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1. Cattle manure and calcium superphosphate were main polluting material.

2. However, the Ca-Mg-P was slightly inferior to calcium superphosphate, but no significant difference was showed.

3. Linsuanyian , Linsuaneran, of Hefei, the mixed fat, calcium superphosphate, salt fertilization manufacture, marketing.

4. A kind of new typer mixing reacter with an injection tube and a baffled chamber for producing calcium superphosphate was introduced.

5. Analyzed the causes effect factors on slurry capacity and quality in the production of simple calcium superphosphate by wet-process, loading capacity and graduation of bowl mill also are discussed.

6. In this paper, quick determination of the content of the effective phosphorus in the new calcium superphosphate by means of potentiometric titration has been researched.

7. According to soil fertility and soil structure in the loess plateau, the experiment of fertilizer amount was carried out with ammonium nitrate and calcium superphosphate.

8. The mechanism was Studed by m SPectroscopy that paper making Waste Water and phosphatic manure Waste Water control calcium Superphosphate moisture.

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9. In this paper, a new type of mixing reaction unit composed of injector and baffled chamber, which is used in production of calcium superphosphate.

10. Through a series of laboratory and small pilot scale continuous experiments, the feasibility of urea - calcium superphosphate production with Yichang phosphorous ore has been proved .