日本 IHI 正研發「海水煉黃金術」,真技術突破還是神話敘事?

動區BlockTempo

金價屢屢突破新高之際,日本 IHI 重工正在研發一項「海水煉金術」,想挑戰黃金稀缺性的根本邏輯。
(前情提要:Tether是黃金超級買家!2025 Q4增持27噸黃金,躋身全球前30大黃金持有者 )
(背景補充:為何黃金屢創新高、比特幣停滯不前?Delphi Digital:全因日債殖利率飆升向全球施壓 )

本文目錄

  • 從地底到海底的估值重構?
  • 從海洋退回溫泉:聰明的商業妥協
  • 投資者需要在意嗎?

地緣政治導致的避險需求、美元信心下滑加上投資者強大的買盤,讓黃金近期相當強勢,今(28)日稍早更是突破 5,300 美元再創歷史新高。在此背景下,日本 IHI 重工研究員福島康之拋出個一個創新的研究:挑戰從海水裡提煉黃金!

從地底到海底的估值重構?

我們知道黃金很難挖,且地殼裡的存貨稀缺,科學家共識認為可開採儲量大約只剩 5 萬噸,而人類幾千年來也就挖了 23 萬噸左右,這是金價能持續飆漲背後的物理基礎原因之一。

但 IHI 正在挑戰這個邏輯。福島康之的團隊研發出一種叫「生物吸附(Bio-sorption)」的技術。簡單來說,就是利用特定藻類的化學特性,去抓取海水中的氯化金離子,再把它們還原成金屬狀態。這比傳統的化學置換乾淨多了,不用搞那些劇毒的氰化物。

但這裡有個巨大的「但是」:物理現實是冷酷的。根據數據分析,海水中的黃金濃度非常低,大約只有 0.03 ppt(兆分之一)。這是什麼概念?

想像你試圖從一整個標準奧運泳池的水中,想精準過濾出一粒鹽。即便金價噴到 5,300 美元,你要處理幾千萬噸海水才能拿到幾公克金子,那個能源與設備成本可能會讓你破產。

從海洋退回溫泉:聰明的商業妥協

好消息是,IHI 沒瘋。他們很清楚這點,所以沒打算明天就去抽乾太平洋。他們的策略轉向了「濃度」,鎖定日本國內的溫泉水和深層礦山廢水。

這些地方的金濃度比海水高出幾個量級,而且本來就是需要處理的環境負擔。把「採礦」變成「廢棄物資源化」,這才是這項技術真正的商業性感之處。

這有點像頁岩油革命的前夜,只要技術在低成本場景跑通了,未來的邊際成本就會像溜滑梯一樣下來。

投資者需要在意嗎?

至於你是否需要擔心金價可能會暴跌?

事實上,從海水煉金並非新構想,約 100 年前的諾貝爾化學獎得主、德國化學家哈伯就曾嘗試,企圖為戰後德國籌措賠款,最終卻因成本過高而放棄。以目前狀況來說,還沒有任何現成技術,能讓這種「海水煉金」在投資回報率上打敗傳統礦山。

不過這場實驗提醒我們:在這個科技指數級爆炸的時代,沒有任何一種資產的護城河是絕對不可逾越的,即使是黃金或是比特幣。

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