SI3085742T1 - Mešanica kalcijevih karbonatov, ki vsebuje delce površinsko spremenjenega kalcijevega karbonata (mcc) in delce oborjenega kalcijevega karbonata (pcc), ter njena uporaba - Google Patents

Mešanica kalcijevih karbonatov, ki vsebuje delce površinsko spremenjenega kalcijevega karbonata (mcc) in delce oborjenega kalcijevega karbonata (pcc), ter njena uporaba Download PDF

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SI3085742T1
SI3085742T1 SI201530250T SI201530250T SI3085742T1 SI 3085742 T1 SI3085742 T1 SI 3085742T1 SI 201530250 T SI201530250 T SI 201530250T SI 201530250 T SI201530250 T SI 201530250T SI 3085742 T1 SI3085742 T1 SI 3085742T1
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particles
calcium carbonate
mcc
aqueous suspension
pcc
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Dennis Werner
Fritz Lehner
Alain Cremaschi
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Omya International Ag
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Claims (15)

  1. MEŠANICA KALCIJEVIH KARBONATOV, KI VSEBUJE DELCE POVRŠINSKO SPREMENJENEGA KALCIJEVEGA KARBONATA (MCC) IN DELCE OBORJENEGA KALCIJEVEGA KARBONATA (PCC), TER NJENA UPORABA ZAHTEVKI
    1. Postopek za izdelavo vodne suspenzije, ki vsebuje mešanico delcev površinsko spremenjenega kalcijevega karbonata (MCC) in delcev oborjenega kalcijevega karbonata (PCC), vključuje naslednje korake: a) priprava vodne suspenzije površinsko spremenjenega kalcijevega karbonata v delcih (MCC), b) priprava vodne suspenzije oborjenega kalcijevega karbonata v delcih (MCC), c) združitev navedene vodne suspenzije površinsko spremenjenega kalcijevega karbonata v delcih (MCC) iz koraka a) z navedeno vodno suspenzijo oborjenega kalcijevega karbonata v delcih (PCC) iz koraka b) za pridobitev vodne suspenzije, ki je sestavljena iz mešanice površinsko spremenjenega kalcijevega karbonata v delcih (MCC) in oborjenega kalcijevega karbonata v delcih (PCC), in d) odstranjevanje vode iz vodne suspenzije, pridobljene v koraku c) za pridobitev vodne suspenzije, ki je sestavljena iz mešanice površinsko spremenjenega kalcijevega karbonata v delcih (MCC) in oborjenega kalcijevega karbonata v delcih (PCC), pri čemer mešanica vsebuje površinsko spremenjen kalcijev karbonat v delcih (MCC) in oborjen kalcijev karbonat v delcih (PCC) v masnem razmerju (MCC/PCC) od 99 :1 do 50 : 50.
  2. 2. Postopek v skladu z zahtevkom 1, pri čemer je površinsko spremenjen kalcijev karbonat v delcih (MCC) v vodni suspenziji iz koraka a) v bistvu površinsko spremenjen kalcijev karbonat v delcih sferične oblike (bMCC).
  3. 3. Postopek v skladu z zahtevkom 1 ali 2, pri čemer ima površinsko spremenjen kalcijev karbonat v delcih (MCC) v vodni suspenziji iz koraka a) a) srednji premer zrn cf50 od 4 pm do 100 pm, po možnosti od 5 pm do 75 pm, še bolje od 10 pm do 55 pm oziroma še bolje od 15 pm do približno 35 pm, določeno z napravo Malvern Mastersizer, in/ali b) specifično površino BET > 15 m2/g, po možnosti od 20 m2/g do 200 m2/g, še bolje od 30 m2/g do 150 m2/g, oziroma najbolje od 40 m2/g do 100 m2/g, izmerjeno z uporabo dušika in metode BET, in/ali c) distribucijo velikosti delcev dgs/cfeo < 3, še bolje £ 2,9, po možnosti v razponu od 1,4 do 2,9.
  4. 4. Postopek v skladu s katerimkoli od zahtevkov 1 do 3, pri čemer vodna suspenzija površinsko spremenjenega kalcijevega karbonata v delcih (MCC) iz koraka a) vsebuje vsaj eno predelovalno sredstvo v količini do 8 ut. %, po možnosti v količinah od 0,01 ut. % do 5 ut. %, še bolje od 0,05 ut. % do 4 ut. % oziroma najbolje od 0,2 ut. % do 3 ut. % na osnovi skupne suhe teže vodne suspenzije.
  5. 5. Postopek v skladu z zahtevkom 4, pri čemer je izbrano vsaj eno predelovalno sredstvo iz skupine, ki vključuje železov sulfat, železov(lll) sulfat, železov klorid, železov(lll) klorid, aluminijev sulfat, aluminijev klorid in/ali njihove hidrirane oblike, silikate, v vodi topne kationske polimere, v vodi topne amfoterične polimere, v vodi topne neionske polimere in njihove kombinacije.
  6. 6. Postopek v skladu s katerimkoli zahtevkom od 1 do 5, pri čemer ima oborjen kalcijev karbonat v delcih (PCC) v vodni suspenziji iz koraka b) a) srednji premer zrn d50 od 0,1 do 100 pm, po možnosti od 0,25 pm do 50 pm, še bolje od 0,3 pm do 5 pm oziroma najbolje od 0,4 pm do 3 pm, določeno z metodo sedimentacije, in/ali b) specifično površino BET v razponu od 1 do 100 m2/g, po možnosti od 2 do 70 m2/g, še bolje od 3 do 50 m2/g oziroma najbolje od 4 do 30 m2/g, izmerjeno z uporabo dušika in metode BET, in/ali c) distribucijo velikosti delcev cfee/cfeo ^ 3, še bolje £ 3,2, po možnosti v razponu od 3,2 do 4,5.
  7. 7. Postopek v skladu s katerimkoli zahtevkom od 1 do 6, pri čemer ima vodna suspenzija a) površinsko spremenjenega kalcijevega karbonata v delcih (MCC) iz koraka a) in/ali vodna suspenzija oborjenega kalcijevega karbonata v delcih (PCC) iz koraka b) vsebnost trdnih snovi vsaj 5 ut. %, po možnosti od 5 do 60 ut. %, še bolje od 10 do 35 ut. % oziroma najbolje od 15 do 30 ut. % na osnovi skupne teže vodne suspenzije, in/ali b) pridobljena v koraku c) vsebnost trdnih snovi vsaj 5 ut. %, po možnosti od 5 do 40 ut. %, še bolje od 10 do 35 ut. % oziroma najbolje od 15 do 30 ut. % na osnovi skupne teže vodne suspenzije, in/ali c) pridobljena v koraku d) vsebnost trdnih snovi vsaj 15 ut. %, po možnosti od 15 do 50 ut. %, še bolje od 20 do 45 ut. % oziroma najbolje od 20 do 40 ut. % na osnovi skupne teže vodne suspenzije.
  8. 8. Postopek v skladu s katerimkoli zahtevkom od 1 do 7, pri čemer mešanica vsebuje a) površinsko spremenjen kalcijev karbonat v delcih (MCC) in oborjen kalcijev karbonat v delcih (PCC) v masnem razmerju (MCC/PCC) od 95 : 5 do 65 : 35, po možnosti od 90 : 10 do 70 : 30, in/ali b) delce s srednjim premerom zrn d5o od 5 μιτι do 100 pm, po možnosti od 10 pm do 75 pm, še bolje od 15 pm do 50 pm oziroma še bolje od 20 pm do 35 pm, določeno z metodo sedimentacije, in/ali c) delce s specifično površino BET > 5 m2/g, po možnosti od 10 m2/g do 200 m2/g, še bolje od 20 m2/g do 150 m2/g oziroma najbolje od 30 m2/g do 100 m2/g, izmerjeno z uporabo dušika in metode BET, in/ali d) delce z distribucijo velikosti delcev cfee/c/so * 2,0, še bolje £ 2,5, po možnosti v razponu od 2,5 do 3,0.
  9. 9. Vodna suspenzija, ki je sestavljena iz mešanice površinsko spremenjenega kalcijevega karbonata v delcih (MCC) in oborjenega kalcijevega karbonata v delcih (PCC) v masnem razmerju (MCC/PCC) od 99 :1 do 50 : 50, pridobljena v skladu s katerimkoli postopkom iz zahtevkov 1 do 8.
  10. 10. Mešanica površinsko spremenjenega kalcijevega karbonata v delcih (MCC) in oborjenega kalcijevega karbonata v delcih (PCC) v masnem razmerju (MCC/PCC) od 99 :1 do 50 : 50, pridobljena s sušenjem vodne suspenzije iz zahtevka 9.
  11. 11. Uporaba mešanice površinsko spremenjenega kalcijevega karbonata v delcih (MCC) in oborjenega kalcijevega karbonata v delcih (PCC) iz vodne suspenzije iz zahtevka 9 oziroma mešanice iz zahtevka 10 za papir, premaze za papir, toaletni papir, digitalni foto papir, barve, premaze, lepila, plastiko, obdelavo odpadne vode ali v sredstvih za obdelavo odpadne vode.
  12. 12. Uporaba v skladu z zahtevkom 11 kot sredstvo za matiranje barv in premazov.
  13. 13. Uporaba v skladu z zahtevkom 12, pri čemer je sredstvo za matiranje prisotno v količinah od 1 do 10 ut. %, po možnosti od 2 do 7 ut. %, še bolje pa od 3 do 5 ut. %, na osnovi mokre barve.
  14. 14. Uporaba v skladu z zahtevkom 13, pri čemer ima površina posušene barve ali premaza sijaj pri 85° v razponu pod 10, po možnosti od 0,5 do 9,5, še bolje od 1 do 8 oziroma najbolje od 2 do 7,5 pri merjenju v skladu s standardom DIN 67 530.
  15. 15. Papir, toaletni papir, digitalni foto papir, barve, premazi, lepila, plastika ali sredstvo za obdelavo odpadnih voda, ki vsebujejo mešanico površinsko spremenjenega kalcijevega karbonata v delcih (MCC) in oborjenega kalcijevega karbonata v delcih (PCC) vodne suspenzije iz zahtevka 9 ali mešanico iz zahtevka 10.
SI201530250T 2015-04-20 2015-04-20 Mešanica kalcijevih karbonatov, ki vsebuje delce površinsko spremenjenega kalcijevega karbonata (mcc) in delce oborjenega kalcijevega karbonata (pcc), ter njena uporaba SI3085742T1 (sl)

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