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

Compound decoloring and deodorizing coagulant and preparation process thereof

A manufacturing process and technology for coagulants, which are applied in the field of composite decolorizing and odorous coagulants and their manufacturing processes, can solve problems such as ineffectiveness, and achieve the effects of low price, high degradation rate and wide application range of pH value.

Active Publication Date: 2012-05-23
山东省昱鸥水务有限公司
View PDF1 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although it has a certain decolorization effect, it still has no effect on some dye products in various industries

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
  • Compound decoloring and deodorizing coagulant and preparation process thereof
  • Compound decoloring and deodorizing coagulant and preparation process thereof
  • Compound decoloring and deodorizing coagulant and preparation process thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0084] Embodiment 1 (best embodiment)

[0085] Composite decolorizing taste coagulant, comprises the raw material of following percentage by weight and makes magnesium sulfate:

[0086] 40% magnesium oxide with a content of 85%;

[0087] 30% concentration of sulfuric acid 60%;

[0088] Then the above-mentioned magnesium sulfate prepared is formulated into the product of the present invention with active calcium hydroxide in the following weight percentages:

[0089] Magnesium sulfate 40%;

[0090] Content is 98% active calcium hydroxide 60%.

[0091] The product obtained in this embodiment has a good effect for urban sewage treatment.

Embodiment 2

[0092] Embodiment 2 (with reference to the preparation mode of embodiment 1, hereinafter the same)

[0093] Magnesium oxide 35% with a content of 85%;

[0094] 30% concentration of sulfuric acid 65%;

[0095] Magnesium sulfate 35%;

[0096] Content is 98% active calcium hydroxide 65%.

Embodiment 3

[0098] 30% magnesium oxide with a content of 85%;

[0099] 30% concentration of sulfuric acid 70%;

[0100] Magnesium sulfate 30%;

[0101] Content is 98% active calcium hydroxide 70%.

[0102] The manufacturing process of the above-mentioned composite decolorizing coagulant, according to the weight percentage of the raw materials, the concentration of the waste sulfuric acid produced by the sulfuric acid method to produce titanium dioxide by-products is adjusted to 25-30% and put into the reaction pool, and the magnesium oxide with a content of 85% is used according to the proportioning ratio. Add to the reaction tank; the reaction releases heat, and the reaction time is 1 to 3 hours, preferably 2 hours; after filtration, the liquid is lifted to the concentration tank with an acid-resistant pump, heated to 250°C to 300°C, preferably 280°C, and concentrated for 1 to 3 hours. Preferably 2 hours; when referring to the crystallization pool, the crystallization time at room temp...

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

No PUM Login to View More

Abstract

The invention relates to a compound decoloring and deodorizing coagulant and a preparation process thereof, which are used for the field of water and sewage treatment. Magnesium sulfate is prepared from the following raw materials according to weight percentage: 30-45 percent of 85-percent magnesia and 55-70 percent of sulphuric acid with a concentration of 25-35 percent; and the compound decoloring and deodorizing coagulant is obtained by mixing 30-45 percent of the obtained magnesium sulfate and 55-70 percent of active calvital. The preparation process of the compound decoloring and deodorizing coagulant is as blow: the concentration of waste sulphuric acid which is generated by adopting the sulfuric acid process to produce titanium pigment byproduct is adjusted to 25-30 percent and thenput into a reaction pond, and then the magnesia is added into the reaction pond according to the mixing ratio; heat is send out through the reaction, and the reaction time is 2 h; after filtration, the liquid is extracted by an acid-resisting pump to a condensing jar, the liquid is heated to 280 DEG C and then undergoes condensation which lasts 2 h; then the liquid is condensed to a crystallizingpond, the crystallization time is 4 h, and the magnesium sulfate is obtained after dehydration and drying; and the compound decoloring and deodorizing coagulant is obtained by mixing dried magnesiumsulfate with the active calvital according to the mixing ratio. The method has the advantages of high-efficiency coagulation, wide pH application range, high degradation rate, full decoloring and deodorization, low price, etc.

Description

technical field [0001] The invention relates to a coagulation and flocculant used in the field of water and sewage treatment and its manufacturing process, in particular to a composite decolorizing and smelly coagulant and its manufacturing process. Background technique [0002] In energy saving and emission reduction, urban leather, printing and dyeing, papermaking, electroplating, coal coke chemical, petrochemical, food and pharmaceutical industries must carry out water treatment in order to adapt to environmental governance and discharge standards. [0003] At present, environmental pollution mainly includes air pollution and water pollution. Most polluting enterprises have realized the seriousness of pollution. The country is stepping up efforts to control the discharge of a large amount of organic and heavy metal harmful substances from leather, printing and dyeing, papermaking, electroplating, coal coking, petrochemical, food and pharmaceutical industries. [0004] T...

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 Patents(China)
IPC IPC(8): C02F1/52
Inventor 张新长张小娟
Owner 山东省昱鸥水务有限公司