PE最通常的生產方法是通過淤漿或氣相加工法，也有少數用溶液相加工生產。所有這些加工過程都是由乙烯單體、a-烯烴單體、催化劑體系（可能是不止一種化合物）和各種類型的烴類稀釋劑參與的放熱反應。氫氣和一些催化劑用來控制分子量。淤漿反應器一般為攪拌釜或是一種更常用的大型環形反應器，在其中料漿可以循環攪拌。當乙烯和共聚單體（根據需要）和催化劑一接觸，就會形成聚 乙烯顆粒。除去稀釋劑后，聚乙烯顆粒或粉粒被干燥并按劑量加入添加劑，就生產出粒料。帶有雙螺桿擠出機的大型反應器的現代化生產線，可每小時生產PE40000磅以上。新的催化劑的開發為改進新等級HDPE的性能作出貢獻。兩種最常用的催化劑種類是菲利浦的鉻氧化物為基礎的催化劑和鈦化合物一烷基鋁催化劑。菲利浦型催化劑生產的HDPE有 中寬度分子量分布；鈦一烷基鋁催化劑 生產的分子量分布窄。用復式反應器生產窄MDW的聚合物所用催化劑也可用 于生產寬MDW品級。舉例來說，生產顯著不同分子量產 品的兩個串聯反應器可以生產出雙峰分子量聚合物，這種聚合物具有全寬域的分子量分布。
        Method for the production of PE is the most common by slurry or gas phase process, there are a few with solution phase processing. All of these processes are made of vinyl monomer, a- olefin monomer, catalyst system (may be more than one compound) exothermic reb and various types of hydrocarbon diluent participation. Hydrogen and catalyst is used to control the molecular weight. A slurry reactor is stirred tank or large loop reactor, a more common, in which the slurry can cycle stirred. When ethylene and a comonomer (as required) and catalyst contact, will b the polyethylene particles. After removal of the diluent, polyethylene particles or powder is dried and additive dosage, the production of pellets. Large reactor with double screw extruder production line, each hour pounds more than the PE40000 production. The development of new catalysts and contribute to the perbance improvement of the new class HDPE. Two kinds of catalyst is the most commonly used chrome oxide Philip based catalyst and titanium compound alkyl aluminium catalyst. Philip type catalyst for producing HDPE in b distribution of molecular weight; molecular weight titanium alkyl aluminium catalyst production of narrow distribution. With the production of narrow MDW complex reactor polymer catalyst can also be used in the production of wide MDW grade. For example, the production of different molecular mass production of two series reactor can produce Shuangfeng the polymer molecular weight, molecular weight distribution of the polymer has a full b domain.