Hanyar Haɗin Oxalic Acid Carbon Monoxide
Da farko wannan hanyar ta yi amfani da gishirin palladium da jan ƙarfe a matsayin abubuwan da ke ƙara kuzari, kuma ta gudanar da haɗakar carbon monoxide, oxygen, barasa, da nitric acid mai narkewa a 8-11 MPa da 90-100 °C. Da farko wannan amsawar tana samar da oxalate ester, wanda daga nan ake samar da hydrolyzed a ƙarƙashin yanayin dumama don samar da oxalic acid da barasa mai dacewa.
Wannan hanyar tana da tsarin kara kuzari guda ɗaya, babban aiki, kyakkyawan zaɓi, sauƙin murmurewa, tsaftar samfura mai yawa, da ƙarancin gurɓataccen samarwa. Duk da haka, tana da manyan buƙatu don tsarkake carbon monoxide, yawan amfani da shi, masu kara kuzari masu tsada, da kuma babban jari.
Ta amfani da Pd/C a matsayin mai kara kuzari, ana haɗa carbon monoxide da nitrite ester don haɗa oxalate ester a zafin 130 °C da matsin lamba na yanayi, tare da nitric oxide a matsayin samfurin da ya biyo baya. Ana samun oxalic acid da barasa mai dacewa ta hanyar hydrolyzing the oxalate ester. Maganin barasa da aka raba ana sake haɗa shi don samar da nitrite ester, wanda za'a iya sake amfani da shi.
Cibiyar Tsarin Abubuwa ta Fujian, Kwalejin Kimiyya ta China, ta gudanar da bincike kan rabon kayan aiki da yanayin saurin sararin samaniya daban-daban kan haɗakar dimethyl oxalate mai catalytic a cikin binciken abubuwan catalytic don haɗakar CO zuwa oxalic acid mai matsin lamba, kuma ta zaɓi yanayin amsawa mai dacewa. Ingantaccen mai catalyst na Pd (2.0%)/α-Al₂O₃ ya sami yawan amfanin sararin samaniya na 999 g/L·h a ƙarƙashin yanayin matsin lamba na yanayi, 140 °C, CO/CH₃ONO=1.5, da saurin sararin samaniya na 3000/h. Cibiyar ta yi haɗin gwiwa da Cibiyar Zane-zanen Man Fetur ta Fujian da Kamfanin Fujian Nanqing Ammoniya don gudanar da gwajin gwaji na 100 t/a na dawo da CO daga gogewar jan ƙarfe na ammonia na roba, haɗakar dimethyl oxalate mai catalytic mai matsin lamba na yanayi, da kuma hydrolysis zuwa oxalic acid.
Idan aka kwatanta da hanyar ruwa-mataki, wannan hanyar tana da zaɓi mai yawa, tsari mai sauƙi, tsaftar samfura mai yawa, da ƙarancin farashin samarwa. Tana iya amfani da iskar gas ko kwal a matsayin kayan aiki, kuma tana iya amfani da carbon monoxide da aka samo daga ammonia copper clearing ko yellow phosphorus innervement, blast tanderu, da kuma converter tail gas a matsayin tushen iskar carbon monoxide. A lokaci guda, tana iya samar da kayan aiki masu araha don samar da ethylene glycol da haɗin kai tare da oxalate ester a matsayin matsakaici.

Kamfanin Shandong Pulisi Chemical Co., Ltd. | Mai Ba da Acid na Oxalic Premium
An kafa Pulisi Chemical a shekarar 2006, ta ƙware a fannin sinadarin oxalic acid mai tsafta (CAS 144-62-7) wanda ya bi ƙa'idodin fitar da kayayyaki na ƙasashen duniya don masana'antu da kuma waɗanda aka inganta. Cibiyar kera kayayyakinmu da ke Zibo tana tabbatar da ingantaccen kula da inganci, tare da sinadarin oxalic acid mai inganci a masana'antu wanda ke da tsafta aƙalla kashi 96% da kuma tsafta mai inganci har zuwa kashi 99.6%—wanda ke biyan buƙatun masana'antu daban-daban.
Oxalic acid ɗinmu ya shahara saboda kyawun narkewar sa da kuma kaddarorin sinadarai masu dorewa, yana aiki a matsayin kayan masarufi masu amfani a sassa daban-daban. A fannin sarrafa ƙarfe, yana cire tsatsa da yadudduka masu ɗauke da iskar oxygen daga ƙarfe, aluminum, da jan ƙarfe cikin inganci, yana haɓaka mannewar shafi don aikace-aikacen motoci, sararin samaniya, da electroplating. A cikin yadi, yana aiki a matsayin wakili mai laushi da gyara rini mai kyau ga muhalli, yana inganta saurin launin yadi da haske.
Bugu da ƙari, ana amfani da shi sosai a fannin haɗa magunguna, sarrafa itace, cire ƙarfe mai wuya, da kuma maganin ruwa. An ba da takardar shaidar ISO 9001 da EU REACH, muna samar da marufi mai nauyin kilogiram 25 don yin oda mai yawa, tare da tabbatar da wadatar da ake samu a duk duniya. Ko don manyan masana'antu ko aikace-aikace masu tsada, Pulisi Chemical yana ba da ingantaccen inganci da tallafi na ƙwararru.