CN103213985B - Process for preparing bio-charcoal by zinc borate flame retarding method - Google Patents
Process for preparing bio-charcoal by zinc borate flame retarding method Download PDFInfo
- Publication number
- CN103213985B CN103213985B CN201310147953.6A CN201310147953A CN103213985B CN 103213985 B CN103213985 B CN 103213985B CN 201310147953 A CN201310147953 A CN 201310147953A CN 103213985 B CN103213985 B CN 103213985B
- Authority
- CN
- China
- Prior art keywords
- charcoal
- bio
- zinc borate
- flame retarding
- retarding method
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Carbon And Carbon Compounds (AREA)
Abstract
The invention relates to a process for preparing bio-charcoal by a zinc borate flame retarding method. The preparation process comprises the following steps of: mixing lotus rod powder according to different mass ratios; then, adding deionized water and uniformly mixing; after a period of soaking, carbonizing and activating in a Muffle furnace for 40 minutes; washing the carbonized sample by use of hydrochloric acid and tap water sequentially till the pH is stabilized at 6.5-7.0; and drying. According to the bio-charcoal prepared by the invention, the environmental pollution in the preparation process of the bio-charcoal can be reduced, the bio-charcoal yield is improved, the surface oxygen content of the bio-charcoal is remarkably increased, and the absorption effect of the bio-charcoal to nickel is greatly improved.
Description
One, technical field
The present invention relates to a kind of phyteral charcoal preparation technology, belong to charcoal preparing technical field.
Two, background technology
Phyteral charcoal refers to that biomass under anoxia condition process the charcoal making through high temperature carbonization, is widely used in carbon dioxide fixation, drainage of soil system enhancement, greenhouse gases and seals, strengthens the aspects such as soil fertility, absorb polluted matter up for safekeeping.
Zinc borate is a kind of cheapness, easily obtain, the efficient flame-retarding agent of nontoxic, high thermal stability, good dispersity.Under comparatively high temps, zinc borate can form watertight layer in precursor, stops the surperficial inflammable gas of precursor and the release of volatiles.
For the preparation of charcoal, mainly using phosphoric acid as activator, probe into emphatically differing materials, different pyrolysis temperature, the impact of different pyrolysis time on charcoal, at present, not yet find to using that zinc borate prepares the report of charcoal as activator.
Three, summary of the invention
The present invention has provided usings the zinc borate of tool flame retardant properties and as activator, prepares the method for charcoal: the zinc borate that adds in mass ratio different mass in lotus bar makes through pyrolysis charring at a certain temperature.
The present invention makees activator with zinc borate, and to prepare the technique of biomass charcoal as follows:
(1) by lotus bar powder in mass ratio 1:1～4:1 mix with zinc borate, then add after deionized water mixing and stirring, under 105 degree, flood 8 hours;
(2) the good sample of above-mentioned dipping is placed in to retort furnace carbonization-activation 40 minutes;
(3) the good sample of charing is first used after salt acid elution, then with tap water washing, be stabilized at 6.5～7.0 o'clock to pH, dry, make charcoal.
The present invention mixes with lotus bar the charcoal making by zinc borate, can reduce the pollution to environment in charcoal preparation process, and charcoal yield improves, and charcoal content of surface oxygen significantly increases, and significantly improves the adsorption effect of charcoal to nickel.The present invention does not contrast with not adding zinc borate, and prepared charcoal yield improves 15%～25%; Content of surface oxygen increases by 10%～20%; The adsorptive capacity of nickel is increased to 3～10 times.
Four, embodiment
Embodiment 1
By the lotus bar powder of particle diameter 0.45～1.0mm in mass ratio 1:1 zinc borate mix, under 105 degree, flood 8 hours after adding deionized water mixing and stirring, dipping sample is placed in retort furnace carbonization-activation 40 minutes under 300 degree.The good sample of charing first with after hydrochloric acid with tap water washing, to pH=6.5～7.0, dry, make charcoal.
Embodiment 2
The lotus bar powder of particle diameter 0.45～1.0mm is mixed with zinc borate with mass ratio 2:1, flood 8 hours after adding deionized water mixing and stirring under 105 degree, dipping sample is placed in retort furnace carbonization-activation 40 minutes under 350 degree.The good sample of charing first with after hydrochloric acid with tap water washing, to pH=6.5～7.0, dry, make charcoal.
Embodiment 3
The lotus bar powder of particle diameter 0.45～1.0mm is mixed with zinc borate with mass ratio 4:1, flood 8 hours after adding deionized water mixing and stirring under 105 degree, dipping sample is placed in retort furnace carbonization-activation 40 minutes under 400 degree.The good sample of charing first with after hydrochloric acid with tap water washing, to pH=6.5～7.0, dry, make charcoal.
Claims (1)
1. the fire-retardant legal system of zinc borate, for a charcoal technique, is characterized in that this preparation technology is as follows:
(1) by lotus bar powder in mass ratio 1:1～4:1 mix with zinc borate, then add after deionized water mixing and stirring, under 105 degree, flood 8 hours;
(2) the good sample of above-mentioned dipping is placed in to retort furnace carbonization-activation 40 minutes;
(3) the good sample of charing is first used after salt acid elution, then with tap water washing, be stabilized at 6.5～7.0 o'clock to pH, dry, make charcoal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310147953.6A CN103213985B (en) | 2013-04-25 | 2013-04-25 | Process for preparing bio-charcoal by zinc borate flame retarding method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310147953.6A CN103213985B (en) | 2013-04-25 | 2013-04-25 | Process for preparing bio-charcoal by zinc borate flame retarding method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103213985A CN103213985A (en) | 2013-07-24 |
| CN103213985B true CN103213985B (en) | 2014-11-26 |
Family
ID=48812216
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310147953.6A Active CN103213985B (en) | 2013-04-25 | 2013-04-25 | Process for preparing bio-charcoal by zinc borate flame retarding method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103213985B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5614459A (en) * | 1995-06-07 | 1997-03-25 | Universidad De Antioquia | Process for making activated charcoal |
| CN101219787A (en) * | 2008-01-25 | 2008-07-16 | 山东大学 | Method for preparing bean tendril absorbent charcoal |
| CN102757048A (en) * | 2012-07-24 | 2012-10-31 | 河南华美生物工程有限公司 | Method for preparing activated carbon from peonies |
-
2013
- 2013-04-25 CN CN201310147953.6A patent/CN103213985B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5614459A (en) * | 1995-06-07 | 1997-03-25 | Universidad De Antioquia | Process for making activated charcoal |
| CN101219787A (en) * | 2008-01-25 | 2008-07-16 | 山东大学 | Method for preparing bean tendril absorbent charcoal |
| CN102757048A (en) * | 2012-07-24 | 2012-10-31 | 河南华美生物工程有限公司 | Method for preparing activated carbon from peonies |
Non-Patent Citations (2)
| Title |
|---|
| 硼酸锌和聚磷酸铵在木材阻燃中的成炭作用和抑烟作用;胡云楚;《中国博士学位论文全文数据库》;20061231;第24页 * |
| 胡云楚.硼酸锌和聚磷酸铵在木材阻燃中的成炭作用和抑烟作用.《中国博士学位论文全文数据库》.2006,第24页. * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103213985A (en) | 2013-07-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Nan et al. | Pyrolysis temperature-dependent carbon retention and stability of biochar with participation of calcium: Implications to carbon sequestration | |
| Wang et al. | TG study on pyrolysis of biomass and its three components under syngas | |
| Cao et al. | Characterization of wood chars produced at different temperatures using advanced solid-state 13C NMR spectroscopic techniques | |
| Yang et al. | Influence of mineral matter on pyrolysis of palm oil wastes | |
| CN102069519B (en) | Fire retardant for wood, and preparation method and treatment process thereof | |
| Cheng et al. | Bio-based coating of phytic acid, chitosan, and biochar for flame-retardant cotton fabrics | |
| Mao et al. | Preparation of pinewood-and wheat straw-based activated carbon via a microwave-assisted potassium hydroxide treatment and an analysis of the effects of the microwave activation conditions | |
| Chen et al. | The synergistic effect of cuprous oxide on an intumescent flame-retardant epoxy resin system | |
| CN108343464B (en) | A kind of anti-oxidant retardant of mining hydrophilic and preparation method thereof | |
| CN102863653B (en) | Fire retardant | |
| Chen et al. | Silicon oxide encapsulated ZIF-8 loaded on reduced graphene oxide to improve flame retardancy of waterborne epoxy coatings | |
| Wang et al. | Effect of expandable graphite on polyester resin-based intumescent flame retardant coating | |
| Sikora et al. | A systematic experimental study on biochar-cementitious composites: Towards carbon sequestration | |
| Liu et al. | Development of biochars from pyrolysis of lotus stalks for Ni (II) sorption: using zinc borate as flame retardant | |
| CN115646446B (en) | Preparation method and application of modified biochar for enhanced adsorption of perfluorinated compounds | |
| Jia et al. | Flame retardant ethylene‐vinyl acetate composites based on layered double hydroxides with zinc hydroxystannate | |
| CN103112852B (en) | Technology for preparing high oxygenous functional group activated carbon through phosphate activation method | |
| CN107915224A (en) | The method of activated carbon and the activated carbon of acquisition are prepared using semi-coke small powder and coal tar | |
| CN103408011A (en) | Preparation method of sargassum horneri matrix activated carbon | |
| CN109731272B (en) | Preparation and application method of synthetic aerosol fire extinguishing agent | |
| CN103213985B (en) | Process for preparing bio-charcoal by zinc borate flame retarding method | |
| Deng et al. | Comparative study of the combustion and kinetic characteristics of fresh and naturally aged pine wood | |
| Luo et al. | The influence of biomass type on hydrothermal carbonization: Role of calcium oxalate in enhancing carbon sequestration of hydrochar | |
| Ofori-Boadu et al. | Physiochemical characterization of agricultural waste biochars for partial cement replacement | |
| CN111925562A (en) | Synergistic inhibition method of flame-retardant warm mixing agent on thermal decomposition of asphalt mixture |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |