SU398106A1 - Method of obtaining cellulose phosphates - Google Patents

Method of obtaining cellulose phosphates

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Publication number
SU398106A1
SU398106A1 SU7101678260A SU1678260A SU398106A1 SU 398106 A1 SU398106 A1 SU 398106A1 SU 7101678260 A SU7101678260 A SU 7101678260A SU 1678260 A SU1678260 A SU 1678260A SU 398106 A1 SU398106 A1 SU 398106A1
Authority
SU
USSR - Soviet Union
Prior art keywords
cellulose
phosphates
obtaining cellulose
urea
cellulose phosphates
Prior art date
Application number
SU7101678260A
Other languages
Russian (ru)
Inventor
Г.А. Петропавловский
В.А. Долматова
Original Assignee
Институт Высокомолекулярных Соединений Ан Ссср
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.)
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Publication date
Application filed by Институт Высокомолекулярных Соединений Ан Ссср filed Critical Институт Высокомолекулярных Соединений Ан Ссср
Priority to SU7101678260A priority Critical patent/SU398106A1/en
Application granted granted Critical
Publication of SU398106A1 publication Critical patent/SU398106A1/en

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Description

И.-)обрс1тение относитс  к способам получоиил эфиров целлютюаы.And .-) education refers to the methods of obtaining esters of cellulose.

1;зг1ССгиь способы получени  фосфатов целлзчло.и, путем ее обработки фосфорной кислотой н присутствии серной кислоты, 1; methods of producing phosphates of cellulose; and, by treating it with phosphoric acid in the presence of sulfuric acid,

окислов азота и мочевины, }-1аиболее проcTf .iM и достуттным из известных способов  вл етс  получение фосфатов целлюлозы TiyfuM реакции с мочевинофосфорпокислей смс-сью. Недостатком этого способа  вл е С5Г -то, что целлюлоза после обработки сме cbij фосфорной кислоты и мочевины нагре{ аетсл па воздухе при высокой температуре ( С), что приводит к подгоранию целлюлозы, сильному ее пожелтению и ппачительиой деструкции,oxides of nitrogen and urea,} -1 is the most common process and one of the known methods is to obtain cellulose phosphates TiyfuM reaction with urea phosphate sms. The disadvantage of this method is that the cellulose, after processing a mixture of biophosphoric acid and urea, heats up the air at high temperature (C), which leads to burning of the cellulose, its strong yellowing and harmful destruction,

. устранени  указанных кедос- г,гтко 1 Ире пложено реакцию проводить с (pofiu с:ложных эфиров уксусной кислоты а /ллифатических спиртов ( С - ). напркмо ) в бутил-, амилацетате при темпе1- .;}ту.- их кипени .. elimination of the above-mentioned kedos-g, gtko 1 Ire reaction is carried out with (pofiu with: false esters of acetic acid of a / liphatic alcohols (C -). naprkmo) in butyl, amyl acetate at a temp; -1;} tu .- their boiling.

п:5Ог..ени  фосфорилировани  от- ;; -iTVi : F ....бмтка фосфэрилирующейсмеси HIM i.i..... (:-лоикова  вата, древесна  p: 5Og .. phosphorylation from- ;; -iTVi: F .... HIM i.i ..... phosphorillating mixture batch ((: -loikova wool, wood

целлюлоза, пр жа, ткань и др,) обрабатывают в сосуде, снабжеппом конденсатором паров указанных сложных эфпров, в течение 1О-60 мин при темтгературе кипени  среды, В зависимости от количества фосфорилирующей смеси, содержащейс  в целлюлозе после отжима, получают мало- деструктированные продукты с содержанием фосфора до 8%, обладающие негорючстью нерастворимостью и отличающиес  белым цветом.cellulose, yarn, cloth, etc., are treated in a vessel by supplying the vapor condenser of these complex effluents to the condenser for 1–60 min with the boiling temperature of the medium. Depending on the amount of phosphorylating mixture contained in the cellulose after pressing, low-degraded products are obtained with a phosphorus content of up to 8%, which is incombustible insoluble and has a white color.

Пример 1, Юг целлюлозы обра- батывают смесью 87%-ной ортофосфорной кислоты и мочевины из расчета 3 моль мочевины ка 1 моль фосфорной кислоты, отжимают до 4-.кратаого веса, размель чакзт и помещают в колбу с обратным ХОЛОДИЛЬНИКОМ; в которой находитс  20OM амилацетата, нагревают прт /температуре К1шени  (150°С) в течение ЗО мин и получают продукт белого цвета и однородно этериф шированный, содержащий св занного фосфора 6%.Example 1 South of cellulose is treated with a mixture of 87% orthophosphoric acid and urea at the rate of 3 mol of urea and 1 mol of phosphoric acid, squeezed to 4-fold weight, crushed chakt and placed in a flask with reversed REF; in which there is 20OM of amyl acetate, heat the prt / temperature of K1shena (150 ° C) for 30 min. and get a white product and uniformly esterified, containing 6% bound phosphorus.

Пример 2. Обработанную по примеру 1 целлюлозу помещают в колбу с ( 5угилацетагом и jr rpwoajoT ари ки1Ши цнн 1 час. Г1олуча)м,П )одный продукт с содержанием фосфора 6%, ф о т. м у л а изобретений CmxioCi получени  фосфатов целлюлбс ы реакции целлюлозы со Nsecwo с ьиш.д н |-1т;форцпм jtEicnoTb, о т л и ч а ющ и и с   тем, 4TOs с цельк получени  oiiiUijiOjiHbix недеструкм-нровааных и неокраикнгных продукте, ре..)шик провод т в с.Ш7кн:ых эфиров .уксусной кислоты и -злкф-гщческих с1шртс-к ( Сд- С ) при теКГ11ературе их кииспи .Example 2. The cellulose treated in Example 1 is placed in a flask with (5gilagecetag and jr rpwoajoT arii1Si cnn 1 hr. H1 beam) m, P) one product with a phosphorus content of 6%, f.t.m. of CmxioCi inventions for preparing cellulose phosphates The reaction of cellulose with Nsecwo with t.ish.d | -1t; forzpm jtEicnoTb, about tlicha yu and and with that, 4TOs with the purpose of obtaining oiiiUijiOjiHbix non-destructive-nkrovirovannyh and neokrakngngnyh product, ..) wired in .Sh7kn: s esters of .acetic acid and -slc-hscheskikh s1shrts-k (Sd-S) with a teKG11yatura their kiisi.

SU7101678260A 1971-06-25 1971-06-25 Method of obtaining cellulose phosphates SU398106A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU7101678260A SU398106A1 (en) 1971-06-25 1971-06-25 Method of obtaining cellulose phosphates

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU7101678260A SU398106A1 (en) 1971-06-25 1971-06-25 Method of obtaining cellulose phosphates

Publications (1)

Publication Number Publication Date
SU398106A1 true SU398106A1 (en) 1977-07-25

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Application Number Title Priority Date Filing Date
SU7101678260A SU398106A1 (en) 1971-06-25 1971-06-25 Method of obtaining cellulose phosphates

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SU (1) SU398106A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2745715C2 (en) * 2018-12-06 2021-03-30 Александр Николаевич Левичев Carbohydrate phosphates as plant growth activators and method of their production
CN116589609A (en) * 2023-07-13 2023-08-15 天津永续新材料有限公司 Preparation method of phosphorylated nano-chitin based on mechanochemical method and phosphorylated nano-chitin

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2745715C2 (en) * 2018-12-06 2021-03-30 Александр Николаевич Левичев Carbohydrate phosphates as plant growth activators and method of their production
CN116589609A (en) * 2023-07-13 2023-08-15 天津永续新材料有限公司 Preparation method of phosphorylated nano-chitin based on mechanochemical method and phosphorylated nano-chitin
CN116589609B (en) * 2023-07-13 2023-10-20 天津永续新材料有限公司 Preparation method of phosphorylated nano-chitin based on mechanochemical method and phosphorylated nano-chitin

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