CN109054458A - A kind of carbon black materials and its purification process - Google Patents
A kind of carbon black materials and its purification process Download PDFInfo
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- CN109054458A CN109054458A CN201811120387.9A CN201811120387A CN109054458A CN 109054458 A CN109054458 A CN 109054458A CN 201811120387 A CN201811120387 A CN 201811120387A CN 109054458 A CN109054458 A CN 109054458A
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
- C09C1/44—Carbon
- C09C1/48—Carbon black
- C09C1/487—Separation; Recovery
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Abstract
The embodiment of the invention discloses a kind of purification process of carbon black materials, comprising: the first filter cake is obtained by filtration after carrying out pickling to carbon black crude product；The second filter cake is obtained by filtration after washing using EDTA-2Na solution to the first filter cake；Third filter cake is obtained by filtration after washing using water soluble Beta-cyclodextrin solution to the second filter cake to get lead, cadmium, arsenic, mercury content difference≤0.1ppm and heavy metal total content≤1ppm carbon black materials are arrived.A kind of carbon black materials, lead, cadmium, arsenic, mercury content difference≤0.1ppm, and heavy metal total content≤1ppm are additionally provided, meets the medicinal standard no more than 20ppm, can apply in field of medicaments.
Description
Technical field
The present invention relates to the purifying of medicinal materials more particularly to a kind of carbon black materials and its purification process.
Background technique
Carbon black is a kind of amorphous carbon.Gently, pine and superfine black powder, surface area are very big, range is from 10-
3000m2/ g, be carbonaceous material (coal, natural gas, heavy oil, fuel oil etc.) under conditions of lack of air through imperfect combustion or
Product obtained by being thermally decomposed is mainly used in the industries such as rubber, paint, coating, plastics, medicine and printing.
The industrial production of carbon black be by fuel oil and feedstock oil mixing through imperfect combustion, cooling, collection, granulation, drying,
The processes such as screening are prepared.In entire production process, the introducing of impurity comes from material and equipment, and impurity includes moisture content, machinery
Property impurity, sulfur-bearing object, salt and heavy metal etc., wherein beavy metal impurity mostlys come from feedstock oil.It is miscellaneous in order to remove heavy metal
Matter, the solution that the prior art uses have: the pre-treatment for first passing through dehydration and filtering removes a part of beavy metal impurity, then passes through
It crosses magnetic screening removal and has magnetic beavy metal impurity.Carbon black magnetism screening plant can effectively reduce the ferro element in carbon black
Equal magnetic metal impurities, raw material oil filtration system can effectively reduce solid metallic impurity in feedstock oil, to reach reduction
The purpose of carbon black finished product beavy metal impurity.But have a limitation with upper type, such as to heavy metallic salt deliquescent in feedstock oil,
Do not have magnetic heavy metal and micro heavy, impurity-eliminating effect is poor.Carbon black can apply field of medicaments, as it can be by harmful substance
It absorbs, and excretes；It is adjustable caused by diarrhoea and is not suitable with symptom；Inhibit the stink in excrement；Enteral weak acid is provided
The hyperplasia of property bacterium, and harmful bacteria is allowed to reduce；Anion is provided, the active ferment of one of sick reason can be inhibited to generate.But it is right
Content of beary metal in carbon black is more demanding, it is desirable that total content must not be higher than 20ppm, furthermore medicinal supplementary material to lead, cadmium, arsenic,
Mercury content also has higher bound requirements according to dosage form difference.Therefore content of beary metal in finished product carbon black made of the prior art
It is higher, it is greater than 20ppm, does not meet the medicinal standard no more than 20ppm.Content of beary metal in carbon black limits carbon black and is curing
The application in medicine field.
Summary of the invention
The object of the present invention is to provide a kind of purification process of carbon black materials and carbon black materials, at least to solve above-mentioned ask
Topic.
To solve the above problems, an aspect of of the present present invention provides a kind of purification process of carbon black materials, comprising: to carbon black
The first filter cake is obtained by filtration after carrying out pickling in crude product；Is obtained by filtration after washing using EDTA-2Na solution to the first filter cake
Two filter cakes；Be obtained by filtration after being washed using water soluble Beta-cyclodextrin solution to the second filter cake third filter cake to get to lead, cadmium,
Arsenic, mercury content difference≤0.1ppm and heavy metal total content≤1ppm carbon black materials.
It optionally, is the acid solution of 20-40% concentration, the preferably nitric acid of 30% concentration for the acid solution of pickling.
Optionally, EDTA-2Na solution is the EDTA-2Na aqueous solution that mass percentage concentration is 0.2-2%.
Optionally, the usage amount of EDTA-2Na be carbon black weight 1-10%, preferably 2%.
Optionally, water soluble Beta-cyclodextrin solution is the water soluble Beta-cyclodextrin aqueous solution that mass percentage concentration is 0.05-5%.
Optionally, the usage amount of water soluble Beta-cyclodextrin be carbon black weight 0.05-5%, preferably 0.5%.
Optionally, water soluble Beta-cyclodextrin is modified water soluble Beta-cyclodextrin, preferably carboxymethyl cyclodextrin or hydroxypropyl
Cyclodextrin.
Optionally, the step of obtaining the first filter cake includes: that acid solution is added in carbon black crude product；It is stirred at a temperature of 40-60 DEG C
It mixes 24 hours or more；With 0.22 μm of aqueous membrane filtration.
Optionally, with after the step of 0.22 μm of aqueous membrane filtration further include: after deionized water is added, in 20-30
DEG C stirring 1.5-2.5 hours；With 0.22 μm of aqueous membrane filtration；It is washed with deionized to pH value 6-7, obtains the first filter
Cake；
Optionally, the step of obtaining the second filter cake includes: the addition EDTA-2Na aqueous solution in the first filter cake；In 20-30
DEG C stirring 24 hours or more；With 0.22 μm of aqueous membrane filtration.
Optionally, with after the step of 0.22 μm of aqueous membrane filtration further include: after deionized water is added, in 20-30
DEG C stirring 1.5-2.5 hours；With 0.22 μm of aqueous membrane filtration；It is washed with deionized, obtains the second filter cake.
Optionally, the step of obtaining third filter cake includes: the addition water soluble Beta-cyclodextrin aqueous solution in the second filter cake；?
It is stirred 24 hours or more at a temperature of 20-30 DEG C；With 0.22 μm of aqueous membrane filtration.
Optionally, with after the step of 0.22 μm of aqueous membrane filtration further include: be added after deionized water at 20-30 DEG C
Stirring 1.5-2.5 hours；With 0.22 μm of aqueous membrane filtration；Deionized water is added again, in 20-30 DEG C of stirring 1.5-2.5
Hour；With 0.22 μm of aqueous membrane filtration；It is washed with deionized, obtains third filter cake.
Optionally, the purification process of the carbon black materials, further includes: 22-26 is dried in vacuo at 60-70 DEG C to carbon black materials
Hour, obtain carbon black finished product.
According to another aspect of the present invention, a kind of carbon black materials are provided, lead, cadmium, arsenic, the mercury in the carbon black materials contain
Measure difference≤0.1ppm, and heavy metal total content≤1ppm.
Optionally, which can be used as a kind of medical material, it is preferred that the carbon black materials can be used to prepare for showing
The nanogate carbon suspension of the region draining lymph node of track malignant tumour.
In embodiments of the present invention, it is washed, is solved by pickling, the washing of EDTA-2Na solution and water soluble Beta-cyclodextrin solution
Content of beary metal is higher than the problem of 20ppm in medical material, so reached heavy metal in carbon black finished product and lead, cadmium,
Arsenic, mercury content meet the purpose of medical standards.
Above-mentioned technical proposal of the invention has following beneficial technical effect:
1) lead, cadmium, arsenic, mercury content residual content are below 0.1ppm in resulting carbon black materials, and heavy metal is remaining
Total content≤1ppm meets the medicinal standard no more than 20ppm；
2) carbon black materials made from can be used as a kind of medical material and apply in field of medicaments；
3) during purification process, the reagent used is nontoxic substance, does not introduce the toxic object of new pollution
Matter enters in carbon black products, ensure that the safe and reliable of carbon black finished product；
4) purification process is simple, at low cost.
Detailed description of the invention
Fig. 1 is a kind of purification process flow chart of carbon black materials of implementation 1 according to the present invention.
Specific embodiment
In order to make the objectives, technical solutions and advantages of the present invention clearer, With reference to embodiment and join
According to attached drawing, the present invention is described in more detail.It should be understood that these descriptions are merely illustrative, and it is not intended to limit this hair
Bright range.In addition, in the following description, descriptions of well-known structures and technologies are omitted, to avoid this is unnecessarily obscured
The concept of invention.
Embodiment 1
In order to solve the above technical problems, the embodiment of the invention provides a kind of purification process of carbon black materials.
Fig. 1 is the purification process flow chart according to a kind of carbon black materials of present invention implementation 1.As shown in Figure 1, the purifying side
Method process includes:
Step S101: the first filter cake is obtained by filtration after carrying out pickling to carbon black crude product；
Step S102: the second filter cake is obtained by filtration after washing using EDTA-2Na solution to first filter cake；
Step S103: third filter is obtained by filtration after washing using water soluble Beta-cyclodextrin solution to second filter cake
Cake to get arrive lead, cadmium, arsenic, mercury content difference≤0.1ppm and heavy metal total content≤1ppm carbon black materials.
It optionally, is the acid solution of 20-40% concentration, the preferably nitric acid of 30% concentration for the acid solution of pickling.
Optionally, EDTA-2Na solution is the EDTA-2Na aqueous solution that mass percentage concentration is 0.2-2%.
Optionally, the usage amount of EDTA-2Na be carbon black weight 1-10%, preferably 2%.
Optionally, water soluble Beta-cyclodextrin solution is the water soluble Beta-cyclodextrin aqueous solution that mass percentage concentration is 0.05-5%.
Optionally, the usage amount of water soluble Beta-cyclodextrin be carbon black weight 0.05-5%, preferably 0.1%.
Optionally, water soluble Beta-cyclodextrin is modified water soluble Beta-cyclodextrin, such as carboxymethyl cyclodextrin or hydroxypropyl cyclodextrin.
Optionally, above-mentioned steps S101 includes:
Step S1011: acid solution is added in carbon black crude product；
Wherein, lead, cadmium, arsenic, mercury content are respectively 1.5-2.5ppm, 3-4ppm, 1.4-2.0ppm, 1.2- in carbon black crude product
2ppm, and heavy metal total content reaches 40-100ppm；
Step S1012: it is stirred 24 hours or more at a temperature of 40-60 DEG C；
Step S1013: with 0.22 μm of aqueous membrane filtration；
Step S1014: be added deionized water after, 20-30 DEG C stirring 1.5-2.5 hours；
Step S1015: with 0.22 μm of aqueous membrane filtration；
Step S1016: being washed with deionized to pH value 6-7, obtains the first filter cake；
Optionally, above-mentioned steps S102 includes:
Step S1021: EDTA-2Na aqueous solution is added in the first filter cake；
Step S1022: stirred 24 hours at 20-30 DEG C or more；
Step S1023: with 0.22 μm of aqueous membrane filtration；
Step S1024: be added deionized water after, 20-30 DEG C stirring 1.5-2.5 hours；
Step S1025: with 0.22 μm of aqueous membrane filtration；
Step S1026: being washed with deionized, and obtains the second filter cake.
Optionally, above-mentioned steps S103 includes:
Step S1031: water soluble Beta-cyclodextrin aqueous solution is added in the second filter cake；
Step S1032: it is stirred 24 hours or more at a temperature of 20-30 DEG C；
Step S1033: with 0.22 μm of aqueous membrane filtration；
Step S1034: be added deionized water after 20-30 DEG C stirring 1.5-2.5 hours；
Step S1035: with 0.22 μm of aqueous membrane filtration；
Step S1036: being added deionized water again, 20-30 DEG C stirring 1.5-2.5 hours；
Step S1037: with 0.22 μm of aqueous membrane filtration；
Step S1038: being washed with deionized, and obtains third filter cake.
Optionally, the purification process of the carbon black materials further includes step S104:
Carbon black materials are dried in vacuo 22-26 hours at 60-70 DEG C, obtain carbon black finished product.
By above step, carbon black finished product is obtained, chemical analysis is carried out to gained carbon black finished product and ICP-MS is detected.Detection
The result shows that lead, cadmium, arsenic, the mercury content in carbon black finished product are respectively lower than 0.1ppm, and heavy metal total content is lower than 1ppm.
Embodiment 2
The embodiment of the invention provides a kind of carbon black materials, and optionally, the carbon black materials are using in the embodiment of the present invention 1
Purification process obtained by.
Lead, cadmium, arsenic, mercury content difference≤0.1ppm in the carbon black materials, and heavy metal total content≤1ppm.It can see
Out, the lead in the carbon black materials, cadmium, arsenic, mercury content and heavy metal total content meet the medicinal standard no more than 20ppm, so
Carbon black materials in the embodiment of the present invention can be used as a kind of medical material completely and apply in field of medicaments.
Preferably, the nano-sized carbon which can be used to prepare the region draining lymph node for tracer malignant tumour is mixed
Suspension.
Embodiment 3
A kind of purification process of carbon black materials is present embodiments provided, which includes:
It takes 100g carbon black crude product 1 to be added in round-bottomed flask, 30% nitric acid 20ml is added, stirring while is heated to 50
DEG C, it is stirred 24 hours in this temperature, a black solid is obtained with 0.22 μm of aqueous membrane filtration while hot, in the black solid
500ml ionized water is added, after being stirred 2 hours at a temperature of 20-30 DEG C, with 0.22 μm of aqueous membrane filtration, spend later from
Sub- water washing washed to pH value 6-7 after black solid；Black solid after washing is added in round-bottomed flask, is added
The EDTA-2Na aqueous solution 500ml that mass percentage concentration is 0.4%, is stirred 24 hours at a temperature of 20-30 DEG C, with 0.22 μm
Aqueous membrane filtration obtains filter cake, removes 500ml ionized water in filter cake addition, stirs 2 hours, use at a temperature of 20-30 DEG C
0.22 μm of aqueous membrane filtration, and the filter cake after being washed with 500ml deionized water；The filter cake is added to round bottom
In flask, the carboxymethyl cyclodextrin aqueous solution 500ml that mass percentage concentration is 0.1% is added, stirs 24 at a temperature of 20-30 DEG C
Hour, then use 0.22 μm of aqueous membrane filtration, deionized water is added in resulting filter cake, 20-30 DEG C stirring 2 hours,
With 0.22 μm of aqueous membrane filtration, deionized water is added in gained filter cake, is stirred 2 hours at 20-30 DEG C, then with 0.22 μm
Aqueous filter membrane be filtered, washed to obtain a solid with 1000ml deionized water；The solid is carried out at 60-70 DEG C
Vacuum decompression is 24 hours dry, obtains 61g carbon black finished product 1.
Embodiment 4
It takes 100g carbon black crude product 2 to be added in round-bottomed flask, 30% nitric acid 20ml is added, stirring while is heated to 50
DEG C, it is stirred 24 hours in this temperature, a black solid is obtained with 0.22 μm of aqueous membrane filtration while hot, in the black solid
500ml ionized water is added, stirs 2 hours at 20-30 DEG C, then with 0.22 μm of aqueous membrane filtration, gained filter cake is spent
Ion water washing washed to pH value 6-7 after black solid, the black solid after the washing is added in round-bottomed flask,
The EDTA-2Na aqueous solution 500ml that mass percentage concentration is 0.2% is added, is stirred 24 hours at a temperature of 20-30 DEG C, with 0.22
μm aqueous membrane filtration, in gained filter cake be added 500ml ionized water, stirred 2 hours at a temperature of 20-30 DEG C, with 0.22 μ
The aqueous membrane filtration of m washs gained filter cake with 500ml deionized water；The filter cake is added in round-bottomed flask again, quality hundred
Dividing concentration is 0.08% carboxymethyl cyclodextrin aqueous solution 500ml, is stirred 24 hours at a temperature of 20-30 DEG C, later with 0.22 μ
The aqueous membrane filtration of m, is added deionized water in gained filter cake, stirs 2 hours at a temperature of 20-30 DEG C, with 0.22 μm
Deionized water is added in gained filter cake in aqueous membrane filtration, stirs 2 hours at a temperature of 20-30 DEG C, then with 0.22 μm
Aqueous membrane filtration, and washed to obtain a solid with 1000ml deionized water；The solid is subjected to vacuum decompression at 60-70 DEG C
It is 24 hours dry, obtain 60.5g carbon black finished product 2.
Embodiment 5
It takes 100g carbon black crude product 3 to be added in round-bottomed flask, 30% nitric acid 20ml is added, stirring while is heated to 50
DEG C, it is stirred 24 hours in this temperature, a black solid is obtained with 0.22 μm of aqueous membrane filtration while hot, in the black solid
500ml ionized water is added, stirs 2 hours at a temperature of 20-30 DEG C, then with 0.22 μm of aqueous membrane filtration, and spend from
Filter cake obtained by sub- water washing washed to pH value 6-7 after black solid, the black solid after the washing is added to round bottom
In flask, the EDTA-2Na aqueous solution 500ml that mass percentage concentration is 0.6% is added, it is small that 24 are stirred at a temperature of 20-30 DEG C
When, later with 0.22 μm of aqueous membrane filtration, it is added in gained filter cake and removes 500ml ionized water, stirred at a temperature of 20-30 DEG C
It mixes 2 hours, later with 0.22 μm of aqueous membrane filtration, and washs gained filter cake with 500ml deionized water, then add filter cake
Enter into round-bottomed flask, the carboxymethyl cyclodextrin aqueous solution 500ml that mass percentage concentration is 0.3% is added, in 20-30 DEG C of temperature
Lower stirring 24 hours, obtains filter cake with 0.22 μm of aqueous membrane filtration, deionized water is added in the filter cake, at 20-30 DEG C
At a temperature of stir 2 hours, with 0.22 μm of aqueous membrane filtration, deionized water is added in gained filter cake, in 20-30 DEG C of temperature
Lower stirring 2 hours is washed gained filter cake with 1000ml deionized water and is obtained a solid with 0.22 μm of aqueous membrane filtration, will
The solid carries out vacuum decompression drying 24 hours at 60-70 DEG C, obtains 62g carbon black finished product 3.
By in above-described embodiment 3 to 5 before purification after carbon black materials carry out chemical analysis and ICP-MS detection, detection knot
Fruit is shown in Table 1, table 1 be before purification after carbon black materials in content of beary metal comparison.
Table 1 before purification after carbon black materials in content of beary metal comparison
As can be seen from Table 1, implement 3 in, before purification the heavy metal total content in carbon black crude product 1 be 40-60ppm, lead,
Cadmium, arsenic, mercury content are respectively 1.5ppm, 3ppm, 1.4ppm and 1.2ppm, the weight in resulting carbon black finished product 1 after purification
Total metal content is≤1ppm, and lead, cadmium, arsenic, mercury content are respectively 0.05ppm, 0.04ppm, 0.04ppm and 0.02ppm.
Implementing in 4, before purification the heavy metal total content in carbon black crude product 2 and lead, cadmium, arsenic, mercury content with embodiment 2
In the crude product of carbon black before purification 1 it is identical, the heavy metal total content in resulting carbon black finished product 2 after purification is≤1ppm, lead,
Cadmium, arsenic, mercury content are respectively 0.08ppm, 0.07ppm, 0.04ppm and 0.04ppm.
Implementing in 5, the heavy metal total content in carbon black crude product 3 is 80-100ppm, lead, cadmium, arsenic, mercury content before purification
Respectively 2.5ppm, 3.4ppm, 1.8ppm and 1.6ppm, each content are above in embodiment 3 and embodiment 4 carbon black before purification
Each content of crude product 3, the heavy metal total content in resulting carbon black finished product 3 after purification are≤1ppm, lead, cadmium, arsenic, mercury content
Respectively 0.07ppm, 0.05ppm, 0.05ppm and 0.04ppm.
In each embodiment provided by the invention, corresponding lead, cadmium, arsenic, mercury removal rate are minimum also can be up to 94% or more, weight
The total removal rate of metal is up to 99% or more.Show that the embodiment of the present invention can thoroughly remove removing heavy metals very much, so that after purification
Resulting carbon black finished product in heavy metal and lead, cadmium, arsenic, mercury content meet medical standards, moreover, in purification process process
In, the reagent used is inorganic acid such as nitric acid, EDTA-2Na and water soluble Beta-cyclodextrin, these substances be all it is nontoxic, do not have
There is the toxic substance that pollutes being introduced into newly to enter in carbon black products, ensure that the safe and reliable of carbon black finished product.
After the present invention provides the method purification process of embodiment, resulting carbon black finished product lead, cadmium, arsenic, mercury content are remaining
Content is below 0.1ppm, and heavy metal remnants total content≤1ppm, meets the medicinal standard no more than 20ppm.It is obtained
Carbon black products can be applied in field of medicaments completely, preferably, the carbon black materials can be used to prepare for tracer malignant tumour
Region draining lymph node nanogate carbon suspension.
It should be understood that above-mentioned specific embodiment of the invention is used only for exemplary illustration or explains of the invention
Principle, but not to limit the present invention.Therefore, that is done without departing from the spirit and scope of the present invention is any
Modification, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.In addition, appended claims purport of the present invention
Covering the whole variations fallen into attached claim scope and boundary or this range and the equivalent form on boundary and is repairing
Change example.
Claims (10)
1. a kind of purification process of carbon black materials characterized by comprising be obtained by filtration first after carrying out pickling to carbon black crude product
Filter cake；
The second filter cake is obtained by filtration after washing using EDTA-2Na solution to first filter cake；
Be obtained by filtration after being washed using water soluble Beta-cyclodextrin solution to second filter cake third filter cake to get to lead, cadmium,
Arsenic, mercury content difference≤0.1ppm and heavy metal total content≤1ppm carbon black materials.
2. purification process according to claim 1, which is characterized in that the acid solution for the pickling is 20-40% concentration
Acid solution, the preferably nitric acid of 30% concentration.
3. purification process according to claim 1, it is 0.2-2%'s that the EDTA-2Na solution, which is mass percentage concentration,
EDTA-2Na aqueous solution.
4. purification process according to claim 1 or 3, the usage amount of the EDTA-2Na is the 1-10% of carbon black weight,
Preferably 2%.
5. purification process according to claim 1, it is 0.05- that the water soluble Beta-cyclodextrin solution, which is mass percentage concentration,
5% water soluble Beta-cyclodextrin aqueous solution.
6. purification process according to claim 1 or 5, the usage amount of the water soluble Beta-cyclodextrin is carbon black weight
0.05-5%, preferably 0.5%.
7. purification process according to claim 1 or 5, the water soluble Beta-cyclodextrin is modified water soluble Beta-cyclodextrin, excellent
Choosing is carboxymethyl cyclodextrin or hydroxypropyl cyclodextrin.
8. purification process according to claim 1-7, described the step of obtaining the first filter cake, include:
Acid solution is added in carbon black crude product；
It is stirred 24 hours or more at a temperature of 40-60 DEG C；
With 0.22 μm of aqueous membrane filtration.
9. purification process according to claim 8, the step of the aqueous membrane filtration with 0.22 μm after further include:
Be added deionized water after, 20-30 DEG C stirring 1.5-2.5 hours；
With 0.22 μm of aqueous membrane filtration；
It is washed with deionized to pH value 6-7, obtains first filter cake.
10. -9 described in any item purification process according to claim 1, described the step of obtaining the second filter cake, include:
EDTA-2Na aqueous solution is added in first filter cake；
Stirred 24 hours at 20-30 DEG C or more；
With 0.22 μm of aqueous membrane filtration.
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202849182U (en) * | 2012-09-19 | 2013-04-03 | 北京格瑞奥环境科技有限公司 | Integrated device for treating heavy metal wastewater and recovering heavy metals |
| CN103979520A (en) * | 2014-04-16 | 2014-08-13 | 乌鲁木齐天合炭源化工有限公司 | Charcoal material purification method |
| CN104741077A (en) * | 2013-12-31 | 2015-07-01 | 西北大学 | Preparation method of carbon adsorption material |
| CN106694530A (en) * | 2016-12-06 | 2017-05-24 | 广州富生源环保工程有限公司 | Multi-stage heavy metal-contaminated soil restoration method |
| US20170306443A1 (en) * | 2016-04-24 | 2017-10-26 | Yadian Xie | Novel Method for Extracting Ultra High Purity Alumina from Wastewater |
| CN107929111A (en) * | 2017-12-18 | 2018-04-20 | 广州市汇吉科技企业孵化器有限公司 | A kind of cleaning mud film for adsorbing heavy metal |
-
2018
- 2018-09-25 CN CN201811120387.9A patent/CN109054458A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202849182U (en) * | 2012-09-19 | 2013-04-03 | 北京格瑞奥环境科技有限公司 | Integrated device for treating heavy metal wastewater and recovering heavy metals |
| CN104741077A (en) * | 2013-12-31 | 2015-07-01 | 西北大学 | Preparation method of carbon adsorption material |
| CN103979520A (en) * | 2014-04-16 | 2014-08-13 | 乌鲁木齐天合炭源化工有限公司 | Charcoal material purification method |
| US20170306443A1 (en) * | 2016-04-24 | 2017-10-26 | Yadian Xie | Novel Method for Extracting Ultra High Purity Alumina from Wastewater |
| CN106694530A (en) * | 2016-12-06 | 2017-05-24 | 广州富生源环保工程有限公司 | Multi-stage heavy metal-contaminated soil restoration method |
| CN107929111A (en) * | 2017-12-18 | 2018-04-20 | 广州市汇吉科技企业孵化器有限公司 | A kind of cleaning mud film for adsorbing heavy metal |
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Application publication date: 20181221 |