scholarly journals Physico-chemical Investigation of Aqueous Polymer Solutions and their Application as Soft Medicinal Forms

2019 ◽  
Vol 35 (2) ◽  
pp. 637-642
Author(s):  
Nagima Dzhakipbekova ◽  
Botagoz Torlanova ◽  
Erzhan Dzhakipbekov ◽  
Laura Aykozova ◽  
Asel Bekmurzaeva ◽  
...  
Keyword(s):  
Polymer Solutions ◽  
Water Soluble ◽  
Chemical Investigation ◽  
Water Soluble Polymers ◽  
Soluble Polymers ◽  
Technological Processes ◽  
Aqueous Polymer ◽  
Physico Chemical ◽  
Productivity Increase

The growing demand for water-soluble polymers of the acrylic series causes the researchers' interest in the synthesis of these compounds, which ultimately allows solving the tasks of the productivity increase, finding ways to improve the quality of final products, developing new highly efficient technological processes for the synthesis of these substances and their application as soft medicinal forms.

scholarly journals Homogenization of Polymeric Flocculant Solutions Used for Purification of Slurry Waters After Coal Preparation

2019 ◽  
Vol 105 ◽  
pp. 01022
Author(s):  
Galina Evmenova ◽  
Sergey Evmenov
Keyword(s):  
Process Analysis ◽  
Water Soluble ◽  
Coal Preparation ◽  
Water Soluble Polymers ◽  
Soluble Polymers ◽  
Homogenization Time ◽  
Concentrated Solution ◽  
Time Type

Use of flocculants -high-molecular synthetic water-soluble polymers, is one of the most perspective and economical methods for purification of the return and waste waters from coal preparation plants, and intensification of the whole coal processing process. For efficient use of flocculants, it is necessary to prepare homogeneous aqueous solutions, for which an optimal mixing mode should be selected, taking into account energy costs and quality of the concentrated solution. The paper presents herein result of the homogenization process analysis at preparation of solutions used for slurry water purification. Based on study of the rheological solution behavior and determination of the required for the numerical analysis of the process parameters of the rheological constants, power costs, homogenization time, type of equipment and mixing device have been determined.

scholarly journals Commodity characteristics and quality assessment of green tea sold in retail chains of Saint-Petersburg

2018 ◽  
Vol 80 (2) ◽  
pp. 236-241
Author(s):  
A. K. Aliea ◽  
E. O. Barbashenova
Keyword(s):  
Green Tea ◽  
Raw Materials ◽  
Poor Quality ◽  
Water Soluble ◽  
Chemical Examination ◽  
Normative Documents ◽  
Technological Processes ◽  
Physico Chemical ◽  
Trading Networks

Tea is one of the most favorite drinks in the world. About the useful effect of green tea on the human body is known very much. In connection with the fall of the economy, the quality of products entering the trading networks is also deteriorating, so we decided to check the quality of green tea sold by trading networks in St. Petersburg. There are the results of a study on the quality of green tea from different manufacturers in the article and accordance with their normative documents. Organoleptic and physico-chemical methods were used to allowable the quality of tea. We studied these samples for safety according to the maximum permissible content of toxins, radionuclides, mycotoxins and microorganisms in tea. According to the physico-chemical examination revealed violations in terms of: the content of tannin, water-soluble extractive substances, active acidity, increased mold content, which attests about assortment falsification of green tea, the use of poor quality raw materials, violation of technological processes and storage processes. As a result, it can be concluded that in production of tea it is necessary to take into account all regulatory requirements and comply with all technological processes, consider the requirements for storage and transportation of tea, certify the goods and use more manual labor when collecting tea leaves. Trading enterprises should use only certified goods and to use the conclusions of expert laboratoriesmore often.

New quenching media based on water-soluble polymers

1981 ◽  
Vol 23 (2) ◽  
pp. 104-106 ◽  
Author(s):  
A. V. Tolstousov ◽  
O. A. Bannykh
Keyword(s):  
Water Soluble ◽  
Water Soluble Polymers ◽  
Soluble Polymers ◽  
Quenching Media

scholarly journals SANS quantification of bound water in water-soluble polymers across multiple concentration regimes

Soft Matter ◽  
2021 ◽  
Author(s):  
Helen Yao ◽  
Bradley D. Olsen
Keyword(s):  
Neutron Scattering ◽  
Small Angle ◽  
Small Angle Neutron Scattering ◽  
Bound Water ◽  
Water Soluble ◽  
Wide Concentration Range ◽  
Water Molecules ◽  
Water Soluble Polymers ◽  
Soluble Polymers

Small-angle neutron scattering is used to measure the number of bound water molecules associating with three polymers over a wide concentration range. Different fitting workflows are evaluated and recommended depending on the concentration regime.

scholarly journals Flow Enhancement of Water-Soluble Polymers through Porous Media by Preshearing

2021 ◽  
Author(s):  
Mohsen Mirzaie Yegane ◽  
Julia Schmidt ◽  
Fatima Dugonjic-Bilic ◽  
Benjamin Gerlach ◽  
Pouyan E. Boukany ◽  
...  
Keyword(s):  
Porous Media ◽  
Water Soluble ◽  
Water Soluble Polymers ◽  
Soluble Polymers ◽  
Flow Enhancement
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