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RU95119213A - METHOD FOR CLEANING ALKALINE POLIOXYALKYLENE GLYCOLS - Google Patents

METHOD FOR CLEANING ALKALINE POLIOXYALKYLENE GLYCOLS

Info

Publication number
RU95119213A
RU95119213A RU95119213/04A RU95119213A RU95119213A RU 95119213 A RU95119213 A RU 95119213A RU 95119213/04 A RU95119213/04 A RU 95119213/04A RU 95119213 A RU95119213 A RU 95119213A RU 95119213 A RU95119213 A RU 95119213A
Authority
RU
Russia
Prior art keywords
glycols
polioxyalkylene
alkaline
water
fluids
Prior art date
Application number
RU95119213/04A
Other languages
Russian (ru)
Inventor
Л.Е. Бадикова
М.Ф. Постовалова
О.П. Челядинова
О.В. Хвостов
И.Ю. Казанцев
Original Assignee
Кемеровское акционерное общество "Химпром"
Filing date
Publication date
Application filed by Кемеровское акционерное общество "Химпром" filed Critical Кемеровское акционерное общество "Химпром"
Publication of RU95119213A publication Critical patent/RU95119213A/en

Links

Claims (1)

Способ очистки щелочных полиоксиалкиленгликолей от щелочного катализатора с получением полиоксиалкиленгликолей, используемых для приготовления смазочно-охлаждающих и гидравлических жидкостей, путем нейтрализации кислотой, отличающийся тем, что, с целью упрощения процесса очистки, ликвидации отходов и потерь целевого продукта, нейтрализацию проводят бензойной кислотой без воды или в присутствии до 25% воды до рН 4 - 8 и полученный полиоксиалниленгликоль или его раствор в воде, содержащий соль бензойной кислоты, без дальнейшей обработки используют для приготовления смазочно-охлаждающих и гидравлических жидкостей.The method of purification of alkaline polyoxyalkylene glycols from an alkaline catalyst to obtain polyoxyalkylene glycols used for the preparation of cutting fluids and hydraulic fluids by neutralizing with acid, characterized in that, in order to simplify the cleaning process, eliminate waste and loss of the target product, neutralization is carried out with benzoic acid without water or in the presence of up to 25% water to a pH of 4-8 and the resulting polyoxyalnylene glycol or its solution in water containing a salt of benzoic acid, without further processing used for the preparation of cutting fluids and hydraulic fluids.
RU95119213/04A 1995-11-13 METHOD FOR CLEANING ALKALINE POLIOXYALKYLENE GLYCOLS RU95119213A (en)

Publications (1)

Publication Number Publication Date
RU95119213A true RU95119213A (en) 1997-11-10

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