TFF meaning in Chemistry ?

Answer: What is Tangential Flow Filtration mean?

In chemical engineering, biochemical engineering and protein purification, crossflow filtration (also known as tangential flow filtration) is a type of filtration (a particular unit operation). Crossflow filtration is different from dead-end filtration in which the feed is passed through a membrane or bed, the solids being trapped in the filter and the filtrate being released at the other end. Cross-flow filtration gets its name because the majority of the feed flow travels tangentially across the surface of the filter, rather than into the filter. The principal advantage of this is that the filter cake (which can blind the filter) is substantially washed away during the filtration process, increasing the length of time that a filter unit can be operational. It can be a continuous process, unlike batch-wise dead-end filtration.

This type of filtration is typically selected for feeds containing a high proportion of small particle size solids (where the permeate is of most value) because solid material can quickly block (blind) the filter surface with dead-end filtration. Industrial examples of this include the extraction of soluble antibiotics from fermentation liquors.

The main driving force of cross-flow filtration process is transmembrane pressure. Transmembrane pressure is a measure of pressure difference between two sides of the membrane. During the process, the transmembrane pressure might decrease due to an increase of permeate viscosity, therefore filtration efficiency decreases and can be time-consuming for large-scale processes. This can be prevented by diluting permeate or increasing flow rate of the system.

reference

Full Form	Category
Tetrafloroethylenflorua	Academic & Science
Tefe	Airport Code
Trade Facilitation Facility	Banking
Technology Flavors & Fragrance, Inc.	Business
Treasury Forfeiture Fund	Business
Traders in Financial Futures	Business
The Firm Foundation	Business
The Frag Factory	Business
True Financial Freedom	Business
Total Fuel Flow	Chemistry
Tangential Flow Filtration	Chemistry
Tropical Forest Foundation	Community
The Trinity Forum	Community
Tears For Fears	Community
The Fomunyoh Foundation	Community
Texas Finance Festival	Community
Telluride Film Festival	Community
Tacoma Film Festival	Community
Torino Film Festival	Community
Travelling Film Festival	Community
Tribeca Film Festival	Community
The Fanfiction Forum	Community
Tropical Forest Foundation's	Community
T Flip-flop	Computer Hardware
Tagged File Format	Computing
Tile File Format	Computing
Tutti Frutti	Cryptocurrency
Temporary Food Facilities	General
Total Flow Filtration	General
Thought For Food	General
Time to First Fixation	General
Texas Furry Fiesta	General
Trans Fat Free	General
Top Field First	General
Technical Fabrication Form	General
Together For Friendship	General
Trivia Fun Forum	General
Türkiye Futbol Federasyonu	General
Temporary Food Facility	General
The Ford Foundation	General
Teague Freyaldenhoven Freyaldenhoven	General
Tight Firm and Fill	General
Trefoil Factor Family	General
Transnational Foundation for Peace and Future Research	Governmental
Twitter Follower Friend	Internet
Tears For Fear	Internet
Task Force on Funding	Internet
The Friendly Few	Messaging
The Firearms Forum	Messaging
Task Force Fox	Military and Defence
Tefe, AM, Brazil	Regional
Time To Free Fall	Space Science
Temple Fly Fork	Sports
Texas Fishing Forum	Sports
Tennis For Free	Sports
Turkish Football Federation	Sports
Telegraph Fantasy Football	Sports
Tanzania Football Federation	Sports