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Method and equipment for raising hydrophosphorus, effective phosphorus content of heavy calcium product made by slurry method

A technology of water-soluble phosphorus and available phosphorus, which is applied in the direction of phosphate fertilizer, superphosphate, fertilization equipment, etc., can solve the problem of the decrease of total phosphorus, water-soluble phosphorus and available phosphorus, which affects the normal production and operation of enterprises, and the reaction decomposition rate of heavy calcium slurry Reduce and other problems, to achieve the effect of extending the continuous operation time of equipment, significant economic benefits, and reducing scarring and clogging

Inactive Publication Date: 2009-11-04
云南云天化国际化工有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Heavy calcium is the product of phosphoric acid to decompose phosphate rock powder. Due to the simultaneous decline in the quality of phosphoric acid and phosphate rock powder, the reaction decomposition rate of heavy calcium slurry decreases, and the content of total phosphorus, water-soluble phosphorus and available phosphorus in the product decreases, resulting in enterprises in the international market. The sales share of the market has declined, which has affected the normal production and operation of the enterprise

Method used

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  • Method and equipment for raising hydrophosphorus, effective phosphorus content of heavy calcium product made by slurry method
  • Method and equipment for raising hydrophosphorus, effective phosphorus content of heavy calcium product made by slurry method

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Embodiment 1

[0017] As shown in the attached figure, two similar reactors 3 and 4 are connected in series between the original two slurry reactors 1 and 2 and the slurry pump, and the effective volume of the reactors is 80m 3 . Slurry passes through 4 reactors in sequence, stays in each reactor for 2 hours to make the total reaction time reach 8 hours, and finally is transported to the granulator by the slurry pump. Gained product is tested, and its result is shown in Table 1.

Embodiment 2

[0019] Repeat embodiment 1, have following difference: the effective volume of each reactor is 100m 3 , The slurry was left to react for 2.5 hours in each reactor, making the total reaction time reach 10 hours. Gained product is tested, and its result is shown in Table 1.

Embodiment 3

[0021] Repeat embodiment 1, have following difference: the effective volume of each reactor is 120m 3 , The slurry was left to react for 3 hours in each reactor, making the total reaction time reach 12 hours. Gained product is tested, and its result is shown in Table 1.

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Abstract

A process and apparatus for increasing the content of water-soluble phosphorus and active phosphorus in the heavy calcium carbonite particles prepared by slurry method features that additional 1-3 reactors are used for the slurry reaction in order to elongate the reaction time by 8-12 hr for full decomposing of phosphorus ore.

Description

technical field [0001] The invention belongs to the technical field of chemical fertilizer production, and in particular relates to a method capable of effectively increasing the content of water-soluble phosphorus and available phosphorus in heavy calcium products produced by slurry method. At the same time, the invention also relates to a device for realizing the method. Background technique [0002] The existing heavy calcium production methods mainly include chemical conversion method and slurry method. Among them, the slurry method heavy calcium products are favored by users at home and abroad because of their round and uniform particles, high particle strength, and good appearance quality. [0003] Yunnan Yuntianhua International Chemical Co., Ltd. Furui Branch introduced the production technology of Ross cape slurry method granular heavy calcium to build a slurry method heavy calcium plant. It is the only large-scale slurry method heavy calcium production device in C...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C05B11/10C05B1/00
Inventor 张应虎胡正荣张家全罗纯斌蔡学红张丽美席涛
Owner 云南云天化国际化工有限公司