SU62427A1 - Filter paper preparation method - Google Patents

Filter paper preparation method

Info

Publication number
SU62427A1
SU62427A1 SU43597A SU43597A SU62427A1 SU 62427 A1 SU62427 A1 SU 62427A1 SU 43597 A SU43597 A SU 43597A SU 43597 A SU43597 A SU 43597A SU 62427 A1 SU62427 A1 SU 62427A1
Authority
SU
USSR - Soviet Union
Prior art keywords
water
filter paper
paper preparation
suspension
filters
Prior art date
Application number
SU43597A
Other languages
Russian (ru)
Inventor
А.А. Берлин
А.А. Копьев
И.Т. Садруков
Original Assignee
А.А. Берлин
А.А. Копьев
И.Т. Садруков
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 А.А. Берлин, А.А. Копьев, И.Т. Садруков filed Critical А.А. Берлин
Priority to SU43597A priority Critical patent/SU62427A1/en
Application granted granted Critical
Publication of SU62427A1 publication Critical patent/SU62427A1/en

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  • Filtering Materials (AREA)
  • Paper (AREA)

Description

в предлагаемом способе приготовлени  фильтровальной бумаги использовано свойство целлюлозы вступать в химическую св зь с водоотталкивающими препаратами. Така  фильтровальна  бумага, не пропуска  воды, фильтрует большинство органических растворителей, лоторые с водой не смешиваютс , как. например, бензол, бензин, керосин , хлороформ, эфир, сероуглерод и т. д.The proposed method of preparing a filter paper uses the property of cellulose to chemically bond with water repellents. This filter paper, not allowing water to pass through, filters most organic solvents that do not mix with water, like. for example, benzene, gasoline, kerosene, chloroform, ether, carbon disulfide, etc.

Фнльтры не тер ют своей водоотталкивающей способности вследствие того, что водоотталкивающий агент химически св зан с целлюлозой . Вода, нанесенна  на фильтр, в теченне дл тельного времени удерживаетс  на его поверхности.Filters do not lose their water repellency due to the fact that the water repellent agent is chemically bound to cellulose. The water applied to the filter is held on its surface for a period of time.

Снособ приготовлени  фильтров состоит в следующем:The method of preparation of the filters is as follows:

1-2 г велана PF или солана X затираетс  в ступке с теплой водой с те.мпературой 40° и разбавл етс  водой до 100 лг/.г. В воде предвар тельно раствор ют 0,5 г или 1 г уксуснокислого натри . Полученным 1-2-процентным раствором (суспензом) велана или солана, нагретым до 40°, смачиваетс  фильтровальна  бумага в течеине 1-2 минут, высущиваетс  при обыкновенной температуре и затем нагреваетс  при 120° около 10 минут. Дл  фильтрации технически чистых растворителей она вполне годна дл  употреблени . В случае применени  фильтров дл  точных работ она должна быть обработана в закрытом аппарате спиртом илн ацетоном, в которых раствор ютс  как водоотта.ткивающнй агент, не вступивший в .химическую св зь с целлю.юзой, так и продукты реакции.1-2 g of Wellan PF or Solana X is put in a mortar with warm water at a temperature of 40 ° C and diluted with water to 100 lg / g. 0.5 g or 1 g of sodium acetate is pre-dissolved in water. The resulting 1-2 percent solution (suspension) of welan or solan, heated to 40 °, filter paper is wetted in the leak for 1-2 minutes, dried at ordinary temperature and then heated at 120 ° for about 10 minutes. It is completely consumable for filtration of technically pure solvents. If filters are used for precision work, it should be treated in a closed apparatus with alcohol or acetone, in which both the water-repelling agent that has not entered into chemical connection with the cellulose material and the reaction products are dissolved.

Предмет изобретени Subject invention

Claims (2)

1.Способ приготовлени  бумаги дл  фильтров, с целью отделени  не смешивающихе  с водой органических растворителей от воды, отличающийс  тем, что фильтровальную бумагу пропитывают раствором или суспензией велана PF или солана X в воде при 40°, высушивают и нагревают при температуре выше 100° около 10 минут.1. A filter paper preparation method, in order to separate organic water solvents from water, which do not mix water with water, characterized in that the filter paper is impregnated with a solution or suspension of Wellan PF or Solan X in water at 40 °, dried and heated at a temperature above 100 ° about 10 minutes. 2.Прием выполнени  способа по п. 1, о т л и ч а ю пхи и с   тем, чтс в пропиточный раствор или суспензию ввод т уксуснокислый натрий.2. Acceptance of the method according to claim 1, about tl and h ay pkhi, and with acetic acid sodium are introduced into the impregnating solution or suspension.
SU43597A 1941-05-05 1941-05-05 Filter paper preparation method SU62427A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU43597A SU62427A1 (en) 1941-05-05 1941-05-05 Filter paper preparation method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU43597A SU62427A1 (en) 1941-05-05 1941-05-05 Filter paper preparation method

Publications (1)

Publication Number Publication Date
SU62427A1 true SU62427A1 (en) 1942-11-30

Family

ID=48243608

Family Applications (1)

Application Number Title Priority Date Filing Date
SU43597A SU62427A1 (en) 1941-05-05 1941-05-05 Filter paper preparation method

Country Status (1)

Country Link
SU (1) SU62427A1 (en)

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