HRP920928A2 - Water solution of stabilized hydro-peroxide and the process for the stabilization of hydro-peroxide water solution - Google Patents
Water solution of stabilized hydro-peroxide and the process for the stabilization of hydro-peroxide water solution Download PDFInfo
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- HRP920928A2 HRP920928A2 HR920928A HRP920928A HRP920928A2 HR P920928 A2 HRP920928 A2 HR P920928A2 HR 920928 A HR920928 A HR 920928A HR P920928 A HRP920928 A HR P920928A HR P920928 A2 HRP920928 A2 HR P920928A2
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- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 title claims description 58
- 238000000034 method Methods 0.000 title claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title description 4
- 230000006641 stabilisation Effects 0.000 title description 2
- 238000011105 stabilization Methods 0.000 title description 2
- 239000000243 solution Substances 0.000 claims description 35
- 239000002253 acid Substances 0.000 claims description 22
- 239000003381 stabilizer Substances 0.000 claims description 17
- 239000007864 aqueous solution Substances 0.000 claims description 14
- 229910052784 alkaline earth metal Inorganic materials 0.000 claims description 11
- 238000002360 preparation method Methods 0.000 claims description 11
- 239000000203 mixture Substances 0.000 claims description 9
- 150000007513 acids Chemical class 0.000 claims description 8
- 150000003839 salts Chemical class 0.000 claims description 8
- 235000011180 diphosphates Nutrition 0.000 claims description 7
- 238000004061 bleaching Methods 0.000 claims description 6
- WYMDDFRYORANCC-UHFFFAOYSA-N 2-[[3-[bis(carboxymethyl)amino]-2-hydroxypropyl]-(carboxymethyl)amino]acetic acid Chemical compound OC(=O)CN(CC(O)=O)CC(O)CN(CC(O)=O)CC(O)=O WYMDDFRYORANCC-UHFFFAOYSA-N 0.000 claims description 5
- 239000003513 alkali Substances 0.000 claims description 5
- 229920001131 Pulp (paper) Polymers 0.000 claims description 4
- -1 alkaline earth metal pyrophosphate Chemical class 0.000 claims description 4
- XPPKVPWEQAFLFU-UHFFFAOYSA-J diphosphate(4-) Chemical compound [O-]P([O-])(=O)OP([O-])([O-])=O XPPKVPWEQAFLFU-UHFFFAOYSA-J 0.000 claims description 4
- 230000000087 stabilizing effect Effects 0.000 claims description 4
- 239000004753 textile Substances 0.000 claims description 2
- 150000001342 alkaline earth metals Chemical class 0.000 claims 2
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 229940048084 pyrophosphate Drugs 0.000 description 4
- 150000001768 cations Chemical class 0.000 description 3
- 238000000354 decomposition reaction Methods 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 2
- KXDHJXZQYSOELW-UHFFFAOYSA-N Carbamic acid Chemical compound NC(O)=O KXDHJXZQYSOELW-UHFFFAOYSA-N 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 238000002161 passivation Methods 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- WQGWDDDVZFFDIG-UHFFFAOYSA-N pyrogallol Chemical compound OC1=CC=CC(O)=C1O WQGWDDDVZFFDIG-UHFFFAOYSA-N 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910021592 Copper(II) chloride Inorganic materials 0.000 description 1
- 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 description 1
- 229910021578 Iron(III) chloride Inorganic materials 0.000 description 1
- 229910020212 Na2SnO3 Inorganic materials 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- 239000003929 acidic solution Substances 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 239000011149 active material Substances 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000007844 bleaching agent Substances 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 239000003518 caustics Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- ORTQZVOHEJQUHG-UHFFFAOYSA-L copper(II) chloride Chemical compound Cl[Cu]Cl ORTQZVOHEJQUHG-UHFFFAOYSA-L 0.000 description 1
- 238000001784 detoxification Methods 0.000 description 1
- TVQLLNFANZSCGY-UHFFFAOYSA-N disodium;dioxido(oxo)tin Chemical compound [Na+].[Na+].[O-][Sn]([O-])=O TVQLLNFANZSCGY-UHFFFAOYSA-N 0.000 description 1
- 239000012154 double-distilled water Substances 0.000 description 1
- 239000003480 eluent Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000009931 harmful effect Effects 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- 238000009897 hydrogen peroxide bleaching Methods 0.000 description 1
- 238000009854 hydrometallurgy Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 239000005304 optical glass Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000005554 pickling Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000003248 secreting effect Effects 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- FQENQNTWSFEDLI-UHFFFAOYSA-J sodium diphosphate Chemical compound [Na+].[Na+].[Na+].[Na+].[O-]P([O-])(=O)OP([O-])([O-])=O FQENQNTWSFEDLI-UHFFFAOYSA-J 0.000 description 1
- 229940048086 sodium pyrophosphate Drugs 0.000 description 1
- 229940079864 sodium stannate Drugs 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 235000019818 tetrasodium diphosphate Nutrition 0.000 description 1
- 239000001577 tetrasodium phosphonato phosphate Substances 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
- 150000003624 transition metals Chemical class 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Detergent Compositions (AREA)
- Paper (AREA)
Description
Predmetni izum se odnosi na vodene otopine vodik peroksida stabilizirane protiv razlaganja na kisik i vodu pomoću preparata koji sadrži organske stabilizatore iz obitelji aminopolikarboksilnih kiselina. The present invention relates to aqueous solutions of hydrogen peroxide stabilized against decomposition into oxygen and water by means of preparations containing organic stabilizers from the family of aminopolycarboxylic acids.
Postupak stabilizacije vodenih otopina vodik peroksida pomoću takvih stabilizatora opisuje se podjednako u danom izumu. The process of stabilizing aqueous solutions of hydrogen peroxide using such stabilizers is described equally in the present invention.
Poznata je uporaba 1,3-diamino-2-hidroksipropan-N,N,N',N'-tetraoctene kiseline za stabilizaciju perspoja (GB 1383741 (CIBA-GEIGY, AG,)* stranica 1, redovi 44-61*). Ovaj spoj nije međutim stabilan u prisutnosti perspoja i transformira se brzo tijekom skladištenja u dane nascetne proizvode razlaganja koji ne posjeduju više efekt stabilizacije za otopine perspojeva. It is known to use 1,3-diamino-2-hydroxypropane-N,N,N',N'-tetraacetic acid for the stabilization of the compound (GB 1383741 (CIBA-GEIGY, AG,)* page 1, lines 44-61*). This compound is not, however, stable in the presence of percompounds and is rapidly transformed during storage into given nascent decomposition products which no longer have a stabilizing effect for solutions of percompounds.
Izum ima za predmet otopine vodik peroksida efikasno stabilizirane na duže vrijeme ugrađivanjem preparata koji sadrži aminopolikarboksilnu kiselinu. The subject of the invention is hydrogen peroxide solutions efficiently stabilized for a long time by incorporating a preparation containing aminopolycarboxylic acid.
Stoga, izum se odnosi na vodenu otopinu vodik peroksida stabiliziran pomoću preparata koji sadrži smjesu pirofosfata alkalnog ili zemnoalkalnog metala sa stabilizatorom koji pripada klasi aminopolikarboksilnih kiselina, gdje je stabilizator aminopolikarboksilna kiselina kojoj odgovara sljedeća opća formula: Therefore, the invention relates to an aqueous solution of hydrogen peroxide stabilized by means of a preparation containing a mixture of alkali or alkaline earth metal pyrophosphate with a stabilizer belonging to the class of aminopolycarboxylic acids, where the stabilizer is an aminopolycarboxylic acid corresponding to the following general formula:
[image] [image]
gdje x je broj jednak 0, 1 ili 2 i where x is a number equal to 0, 1 or 2 and
y je broj jednak 0, 1 ili 2, y is a number equal to 0, 1 or 2,
ili sol ove kiseline. or a salt of this acid.
Pod vodenom otopinom vodik peroksida, podrazumijevaju se sve vodene otopine vodik peroksida čija je ravnotežna koncentracija između 0,1 i 99 g H2O2/100 g otopine i, poželjno je između 0,5 i 95%. Prikladno, ova otopina može biti otopina komercijalnog vodik peroksida ravnotežne koncentracije između 25 i 70 g H2O2/100 g otopine. By aqueous solution of hydrogen peroxide, we mean all aqueous solutions of hydrogen peroxide whose equilibrium concentration is between 0.1 and 99 g H2O2/100 g solution and, preferably, between 0.5 and 95%. Suitably, this solution may be a solution of commercial hydrogen peroxide with an equilibrium concentration between 25 and 70 g H 2 O 2 /100 g solution.
Najčešće je prikladno da u općoj formuli amonopolikarboksilne kiseline, brojevi x i y budu takvi da njihov zbroj ne prelazi 3 i poželjno ne prelazi 2. Most often, it is convenient that in the general formula of aminopolycarboxylic acid, the numbers x and y are such that their sum does not exceed 3 and preferably does not exceed 2.
Prema drugoj varijanti postupka prema izumu, koja je poželjna, aminopolikarboksilna kiselina koja se upotrebljava je takva da brojevi x i y u danoj formuli su jednaki. According to another variant of the process according to the invention, which is preferred, the aminopolycarboxylic acid used is such that the numbers x and y in the given formula are equal.
Aminopolikarboksilna kiselina koja daje posebno zanimljive rezultate je 1,3-diamino-3-hidroksi-propan- N,N,N',N'- tetraoctena kiselina. Prema jednoj dopunskoj varijanti postupka prema izumu, brojevi x i y opće formule aminopolikarboksilne kiseline su takvi da je jedan od njih nula. U slučaju potrebe, poželjno je da drugi broj bude različit od nule, na primjer jednak 1. An aminopolycarboxylic acid that gives particularly interesting results is 1,3-diamino-3-hydroxy-propane-N,N,N',N'-tetraacetic acid. According to one additional variant of the method according to the invention, the numbers x and y of the general formula of the aminopolycarboxylic acid are such that one of them is zero. If necessary, it is preferable that the second number be non-zero, for example equal to 1.
Prema izumu, soli aminopolikarboksilne kiseline obuhvaćaju soli dobivene supstitucijom atoma vodika jedne ili više od 4 karboksilne skupina aminopolikarboksilne kiselina s kationom metala amonija. Kation metala je poželjano kation alkalnog ili zemnoalkalnog metala. Alkalni metali i amonij su naročito preporučljivi. According to the invention, aminopolycarboxylic acid salts include salts obtained by substitution of a hydrogen atom of one or more 4 carboxyl groups of aminopolycarboxylic acids with an ammonium metal cation. The metal cation is preferably an alkali or alkaline earth metal cation. Alkali metals and ammonium are particularly recommended.
Termin aminokarboksilat označit će ovdje kasnije aminopolikarboksilne kiseline i njihove soli prema izumu. The term aminocarboxylate will denote later aminopolycarboxylic acids and their salts according to the invention.
U preparatima stabilizatora koji odgovaraju izumu, ravnotežna proporcija pirofosfata i aminopolikarboksilata može varirati između 02-4,0 i, poželjno između 0,7-1,3. Odlični rezultati su dobiveni za dani ravnotežni odnos pirofosfat/aminopolikarboksilat jedak 1,0. In the stabilizer preparations according to the invention, the equilibrium proportion of pyrophosphate and aminopolycarboxylate may vary between 0.2-4.0 and preferably between 0.7-1.3. Excellent results were obtained for a given equilibrium pyrophosphate/aminopolycarboxylate caustic ratio of 1.0.
Optimalni sadržaj preparata pirofosfat-aminopolikarboksilat u vodenim otopinama vodik peroksida ovisi o raznim parametrima, kao što je koncentracija otopine u vodik peroksidu, pH i zatim odabranom aminokarboksilatu. The optimal content of pyrophosphate-aminopolycarboxylate preparation in aqueous solutions of hydrogen peroxide depends on various parameters, such as the concentration of the solution in hydrogen peroxide, pH and then the selected aminocarboxylate.
Praktično, opće je poželjno da vodena otopina vodik peroksida sadrži barem 0,5 mg preparata pirofosfata- aminopolikarboksilat na kg otopine, i poželjno ne više od 1500 mg. Poželjni sadržaji idu između 1 i 300 mg. Practically, it is generally preferred that the aqueous solution of hydrogen peroxide contains at least 0.5 mg of the pyrophosphate-aminopolycarboxylate preparation per kg of solution, and preferably no more than 1500 mg. Preferred contents are between 1 and 300 mg.
Izum se neovisno primjenjuje na otopine vodik peroksida, koje su kisele, neutralne ili bazne. Nalazi značajnu prikladnu primjenu za kisele otopine čiji pH je između 2 i 5. The invention is independently applied to hydrogen peroxide solutions, which are acidic, neutral or basic. It finds significant suitable application for acidic solutions whose pH is between 2 and 5.
Primjeri takvih otopina su otopine vodik peroksida korištene za čišćenje optičkih stakala, naročito kontaktnih leća, otopine H2O2 za hidrometalurgiju, točnije za ekstrakciju metala lučenjem minerala, otopine H2O2 za graviranje, dekapiranje i poliranje metala (na primjer, kupke za kemijsko poliranje bakroreza, kao što su one opisane u patentnoj prijavi FR A 87.13407 (SOLVAY & CIE), otopine H2O2 korištene za zaštitu okoline, kao oni korišteni za detoksikaciju eluentskih tekućina ili plinova i oni korišteni za pročišćavanje vode, otopine H2O2 korištene u prehrambenoj industriji i točnije oni koji služe u dezinfekciji ambalaže i recipenata. Examples of such solutions are hydrogen peroxide solutions used for cleaning optical glasses, especially contact lenses, H2O2 solutions for hydrometallurgy, specifically for the extraction of metals by secreting minerals, H2O2 solutions for engraving, pickling and polishing metals (for example, baths for chemical polishing of copper engravings, such as are those described in the patent application FR A 87.13407 (SOLVAY & CIE), H2O2 solutions used for environmental protection, such as those used for the detoxification of eluent liquids or gases and those used for water purification, H2O2 solutions used in the food industry and more specifically those used in disinfection of packaging and recipes.
Prema jednom obliku prikladne realizacije izuma, vodena otopina vodik peroksida može biti vodena kupka za bijeljenje koja sadrži vodik peroksid u koncentraciji između 0,5 i 50 g H2O2/100 g otopine. Primjeri takvih kupki za bijeljenje su miksture za pranje ili kupke za bijeljenje vodik peroksida tekstilnih materijala ili papirne kaše. According to one form of a suitable embodiment of the invention, the aqueous solution of hydrogen peroxide can be an aqueous bleaching bath containing hydrogen peroxide in a concentration between 0.5 and 50 g of H2O2/100 g of solution. Examples of such bleaching baths are washing mixtures or hydrogen peroxide bleaching baths for textile materials or paper pulp.
U tehnici za bijeljenje papirne kaše pomoću vodenih otopina vodik peroksida može se ponekad pokazati prikladnim prethodno tretiranje papirne kaše u bjeljaču s preparatom prifosfatsaminopolikarboksilat tipa onih korištenih prema izumu kako je definirano naprijed, prije izvođenja tretmana bijeljenja s vodik peroksidom. Ova posljednja tehnika je posebno zanimljiva jer kaša bjeljače pripada klasi kaša visokog prinosa. In the technique for bleaching paper pulp using aqueous solutions of hydrogen peroxide, it may sometimes prove appropriate to pre-treat the paper pulp in bleach with a priphosphatesaminopolycarboxylate preparation of the type used according to the invention as defined above, before carrying out the bleaching treatment with hydrogen peroxide. This last technique is particularly interesting because the white pulp belongs to the class of high-yielding pulp.
Izum se također odnosi na postupak stabilizacije vodene otopine vodik peroksida prema kojem se uvodi u vodenu otopinu preparat koji sadrži smjesu pirofosfata alkalnog ili zemnoalkalnog metala sa stabilizatorom koji pripada klasi aminopolikarboksilnih kiselina kojima odgovara sljedeća opća formula: The invention also relates to the process of stabilizing an aqueous solution of hydrogen peroxide, according to which a preparation is introduced into the aqueous solution containing a mixture of alkali or alkaline earth metal pyrophosphate with a stabilizer belonging to the class of aminopolycarboxylic acids, which correspond to the following general formula:
[image] [image]
gdje x je broj jednak 0, 1 ili 2 i where x is a number equal to 0, 1 or 2 and
y je broj jednak 0, 1 ili 2, y is a number equal to 0, 1 or 2,
ili soli ovih kiselina. or salts of these acids.
Izum predstavlja prikladno osiguravanje vodenih otopina vodik peroksida čija je stabilnost za duže vrijeme poboljšanja s obzirom na razlaganje izazvano kationima teških metala i prelaznih metala prema izvještaju u odnosu na poznate organske i neorganske stabilizatore. Neograničavajući primjeri koji slijede su dani samo radi ilustriranja izuma. The invention represents a convenient provision of aqueous solutions of hydrogen peroxide whose stability for a long time is improved with respect to decomposition caused by cations of heavy metals and transition metals according to the report in relation to known organic and inorganic stabilizers. The following non-limiting examples are given only to illustrate the invention.
Primjeri 1R do 14 Examples 1R to 14
Pasivizacija opreme Equipment passivation
Oprema korištena u svim primjerima koji slijede, podvrgnuta je prethodno tretmanu pasivizacije radi eliminiranja štetnog efekta nečistoća adsorbiranih na površini u kontaktu s primijenjenim stabiliziranim otopinama vodik peroksida. The equipment used in all the following examples was previously subjected to a passivation treatment in order to eliminate the harmful effect of impurities adsorbed on the surface in contact with the applied stabilized hydrogen peroxide solutions.
Zbog ovoga, sva staklarija koja će biti u kontaktu s H2O2 uranja se u vodenu otopinu HNO3 koncentracije 65% masenih i držana na temperaturi od 75ş tijekom 24 sata. For this reason, all glassware that will be in contact with H2O2 is immersed in an aqueous HNO3 solution with a concentration of 65% by mass and kept at a temperature of 75º for 24 hours.
Provjeravanja stabilnosti na duže vrijeme Long-term stability checks
U erlenmajer od 1 litre pasiviran kako je naprijed opisano, unosi se 85% mas. vodena otopina vodik peroksida, bidestilirana voda, stabilizator i otopina iona metala koji sadrži FeCl3 i 1 mol CuCl2. Količine raznih korištenih sastojaka su računate za pravljenje dva tipa krajnje smjese koja sadrži respektivno 35 g H2O2/100 g otopina i 70 g H2O2/100 g otopine zatim 5 mg metala (npr. Fe+Cu) na kg otopine i 250 mg stabilizatora (na 100% aktivnog materijala) na kg otopine. In a 1-liter Erlenmeyer flask passivated as described above, 85% by weight is introduced. aqueous hydrogen peroxide solution, double-distilled water, stabilizer and metal ion solution containing FeCl3 and 1 mol of CuCl2. The amounts of various ingredients used were calculated to make two types of final mixture containing respectively 35 g H2O2/100 g solution and 70 g H2O2/100 g solution, then 5 mg metal (e.g. Fe+Cu) per kg solution and 250 mg stabilizer (on 100% active material) per kg of solution.
Dobiveni rezultati su dani u tabelama I (35% mas. H2O2) i II (70% mas. H2O2) koje slijede. The obtained results are given in the following tables I (35% wt. H2O2) and II (70% wt. H2O2).
U ispitivanjima 5R, 7, 12R i 14 gdje je primijenjena smjesa stabilizatora, uvedeno je 125 mg svakog od dva stabilizatora na kg otopine. In tests 5R, 7, 12R and 14 where a mixture of stabilizers was applied, 125 mg of each of the two stabilizers was introduced per kg of solution.
Imena stabilizatora koji su korišteni su jedan dio 1,3-diamino-2-hidroksipropan-N,N,N',N'-tetraoctene kiseline (niže skraĆeno DPTA) prema izumu i drugi dio je određen broj stabilizatora koji su poznati i ne propadaju izumu, koji pripadaju dvjema različitim skupinama, jedan je polifosfonat proizvod tvrtke Monsanto i prodavan pod markom proizvoda DEQUEST, i dva stabilizatora neorganskog tipa. Ovi razni stabilizatori su primjenjivani sami ili u smjesi i označeni su kraticama kako slijedi: The names of the stabilizers that were used are one part of 1,3-diamino-2-hydroxypropane-N,N,N',N'-tetraacetic acid (hereinafter abbreviated DPTA) according to the invention and the other part is a certain number of stabilizers that are known and do not deteriorate invention, belonging to two different groups, one polyphosphonate product of Monsanto and sold under the product brand DEQUEST, and two stabilizers of the inorganic type. These various stabilizers are applied alone or in a mixture and are denoted by abbreviations as follows:
PYRO. Na2H2PVO7: natrij pirofosfat PYRO. Na2H2PVO7: sodium pyrophosphate
STAN: Na2SnO3: natrij stanat STAN: Na2SnO3: sodium stannate
D2066: Dietilentriaminopenta (natrij metilenfosfonat), gdje kratica D2066 simbolizira proizvod DEQUESTR, tvrtke Monsanto. D2066: Diethylenetriaminopenta (sodium methylenephosphonate), where the abbreviation D2066 symbolizes the product DEQUESTR, a Monsanto company.
Tabela I Table I
[image] [image]
(*) poslije 1 dana (*) after 1 day
Tabela II Table II
[image] [image]
(*) poslije 1 dana (*) after 1 day
Rezultati jasno pokazuju sinergistički efekt dan s DPTA i PYRO potvrđujući rješenje prema izumu. The results clearly show the synergistic effect given by DPTA and PYRO confirming the solution according to the invention.
Claims (10)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BE8900796A BE1004292A3 (en) | 1989-07-20 | 1989-07-20 | Stabilized aqueous solution of hydrogen peroxide and method for stabilizing aqueous solution of hydrogen peroxide. |
| YU140590A YU47152B (en) | 1989-07-20 | 1990-07-18 | Aqueous solution of stable hydrogen peroxide and procedure for stabilization of aqueous solution hydrogen peroxide |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| HRP920928A2 true HRP920928A2 (en) | 1994-08-31 |
Family
ID=25662463
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| HR920928A HRP920928A2 (en) | 1989-07-20 | 1992-10-02 | Water solution of stabilized hydro-peroxide and the process for the stabilization of hydro-peroxide water solution |
Country Status (2)
| Country | Link |
|---|---|
| HR (1) | HRP920928A2 (en) |
| SI (1) | SI9011405A (en) |
-
1990
- 1990-07-18 SI SI9011405A patent/SI9011405A/en unknown
-
1992
- 1992-10-02 HR HR920928A patent/HRP920928A2/en not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| SI9011405A (en) | 1997-06-30 |
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