(1) coal-based activated carbon, also known as coal-based activated carbon.
It is a general term for a large class of activated carbon products made of various raw coal through different processes.Coal-based activated carbon can be divided into molding carbon and raw coal direct crushing carbon according to the different manufacturing process.
The former and can be further subdivided into wet molding charcoal (such as tar, papermaking black liquor, such as starch paste liquid adhesive manufacturing columnar, ball charcoal, honeycomb carbon, etc.) and dry molding charcoal (such as join solid bitumen, starch, such as tree powder as adhesive used for Mao briquette made of molding process, tabletting, pelleting and broken charcoal or rules of pelleting shape activated carbon).
Generally speaking, forming carbon can be mixed with a variety of raw coal to adjust the pore distribution characteristics of the final product, so as to obtain some special application performance, and more than 80% of the pore distribution characteristics of raw coal directly broken carbon has been determined by the raw material, so the performance and use is simple.
(2) wood activated carbon.It is mshell/core activated carbon.Such as coconut shell carbon, apricot kernel carbon, peach kernel carbon, etc.(4) petroleum activated carbon.Using petroleum asphalt, petroleum coke as raw materials, made of activated carbon products.resin activated carbon.Using phenolic resin, waste ion exchange resin as raw materials, through a special process of activity.Carbon products, sometimes fibrous carbon also falls into this category.High - definition watermark of cut document under air(6) other small varieties of activated carbon products.ln the first part of the thesis, the capability of activated carbon fiber (ACF) treated bydifferent kinds of acids for adsorption removal of thiophenic sulfur compounds was evaluatedin the batch-type adsorption process. The results show that the as-received ACF adsorbent,efficiently adsorbs the bigger size sulfur compounds, and the removal efficiency for the sulfurcompounds follows in the order of 4,6-DMDBT > DBT > BT > T. Effect of treatmenttemperature and time by SN acid (ratio of volume of H,SO4 to HNO, is 3:1) on ACFadsorption removal of thiophenic sulfur compounds was studied.The results show thatoxidation with SN acid at room temperature can remove the ashes or inorganic components ofthe ACF adsorbent as well as change in the surface chemistry，introduce theoxygen-containing functional groups such as carboxyl and hydroxyl, improve the adsorptioncapability of ACF for removal of thiophenic sulfur compounds.
The polishing slurry and processing technology of micro-abrasive slurry jet were studied.
Through the analysis of the physical and chemical properties of additives and their state changes under the jet, the comprehensive effects of the types and proportions of different additives, as well as the types, proportions and particle sizes of abrasive on the formation of uniform slurry, the promotion of good abrasive dispersion and the jet polishing effect were explored.
The effects of different types of nozzles, polishing slurry, jet distance, jet time, different initial RA, jet pressure and jet Angle on the surface profile, material removal depth and surface quality of the workpiece were studied through polishing experiments.
The local Ra of the optical glass surface is in the range of 20nm~50nm by MASJP, and the lowest Ra is 10.24nm.
1. Combined with Zeta potential, sedimentation experiment, viscosity measurement and other methods, the influence of various dispersants on CEO and slurry suspension effect was studied.
The results showed that the formula with good stability was the appropriate concentration of mixed dispersant (NAP +SBN) or (NAP +PAM+SBN).