RO85542B1 - PROCEDEU DE OBTINERE A POLIACRILAMIDELOR ANIONICE SOLUBILE îN APA - Google Patents

PROCEDEU DE OBTINERE A POLIACRILAMIDELOR ANIONICE SOLUBILE îN APA

Info

Publication number
RO85542B1
RO85542B1 RO108388A RO10838882A RO85542B1 RO 85542 B1 RO85542 B1 RO 85542B1 RO 108388 A RO108388 A RO 108388A RO 10838882 A RO10838882 A RO 10838882A RO 85542 B1 RO85542 B1 RO 85542B1
Authority
RO
Romania
Prior art keywords
anionic polyacrylamides
water
preparing
watersoluble anionic
preparing watersoluble
Prior art date
Application number
RO108388A
Other languages
English (en)
Other versions
RO85542A2 (ro
Inventor
Francisc Nan
Liviu Mititeanu
Gheorghe Coman Rotariu
Ileana Batista
Augustin Chifor
Ioan Velicoglu
Florentina Lenard
Original Assignee
Francisc Nan
Liviu Mititeanu
Gheorghe Coman Rotariu
Ileana Batista
Augustin Chifor
Ioan Velicoglu
Florentina Lenard
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 Francisc Nan, Liviu Mititeanu, Gheorghe Coman Rotariu, Ileana Batista, Augustin Chifor, Ioan Velicoglu, Florentina Lenard filed Critical Francisc Nan
Priority to RO108388A priority Critical patent/RO85542B1/ro
Publication of RO85542A2 publication Critical patent/RO85542A2/ro
Publication of RO85542B1 publication Critical patent/RO85542B1/ro

Links

Landscapes

  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)

Abstract

Inventia se refera la un procedeu de obtinere a poliacrilamidelor anionice complet solubile în apa, prin prelucrarea chimica a gelurilor de copolimeri acrilamida-acid acrilic (acrilat de sodiu). Astfel gelul de copolimer cu continut în apa de 30...85% se amesteca cu un agent de posthidroliza ales dintre NaOH solutie de concentratie 5...50% Na2CO3 anhidru pulbere, introdus înaintea sau dupa fragmentarea copolimerului în proportie de 0,5...30% omogenizarea avînd loc la temperatura de 20...70 degree C, apoi uscarea pîna la un continut în apa de maximum 15% la temperatura de 40...100 degree C.
RO108388A 1982-08-06 1982-08-06 PROCEDEU DE OBTINERE A POLIACRILAMIDELOR ANIONICE SOLUBILE îN APA RO85542B1 (ro)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RO108388A RO85542B1 (ro) 1982-08-06 1982-08-06 PROCEDEU DE OBTINERE A POLIACRILAMIDELOR ANIONICE SOLUBILE îN APA

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RO108388A RO85542B1 (ro) 1982-08-06 1982-08-06 PROCEDEU DE OBTINERE A POLIACRILAMIDELOR ANIONICE SOLUBILE îN APA

Publications (2)

Publication Number Publication Date
RO85542A2 RO85542A2 (ro) 1984-10-31
RO85542B1 true RO85542B1 (ro) 1984-11-30

Family

ID=20111926

Family Applications (1)

Application Number Title Priority Date Filing Date
RO108388A RO85542B1 (ro) 1982-08-06 1982-08-06 PROCEDEU DE OBTINERE A POLIACRILAMIDELOR ANIONICE SOLUBILE îN APA

Country Status (1)

Country Link
RO (1) RO85542B1 (ro)

Also Published As

Publication number Publication date
RO85542A2 (ro) 1984-10-31

Similar Documents

Publication Publication Date Title
US4743396A (en) Pumpable magnesium hydroxide slurries
JPS5584304A (en) Preparation of polyacrylic acid alkali metal salt bridged polymer
KR890000678A (ko) 금속 함유 광석용 결합제
GB1323699A (en) Method for dlarifying titanium sulphate solutions
GB1307316A (en) Process for producing alumina
RO85542B1 (ro) PROCEDEU DE OBTINERE A POLIACRILAMIDELOR ANIONICE SOLUBILE îN APA
GB1433221A (en) Water treatment
US4095991A (en) Enhancement of heteropolysaccharide solubility
SU488395A3 (ru) Способ очистки водных растворов от ионов многовалентных металлов
GB1214412A (en) Process for the preparation of isatoic anhydride
GB1388954A (en) Paper size
CN112194232B (zh) 一种聚合乙酸铝-氯化铝絮凝剂及其制备方法与应用
GB2019826A (en) Process of Removing Oxides of Sulfur from Gases; Sludge Resulting from Process: and Product Comprising Lime or Limestone
GB1305787A (ro)
US1644258A (en) Thioglycollic acid compound
KR910011926A (ko) 저분자성의 수용성 중합체의 제조방법
GB932523A (en) Process for the production of lead hydroxide oxide of the formula 5 pbo.2ho
SU531827A1 (ru) Способ получени полиакриламида
SU145597A1 (ru) Способ получени структурообразователей почвы
SU145567A1 (ru) Способ очистки фолиевой кислоты
SU539856A1 (ru) Способ получени комплексных минеральных удобрений
SU400706A1 (ru) Способ получения защитного покрытия для фрезерного торфа
JPS57158244A (en) Production of particulate, easily water-soluble cellulose derivative composition
SU543648A1 (ru) Способ получени водорастворимого метафосфата кали
JPS5721990A (en) Treating method for silicone waste liquid