CS245302B1 - Antifoaming agent or antifoaming agents' mixture winning method - Google Patents

Antifoaming agent or antifoaming agents' mixture winning method Download PDF

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CS245302B1
CS245302B1 CS826838A CS683882A CS245302B1 CS 245302 B1 CS245302 B1 CS 245302B1 CS 826838 A CS826838 A CS 826838A CS 683882 A CS683882 A CS 683882A CS 245302 B1 CS245302 B1 CS 245302B1
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Czechoslovakia
Prior art keywords
antifoaming
mixture
ethylhexanol
antifoam
winning method
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CS826838A
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Czech (cs)
Slovak (sk)
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CS683882A1 (en
Inventor
Vendelin Macho
Milan Paulovic
Teodor Petrus
Ladislav Novak
Edmund Glevitzky
Milan Polievka
Jozef Kunovsky
Ladislav Culak
Rudolf Kubicka
Ivan Kopecky
Ludovit Kmet
Original Assignee
Vendelin Macho
Milan Paulovic
Teodor Petrus
Ladislav Novak
Edmund Glevitzky
Milan Polievka
Jozef Kunovsky
Ladislav Culak
Rudolf Kubicka
Ivan Kopecky
Ludovit Kmet
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Priority to CS824929A priority Critical patent/CS238829B1/en
Application filed by Vendelin Macho, Milan Paulovic, Teodor Petrus, Ladislav Novak, Edmund Glevitzky, Milan Polievka, Jozef Kunovsky, Ladislav Culak, Rudolf Kubicka, Ivan Kopecky, Ludovit Kmet filed Critical Vendelin Macho
Priority to CS826838A priority patent/CS245302B1/en
Priority to CS844929A priority patent/CS245320B1/en
Publication of CS683882A1 publication Critical patent/CS683882A1/en
Publication of CS245302B1 publication Critical patent/CS245302B1/en

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Abstract

Riešenie sa týká spósobu, získavania odpeňovača alebo zmesi odpeňovačov na báze syntetických kyslíkatých organických zlúčenín. Sposob sa uskutočňuje tak, že sa získává izoláciou ako ťažký podiel z rektifikácie surového 2-etylhexanolu s teplotou varu nad 184 °C.The solution relates to a method for obtaining an antifoam or a base-based antifoam mixture synthetic oxygenated organic compounds. The process is carried out so that it is obtained as a heavy fraction of rectification of crude 2-ethylhexanol with boiling point above 184 ° C.

Description

Vynález sa týká sposobu získavania, resp. přípravy účinného odpeňovača na báze syntetických, hlavně petrochemických surovin, pričom umožňuje využiť aj vediajšie produkty z velkotonážnej výroby vyšších mastných alkoholov oxoprocesom.The present invention relates to a method for obtaining, resp. preparation of an effective antifoam based on synthetic, mainly petrochemical raw materials, while allowing the use of by-products from large-scale production of higher fatty alcohols by oxoprocesses.

Z priemyselnej praxe, ako aj z literatúry sú známe mnohé látky, spravidla polykomponentné zmesi, ktoré sú účinné ako odpeňovače. Známe je' použitie kyslíkatých organických zlúčenin, obsahujúcich aktívny vodík, ako vyšších mastných kyselin, vyšších mastných alkoholov, uhlovodíkov, ako aj ich halogénderivátov. Významné, ale nákladné sú hlavně organokremičité zlúčeniny. K technicky dostupným patria produkty oxyetylácie kyseliny abietovej a olejovej, resp. oxyetylácie tálového oleja, ako aj produkty etoxylácie alebo propoxylácle kyselin so 4 až 25 atómami uhlíka s 1 až 25 mólmi alkylénoxidu samotné, alebo častejšie v kombinácii s organokremičitými zlúčeninami (USA patenty 2 991 248, 3 235 501 a 3 235 502). Potom sú to aspoň parciálně esterifikované polyoly, napr. esterifikovaný glycerol, pentaerytritol a sorbltol (USA pat. 3 235 498), ďalej odpeňovač na báze nenasýtených kyselin, ako kyseliny akrylovej a metakrylovej .(USA pat. 3 458 567). Poměrně rozšířené sú odpeňovače na báze polykomponentných zmesi (USA pat. 2 923 687, 3 180 836 a čs. autorské osvedčenie 183 982), v ktorých významnými zložkami sú vyššie mastné kyseliny, rastlinné i minerálně oleje a produkty polyadície alkylénoxidov na vyššie mastné kyseliny alebo alkoholy. Ich kladom bývá netoxičnosť, ale nedostatkom poměrně nižšia odpeňovacia účinnost. V případe organokremičitých komponentov, ako silikonových olejov, je pozoruhodná vysoká odpeňovacia účinnost (i výše 90 %), ale nedostatkom je najmá ich surovinová a energetická náročnost. Tieto problémy však v pozoruhodnej miere rieši sposob podlá tohto vynálezu.Many substances are known from industrial practice as well as from the literature, generally poly-component mixtures which are effective as antifoams. It is known to use oxygen-containing organic compounds containing active hydrogen as higher fatty acids, higher fatty alcohols, hydrocarbons, as well as their halogen derivatives. Organosilicon compounds are particularly important but expensive. Technically available include the products of oxyethylation of abietic acid and oleic acid, respectively. tall oil oxyethylation as well as ethoxylation or propoxylate products of 4 to 25 carbon atoms with 1 to 25 moles of alkylene oxide alone, or more often in combination with organosilicon compounds (U.S. Patents 2,991,248, 3,235,501 and 3,235,502). They are then at least partially esterified polyols, e.g. esterified glycerol, pentaerythritol and sorbltol (U.S. Pat. No. 3,235,498), and an unsaturated acid defoamer such as acrylic and methacrylic acid (U.S. Pat. No. 3,458,567). Relatively widespread are antifoams based on poly-component blends (U.S. Pat. Nos. 2,923,687, 3,180,836 and US Patent 183,982), in which the major components are higher fatty acids, vegetable and mineral oils, and polyaddition products of alkylene oxides to higher fatty acids, or alcohols. Their advantage is nontoxicity, but the drawback is relatively lower antifoaming efficiency. In the case of organosilicon components, such as silicone oils, the high antifoam efficiency (even above 90%) is remarkable, but the shortage is in their raw material and energy intensity. However, the present invention solves these problems to a remarkable extent.

Podlá tohto vynálezu sa sposob získavania odpeňovača alebo zmesi odpeňovačov na báze syntetických kyslíkatých organických zlúčenin uskutočňuje tak, že sa získává izoláciou ako ťažký podiel z rektifikácie surového 2-etylhexanoIu s teplotou varu nad 184 °C.According to the present invention, a process for obtaining a defoamer or a blend of defoamer based on synthetic oxygenated organic compounds is carried out by isolation as a heavy fraction from the rectification of crude 2-ethylhexanol having a boiling point above 184 ° C.

Výhodou spósobu získavania odpeňovača podlá tohto vynálezu je surovinová dostupnost keď sa dá izolovat ako ťažký podiel, dosial1 nízko zhodnocovaný vedlejší produkt — destilačný zvyšok z výroby 2-etylhexanolu.An advantage of the method of obtaining an antifoam according to the present invention is the raw material availability when it can be isolated as a heavy fraction, so far 1 low-valued byproduct - a distillation residue from the production of 2-ethylhexanol.

Ako tažký podiel z výroby 2-etylhexanolu prichádzajú do úvahy predovšetkým ťažké podiely alebo destilačné zvyšky z destilácie alebo rektifikácie surového 2-etylhexanolu. Tažké podiely okrem 2-etylhexanolu obsahujú tiež alkoholy C12, z nich najčastejšie dodekanol a diol C12 a spravidla ešte příměsi acetálov, esterov, éteralkoholov, připadne tiež aldehydov Ce a C12.Particularly suitable heavy fractions or distillation residues from the distillation or rectification of the crude 2-ethylhexanol are suitable as heavy fractions from the production of 2-ethylhexanol. In addition to 2-ethylhexanol, the proportions also contain C12 alcohols, most of which are dodecanol and C12 diol, and usually also admixtures of acetals, esters, ether alcohols, and possibly aldehydes Ce and C12.

Odpeňovač podlá tohto vynálezu možno aplikovat samotný alebo v kombinácii s inými odpeňovačmi.The antifoam according to the invention may be applied alone or in combination with other antifoams.

Ďalšie výhody a podrobnosti spósobu podla tohto vynálezu sú zřejmé z přikladu.Further advantages and details of the method of the invention are apparent from the example.

Příklad 1Example 1

Ťažké podiely, získané v podstatě ako destilačný zvyšok z rektifikácie surového 2-etylhexanolu zloženia: % hmot. OH = 12,9; brómové číslo = 4,7 g Br/100 g; číslo kyslosti ~ 0,9 mg KOH/g; číslo zmydelnenia = = 22,1 mg KOH/g; 2-etylhexanol = 36,3 % hmot.; alkoholy vrátane diolov C12 = 44,1 % hmot.; hutyraldehyddiizobutylacetát = 0,7 hmot. a 7 dalších kyslíkatých organických látok v konc. po 1 až 6 % hmot.; priemerná molekulová hmotnost = 190; hustota pri 20 °C = 901,9 kg . nr3; η02θ = 1,4530.The heavy fractions obtained essentially as a distillation residue from the rectification of crude 2-ethylhexanol of the composition:% by weight. OH = 12.9; bromine number = 4.7 g Br / 100 g; acid number ~ 0.9 mg KOH / g; saponification number = 22.1 mg KOH / g; 2-ethylhexanol = 36.3% by weight; alcohols including diols C12 = 44.1% by weight; hutyraldehyde diisobutyl acetate = 0.7 wt. and 7 other oxygenated organic compounds in conc. 1 to 6% by weight; average molecular weight = 190; density at 20 ° C = 901.9 kg. nr 3 ; η 0 2θ = 1.4530.

Odpeňovacia účinnost sa stanoví tak, že penivosť štandardnej vzorky sa porovnává s penivosťou štandardnej vzorky s přidaným odpeňovačom. Konkrétné, 100 cm3 vodného roztoku laurylpolyglykolétersíranu sodného o konc, 1 g/dm3 sa opatrné vleje do odmerného valca o objeme 500 cm3 a uzavrie sa zábrusovou zátkou. Štandardný roztok sa speňuje pri teplote 20 +2°C prevracaním valca o 180° a spát počas 1 min paťdesiatkfát. Meria sa výška pěny a výška nespeneného roztoku po uplynutí 1 min po ukončení speňovania. Penivosť štandardu Ps (v %) gThe foaming efficiency is determined by comparing the foaming capacity of the standard sample with that of the standard sample with an added defoamer. Specifically, a 100 cm 3 aqueous solution of sodium lauryl polyglycol ether sulphate of 1 g / dm 3 is carefully poured into a 500 cm 3 graduated cylinder and sealed with a ground-glass stopper. The standard solution is foamed at 20 + 2 ° C by inverting the cylinder by 180 ° and sleeping for 1 min. The height of the foam and the height of the non-foaming solution are measured 1 minute after the foaming is complete. Foaming standard P s (in%) g

sa vypočítá zo vztahu Ps — —-— . 100, v ktorom a = výška pěny (cm), b — výška nespeneného roztoku (cm).is calculated from the relation P s - —-—. 100, in which a = the height of the foam (cm), b - the height of the non-foamed solution (cm).

Odpeňovacia účinnost sa stanovuje podobné, len s tým rozdielom, že k 100 cm3 štandardného roztoku sa přidá odpeňovač v množstve 0,02 g (1 kvapka) a stanoví sa penivosť Po (v %) štandardného roztoku spolu s odpeňovačom. Meranie sa robí třikrát a aritmetický priemer sa zoberie ako konečný výsledok.The foaming efficiency is determined similarly, except that 100 cm 3 of the standard solution is added with an antifoam in an amount of 0.02 g (1 drop) and the foaming power P o (in%) of the standard solution is determined together with the antifoam. The measurement is made in triplicate and the arithmetic mean is taken as the final result.

Ťažké podiely z rektifikácie surového 2-etylhexanolu mali odpeňovaciu účinnostHeavy fractions from the rectification of crude 2-ethylhexanol had antifoaming efficacy

Claims (1)

Sposob ziskavania odpeňovača alebo zmesi odpeňovačov na báze syntetických kyslíkatých organických zlúčenín, vyznačujúci sa tým, že sa získává izoláciou ako ťažký podiel z rektifikácie surového 2-etylhexanolu s teplotou varu nad 184 °C.A process for obtaining a defoamer or a blend of defoamer based on synthetic oxygenated organic compounds, characterized in that it is obtained by isolation as a heavy fraction from the rectification of crude 2-ethylhexanol having a boiling point above 184 ° C.
CS826838A 1982-06-30 1982-09-24 Antifoaming agent or antifoaming agents' mixture winning method CS245302B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CS824929A CS238829B1 (en) 1982-06-30 1982-06-30 Clamping device for revolving components
CS826838A CS245302B1 (en) 1982-09-24 1982-09-24 Antifoaming agent or antifoaming agents' mixture winning method
CS844929A CS245320B1 (en) 1982-09-24 1984-06-27 Antifoaming agent's or antifoaming agents' mixture preparation method

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CS826838A CS245302B1 (en) 1982-09-24 1982-09-24 Antifoaming agent or antifoaming agents' mixture winning method

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CS245320B1 (en) 1986-09-18

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