Q: What is in common and difference between Far Infrared Powder with 0.5μm granule size and Tourmaline Powder in the same size?
A: Something in common for powder whose granule size is 0.5μm: They all take tourmaline as main raw material. Difference: Aiming at different commercial use, their ingredient formula and emphasizing function is different. For example: “Far Infrared Powder” mainly enhances and emphasizes the function of far infrared ray. Tourmaline Powder mainly enhances and emphasizes the function of negative ions (amount of generating negative ions of our sample is 2000～2200pcs/s.cm3).
Q: What are the major differences of 800 & 2500meshes tourmaline powders beside PSD?
A: The main differences are Granule sizes, Amount of generating negative ions, Radiance of far infrared ray.
Q: We are still interested in your product of the tourmaline powder 2500 mesh. Since our application is related to an agricultural food processing, we hope to know about the nature of your product. Can you tell me your product specification, including tourmaline appellation %, FIR Radiance, max, allowable heavy metals (such as Ca, Pd, Hg, etc.) and free silica (quartz)?
A: You can also know about its 4 aspects of structure, technology, safety and environmental protection form the enclosed testing reports by Chinese Authority Department. Its radiance of FIR（the wavelength is 2～25μm）:≥90%; it contains no Cd, Pd, Hg, etc, but only contains microelements beneficial to human body, such as chrome, manganese, titanium and cesium, etc. It contains 36.72% of free silica (quartz).
Q:
If you do not mind ,I would like to address your responses further as follows:
1. Our XRD pattern data indicates that your tourmaline sample appears comprising of DARVITE and/or SCHORL tourmaline with the peripheral matrix of lepidolite mica and quartz, including also minor components of muscovite and albite .Could you tell us where your tourmaline source is? Yunnan mine in China? We are curious why is the silica /alumina ratio of the 2500 mesh tourmaline quite different from other 450 and 800 mesh tourmaline powders listed on your web site? Who is handling the milling process for your tourmaline powder products?
2. Where is a port near Shenzhen for exporting to U.S.A.?
3. Your measurement of FIR emittance is direct or indirect? FIR emittance of tourmaline is very important for the performance of the food process and we would appreciate your suggestions for tourmaline or other minerals with higher FIR radiance.
4. Only concern about heavy metals of your tourmaline sample is relatively high level of lead (Pb) around 32 ppm (will fax to you) via ICAP. Is there any way to reduce Pb in tourmaline?
5. The data of 36.72% SiO2 you mentioned might be the total SiO2 of tourmaline. As you know, the majority of SiO2 in tourmaline is the silicate with tetrahedral structures that is not of our concern but an impurity of free crystalline silica (AKA quartz) is strictly limited for a food process in U.S. As indicated in our XRD pattern data (will fax to you), the major pattern of free silica at two theta=26.65 degree is unfortunately overlapped with lepidolite mica and dravite tourmaline peaks of your tourmaline sample. Therefore it is rather difficult to quantify the amount of free silica in your tourmaline sample via XRD.
A:
1. Yes, our 2500 mesh tourmaline powder source is in Yunnan indeed. Moreover all of our tourmaline is brown TRAVITE tourmaline, which doesn’t contain any SCHORL tourmaline (but it’s not excluded that a little bit SCHORL tourmaline is interfused in milling process). Of cause this tourmaline powder is made by our company and 450 and 800mesh tourmaline powders are milled with SCHORL tourmaline, whose mineral is from the mid of China, so they both are quite different.
2. Shenzhen has the biggest port to USA in China-Yantian port. Our extreme majority of products are shipped to all over the world through this port.
3. FIR radiance of our tourmaline powder is tested with testing device made in Japan and by β ion emitting indirectly. Yes, understand you need fine FIR remittance of our tourmaline powder during food process, however, we need to re-adjust the raw materials and other additional materials of our tourmaline powder, it really needs time and cost.
4. Reducing the high level of lead(Pb) in our tourmaline powder is ambivalent with increasing FIR radiance of tourmaline, usually FIR radiance is related with the amount of zinc oxide in tourmaline powder, but our demiurge asked them both to live together like sisters. In this case, it is really an important and new problem for us how to balance their relationship.
5. Theoretically the SiO2 ratio in tourmaline should be in 35% ~ 42%, this is the best one. For the free crystalline silica you said, it may be caused by the quartz adulterated in tourmaline. Very unfortunately, any tourmaline contains a little quartz unavoidably, no matter how to filtrate and to eliminate. Certainly we can filtrate it carefully and responsibly before milling process, and try to reduce the impurity of quartz.
Q:
1. No Schorl in 2500 mesh tourmaline powder. It might be liked with mica (lepidolite or other mica), instead of tourmaline, right? By the way, which one of dravite or schorl emits generally higher FIR radiance over the wavelength of 5-20 microns?
2 What level of Zn do you expect in your tourmaline powder? Please note that EPA threshold of Pb for the food process in U.S. is 40ppm.
5. What kind of filtration method does your plant implement for screening quartz out prior to jet-milling?
A:
1. Our DRAVITE tourmaline really lives together with mica (Lepidolite and other micas) &quartz, there appears a overlap on your XRD pattern, which also proves it, that is to say, the peak in the XRD proves that the tourmaline we offered is indeed DRAVITE tourmaline .As for other several overlapped x-rays you marked with “L”&”Q” shows that our DRAVITE tourmaline should be higher than the one of SCHORL tourmaline.
2. Normally we do not make chemical analysis on the level of Zn in our DRAVITE tourmaline, because its content is rather small .After receiving your e-mail, our engineering technician evaluated it and got an approximate value of no more than 0.03%.
3. Progressing procedures of our tourmaline powder are as follows:
3.1. Mining & manpower selection ―select out DRAVITE tourmaline from the minerals;
3.2. Knocking selection by hand ―knock TRAVITE tourmaline ores into pieces of 15cm size and remove the mica and quartz which live together with DRAVITE tourmaline;
3.3. Machine smashing ―smash DRAVITE tourmaline into the grains of 0.5cm size through machine, the majorities among them is the grains of 1-3mm size;
3.4. Reelecting ―get rid of mineral impurity according to its specific gravity in water and increase its purity;
3.5. Airing― drying treatment;
3.6. Magnetic separation ―filtrate the DRAVITE tourmaline further by magnetic separation machine with 8000-15000 gausses and make the content of tourmaline up to 95% even higher.
3.7. Medicament selection ―add the medicament into the tourmaline after magnetic separation in order to screen the impurity out of the tourmaline (Note: we usually decide if adopt point 1.6 & 1.7 totally based on customer’s requirements for powder quality and specification);
3.8. Current dry milling ―mill the filtrated DRAVITE tourmaline motes dryly through the anticyclone from current milling and solve reuniting problem during milling (As you want 2500 mesh powder, we only need to mill it by current drying machine. If you want more fine (thin) powder, we can use wet milling for you by OEM.
3.9. Quality inspection, loading and packing.
Q: What types of mica are associated with your current dravite tourmaline, Muscovite, Illite, sericite, biotite or others?
A: Generally, the dravite tourmaline (black) with highest magnesium is associated with sericite. Our current brown tourmaline is mainly existed with granitic and accompanied with muscovite.
Q: Where is the majority of Fe (Fe2O3 = 4.77% from your analytical data) originating from, Schorl tourmaline or micas?
A: Brown tourmaline contains Fe itself. It is without too much relation with mica
Q: What level of quartz is expected from the tourmaline? Do you have cost-effective methods for selecting of quality tourmaline ores and subsequently additional filtration to reduce impurities (quartz, Pb, etc.) for our tourmaline powder product?
A: The content (rate) of silicon is settled in tourmaline unless change the original (producing area) and variety. Impurities of Pb can not be changed. It only can be reduced by dispelling mica and impurities. The way is:
a. select in a right way and dispel impurities
b. reduce the pollution during the process
c. change some technics
However, every tourmaline has steady chemic ingredients and can not be changed at random for that means change the variety once changed the chemic ingredients.
The powder with high FIR radiance, no problem, we can do that, but need time.
Q: Could you advise us what’s the international tariff code number for your tourmaline powder product?
A:The H.S code is 25309099.90 for tourmaline powder we used here.
Q:If no black tourmalines are admixed with dravite, what causes much darker color in your recent tourmaline sample, compared to the original tourmaline powder sample?
A:The sample we sent you last time, in fact, includes about 60% black tourmalines, 30% ~ 40% dravite. So, it looked a little darker. But, the color you wanted is not a problem. The key is the function and ingredients percentage of the powder.
Q: Any words about other natural minerals for the food fermentation? What degree of milling is required to reduce the bulk density of the tourmaline powder below 1.0 g/cc?
A:To be frank, we are lack of study and experience of inorganic mineral for food additives and food fermentation. Maybe such as tourmaline, maifan stone etc. inorganic natural minerals helpful for human body, Bentonite, Vermiculite powder. For their little proportion with special function, it maybe can reduce its density of tourmaline powder. You can have a try.
Q:Do you know something about the antibacterial mechanism of Tourmaline Powder? Can you send it to me?
A: The Antibacterial Mechanism of Tourmaline
Tourmaline Minerals is a kind of multifunctional environment-protection material which can benefit human health, its antibacterial mechanisms are as follows:
1. According to studies we found that tourmaline materials of different origins have the spontaneous polarization of different degree. And the antibacterial capability is relative to the spontaneous polarization intensity. The Mg tourmaline and Fe tourmaline, which are produced from Pegmatite with higher degree of crystallinity, have higher spontaneous polarization intensity, and consequently the best antibacterial capability. The smaller the granularity is, the better antibacterial capability it has, when the granularity is 0.57mm, the antibacterial rate is 100%. The strong Electric polarity means strong electric field. The strong electric field would effect the water molecule in the air and produce plenty of negative ion, which can restrain the growth of bacteria and germina.
2. The strong electric field produced by tourmaline can affect the organic materials directly, such as absorbing and decomposing the organic pollutants formaldehyde etc.
3. The effective ingredients such as Ag+, Cu2+ in tourmaline minerals can be dissolved in water and reach the antibacterial effects.
Furthermore, tourmaline can act as good carriers for effective antibacterial components, and reach the integration of antibacterial capability, environment-protection and healthcare capability. The antibacterial capability of the tourmaline materials, which are treated by rare earth treatment, the carrying of metal ions and the Nano TiO2 multiplex treatment, can reach 99.99%, and it is far higher than the untreated tourmaline with the same granularity. Through the Negative Ion Producing Inspecting Test, we found that the negative ions’ generation of tourmaline treated by rare earth is obviously improved. And through the ESP testing method we found that, under the condition of no ultraviolet irradiation, the tourmaline complexly treated by TiO2 can obviously produce more effective antibacterial component Hydroxyl Free Radicle. Now we can go to the conclusion that these three methods can all improve the antibacterial capability of tourmaline materials.
Q:Is 2 nm or 2 μm of the Tourmaline Powder (6000mesh) I purchased? About its color, I saw it from the price list: light gray, white. It the goods you arranged for me white? Because I hope to mix with the TiO2 powder, and also the customer hopes it would be white. According to your opinion, is this mixture dangerous to the Photocatalyst function of TiO2?
A:The Tourmaline Powder you purchased is of 2μm. Since its color is white, with light gray and yellow. After its mixture with TiO2 powder, its color will still be white. But the white degree won’t be 100%. This mixture would not affect the Photocatalyst effects of TiO2.
Q: Which Tourmaline Powder can be used for cultivation of plants?
A: Tourmaline powder, 100-300meshes
Q:Which Tourmaline Powder can be used for manufacturing of ceramic products?
A:Let’s take producing ceramic ball for example, 400-500meshes is enough. The higher the value of mesh is, the better the effect is.
Q: Which tourmaline powder would you recommend for the tourmaline purple teapot listed in your program?
A: Tourmaline powder, 500-1500meshes. And the powder which exceeds 1500meshes would be better, but it costs more too.
Q: Is it possible to get the Tourmaline Ceramic Powder with a Purity of 95-98% as a 200nm specification? What about price and packaging volume then?
A: Yes, we can produce the Tourmaline Ceramic Powder you designated.
Purity≥98%; Specification ≤200nm. Price: FOB Shenzhen, USD20.80/kg
Q:The molecules move around so how can they be any cluster of molecules, hydrogen bonds?
A:
1) when the temperature = 0 degree Celsius,
The atoms, molecules stop librating and form perfect crystal. But there is no perfect crystal exists in real life.
2) When T > 0 degree Celsius,
The atoms, molecules start to move around, some molecules move with high speed and leave the primary positions so that forms some Vacancies, others back to the Vacancies, the shape of crystal doesn’t staying as whole any more; this phenomena become more pronounced if the temperature is higher. Though single molecule move around without stop, but the consistence is still small and the energy is little, it can’t change the structure of the water. So water in liquid is big clusters of macromolecule.
By Van-der Waals Forces and weak hydrogen bonds water molecules combine into macromolecule group structure water. Some hydrogen bonds connect while disconnecting. The weak hydrogen bonds combined into big cluster of water molecules is a dynamic combination; it only lasts 10-12 seconds. The bulk of the cluster is an average value. The macromolecule cluster contains about 30- 40 molecules in hothouse.
By using technology of FIR, Strong Magnetic Field, Electric field, Ultrasonic etc, it can make the macromolecule group cluster water become micro-molecule group water which only contains 4- 8 small water molecules, which benefits to health of human body and other lives. Like the picture above, the macromolecule cluster water changeed to micro-molecule cluster water.
Tourmaline Sand and Granule has the heat-release electricity effect and pressure-release electricity effect, when the environment changing, it will exchange the energy with the environment and emit FIR radial.
Static electric field exists around the Tourmaline Sand and Granule. The spontaneous electrode of Tourmaline is permanent and doesn’t influence by outside electric field. The spontaneous electropolar value has nothing to do with Temperature.
Er=（2/3）E0（a/r） 3. (a is the radii of tourmaline mote; r is the distance away from the surface of Tourmaline.)
Because the Tourmaline Sand and Granule has the FIR and the Electric field effect, it could make the macromolecule group to smaller one.
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