Sintered porous Titanium filter elements is made of titanium powder as raw material, through the process of powder classification, molding, sintering, mechanical welding process and so on.
The porosity and the filtration precision can be adjusted in a wide range, it is widely used in the pharmaceutical industry, water treatment industry, food industry, biological engineering, chemical industry, petrochemical industry, metallurgy industry and gas purification, it is a new type of filter material.
Sintered porous Titanium filter is made with the method of powder metallurgy, A large random or directional pores were distributed in interior. Internal pores may be designed to various shapes such as foamed type and honeycomb type, and so on. The filtration mechanism is typical deep filtration.
1、The pore size is uniform, the pore shape is stable, and the separation efficiency is high。
4、Good chemical stability, acid and alkali corrosion resistance (PH2-12), oxidation resistance。
5、No particles fall off, no secondary pollution , meet the requirements of food hygiene and pharmaceutical GMP
6、Good mechanical properties, low differential pressure, large flow, pressure filtration and pumping filtration workable, simple operation。
8、Online regeneration, easy cleaning, long service life（Generally several times the membrane filter）
10、Non-magnetic and non-toxic, and has a good compatibility with human tissue and blood, is widely used in the pharmaceutical industry, food industry and water treatment industry
六、precautions for use：
1、Must be used vertically, before the installation of the shell, you must check whether the gasket is in place or not, misplacement and leakage is strictly prohibited
2、For the threaded interface, avoid excessive force when installing nut
3、After the shell is installed, it should be cleaned for 15 minutes to 20 minutes.
4、The normal working pressure should be controlled at 0.15 ~ 0.25Mpa. If the pressure increases, it will greatly increase the difficulty of back flushing,, which will effect of back flushing. There must be 3 ~ 5 minutes of low pressure starting time before the normal use, that is, the pressure must gradually increase to 0.15 ~ 0.25Mpa, transient application of voltage is strictly prohibited
5、Suggest back flushing every 8hous, time，10 ~ 20 minutes for each time, pressure should be gradually pressurized to 0.25 ~ 0.3Mpa.
6、when the blockage is serious and the effect of back flushing is not obvious, ultrasonic cleaning or chemical cleaning (acid pickling and alkali washing) should be adopted
七、Cleaning method：
According to the pollution situation and physical and chemical properties of titanium,，the physical and chemical methods can be used for the regeneration and cleaning。The physical methods includes backflushing by clean liquid, blowback by clean gas and ultrasonic cleaning. Chemical methods are mainly used dilute acid, dilute alkali, oxidant, surfactants, enzymes and other cleaning agents. The above methods can also be used interchangeably.
According to common applications, cleaning methods are as follows：
1、In the field of pharmaceutical and chemical industry, it is necessary to adopt the method of reverse blowing, backwashing and ultrasonic cleaning together frequently to achieve the best cleaning effect
2、In water industry, because the surface of the filter is mostly non water soluble salts and oxides, generally immersed in 5% nitric acid is enough, ultrasonic cleaning is not required
3、In stock solution filtration, the following methods are used for cleaning according the chemical properties of pollutants：
（1）Alkali washing：Soak the filters in analytically pure 3-5 % sodium hydroxide for 30 to 60 minutes at temperature of 40 ℃, if processed in ultrasonic cleaner would be better. Then washing it using deionized water or water for injection，and measuring conductivity. At last, blow-dry it with clean air with pressure large than 0.4Mpa.
（2）Pickling：Soak the filters in the 5% nitric acid solution for more than 8hours at temperature of 40℃, if processed in ultrasonic cleaner would be better. Then washing it using deionized water or water for injection，and measuring conductivity. At last, blow-dry it with clean air with pressure large than 0.4Mpa.
（3）Elution with surfactant for organic pollutants, elution with enzyme detergent for cell debris contamination, elution with high-concentration citric acid in food and drink industry.
These methods can be used alone, can also be used interchangeably with each other. If possible, using ultrasonic cleaner together would be better.
Attention：filters should be cleaned often online by backwashing and back flushing.
八：Application：
With its unique properties, titanium filter cartridges is widely in the pharmaceutical, water treatment, food industry, biological engineering, chemical, petrochemical, metallurgical industry and gas purification field.
1．Liquid-solid and gas-solid separation
Liquid-solid separation：
Electronics industry--Pre filtration of reverse osmosis system and deionized water system
Food industry--- Filtration of beverage, brewing wine and mineral water
Petrochemical industry：dead-end filtration of petroleum products and filtration of chemical carbon base liquid, recovery and filtration of organic solution of alcohol, filtration of gas oil and cycle oil
Environmental protection and sewage treatment
Pharmaceutical industry：Large infusion, injection , decarbonization, seawater desalination
gas-solid separation
Filtration of impurities in air of various air compressor
aseptic air filtration in beer, pharmaceutical, brewing industry
High pressure air filtration in aviation and transportation
Mixing and purification of gases in chemical fiber
dry-dedust of acid gas in pharmaceutical industry
Gas filtration and catalytic gas filtration in petroleum industry；
Dedusting of low temperature gas in environmental protection industry
2．Filtration in petrochemical industry：
Recovery of catalyst, the recovery of solution, and the refining of finished products in the production process of ketones, esters and amines
Catalyst recovery and product refinement for ethylene glycol and phthalic anhydride
Purification filtration and removal of activated carbon particles in the process of dimethyl phthalate
3. Filtration in fine chemical：
Recovery of noble metal catalyst in the synthesis of pharmaceutical intermediates such as vitamin A and E
Recovery of noble metal catalyst the production of rosin derivatives, derivatives of linalool and spices
Recovery of noble metal catalysts in the production process of amine and alkyl piperidine
4．Fine filtration in food industry
Refining of industrial steam, fine filtration of sugar and wine
Filtration of residual yeast and diatomite in beer production。
Removal and recovery of catalyst in various hydrogenation industries
5．Application in environmental protection and sampling
Filtration and enrichment of particulate solids。
Dust removal of high temperature flue gas
Filtration of gas and liquid sample in chromatographic analysis
6．Filtration in power plant
Isolated ion exchange resin and desalination
Filtration and collection of waste ion exchange resins
7．Fine filtration in electronic industry：
Removal of ions of industrial water，purification of phosphorus fluid。
Refine of magnetic tape paste and high speed printer ink
8．Fine filtration in textile industry
Fine filtration of synthetic fiber monomers and polymers。
Matching filter element of spinning head
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