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Publication of SI9011080ApublicationCriticalpatent/SI9011080A/en
Publication of SI9011080BpublicationCriticalpatent/SI9011080B/en
Water Treatment By Electricity Or Magnetism
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1 PATENTNI ZAHTEVKI 1. Postopek za proizvodnjo laktuloze, pri katerem pripravimo alkalno vodno raztopino laktoze in boraksa ter jo segrevamo pri temperaturi nad 80 °C ter odločimo laktulozo iz nastalih pretvorbenih produktov, označen s tem, da razen boraksa ne damo v bistvu nobenega alkalizirnega materiala k raztopini.A process for the production of lactulose in which an alkaline aqueous solution of lactose and borax is prepared and heated at a temperature above 80 ° C and decides to lactulose from the resulting conversion products, characterized in that, in addition to borax, no substantially alkalizing material to a solution.2. Postopek po zahtevku 1, označen s tem, da boraks proizvedemo v vodni raztopini borove kisline, prednostno že istočasno z laktozo, pri čemer iz raztopine pretvorbenih produktov prenesemo natrijeve ione z elektrodializo v raztopino borove kisline.The process according to claim 1, characterized in that the borake is produced in aqueous boric acid solution, preferably simultaneously with lactose, whereby the solution of the conversion products transfers sodium ions with electrodialysis to the boric acid solution.3. Postopek po zahtevku 1, označen s tem, da natrijeve ione odstranimo iz raztopine pretvorbenih produktov, v bistvu kolikor je mogoče dobro, s pomočjo šibko kislega ionskega izmenjevalnika in šele zatem s pomočjo bolj močno kislega ionskega izmenjevalnika.The process according to claim 1, characterized in that the sodium ions are removed from the solution of the conversion products, substantially as good as possible, by means of a weak acid ion exchanger, and only then with a stronger acidic ion exchanger.4. Postopek po zahtevku 3, označen s tem, da šibko kisli ionski izmenjalnik vsaj delno regeneriramo z borovo kislino in da med navedeno regeneracijo tvorjenj boraks uporabimo vsaj delno pri postopku po zahtevku 1.The process according to claim 3, characterized in that the weak acid ion exchange buffer is at least partially regenerated with boric acid and that during this regeneration the borax formations are used at least in part for the method of claim 1.5. Postopek po kateremkoli izmed zahtevkov 1 do 4, označen s tem, da za ločbo laktuloze vodimo raztopino reakcijskih produktov po odločenju natrijevih ionov in pred ločbo boratnih ionov, prednostno po uparjenju na 15 do 20% suhega materiala, skozi dolgo kromatografsko kolono, polnjeno s šibko bazičnim ionskim izmenjeval-nikom, prednostno pri 30 do 60°C, pri čemer kot eluent uporabimo vodo.A process according to any one of claims 1 to 4, characterized in that a solution of the reaction products is determined after the sodium ion solution and before the separation of the borate ions, preferably after evaporation to 15 to 20% of the dry material, through a long chromatography column, filled with a weak basic ion exchanger, preferably at 30 to 60 ° C, using water as the eluent.6. Postopek po kateremkoli izmed zahtevkov 1 do 5, označen s tem, da za proizvodnjo laktuloze v prahu dodajamo koncentrirano raztopino laktuloze s čistočo vsaj 90% laktuloze, računano na suhi material, prednostno razpršeno, tako počasi k uprašeni laktulozi, ki jo vzdržujemo v gibanju, prednostno z mešanjem, in jo v njej tako hitro in fino porazdelimo, da raztopina laktuloze vedno tvori na površini delcev prahu samo tanek film, iz katerega raste trdni material na delcih prahu.A process according to any one of claims 1 to 5, characterized in that for the production of powdered lactulose, a concentrated lactulose solution of at least 90% of lactulose is calculated, based on the dry material, preferably dispersed, so slowly to the powdered lactulose maintained in preferably with stirring, and so rapidly and finely divided in it so that the lactulose solution always forms on the surface of the powder particles only a thin film from which the solid material on the dust particles is grown.
SI9011080A1990-06-011990-06-01Procedure for the lactulose production
SI9011080B
(en)
Encapsulated sodium percarbonate particles, method of producing them, and washing-agent, cleaning-agent and bleaching-agent compositions containing them
Method of synthesising sodium zincosilicate and stannosilicate and ion-exchanged products thereof,detergent formulations containing the sodium zincosilicate or stannosilicate products and catalysts or catalyst supports containing the ion-exchanged products