CN102115043A - Method for preparing sulfide and mixed product of sodium sulfide and potassium sulfate from manganese-containing waste liquid - Google Patents

Abstract

The invention provides a method for preparing sulfides and a mixed product of sodium sulfide and potassium sulfate from a manganese-containing waste liquid. The manganese-containing waste liquid generated during the production of hydroquinone is filtered to form a clear filtrate containing manganese sulfate, ammonium sulfate and sulfuric acid and a filter cake containing simple substance residues; the filter cake containing the simple substance residues reacts with an excessive amount of sulfuric acid to form a liquid containing calcium sulfate, magnesium sulfate, zinc sulfate, sodium sulfate, aluminum sulfate, cadmium sulfate and nickel sulfate; then the liquid mixes and reacts with a potassium sulfide liquid to form a mixed liquid of potassium sulfate and sulfides including calcium sulfide, magnesium sulfide, zinc sulfide, sodium sulfide, aluminum sulfide, cadmium sulfide and nickel sulfide; the mixed liquid is filtered to form a filter cake containing a sulfide mixture composed of calcium sulfide, magnesium sulfide, zinc sulfide, aluminum sulfide, cadmium sulfide and nickel sulfide and a filtrate containing sodium sulfide and potassium sulfate; the filter cake containing the sulfide mixture is washed, dried, fractionated and pulverized to obtain a sulfide product; and the filtrate containing sodium sulfide and potassium sulfate is distilled under a reduced pressure and cooled to crystallize, to obtain a mixed product of sodium sulfide and potassium sulfate.

Description

With containing the method that the manganese waste liquid prepares sulfide and sodium sulphite and vitriolate of tartar mixing prod

Technical field

The present invention relates to contain the technical field of the improvement and the utilization of manganese waste liquid, especially with containing the method that the manganese waste liquid prepares sulfide and sodium sulphite and vitriolate of tartar mixing prod, the described manganese waste liquid that contains contains the manganese waste liquid for producing the Resorcinol gained.

Background technology

Resorcinol is important organic intermediate, and China is in the development seventies in 20th century and dropped into suitability for industrialized production.Advantages such as at present domestic mainly taking used aniline-Manganse Dioxide explained hereafter Resorcinol, and this technology is compared with external phenol-hydrogen peroxide process, has the product purity height, and impurity is few.But its shortcoming is that the quantity discharged of waste liquid is big.Under the common state, one ton of Resorcinol of every production has 40 tons of Mn-bearing waste waters approximately.The chemical composition that production Resorcinol gained contains manganese waste liquid the inside is the content 11-12% of manganous sulfate, and ammonium sulfate content is 1.4-1.6%, and sulfuric acid content is 1.8-2.2%, simple substance element residue 5-6%, and the simple substance element is: calcium, magnesium, zinc, sodium, aluminium, cadmium and nickel.

At present domestic factories' utilizations contain the manganese waste liquid and produce crystal manganous sulfate or common carbonate, and high-purity manganese carbonate etc.High-purity manganese carbonate is an ideal high performance strong magneticsubstance, is the main raw material of the manganese-silicon that developed rapidly modern age, mangal, high-performance manganese dioxide product.High-purity manganese carbonate mainly is as soft magnet oxygen magneticsubstance at present, is that raw material is produced with electrolytic manganese or manganous sulfate, bicarbonate of ammonia etc. generally.The utilization of domestic existing factory contains the manganese waste liquid and produces the manganous sulfate crystal through a series of purification process, carries out replacement(metathesis)reaction with bicarbonate of ammonia again and produces high-purity manganese carbonate.

Yet, but be not used with other chemical ingredients in the Resorcinol, thereby, resource wasted.

Summary of the invention

The chemical composition that production Resorcinol gained contains the manganese waste liquid is the content 11-12% of manganous sulfate, and ammonium sulfate content is 1.4-1.6%, and sulfuric acid content is 1.8-2.2%, simple substance element residue 5-6%, and the simple substance element is: calcium, magnesium, zinc, sodium, aluminium, cadmium and nickel.For it is fully utilized, the invention provides with containing the method that the manganese waste liquid prepares sulfide and sodium sulphite and vitriolate of tartar mixing prod, the described manganese waste liquid that contains contains the manganese waste liquid for producing the Resorcinol gained, this method is simple to operate, facility investment is few, will produce the Resorcinol gained and contain the comprehensive utilization of manganese waste liquid, turns waste into wealth, eliminated and contained of the pollution of manganese waste liquid, improved economic benefit of enterprises environment.

Technical scheme of the present invention is as follows: with containing the method that the manganese waste liquid prepares sulfide and sodium sulphite and vitriolate of tartar mixing prod, the described manganese waste liquid that contains contains the manganese waste liquid for producing the Resorcinol gained, comprises following concrete steps:

Steps A: will produce the Resorcinol gained and contain the filter cake that obtains clarifying sulfur acid manganese, ammonium sulfate, vitriolic filtrate behind the manganese waste liquid suction filtration and contain the simple substance residue, described filtrate is developed other products separately;

Step B: described filter cake and the excess sulfuric acid reaction that contains the simple substance residue, obtain sulfur acid calcium, sal epsom, zinc sulfate, sodium sulfate, the solution of Tai-Ace S 150, Cadmium Sulphate and single nickel salt, then mix with potassium sulfide solution again, and to make the ratio of molar content sum and the molar content of potassium sulphide of the material of vitriol in the solution be 1: 0.8-1.2 obtains the sulfide of Containing Sulfur calcium, magnesium sulfide, zinc sulphide, sodium sulphite, aluminium sulfide, Cadmium Sulfide and nickelous sulfide and the mixing solutions of vitriolate of tartar;

Step C: with the mixing solutions of step B gained sulfide and vitriolate of tartar after filtration, obtain the sulfide filter cake of sulfurated lime, magnesium sulfide, zinc sulphide, aluminium sulfide, Cadmium Sulfide, nickelous sulfide product and contain the filtrate of mixing sodium sulphite and vitriolate of tartar;

Step D: the sulfide filter cake obtains the sulfide product through washing, drying, fractional separation and pulverizing;

Step e: contain mix sodium sulphite and vitriolate of tartar filtrate through underpressure distillation, crystallisation by cooling, separate out and mix sodium sulfide crystal and potassium sulfate crystal, separate after filtration, obtain sodium sulphite and vitriolate of tartar mixing prod.

Usefulness of the present invention contains the method that the manganese waste liquid prepares sulfide and sodium sulphite and vitriolate of tartar mixing prod, its chemical equation:

CaSO ₄+K ₂S＝＝＝＝＝CaS+K ₂SO ₄

MgSO ₄+K ₂S＝＝＝＝＝MgS+K ₂SO ₄

Na ₂SO ₄+K ₂S＝＝＝＝＝2Na ₂S+K ₂SO ₄

ZnSO ₄+K ₂S＝＝＝＝＝ZnS+K ₂SO ₄

Al ₂(SO ₄) ₃+3K ₂S＝＝＝＝＝Al ₂S ₃+3K ₂SO ₄

CdSO ₄+K ₂S＝＝＝＝＝CdS+K ₂SO ₄

NiSO ₄+K ₂S＝＝＝＝＝NiS+K ₂SO ₄

Beneficial effect of the present invention is: usefulness of the present invention contains the method that the manganese waste liquid prepares sulfide and sodium sulphite and vitriolate of tartar mixing prod, the described manganese waste liquid that contains contains the manganese waste liquid for producing the Resorcinol gained, this method is simple to operate, facility investment is few, to produce the Resorcinol gained and contain the comprehensive utilization of manganese waste liquid, turn waste into wealth, eliminated and contain of the pollution of manganese waste liquid, improved economic benefit of enterprises environment.

Embodiment

Embodiment 1:

With containing the method that the manganese waste liquid prepares sulfide and sodium sulphite and vitriolate of tartar mixing prod, the described manganese waste liquid that contains contains the manganese waste liquid for producing the Resorcinol gained, comprises following concrete steps:

Steps A: 500kg is produced the Resorcinol gained contain the filter cake that obtains clarifying sulfur acid manganese, ammonium sulfate, vitriolic filtrate behind the manganese waste liquid suction filtration and contain the simple substance residue, described filtrate is developed other products separately;

Step B: described filter cake and the excess sulfuric acid reaction that contains the simple substance residue, obtain sulfur acid calcium, sal epsom, zinc sulfate, sodium sulfate, the solution of Tai-Ace S 150, Cadmium Sulphate and single nickel salt, then mix with potassium sulfide solution again, and to make the ratio of molar content sum and the molar content of potassium sulphide of the material of vitriol in the solution be 1: 0.8, obtains the sulfide of Containing Sulfur calcium, magnesium sulfide, zinc sulphide, sodium sulphite, aluminium sulfide, Cadmium Sulfide and nickelous sulfide and the mixing solutions of vitriolate of tartar;

Step C: with the mixing solutions of step B gained sulfide and vitriolate of tartar after filtration, obtain the sulfide filter cake of sulfurated lime, magnesium sulfide, zinc sulphide, aluminium sulfide, Cadmium Sulfide, nickelous sulfide product and contain the filtrate of mixing sodium sulphite and vitriolate of tartar;

Step D: the sulfide filter cake obtains the sulfide product through washing, drying, fractional separation and pulverizing;

Step e: contain mix sodium sulphite and vitriolate of tartar filtrate through underpressure distillation, crystallisation by cooling, separate out and mix sodium sulfide crystal and potassium sulfate crystal, separate after filtration, obtain sodium sulphite and vitriolate of tartar mixing prod.

Embodiment 2:

With containing the method that the manganese waste liquid prepares sulfide and sodium sulphite and vitriolate of tartar mixing prod, the described manganese waste liquid that contains contains the manganese waste liquid for producing the Resorcinol gained, comprises following concrete steps:

Steps A: 500kg is produced the Resorcinol gained contain the filter cake that obtains clarifying sulfur acid manganese, ammonium sulfate, vitriolic filtrate behind the manganese waste liquid suction filtration and contain the simple substance residue, described filtrate is developed other products separately;

Step B: described filter cake and the excess sulfuric acid reaction that contains the simple substance residue, obtain sulfur acid calcium, sal epsom, zinc sulfate, sodium sulfate, the solution of Tai-Ace S 150, Cadmium Sulphate and single nickel salt, then mix with potassium sulfide solution again, and to make the ratio of molar content sum and the molar content of potassium sulphide of the material of vitriol in the solution be 1: 1, obtains the sulfide of Containing Sulfur calcium, magnesium sulfide, zinc sulphide, sodium sulphite, aluminium sulfide, Cadmium Sulfide and nickelous sulfide and the mixing solutions of vitriolate of tartar;

Step C: with the mixing solutions of step B gained sulfide and vitriolate of tartar after filtration, obtain the sulfide filter cake of sulfurated lime, magnesium sulfide, zinc sulphide, aluminium sulfide, Cadmium Sulfide, nickelous sulfide product and contain the filtrate of mixing sodium sulphite and vitriolate of tartar;

Step D: the sulfide filter cake obtains the sulfide product through washing, drying, fractional separation and pulverizing;

Step e: contain mix sodium sulphite and vitriolate of tartar filtrate through underpressure distillation, crystallisation by cooling, separate out and mix sodium sulfide crystal and potassium sulfate crystal, separate after filtration, obtain sodium sulphite and vitriolate of tartar mixing prod.

Embodiment 3:

With containing the method that the manganese waste liquid prepares sulfide and sodium sulphite and vitriolate of tartar mixing prod, the described manganese waste liquid that contains contains the manganese waste liquid for producing the Resorcinol gained, comprises following concrete steps:

Steps A: 500kg is produced the Resorcinol gained contain the filter cake that obtains clarifying sulfur acid manganese, ammonium sulfate, vitriolic filtrate behind the manganese waste liquid suction filtration and contain the simple substance residue, described filtrate is developed other products separately;

Step B: described filter cake and the excess sulfuric acid reaction that contains the simple substance residue, obtain sulfur acid calcium, sal epsom, zinc sulfate, sodium sulfate, the solution of Tai-Ace S 150, Cadmium Sulphate and single nickel salt, then mix with potassium sulfide solution again, and to make the ratio of molar content sum and the molar content of potassium sulphide of the material of vitriol in the solution be 1: 1.2, obtains the sulfide of Containing Sulfur calcium, magnesium sulfide, zinc sulphide, sodium sulphite, aluminium sulfide, Cadmium Sulfide and nickelous sulfide and the mixing solutions of vitriolate of tartar;

Step C: with the mixing solutions of step B gained sulfide and vitriolate of tartar after filtration, obtain the sulfide filter cake of sulfurated lime, magnesium sulfide, zinc sulphide, aluminium sulfide, Cadmium Sulfide, nickelous sulfide product and contain the filtrate of mixing sodium sulphite and vitriolate of tartar;

Step D: the sulfide filter cake obtains the sulfide product through washing, drying, fractional separation and pulverizing;

Step e: contain mix sodium sulphite and vitriolate of tartar filtrate through underpressure distillation, crystallisation by cooling, separate out and mix sodium sulfide crystal and potassium sulfate crystal, separate after filtration, obtain sodium sulphite and vitriolate of tartar mixing prod.

Above content be in conjunction with concrete preferred implementation to further describing that the present invention did, can not assert that concrete enforcement of the present invention is confined to these explanations.For the general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, its framework form can be flexible and changeable, can the subseries product.Just make some simple deduction or replace, all should be considered as belonging to the scope of patent protection that the present invention is determined by claims of being submitted to.

Claims (1)

1. with containing the method that the manganese waste liquid prepares sulfide and sodium sulphite and vitriolate of tartar mixing prod, it is characterized in that the described manganese waste liquid that contains contains the manganese waste liquid for producing the Resorcinol gained, comprises following concrete steps:

Steps A: will produce the Resorcinol gained and contain the filter cake that obtains clarifying sulfur acid manganese, ammonium sulfate, vitriolic filtrate behind the manganese waste liquid suction filtration and contain the simple substance residue, described filtrate is developed other products separately;

Step B: described filter cake and the excess sulfuric acid reaction that contains the simple substance residue, obtain sulfur acid calcium, sal epsom, zinc sulfate, sodium sulfate, the solution of Tai-Ace S 150, Cadmium Sulphate and single nickel salt, then mix with potassium sulfide solution again, and to make the ratio of molar content sum and the molar content of potassium sulphide of the material of vitriol in the solution be 1: 0.8-1.2 obtains the sulfide of Containing Sulfur calcium, magnesium sulfide, zinc sulphide, sodium sulphite, aluminium sulfide, Cadmium Sulfide and nickelous sulfide and the mixing solutions of vitriolate of tartar;

Step C: with the mixing solutions of step B gained sulfide and vitriolate of tartar after filtration, obtain the sulfide filter cake of sulfurated lime, magnesium sulfide, zinc sulphide, aluminium sulfide, Cadmium Sulfide, nickelous sulfide product and contain the filtrate of mixing sodium sulphite and vitriolate of tartar;

Step D: the sulfide filter cake obtains the sulfide product through washing, drying, fractional separation and pulverizing;

Step e: contain mix sodium sulphite and vitriolate of tartar filtrate through underpressure distillation, crystallisation by cooling, separate out and mix sodium sulfide crystal and potassium sulfate crystal, separate after filtration, obtain sodium sulphite and vitriolate of tartar mixing prod.