Filler, glass composition, and method for producing hexagonal phosphate
A technology of crystalline phosphate and manufacturing method, which is applied in the direction of phosphorus compounds, chemical instruments and methods, inorganic chemistry, etc., can solve the problem of large thermal expansion coefficient, insufficient reduction of thermal expansion coefficient of packaging materials, and damage to the fluidity of packaging material compositions. Packaging materials Solve problems such as melt fluidity and achieve excellent processability and low thermal expansion
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Embodiment
[0106] Hereinafter, although an Example demonstrates this invention, this invention is not limited to an Example. Chemical formula The synthesized hexagonal phosphate is dissolved in hydrofluoric acid and nitric acid, and the content of metal and P component contained is measured by ICP emission analysis method to calculate the chemical formula. The other species were analyzed and calculated in the same manner, and those containing crystal water were analyzed by Tg-DTA to measure the water content to determine the chemical formula, and the chemical purity related to the determined chemical formula was calculated. The generation of hexagonal crystal phase was confirmed by powder X-ray diffraction, and the crystal purity was judged according to the standard X-ray diffraction pattern, and the product of chemical purity and crystal purity was regarded as purity. The average diameter and the maximum particle diameter were measured using a laser diffraction particle size distributio...
Embodiment 2
[0115] ○Synthesis of hexagonal phosphate B
[0116] Mix 904g of α layered zirconium phosphate (Zr(HPO) with an average diameter of 2 μm with a 20L Henschel mixer 4 ) 2 ·H 2 O) NS-10TZ manufactured by Toya Synthesis and 147g of zirconium oxyhydroxide (ZrO(OH) 2 ·H 2 O), 70g of magnesium hydroxide (Mg(OH) 2 ) reagent for 5 minutes. 2 L of water was added thereto to form a slurry, which was placed in an enamel container having a square shape of 30 cm and a depth of 10 cm, and dried at 150° C. for 24 hours.
[0117] The dried block was placed in a sagger made of alumina, and sintered at 900° C. (heating time 6 hours) for 6 hours in an electric furnace. The sintered block is pulverized with a ball mill, and further pulverized into primary particles with a jet mill to obtain hexagonal phosphate B. Powder X-ray diffraction measurement was performed in the same manner as in Example 1, and it was confirmed that there were no other crystalline impurities other than hexagonal crys...
Embodiment 3
[0119] ○Synthesis of hexagonal phosphate C
[0120] Mix 904g of α layered zirconium phosphate (Zr(HPO) with an average diameter of 2 μm with a 20L Henschel mixer 4 ) 2 ·H 2 O) NS-10TZ produced by Toya Synthesis and 165g of niobic acid (including Nb 2 o 5 :H 2 O, as Nb 2 o 5 The purity is 80% by weight), the calcium hydroxide reagent of 90g 5 minutes. 2 L of water was added thereto to form a slurry, which was placed in an enamel container having a square shape of 30 cm and a depth of 10 cm, and dried at 150° C. for 24 hours.
[0121] The dried block was placed in a sagger made of alumina, and sintered for 6 hours at 1200° C. (heating time 6 hours) in an electric furnace. The sintered block is pulverized with a ball mill, and further pulverized into primary particles with a jet mill to obtain hexagonal phosphate C. Powder X-ray diffraction measurement was performed in the same manner as in Example 1, and it was confirmed that there were no other crystalline impurities o...
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