Microza responds to various challenges in the inorganic colloids purificaiton
Provide sufficient filtration precision
Privide an efficient desalination and purification system
Provide compact system that can both purify and concentrate slurry in one unit
Realize continuous purduction instead of batch purduction
Improve the work environment with the closed purification system
Why Microza?
Characteristics of Microza UF membrane module
Ordinary hollow fiber ultrafiltration (UF) membrane has its separation performance only on a very thin layer (skin layer) on either the inner or outer surface of the membrane (single-skin structure). On the other hand, all Microza UF membranes have separation performance on both the inner and outer sides of the hollow fiber membrane (double-skin structure).
During the purification and concentration process, the inner surface of the hollow fiber membrane is subjected to load. The resultant abrasion damage may lead to leakage of slurry. However, Microza has an outer surface also having a skin layer with a separation performance similar to the inner surface, and such damage does not result in sudden leakage.
Characteristics of Microza MF membrane module
・The hollow fiber microfiltration (MF) membrane is produced using polyvinylidene difluoride (PVDF) manufactured by thermally induced phase separation (TIPS). Ordinary PVDF membranes are manufactured using non-solvent-induced phase separation (NIPS). PVDF membrane by TIPS is superior in durability compared to PVDF membrane by NIPS.
・When a membrane module is used for filtering slurry that contains oxidizing agent or is repetitively washed with chemicals that contain an oxidizing agent, PVDF membrane module manufactured by NIPS is susceptible to damage and increased risk of leakage.On the other hand, Asahi Kasei’s PVDF membrane modules are all spun using TIPS and are thus highly resistant to chemicals and have high strength.
・There are hollow fibers of inner diameters of 1.1 mmφ, 1.4 mmφ, and 2.6 mmφ. Purification and concentration of micron-size and emulsion for chemical industrial applications can be achieved with fibers of 1.4 mmφ, and fibers of 2.6 mmφ are feasible for the purpose of high concentration.
Our Products
Pencil-scale and laboratory-scale testing modules
Small-scale hollow fiber membrane modules for testing samples of small volumes
Ultrafiltration membrane: AP and SP series
AP and SP series are ultrafiltration (UF) membrane modules of high sanitation performance and are widely used in food, pharmaceutical, and bioprocess applications. Both circulation and filtrate-side nozzles are connected to the pipes of the filtration systems with ferrules.
Microfiltration membrane
Microfiltration (MF) membranes of highly durable polyvinylidene difluoride (PVDF) and polyethylene (PE) that apply to a wide range of pH are available.
Case studies
- Chemical company A
Reduce desalination time
- Background
- The existing facility used specific gravity difference separation but was poor in treatment efficiency. The manufacturer was investigating the introduction of a new separation process.
- Proposal
- We proposed a Microza system for more efficient desalination and purification.
- Results
- The manufacturer could reduce the time required for desalination.
- Chemical company B
Reduce desalination time
- Background
- The manufacturer developed a new product that required deacidification and purification.
- Proposal
- We proposed a Microza system for more efficient and high-yielding deacidification and purification.
- Results
- The manufacturer achieved mass production of high-purity products, where the deacidification and purification process was incorporated.
- Chemical company C
Mass production of high-purity products including desalination process
- Background
- The manufacturer developed a new product that required deacidification and purification.
- Proposal
- We proposed a Microza system for more efficient and high-yielding deacidification and purification.
- Results
- The manufacturer achieved mass production of high-purity products, where the deacidification and purification process was incorporated.
- Chemical company D
High-degree concentration of colloidal silica
- Background
- The manufacturer required a system that highly condenses colloidal silica.
- Proposal
- We proposed a Microza filtration system that can achieve a high-degree concentration.
- Results
- The manufacturer achieved high-degree concentration of colloidal silica.
- Chemical company E
Efficient pigments concentration
- Background
- The manufacturer required a system for condensing pigment dispersion, from which impurities are removed in advance, to a specified concentration.
- Proposal
- We proposed a Microza system for efficient and highly precise filtration.
- Results
- The manufacturer achieved an efficient concentration of pigments.
