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Production technology for extracting vanadium and molybdenum from spent aluminum base molybdenum catalyzer using wet method

A production process and catalyst technology, applied in the field of metallurgy, can solve problems such as waste of molybdenum resources, and achieve the effects of low production cost, simple process and advanced technology

Inactive Publication Date: 2004-12-29
四川川投峨眉铁合金(集团)有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But when adopting above-mentioned method to carry out leaching carbonation reaction and separate and produce the leaching liquid of vanadium, but the valuable molybdenum element of content is about 4.5% with calcium molybdate CaMoO 4 The form of sediment is solidly stored in the residue and discharged together with the residue, which is a great waste of valuable molybdenum resources

Method used

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  • Production technology for extracting vanadium and molybdenum from spent aluminum base molybdenum catalyzer using wet method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] It proceeds in the following steps:

[0050] (1) Raw material ball milling: After the waste aluminum-based molybdenum catalyst material is subjected to surface deoiling treatment, it is sent into a ball mill to be ball-milled into powder, and the particle size of the waste aluminum-based molybdenum catalyst powder is controlled to be 80 mesh;

[0051] (2) Weighing and mixing: according to the specified ratio of raw materials (by weight):

[0052] Waste aluminum-based molybdenum catalyst (converted to contain V 2 o 5 measure) 1 part,

[0053] Soda ash (Na 2 CO 3 ) 0.4 parts,

[0054] Glauber's salt (Na 2 SO 4 ) 0.4 parts,

[0055] Industrial salt (NaCl) 0.4 parts,

[0056] Measure and weigh the materials separately and send them into the screw mixer to mix them into mixed materials;

[0057] (3) Sodium roasting: the mixed material is sent into the rotary kiln by the disc feeder for sodium roasting reaction, the roasting temperature is controlled at 1000°C, and ...

Embodiment 2

[0085] It proceeds in the following steps:

[0086] (1) Raw material ball milling: After the waste aluminum-based molybdenum catalyst material is subjected to surface deoiling treatment, it is sent into a ball mill to be ball-milled into powder, and the particle size of the waste aluminum-based molybdenum catalyst powder is controlled to be 120 mesh;

[0087] (2) Weighing and mixing: according to the specified ratio of raw materials (by weight):

[0088] Waste aluminum-based molybdenum catalyst (converted to contain V 2 o 5 measure) 1 part,

[0089] Soda ash (Na 2 CO 3 ) 0.65 parts,

[0090] Glauber's salt (Na 2 SO 4 ) 0.65 parts,

[0091] Industrial salt (NaCl) 0.65 part,

[0092] Measure and weigh the materials separately and send them into the screw mixer to mix them into mixed materials;

[0093] (3) Sodium roasting: the mixed material is sent into the rotary kiln by the disc feeder for sodium roasting reaction, the roasting temperature is controlled at 1050°C, a...

Embodiment 3

[0121] It proceeds in the following steps:

[0122] (1) Raw material ball milling: After the waste aluminum-based molybdenum catalyst material is subjected to surface deoiling treatment, it is sent into a ball mill to be ball-milled into powder, and the particle size of the waste aluminum-based molybdenum catalyst powder is controlled to be 40 mesh;

[0123] (2) Weighing and mixing: according to the specified ratio of raw materials (by weight):

[0124] Waste aluminum-based molybdenum catalyst (converted to contain V 2 o 5 measure) 1 part,

[0125] Glauber's salt (Na 2 SO 4 ) 0.85 parts,

[0126] Measure and weigh the materials separately and send them into the screw mixer to mix them into mixed materials;

[0127] (3) Sodium roasting: the mixed material is sent into the rotary kiln by the disc feeder for sodium roasting reaction, the roasting temperature is controlled at 950°C, and the roasting time is 2 hours.

[0128] The following oxidation-sodium roasting reaction ...

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Abstract

The wet production process of extracting vanadium and molybdenum from waste aluminum-base molybdenum catalyst includes successively ball milling material, mixing material, roasting to sodidize, wet milling and hot soaking, dephoshorization to purify, deposition to extract vanadium and molybdenum successively. The present invention is developed on the basis of weight vanadiuim extracting process and apparatus and realizes the simultaneous extraction of valuable vanadium and molybdenum.

Description

Technical field: [0001] The invention relates to the technical field of metallurgy, in particular to a production technology for separating and extracting metals by a wet method, in particular to a production technology for extracting vanadium and molybdenum from waste aluminum-based molybdenum catalysts by a wet method. Background technique: [0002] We know that vanadium and molybdenum are very important alloying elements. Due to the very good mechanical properties of vanadium and molybdenum alloy materials, they are widely used in many technical fields such as machinery manufacturing, casting processing, aerospace, instrumentation, military industry and other high-tech. It occupies an extremely important position in my country's national economic construction and national defense military construction. However, objectively, my country's vanadium and molybdenum resources are scarce, so how to develop and utilize precious vanadium and molybdenum resources scientifically, ra...

Claims

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Application Information

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IPC IPC(8): C22B3/04C22B7/00
CPCY02P10/20
Inventor 罗发应邓小东李敏王治强罗瑾李科
Owner 四川川投峨眉铁合金(集团)有限责任公司
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