A method for preparing high magnesium ammonium phosphate mineral salts, which is characterized by single or mixed acid-soluble acid with sulfuric acid made with calcium phosphate precalciner. After pre-decomposing the high-magnesium phosphate rock, after separation, the solid directly enters the phosphoric acid extraction system to obtain phosphoric acid, and the obtained wet-process phosphoric acid is prepared by a conventional method well known to those skilled in the art; the mother liquor after pre-decomposing the phosphate rock is chemically used. Precipitating phosphorus, magnesium, calcium and other elements beneficial to crops, the terminal pH is 7.5 ~ 10.0, the substance after precipitation is mainly 枸 soluble fertilizer, this part of fertilizer can be mixed with ammonium phosphate to become a medium element (magnesium, calcium , sulfur, etc.) of multi-component fertilizer, product quality can reach the requirements of the first-class ammonium phosphate. Compared with the prior art, the invention can effectively utilize the high-magnesium medium-low grade phosphate rock in China to produce ammonium phosphate, etc.; at the same time, the pre-treatment work of the high-magnesium phosphate rock is saved, the phosphorus loss is reduced, and the total of the engineering device is greatly reduced. investment.
FantasView Retro-Fit Snow (winter) wiper blades feature a protective rubber boot to help prevent snow and ice from clogging the blade. This allows the blade to maintain even pressure to provide a clean wipe and enhance driving visibility. Winter Wiper Blades are constructed of high-grade speed; and extruded rubber for durability and performance in wet, wintry weather.
This exceptional blade fights freeze-up, streaking, and smearing and its winter jacked design resists snow and ice build-up.
- Rugged Steel Frame Construction Will Not Twist, Warp or Crack
- Fully Enclosed Wiper keeps Out Ice, Sleet and Snow.
- Extra Large Rubber Wiper Covers More Surface Area
- Quick and Easy installation
- FantasView has added the world's only winter wiper blades that fit the Most of New OE wiper arms, tha's can fit more than 98% cars around the world.
- Size Available: 11"~26"
Retro-Fit Snow Wiper Blades,Retro-Fit Winter Wiper Blades,Retro-Fit Snow Windscreen Wiper Blades,Retro-Fit Snow Windshield Wiper Blades
NINGBO FANTASVIEW WIPER BLADES CO., LTD. , http://www.fantasview.com