere m~y }:~e ~everal d~um former~ :L~ ~ucce~:sio~, e.g. ~wo of them 4,0,2, over the endle~:s Wi~e ~i~cula~ing ~upported by rO116 6. ~0 the ~eb thus fo~med iY added honding age~
e.g. latex, by &pread~ng it with ~:he aid of 8p3~y ~os~ l~c 7~ n3~11~, ~c~ w~ ~t h;~e l~o~ ~or~c~a ic o~rr~ed to a drying ~eo~ion 8, where the la~ex ~ond the web to be~ome a paper-iike product, ~uch as paper or c2rdboard, to be conducted on~o a reel g.
~he process d~picted in Fig~ 1 includes sp~ay . nozzle~ lo and 11 for ~prayinS anti~t~ agen~ into ~he hammer ~ill/ and similarly into the drum former, in order to prevent cloggLng o~ the hammer m~l~ a~a fonmer and ~o i~pr~ve ~he ha~dling and pa58~ prop~rtie~ of ao the fi~res~ When using the additivss mentioned in E~ample l, the earlier clogging o~ ~he hz~mer ~ill could be completely aY~ded in the process~
The proce-~s depic~ed ~n Fig. 1 ~ay fur~he~
~o~pr~e e~g. s~r~en or o~h~ s~parating mean~, dis-~S po~ed e.~ ~e~ween the h~mmer mill and ~he forme~. Thefibre frac~ion passing throug~ the ~epara~n~ me~ns, ~e~ng the de~ired spe~f~c~t~on6, i6 then ~ndu~ed ~o ~he former, while ~he coar~er ~ibre ~raction m~y be returned ~o the h~mmer ~ill. The ~re~n, ~nd~cated ~ith ~0 in~errupted lines, reference numeral lZ, may eguall~ be pxovid~d with spray nozzles 10 or wl~ othe~ ~e2n~ ~or ad~ing an~ist~tic ~gent to the process for pre~enting clog~ mg of the fib~ous ~exi~ and for improving the pa~sage proper~ies of the fibres.
I~ the process of Fig. 1 ~ne mag use, e.g~ in the hammer ~ll 2, in the ~eparat~ng means .12, Ln the drum for~ing means 4 or in ~on~unc~io~ with ~he web 15 2~34~70 ~orme~l upon the wir~3 3, e.~ he ~tis~ ag~n~.de-~cribsd in Exa~ple 3 cr ~arther ~elow in Example 3, in order to prevent clogging of the proce~:s ~nd/or to ~-proYe the handling propertiefi o~ ths fibrous materia7.
Ex2mple 3 Commer~ially av~ila~le anti~tatic agents:
~lk2ril ch~m; Cal5 In~. GAF: AlX3mul~ SM~ ~o~
bitan mo~ulaura~e), Alkaphos B6-5~A ~pho~phate e6ter)~
Al~aguat ~ (~uater~ary imidazole~, Alkaquat DAP~ (qua-~ernary f?t~ acid), Al~a~ua~ ~B-ST (te~ryl-aime~hyl-~enzylammo~lum chloride)~ Alkaqua~ O (qua~ern~ry ai-olein imidazole), Alk~qu~ T (quaternary ImiaaZ018);
M~zer Chemical~, ~nc~; Alub~of~ SJ-~ax (poly~mide~, Alubrasol API-5, Alubra~ol FE (ca~ionic polyamide ~al~ ~iX)~ Alu~rasol NSL, Alubra601 OS, Alub-r~ol WI~100~ Alu~raspi~ ~S-lO0 ~at~alcohol alXoxy-la~e~, Alu~xaspin ~S lO0 ~fat/~lc:o~ol aIkoxylate) ~
Al~brasp~ 8A Çonq., ~T~ra~pin PF, Al~b~spin PNA, ~ Produ~ Corp.: A~tista~ E (~uaternary ~it~ogen ~ )und);
l~urel Products Cor~ ista~ 680 (quater-nary ~morli7~m compound):
He~cal Co~ istatic Agent; 273 E (bis-~-~ydroxy~thyls1~ amine), ~n~ist:atic Agent 273-C (bis-2-hydroxy~ylcoc~e~;
A}czo, ~hemical Div.: A~mo~;t;a~ lOOV (~a'ce~
ammon~u~ sal~s), A~mos~a~ 310, 410 (t~3rtiary et:ho~ylat-ed amine~, ~rmosta~ ~7S, 450, 475 ~I:e~i~ry ethoxylated ~m; ne), A~mos~ 550 (~ ry ethoxyla~ed amine~;
~yndal: Aston 01 (imidazoline);
~tort~ Chemical: A~;ton 123 (poly~mine~;
IC:I Amerlaa~; Inc.: A~mer 122, lZ5 (monoglycer-id~), A~:mer 129 (monogl~c~rlde~, Atmer 163 ~monoglyc:er-35 ides);
E.~ U Pon~ De ~amDl~S & CO.: Avi~ex PN (qua-ternized hydroc~ on), Av~ex E lgua~errla~y ~monium 203~)7a salt~, AVi~e~ NA (higher alk~lamine comp~ d), Avitex R
~higher al~lamir.e co~pound):
C~ap~ ~al City Products Co .: C~p~t (quaternary lammoniumet;~yl~:ulP~at~) t 5Union Ca~ide C~orp. ~ owax~ l?EG Se~ies (polye~hylene gl~col~;
Sa~doz Chenical~ orp .: Cerasline :EICA Granules (am:ide complf~):
C~maX Inc.: C~emsta~ 1 22~60D~, 18~/671 10tbis (z-~yd~oxyethyl) al~la~ine~, ChPm-e~ta~ 122, 172 (3bi~(2-hyd~oxye~hyl)alkylamine), Che~ 182 (~ (2-hydroxyethyl)al ~ lamlne), Chemstat 192 ~bis(2-h~dr~xy-ethyl~alkylamine~;
Fine~ex Ino.: ~ordex W (amine de~iv~tive);
15~he C.P. ~ali Co.: CP~-37~N (polyoxyethylene laur~te);
American ~y~namid ~o.: Cyastat~ IS ((3-laur-a~idopropyl~rim~ylammonium methyl~ulp~te~, ~ya-stat~ SP (~tearamidopropyldime~yl-B-hydxoxye~hylamm~-20 niu~ihydrog~n ni~e) r ~ya8t~ 60g A~i~;tatiq Agent(N-N-~is~2-hydrox~ethyl)-~-53'~dodecyloxy-Z-hydroxy-propyl~m~thylammonium methosulph~te~;
XenXel Corp.: ~acosp ~ ~S tary~phenol), ~aco-sp~ P~:-146 (pho~pha~ized al~pha~i~ alaohol~, Dacospin 0~2 (qua~ernary ~midzzole 6~1ph~te), D~hy~ua~t E (~y-drox~hexadecylcl7~ethylhydroxyethylammoniu~ c~lorid~);
Eas~ern Color & Ch~mi~al ~o~p.: Ec~osta~;
Wiltco Co~p.: E~col~ CC-9 ~polypropo~y-~ua~er-nary a~monium ~h}~ride1, Emcol~ ~C-55 tpolypropo~y-~ua-ternary a~moniUm acetate), Emp~o~ PS-220, PS-23~, PS-~00 (oxgan~c pho~pha~e e~er~);
~zo, Chemic~l ~iv.: E~hoquad C12, C~B, ~1315 (gua~ernary ~o~ium ~alts);
~meric~n ~oechst ~orp.: Gen~min X~-F ~alkyl-tximethylammonium o~loride);
The C.P. ~all Co.: ~allco ~ tat C-1047 (la~ra~e es~er), ~ailco~ C~70~5 (polyoxyethylen~ lau-- 2~34~7~

ra~e);
Croda Inc.: Inc:romectant: A~. ~aaetamidopropyl-trimon~ loxide), I~c:ro~:ol~t S-75 (i:midazolini~
me~;hosulpllate), Inorosoft S-90 (~idazoliIlium me~;hosul-5 ph~e), :I:norosoft ~-90DI (imidazol~ni~ me~:hosulpha~e~, osoft T-75 timidazoliniu~ methoslllp~a~e) O Incro-so~ 0 ~7~idazo~ 7Tn me~ho~ulp~at~);
Crompton ~ }~nowales Corp. In~raso~
(c~a~ionic ~a~r acid conden~ation?;
~o ~ m ; ~ l n; t~ ~ ~eti en}~lack E~ oot~;
Iaporte Ina~: ~ap~nit~ X3~S (sy~thetic s~dium-magne~ium sil~
~ zer ~h~lcsal# Inc.: Iaro~;ta~ 88 (soy di-m~yle'chyl~moniu~ e~oæuiphate), I~roætat 1~3 ~oleyl-et~lylet~ylammoni~ t~u~ , ~o~ t; 2G4A~ 2~i~(soy d~nethylethylammoni~ etho~ phate~ ,. ~o~a~ 2~4-A ~ya:~Ous ~&oy dimet~ylq:~yl~monium ~ osulp~ate~, ost~ 300 ~pot:~s~ium al3~;ylpho5pha~ 3tsr), ~ o-300A ~a~kylp~osph~e e~ter~, ~o~ a~ 377 DPG;~0 (alkyldime~hyl~ylammo~um ~thosulp~a~e), Iaros~a~ 451 earyldimethyle~hylammoniu~ e~c)sul~hat:e):
Lipo ~cals }na.; I~pog;u~t: ~ ~S ~ater n~zed a7kylamin~ e~qxylate), ~poqua1; R (~ er~ized riGinolei~ic acid);
~5 M~zer Ch~ic:al~: Inc.: Maphos~ ~6E (phosphate e~;tex), Maphos~ 7~ NA (salt/p~lo~phatic acid ester~ t ~Iaa~en'æ C-Z, C~-5, C-15 ~polyox~e~hylenQ ~occ:amine), Mazee~ S-2, S-5 ~polyo~y~thylene-soy am;LAe), Mazeen~
~-2, ~-5, T-15 (~ t ~mlnes~, M~z~l~ GNO ~ ~glyc~rol ~onooleate~, Mazoline~ OA (f t imid2zole), Mazon JMR-l;
~ .~ichel & Co, rnc.: ~ic~el X0-24 (amine), Mi~he~ X0-$5 (amine). Mich~l X0-108 (~i~e);
Miranol Inc.: ~lranol E~ter ~0 I~4 (oligomeric polyes~er), M~ranol~ D~, D~ ~onc. 45~ (~onocarboxyl-3~ stearine de~i~2ti~e, ~odiu~ ~a}t) t ~rapol~ A-15 (poly-g~2~e~ary ammoniu~ cblor~de)/ ~ polX A~ polygua-t~ary ~m~oniU~ chloxide), Mirapol~ ~ ~polycationic 2~3~7~

oopolymer), Mirapol~ 95 (polyczl~ioniC~ c:opolymer), ~ira-pol:~ 175 (pnlycat.ionic copoly~er);
M~na Industries Inc.: Monafax 785, 786 ~phos phate es~ar), ~o~tat 11~5 ~yndal Inc~: Phosfac: 1001 ~o~ phosphats e~l;er~ -, 3?hosfao 1044 FA, 1044 r 1001;, 1066~ 106ÇFA (o~~
~C p}lQsphate e~ter): .
~en~c~l ~ada ltd.: Polysauar~ polyam~Ile);
Akzo Che3~ic~1~; I)i~.., RD-~07~;
~0 Sandoæ ~hdcals ~orp.: Sandi~ hl~ (~ulphonatea hyd~:ocar~on) ~ Sandi~ V~ tsulphona~ed hyd~oc~ on), San-do~ex A am~ne), Mazer ~he~cals 3nc~.: S l!~aZ~ ~!0 ~sorbi~an monolaura~e~; .
1~ AC~ Inc:.: S~a~icide~;
~ ex~al Corp.~ at~ ~10~/~tistatic (Pi~;~2-~ydroxy~:hyl) oc~:yl-met:hylam:mo~ium~aratolue~e s~lpho-nate~, Agen~ 106~90~;
q~omah Produ~;: Tomah ~-14-2 ~ua~ernary io amine), Tomah ~ 3-50% ~ua~:er~ary amine);
Union Car}:7ide Corp.; ~nio~ Carb~deæ ~ 9~67, 1 ~794 (orgaTlo~illoonit:: co~pou~d);
Sherex Che~ic~l Co. I~.: ~ars~at K22, T2~
hydroxyethyl~lk3rla~ine), Yarstat: 10 (ethoxylated 2~ alcohol), Vaxs~t 55 (e~::hyl-bis-(po~yhydroxyethyl)-al~yl2mmon~u~e~hylsulphates)7 E.I~ ~u ~ont De Nemour~ & Co.: Zelec N~, N~
(al~ohol pho~phat~s), Zelec TY ~alcohol phosp~ates~;
Tai~n Surf~ctant corp.~ Ablumine 230 ~-al-ky~dime~hylammonil~ chloride)~ Al~u~i~e 280 (stearyl~dime~hyl~enzyl2m~onium ~hloride), Ak-~phat LP t~odiu~
sal~ of phosph~e ester~, Abluphat IæF, Læl, IFX ~ree acid o~ pho~ph~e ester);
Cyanamid B.V.: Aero~ol C 61 (alkyla~ineguan~e pol~oxye~hanol~:
~ oho ~hemi~al ~ndu~try Co. ~a . Anstex ~K-25 gpha~phate~

2034~7~

ICI: A~mer 122, 123, 126, 128, 1~9 ~g~ycerol ester~, A~:mer 151 ~al}coxylated alcohol), A~;me.r 1454 (al:koxylat~d fat~y acld e~te~r). Atmer 160 (quaterniz~d ~mine e~ xyl~te~, At}iler 163 ~al3co~ylated fa~ ~ne~, S Al:mer 172, Atmer lgO ~alkylsulphonate) 5 St~parl Europe: ~atigen~ C~ 30/70 (~ ;~eth-ylammo~ium el:hoxysulphate), ~atigene~ ~T ~5 (a}kyl~h-ylammo~ ~oxysulph~e), Catiqene~ S~ 30/70 ~al~1-tri~et~ylammoni~1~ et~oxysulp~ate);
Sanyo Ch~mical ITlduBtri~ac ~d. s mis~t 3500, ~;~20, 5300, 63Q0~ erna~ non~um pol~er), Croda Surfac~t6 h~d.: C~ithrol A (polyglycol olea~
~ ulcra Sa: Crafol ~P-12 (oleate-5-phocphate), 15 Crafol AP-31, AP ~33, AP 3~ (pota~siu~ ~;alt of phos-pha~e ester~ rafol AP-36 ~DEA calt of p~osphate es-~e~), Crapol AU-31 (~uate~a~ry dialkylamidazole), Crod~ Surfac:tants L~ do Cri}~ et; ~POE-~o~bi~n e~:ters), Crodafo~ ~allsyletl2er pho~;phat~3s~, Crodamet 20 (POE amines~, Croduret tPOE-hydro~enated ~il);
Henk~l KG&A~ y~uart LT ~lauryltrimethyl-ammonlum ~hloride~;
~ ao Corp.: ~ec A~, RA, ~ C, ~S2, TS-3, TS-5, TS-~t Elec-2 ~etho~ylated ~at amine), Ele~t~ster ~5 EE-llO, 210, El~c~ma~ter S-52~r LL-10, PP-~O, 320:
Takemo~o Oil ~ Fat Co. ~d~: Elecut S-117;
Wi~ SA: Emcol CC 55, CC 5~ (polypropoxyla~d ~ua~ernary ~monium phosphat~):
Yosh~mura Oil Ch~mi~al Co. ~d.: Ereak PS-~Og talkylamidepropyld~et~yl-Bohydroxye~hylammo~ium ni~
~ra~e):
Ak20 ~hemia~l~ BV: kthoquad C/12, 0/12 teth-oxy7atea gua~ernary ammoniUm co~pound):
Pulcra SA; E~ilenox ~N S~ies (polyoxyethyl~he alXylamine);
~ enkel-NOPCO S.A.S Ker~~ o r ~lkyl~vly et~oxy es~er~ and e~hersj, 2~34070 BaSF A~;: Kerosta~ 5009 (:~1t~ o~ aminocar~
oxylic ac~
~arcro~; ChemiQls t~ I~ited: Lankrostat Ser-i~;
I~on corp.: I~pomin I~ ~ala~e deri~tives~:
ICI h~ r~brol 17 A-17 ( fa~--alcohol e~o~
la~:e oxide condensat~
~enk~l~OPCO S ,. A .: Lu~ostat ~qSQ 3 0 . J~SW 8 8 (a~}?~lne) Pul~ra SA: ~iox RQ--~O, KQ--22, ~Q--5~, KQ--53, X~2--54 (e~hoxylated fa~ oxoalcohol~, ~lox KQ-55, R~-5fi, ~-70, :E~Q-80, K~-81 (~oxyiated ~a~ oxoalco~ol);
Nippon Oil & Fats Co. Ltd.: Nissan ca~lon S~
~o¢~adecyla~nine acetate), Ni~:san Elegan S-100, Nissan l~i 2iew E}egan A. ASR, ~ ;an Elegan S-100;
Pulc:ra SA: Noiax A~-~3, ~R-4~ (polyethylene f2tty aci~ ester);
C~ec~a SA: Noxa~iUm 5~/50 (a~oniUmS~aterna~y deriva~ es of et;hoxylated ;3~i~es);
~Ie~3cel l~G&A: Polyquart ~I 81 ~pc~lyglycol-poly-am:Ln~3 ~ondensate :~e g~); .
Aqua~ec Qu~m~c~ S/A: ~roplast: 05~ ~glycerol es~er);
Hef~i Lt;d~ emical Products: P~;E-600 5poly-eth~lene glyc:ol~, POE-1000 ~polye~hylene ~lycol~, PGE-15W tpblyet~ylene ~lyco ~;
~arcros ~hemi~al5 ~R Lim~ted: ~uadrilan A~
(quaternary a~onium ~3alt) Syrfina-Oleofina S .A.; ~adiamine 6~ 40 (pri~y 3 C amine~, Radiaqua~ (dialk~ me~yl-~uatern~ nnmonit~
chlor~de~ r Radiasur~ (este~s o~ fa~ acid5 8nd poly-al~ohol, and eth~xyla~3d ~:orbitol e~:ers~:
Re~o C~hem;Lsche We;~k~ Rewoquat: CPEM (~-methyl-N-(pentathoxy~ co~oammonium ~etho~ Lph~e);
Sanyo C:hemic~l IndU~;tries I,t~.: Sanstat ~01~-A;
Servo ChP~7;sche Fabrie}c: S~rdox NSG 400 (ster-y}pc: lyglyce~ol ester), Ser~ramine ~AC 412 ~N-gluco-N,NrN-trime~hylammonium c~oride), Servoxyl ~PI S5 ~phosphate ester~;
ao Corporation S.A~: Soluol OM ~<~uaternary S ammonium ~alt);
~schi~ner & Sc~warz: Sul:~o~at ~ (a3nido-al}~la~ne ~e~a~e);
I~2 PI,C; Synp~olam 35 DMBQC (C~ ~--C L~--alkyldi methylbenzylammonium ahloride), Sy~prolam 3 5 MX 1 , }O 35 ~X 3, 35 ~[X 5 (Cl3--C ~--al~yl~et:hylpolyethoxyla~edamines), Synprolam 35 ~ lo, 35 MX 15, (~3-C~ alkyl-~e~hylpolye~xyla~ed a~Lines~ r Synprolam 3S MX l~C
(C~ alkylmethylpolyethos~rlated ~ne$), Synprolam 35 N3X3, 35 N3X5, 3$ N3XlO (~ alkylmsthylpolyeth-oxylated propanidamine~, .Synprolam 35 N3X1$ (~ C~
alJqrlme~ylpolye~ho~l a~ed propanida}nine), Synprol am 35 ~QS (C~-Ca~-all~ltrimethylammoniu~ ~e~ho~;ulphate), 35X 2, 35X 5, 35X10, 35X~5 (C~ al~lmethylpolyeth-oxylat~3d amines), Sy~prolAm 35X lS QS, 35X 20QS, 3sx ~0 2~S, 3S SQS, 35X lO~S (C~3-Cl~-alkylmethylpolye~hoxy-lated metbyl~on;Lum metho~ulpha~e compouhds);
Nippon Nyukazai So~ 3itd.: Te~l IL ~alkyl-im1dazol~e 1~11r~e), Tex~ol SPT~
~he embodimerlt examples are only mea~ ~o illustrate ~he .~n~entidn, wit;hotlt in any ~y res~r~
i~g i~.

Claims (8)

1. A procedure for preventing clogging of a process handling mainly dry cellulose-containing mate-rial and for improving the handling properties of the material, characterized in that antistatic agent is added to the cellulosic material.

2. Procedure according to claim 1, character-ized in that antistatio agent is sprayed into a dry handling process, seleoted from the group: grinder feed means, grinder, conveyor, screen, and fibre web forming process.

3. Procedure according to claim 1 or 2, char-acterized in that antistatic agent is supplied onto the cellulose particles to be ground.

4. Procedure according to any one of claims 1-3, characterized in that the antistatic agent is liquid and contains water and antistatic chemical 1 to 29%, and additive selected from the groups: ethanol 2 to 40% and glycol 1 to 10%.

5. Additive for use in connection with a pro-cess handling mainly dry cellulosic material, in order to prevent clogging of the process and to in prove the handling properties of the material, characterized in that the additive is an antistatic agent.

6. additive according to claim 5, character-ized in that the additive contains water and antistatic chemical 1 to 20%.

7. Additive according to claim 5 or 6, char-acterized in that the additive contains ethanol 2 to 40%.

8. Additive according to any one of claims 5-7, characterized in that the additive contains glycol 1 to 10%.