CN1058249C - Process for making fine phosphate from mud phosphate as by product of electric heating yellow phosphorus production - Google Patents
Process for making fine phosphate from mud phosphate as by product of electric heating yellow phosphorus production Download PDFInfo
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- CN1058249C CN1058249C CN98114506A CN98114506A CN1058249C CN 1058249 C CN1058249 C CN 1058249C CN 98114506 A CN98114506 A CN 98114506A CN 98114506 A CN98114506 A CN 98114506A CN 1058249 C CN1058249 C CN 1058249C
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Abstract
The present invention discloses a technological method for preparing refined phosphorus from byproduct mud phosphorus of producing yellow phosphorus by an electrothermal method. The present invention comprises a mud phosphorus storage unit, a continuous and circular filtering unit of mud phosphorus, a filter liquor (refined phosphorus) storage unit and a filter residue storage unit. The phosphorus content of the refined phosphorus is from 99.50 to 99.98%, and the phosphorus content of filter residues is less than 15.0%. The present invention has the advantages of high safety, no pollution, wide application range for the mud phosphorus, large treating capacity, low cost and high development and application value.
Description
The present invention relates to electric heating process phosphorus production technical field, particularly relate to treatment process mud phosphate.
The phosphorus content of attached product is 30.0～99.0% material in the electric heating process phosphorus production, comprises usually said mud phosphorus and thick phosphorus, just is referred to as mud phosphorus in this professional domain.How mud phosphorus is handled is one technical barrier in producing always.1, U.S. AW company adopt to be interrupted the press filtration flow process, is 30～50% mud phosphorus with phosphorus content, under the situation that hot water thermal insulating and secluding air are arranged, adopts common plate and frame(type)filter press press filtration discontinuously, to reach the purpose made from extra care phosphorus.This flow process mainly has the following disadvantages: 1. can only handle phosphorus content and be 30～50% mud phosphorus; 2. phosphorus purified process is an intermittent operation, and production efficiency is not high; When 3. unloading filter residue, labour intensity is big, and operating environment is seriously polluted.2, the flow process of German Hirst company (light Yilan group also adopts this flow process in the Yunnan) is to be that 95～98% thick phosphorus is sent into a leaf filter with phosphorus content, and under the situation of insulation and secluding air, pressure filtration prepares smart phosphorus.The weak point of this flow process is: 1. can only handle phosphorus content and be 95%～98% industrial crude phosphorus; 2. phosphorus purified process can not be worked continuously, and can not discharge filter residue continuously; 3. must use flocculating aids just can reach phosphorus purified purpose; 4. equipment is complicated, and maintenance is difficulty.3, the less mud phosphorus treatment plant of domestic production scale adopts the distillation flow process more, be to be 10～90% mud phosphorus with phosphorus content, the personnel selection work point adds in the rotary drum of a special secluding air in batches, outside this rotary drum, directly be heated to 350 ℃ with naked light, element phosphor in it is distilled, and water is collected the phosphorus cooling again; Residue in the rotary drum is with manually shoveling out stacking.The main shortcoming of distillation flow process is: 1. flow process can not be handled mud phosphorus continuously, can only divide heat treated mud phosphorus in batches, and processing power is little; 2. mud phosphorus distills temperature required higherly, can only divide simultaneously in batches and handle, and heat-energy losses is bigger, causes energy consumption higher, the processing cost height; 3. manual operation is all adopted in reinforced, discharging, so operating environment is poor, labor strength is big; 4. handle the residue that the back forms, easily contaminate environment.
The objective of the invention is at the deficiencies in the prior art, a kind of operational safety is provided, can be continuously produced, wide accommodation, processing power is big, and energy consumption is little, the processing method of the smart phosphorus of mud phosphate system that cost is low.
Processing method of the present invention comprises following productive unit (following percentage composition is percent by weight)
1, mud phosphorus memory cell.The mud phosphorus that attached output is come in the electric heating process phosphorus production device, with being pumped to the mud phosphorus storage tank that band stirs, the mud phosphorus in the mud phosphorus storage tank is incubated and is sealed with hot water, and protects with nitrogen-sealed.
2, mud phosphorus reaches the circulating filtration unit continuously.Mud phosphorus in the mud phosphorus storage tank is delivered to continuously in the cone type filter with submerged pump and is filtered, and the cone type filter is that secluding air is airtight fully and be incubated with hot water.Mud phosphorus uninterruptedly by behind the filter, does not meet the quality product requirement as filtrate, sends filtrate back to the feed sump circulating filtration; Reach planned quality of the product as filtrate, can send into smart phosphorus finished product storage tank.
3, filtrate (smart phosphorus) memory cell.Smart phosphorus in the finished product storage tank is incubated and is sealed with hot water, and with the nitrogen-sealed protection, delivers to other deep processing device after metering.
4, filter residue memory cell.The filter residue phosphorus content returned mud phosphorus storage tank circulating filtration greater than 15% o'clock, and the filter residue phosphorus content was less than 15% o'clock; send into the filter residue storage tank that band stirs in this flow process; material is incubated and is sealed with hot water in this groove, and protects with nitrogen-sealed, and then delivers to other treatment unit.
Each unitary technology controlling and process index is:
1, mud phosphorus memory cell: mud phosphorus phosphorus content is 30.0～99.0%, 55～85 ℃ of temperature;
2, mud phosphorus reaches the circulating filtration unit continuously: 55～85 ℃ of temperature, pressure are 0.02～0.20MPa, filtrate phosphorus content 99.50～99.98, filter residue phosphorus content 10.0～15.0%;
3, filtrate (smart phosphorus) memory cell: finished product (smart phosphorus) phosphorus content 99.50～99.98%, 55～85 ℃ of temperature, pressure is normal pressure;
4, filter residue memory cell: filter residue phosphorus content 10.0～15.0%, 55～85 ℃ of temperature, pressure is normal pressure.
Fig. 1 is a process flow diagram of the present invention.
Below in conjunction with accompanying drawing and embodiment shown in the drawings, content of the present invention is further described, but content of the present invention is not limited to shown in the accompanying drawing.
Embodiment 1:
The present invention in turn includes the following steps by technical process shown in the drawings:
1. will be 60.5% mud phosphorus from the phosphorus content of phosphorus production device, with being pumped to the mud phosphorus storage tank that band stirs, 70 ℃ of storage tank temperature, mud phosphorus in the storage tank adds to be sent in the cone type filter with submerged pump and filters, 70 ℃ of filtration temperatures, pressure 0.05 MPa, filtrate phosphorus content 99.90%, filter residue phosphorus content 14.2%;
2. filtrate is delivered to smart phosphorus storage tank or is returned mud phosphorus storage tank circulating filtration, 70 ℃ of smart phosphorus storage tank temperature, and smart phosphorus is delivered to other device with submerged pump;
3. filter residue is delivered to filter residue storage tank or the mud phosphorus storage tank circulating filtration that band stirs through cone type filter internal screw drawing mechanism, 70 ℃ of filter residue storage tank temperature, and the material in the filter residue storage tank is delivered to other device with submerged pump and is handled.
Embodiment 2:
Technical process and step are with embodiment 1, and its processing condition are:
1. mud phosphorus is stored: mud phosphorus phosphorus content 30.0%, 55 ℃ of temperature;
2. mud phosphorus filters: 55 ℃ of temperature, pressure 0.02 MPa, filtrate phosphorus content 99.50%, filter residue phosphorus content 10.0%;
3. filtrate storage: 55 ℃ of temperature;
4. filter residue storage: 55 ℃ of temperature.
Embodiment 3:
Technical process and step are with embodiment 1, and its processing condition are:
1. mud phosphorus is stored: mud phosphorus phosphorus content 99.0%, 85 ℃ of temperature;
2. mud phosphorus filters: 85 ℃ of temperature, pressure 0.20 MPa, filtrate phosphorus content 99.98%, filter residue phosphorus content 15.0%;
3. filtrate storage: 85 ℃ of temperature;
4. filter residue storage: 85 ℃ of temperature.
Compared with prior art, technical scheme of the present invention has following remarkable advantage:
1, the equipment that adopts all is fully airtight and secluding air, so that the process of the smart phosphorus of mud phosphorus system very Safety, pollution-free;
2, whole flow process is that the height serialization is carried out, and filtrate and filter residue all are continuous discharges, have greatly alleviated operation Workman's labour intensity has effectively improved working environment;
3, to the wide accommodation of phosphorous material, phosphorus content is that 30～99% mud phosphorus can pass through this flow process Process, obtain smart phosphorus;
4, the device therefor volume is little, and disposal ability is big, and energy consumption is little, and cost is low.
Claims (1)
1, the processing method of the smart phosphorus of mud phosphate system in a kind of electric heating process phosphorus production is characterized in that comprising following productive unit:
1. mud phosphorus memory cell, the mud phosphorus that attached output is come in the electric heating process phosphorus production device, with being pumped to the mud phosphorus storage tank that band stirs, the mud phosphorus in the mud phosphorus storage tank is incubated and is sealed with hot water, and protects with nitrogen-sealed; Mud phosphorus phosphorus content is 30.0%～99.0%, and temperature is controlled to be 55 ℃～85 ℃;
2. mud phosphorus reaches the circulating filtration unit continuously, mud phosphorus in the mud phosphorus storage tank is delivered to continuously in the cone type filter with submerged pump and is filtered, the cone type filter is that secluding air is fully airtight and be incubated with hot water, and mud phosphorus uninterruptedly by behind the filter, does not meet the quality product requirement as filtrate.Send filtrate back to the feed sump circulating filtration, reach planned quality of the product, can send into smart phosphorus finished product storage tank as filtrate; Temperature is controlled to be 55 ℃～85 ℃, and pressure is 0.02MPa～0.20MPa, filtrate phosphorus content 99.50%～99.98%, filter residue phosphorus content 10.0%～15.0%;
3. filtrate is smart phosphorus memory cell, and the smart phosphorus in the finished product storage tank is incubated and seals with hot water, and with the nitrogen-sealed protection, delivers to other deep processing device after metering; The smart phosphorus phosphorus content 99.50%～99.98% of finished product, 55 ℃～85 ℃ of temperature, pressure is normal pressure;
4. filter residue memory cell, the filter residue phosphorus content returned mud phosphorus storage tank circulating filtration greater than 15% o'clock, the filter residue phosphorus content was sent into the filter residue storage tank that band stirs in this flow process less than 15% o'clock, and material is incubated and seals with hot water in this groove, and with nitrogen-sealed protection, and then deliver to other treatment unit; Filter residue phosphorus content 10.0%～15.0%, 55 ℃～85 ℃ of temperature, pressure is normal pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98114506A CN1058249C (en) | 1998-06-03 | 1998-06-03 | Process for making fine phosphate from mud phosphate as by product of electric heating yellow phosphorus production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98114506A CN1058249C (en) | 1998-06-03 | 1998-06-03 | Process for making fine phosphate from mud phosphate as by product of electric heating yellow phosphorus production |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1202455A CN1202455A (en) | 1998-12-23 |
| CN1058249C true CN1058249C (en) | 2000-11-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN98114506A Expired - Fee Related CN1058249C (en) | 1998-06-03 | 1998-06-03 | Process for making fine phosphate from mud phosphate as by product of electric heating yellow phosphorus production |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1058249C (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3620642A1 (en) * | 1985-06-21 | 1987-01-29 | Tenneco Canada Inc | Process for recovering elemental phosphorus from phosphorus-containing waste material |
| US4762697A (en) * | 1986-05-05 | 1988-08-09 | Tenneco Canada Inc. | Removal of phosphorus from mud |
| CN2222160Y (en) * | 1995-06-08 | 1996-03-13 | 李文双 | Equipment for yellow phosphorus refining and phosphorus mud treatment |
| CN1136532A (en) * | 1995-05-24 | 1996-11-27 | 吴江 | Process for recovering yellow phosphorus from phosphorus mud |
-
1998
- 1998-06-03 CN CN98114506A patent/CN1058249C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3620642A1 (en) * | 1985-06-21 | 1987-01-29 | Tenneco Canada Inc | Process for recovering elemental phosphorus from phosphorus-containing waste material |
| US4762697A (en) * | 1986-05-05 | 1988-08-09 | Tenneco Canada Inc. | Removal of phosphorus from mud |
| CN1136532A (en) * | 1995-05-24 | 1996-11-27 | 吴江 | Process for recovering yellow phosphorus from phosphorus mud |
| CN2222160Y (en) * | 1995-06-08 | 1996-03-13 | 李文双 | Equipment for yellow phosphorus refining and phosphorus mud treatment |
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| Publication number | Publication date |
|---|---|
| CN1202455A (en) | 1998-12-23 |
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