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十堰生產環氧孕酮批發

2022-04-20
十堰生產環氧孕酮批發

2010年(nian)(nian)為(wei)促進企業(ye)發展,湖北民(min)生工(gong)貿(mao)股份有限(xian)公司(si)(2011年(nian)(nian)更(geng)名(ming)為(wei)現用名(ming)湖北民(min)生生物醫(yi)藥有限(xian)公司(si))投資1500萬元實施了年(nian)(nian)產(chan)雙(shuang)烯(xi)(xi)200噸技(ji)改(gai)擴建(jian)(jian)(jian)項(xiang)目(mu)(mu)(mu)(2條100t/a雙(shuang)烯(xi)(xi)生產(chan)線,總生產(chan)規模(mo)為(wei)200t/a),項(xiang)目(mu)(mu)(mu)完成后公司(si)雙(shuang)烯(xi)(xi)總生產(chan)能力達(da)到350t/a,該項(xiang)目(mu)(mu)(mu)于(yu)2010年(nian)(nian)7月(yue)開(kai)工(gong)建(jian)(jian)(jian)設,2010年(nian)(nian)12月(yue)完工(gong)。由于(yu)種(zhong)種(zhong)原(yuan)因,公司(si)原(yuan)150t/a皂素生產(chan)線的(de)關停、污水處理(li)站擴建(jian)(jian)(jian)、鍋爐房改(gai)造及年(nian)(nian)產(chan)雙(shuang)烯(xi)(xi)200噸技(ji)改(gai)擴建(jian)(jian)(jian)項(xiang)目(mu)(mu)(mu)建(jian)(jian)(jian)設過程中未履行環(huan)境影(ying)響(xiang)評(ping)價手(shou)續,應按(an)規定補(bu)辦(ban)項(xiang)目(mu)(mu)(mu)的(de)環(huan)境影(ying)響(xiang)評(ping)價手(shou)續。

十堰生產環氧孕酮批發

1、抑制子宮收縮,改變子宮肌細胞膜的通透性,降低子宮肌肉興奮性、傳導性,從而使胚胎不受影響,維持妊娠。雖說黃體酮是保胎藥,但其保胎作用是有限的,孕婦黃體分泌不足的情況下,可在醫生指導下使用。但是,在妊娠早期不宜過量使用黃體酮,這樣可能會使胎兒發生畸形的危險。要正確認識和使用其藥物。十堰生產環氧孕酮批發2、降低(di)子(zi)宮興(xing)奮,確保胎(tai)兒(er)安全生(sheng)長發育(yu)由黃(huang)(huang)(huang)體(ti)(ti)(ti)(ti)分泌的(de)(de)孕激素(su),不(bu)僅可(ke)(ke)以(yi)使(shi)子(zi)宮粘膜內腺(xian)體(ti)(ti)(ti)(ti)生(sheng)長,子(zi)宮充血(xue),內膜增厚,還(huan)可(ke)(ke)以(yi)為受精卵著床(chuang)做(zuo)好(hao)鋪墊,著床(chuang)后產生(sheng)胎(tai)盤,同時還(huan)可(ke)(ke)以(yi)減少(shao)子(zi)宮興(xing)奮性,抑制(zhi)其(qi)(qi)活(huo)動,使(shi)胎(tai)兒(er)安全生(sheng)長發育(yu)。3、催(cui)月(yue)經(jing)很多女性往(wang)往(wang)通過注(zhu)射或(huo)服用(yong)(yong)(yong)黃(huang)(huang)(huang)體(ti)(ti)(ti)(ti)酮(tong)藥(yao)物(wu)崔經(jing),在(zai)停止(zhi)用(yong)(yong)(yong)藥(yao)后的(de)(de)幾(ji)天內就可(ke)(ke)以(yi)來月(yue)經(jing)了。但要(yao)知(zhi)道(dao)的(de)(de)是,黃(huang)(huang)(huang)體(ti)(ti)(ti)(ti)酮(tong)屬于處方藥(yao),要(yao)去醫院在(zai)醫生(sheng)的(de)(de)指導下使(shi)用(yong)(yong)(yong),而且在(zai)月(yue)經(jing)期(qi)間(jian)是不(bu)能(neng)(neng)(neng)服用(yong)(yong)(yong)黃(huang)(huang)(huang)體(ti)(ti)(ti)(ti)酮(tong)藥(yao)物(wu),否則易(yi)(yi)導致乳(ru)(ru)房(fang)出現脹(zhang)痛或(huo)是陰道(dao)不(bu)規則流(liu)血(xue)的(de)(de)情況(kuang)。4、其(qi)(qi)他(ta)適量服用(yong)(yong)(yong)黃(huang)(huang)(huang)體(ti)(ti)(ti)(ti)酮(tong)能(neng)(neng)(neng)夠促進體(ti)(ti)(ti)(ti)內催(cui)乳(ru)(ru)素(su)的(de)(de)釋放,為分泌乳(ru)(ru)汁做(zuo)好(hao)準備,但切不(bu)可(ke)(ke)大劑量的(de)(de)服用(yong)(yong)(yong),否則會(hui)適得其(qi)(qi)反,阻止(zhi)乳(ru)(ru)汁分泌;同時,服用(yong)(yong)(yong)黃(huang)(huang)(huang)體(ti)(ti)(ti)(ti)酮(tong)還(huan)可(ke)(ke)以(yi)使(shi)子(zi)宮頸口閉合,并減少(shao)粘液分泌,讓精子(zi)不(bu)易(yi)(yi)通過,但過量服用(yong)(yong)(yong)會(hui)抑制(zhi)垂體(ti)(ti)(ti)(ti)促性腺(xian)激素(su)的(de)(de)分泌,妨礙(ai)排卵過程。 注(zhu)意事項: 服用(yong)(yong)(yong)或(huo)注(zhu)射黃(huang)(huang)(huang)體(ti)(ti)(ti)(ti)酮(tong)后可(ke)(ke)能(neng)(neng)(neng)出現乳(ru)(ru)房(fang)腫脹(zhang)、頭(tou)暈、惡心等癥狀(zhuang),有(you)的(de)(de)女性還(huan)可(ke)(ke)能(neng)(neng)(neng)會(hui)出現體(ti)(ti)(ti)(ti)重(zhong)增加或(huo)降低(di)等,長期(qi)服用(yong)(yong)(yong)會(hui)導致子(zi)宮內膜萎縮、月(yue)經(jing)量減少(shao)、肝功(gong)能(neng)(neng)(neng)異常等。黃(huang)(huang)(huang)體(ti)(ti)(ti)(ti)酮(tong)是一種激素(su)類(lei)的(de)(de)藥(yao)物(wu),不(bu)可(ke)(ke)長期(qi)使(shi)用(yong)(yong)(yong),會(hui)對(dui)身體(ti)(ti)(ti)(ti)有(you)一定(ding)副作用(yong)(yong)(yong),對(dui)于激素(su)類(lei)的(de)(de)藥(yao)物(wu)要(yao)盡量少(shao)用(yong)(yong)(yong)。若要(yao)服用(yong)(yong)(yong),最好(hao)是在(zai)醫生(sheng)的(de)(de)建議下使(shi)用(yong)(yong)(yong)。

十堰生產環氧孕酮批發

埃坡霉素是科研人員于1993年從非洲土壤中一種肉眼看不見的菌類“黏液菌”中提取發現的。動物實驗表明,它對乳腺癌、卵巢癌等8種人類腫瘤治療極為有效,其療效超過目前臨床上廣泛使用的紫杉醇等抗癌藥物的2000~4000倍,其作用原理是先抑制癌細胞增生,再減少致癌細胞,最后讓癌細胞完全消失。十堰生產環氧孕酮批發

十堰生產環氧孕酮批發

應用1.合成黃體酮步驟1 氫化水解:先在氫化罐中加入乙醇總量2/9的乙醇溶液,在氮氣保護下投入活性鎳,再將雙烯醇酮醋酸酯與余量的乙醇混合后抽入氫化罐中,將罐內溫度升至60±5℃,溶解30分鐘以上,用氫氣將罐內空氣置換干凈,再降溫,控制溫度在10-15℃之間通氫反應2-3小時,沉降,將上清液抽入水解反應罐,將溫度控制在15-20℃之間,滴加氫氧化鈉的飽和溶液,滴加完畢,保溫在1.5-2小時,用冰醋酸回調至PH=7.0,進行減壓濃縮,回收乙醇,直至把乙醇濃縮近干,出料,冷卻至5℃以下離心甩干,用溫水洗至無明顯泡沬,再離心甩干,送入烘箱烘干,即得孕烯醇酮。十堰生產環氧孕酮批發上述原料之(zhi)間的重(zhong)量(liang)(liang)份比為雙烯醇酮(tong)(tong)(tong)醋酸(suan)酯:乙(yi)醇:活(huo)性(xing)鎳:氫氧化鈉飽和溶液=1:30:2:0.2;步(bu)驟(zou)2 沃(wo)氏氧化:在(zai)沃(wo)氏氧化反(fan)應罐內先放入(ru)(ru)(ru)甲(jia)苯(ben)(ben),加(jia)熱(re)脫水(shui),冷卻至(zhi)(zhi)95-105℃,再(zai)加(jia)入(ru)(ru)(ru)環己酮(tong)(tong)(tong)和孕(yun)烯醇酮(tong)(tong)(tong),攪(jiao)拌溶解后再(zai)次脫水(shui),降溫至(zhi)(zhi)90℃以(yi)下(xia),投(tou)入(ru)(ru)(ru)異(yi)丙醇鋁,于110-115℃反(fan)應2小時(shi),冷卻至(zhi)(zhi)80℃,加(jia)2.5%冷稀硫酸(suan),靜置分層(ceng),分去水(shui)層(ceng),甲(jia)苯(ben)(ben)層(ceng)用水(shui)洗至(zhi)(zhi)中(zhong)性(xing),然后進行(xing)水(shui)汽沖餾,將(jiang)甲(jia)苯(ben)(ben)蒸出,剩余物離心甩干,即得黃(huang)體酮(tong)(tong)(tong)粗(cu)品(pin)(pin);步(bu)驟(zou)3 精制:將(jiang)乙(yi)醇抽入(ru)(ru)(ru)脫色罐中(zhong),再(zai)投(tou)入(ru)(ru)(ru)黃(huang)體酮(tong)(tong)(tong)粗(cu)品(pin)(pin),加(jia)熱(re)回流(liu)溶解,再(zai)投(tou)入(ru)(ru)(ru)活(huo)性(xing)氧化鋁與活(huo)性(xing)白(bai)土,加(jia)熱(re)回流(liu)60分鐘,趁熱(re)過濾到結晶罐中(zhong)進行(xing)濃縮,冷卻至(zhi)(zhi)5℃以(yi)下(xia),離心甩干,在(zai)70-75℃烘(hong)干,即得含量(liang)(liang)達到99.3%以(yi)上的黃(huang)體酮(tong)(tong)(tong)精品(pin)(pin)。

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