HOMOGENEOUS NON-IONIC AND ANIONIC STRUCTURES. SYNTHESIS. COLLOIDAL CHARACTERIZATION

• Main Authors: RĂDULESCU MATILDA, STÂNGĂ LIVIA CLAUDIA, JIANU IONEL CĂLIN, LĂZUREANU ELENA-VOICHIŢA, MARC MONICA-STELUŢA, ARDELEAN LAVINIA COSMINA, MIU CĂTĂLIN-ADRIAN, JIANU ADELINA MARIA, SUCIU OANA, BUJANCĂ GABRIEL STELIAN, MIŞCĂ CORINA DANA, RUSU LAURA-CRISTINA, PESCARU CAMELIA-CORINA, FOLESCU ROXANA, MANOLESCU DIANA-LUMINIŢA
• Format: Patent
• Language: English; Romanian
• Published: 30.12.2020
• Subjects: ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES; CANDLES; CHEMISTRY; DETERGENT COMPOSITIONS; DETERGENTS; FATTY ACIDS THEREFROM; HETEROCYCLIC COMPOUNDS; METALLURGY; ORGANIC CHEMISTRY; RECOVERY OF GLYCEROL; RESIN SOAPS; SOAP OR SOAP-MAKING; USE OF SINGLE SUBSTANCES AS DETERGENTS

The invention relates to non-ionic-anionic structures having colloidal characteristics and to a process for preparing the same. According to the invention, the claimed structures are of the type 2- [β-2-ethyl-polypropyleneoxyethyl] pyridine 3 (6) alkaline -mono and/or di-sulphonates and/or ethanolammonium sulphonates of the general formula: wherein n is the homogeneous degree of homogenization of the propene oxide in the polyoxypropylene chain with values of 0,3,6,9,12,18 and M+ is an alkaline and/or ethanolammonium cation (mono-, di- and tri-). The claimed process consists of the steps of preparing homogeneous polyoxypropylene chains, the synthesis of homogeneous polyoxypropylene 2-ethylhexyl alcohols, their nucleophilic addition to vinyl pyridine, the sulphonation of pyridines with sulphuric acid and the controlled salification of the resulting mono- and/or di-sulphonic acids with inorganic and/or organic bases. Invenţia se referă la structuri neionice-anionice având caracteristici coloidale şi la un procedeu de obţinere a acestora. Structurile, conform invenţiei, sunt de tip 2-[β-2-etil-polipropilenoxietil]piridin 3(6)-mono şi /sau disulfonaţi alcalini şi /sau de etanolamoniu cu formula generală: în care n este gradul de omogenizare omogen al oxidului de propenă în catena polioxipropilenică cu valori de 0,3,6,9,12,18 şi M+ este cation alcalin şi /sau etanolamoniu (mono-, di- şi tri-). Procedeul, conform invenţiei, constă în etapele de obţinere a catenelor polioxipropilenice omogene, sinteza alcoolilor 2-etilhexilici polioxipropilenici omogeni, adiţia nucleofilă a acestora la vinil piridină, sulfonarea piridinelor cu acid sulfuric şi salifierea controlată a acizilor mono- şi/sau disulfonici rezultaţi cu baze anorganice şi/sau organice.