Unlock instant, AI-driven research and patent intelligence for your innovation.

Selective separation method for chemical phases of orpiment and realgar

A separation method and technology for chemical substances are applied in the field of chemical phase selective separation of orpiment and realgar, and can solve the problem of obtaining orpiment and realgar quantitative value, unfavorable industrial production and application of orpiment and realgar arsenic, and inability to obtain orpiment and realgar respectively. Content and other issues, to achieve the effect of simple and easy method, suitable for promotion

Active Publication Date: 2015-07-01
陕西省地质矿产实验研究所有限公司
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] In the above analysis process, orpiment and realgar are in the same phase, and the contents of orpiment and realgar cannot be obtained separately. For arsenic deposits dominated by orpiment and realgar, the amount of orpiment and realgar cannot be obtained by means of chemical phase analysis, which is not conducive to Instruct the industrial production and application of orpiment and realgar arsenic ore

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Selective separation method for chemical phases of orpiment and realgar
  • Selective separation method for chemical phases of orpiment and realgar

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] This embodiment includes the following steps:

[0037] Step 1. Leaching of arsenic oxide: Soak 0.2 g of realgar-orpiment type ore powder with a particle size of 0.074 mm to 0.10 mm in 100 mL of hydrochloric acid solution with a concentration of 2 mol / L, shake at room temperature for 1.5 h, and filter to obtain the first filter. cake and the first filtrate, the first filter cake is washed with water, and the washing liquid and the first filtrate are combined to obtain 250mL arsenic extract;

[0038] Step 2, leaching of orpiment: Soak the first filter cake washed in step 1 in 100 mL of ammonia solution with a concentration of 4 mol / L, shake it in a water bath at 35°C for 6 hours, and filter to obtain the second filter cake and the second filtrate , washing the second filter cake with ammonia water with a mass concentration of 1.4%, combining the washing liquid and the second filtrate to obtain 250 mL orpiment extract;

[0039] Step 3, leaching of realgar: Soak the second...

Embodiment 2

[0048] This embodiment includes the following steps:

[0049] Step 1. Leaching of arsenic oxide: soak 0.5 g of realgar-orpiment type ore powder with a particle size of 0.074 mm to 0.10 mm in 100 mL of hydrochloric acid solution with a concentration of 1 mol / L, shake at room temperature for 2 hours, and filter to obtain the first filter cake and the first filtrate, washing the first filter cake with water, combining the washing liquid and the first filtrate to obtain 250mL arsenic extract;

[0050] Step 2, leaching of orpiment: Soak the first filter cake washed in step 1 in 100 mL of ammonia solution with a concentration of 2 mol / L, shake it in a water bath at 30°C for 5 hours, and filter to obtain the second filter cake and the second filtrate , washing the second filter cake with ammonia water with a mass concentration of 0.8%, combining the washing liquid and the second filtrate to obtain 250 mL orpiment extract;

[0051] Step 3, leaching of realgar: Soak the second filter ...

Embodiment 3

[0053] This embodiment includes the following steps:

[0054] Step 1. Leaching of arsenic oxide: Soak 0.4 g of realgar-orpiment type ore powder with a particle size of 0.074 mm to 0.10 mm in 100 mL of hydrochloric acid solution with a concentration of 3 mol / L, shake at room temperature for 1 hour, and filter to obtain the first filter cake and the first filtrate, washing the first filter cake with water, combining the washing liquid and the first filtrate to obtain 250mL arsenic extract;

[0055] Step 2, leaching of orpiment: Soak the first filter cake washed in step 1 in 100 mL of ammonia solution with a concentration of 5 mol / L, shake it in a water bath at 40°C for 5.5 hours, and filter to obtain the second filter cake and the second Filtrate, washing the second filter cake with ammonia water with a mass concentration of 2%, combining the washing liquid and the second filtrate to obtain 250mL orpiment extract;

[0056] Step 3, leaching of realgar: Soak the second filter cak...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
particle sizeaaaaaaaaaa
Login to View More

Abstract

The invention discloses a selective separation method for chemical phases of orpiment and realgar. The selective separation method comprises the following steps: (1) soaking arsenic-containing ores in hydrochloric acid solution, oscillating under the room-temperature condition, filtering to obtain a first filter cake and first filtrate, washing the first filter cake with water, and mixing washing liquid and the first filtrate to obtain arsenolite extracting solution; (2) soaking the washed first filter cake in ammonia water solution, oscillating under the water-bath condition, filtering to obtain a second filter cake and second filtrate, washing the second filter cake with ammonia water, and mixing the washing liquid and the second filtrate to obtain orpiment extracting solution; and (3) soaking the washed second filter cake in sodium hydroxide solution, oscillating under the boiling-water-bath condition, then adding iodine, further oscillating, cooling, and filtering, thus obtaining a third filter cake and third filtrate, washing the third filter cake with water, mixing the washing liquid and the third filtrate to obtain realgar extracting solution. The selective separation method disclosed by the invention realizes selective separation of the orpiment and the realgar and is beneficial for guiding industrial production and application of arsenic-containing ores such as the orpiment and the realgar.

Description

technical field [0001] The invention belongs to the technical field of chemical phase analysis, in particular to a chemical phase selective separation method of orpiment and realgar. Background technique [0002] Arsenic exists in nature mainly in the states of sulfide, iron sulfide, oxide, arsenate and natural arsenic. The sulfides are realgar (AsS), orpiment (As 2 S 3 ); iron sulfide has arsenopyrite (arsenopyrite FeAsS); oxide (or arsenate) has arsenic bloom (As 2 o 3 ), white arsenite (As 2 o 3 ), scorodite (FeAsO 4 2H 2 O) etc. Among them, the ones with industrial value are mainly arsenopyrite, followed by realgar and orpiment. Realgar is also called stone yellow, smoked yellow, etc. It is orange-red, brittle in nature, has a peculiar smell, and has the effects of detoxification and insecticide. Orpiment is also called Kunlun yellow and arsenic yellow. Its color is lighter than that of realgar, and its nature is brittle. Its medicinal properties are also simil...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G01N1/28
Inventor 董亚妮裴若会熊英谢光晋崔长征
Owner 陕西省地质矿产实验研究所有限公司