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Efficient special carbon preparation method and mixing and kneading process thereof
The invention discloses an efficient special carbon preparation method which comprises the following steps: preparing raw materials, kneading, crushing, forming, roasting, dipping and graphitizing. Wherein the step of mixing and kneading comprises the following steps of preheating, mixing and kneading and cooling. The coke powder is composed of an additive with the average particle size less than 1-80 [mu] m and pitch coke, the specific surface area is large, and after the modified pitch is adopted as a binder to be pressurized and kneaded with the coke powder, the modified pitch can be uniformly permeated into pores of the coke powder and uniformly coated on the particle surface of the coke powder; compared with a traditional process, the preparation method has the advantages that sheet binding, one-time dipping and one-time roasting are omitted, efficiency is improved, cost is greatly reduced, physical and chemical properties of a final product are greatly improved by improving micromorphology, and the prepared product is compact in structure and good in uniformity and isotropy; the breaking strength and the volume density are greatly improved; and the yield is increased by 10-30%, and the method has a good industrialization prospect.
本发明公开一种高效的特碳制备方法包括有以下步骤：原料准备、混捏、粉碎、成型、焙烧、浸渍和石墨化；其中，混捏包括以下步骤：预热、混捏和冷却。焦体粉料由平均粒径不到1‑80μm之间的添加剂和沥青焦构成，比表面积大，采用改质沥青作为粘结剂与焦体粉料进行加压混捏之后，可以使改质沥青均匀地渗透到焦体粉料的气孔中，并均匀涂布在焦体粉料的颗粒表面；与传统工艺相比，本发明申请省掉了扎片和一次浸渍、一次焙烧，不仅提高了效率、大大降低了成本，通过提高微观形态，极大地提高了最终产品的物理化学性能，使得其所制得的产品结构致密，均匀性和各向同性好，且抗折强度和体积密度均得到大幅提高；以及，成品率提高10‑30％，具有良好的产业化前景。
Efficient special carbon preparation method and mixing and kneading process thereof
The invention discloses an efficient special carbon preparation method which comprises the following steps: preparing raw materials, kneading, crushing, forming, roasting, dipping and graphitizing. Wherein the step of mixing and kneading comprises the following steps of preheating, mixing and kneading and cooling. The coke powder is composed of an additive with the average particle size less than 1-80 [mu] m and pitch coke, the specific surface area is large, and after the modified pitch is adopted as a binder to be pressurized and kneaded with the coke powder, the modified pitch can be uniformly permeated into pores of the coke powder and uniformly coated on the particle surface of the coke powder; compared with a traditional process, the preparation method has the advantages that sheet binding, one-time dipping and one-time roasting are omitted, efficiency is improved, cost is greatly reduced, physical and chemical properties of a final product are greatly improved by improving micromorphology, and the prepared product is compact in structure and good in uniformity and isotropy; the breaking strength and the volume density are greatly improved; and the yield is increased by 10-30%, and the method has a good industrialization prospect.
本发明公开一种高效的特碳制备方法包括有以下步骤：原料准备、混捏、粉碎、成型、焙烧、浸渍和石墨化；其中，混捏包括以下步骤：预热、混捏和冷却。焦体粉料由平均粒径不到1‑80μm之间的添加剂和沥青焦构成，比表面积大，采用改质沥青作为粘结剂与焦体粉料进行加压混捏之后，可以使改质沥青均匀地渗透到焦体粉料的气孔中，并均匀涂布在焦体粉料的颗粒表面；与传统工艺相比，本发明申请省掉了扎片和一次浸渍、一次焙烧，不仅提高了效率、大大降低了成本，通过提高微观形态，极大地提高了最终产品的物理化学性能，使得其所制得的产品结构致密，均匀性和各向同性好，且抗折强度和体积密度均得到大幅提高；以及，成品率提高10‑30％，具有良好的产业化前景。
Efficient special carbon preparation method and mixing and kneading process thereof
高效的特碳制备方法及其混捏工艺
LI FANG (author) / WANG TIEJUN (author) / LIU YUMIN (author)
2023-08-11
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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