SU937446A1 - Process for purifying dimethylformamide from photoresist material based on naphthalene series dye and phenol formaldehyde resin - Google Patents

Process for purifying dimethylformamide from photoresist material based on naphthalene series dye and phenol formaldehyde resin Download PDF

Info

Publication number
SU937446A1
SU937446A1 SU802955618A SU2955618A SU937446A1 SU 937446 A1 SU937446 A1 SU 937446A1 SU 802955618 A SU802955618 A SU 802955618A SU 2955618 A SU2955618 A SU 2955618A SU 937446 A1 SU937446 A1 SU 937446A1
Authority
SU
USSR - Soviet Union
Prior art keywords
dimethylformamide
purifying
formaldehyde resin
sorbent
purification
Prior art date
Application number
SU802955618A
Other languages
Russian (ru)
Inventor
Владимир Ярхамович Ахмадеев
Ираида Сергеевна Темнова
Нина Федоровна Трескова
Елена Ивановна Козлова
Татьяна Михайловна Жмакина
Original Assignee
Предприятие П/Я А-1521
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 Предприятие П/Я А-1521 filed Critical Предприятие П/Я А-1521
Priority to SU802955618A priority Critical patent/SU937446A1/en
Application granted granted Critical
Publication of SU937446A1 publication Critical patent/SU937446A1/en

Links

Landscapes

  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Treatment Of Liquids With Adsorbents In General (AREA)

Description

составл ет 85-97%. Влага в целевом продукте отсутствует.is 85-97%. Moisture in the target product is missing.

Модификацию угл  провод т следующим образом.«The modification of the coal is carried out as follows. "

В раствор, содержаишй 400 мл ацетона и 5 г мииеральиого масла, помещают 100 г предварительно отмытого от пыли и высушенного угл  АР-3, выдерживают при комнатной температуре при периодическом помешивании 1 ч. Избыток растворител  удал ют иа вод ной бане при посто нном помешивании, затем выдерживают в муфельной печи при 400-450С в течение 2ч.In a solution containing 400 ml of acetone and 5 g of mineral oil, 100 g of pre-washed dust and dried AP-3 coal are placed, kept at room temperature with occasional stirring for 1 hour. Excess solvent is removed in a water bath with constant stirring. then kept in a muffle furnace at 400-450C for 2 hours.

Дл  модификации могут быть использованы минеральные масла различных .марок: коMineral oils of various brands can be used for modification.

374464374464

Прессорное, сол ровое, вазелиновое, трансформаторное и другие, которые имеют в основе следующие соединени : нафтеиы - 45%, ароматические углеводы - 33% и парафий: 5 Пример 1. В колбу на 200 мл помещают 100 мл ДМФА, содержащего 0,3 г/л фоторезиста и 5 г угл  АР-3, модифицированного минеральным маслом в количестве 1% от веса сорбента и выдерживают при 10 комнатной температуре без перемешивани  в течение 50 ч. Степень очистки составл ет 85%. Влага отсутствует.Pressor, salt, petrolatum, transformer and others, which are based on the following compounds: naphtheas - 45%, aromatic carbohydrates - 33% and paraffin: 5 Example 1. In a 200 ml flask is placed 100 ml of DMF containing 0.3 g / l of photoresist and 5 g of AP-3 carbon modified with mineral oil in the amount of 1% by weight of the sorbent and kept at 10 room temperature without stirring for 50 hours. The degree of purification is 85%. Moisture is absent.

Аналогично осуществл ют очистку ДМФА с использованием различных количеств маси ла, результаты использованы в таблице.The same procedure is used to purify DMF using different amounts of oil, the results are used in the table.

Claims (2)

АР-3 Пример AR-3 Example 2. Опыт осуществл ют ана логично примеру 1, использу  уголь АР-3, модифицированный компрессорным маслом, в количестве % от веса сорбента. Степень очистки составл ет 86%. Влага отс ствует. Таким образом, предлагаемый способ очис ки позвол ет получать ДМФА высокой степени Очистки 85-97%, несодержащий влаги: Формула изобретени  Способ очистки диметилформамида от фоторезиста иа основе красител  нафталинового2. The experiment was carried out similarly to Example 1, using AP-3 coal, modified with compressor oil, in the amount of% by weight of the sorbent. The degree of purification is 86%. Moisture is absent. Thus, the proposed method of purification allows to obtain a high degree of purification of DMF 85-97%, which does not contain moisture: Claims of the invention A method for purifying dimethylformamide from photoresist based on naphthalene dye 7070 0.30.3 0,09 р да и фенолформальдегидной смолы адсорбцией на пористом сорбенте, содержащем активированный уголь, отличаю щи йс   тем, что, с целью повышени  качества целевого продукта, в качестве пористого сорбента используют активированный уголь, модифицированный минеральным маслом в количестве 1-5% от веса сорбента при 400450С . Источники информации, прин тые во виимание при экспертизе 1. Авторское свидетельство СССР № 829623, кл. С 07 С 103/36, 1979.0.09 series and phenol-formaldehyde resin by adsorption on a porous sorbent containing activated carbon, are distinguished by the fact that, in order to improve the quality of the target product, activated carbon modified with mineral oil in an amount of 1-5% by weight is used as a porous sorbent sorbent at 400450S. Sources of information taken for review during the examination 1. USSR author's certificate No. 829623, cl. C 07 C 103/36, 1979.
SU802955618A 1980-05-28 1980-05-28 Process for purifying dimethylformamide from photoresist material based on naphthalene series dye and phenol formaldehyde resin SU937446A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU802955618A SU937446A1 (en) 1980-05-28 1980-05-28 Process for purifying dimethylformamide from photoresist material based on naphthalene series dye and phenol formaldehyde resin

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU802955618A SU937446A1 (en) 1980-05-28 1980-05-28 Process for purifying dimethylformamide from photoresist material based on naphthalene series dye and phenol formaldehyde resin

Publications (1)

Publication Number Publication Date
SU937446A1 true SU937446A1 (en) 1982-06-23

Family

ID=20907971

Family Applications (1)

Application Number Title Priority Date Filing Date
SU802955618A SU937446A1 (en) 1980-05-28 1980-05-28 Process for purifying dimethylformamide from photoresist material based on naphthalene series dye and phenol formaldehyde resin

Country Status (1)

Country Link
SU (1) SU937446A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100431952C (en) * 2006-01-26 2008-11-12 南京大学 Preparation method of high specific surface area active charcoal based on formaldehyde-phenol resin
CN109266403A (en) * 2018-11-28 2019-01-25 河南城建学院 A method of naphthalene in removing bubbling fluidized bed gasification synthesis gas

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100431952C (en) * 2006-01-26 2008-11-12 南京大学 Preparation method of high specific surface area active charcoal based on formaldehyde-phenol resin
CN109266403A (en) * 2018-11-28 2019-01-25 河南城建学院 A method of naphthalene in removing bubbling fluidized bed gasification synthesis gas

Similar Documents

Publication Publication Date Title
PT904541E (en) PURIFICATION OF PLASMINOGENIC ACTIVATOR (TPA)
US3998756A (en) Preparation of activated carbonaceous material from sewage sludge and sulfuric acid
US6136071A (en) Process for the recovery of volatile low molecular compounds
SU937446A1 (en) Process for purifying dimethylformamide from photoresist material based on naphthalene series dye and phenol formaldehyde resin
RU97102730A (en) Zeolite adsorbent for desulfurization of gases and its application for the treatment of gases containing CO2
JPS61190590A (en) Adsorbent treatment for reducing foaming of basic raw material
US3586723A (en) Preparation of dialkyl disulfides
US4048055A (en) Process for regenerating aqueous urea solutions
DE69112853D1 (en) Process for the preparation of a catalyst for the aromatization of light hydrocarbons.
US3649169A (en) Treatment of gases
SU712114A1 (en) Method of purifying pyrogas
SU568627A1 (en) Method of purifying commercial methanol
SU692830A1 (en) Method of purifying dimethylformamide from mineral oil
SU1353740A1 (en) Method of removing anion dyes from waste water
SU1719315A1 (en) Process for treatment of shale processing sewage
SU419545A1 (en) A METHOD FOR CLEANING A KEROSIUM FRACTION FROM SULFUR COMPOUNDS
SU1337120A1 (en) Filtering material
SU825469A2 (en) Method of isolating aromatic hydrocarbons
SU1279983A1 (en) Method of isolating benzol hydrocarbons from coke gas
SU835477A1 (en) Adsorbent for cleaning gases from sulfur compounds
SU485968A1 (en) The method of processing silica gel
SU715452A1 (en) Method of phosphoric acid purification
SU778754A1 (en) Method of cleaning hydrocarbon gases containing heavy hydrocarbons from hydrogen sulfide
SU697159A1 (en) Method of purifying gases from mercaptanes
RU2078760C1 (en) Method for purification of aromatic amines