Main Sector of relevance\IRC classification 7. Environment and Safety

7.17 Fibrous polyampholyte FIBAN AK-22B

Developers’ contact information

State Scientific Institution “The Institute of Physical Organic Chemistry of the National Academy of Sciences of Belarus”
13, Surganov Str., 220072 Minsk

Summary

The project is devoted to one of new fibrous ion-exchange materials developed in the Institute of Physical-and-Organic Chemistry of the National Academy of Sciences of Belarus. Depending on the regenerating solution (acid or base) the material may be used for purification of air from both toxic and base substances of acid

Description

Within the scope of the project it is suggested to use polyampholytic fiber containing equal amounts of weakly basic amino groups and weakly basic carboxyl groups. It is produced in the form of staple fiber and non-woven needle-punched fiber. The material may be manufactured in the form containing up to 20% of thermoplastic polypropylene enabling to produce more solid thermobonded non-woven materials. Trial plant of the Institute of Physical-and-Organic Chemistry may produce up to 5 tons of fiber per year

Technology type

• Material

Technical advantages and economic benefits

Fibrous polyampholyte may be used as a universal adsorbent of acid (SO₂ , HCI , HF) and base (NH₃) toxic gas substances depending on the type of regenerating agent (H₂SO₄  or Na₂CO₃) in the air cleaning filters equipped with the system of regeneration. The material has a high level of stability in regenerating solutions and possesses hydrophilic properties.

Technology differentiation and uniqueness

Sanitary cleaning of the air in industrial and agricultural enterprises from ionogenic toxic substances with concentration of up to 200 mg/m³.

Context in which technology was identified

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Technological keywords

Fiber, polyapholyte, sulphur dioxide, hydrogene chloride and fluoride, ammonia, cleaning, regeneration

Development Stage

• Other:
  Technical documentation has been prepared; production of up to 5 tons per year has been organized. 8 tons of adsorbent has been produced and sold.

Intellectual property rights

• Patent application filed
• Specific Patent Information:
  Application No. a20071163 dated 25.09.2007 year for patent for invention of the Republic of Belarus “Method of producing ion-exchange polyampholyte fiber”.

Range of applications

Purification of process and ventilation air in manufacturing facilities of industrial and agricultural enterprises, intermediate product in the process of adsorbent production for purifying process air in “clean rooms” of enterprise, protection of high-technology equipment from corrosion by means of aggressive acid substances: SO₂ , SO₃ , HCI , HF , means of individual protection: respirators and suits.

Classifier Used at the EU Innovation Relay Centres

• Environment and Safety

Preferable Regions

• North America
• Europe
• Asia
• Africa

Practical experience

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Environmental impact

Means of environmental protection.

Type of collaboration sought

• Other:
  Delivery of fibrous polyamphyte, combined testing and introduction in production

Terms and restrictions

Non-exclusive license contract

Available technical assistance

• Documentation
• Other:
  Production documentation, technical support.