HRP20120396T1 - Postupak za dobivanje površinski reaktivnog kalcijevog karbonata koji koristi slabu kiselinu - Google Patents
Postupak za dobivanje površinski reaktivnog kalcijevog karbonata koji koristi slabu kiselinu Download PDFInfo
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- HRP20120396T1 HRP20120396T1 HRP20120396AT HRP20120396T HRP20120396T1 HR P20120396 T1 HRP20120396 T1 HR P20120396T1 HR P20120396A T HRP20120396A T HR P20120396AT HR P20120396 T HRP20120396 T HR P20120396T HR P20120396 T1 HRP20120396 T1 HR P20120396T1
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- 239000002253 acid Substances 0.000 title claims abstract 32
- 238000000034 method Methods 0.000 title claims abstract 23
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 title claims abstract 10
- 229910000019 calcium carbonate Inorganic materials 0.000 title claims abstract 5
- 150000007513 acids Chemical class 0.000 claims abstract 9
- 239000007900 aqueous suspension Substances 0.000 claims abstract 2
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims 9
- 239000000203 mixture Substances 0.000 claims 7
- 150000001450 anions Chemical class 0.000 claims 6
- 239000000725 suspension Substances 0.000 claims 5
- 229910052739 hydrogen Inorganic materials 0.000 claims 4
- 239000001257 hydrogen Substances 0.000 claims 4
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 claims 4
- NBIIXXVUZAFLBC-UHFFFAOYSA-L Phosphate ion(2-) Chemical compound OP([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-L 0.000 claims 3
- 150000004677 hydrates Chemical class 0.000 claims 3
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims 3
- 150000003839 salts Chemical class 0.000 claims 3
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 claims 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims 2
- 229910019142 PO4 Inorganic materials 0.000 claims 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims 2
- 159000000007 calcium salts Chemical class 0.000 claims 2
- 235000019253 formic acid Nutrition 0.000 claims 2
- 150000002431 hydrogen Chemical class 0.000 claims 2
- 239000010452 phosphate Substances 0.000 claims 2
- 229910052708 sodium Inorganic materials 0.000 claims 2
- 239000011734 sodium Substances 0.000 claims 2
- 229910021532 Calcite Inorganic materials 0.000 claims 1
- 235000019738 Limestone Nutrition 0.000 claims 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 claims 1
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 claims 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims 1
- 235000011054 acetic acid Nutrition 0.000 claims 1
- 239000007864 aqueous solution Substances 0.000 claims 1
- 150000001768 cations Chemical class 0.000 claims 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-M dihydrogenphosphate Chemical compound OP(O)([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-M 0.000 claims 1
- XBDQKXXYIPTUBI-UHFFFAOYSA-N dimethylselenoniopropionate Natural products CCC(O)=O XBDQKXXYIPTUBI-UHFFFAOYSA-N 0.000 claims 1
- 239000002270 dispersing agent Substances 0.000 claims 1
- 239000010459 dolomite Substances 0.000 claims 1
- 229910000514 dolomite Inorganic materials 0.000 claims 1
- 239000006028 limestone Substances 0.000 claims 1
- 229910052744 lithium Inorganic materials 0.000 claims 1
- 239000004579 marble Substances 0.000 claims 1
- DUWWHGPELOTTOE-UHFFFAOYSA-N n-(5-chloro-2,4-dimethoxyphenyl)-3-oxobutanamide Chemical compound COC1=CC(OC)=C(NC(=O)CC(C)=O)C=C1Cl DUWWHGPELOTTOE-UHFFFAOYSA-N 0.000 claims 1
- 229910052700 potassium Inorganic materials 0.000 claims 1
- 239000011591 potassium Substances 0.000 claims 1
- 235000019260 propionic acid Nutrition 0.000 claims 1
- -1 salt anion Chemical class 0.000 claims 1
- 239000007787 solid Substances 0.000 claims 1
- 239000000243 solution Substances 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
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Abstract
Postupak za dobivanje površinski reaktivnog kalcijevog karbonata u vodenoj okolini koji sadrži slijedeće korake: a) osiguravanje barem jednog kalcijevog karbonata prirodnog podrijetla (GNCC); b) osiguravanje barem jedne kiseline koja je topiva u vodi; c) osiguravanje plinovitog CO2;d) kontakt navedenog GNCC iz koraka a) sa navedenom kiselinom iz koraka b) i sa navedenim CO2 iz koraka c); naznačen time da: (i) svaka navedena kiselina ili navedene kiseline iz koraka b) imaju pKa veći od 2.5 i manji od ili jednak 7, mjereno kod 20°C, povezano sa ionizacijom njihovog prvog dostupnog vodika, te odgovarajući anion formiran na mjestu ovog prvog dostupnog vodika koji je sposoban formirati kalcijeve soli topive u vodi; (ii) poslije kontakta navedene kiseline ili navedenih kiselina sa navedenim GNCC, dodatno je osigurana barem jedna sol topiva u vodi, koja u slučaju soli koja sadrži vodik ima pKa veći od 7, mjereno kod 20°C, povezano sa ionizacijom prvog dostupnog vodika, te anion soli koji je sposoban formirati kalcijeve soli netopive u vodi. Patent sadrži još 19 patentnih zahtjeva.
Claims (20)
1. Postupak za dobivanje površinski reaktivnog kalcijevog karbonata u vodenoj okolini koji sadrži slijedeće korake:
a) osiguravanje barem jednog kalcijevog karbonata prirodnog podrijetla (GNCC);
b) osiguravanje barem jedne kiseline koja je topiva u vodi;
c) osiguravanje plinovitog CO2;
d) kontakt navedenog GNCC iz koraka a) sa navedenom kiselinom iz koraka b) i sa navedenim CO2 iz koraka c);
naznačen time da:
(i) svaka navedena kiselina ili navedene kiseline iz koraka b) imaju pKa veći od 2.5 i manji od ili jednak 7, mjereno kod 20°C, povezano sa ionizacijom njihovog prvog dostupnog vodika, te odgovarajući anion formiran na mjestu ovog prvog dostupnog vodika koji je sposoban formirati kalcijeve soli topive u vodi;
(ii) poslije kontakta navedene kiseline ili navedenih kiselina sa navedenim GNCC, dodatno je osigurana barem jedna sol topiva u vodi, koja u slučaju soli koja sadrži vodik ima pKa veći od 7, mjereno kod 20°C, povezano sa ionizacijom prvog dostupnog vodika, te anion soli koji je sposoban formirati kalcijeve soli netopive u vodi.
2. Postupak prema zahtjevu 1, naznačen time da je navedeni GNCC odabran iz skupine koja sadrži mramor, kredu, kalcit, dolomit, vapnenac i njihove mješavine.
3. Postupak prema zahtjevu 1 ili 2, naznačen time da navedeni GNCC iz koraka a) ima težinski srednji promjer od 0.01 do 10 µm, te još poželjnije od 0.5 do 2 µm.
4. Postupak prema bilo kojem od zahtjeva 1 do 3, naznačen time da je navedeni GNCC osiguran u obliku vodene suspenzije GNCC.
5. Postupak prema zahtjevu 4, naznačen time da navedena suspenzija ima pH od manje od 11, te još poželjnije od manje od 10.5.
6. Postupak prema zahtjevu 4 ili 5, naznačen time da navedena suspenzija ima sadržaj krute tvari veći od ili jednak 10 % tež., poželjno između 10 % tež. i 80 % tež., poželjnije u rasponu od 16 % tež. do 60 % tež., te čak još poželjnije u rasponu od 16 % tež. do 40 % tež., bazirano na težini suspenzije.
7. Postupak prema bilo kojem od zahtjeva 4 do 6, naznačen time da je navedena suspenzija stabilizirana dodavanjem disperzijskih sredstava.
8. Postupak prema bilo kojem od zahtjeva 1 do 7, naznačen time da navedena kiselina ili navedene kiseline topive u vodi iz koraka b) imaju pKa od između 2.6 i 5.
9. Postupak prema bilo kojem od zahtjeva 1 do 7, naznačen time da navedena kiselina ili navedene kiseline topive u vodi su odabrane iz skupine koja sadrži octenu kiselinu, mravlju kiselinu, propansku kiselinu i njihove mješavine, poželjnije su odabrane iz skupine koja sadrži octenu kiselinu, mravlju kiselinu i njihove mješavine, te je najpoželjnije octena kiselina.
10. Postupak prema bilo kojem od zahtjeva 1 do 9, naznačen time da se navedena kiselina ili navedene kiseline topive u vodi poželjno doziraju u ukupnoj količini koja odgovara barem 1.5 x 10-4 mol atoma vodika u kiselini/m2 GNCC osiguranog u koraku a), poželjnije u ukupnoj količini koja odgovara od 2 x 10-4 do 12 x 10-4 mol atoma vodika u kiselini/m2 GNCC osiguranog u koraku a), te najpoželjnije od 3 x 10-4 do 10 x 10-4 mol atoma vodika u kiselini/m2 GNCC osiguranog u koraku a).
11. Postupak prema bilo kojem od zahtjeva 1 do 9, naznačen time da se navedena kiselina ili navedene kiseline topive u vodi iz koraka b) doziraju u ukupnoj količini koja odgovara 5 do 40 % tež. ekvivalenta čiste kiseline bazirano na težini suhog GNCC osiguranog u koraku a), poželjnije u ukupnoj količini koja odgovara 10 do 30 % tež. ekvivalenta čiste kiseline bazirano na težini suhog GNCC osiguranog u koraku a), te najpoželjnije u ukupnoj količini koja odgovara 15 do 25 % tež. ekvivalenta čiste kiseline bazirano na težini suhog GNCC osiguranog u koraku a).
12. Postupak prema bilo kojem od zahtjeva 1 do 11, naznačen time da je navedena kiselina ili navedene kiseline topive u vodi iz koraka b) osigurane u obliku vodene otopine imaju koncentraciju kiselosti, određenu kao ekvivalentna težina čiste kiseline prema težini ukupne otopine, koja odgovara od 25 do 75 %, te još poželjnije od 40 do 60 %.
13. Postupak prema bilo kojem od zahtjeva 1 do 12, naznačen time da su tijekom koraka d), navedena kiselina ili navedene kiseline iz koraka b) dodane u navedeni GNCC, u jednom ili više koraka, poželjno u jednom koraku.
14. Postupak prema bilo kojem od zahtjeva 1 do 13, naznačen time da je kation navedene kiseline topive u vodi odabran iz skupine koja sadrži kalij, natrij, litij i njihove mješavine, te je još poželjnije natrij.
15. Postupak prema bilo kojem od zahtjeva 1 do 14, naznačen time da je anion navedene kiseline topive u vodi odabran iz skupine koja sadrži fosfat, dihidrogen fosfat, monohidrogen fosfat, oksalat, silikat, njihove mješavine i njihove hidrate, poželjnije iz skupine koja sadrži fosfat, dihidrogen fosfat, monohidrogen fosfat, njihove mješavine i njihove hidrate, te najpoželjnije iz skupine koja sadrži dihidrogen fosfat, monohidrogen fosfat, njihove mješavine i njihove hidrate.
16. Postupak prema bilo kojem od zahtjeva 1 do 15, naznačen time da je anion navedene kiseline topive u vodi doziran u ukupnoj količini koja odgovara barem 5 x 10-5 mol aniona/m2 GNCC osiguranog u koraku a), poželjno u ukupnoj količini koja odgovara 5 x 10-5 do 50 x 10-5 mol aniona/m2 GNCC osiguranog u koraku a), te još poželjnije u ukupnoj količini koja odgovara 10 x 10-5 do 30 x 10-5 mol aniona/m2 GNCC osiguranog u koraku a).
17. Postupak prema bilo kojem od zahtjeva 1 do 16, naznačen time da je navedena u vodi topiva sol(i) dodana u jednom koraku.
18. Postupak prema bilo kojem od zahtjeva 1 do 17, naznačen time da se korak d) i dodavanje navedene kiseline topive u vodi poželjno odvija u reaktoru za miješanje pod uvjetima miješanja koji su potrebni da bi se razvio u osnovi laminarni tok.
19. Postupak prema bilo kojem od zahtjeva 1 do 18, naznačen time da se korak d) i dodavanje navedene kiseline topive u vodi poželjno odvija u vodenoj okolini koja ima temperaturu od iznad 50°C, te poželjno od iznad 60°C.
20. Postupak prema bilo kojem od zahtjeva 1 do 19, naznačen time da je vodena suspenzija koncentrirana nakon koraka d).
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP20090162727 EP2264108B1 (en) | 2009-06-15 | 2009-06-15 | Process to prepare a surface-reacted calcium carbonate implementing a weak acid |
Publications (1)
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| WO2023237396A1 (en) | 2022-06-07 | 2023-12-14 | Omya International Ag | Porous coatings comprising minerals and an oxygen scavenger for improving food shelf life |
| WO2023242363A1 (en) | 2022-06-15 | 2023-12-21 | Omya International Ag | Storage stabilization agent for stabilizing aqueous compositions, process for stabilizing and uses thereof |
| WO2023242276A1 (en) | 2022-06-15 | 2023-12-21 | Omya International Ag | Storage stabilization agent for aqueous home care formulations |
| WO2024083812A1 (en) | 2022-10-18 | 2024-04-25 | Omya International Ag | Liquid infused surface-modified material |
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| JPS5835934B2 (ja) * | 1976-11-02 | 1983-08-05 | 協和化学工業株式会社 | 第２リン酸カルシウム−炭酸カルシウム複合構造体及びその製法 |
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| US4659385A (en) * | 1982-08-23 | 1987-04-21 | Costopoulos Nick G | Building material manufacturing from fly ash |
| SU1198001A1 (ru) | 1983-12-15 | 1985-12-15 | Предприятие П/Я А-7815 | Способ получени гидрофобного карбоната кальци дл наполнени поливинилхлоридных композиций |
| US5043017A (en) | 1990-03-09 | 1991-08-27 | Pfizer Inc. | Acid-stabilized calcium carbonate, process for its production and method for its use in the manufacture of acidic paper |
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| US6083317A (en) * | 1996-11-05 | 2000-07-04 | Imerys Pigments, Inc. | Stabilized calcium carbonate composition using sodium silicate and one or more weak acids or alum and uses therefor |
| CN1242793A (zh) * | 1996-11-05 | 2000-01-26 | 英格瓷国际有限公司 | 用硅酸钠和一种或多种弱酸或矾稳定的碳酸钙组合物 |
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| JP2990261B2 (ja) * | 1997-03-07 | 1999-12-13 | 工業技術院長 | 被覆炭酸カルシウム粒子の製造方法 |
| US5913973A (en) | 1997-07-08 | 1999-06-22 | Ecc International Inc. | Method for producing high solids aqueous acid-resistant calcium carbonate suspensions and product thereof |
| FR2787802B1 (fr) | 1998-12-24 | 2001-02-02 | Pluss Stauffer Ag | Nouvelle charge ou pigment ou mineral traite pour papier, notamment pigment contenant du caco3 naturel, son procede de fabrication, compositions les contenant, et leurs applications |
| FR2852600B1 (fr) * | 2003-03-18 | 2005-06-10 | Nouveau pigment mineral contenant du carbonate de calcium, suspension aqueuse le contenant et ses usages | |
| FR2871474B1 (fr) * | 2004-06-11 | 2006-09-15 | Omya Development Ag | Nouveau pigment mineral sec contenant du carbonate de calcium, suspension aqueuse le contenant et ses usages |
| FR2921568B1 (fr) * | 2007-09-28 | 2014-07-25 | Coatex Sas | Utilisation d'acide phosphorique pour reduire la quantite de dispersant libre, dans un procede de concentration de carbonate de calcium dans l'eau |
| EP2070991B1 (en) * | 2007-12-12 | 2010-09-08 | Omya Development AG | Process to make surface-reacted precipitated calcium carbonate |
| RS52297B (en) * | 2009-06-15 | 2012-12-31 | Omya Development Ag | PROCEDURE FOR OBTAINING SURFACE CARBONATE CALCIUM BY THE APPLICATION OF LOW ACID |
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