一部分大型骨干纯碱企业以自身为主体组建大集团 ,如大化公司与大连复州湾盐场、大连染料厂联合收购了金光化工厂、大连油漆厂等 ,组建了“大化集团” ;潍坊纯碱厂与山东羊口盐场等单位联合成立了“山东海洋化工股份有限公司” ;唐山碱厂与唐山化纤纺织集团组建了“三友集团” Some large backbone soda ash companies set up large groups with themselves as the main body. For example, Dahua Company and Dalian Fuzhou Bay Salt Factory and Dalian Dye Factory jointly acquired Jinguang Chemical Factory and Dalian Paint Factory, and established the “Dahua Group”; Weifang Soda Plant Established “Shandong Marine Chemicals Co., Ltd.” together with units such as Shandong Yangkou Saltworks; Tangshan Soda Factory and Tangshan Chemical Fiber Textile Group established “Sanyou Group”