PL448037A1 - Method for obtaining glycolic acid ethers - Google Patents

Method for obtaining glycolic acid ethers

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Publication number
PL448037A1
PL448037A1 PL448037A PL44803724A PL448037A1 PL 448037 A1 PL448037 A1 PL 448037A1 PL 448037 A PL448037 A PL 448037A PL 44803724 A PL44803724 A PL 44803724A PL 448037 A1 PL448037 A1 PL 448037A1
Authority
PL
Poland
Prior art keywords
mono
alcohol
mol
oligohydric
mbar
Prior art date
Application number
PL448037A
Other languages
Polish (pl)
Other versions
PL250051B1 (en
Inventor
Michał Rabiej
Małgorzata Milewska
Andrzej Milewski
Piotr Dydo
Original Assignee
Politechnika Śląska
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Politechnika Śląska filed Critical Politechnika Śląska
Priority to PL448037A priority Critical patent/PL250051B1/en
Publication of PL448037A1 publication Critical patent/PL448037A1/en
Publication of PL250051B1 publication Critical patent/PL250051B1/en

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
    • C07C51/347—Preparation of carboxylic acids or their salts, halides or anhydrides by reactions not involving formation of carboxyl groups
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C59/00—Compounds having carboxyl groups bound to acyclic carbon atoms and containing any of the groups OH, O—metal, —CHO, keto, ether, groups, groups, or groups
    • C07C59/01—Saturated compounds having only one carboxyl group and containing hydroxy or O-metal groups
    • C07C59/06—Glycolic acid
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C59/00—Compounds having carboxyl groups bound to acyclic carbon atoms and containing any of the groups OH, O—metal, —CHO, keto, ether, groups, groups, or groups
    • C07C59/235—Saturated compounds containing more than one carboxyl group
    • C07C59/305—Saturated compounds containing more than one carboxyl group containing ether groups, groups, groups, or groups

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

Przedmiotem zgłoszenia jest sposób otrzymywania eterów kwasu glikolowego, który polega na tym, że 1 g do 10 g kwasu chlorooctowego rozpuszcza się odpowiednio w 99 g do 90 g alkoholu mono- lub oligohydroksylowym otrzymując roztwór od 1% wag. do 10% wag., który wprowadza się 1 BV z 0,2 BV/h do 0,5 BV/h, na kolumnę jonowymienną wypełnioną anionitem o objętości złoża równą jej całkowitej pojemności roboczej (1 BV), następnie żywicę odmywa się wprowadzając 0,25 BV z 0,2 BV/h do 0,5 BV/h alkohol mono- lub oligohydroksylowy, po czym kolumnę wprowadza się 0,5 BV z 0,2 BV/h do 0,5 BV/h wodorotlenek sodu lub wodorotlenek potasu rozpuszczony w alkoholu mono- lub oligohydroksylowym, o molowym nadmiarze wodorotlenku od 2 mola do 3 mola na każdy 1 mol kwasu chlorooctowego, otrzymaną mieszaninę poreakcyjną rozcieńcza się wodą do maksymalnego przewodnictwa i odsala metodą elektrodializy przy 50 A/m2 do 200 A/m2, nie przekraczając 2 V/parę membran i zakwasza wprowadzając od 2 mola do 3 mola 1 kwasu mineralnego, odparowuje wodę w temperaturze od 30°C do 60°C pod obniżonym ciśnieniem od 42 mbar do 194 mbar.The subject of the application is a method for obtaining glycolic acid ethers, which consists in dissolving 1 g to 10 g of chloroacetic acid in 99 g to 90 g of mono- or oligohydroxy alcohol, respectively, to obtain a solution of 1% by weight. to 10% by weight, which is introduced at a rate of 1 BV from 0.2 BV/h to 0.5 BV/h, onto an ion exchange column filled with anion exchanger with a bed volume equal to its total working capacity (1 BV), then the resin is washed by introducing 0.25 BV from 0.2 BV/h to 0.5 BV/h of mono- or oligohydric alcohol, after which the column is introduced at a rate of 0.5 BV from 0.2 BV/h to 0.5 BV/h of sodium hydroxide or potassium hydroxide dissolved in mono- or oligohydric alcohol, with a molar excess of hydroxide from 2 mol to 3 mol per 1 mol of chloroacetic acid, the obtained post-reaction mixture is diluted with water to the maximum conductivity and desalted by electrodialysis at 50 A/m2 to 200 A/m2, not exceeding 2 V/pair of membranes and acidified by introducing from 2 moles to 3 moles of 1 mineral acid, evaporating water at a temperature of 30°C to 60°C under reduced pressure of 42 mbar to 194 mbar.

PL448037A 2024-03-19 2024-03-19 Method for obtaining glycolic acid ethers PL250051B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL448037A PL250051B1 (en) 2024-03-19 2024-03-19 Method for obtaining glycolic acid ethers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL448037A PL250051B1 (en) 2024-03-19 2024-03-19 Method for obtaining glycolic acid ethers

Publications (2)

Publication Number Publication Date
PL448037A1 true PL448037A1 (en) 2025-09-22
PL250051B1 PL250051B1 (en) 2026-08-10

Family

ID=97103647

Family Applications (1)

Application Number Title Priority Date Filing Date
PL448037A PL250051B1 (en) 2024-03-19 2024-03-19 Method for obtaining glycolic acid ethers

Country Status (1)

Country Link
PL (1) PL250051B1 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3879452A (en) * 1971-05-07 1975-04-22 Conen Corp Method for making diglycolic acid, dipropionic acid and the salts thereof
US20130261328A1 (en) * 2012-03-27 2013-10-03 Eastman Chemical Company Hydrocarboxylation of formaldehyde in the presence of a higher order carboxylic acid and a homogeneous catalyst
PL244727B1 (en) * 2021-12-06 2024-02-26 Politechnika Slaska Im Wincent Method for the preparation of diglycolic acid

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3879452A (en) * 1971-05-07 1975-04-22 Conen Corp Method for making diglycolic acid, dipropionic acid and the salts thereof
US20130261328A1 (en) * 2012-03-27 2013-10-03 Eastman Chemical Company Hydrocarboxylation of formaldehyde in the presence of a higher order carboxylic acid and a homogeneous catalyst
PL244727B1 (en) * 2021-12-06 2024-02-26 Politechnika Slaska Im Wincent Method for the preparation of diglycolic acid

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
GOOGLE; W. Heintz, Ueber die Diglycolsäure (Paraäpfelsäure), „Annalen der Physik", 191 (2), 1862, s. 280–295, DOI: 10.1002/andp.18621910206 *

Also Published As

Publication number Publication date
PL250051B1 (en) 2026-08-10

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