KR20080061795A - Activated carbon production method and activated carbon - Google Patents
Activated carbon production method and activated carbon Download PDFInfo
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- KR20080061795A KR20080061795A KR1020060136907A KR20060136907A KR20080061795A KR 20080061795 A KR20080061795 A KR 20080061795A KR 1020060136907 A KR1020060136907 A KR 1020060136907A KR 20060136907 A KR20060136907 A KR 20060136907A KR 20080061795 A KR20080061795 A KR 20080061795A
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- activated carbon
- alginate
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 140
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 22
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 26
- 239000000203 mixture Substances 0.000 claims abstract description 23
- 235000010443 alginic acid Nutrition 0.000 claims abstract description 19
- 229920000615 alginic acid Polymers 0.000 claims abstract description 19
- 238000001179 sorption measurement Methods 0.000 claims abstract description 18
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 claims abstract description 17
- 239000007864 aqueous solution Substances 0.000 claims abstract description 17
- FHVDTGUDJYJELY-UHFFFAOYSA-N 6-{[2-carboxy-4,5-dihydroxy-6-(phosphanyloxy)oxan-3-yl]oxy}-4,5-dihydroxy-3-phosphanyloxane-2-carboxylic acid Chemical compound O1C(C(O)=O)C(P)C(O)C(O)C1OC1C(C(O)=O)OC(OP)C(O)C1O FHVDTGUDJYJELY-UHFFFAOYSA-N 0.000 claims abstract description 15
- 229940072056 alginate Drugs 0.000 claims abstract description 15
- 239000004372 Polyvinyl alcohol Substances 0.000 claims abstract description 12
- 239000001110 calcium chloride Substances 0.000 claims abstract description 12
- 229910001628 calcium chloride Inorganic materials 0.000 claims abstract description 12
- 229920002451 polyvinyl alcohol Polymers 0.000 claims abstract description 12
- 238000005507 spraying Methods 0.000 claims abstract description 8
- 238000001035 drying Methods 0.000 claims description 9
- IXPNQXFRVYWDDI-UHFFFAOYSA-N 1-methyl-2,4-dioxo-1,3-diazinane-5-carboximidamide Chemical compound CN1CC(C(N)=N)C(=O)NC1=O IXPNQXFRVYWDDI-UHFFFAOYSA-N 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 8
- 235000010413 sodium alginate Nutrition 0.000 claims description 8
- 239000000661 sodium alginate Substances 0.000 claims description 8
- 229940005550 sodium alginate Drugs 0.000 claims description 8
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 claims description 7
- 229910052740 iodine Inorganic materials 0.000 claims description 7
- 239000011630 iodine Substances 0.000 claims description 7
- 235000010407 ammonium alginate Nutrition 0.000 claims description 3
- 239000000728 ammonium alginate Substances 0.000 claims description 3
- KPGABFJTMYCRHJ-YZOKENDUSA-N ammonium alginate Chemical compound [NH4+].[NH4+].O1[C@@H](C([O-])=O)[C@@H](OC)[C@H](O)[C@H](O)[C@@H]1O[C@@H]1[C@@H](C([O-])=O)O[C@@H](O)[C@@H](O)[C@H]1O KPGABFJTMYCRHJ-YZOKENDUSA-N 0.000 claims description 3
- 235000010408 potassium alginate Nutrition 0.000 claims description 3
- 239000000737 potassium alginate Substances 0.000 claims description 3
- MZYRDLHIWXQJCQ-YZOKENDUSA-L potassium alginate Chemical compound [K+].[K+].O1[C@@H](C([O-])=O)[C@@H](OC)[C@H](O)[C@H](O)[C@@H]1O[C@@H]1[C@@H](C([O-])=O)O[C@@H](O)[C@@H](O)[C@H]1O MZYRDLHIWXQJCQ-YZOKENDUSA-L 0.000 claims description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 description 4
- 239000000783 alginic acid Substances 0.000 description 4
- 229960001126 alginic acid Drugs 0.000 description 4
- 150000004781 alginic acids Chemical class 0.000 description 4
- 229910001424 calcium ion Inorganic materials 0.000 description 4
- 230000000704 physical effect Effects 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 3
- 238000003795 desorption Methods 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000004438 BET method Methods 0.000 description 2
- 239000000809 air pollutant Substances 0.000 description 2
- 231100001243 air pollutant Toxicity 0.000 description 2
- 239000006227 byproduct Substances 0.000 description 2
- 239000011575 calcium Substances 0.000 description 2
- 235000010410 calcium alginate Nutrition 0.000 description 2
- 239000000648 calcium alginate Substances 0.000 description 2
- 229960002681 calcium alginate Drugs 0.000 description 2
- OKHHGHGGPDJQHR-YMOPUZKJSA-L calcium;(2s,3s,4s,5s,6r)-6-[(2r,3s,4r,5s,6r)-2-carboxy-6-[(2r,3s,4r,5s,6r)-2-carboxylato-4,5,6-trihydroxyoxan-3-yl]oxy-4,5-dihydroxyoxan-3-yl]oxy-3,4,5-trihydroxyoxane-2-carboxylate Chemical compound [Ca+2].O[C@@H]1[C@H](O)[C@H](O)O[C@@H](C([O-])=O)[C@H]1O[C@H]1[C@@H](O)[C@@H](O)[C@H](O[C@H]2[C@H]([C@@H](O)[C@H](O)[C@H](O2)C([O-])=O)O)[C@H](C(O)=O)O1 OKHHGHGGPDJQHR-YMOPUZKJSA-L 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 239000003245 coal Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000002198 insoluble material Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 229910001415 sodium ion Inorganic materials 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000002336 sorption--desorption measurement Methods 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/30—Active carbon
- C01B32/354—After-treatment
- C01B32/36—Reactivation or regeneration
- C01B32/366—Reactivation or regeneration by physical processes, e.g. by irradiation, by using electric current passing through carbonaceous feedstock or by using recyclable inert heating bodies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/20—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising free carbon; comprising carbon obtained by carbonising processes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/30—Processes for preparing, regenerating, or reactivating
- B01J20/3042—Use of binding agents; addition of materials ameliorating the mechanical properties of the produced sorbent
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/30—Active carbon
- C01B32/312—Preparation
- C01B32/318—Preparation characterised by the starting materials
- C01B32/33—Preparation characterised by the starting materials from distillation residues of coal or petroleum; from petroleum acid sludge
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- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Analytical Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Toxicology (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Materials Engineering (AREA)
- Carbon And Carbon Compounds (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
본 발명에 따르면, 알긴산염, 폴리비닐알콜 및 메셀로스로 이루어진 군에서 선택된 어느 하나 또는 이들의 혼합물과 분말상의 오일 카본을 혼합하는 혼합단계; 및 혼합단계에서 형성된 혼합물에 염화칼슘 수용액을 분무하여, 분말상의 오일 카본이 경화되도록 하는 경화단계를 포함하는 것을 특징으로 하는 활성탄 제조방법이 제공된다. According to the present invention, a mixing step of mixing any one or a mixture thereof and powdered oil carbon selected from the group consisting of alginate, polyvinyl alcohol and mecellose; And spraying a calcium chloride aqueous solution to the mixture formed in the mixing step, thereby providing a hardening step for curing the powdered oil carbon.
이와 같은 활성탄 제조방법에 의하면, 분말상의 오일 카본에 소정 비율의 알긴산염, 폴리비닐알콜, 메셀로스를 첨가함으로써, 높은 물리적 강도와 우수한 흡착능을 갖는 활성탄을 제공할 수 있으며, 염화칼슘 수용액을 분무하여, 보다 강도 높은 활성탄을 얻을 수 있는 장점을 갖는다.According to such a method for producing activated carbon, by adding a predetermined ratio of alginate, polyvinyl alcohol, and mecellose to powdered oil carbon, it is possible to provide activated carbon having high physical strength and excellent adsorption capacity, and spraying calcium chloride aqueous solution, It has the advantage of obtaining more intense activated carbon.
Description
도 1은 본 발명의 일실시예에 따른 활성탄 제조방법을 나타낸 흐름도,1 is a flowchart showing a method of manufacturing activated carbon according to an embodiment of the present invention;
도 2는 본 발명의 일실시예에 따른 활성탄을 나타낸 사진이다.2 is a photograph showing activated carbon according to an embodiment of the present invention.
본 발명은 활성탄 제조방법 및 그 활성탄에 관한 것으로서, 보다 상세하게는 분말상의 오일 카본을 우수한 강도와 흡착능을 갖는 활성탄으로 제조하여, 분말상의 오일 카본이 재이용가능하도록 한 활성탄 제조방법 및 그 활성탄에 관한 것이다. The present invention relates to a method for producing activated carbon and activated carbon thereof, and more particularly, to an activated carbon production method and activated carbon in which powdered oil carbon is made of activated carbon having excellent strength and adsorption capacity, so that powdered oil carbon is reusable. will be.
석유화학공장의 부산물에서는 분말상의 오일 카본을 회수할 수 있는데, 이 분말상의 오일 카본은 석탄계 및 식물계 활성탄과 유사한 흡탈착 성능을 가지고 있어, 현재 각종 수 처리 및 대기오염물질의 처리공정에 사용되고 있다. By-products of the petrochemical plant can recover powdered oil carbon, which has similar adsorption and desorption performances to coal-based and plant-based activated carbon, and is currently used in various water treatment and air pollutant treatment processes.
그러나 이러한 분말상의 오일 카본은 입상화되지 않은 형태로 사용되기 때문에, 처리시설에 분진이 비산하여 작업환경을 악화시키는 문제점을 갖고 있으며, 불순물을 제거하는 용액을 탄분으로 검게 오염시키는 문제가 발생한다. However, since the powdered oil carbon is used in a non-granular form, dust is scattered in a treatment facility, which has a problem of deteriorating a working environment, and a problem of black contamination of a solution for removing impurities with carbon powder occurs.
이에 따라, 상기와 같은 분말상의 오일 카본을 입상 활성탄으로 제조하기 위한 개발이 요구되고 있는 실정이며, 강도가 우수한 입상 활성탄을 제조하기 위한 많은 연구가 진행중에 있다.Accordingly, there is a demand for the development of powdered oil carbon as granular activated carbon as described above, and many studies for producing granular activated carbon having excellent strength are in progress.
본 발명은 상기의 문제점을 해결하기 위하여 창출된 것으로서, 분말상의 오일 카본을 우수한 강도와 흡착능을 갖는 활성탄으로 제조하여, 분말상의 오일 카본이 재이용가능하도록 한 활성탄 제조방법 및 그 활성탄을 제공하는데 그 목적이 있다. SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and provides an activated carbon production method and activated carbon thereof, in which powdery oil carbon is made of activated carbon having excellent strength and adsorption capacity, so that powdery oil carbon is reusable. There is this.
본 발명의 다른 목적 및 장점들은 하기에 설명될 것이며, 본 발명의 실시예에 의해 알게 될 것이다. 또한 본 발명의 목적 및 장점들은 특허청구범위에 나타낸 수단 및 조합에 의해 실현될 수 있다. Other objects and advantages of the invention will be described below and will be appreciated by the embodiments of the invention. Further objects and advantages of the invention may be realized by the means and combinations indicated in the claims.
상기의 목적을 달성하기 위한 본 발명의 활성탄 제조방법은 알긴산염, 폴리비닐알콜 및 메셀로스로 이루어진 군에서 선택된 어느 하나 또는 이들의 혼합물과 분말상의 오일 카본을 혼합하는 혼합단계; 및 상기 혼합단계에서 형성된 혼합물에 염화칼슘 수용액을 분무하여, 분말상의 오일 카본이 경화되도록 하는 경화단계를 포함한다.Activated carbon production method of the present invention for achieving the above object is a mixing step of mixing any one or a mixture thereof and powdered oil carbon selected from the group consisting of alginate, polyvinyl alcohol and mecellose; And a curing step of spraying a calcium chloride aqueous solution on the mixture formed in the mixing step to cure the powdered oil carbon.
여기서, 상기 혼합단계는 분말상의 오일 카본 100중량부에 대하여, 알긴산염, 폴리비닐알콜 및 메셀로스로 이루어진 군에서 선택된 어느 하나 또는 이들의 혼합물을 0.5-20중량부로 혼합하는 것이 바람직하다.Here, in the mixing step, it is preferable to mix any one or a mixture thereof selected from the group consisting of alginate, polyvinyl alcohol and mecellose with respect to 100 parts by weight of powdered oil carbon at 0.5-20 parts by weight.
또한, 상기 경화단계는 상기 혼합단계에서 형성된 혼합물 100중량부에 대하여, 염화칼슘 수용액이 0.5-20중량부 포함되도록 분무하는 것이 바람직하다.In addition, the curing step is preferably sprayed so that the aqueous solution of calcium chloride containing 0.5 to 20 parts by weight based on 100 parts by weight of the mixture formed in the mixing step.
아울러, 상기 알긴산염은 알긴산 나트륨(sodium alginate), 알긴산 칼륨(potassium alginate) 및 알긴산 암모늄(ammonium alginate)으로 이루어진 군에서 선택되는 하나 또는 이들의 혼합물인 것이 바람직하다.In addition, the alginate is preferably one or a mixture thereof selected from the group consisting of sodium alginate, potassium alginate, and ammonium alginate.
게다가, 상기 혼합단계 다음으로, 혼합단계에서 형성된 혼합물에 함유된 휘발성 성분을 제거하는 건조단계를 더 포함하는 것이 바람직하다.Furthermore, after the mixing step, it is preferable to further include a drying step for removing volatile components contained in the mixture formed in the mixing step.
상기의 다른 목적을 달성하기 위하여, 본 발명은 상기의 활성탄 제조방법으로 제조되며, 그 경도는 95-99.5%, 요오드 흡착능은 1,050-1,200mg/g, 비표면적은 1,100-1,300m2/g인 것을 특징으로 하는 활성탄을 제공한다.In order to achieve the above another object, the present invention is prepared by the above method of producing activated carbon, the hardness is 95-99.5%, iodine adsorption capacity of 1,050-1,200mg / g, specific surface area is 1,100-1,300m 2 / g It provides an activated carbon, characterized in that.
이하 첨부된 도면을 참조하면서 본 발명에 따른 바람직한 실시예를 상세히 설명하기로 한다. 이에 앞서, 본 명세서 및 청구범위에 사용된 용어나 단어는 통상적이거나 사전적인 의미로 한정해서 해석되어서는 아니되며, 발명자는 그 자신의 발명을 가장 최선의 방법으로 설명하기 위해 용어의 개념을 적절하게 정의할 수 있다는 원칙에 입각하여, 본 발명의 기술적 사상에 부합하는 의미와 개념으로 해석되어야만 한다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. Prior to this, terms or words used in the specification and claims should not be construed as having a conventional or dictionary meaning, and the inventors should properly explain the concept of terms in order to best explain their own invention. Based on the principle that it can be defined, it should be interpreted as meaning and concept corresponding to the technical idea of the present invention.
따라서, 본 명세서에 기재된 실시예와 도면에 도시된 구성은 본 발명의 가장 바람직한 일실시예에 불과할 뿐이고 본 발명의 기술적 사상을 모두 대변하는 것은 아니므로, 본 출원시점에 있어서 이들을 대체할 수 있는 다양한 균등물과 변형예들 이 있을 수 있음을 이해하여야 한다.Therefore, the embodiments described in the specification and the drawings shown in the drawings are only one of the most preferred embodiments of the present invention and do not represent all of the technical idea of the present invention, various modifications that can be replaced at the time of the present application It should be understood that there may be equivalents and variations.
이하, 도 1을 참조하여 본 발명의 일실시예에 따른 활성탄 제조방법을 설명하도록 한다.Hereinafter, an activated carbon manufacturing method according to an embodiment of the present invention will be described with reference to FIG. 1.
도 1은 본 발명의 일실시예에 따른 활성탄 제조방법을 나타낸 흐름도이다.1 is a flowchart illustrating a method of manufacturing activated carbon according to an embodiment of the present invention.
본 발명의 일실시예에 따른 활성탄 제조방법은 혼합단계(S110) 및 경화단계(S120)를 포함한다.Activated carbon manufacturing method according to an embodiment of the present invention includes a mixing step (S110) and a curing step (S120).
상기 혼합단계(S110)는 알긴산염, 폴리비닐알콜 및 메셀로스로 이루어진 군에서 선택된 어느 하나 또는 이들의 혼합물과 분말상의 오일 카본을 혼합하는 단계이다. 여기서, 상기 알긴산염은 알긴산 나트륨(sodium alginate), 알긴산 칼륨(potassium alginate) 및 알긴산 암모늄(ammonium alginate)으로 이루어진 군에서 선택되는 하나 또는 이들의 혼합물이 사용된다. 이렇게 1가 이온을 포함하는 알긴산염을 사용함으로써, 알긴산염이 후술할 경화단계에서 분무되는 염화칼슘 수용액과 반응되어, 보다 경화된 활성탄을 얻을 수 있다. 자세한 설명은 후술하도록 한다. The mixing step (S110) is a step of mixing powdered oil carbon with any one or a mixture thereof selected from the group consisting of alginate, polyvinyl alcohol and mecellose. Here, the alginate is one or a mixture thereof selected from the group consisting of sodium alginate, potassium alginate, and ammonium alginate. By using the alginate containing monovalent ions as described above, the alginate is reacted with the calcium chloride aqueous solution sprayed in the curing step to be described later, thereby obtaining more cured activated carbon. Detailed description will be described later.
여기서, 분말상의 오일 카본 100중량부에 대하여, 알긴산염, 폴리비닐알콜 및 메셀로스로 이루어진 군에서 선택된 어느 하나 또는 이들의 혼합물은 0.5-20중량부로 혼합되는 것이 바람직하다. 알긴산염, 폴리비닐알콜 및 메셀로스로 이루어진 군에서 선택된 어느 하나 또는 이들의 혼합물이 0.5중량부 미만으로 첨가되면, 제조되는 활성탄의 물리적 강도가 낮아지게 되거나, 흡탈착 성능이 떨어지게 되는 문제가 발생할 수 있으며, 20중량부를 초과하여 첨가되면, 제조원가가 상승하여 경 제적으로 활성탄을 제조할 수 없게 된다.Here, with respect to 100 parts by weight of powdered oil carbon, any one selected from the group consisting of alginate, polyvinyl alcohol and mecellose or a mixture thereof is preferably mixed at 0.5-20 parts by weight. If any one or a mixture thereof selected from the group consisting of alginate, polyvinyl alcohol and mecelose is added in an amount less than 0.5 parts by weight, the physical strength of the activated carbon may be lowered or the adsorption / desorption performance may be deteriorated. And, if added in excess of 20 parts by weight, the manufacturing cost rises, it becomes impossible to produce activated carbon economically.
본 발명에 따르면, 상기의 혼합단계(S110) 다음으로, 건조단계가 더 포함될 수 있다. 이 건조단계에서는 상기 혼합단계에서 제조된 혼합물에 함유되어 있는 휘발성 물질이 제거되도록 한다. 이렇게 건조단계에서 혼합물에 함유된 휘발성 물질을 제거함으로써, 후술할 경화단계(S120)에서 혼합물과 염화칼슘 수용액의 반응이 더 효율적으로 일어나도록 할 수 있다. According to the present invention, after the mixing step (S110), a drying step may be further included. In this drying step, the volatile substances contained in the mixture prepared in the mixing step are removed. In this way, by removing the volatile substances contained in the mixture in the drying step, the reaction of the mixture and the aqueous solution of calcium chloride in the curing step (S120) to be described later may occur more efficiently.
상기 경화단계(S120)는 혼합단계(S110)에서 형성된 혼합물에 염화칼슘(CaCl2) 수용액을 분무하여, 분말상의 오일 카본이 경화되도록 하는 단계이다. 여기서, 분무된 염화칼슘 수용액에 존재하는 칼슘이온(Ca2+)은 알긴산과 결합하게 되며, 칼슘이온과 알긴산이 결합하면, 불용성의 물질이 되어 경화되는 것이다. 예를 들어 더욱 자세하게 설명하면, 알긴산 나트륨을 이용하였을 때, 알긴산 나트륨에 존재하는 나트륨 이온(Na+)은 경화단계(S120)에서 분무되는 염화칼슘 수용액에 존재하는 염화이온(Cl-)과 반응하여, 염화나트륨(Nacl)이 생성되어, 물에 용해된다. 또한, 알긴산은 칼슘이온(Ca2+)과 반응하게 되는데, 이 알긴산과 칼슘이온 반응의 반응물로, 알긴산 칼슘이 생성되면서 경화된다. 생성되는 알긴산 칼슘은 물에 녹지 않는 불용의 물질이고, 경화(network) 반응이 일어나기 때문에, 활성탄 분말들을 더욱 경화되도록 할 수 있는 것이다.The curing step (S120) is a step of spraying calcium chloride (CaCl 2 ) aqueous solution to the mixture formed in the mixing step (S110), so that the powdered oil carbon is cured. Here, calcium ions (Ca 2+ ) present in the sprayed aqueous calcium chloride solution are combined with alginic acid, and when calcium ions and alginic acid are combined, they become insoluble materials and are cured. For example, in more detail, when sodium alginate is used, sodium ions (Na + ) present in sodium alginate react with ions (Cl − ) present in the aqueous calcium chloride solution sprayed in the curing step (S120), Sodium chloride (Nacl) is produced and dissolved in water. In addition, alginic acid reacts with calcium ions (Ca 2+ ), which is a reactant of the alginic acid and calcium ions, and hardens as calcium alginate is produced. The resulting calcium alginate is an insoluble substance that is insoluble in water, and because a network reaction occurs, the activated carbon powders can be further cured.
여기서, 본 발명의 일실시예에 따르면, 상기 염화칼슘 수용액으로는 2-5 중 량%의 염화칼슘(CaCl2) 수용액이 사용된다. 또한, 이러한 경화단계(S120)는 혼합단계(S110)에서 형성된 혼합물 100중량부에 대하여, 염화칼슘 수용액이 0.5-20중량부 포함되도록 분무하는 것이 바람직하다. 여기서, 염화칼슘 수용액이 상기의 범위를 벗어나 0.5중량부 미만이 사용되면, 제조되는 활성탄의 강도가 낮아지는 문제가 발생할 수 있으며, 20중량부를 초과하여 사용되면, 제조 비용이 상승하게 된다.Here, according to one embodiment of the present invention, 2-5% by weight of calcium chloride (CaCl 2 ) aqueous solution is used as the calcium chloride aqueous solution. In addition, the curing step (S120) is preferably sprayed so that the aqueous solution of calcium chloride containing 0.5 to 20 parts by weight based on 100 parts by weight of the mixture formed in the mixing step (S110). Here, if less than 0.5 parts by weight of the aqueous calcium chloride solution is used out of the above range, the problem that the strength of the activated activated carbon is lowered may occur, and when used in excess of 20 parts by weight, the production cost increases.
이하, 상기와 같은 제조방법으로 제조된 본 발명의 일실시예에 따른 활성탄을 설명하도록 한다.Hereinafter, to describe the activated carbon according to an embodiment of the present invention manufactured by the above manufacturing method.
본 발명에 따른 활성탄은 그 경도가 95-99.5%에 해당한다. 이러한 경도는 KS M 1802 규격에 따라 측정된 수치이다. 이렇게 경도가 높은 활성탄을 제조함으로써, 작업지에 먼지, 비산 등이 생성되지 않아 작업 환경을 개선할 수 있게 되며, 그 취급 또한 용이하게 된다. Activated carbon according to the present invention has a hardness of 95-99.5%. This hardness is measured according to the KS M 1802 standard. By manufacturing the activated carbon having such a high hardness, dust, scattering, etc. are not generated in the working paper, so that the working environment can be improved, and the handling thereof is also easy.
본 발명에 따른 활성탄은 그 요오드 흡착능이 1,050-1,200mg/g에 달하는 데, 이 또한, KS M 1802 규격에 따라 측정된 수치이다. 이는, 분말상의 카본에서 제조된 입상의 활성탄의 흡착능이 우수한 것을 보여준다. 이렇게 흡착능이 우수한 활성탄을 제조함으로써, 각종 수처리 및 대기오염물질의 처리공정에 효과적으로 이용할 수 있게 된다.Activated carbon according to the present invention has an iodine adsorption capacity of 1,050-1,200 mg / g, which is also measured according to the KS M 1802 standard. This shows that the adsorption capacity of granular activated carbon produced from powdered carbon is excellent. By producing activated carbon having excellent adsorption capacity, it can be effectively used in various water treatment and treatment processes of air pollutants.
또한, 본 발명에 따른 활성탄은 그 비표면적이 1,100-1,300m2/g인 것이 바람직하다. 이는 질소 흡착 BET 방법으로 측정된 수치이다. In addition, the activated carbon according to the present invention preferably has a specific surface area of 1,100-1,300 m 2 / g. This is the value measured by the nitrogen adsorption BET method.
이하, 실시예 1 및 2를 통하여, 본 발명에 따른 활성탄 제조방법에 따라 제조된 활성탄의 물성을 측정하였다.Hereinafter, through Examples 1 and 2, the physical properties of the activated carbon prepared according to the activated carbon production method according to the present invention was measured.
실시예Example 1 One
알긴산 나트륨 12g 및 폴리비닐알콜 12g을 용해시킨 수용액 600g과 분말상의 오일 카본 400g을 혼합조에서 혼합시켜 페이스트(paste)를 만들었으며, 압출기(Extruder)를 사용하여 압출하면서 적당한 길이로 절단하여 90℃의 열풍으로 50분 동안 일차 건조하였다. 일차 건조 후, 200℃에서 2시간 동안 이차 건조를 하여 남아 있는 휘발성 성분을 제거하고, 3% 염화칼슘 수용액을 분무하여 알긴산 나트륨 및 폴리비닐알콜을 용해시킨 수용액과 혼합되어 있는 분말상의 오일 카본을 경화시키고 도 2와 같은 입상 활성탄을 제조하였다. 600 g of an aqueous solution of 12 g of sodium alginate and 12 g of polyvinyl alcohol and 400 g of powdered oil carbon were mixed in a mixing tank to make a paste. The extruder was extruded and cut into appropriate lengths at 90 ° C. Primary drying for 50 minutes with hot air. After primary drying, secondary drying was performed at 200 ° C. for 2 hours to remove the remaining volatile components, and the powdered oil carbon mixed with the aqueous solution in which sodium alginate and polyvinyl alcohol were dissolved by spraying 3% calcium chloride aqueous solution was cured. Granular activated carbon as shown in FIG. 2 was prepared.
이렇게 제조된 입상 활성탄의 경도, 요오드 흡착능 및 비표면적을 측정하였는데, 여기서, 경도와 요오드 흡착능은 KS M 1802 규격에 따라, 비표면적은 질소 흡착 BET 방법으로 측정하였다.The hardness, iodine adsorption capacity and specific surface area of the granular activated carbon thus prepared were measured. Here, the hardness and iodine adsorption capacity were measured according to the KS M 1802 standard, and the specific surface area was measured by nitrogen adsorption BET method.
이상의 제조방법으로 얻어진 입상 활성탄의 물성은 다음 표 1에 나타내었다.Physical properties of the granular activated carbon obtained by the above manufacturing method are shown in Table 1 below.
실시예Example 2 2
알긴산 나트륨 12g 및 메셀로스 12g을 용해시킨 수용액 600g과 분말상의 오일 카본 400g을 혼합조에서 혼합시켜 페이스트(paste)를 만들었으며, 압출기(Extruder)를 사용하여 압출하면서 적당한 길이로 절단하여 90℃의 열풍으로 50분 동안 일차 건조하였다. 이하 실시예 1과 동일한 방법으로 처리하고, 실시예 1과 동일한 방법으로 입상 활성탄의 물성을 측정하였다. 600 g of an aqueous solution in which 12 g of sodium alginate and 12 g of mecellose were dissolved and 400 g of powdered oil carbon were mixed in a mixing bath to make a paste. Primary drying for 50 minutes. The treatment was carried out in the same manner as in Example 1 below, and the physical properties of the granular activated carbon were measured in the same manner as in Example 1.
이상의 제조방법으로 얻어진 입상 활성탄의 물성은 다음 표 1에 나타내었다. Physical properties of the granular activated carbon obtained by the above manufacturing method are shown in Table 1 below.
표 1을 참조하면, 본 발명에 따른 활성탄은 그 요오드 흡착량, 흡착 비표면적 및 탈착 비표면적이 크기 때문에, 오염 물질을 높은 효율로 흡착 및 탈착시킬 수 있게 되어, 각종 오염 물질 제거 시설에 효과적으로 이용될 수 있다. 또한, 본 발명에 따른 활성탄은 그 경도가 높아, 작업지에 비산, 먼지 등이 생성되지 않도록 하여, 작업자의 근무 환경을 획기적으로 개선시킬 수 있으며, 그 취급 또한 용이하게 된다. Referring to Table 1, since the activated carbon according to the present invention has a large amount of iodine adsorption, an adsorption specific surface area and a desorption specific surface area, the activated carbon can be adsorbed and desorbed with high efficiency, effectively used in various pollutant removal facilities Can be. In addition, the activated carbon according to the present invention has a high hardness, so that scattering, dust, and the like are not generated in the work paper, and the working environment of the worker can be improved dramatically, and the handling thereof is also easy.
이상과 같이, 본 발명은 비록 한정된 실시예와 도면에 의해 설명되었으나, 본 발명은 이것에 의해 한정되지 않으며 본 발명이 속하는 기술 분야에서 통상의 지식을 가진 자에 의해 본 발명의 기술 사상과 아래에 기재될 청구범위의 균등 범위 내에서 다양한 수정 및 변형이 가능함은 물론이다. As mentioned above, although this invention was demonstrated by the limited embodiment and drawing, this invention is not limited by this, The person of ordinary skill in the art to which this invention belongs, Of course, various modifications and variations are possible within the scope of equivalents of the claims to be described.
상술한 바와 같이, 본 발명의 활성탄 제조방법 및 그 활성탄에 의하면, As described above, according to the activated carbon production method and the activated carbon of the present invention,
첫째, 분말상의 오일 카본에 소정 비율의 알긴산염, 폴리비닐알콜, 메셀로스를 첨가함으로써, 높은 물리적 강도와 우수한 흡착능을 갖는 활성탄을 제공할 수 있다.First, by adding a predetermined ratio of alginate, polyvinyl alcohol, and mecellose to powdered oil carbon, it is possible to provide activated carbon having high physical strength and excellent adsorption capacity.
둘째, 염화칼슘 수용액을 분무하여, 보다 강도 높은 활성탄을 얻을 수 있다.Second, by spraying the calcium chloride aqueous solution, it is possible to obtain a higher strength activated carbon.
셋째, 석유화학 부산물로부터 회수한 분말상의 오일 카본을 입상 활성탄으로 제조하여, 분말상의 오일 카본을 효과적으로 재이용할 수 있게 된다. Third, the powdered oil carbon recovered from the petrochemical by-product is made of granular activated carbon, and the powdered oil carbon can be effectively reused.
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| CN113003571A (en) * | 2021-04-29 | 2021-06-22 | 长安大学 | Nitrogen-doped sodium alginate-based porous carbon material and preparation method and application thereof |
| CN115180622A (en) * | 2022-07-06 | 2022-10-14 | 浙江农林大学 | Method for preparing high-specific-surface-area activated carbon with assistance of ball milling |
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| CN113003571A (en) * | 2021-04-29 | 2021-06-22 | 长安大学 | Nitrogen-doped sodium alginate-based porous carbon material and preparation method and application thereof |
| CN115180622A (en) * | 2022-07-06 | 2022-10-14 | 浙江农林大学 | Method for preparing high-specific-surface-area activated carbon with assistance of ball milling |
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