B. F. Goodrich Company beginning in 1926 (10). Someyears earlier, Fritz Klatte had developed the first practical route to vinyl chloridewhile looking to find uses for acetylene [74-86-2] for Chemische Fabrik Grie-sheim-Elektron. This process, in which hydrogen chloride [7647-01-0], HCl,...
Vinyl chloride containing HCl as an impurity is purified by distilling said vinyl chloride in the presence of a compound containing at least one vic-epoxy group. Preferred epoxy compounds are those of the formula where R is hydrogen or an alkyl, cycloalkyl, alkenyl, cycloalkenyl, aryl, ar...
a slight excess of HCl is used over stoichiometry. “About 99% conversion of acetylene and 98% conversion of HCl are achieved. The selectivity to vinyl chloride is good – more than 98% -and the only significant side reaction is the further addition of HCl to vinyl chloride to form 1,1...
氯乙烯CH2=CHCl气体测毒管132SC VINYL CHLORIDE 0.1-12.0ppm,应急处理: 迅速撤离泄漏污染区人员至上风处,并进行隔离,严格限制出入。切断火源。建议应急处理人员戴自给正压式呼吸器,穿防静电工作服。尽可能切断泄漏源。用工业覆盖层或吸附/ 吸收剂盖住泄漏点附近的下水道等地方,防止气体进入。合理通风,加速扩散。喷...
The industrial production of vinyl chloride (VCM) by pyrolysis of purified 1,2-dichloroethane (EDC) is known but the pyrolysis does not proceed quantitatively. The dichloroethane is directly heated in vapor form in a pyrolysis apparatus and cracked into vinyl chloride and hydrogen chloride (HCl) ...
During dehydrochlorination there is no HCl evolution as it forms a pyridine hydrochloride complex which is supposed to act as a catalyst for dehydrochlorination. A possible mechanism has been proposed. Chain scission and cross-linking reactions are responsible for the molecular weight changes that ...
According to the scrubbing process used, varying amounts of chloride salts are generated. These are the residues created in extracting the HCl from the incinerator exhaust. If a dry or semi-dry scrubbing process is used, I kg of pure PVC will produce approximately 1 kg of salts. These salts...
95–97The only essential information from these studies regards PVC/PPy and PVC/PANI blends which, when exposed to UV radiation, benefit from PVC degradation because evolved HCl dopes conductive polymers which render their conductivities to the blend. The blend without PVC degradation would have ...
这样聚氯乙烯就没有办法做出产品!聚氯乙烯这一反应是一个化学反应,是PVC加热后释放出氯化氢(HCl)的反应,根据这个反应只要不让Hcl很快脱出就能防止产品加工时变黄和变焦。所以热稳定剂就诞生了,它的作用就是捕捉Hcl拟制脱氯化氢反应!钙锌复合稳定剂,由于对环保和无毒、低毒高效无铅、无镉的发展引起国家的普遍重视。钙...
聚氯乙烯(polyvinylchloride)简称PVC是有氯乙烯单体(vinylchlo-ride monomer)简称VCM聚合而成的高分子化合物,聚合度可以用反应温度和聚合分子量调节剂进行控制 PVC糊树脂物理性质 外观:白色粉末 分子量:40600~111600 密度:1.35~1.45g/ml 表观密度:0.4~0.65g/ml 比热容(0~100℃):1.045~1.463J/(g. ℃) 热导率...